* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #00d4ff;
    --primary-dark: #00b8e6;
    --text-white: #ffffff;
    --bg-dark: #020617;
    --bg-darker: #000000;
    --text-gray: rgba(255, 255, 255, 0.8);
    --gradient-start: #00d4ff;
    --gradient-end: #6366f1;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-dark);
    color: var(--text-white);
    overflow-x: hidden;
    position: relative;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Animated Background */
.animated-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(180deg, 
        rgba(10, 14, 39, 0.95) 0%,
        rgba(5, 8, 20, 0.98) 50%,
        rgba(0, 0, 0, 1) 100%);
    overflow: hidden;
}

.animated-background::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(56, 189, 248, 0.25) 0%, transparent 55%),
        radial-gradient(circle at 80% 70%, rgba(129, 140, 248, 0.22) 0%, transparent 55%),
        radial-gradient(circle at 40% 60%, rgba(59, 130, 246, 0.18) 0%, transparent 55%);
}

/* Particles Effect */
.animated-background {
    background-image: 
        radial-gradient(2px 2px at 20px 30px, rgba(255, 255, 255, 0.4), transparent),
        radial-gradient(2px 2px at 60px 70px, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(1px 1px at 50px 50px, rgba(255, 255, 255, 0.5), transparent),
        radial-gradient(1px 1px at 80px 10px, rgba(255, 255, 255, 0.4), transparent),
        radial-gradient(2px 2px at 90px 40px, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(1px 1px at 33px 90px, rgba(255, 255, 255, 0.4), transparent),
        radial-gradient(2px 2px at 40px 60px, rgba(255, 255, 255, 0.5), transparent);
    background-size: 200px 200px;
    background-position: 0 0, 40px 60px, 130px 270px, 70px 100px, 20px 180px, 150px 50px, 100px 200px;
    animation: moveParticles 20s linear infinite;
}

@keyframes moveParticles {
    0% {
        background-position: 0 0, 40px 60px, 130px 270px, 70px 100px, 20px 180px, 150px 50px, 100px 200px;
    }
    50% {
        background-position: 100px 100px, 140px 160px, 230px 370px, 170px 200px, 120px 280px, 250px 150px, 200px 300px;
    }
    100% {
        background-position: 0 0, 40px 60px, 130px 270px, 70px 100px, 20px 180px, 150px 50px, 100px 200px;
    }
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    padding: 20px 0;
    min-height: 70px;
    display: flex;
    align-items: center;
    transition: transform 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
    transform: translateY(0);
}

.header.hidden {
    transform: translateY(-100%);
}

.header.stuck {
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.header.stuck .logo-text {
    background: linear-gradient(135deg, #111, #333);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header.stuck .nav-link {
    color: #666;
}

.header.stuck .nav-link:hover {
    color: #111;
}

.header.stuck .nav-link.active {
    color: #2293D7;
}

.header.stuck .hamburger-line {
    background: #111;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-white);
    flex-shrink: 0;
    z-index: 1001;
}

.logo-img {
    width: 24px;
    height: 24px;
    display: block;
    transition: transform 0.3s ease;
    background: transparent;
    border: none;
    padding: 0;
    margin: 0;
    object-fit: contain;
}

.logo:hover .logo-img {
    transform: scale(1.1);
}

.logo-text {
    background: linear-gradient(135deg, var(--text-white), rgba(255, 255, 255, 0.8));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 32px;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.nav-link {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    position: relative;
}

.nav-link:hover {
    color: var(--text-white);
}

.nav-link.active {
    color: var(--primary-color);
}

.header-right {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 24px;
    justify-content: flex-end;
}

/* Hamburger Menu */
.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    position: relative;
    flex-shrink: 0;
    margin-left: auto;
    order: 3;
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background: var(--text-white);
    border-radius: 2px;
    transition: all 0.3s ease;
    display: block;
}

.hamburger-menu.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

.hamburger-menu.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: translateX(-20px);
}

.hamburger-menu.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(10px, -10px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 310px;
    height: 100vh;
    background: #0a0e27;
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    padding-top: 80px;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.3);
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    padding: 20px 0;
    gap: 0;
}

.mobile-nav-link {
    color: #ffffff;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 18px 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-family: "Montserrat", sans-serif;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
}

.phone-number {
    color: var(--text-white);
    font-weight: 500;
    font-size: 15px;
}

.btn-contact {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--bg-dark);
    border: none;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 70px;
}

/* Pricing Container */
.pricing-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pricing-header {
    text-align: center;
    margin-bottom: 50px;
}

.pricing-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 16px;
    font-family: 'Inter', sans-serif;
}

.pricing-subtitle {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    width: 100%;
    max-width: 1000px;
}

/* Pricing Card */
.pricing-card {
    background: rgba(10, 14, 39, 0.35);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
    border-color: rgba(255, 255, 255, 0.25);
}

.card-header {
    margin-bottom: 20px;
}

.card-header-premium {
    background: #2293D7;
    margin: -32px -32px 20px -32px;
    padding: 12px 32px;
    border-radius: 16px 16px 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.premium-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #ffffff;
    font-weight: 600;
    font-size: 14px;
}

.badge-icon {
    font-size: 16px;
}

.badge-text {
    letter-spacing: 0.5px;
}

.card-title {
    font-size: 32px;
    font-weight: 700;
    color: #000000;
    margin-bottom: 16px;
    text-align: left;
}

.card-price {
    margin-bottom: 16px;
}

.price-amount {
    font-size: 36px;
    font-weight: 700;
    color: #000000;
}

.price-period {
    font-size: 18px;
    color: #666666;
    margin-left: 4px;
}

.card-description {
    margin-bottom: 24px;
    color: #666666;
    font-size: 14px;
    line-height: 1.6;
}

.card-description p {
    margin: 4px 0;
}

/* Account Selector */
.account-selector {
    background: #2293D7;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
}

.selector-label {
    color: #ffffff;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 12px;
    text-align: center;
}

.account-buttons {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.account-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: #ffffff;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 50px;
}

.account-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.account-btn.active {
    background: #ffffff;
    color: #2293D7;
}

.account-selected {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: #ffffff;
    font-size: 13px;
    font-weight: 500;
}

.selected-icon {
    font-size: 14px;
}

/* Card Features */
.card-features {
    list-style: none;
    padding: 0;
    margin: 0 0 24px 0;
    flex: 1;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 14px;
    line-height: 1.5;
}

.feature-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
}

.feature-included .feature-icon {
    color: #22c55e;
}

.feature-included-premium .feature-icon {
    color: #2293D7;
}

.feature-excluded .feature-icon {
    color: #999999;
}

.feature-text {
    color: #333333;
    flex: 1;
}

.feature-limit {
    color: #666666;
    font-size: 13px;
    margin-left: 4px;
}

.feature-info {
    color: #2293D7;
    font-size: 12px;
    margin-left: 4px;
    cursor: help;
}

/* Card Buttons */
.card-button {
    width: 100%;
    padding: 14px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: auto;
}

.card-button-free {
    background: #e5e5e5;
    color: #333333;
}

.card-button-free:hover {
    background: #d4d4d4;
    transform: translateY(-2px);
}

.card-button-premium {
    background: #2293D7;
    color: #ffffff;
}

.card-button-premium:hover {
    background: #1a7bb8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(34, 147, 215, 0.4);
}

/* FREE Card Specific Styles */
.card-body-free {
    padding: 24px;
    display: flex;
    flex-direction: column;
}

.card-header-free {
    text-align: center;
    min-height: 190px;
    margin-top: 24px;
    margin-bottom: 0;
}

.card-title-free {
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
}

.card-header-free .card-price {
    margin-bottom: 8px;
}

.card-header-free .price-amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: #ffffff;
}

.card-header-free .price-period {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-left: 4px;
}

.card-desc-main {
    color: rgba(255, 255, 255, 0.85);
    margin-top: 8px;
    margin-bottom: 0;
    font-size: 14px;
}

.card-desc-sub {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.875rem;
    margin: 0;
}

.card-features-free {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
    flex-grow: 1;
}

.feature-item-free {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 12px;
    padding-bottom: 12px;
    border: none;
}

.feature-left {
    display: flex;
    align-items: center;
}

.feature-item-free .feature-icon {
    margin-right: 8px;
    font-size: 16px;
}

.feature-item-free.feature-included .feature-icon {
    color: #4ade80;
}

.feature-item-free.feature-excluded .feature-icon {
    color: rgba(255, 255, 255, 0.5);
}

.feature-item-free .feature-text {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.95);
    font-size: 14px;
}

.feature-badge {
    margin-left: 8px;
    font-size: 0.85em;
    background-color: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.95);
    padding: 4px 8px;
    border-radius: 4px;
    cursor: help;
}

.feature-info-icon {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.75em;
    cursor: help;
}

.card-button-wrapper {
    margin-top: 24px;
    text-align: center;
}

.card-button-wrapper .card-button-free {
    border-radius: 50px;
    padding: 12px 40px;
    font-weight: 700;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.6);
    color: #ffffff;
    width: auto;
    margin-top: 0;
}

.card-button-wrapper .card-button-free:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.9);
}

/* PREMIUM Card Specific Styles */
.pricing-card-premium {
    background: rgba(10, 14, 39, 0.35);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 2px solid rgba(34, 147, 215, 0.6);
    border-radius: 20px;
    position: relative;
    padding: 0;
}

.premium-badge-top {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    z-index: 10;
}

.badge-premium-text {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, rgb(33, 150, 243) 0%, rgb(25, 118, 210) 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.badge-moon-icon {
    flex-shrink: 0;
    color: white;
    vertical-align: middle;
}

.card-body-premium {
    padding: 24px;
    display: flex;
    flex-direction: column;
    margin-top: 20px;
}

.card-header-premium-content {
    text-align: center;
    margin-top: 24px;
    margin-bottom: 20px;
}

.card-title-premium {
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 8px;
    color: #ffffff;
    font-size: 18px;
}

.card-price-premium {
    margin-bottom: 8px;
}

.price-amount-premium {
    font-size: 3rem;
    font-weight: 700;
    color: #ffffff;
}

.price-period-premium {
    font-size: 1em;
    color: rgba(255, 255, 255, 0.85);
    margin-left: 4px;
}

.card-desc-premium {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85em;
    margin: 0;
}

.account-selector-premium {
    padding: 16px;
    border-radius: 12px;
    background: rgba(34, 147, 215, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: rgba(21, 101, 192, 0.35) 0px 4px 20px;
    margin-bottom: 20px;
}

.selector-label-premium {
    text-align: center;
    margin-bottom: 12px;
    color: rgb(255, 255, 255);
    font-size: 0.9em;
    font-weight: 500;
    text-shadow: rgba(0, 0, 0, 0.1) 0px 1px 2px;
}

.selector-icon {
    margin-right: 8px;
}

.account-buttons-premium {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.account-btn-premium {
    min-width: 40px;
    width: 40px;
    max-width: 40px;
    min-height: 40px;
    height: 40px;
    max-height: 40px;
    padding: 0;
    margin: 0;
    border: none;
    border-radius: 12px;
    font-weight: 500;
    font-size: 0.95em;
    cursor: pointer;
    transition: 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background-color: rgba(255, 255, 255, 0.15);
    color: rgb(255, 255, 255);
    box-shadow: none;
}

.account-btn-premium.active {
    background-color: rgba(255, 255, 255, 0.95);
    color: rgb(21, 101, 192);
    font-weight: 700;
    box-shadow: rgba(0, 0, 0, 0.2) 0px 4px 15px;
}

.account-btn-premium:hover {
    background-color: rgba(255, 255, 255, 0.25);
}

.account-btn-premium.active:hover {
    background-color: rgb(255, 255, 255);
}

.account-selected-premium {
    text-align: center;
    margin-top: 12px;
}

.selected-icon-premium {
    margin-right: 6px;
}

.selected-text-premium {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.95);
    color: rgb(21, 101, 192);
    font-size: 0.9em;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 20px;
    box-shadow: rgba(0, 0, 0, 0.2) 0px 2px 8px;
}

.card-features-premium {
    margin-bottom: 20px;
}

.feature-item-premium {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.feature-item-premium:last-child {
    border-bottom: none;
}

.feature-left-premium {
    display: flex;
    align-items: center;
}

.feature-icon-premium {
    margin-right: 8px;
    font-size: 16px;
}

.feature-premium-blue .feature-icon-premium {
    color: #60a5fa;
}

.feature-premium-green .feature-icon-premium {
    color: #4ade80;
}

.feature-text-premium {
    color: rgba(255, 255, 255, 0.95);
    font-size: 14px;
    font-weight: 500;
}

.feature-badge-premium {
    font-size: 0.8em;
    padding: 4px 10px;
    border-radius: 12px;
    font-weight: 600;
}

.feature-badge-blue {
    background-color: rgb(30, 136, 229);
    color: rgb(255, 255, 255);
}

.feature-badge-green {
    background-color: rgb(16, 185, 129);
    color: rgb(255, 255, 255);
}

.feature-info-icon-premium {
    color: #4ade80;
    font-size: 0.9em;
    cursor: help;
}

.feature-separator {
    margin: 8px 0;
    border-color: rgba(255, 255, 255, 0.2);
    border-width: 1px;
}

.card-button-wrapper-premium {
    margin-top: auto;
    padding-top: 16px;
    text-align: center;
}

.card-button-premium {
    background: linear-gradient(135deg, rgb(33, 150, 243) 0%, rgb(25, 118, 210) 100%);
    color: white;
    border: none;
    border-radius: 50px;
    padding: 12px 40px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(25, 118, 210, 0.4);
    width: auto;
}

.card-button-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(25, 118, 210, 0.5);
}

/* FAQ Section */
.faq-section {
    width: 100%;
    max-width: 1000px;
    margin-top: 60px;
    padding: 40px;
    background: transparent;
    border: none;
    box-shadow: none;
}

.faq-title {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    text-align: center;
    margin-bottom: 32px;
}

.faq-container {
    width: 100%;
}

.faq-item {
    background: transparent;
    border: none;
    border-radius: 0;
    margin-bottom: 24px;
    overflow: visible;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 16px;
}

.faq-item:last-child {
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
}

.faq-item:hover {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.faq-question {
    padding: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    transition: opacity 0.3s;
}

.faq-question:hover {
    opacity: 0.9;
}

.faq-question.active {
    opacity: 1;
}

.faq-question-text {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    flex: 1;
    line-height: 1.5;
}

.faq-icon {
    color: rgba(255, 255, 255, 0.9);
    font-size: 12px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-question.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
}

.faq-answer-content {
    padding: 0 20px 20px 20px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    line-height: 1.7;
}

/* Upgrade Selection Section */
.upgrade-selection-container {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

.btn-back {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    margin-bottom: 30px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-back:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: #ffffff;
}

.upgrade-selection-title {
    font-size: 32px;
    font-weight: 700;
    color: #ffffff;
    text-align: center;
    margin-bottom: 40px;
}

.progress-steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin-bottom: 50px;
    position: relative;
}

.progress-steps::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: rgba(255, 255, 255, 0.2);
    z-index: 0;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    transition: all 0.3s ease;
}

.progress-step.active .step-number {
    background: #2293D7;
    border-color: #2293D7;
    color: #ffffff;
}

.step-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    font-weight: 500;
}

.progress-step.active .step-label {
    color: #ffffff;
    font-weight: 600;
}

/* Upgrade Method Selection */
.upgrade-method-selection {
    margin-bottom: 40px;
}

.method-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.method-option {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.method-option:hover {
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.method-option.active {
    border-color: #ff6b35;
    background: rgba(255, 107, 53, 0.1);
}

.method-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.method-title {
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    margin: 0;
}

.method-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.method-badge-recommended {
    background: #4ade80;
    color: #ffffff;
}

.method-badge-flexible {
    background: #2293D7;
    color: #ffffff;
}

.method-description {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    line-height: 1.5;
}

/* ZAX ID Section */
.zax-id-section {
    margin-bottom: 40px;
}

.zax-id-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.zax-id-help {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: help;
    color: rgba(255, 255, 255, 0.7);
    font-size: 12px;
    transition: all 0.3s ease;
}

.zax-id-help:hover {
    background: rgba(255, 255, 255, 0.3);
    color: #ffffff;
}

.zax-id-input-wrapper {
    margin-bottom: 8px;
}

.zax-id-input {
    width: 100%;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    color: #ffffff;
    font-size: 15px;
    transition: all 0.3s ease;
}

.zax-id-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.zax-id-input:focus {
    outline: none;
    border-color: #2293D7;
    background: rgba(255, 255, 255, 0.15);
}

.zax-id-hint {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.duration-price-content {
    display: block;
}

.duration-activation-btn {
    width: 100%;
    padding: 12px 20px;
    background: rgba(34, 147, 215, 0.2);
    border: 1px solid rgba(34, 147, 215, 0.4);
    border-radius: 8px;
    color: #2293D7;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 12px;
    transition: all 0.3s ease;
}

.duration-activation-btn:hover {
    background: rgba(34, 147, 215, 0.3);
    border-color: rgba(34, 147, 215, 0.6);
}

/* Activation Quantity Section */
.activation-quantity-section {
    margin-bottom: 40px;
}

.quantity-control {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
}

.quantity-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: #ffffff;
    font-size: 20px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.quantity-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.quantity-btn:active {
    transform: scale(0.95);
}

.quantity-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.quantity-number {
    font-size: 32px;
    font-weight: 700;
    color: #ffffff;
}

.quantity-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.duration-selection {
    margin-bottom: 40px;
}

/* Payment Section */
.payment-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.payment-order-box {
    background: rgba(34, 147, 215, 0.1);
    border: 2px solid #2293D7;
    border-radius: 12px;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.payment-order-info {
    flex: 1;
}

.payment-order-title {
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
}

.payment-order-subtitle {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

.payment-order-price {
    font-size: 24px;
    font-weight: 700;
    color: #2293D7;
}

.payment-method-selection {
    display: flex;
    gap: 16px;
    margin-bottom: 30px;
}

.payment-method-btn {
    flex: 1;
    padding: 16px 24px;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    color: #ffffff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: all 0.3s ease;
}

.payment-method-btn:hover {
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.05);
}

.payment-method-btn.active {
    border-color: #ff6b35;
    background: rgba(255, 107, 53, 0.1);
}

.payment-method-btn.active .fa-check-circle {
    color: #4ade80;
}

.payment-method-btn i {
    font-size: 18px;
}

.payment-content {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 30px;
}

.payment-instructions {
    margin-bottom: 30px;
}

.payment-instructions-title {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 20px;
}

.payment-steps {
    display: flex;
    gap: 24px;
    justify-content: center;
}

.payment-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.payment-step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #2293D7;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
}

.payment-step-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
}

.payment-main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.payment-qr-column {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.payment-qr-header {
    margin-bottom: 20px;
}

.vietqr-logo {
    font-size: 24px;
    font-weight: 700;
    color: #dc2626;
    letter-spacing: 2px;
}

.payment-qr-code-wrapper {
    margin-bottom: 20px;
}

.payment-qr-code {
    width: 250px;
    height: 250px;
    background: #ffffff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.qr-placeholder {
    text-align: center;
    color: #666;
}

.qr-placeholder i {
    font-size: 48px;
    color: #999;
    margin-bottom: 12px;
}

.qr-placeholder p {
    font-size: 14px;
    color: #999;
    margin: 0;
}

/* QR Loading Spinner (vòng tròn xoay) */
.qr-placeholder.qr-loading p {
    display: none;
}

.qr-loading-spinner {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 4px solid rgba(148, 163, 184, 0.45);
    border-top-color: rgba(0, 210, 255, 0.95);
    box-shadow: 0 0 18px rgba(0, 210, 255, 0.25);
    animation: qrSpinnerSpin 0.8s linear infinite;
}

@keyframes qrSpinnerSpin {
    to { transform: rotate(360deg); }
}

/* Payment confirm (bước 3) */
.payment-confirm-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 32px;
}

.payment-confirm-card {
    max-width: 520px;
    width: 100%;
    background: radial-gradient(circle at top, rgba(56, 189, 248, 0.18), rgba(15, 23, 42, 0.98));
    border-radius: 24px;
    border: 1px solid rgba(148, 163, 184, 0.4);
    padding: 32px 28px 28px;
    box-shadow:
        0 24px 60px rgba(15, 23, 42, 0.85),
        0 0 0 1px rgba(15, 23, 42, 0.9);
    text-align: center;
}

.payment-confirm-spinner {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.confirm-spinner-ring {
    width: 72px;
    height: 72px;
    border-radius: 999px;
    border: 4px solid rgba(148, 163, 184, 0.35);
    border-top-color: rgba(56, 189, 248, 0.95);
    border-right-color: rgba(59, 130, 246, 0.85);
    box-shadow:
        0 0 18px rgba(56, 189, 248, 0.65),
        0 0 32px rgba(59, 130, 246, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: confirmSpinnerSpin 0.9s linear infinite;
}

.confirm-spinner-core {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    background: radial-gradient(circle at 30% 20%, #e5f3ff, #38bdf8);
    box-shadow:
        inset 0 0 12px rgba(15, 23, 42, 0.65),
        0 0 18px rgba(56, 189, 248, 0.9);
}

@keyframes confirmSpinnerSpin {
    to { transform: rotate(360deg); }
}

.payment-confirm-title {
    font-size: 22px;
    font-weight: 700;
    color: #e5f3ff;
    margin-bottom: 8px;
}

.payment-confirm-subtitle {
    font-size: 14px;
    color: rgba(226, 232, 240, 0.85);
    margin-bottom: 20px;
}

.payment-confirm-info {
    background: rgba(15, 23, 42, 0.88);
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.35);
    padding: 16px 18px;
    text-align: left;
    margin-bottom: 20px;
}

.payment-confirm-info .info-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 14px;
    margin-bottom: 6px;
}

.payment-confirm-info .info-row:last-child {
    margin-bottom: 0;
}

.payment-confirm-info .info-label {
    color: rgba(148, 163, 184, 0.95);
}

.payment-confirm-info .info-value {
    color: #e5f3ff;
    font-weight: 600;
}

.payment-confirm-actions {
    display: flex;
    justify-content: center;
    margin-top: 10px;
}

.payment-confirm-card.payment-confirm-success .confirm-spinner-ring {
    border-top-color: #22c55e;
    border-right-color: #16a34a;
    box-shadow:
        0 0 20px rgba(34, 197, 94, 0.8),
        0 0 34px rgba(22, 163, 74, 0.7);
}

.payment-confirm-card.payment-confirm-success .confirm-spinner-core {
    background: radial-gradient(circle at 30% 20%, #ecfdf3, #22c55e);
}

.payment-confirm-card.payment-confirm-timeout .confirm-spinner-ring {
    border-top-color: #f97316;
    border-right-color: #ea580c;
    box-shadow:
        0 0 20px rgba(249, 115, 22, 0.8),
        0 0 34px rgba(234, 88, 12, 0.7);
}

.payment-confirm-card.payment-confirm-timeout .confirm-spinner-core {
    background: radial-gradient(circle at 30% 20%, #fff7ed, #fb923c);
}


/* QR scan effect */
.qr-scan-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    display: block;
    border-radius: 8px;
}

.scan-line {
    position: absolute;
    left: 10%;
    right: 10%;
    top: -12px;
    height: 10px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(0, 255, 255, 0), rgba(0, 210, 255, 0.95), rgba(0, 255, 255, 0));
    box-shadow:
        0 0 12px rgba(0, 210, 255, 0.85),
        0 0 28px rgba(56, 189, 248, 0.65);
    /* Linear + duration ngắn để đảo chiều nhanh, không bị "khựng" ở 2 đầu */
    animation: qrScanMove 1.05s linear infinite alternate;
    pointer-events: none;
    opacity: 0.95;
    mix-blend-mode: screen;
}

@keyframes qrScanMove {
    0% { transform: translateY(0); opacity: 0.25; }
    15% { opacity: 0.95; }
    85% { opacity: 0.95; }
    100% { transform: translateY(260px); opacity: 0.25; }
}

@media (prefers-reduced-motion: reduce) {
    .scan-line {
        animation: none;
        display: none;
    }
}

.payment-qr-banks {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.payment-bank-logo {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
}

.payment-qr-details {
    text-align: center;
    margin-bottom: 16px;
}

.payment-account-number {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 8px;
}

.payment-amount-display {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

.btn-download-qr {
    padding: 12px 24px;
    background: #2293D7;
    border: none;
    border-radius: 8px;
    color: #ffffff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    transition: all 0.3s ease;
}

.btn-download-qr:hover {
    background: #1a7bb8;
    transform: translateY(-2px);
}

.btn-retry-qr {
    margin-top: 12px;
    padding: 10px 20px;
    background: #ff6b35;
    border: none;
    border-radius: 6px;
    color: #ffffff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-retry-qr:hover {
    background: #e55a28;
    transform: translateY(-1px);
}

.payment-qr-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid rgba(255, 107, 53, 0.3);
    border-radius: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
}

.payment-qr-info i {
    color: #ff6b35;
}

.payment-info-column {
    display: flex;
    flex-direction: column;
}

.payment-info-title {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 8px;
}

.payment-info-subtitle {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 24px;
}

.payment-info-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.payment-info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.payment-info-item:last-child {
    border-bottom: none;
}

.payment-info-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

.payment-info-value {
    font-size: 14px;
    font-weight: 600;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-copy {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.8);
    padding: 4px 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-copy:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: #ffffff;
}

.payment-manual-info {
    padding: 20px;
}

.payment-manual-title {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 24px;
}

.payment-manual-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.payment-manual-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.payment-manual-item:last-child {
    border-bottom: none;
}

.payment-manual-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

.payment-manual-value {
    font-size: 14px;
    font-weight: 600;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 8px;
}

.payment-actions {
    display: flex;
    gap: 16px;
    margin-top: 30px;
}

.btn-payment-back {
    flex: 1;
    padding: 16px 24px;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    color: #ffffff;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-payment-back:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: #ffffff;
}

.btn-payment-confirm {
    flex: 1;
    padding: 16px 24px;
    background: #2293D7;
    border: none;
    border-radius: 12px;
    color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-payment-confirm:hover {
    background: #1a7bb8;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(34, 147, 215, 0.4);
}

.section-title {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 24px;
}

.duration-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.duration-option {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.duration-option:hover {
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.duration-option.active {
    border-color: #2293D7;
    background: rgba(34, 147, 215, 0.1);
}

.duration-label {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 12px;
}

.duration-price-wrapper {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 8px;
}

.duration-price-original {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    text-decoration: line-through;
}

.duration-price {
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
}

.duration-option.active .duration-price {
    color: #2293D7;
}

.duration-save {
    font-size: 12px;
    color: #4ade80;
    font-weight: 600;
    margin-top: 4px;
}

.order-summary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 24px;
    margin-top: 40px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    color: #ffffff;
}

.summary-label {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.9);
}

.summary-value {
    font-size: 15px;
    font-weight: 600;
    color: #ffffff;
}

.summary-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    margin: 16px 0;
}

.summary-total {
    padding-top: 16px;
}

.summary-total .summary-label {
    font-weight: 700;
    font-size: 16px;
}

.summary-total .summary-value {
    font-weight: 700;
    font-size: 18px;
    color: #ff6b35;
}

.btn-continue-payment {
    width: 100%;
    background: linear-gradient(135deg, rgb(33, 150, 243) 0%, rgb(25, 118, 210) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(25, 118, 210, 0.4);
}

.btn-continue-payment:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(25, 118, 210, 0.5);
}

/* Security Section */
.security-section {
    width: 100%;
    max-width: 1200px;
    margin-top: 60px;
    padding: 50px 40px;
    background: transparent;
    border: none;
    box-shadow: none;
    position: relative;
    overflow: visible;
}

.security-content {
    display: flex;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.security-text {
    flex: 1;
}

.security-title {
    font-size: 32px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 20px;
    line-height: 1.3;
}

.security-description {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 32px;
}

.security-features {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 32px;
}

.security-feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px 20px;
    background: transparent;
    border: none;
    border-radius: 0;
    transition: all 0.3s ease;
    min-width: 140px;
    flex: 1;
    max-width: 200px;
}

.security-feature-item:hover {
    transform: translateY(-4px);
}

.security-feature-icon {
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: transparent;
    border-radius: 0;
    transition: all 0.3s ease;
}

.security-feature-item:hover .security-feature-icon {
    transform: scale(1.1);
}

.security-feature-icon svg {
    width: 32px;
    height: 32px;
}

.security-feature-label {
    color: rgba(255, 255, 255, 0.95);
    font-size: 14px;
    font-weight: 600;
    text-align: center;
}

.security-note {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    line-height: 1.7;
    margin: 0;
}

.security-visual {
    flex: 0 0 auto;
    width: 100%;
    max-width: 320px;
}

.security-visual-card {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 48px 32px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: visible;
}

.security-visual-card:hover {
    transform: translateY(-8px);
}

.security-visual-icon {
    color: #ffffff;
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
    display: inline-block;
}

.security-visual-icon i.fa-fingerprint {
    color: #ffffff;
    filter: drop-shadow(0 4px 12px rgba(255, 255, 255, 0.2));
    display: block;
}

.security-visual-title {
    font-size: 20px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.security-visual-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
    position: relative;
    z-index: 1;
}

.hero-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: left;
    flex: 1;
}

.hero-title {
    font-family: "Montserrat", sans-serif;
    font-weight: 800;
    font-size: 72px;
    line-height: 1.15;
    letter-spacing: -0.5px;
    margin: 0px 0px 20px 0px;
    color: var(--text-white);
    max-width: 100%;
    text-align: left;
    width: 100%;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.hero-line-1 {
    display: inline;
    font-size: 1em;
}

.hero-line-2 {
    display: inline;
    font-size: 0.64em;
    font-family: "Montserrat", -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
}

.hero-keep-together {
    white-space: nowrap;
}

.hero-title .divider {
    margin-right: 8px;
    margin-left: 4px;
    color: #888888;
    white-space: nowrap;
}


.hero-features {
    list-style: none;
    padding: 0;
    margin: 30px 0 0 0;
    text-align: left;
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    color: var(--text-white);
}

.feature-icon {
    color: #2293D7;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.hero-feature-item span {
    font-size: 16px;
    line-height: 1.5;
}

.hero-feature-item strong {
    font-weight: 600;
}

.hero-download-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: #2293D7;
    color: #ffffff;
    border: none;
}

.btn-download:hover {
    background-color: #1a7bb8;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(34, 147, 215, 0.4);
}

.btn-download svg {
    width: 20px;
    height: 20px;
}

.hero-image {
    position: relative;
    z-index: 10;
    flex: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.hero-image-stack {
    position: relative;
    width: 100%;
    max-width: 600px;
    height: 580px;
}

.hero-image-item {
    position: absolute;
    width: 82%;
    max-width: 460px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.35);
    will-change: transform;
    backface-visibility: hidden;
}

.hero-image-back {
    transform: rotate(-4deg) translateZ(0);
    z-index: 1;
    width: 86%;
    top: 24px;
    right: 0;
    opacity: 1;
}

.hero-image-front {
    transform: rotate(3deg) translateZ(0);
    z-index: 2;
    width: 76%;
    top: 170px;
    left: 8px;
}

.hero-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.app-window-header {
    background: #f5f5f5;
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e0e0e0;
    font-size: 14px;
    font-weight: 600;
    color: #333;
}

.app-version {
    font-size: 12px;
    color: #666;
    font-weight: 400;
}

.app-window-content {
    padding: 16px;
    background: #ffffff;
}

.app-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    border-bottom: 2px solid #e0e0e0;
}

.app-tab {
    padding: 8px 16px;
    font-size: 14px;
    color: #666;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

.app-tab.active {
    color: #2293D7;
    border-bottom-color: #2293D7;
    font-weight: 600;
}

.app-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.app-list-item {
    padding: 12px;
    background: #f9f9f9;
    border-radius: 6px;
    font-size: 14px;
    color: #333;
}

/* Chat Widget */
.chat-widget {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 15px;
}

.chat-bubble {
    background: var(--text-white);
    color: var(--bg-dark);
    padding: 16px 20px;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    max-width: 280px;
    position: relative;
}

@keyframes floatMove {
    0%, 100% {
        transform: translateY(0px) translateX(0px);
    }
    25% {
        transform: translateY(-10px) translateX(5px);
    }
    50% {
        transform: translateY(-5px) translateX(-5px);
    }
    75% {
        transform: translateY(-15px) translateX(3px);
    }
}

.chat-bubble::after {
    content: '';
    position: absolute;
    bottom: -8px;
    right: 30px;
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid var(--text-white);
}

.chat-bubble p {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
    display: flex;
    align-items: center;
    gap: 8px;
}

.emoji {
    font-size: 18px;
}

.chat-button {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: white;
    border: 4px solid #0088cc;
    color: #0088cc;
    cursor: pointer;
    box-shadow: 
        0 8px 30px rgba(0, 136, 204, 0.4),
        0 2px 8px rgba(0, 136, 204, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: visible;
}

.chat-button::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border-radius: 50%;
    background: transparent;
    border: 3px solid rgba(0, 136, 204, 0.3);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.chat-button:hover::before {
    opacity: 1;
}

.chat-button:hover {
    transform: translateY(-4px) scale(1.08);
    box-shadow: 
        0 12px 40px rgba(0, 136, 204, 0.5),
        0 4px 12px rgba(0, 136, 204, 0.3);
    border-color: #00a0e0;
    background: #f8f9fa;
}

.chat-button:active {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 
        0 6px 20px rgba(0, 136, 204, 0.4),
        0 2px 6px rgba(0, 136, 204, 0.2);
}

.chat-icon {
    width: 36px;
    height: 36px;
    filter: drop-shadow(0 2px 4px rgba(0, 136, 204, 0.2));
    transition: transform 0.3s ease;
}

.chat-button:hover .chat-icon {
    transform: scale(1.15);
}


@keyframes floatButton {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-8px);
    }
}

/* Hero Wave Transition */
.hero {
    position: relative;
    overflow: hidden;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 220px;
    line-height: 0;
    z-index: 5;
    pointer-events: none;
}

.hero-wave svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* White Section */
.section-white {
    position: relative;
    background: #2293D7;
    color: #ffffff;
    padding: 120px 0 0;
    margin-top: 0;
    z-index: 10;
    min-height: 400px;
    overflow: hidden;
    border-bottom: 2px solid #000000;
}

.section-white .container {
    position: relative;
    z-index: 3;
    padding-bottom: 0;
}

.section-white-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-white h2 {
    font-size: 42px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 20px;
    text-align: center;
    font-family: "Montserrat", sans-serif;
}

.section-white p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

.section-white p strong {
    color: #ffffff;
    font-weight: 700;
}

/* Partners Grid */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    align-items: center;
    justify-items: center;
    padding: 0 10% 0;
    margin-bottom: 0;
}

.partner-item {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.partner-item:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

.partner-item img {
    max-width: 100%;
    max-height: 80px;
    height: auto;
    object-fit: contain;
    transition: all 0.3s ease;
}

.partner-item img.partner-logo-image {
    max-height: 80px !important;
    width: auto !important;
}

.partner-item img.partner-logo-text {
    max-height: 300px !important;
    height: auto !important;
    width: auto !important;
}

.partner-item img.partner-logo-fpt {
    max-height: 300px !important;
    height: auto !important;
    width: auto !important;
}

.partner-item:hover img {
    transform: scale(1.05);
}

/* Features Section Heading (combined with content section) */
.features-section-heading {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 40px 0 24px;
    text-align: center;
}

.features-section-title {
    margin: 0;
    color: #ffffff;
    font-family: "Montserrat", sans-serif;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.special-heading-inner-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
}

.special-heading-inner-wrap.tatsu-border-style2 {
    flex-direction: column;
}

.special-heading-inner-wrap.tatsu-border-style2 .tatsu-border {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: #2293D7;
    transform: translateY(-50%);
    z-index: 1;
}

.special-heading-inner-wrap.tatsu-border-style2.tatsu-expand .tatsu-border {
    animation: borderExpand 1.2s ease-out forwards;
    transform-origin: center;
}

@keyframes borderExpand {
    0% {
        transform: translateY(-50%) scaleX(0);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateY(-50%) scaleX(1);
        opacity: 1;
    }
}

.title-with-moon {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    position: relative;
    background: transparent;
    padding: 0;
    z-index: 2;
    cursor: pointer;
}

.moon-icon {
    width: 24px;
    height: 24px;
    color: #ffffff;
    stroke: #ffffff;
    fill: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.title-with-moon:hover .moon-icon {
    fill: #000000;
    stroke: #6b21a8;
    transform: rotate(360deg);
    animation: moonRotate 0.6s ease-in-out;
}

@keyframes moonRotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.special-heading-inner-wrap .tatsu-title {
    position: relative;
    margin: 0;
    color: #ffffff;
    font-family: "Montserrat", sans-serif;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    white-space: nowrap;
    background: transparent;
    padding: 0;
    z-index: 2;
    transition: color 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Wave at bottom of section-white */
.section-white {
    position: relative;
    background: #2293D7;
    color: #ffffff;
    padding: 120px 0 0;
    margin-top: 0;
    z-index: 10;
    min-height: 400px;
    overflow: hidden;
    border-bottom: 2px solid #000000;
}

.section-white-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 120px;
    line-height: 0;
    z-index: 11;
    pointer-events: none;
    overflow: visible;
}

.section-white-wave svg {
    width: 100%;
    height: 100%;
    display: block;
    position: relative;
}

.section-white-wave .wave-path-1 {
    fill: #2293D7;
    stroke: none;
}

.section-white-wave .wave-path-2 {
    fill: #2293D7;
    stroke: none;
}

.section-white-wave .wave-path-3 {
    fill: #2293D7;
    stroke: none;
}

/* Features Content Section */
.features-content-section {
    position: relative;
    background: linear-gradient(180deg, 
        rgba(34, 147, 215, 0.95) 0%,
        rgba(10, 14, 39, 0.98) 50%,
        rgba(5, 8, 20, 0.98) 100%);
    padding: 41px 0 0;
    z-index: 10;
    margin-top: 0;
    border-top: none;
    padding-top: 41px;
    overflow: hidden;
    border-bottom: none;
}

.features-content-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(56, 189, 248, 0.25) 0%, transparent 55%),
        radial-gradient(circle at 80% 70%, rgba(129, 140, 248, 0.22) 0%, transparent 55%),
        radial-gradient(circle at 40% 60%, rgba(59, 130, 246, 0.18) 0%, transparent 55%);
    pointer-events: none;
    z-index: 1;
}

.features-content-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, rgba(255, 255, 255, 0.4), transparent),
        radial-gradient(2px 2px at 60px 70px, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(1px 1px at 50px 50px, rgba(255, 255, 255, 0.5), transparent),
        radial-gradient(1px 1px at 80px 10px, rgba(255, 255, 255, 0.4), transparent),
        radial-gradient(2px 2px at 90px 40px, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(1px 1px at 33px 90px, rgba(255, 255, 255, 0.4), transparent),
        radial-gradient(2px 2px at 40px 60px, rgba(255, 255, 255, 0.5), transparent);
    background-size: 200px 200px;
    background-position: 0 0, 40px 60px, 130px 270px, 70px 100px, 20px 180px, 150px 50px, 100px 200px;
    animation: moveParticles 20s linear infinite;
    pointer-events: none;
    z-index: 1;
}

.features-content-row {
    display: flex;
    align-items: center;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.features-content-col {
    flex: 1;
}

.features-content-text {
    width: 58.6%;
}

.features-content-image {
    width: 41.4%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.features-content-inner {
    background: transparent;
}

.features-content-title-wrapper {
    margin-bottom: 24px;
    text-align: left;
}

.features-content-title-wrapper .special-heading-inner-wrap {
    display: inline-flex;
    padding: 0 20px;
}

.features-content-title-wrapper .special-heading-inner-wrap.tatsu-border-style2 {
    flex-direction: column;
}

.features-content-title-wrapper .special-heading-inner-wrap.tatsu-border-style2 .tatsu-border {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 0;
    background: transparent;
    transform: translateY(-50%);
    z-index: 1;
    display: none; /* Ẩn đường gạch ngang cho tiêu đề nội dung */
}

.features-content-title-wrapper .special-heading-inner-wrap.tatsu-border-style2.tatsu-expand .tatsu-border {
    animation: borderExpand 1.2s ease-out forwards;
    transform-origin: center;
}

.features-content-title-wrapper .special-heading-inner-wrap .features-content-title {
    position: relative;
    margin: 0;
    background: transparent;
    padding: 0;
    z-index: 2;
}

.features-content-title {
    margin: 0;
    font-family: -apple-system, 'system-ui', 'Segoe UI', Roboto, 'Oxygen-Sans', Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    font-size: 28px;
    font-weight: 700;
    line-height: 1.4;
}

.features-content-title span {
    color: #ffffff;
}

.features-content-list {
    list-style: none;
    padding: 0;
    margin: 0 0 32px 0;
}

.features-content-list li {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.8;
    margin-bottom: 12px;
    padding-left: 24px;
    position: relative;
}

.features-content-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #ffffff;
    font-weight: bold;
    font-size: 20px;
}

.features-content-list li span,
.features-content-list li strong {
    color: #ffffff;
}

.features-content-button {
    margin-top: 32px;
}

.btn-features-more {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 1);
    color: #2293D7;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-features-more:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.3);
}

.btn-features-more svg {
    flex-shrink: 0;
    margin-right: 8px;
    width: 16px;
    height: 16px;
}

.features-image-wrapper {
    width: 100%;
    max-width: 724px;
    padding-top: 50px;
}

.features-image-wrapper.fade-in-down {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.features-image-wrapper.fade-in-down.already-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Share Zalo Section - Inside features-content-section */
.share-zalo-row.fade-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.share-zalo-row.fade-in-right.already-visible {
    opacity: 1;
    transform: translateX(0);
}

@keyframes fadeInRight {
    0% {
        opacity: 0;
        transform: translateX(50px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

.share-zalo-row {
    display: flex;
    align-items: center;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.share-zalo-col {
    flex: 1;
}

.share-zalo-image {
    width: 66.67%;
}

.share-zalo-content {
    width: 33.33%;
}

.share-zalo-inner {
    background: transparent;
    padding: 0;
}

.share-zalo-title {
    margin: 0 0 24px 0;
    font-family: -apple-system, 'system-ui', 'Segoe UI', Roboto, 'Oxygen-Sans', Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    font-size: 28px;
    font-weight: 700;
    line-height: 1.4;
}

.share-zalo-title span {
    color: #ffffff;
}

.share-zalo-list {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
}

.share-zalo-list li {
    line-height: 1.8;
    margin-bottom: 12px;
    padding-left: 24px;
    position: relative;
}

.share-zalo-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #ffffff;
    font-weight: bold;
    font-size: 20px;
}

.share-zalo-button {
    margin-top: 32px;
}

.btn-share-more {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 1);
    color: #ffffff;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-share-more:hover {
    background-color: rgba(0, 0, 0, 0.85);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-share-more svg {
    flex-shrink: 0;
    margin-right: 8px;
    width: 16px;
    height: 16px;
}

.share-zalo-image-wrapper {
    width: 100%;
    max-width: 650px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 12px;
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.75);
    background: radial-gradient(circle at top left, rgba(148, 163, 184, 0.18), rgba(15, 23, 42, 0.75));
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(16px);
}

.share-zalo-img {
    width: 100%;
    height: auto;
    max-height: 290px;
    border-radius: 16px;
    display: block;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
    background-color: transparent;
    object-fit: contain;
}

.features-image {
    width: 100%;
    height: auto;
    border: 0.5px solid rgba(116, 116, 116, 1);
    border-radius: 9px;
    display: block;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    max-width: 81%;
}

@keyframes fadeInDown {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.features-image-wrapper.tatsu-animate.fadeInDown {
    animation: fadeInDown 0.8s ease-out forwards;
}

/* Responsive */
@media (max-width: 1024px) {
    .partners-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
        padding: 0 5%;
    }
}

@media (max-width: 1200px) {
    .nav {
        gap: 20px;
    }
    
    .nav-link {
        font-size: 14px;
    }
    
    .hero-title {
        font-size: 55px;
        line-height: 1.2;
    }
    
    .hero-line-1 {
        display: inline;
    }
    
    .hero-line-2 {
        display: inline;
    }
    
    .hero-image-stack {
        max-width: 500px;
        height: 520px;
    }

    .hero-image-item {
        width: 84%;
        max-width: 430px;
    }

    .hero-image-back {
        transform: rotate(-4deg) translateZ(0);
        width: 86%;
        top: 18px;
    }

    .hero-image-front {
        transform: rotate(3deg) translateZ(0);
        width: 76%;
        top: 142px;
        left: 8px;
    }
}

@media (max-width: 1100px) {
    .hero-title {
        font-size: 48px;
        line-height: 1.25;
    }
    
    .hero-line-1 {
        display: inline;
    }
    
    .hero-line-2 {
        display: inline;
    }
    
    .hero-image-stack {
        max-width: 450px;
        height: 470px;
    }

    .hero-image-item {
        width: 84%;
        max-width: 390px;
    }

    .hero-image-back {
        transform: rotate(-3deg) translateZ(0);
        width: 86%;
        top: 14px;
    }

    .hero-image-front {
        transform: rotate(2deg) translateZ(0);
        width: 76%;
        top: 124px;
        left: 6px;
    }
}

@media (max-width: 968px) {
    .header {
        padding: 15px 0;
        min-height: 60px;
    }
    
    .header .container {
        justify-content: space-between;
        position: relative;
    }
    
    .logo {
        flex: 0 0 auto;
        order: 1;
        position: relative;
        z-index: 1001;
    }
    
    .nav {
        display: none;
    }
    
    .hamburger-menu {
        display: flex;
        flex: 0 0 auto;
        order: 2;
        margin-left: auto;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .mobile-menu-overlay {
        display: block;
    }
    
    .hero {
        padding-top: 100px;
        min-height: calc(100vh - 60px);
    }
    
    .hero-wrapper {
        padding-top: 20px;
    }
    
    .hero-wrapper {
        flex-direction: column;
        gap: 40px;
        align-items: stretch;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-title {
        font-size: 48px;
        text-align: left;
        line-height: 1.3;
    }
    
    .hero-line-1 {
        display: inline;
    }
    
    .hero-line-2 {
        display: inline;
    }
    
    .hero-title .divider {
        white-space: nowrap;
    }
    
    .hero-image-stack {
        max-width: 100%;
        height: 420px;
    }
    
    .hero-image-item {
        width: 84%;
        max-width: 360px;
    }
    
    .hero-image-back {
        transform: rotate(-3deg) translateZ(0);
        width: 86%;
        top: 14px;
    }
    
    .hero-image-front {
        transform: rotate(2deg) translateZ(0);
        width: 78%;
        top: 118px;
        left: 6px;
    }
    
    .hero-features {
        text-align: left;
    }
    
    .hero-image {
        order: 2;
        justify-content: center;
        width: 100%;
        flex: 0 0 auto;
        min-height: 360px;
    }
    
    .hero-image-stack {
        margin: 0 auto;
    }
}

/* Responsive Pricing Cards */
@media (max-width: 968px) {
    .pricing-cards {
        grid-template-columns: 1fr;
        gap: 24px;
        max-width: 500px;
    }
    
    .pricing-title {
        font-size: 28px;
    }
    
    .pricing-subtitle {
        font-size: 14px;
    }
    
    .faq-section {
        margin-top: 40px;
        padding: 24px 20px;
    }
    
    .faq-title {
        font-size: 24px;
        margin-bottom: 24px;
    }
    
    .faq-question {
        padding: 16px;
    }
    
    .faq-question-text {
        font-size: 15px;
    }
    
    .faq-answer-content {
        padding: 0 16px 16px 16px;
        font-size: 14px;
    }
    
    .security-section {
        margin-top: 40px;
        padding: 32px 24px;
    }
    
    .security-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .security-title {
        font-size: 26px;
        margin-bottom: 16px;
    }
    
    .security-description {
        font-size: 15px;
        margin-bottom: 24px;
    }
    
    .security-features {
        gap: 16px;
        margin-bottom: 24px;
    }
    
    .security-feature-item {
        min-width: 120px;
        padding: 20px 16px;
    }
    
    .security-feature-icon {
        width: 40px;
        height: 40px;
    }
    
    .security-feature-icon svg {
        width: 28px;
        height: 28px;
    }
    
    .security-feature-label {
        font-size: 13px;
    }
    
    .security-note {
        font-size: 13px;
    }
    
    .security-visual {
        max-width: 100%;
    }
    
    .security-visual-card {
        padding: 36px 24px;
    }
    
    .security-visual-icon i.fa-fingerprint {
        font-size: 4rem !important;
    }
    
    .security-visual-title {
        font-size: 18px;
    }
    
    .security-visual-text {
        font-size: 13px;
    }
    
    .upgrade-selection-container {
        padding: 24px 16px;
    }
    
    .upgrade-selection-title {
        font-size: 24px;
        margin-bottom: 30px;
    }
    
    .progress-steps {
        gap: 20px;
        margin-bottom: 40px;
    }
    
    .progress-steps::before {
        left: 10%;
        right: 10%;
    }
    
    .step-number {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
    
    .step-label {
        font-size: 12px;
    }
    
    .method-options {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .method-option {
        padding: 20px;
    }
    
    .method-title {
        font-size: 16px;
    }
    
    .method-description {
        font-size: 13px;
    }
    
    .zax-id-input {
        padding: 14px 16px;
        font-size: 14px;
    }
    
    .quantity-control {
        gap: 16px;
    }
    
    .quantity-btn {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }
    
    .quantity-number {
        font-size: 28px;
    }
    
    .duration-activation-btn {
        padding: 10px 16px;
        font-size: 13px;
    }
    
    .duration-options {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .duration-option {
        padding: 16px;
    }
    
    .duration-label {
        font-size: 14px;
    }
    
    .duration-price {
        font-size: 16px;
    }
    
    .order-summary {
        padding: 20px;
    }
    
    .summary-item {
        padding: 10px 0;
    }
    
    .summary-label,
    .summary-value {
        font-size: 14px;
    }
    
    .summary-total .summary-label,
    .summary-total .summary-value {
        font-size: 16px;
    }
    
    .btn-continue-payment {
        padding: 14px 20px;
        font-size: 15px;
    }
    
    .payment-container {
        padding: 24px 16px;
    }
    
    .payment-order-box {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .payment-order-price {
        font-size: 20px;
    }
    
    .payment-method-selection {
        flex-direction: column;
    }
    
    .payment-steps {
        flex-direction: column;
        gap: 16px;
    }
    
    .payment-main-content {
        grid-template-columns: 1fr;
    }
    
    .payment-qr-code {
        width: 200px;
        height: 200px;
    }
    
    .payment-actions {
        flex-direction: column;
    }
}

@media (max-width: 640px) {
    .pricing-container {
        padding: 20px 16px;
    }
    
    .pricing-header {
        margin-bottom: 30px;
    }
    
    .pricing-title {
        font-size: 24px;
        margin-bottom: 12px;
    }
    
    .pricing-subtitle {
        font-size: 13px;
    }
    
    .pricing-card {
        padding: 24px;
    }
    
    .card-header-premium {
        margin: -24px -24px 16px -24px;
        padding: 10px 24px;
    }
    
    .card-title {
        font-size: 28px;
    }
    
    .price-amount {
        font-size: 32px;
    }
    
    .price-period {
        font-size: 16px;
    }
    
    .account-selector {
        padding: 12px;
    }
    
    .account-buttons {
        gap: 6px;
    }
    
    .account-btn {
        padding: 6px 12px;
        font-size: 13px;
        min-width: 45px;
    }
    
    .feature-item {
        font-size: 13px;
        margin-bottom: 10px;
    }
    
    .card-button {
        padding: 12px 20px;
        font-size: 15px;
    }
    
    .hero-wrapper {
        align-items: stretch;
    }

    .hero-image {
        width: 100%;
        flex: 0 0 auto;
        min-height: 320px;
    }

    .hero-image-stack {
        height: 360px;
        width: 100%;
        max-width: 360px;
        margin: 0 auto;
    }

    .hero-image-item {
        max-width: 100%;
    }

    .hero-image-back {
        display: block;
        width: 88%;
        top: 8px;
        right: 0;
        left: auto;
        transform: rotate(-3deg) translateZ(0);
        opacity: 1;
    }

    .hero-image-front {
        position: absolute;
        width: 78%;
        top: 116px;
        left: 8px;
        right: auto;
        transform: rotate(2deg) translateZ(0);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    }

    .header {
        padding: 12px 0;
        min-height: 56px;
    }
    
    .header .container {
        justify-content: space-between;
    }
    
    .logo {
        font-size: 20px;
        flex: 0 0 auto;
        order: 1;
    }
    
    .logo-img {
        width: 20px;
        height: 20px;
    }
    
    .hamburger-menu {
        flex: 0 0 auto;
        order: 2;
        margin-left: auto;
    }
    
    .container {
        padding: 0 20px;
    }
    
    .hero {
        padding-top: 100px;
        min-height: calc(100vh - 56px);
    }
    
    .hero-wrapper {
        padding: 20px 20px 0 20px;
    }
    
    .hero-title {
        font-size: 36px;
        text-align: left;
        line-height: 1.35;
    }
    
    .hero-line-1 {
        display: inline;
    }
    
    .hero-line-2 {
        display: inline;
    }
    
    .hero-keep-together {
        white-space: nowrap;
    }
    
    .hero-title .divider {
        white-space: nowrap;
    }
    
    .hero-feature-item {
        font-size: 14px;
    }
    
    .hero-download-buttons {
        flex-direction: column;
    }
    
    .btn-download {
        width: 100%;
        justify-content: center;
    }
    
    .header-right {
        gap: 12px;
    }
    
    .phone-number {
        display: none;
    }
    
    .btn-contact {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .hero-wave {
        height: 150px;
    }
    
    .section-white {
        padding: 100px 0 60px;
    }
    
    .section-white h2 {
        font-size: 32px;
    }
    
    .section-white p {
        font-size: 16px;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
        padding: 0 5%;
    }
    
    .section-white-header {
        margin-bottom: 40px;
    }

    .features-highlight-heading {
        margin: 36px 0 14px;
        gap: 14px;
    }

    .special-heading-inner-wrap .tatsu-title {
        font-size: 18px;
        letter-spacing: 1.4px;
        padding: 0 16px;
    }

    .share-zalo-section {
        padding: 53px 0 0;
    }

    .share-zalo-row {
        flex-direction: column;
        gap: 30px;
    }

    .share-zalo-image {
        width: 100%;
        order: 1;
    }

    .share-zalo-content {
        width: 100%;
        order: 2;
    }

    .share-zalo-inner {
        padding: 30px 20px;
    }

    .share-zalo-title {
        font-size: 24px;
        margin-bottom: 20px;
    }

    .share-zalo-list {
        margin-bottom: 24px;
    }

    .share-zalo-list li {
        font-size: 15px;
        margin-bottom: 10px;
    }

    .features-content-section {
        padding: 53px 0 27px;
    }

    .features-content-row {
        flex-direction: column;
        gap: 30px;
    }

    .share-zalo-section {
        padding: 53px 0 0;
    }

    .share-zalo-row {
        flex-direction: column;
        gap: 30px;
    }

    .share-zalo-image {
        width: 100%;
        order: 1;
    }

    .share-zalo-content {
        width: 100%;
        order: 2;
    }

    .share-zalo-inner {
        padding: 30px 20px;
    }

    .share-zalo-title {
        font-size: 24px;
        margin-bottom: 20px;
    }

    .share-zalo-list {
        margin-bottom: 24px;
    }

    .share-zalo-list li {
        font-size: 15px;
        margin-bottom: 10px;
    }

    .features-content-text {
        width: 100%;
        order: 1;
    }

    .features-content-image {
        width: 100%;
        order: 2;
    }

    .features-image-wrapper {
        padding-top: 0;
        max-width: 100%;
    }

    .features-image {
        max-width: 100% !important;
    }

    .features-content-title {
        font-size: 24px;
        margin-bottom: 20px;
    }

    .features-content-list {
        margin-bottom: 24px;
    }

    .features-content-list li {
        font-size: 15px;
        margin-bottom: 10px;
    }

    .btn-features-more {
        padding: 12px 24px;
        font-size: 15px;
    }

    .share-zalo-section {
        padding: 40px 0 0;
    }

    .share-zalo-row {
        gap: 24px;
    }

    .share-zalo-inner {
        padding: 24px 16px;
    }

    .share-zalo-title {
        font-size: 20px;
        margin-bottom: 18px;
    }

    .share-zalo-list li {
        font-size: 14px;
        margin-bottom: 8px;
        padding-left: 20px;
    }
}

@media (max-width: 480px) {
    .hero-image-stack {
        height: 320px;
    }

    .hero-image-back {
        width: 90%;
        top: 8px;
        right: 0;
        transform: rotate(-2deg) translateZ(0);
    }

    .hero-image-front {
        width: 80%;
        top: 102px;
        left: 6px;
        transform: rotate(1.5deg) translateZ(0);
    }

    .header {
        padding: 10px 0;
        min-height: 52px;
    }
    
    .header .container {
        justify-content: space-between;
    }
    
    .logo {
        font-size: 18px;
        flex: 0 0 auto;
        order: 1;
    }
    
    .logo-img {
        width: 18px;
        height: 18px;
    }
    
    .hamburger-menu {
        width: 26px;
        height: 20px;
        flex: 0 0 auto;
        order: 2;
        margin-left: auto;
    }
    
    .hamburger-line {
        height: 2.5px;
    }
    
    .hero {
        padding-top: 100px;
        min-height: calc(100vh - 52px);
    }
    
    .hero-wrapper {
        padding-top: 20px;
    }
    
    .hero-wave {
        height: 150px;
    }
    
    .section-white {
        padding: 100px 0 40px;
    }
    
    .section-white h2 {
        font-size: 28px;
    }
    
    .section-white p {
        font-size: 14px;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        padding: 0;
    }
    
    .partner-item {
        padding: 15px;
    }
    
    .section-white-header {
        margin-bottom: 30px;
    }

    .features-highlight {
        padding-top: 10px;
    }

    .features-highlight-heading {
        margin: 28px 0 10px;
        gap: 10px;
    }

    .special-heading-inner-wrap .tatsu-title {
        font-size: 16px;
        letter-spacing: 1.2px;
        padding: 0 12px;
    }

    .features-content-section {
        padding: 40px 0 20px;
    }

    .features-content-row {
        gap: 24px;
    }

    .features-content-title {
        font-size: 20px;
        margin-bottom: 18px;
    }

    .features-content-list li {
        font-size: 14px;
        margin-bottom: 8px;
        padding-left: 20px;
    }

    .btn-features-more {
        padding: 10px 20px;
        font-size: 14px;
        width: 100%;
        justify-content: center;
    }
}

/* Customer Satisfaction Stats */
.satisfaction-stats {
    background: rgba(10, 14, 39, 0.3);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 12px;
    padding: 24px;
    margin-top: 80px;
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
    z-index: 2;
}

.satisfaction-stats:hover {
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.1);
}

.satisfaction-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.satisfaction-pulse {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

.satisfaction-chart-wrapper {
    height: 350px;
    max-width: 448px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.satisfaction-chart {
    display: block;
    max-width: 100%;
    height: auto;
}

.satisfaction-footer {
    margin-top: 24px;
    text-align: center;
}

.satisfaction-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
    padding: 0 16px;
    line-height: 1.6;
}

.satisfaction-percentage {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 24px;
    margin-right: 4px;
}

/* Responsive Satisfaction Stats */
@media (max-width: 768px) {
    .satisfaction-stats {
        padding: 20px;
        margin-top: 60px;
    }
    
    .satisfaction-title {
        font-size: 16px;
        margin-bottom: 20px;
    }
    
    .satisfaction-chart-wrapper {
        height: 300px;
    }
    
    .satisfaction-percentage {
        font-size: 20px;
    }
    
    .satisfaction-text {
        font-size: 12px;
    }
}

/* Testimonials Wrapper - Inside features-content-section */
.testimonials-wrapper {
    margin-top: 80px;
    padding-top: 60px;
    position: relative;
    z-index: 2;
}

.testimonials-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

.testimonials-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: center;
    gap: 0.25em;
    color: var(--text-white);
    font-family: 'Montserrat', sans-serif;
    white-space: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: 100%;
}

.testimonials-title > div {
    display: flex;
    flex-wrap: nowrap;
    white-space: nowrap;
    align-items: center;
}

.testimonials-title-text {
    color: var(--text-white);
    white-space: nowrap;
    margin-right: 0.25em;
}

.testimonials-title-brand {
    color: var(--primary-color);
    white-space: nowrap;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.testimonial-card {
    background: rgba(10, 14, 39, 0.8);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
    border-color: rgba(0, 212, 255, 0.5);
}

.testimonial-stars {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
}

.star-icon {
    width: 20px;
    height: 20px;
    color: var(--primary-color);
    fill: var(--primary-color);
}

.testimonial-text {
    font-size: 15px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), #6366f1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.avatar-initials {
    color: white;
    font-weight: 700;
    font-size: 18px;
}

.testimonial-info {
    flex: 1;
}

.testimonial-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 4px;
}

.testimonial-role {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
}

/* Fade-in-up animation */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-up.already-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Testimonials */
@media (max-width: 768px) {
    .testimonials-wrapper {
        margin-top: 40px;
        padding-top: 40px;
    }
    
    .testimonials-header {
        margin-bottom: 40px;
    }
    
    .testimonials-title {
        font-size: 24px;
        white-space: nowrap;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding: 0 20px;
    }
    
    .testimonials-title .text-2xl {
        font-size: 1.5rem !important;
    }
    
    .testimonials-title .text-primary {
        color: var(--primary-color) !important;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 0 20px;
    }
    
    .testimonial-card {
        padding: 24px;
    }
    
    .testimonial-text {
        font-size: 14px;
    }
    
    .testimonial-avatar {
        width: 40px;
        height: 40px;
    }
    
    .avatar-initials {
        font-size: 16px;
    }
    
    .testimonial-name {
        font-size: 15px;
    }
    
    .testimonial-role {
        font-size: 12px;
    }
}

/* Satisfaction Modal */
.satisfaction-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.satisfaction-modal.active {
    opacity: 1;
    visibility: visible;
}

.satisfaction-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.satisfaction-modal-content {
    position: relative;
    background: rgba(10, 14, 39, 0.95);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 16px;
    padding: 32px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.2);
    transform: scale(0.9);
    transition: transform 0.3s ease;
    z-index: 10001;
}

.satisfaction-modal.active .satisfaction-modal-content {
    transform: scale(1);
}

.satisfaction-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-size: 32px;
    line-height: 1;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
    z-index: 10002;
}

.satisfaction-modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--primary-color);
    transform: rotate(90deg);
}

.satisfaction-modal-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 24px;
    text-align: center;
}

.satisfaction-modal-chart-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.satisfaction-detail-chart {
    display: block;
    max-width: 100%;
    height: auto;
}

/* Responsive Modal */
@media (max-width: 768px) {
    .satisfaction-modal-content {
        padding: 24px;
        width: 95%;
    }
    
    .satisfaction-modal-title {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .satisfaction-modal-close {
        top: 12px;
        right: 12px;
        font-size: 28px;
        width: 36px;
        height: 36px;
    }
}

/* CTA Wrapper - Inside features-content-section */
.cta-wrapper {
    margin-top: 80px;
    padding-top: 60px;
    position: relative;
    z-index: 2;
}

.cta-content {
    position: relative;
    z-index: 2;
}

.cta-text-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.cta-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0.25em;
    color: var(--text-white);
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 24px;
}

.cta-title-line {
    display: inline-block;
    white-space: nowrap;
}

.cta-title-brand {
    color: rgba(255, 255, 255, 0.95);
}

.cta-description {
    font-size: 18px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.cta-feature-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.3s ease;
}

.cta-feature-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
}

.cta-feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
}

.cta-feature-icon svg {
    width: 24px;
    height: 24px;
}

.cta-feature-content {
    flex: 1;
}

.cta-feature-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 8px;
}

.cta-feature-text {
    font-size: 13px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.85);
}

/* Responsive CTA Wrapper */
@media (max-width: 768px) {
    .cta-wrapper {
        margin-top: 60px;
        padding-top: 40px;
    }
    
    .cta-title {
        font-size: 32px;
        margin-bottom: 20px;
    }
    
    .cta-description {
        font-size: 16px;
        margin-bottom: 32px;
    }
    
    .cta-features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-bottom: 32px;
    }
    
    .cta-feature-card {
        padding: 16px;
    }
    
    .cta-feature-icon {
        width: 40px;
        height: 40px;
    }
    
    .cta-feature-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .cta-feature-title {
        font-size: 14px;
    }
    
    .cta-feature-text {
        font-size: 12px;
    }
}

/* Posts Section - Bài viết hay */
.posts-wrapper {
    margin-top: 80px;
    position: relative;
    z-index: 2;
}

.posts-header {
    text-align: center;
    margin-bottom: 50px;
}

.posts-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-white);
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    margin: 17px 0 14px 0;
    text-transform: none;
}

.posts-divider {
    margin: 25px 0 10px 0;
    display: flex;
    justify-content: center;
}

.posts-divider-img {
    filter: brightness(0) saturate(100%) invert(40%) sepia(100%) saturate(2000%) hue-rotate(190deg) brightness(0.9);
}

.posts-description {
    font-size: 16px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    max-width: 36%;
    margin: 21px auto 0;
    padding: 0 0 40px 0;
}

.posts-slider-wrapper {
    position: relative;
    width: 100%;
    overflow: hidden;
    margin: 0;
    padding: 0;
}

.posts-slider {
    display: flex;
    gap: 40px;
    padding: 0;
    width: max-content;
    animation: scroll-left 30s linear infinite;
    will-change: transform;
}

@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-50% - 20px));
    }
}

/* Calculate card width based on viewport/container, not slider width
   This ensures exactly 3 cards are visible
   Container padding: 40px each side = 80px total
   For 3 cards: need 2 gaps of 40px = 80px total gaps
   Card width = (available_width - 80px_gaps) / 3
*/
.posts-slider .post-card {
    flex: 0 0 calc((100vw - 160px) / 3);
    min-width: calc((100vw - 160px) / 3);
    max-width: calc((100vw - 160px) / 3);
    width: calc((100vw - 160px) / 3);
    pointer-events: auto;
    box-sizing: border-box;
    flex-shrink: 0;
}

/* On larger screens, constrain to container max-width (1400px) */
@media (min-width: 1480px) {
    .posts-slider .post-card {
        flex: 0 0 calc((1320px - 80px) / 3);
        min-width: calc((1320px - 80px) / 3);
        max-width: calc((1320px - 80px) / 3);
        width: calc((1320px - 80px) / 3);
    }
}

/* Đảm bảo wrapper chỉ hiển thị 3 cards */
.posts-slider-wrapper::before,
.posts-slider-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 0;
    z-index: 1;
    pointer-events: none;
}


.posts-slider:hover {
    animation-play-state: paused;
}

.posts-slider::-webkit-scrollbar {
    display: none;
}

.post-card {
    scroll-snap-align: start;
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #e0e0e0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
    max-height: 470px;
}

.post-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    border-color: #b0b0b0;
}

.post-thumb {
    position: relative;
    width: 100%;
    padding-bottom: 80%;
    overflow: hidden;
    background: #f5f5f5;
}

.post-thumb a {
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

.post-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.post-card:hover .post-image {
    transform: scale(1.05);
}

.post-details {
    padding: 12px 15px;
    background: #ffffff;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.post-category {
    margin-bottom: 10px;
    text-align: center;
    width: 100%;
}

.category-badge {
    display: inline-block;
    padding: 5px 12px;
    background: #2293D7;
    color: #ffffff;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.post-title {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.3;
    color: #333;
    flex: 1;
    text-align: center;
    width: 100%;
}

.post-title a {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.post-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.post-title a:hover {
    color: #2293D7;
}


.posts-view-more {
    text-align: center;
    margin-top: 65px;
}

.posts-view-more-btn {
    display: inline-block;
    padding: 16px 40px;
    background-color: #2293D7;
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.posts-view-more-btn:hover {
    background-color: #1a7bb8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(34, 147, 215, 0.4);
}

/* Responsive Posts Section */
@media (max-width: 1024px) {
    .posts-description {
        max-width: 95%;
    }
    
    .posts-slider .post-card {
        flex: 0 0 calc((100vw - 80px - 40px) / 2);
        min-width: calc((100vw - 80px - 40px) / 2);
        max-width: calc((100vw - 80px - 40px) / 2);
        width: calc((100vw - 80px - 40px) / 2);
    }
}

@media (max-width: 767px) {
    .posts-wrapper {
        margin-top: 60px;
    }
    
    .posts-title {
        font-size: 28px;
        margin: 17px 0 14px 0;
    }
    
    .posts-description {
        max-width: 100%;
        font-size: 14px;
        padding: 0 0 30px 0;
    }
    
    .posts-slider .post-card {
        flex: 0 0 calc(100vw - 80px);
        min-width: calc(100vw - 80px);
        max-width: calc(100vw - 80px);
        width: calc(100vw - 80px);
    }
}

/* Footer Styles */
.site-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 0;
    margin-top: 80px;
    background: transparent;
}

.footer-content {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.footer-copyright {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 24px;
    font-size: 12px;
}

.footer-link {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: var(--primary-color);
}

/* Footer Responsive */
@media (min-width: 640px) {
    .footer-content {
        flex-direction: row;
    }
}


/* Features Page Styles - Tính năng ZiG */
.features-posts-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 40px;
}

.features-posts-loop {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.feature-post-item {
    width: 100%;
}

.feature-post-inner {
    background: #ffffff;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-post-inner:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.feature-post-thumb {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 5px 5px 0 0;
}

.feature-post-thumb-placeholder {
    padding-bottom: 60.345%;
}

.feature-post-thumb-inner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
}

.feature-post-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.feature-post-inner:hover .feature-post-image {
    transform: scale(1.05);
}

.feature-post-details {
    background: #ffffff;
    padding: 20px 25px;
}

.feature-post-details-inner {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.feature-post-title-meta {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-post-primary-meta {
    margin-bottom: 0;
}

.feature-post-category {
    display: inline-block;
}

.feature-category-badge {
    display: inline-block;
    padding: 6px 14px;
    background: #2293D7;
    color: #ffffff;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: background 0.3s ease;
}

.feature-category-badge:hover {
    background: #1a7bb8;
}

.feature-post-title {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    line-height: 1.3;
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.feature-post-title a {
    color: #333333;
    text-decoration: none;
    transition: color 0.3s ease;
}

.feature-post-title a:hover {
    color: #2293D7;
}

.feature-post-content {
    margin-top: 10px;
}

.feature-read-more {
    display: inline-block;
    color: #2293D7;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    border-bottom: 2px solid #2293D7;
    padding-bottom: 2px;
    transition: color 0.3s ease, border-color 0.3s ease;
}

.feature-read-more:hover {
    color: #1a7bb8;
    border-color: #1a7bb8;
}

/* Features Page Responsive */
@media (max-width: 1024px) {
    .features-posts-wrapper {
        padding: 40px 20px;
    }
    
    .feature-post-title {
        font-size: 20px;
    }
}

@media (max-width: 767px) {
    .features-posts-wrapper {
        padding: 30px 15px;
    }
    
    .features-posts-loop {
        gap: 30px;
    }
    
    .feature-post-details {
        padding: 15px 20px;
    }
    
    .feature-post-title {
        font-size: 18px;
    }
    
    .feature-post-thumb-placeholder {
        padding-bottom: 56.25%;
    }
}

/* Features Page Layout - 2 Columns */
.features-posts-row {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.features-posts-main {
    flex: 1;
    min-width: 0;
}

.features-sidebar {
    width: 350px;
    flex-shrink: 0;
}

.features-sidebar-inner {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Features Sidebar Widgets */
.features-widget {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 20px;
    backdrop-filter: blur(10px);
}

.features-widget-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-white);
    margin: 0 0 15px 0;
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Widget Image */
.features-widget-image-figure {
    margin: 0;
    padding: 0;
}

.features-widget-image-figure a {
    display: block;
    width: 100%;
}

.features-widget-image-img {
    width: 100%;
    height: auto;
    border-radius: 5px;
    display: block;
}

/* Widget Search */
.features-search-form {
    position: relative;
}

.features-search-field {
    position: relative;
}

.features-search-input {
    width: 100%;
    padding: 12px 40px 12px 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-white);
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
}

.features-search-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.features-search-input:focus {
    border-color: #2293D7;
    background: rgba(255, 255, 255, 0.15);
}

.features-search-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 21px;
    height: 21px;
    color: rgba(255, 255, 255, 0.6);
    pointer-events: none;
}

.features-search-icon svg {
    width: 100%;
    height: 100%;
}

.features-search-icon svg g {
    stroke: currentColor;
}

/* Widget Text */
.features-widget-content {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    line-height: 1.6;
}

.features-widget-content p {
    margin: 0;
}

/* Widget Recent Posts */
.features-recent-posts-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.features-recent-posts-list li {
    margin: 0;
}

.features-recent-posts-list li a {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.features-recent-posts-list li a:hover {
    opacity: 0.8;
}

.features-recent-post-thumb {
    width: 75px;
    height: 75px;
    object-fit: cover;
    border-radius: 4px;
    flex-shrink: 0;
}

.features-recent-post-title {
    color: rgba(255, 255, 255, 0.9);
    font-size: 13px;
    line-height: 1.4;
    font-weight: 500;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.features-recent-posts-list li a:hover .features-recent-post-title {
    color: #2293D7;
}

/* Features Page Responsive - Sidebar */
@media (max-width: 1024px) {
    .features-posts-row {
        flex-direction: column;
    }
    
    .features-sidebar {
        width: 100%;
    }
    
    .features-sidebar-inner {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .features-widget-image {
        grid-column: 1 / -1;
    }
}

@media (max-width: 767px) {
    .features-sidebar-inner {
        grid-template-columns: 1fr;
    }
    
    .features-widget {
        padding: 15px;
    }
}