/* ========================================
   RESET & VARIABLES
   ======================================== */

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

:root {
    --container: 1180px;
    --primary-blue: #0052FF;
    --dark-blue: #003399;
    --light-blue: #E3F2FD;
    --white: #FFFFFF;
    --text-dark: #1A1A1A;
    --text-light: #666666;
    --border-light: #E0E0E0;
    --border-dark: #0052FF;
    --success-green: #10B981;
    --warning-yellow: #F59E0B;
    --error-red: #EF4444;
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-base: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: linear-gradient(135deg, #FAFBFF 0%, #F5F7FF 100%);
    background-attachment: fixed;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.container {
    width: min(100% - 32px, var(--container));
    margin-inline: auto;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.image-box,
.blueprint-media,
.preview-card,
.panel-image,
.breakdown-image,
.gallery-item {
    overflow: visible;
    line-height: 0;
}

.image-box img,
.blueprint-media img,
.preview-card img,
.panel-image img,
.breakdown-image img,
.gallery-item img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
    display: inline-block;
    padding: 12px 28px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
    box-shadow: 0 4px 12px rgba(0, 82, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 82, 255, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background: var(--light-blue);
    transform: translateY(-2px);
}

/* ========================================
   NAVIGATION
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 82, 255, 0.1);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    box-shadow: var(--shadow-light);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 16px;
}

.navbar-brand {
    display: flex;
    align-items: center;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    text-decoration: none;
    cursor: pointer;
}

.navbar-logo img {
    width: 32px;
    height: auto;
}

.navbar-menu {
    display: flex;
    gap: 32px;
    flex: 1;
    justify-content: center;
    align-items: center;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-blue);
    border-radius: 1px;
}

.navbar-security-btn {
    padding: 8px 16px;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.navbar-security-btn:hover {
    background: var(--dark-blue);
    transform: translateY(-2px);
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.navbar-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
    padding: 100px 0 60px;
    margin-top: 70px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.hero-text h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin: 16px 0 24px;
    color: var(--text-dark);
}

.hero-tag {
    display: inline-block;
    padding: 6px 12px;
    background: linear-gradient(135deg, var(--light-blue), rgba(224, 242, 254, 0.5));
    color: var(--primary-blue);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-text p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.hero-security-hint {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(239, 68, 68, 0.05);
    border-left: 3px solid var(--error-red);
    border-radius: 4px;
    font-size: 13px;
    color: var(--text-dark);
}

.icon-security {
    font-size: 18px;
}

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blueprint-card {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.blueprint-badge {
    position: absolute;
    top: -30px;
    left: 0;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary-blue);
    text-transform: uppercase;
    z-index: 5;
}

.blueprint-media {
    position: relative;
    background: white;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 10px 30px rgba(0, 82, 255, 0.1);
    overflow: hidden;
}

.blueprint-media img {
    width: 100%;
    height: auto;
    display: block;
}

.blueprint-corners {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 3;
}

.corner {
    position: absolute;
    width: 30px;
    height: 30px;
    border: 2px solid var(--border-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: var(--primary-blue);
    background: white;
}

.corner-tl {
    top: -2px;
    left: -2px;
    border-right: none;
    border-bottom: none;
    border-radius: 8px 0 0 0;
}

.corner-tr {
    top: -2px;
    right: -2px;
    border-left: none;
    border-bottom: none;
    border-radius: 0 8px 0 0;
}

.corner-bl {
    bottom: -2px;
    left: -2px;
    border-right: none;
    border-top: none;
    border-radius: 0 0 0 8px;
}

.corner-br {
    bottom: -2px;
    right: -2px;
    border-left: none;
    border-top: none;
    border-radius: 0 0 8px 0;
}

.blueprint-dots {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 8px;
    z-index: 4;
}

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

.dot-2 {
    animation-delay: 0.3s;
}

.dot-3 {
    animation-delay: 0.6s;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.8);
    }
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.metric-item {
    background: white;
    padding: 24px;
    border: 1px solid var(--border-light);
    border-radius: 8px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
}

.metric-item:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 8px 20px rgba(0, 82, 255, 0.1);
    transform: translateY(-4px);
}

.metric-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 8px;
}

.metric-label {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
}

/* ========================================
   BLUEPRINT INDEX
   ======================================== */

.blueprint-index {
    padding: 80px 0;
    background: white;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.blueprint-index h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
    color: var(--text-dark);
}

.index-wrapper {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
    align-items: flex-start;
}

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

.index-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: white;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    border-left: 4px solid transparent;
}

.index-item:hover {
    border-color: var(--primary-blue);
    background: var(--light-blue);
}

.index-item.active {
    border-color: var(--primary-blue);
    background: var(--light-blue);
    border-left-color: var(--primary-blue);
}

.index-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--primary-blue);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 13px;
    flex-shrink: 0;
}

.index-title {
    font-weight: 600;
    color: var(--text-dark);
    display: block;
}

.index-content {
    position: relative;
}

.index-panel {
    opacity: 0;
    pointer-events: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.index-panel.active {
    opacity: 1;
    pointer-events: auto;
    position: relative;
    transform: translateY(0);
}

.index-panel h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.index-panel p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.index-panel ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.index-panel li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-dark);
}

.index-panel li::before {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: var(--success-green);
    color: white;
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

/* ========================================
   ACCOUNT BREAKDOWN
   ======================================== */

.account-breakdown {
    padding: 80px 0;
}

.account-breakdown h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 60px;
    text-align: center;
    color: var(--text-dark);
}

.breakdown-wrapper {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.breakdown-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.breakdown-image {
    width: 100%;
    max-width: 450px;
    background: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: var(--shadow-base);
    border: 1px solid var(--border-light);
}

.breakdown-image img {
    width: 100%;
    height: auto;
}

.breakdown-labels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.breakdown-label {
    padding: 24px;
    background: white;
    border-radius: 8px;
    border: 2px solid var(--border-light);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.breakdown-label::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.breakdown-label:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 8px 20px rgba(0, 82, 255, 0.1);
}

.breakdown-label:hover::before {
    transform: scaleX(1);
}

.label-tag {
    display: inline-block;
    padding: 4px 8px;
    background: var(--light-blue);
    color: var(--primary-blue);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.label-text {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ========================================
   BLUEPRINT SNIPPETS
   ======================================== */

.blueprint-snippets {
    padding: 80px 0;
    background: white;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.blueprint-snippets h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
    color: var(--text-dark);
}

.snippets-scroll {
    position: relative;
    display: flex;
    align-items: center;
    gap: 16px;
}

.scroll-btn {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-blue);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: var(--shadow-base);
    z-index: 10;
}

.scroll-btn:hover {
    background: var(--dark-blue);
    transform: scale(1.1);
}

.scroll-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.snippets-track {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    scroll-behavior: smooth;
    padding: 8px 0;
    scrollbar-width: none;
    flex: 1;
}

.snippets-track::-webkit-scrollbar {
    display: none;
}

.snippet-card {
    flex: 0 0 260px;
    background: white;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.snippet-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.snippet-card:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 12px 30px rgba(0, 82, 255, 0.15);
    transform: translateY(-8px);
}

.snippet-card:hover::before {
    transform: scaleX(1);
}

.snippet-number {
    display: inline-block;
    width: 32px;
    height: 32px;
    background: var(--light-blue);
    color: var(--primary-blue);
    border-radius: 50%;
    font-weight: 700;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.snippet-icon {
    font-size: 36px;
    margin-bottom: 12px;
    display: block;
}

.snippet-card h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.snippet-card p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 16px;
}

.snippet-link {
    display: inline-block;
    font-size: 12px;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.snippet-link:hover {
    gap: 4px;
}

/* ========================================
   SECURITY PANEL
   ======================================== */

.security-panel {
    padding: 80px 0;
}

.security-panel h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
    color: var(--text-dark);
}

.security-wrapper {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
    align-items: flex-start;
}

.security-checklist {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-light);
}

.security-checklist h3 {
    padding: 20px;
    background: var(--light-blue);
    color: var(--primary-blue);
    font-size: 16px;
    font-weight: 700;
    border-bottom: 2px solid var(--border-dark);
}

.checklist-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: white;
    border: none;
    border-bottom: 1px solid var(--border-light);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    width: 100%;
}

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

.checklist-item:hover {
    background: var(--light-blue);
}

.checklist-item.active {
    background: var(--light-blue);
    border-left: 4px solid var(--primary-blue);
    padding-left: 16px;
}

.check-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--primary-blue);
    color: white;
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

.check-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dark);
    display: block;
}

.security-details {
    position: relative;
}

.security-panel-content {
    opacity: 0;
    pointer-events: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.security-panel-content.active {
    opacity: 1;
    pointer-events: auto;
    position: relative;
    transform: translateY(0);
}

.security-panel-content h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.security-panel-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.panel-image {
    margin: 24px 0;
    background: white;
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--border-light);
}

.panel-image img {
    width: 100%;
    height: auto;
}

.risk-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    margin-top: 16px;
}

.risk-critical {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-red);
}

.risk-high {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-yellow);
}

.risk-medium {
    background: rgba(3, 102, 214, 0.1);
    color: var(--primary-blue);
}

/* ========================================
   INTERFACE GALLERY
   ======================================== */

.interface-gallery {
    padding: 80px 0;
    background: white;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.interface-gallery h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
    color: var(--text-dark);
}

.gallery-wall {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
}

.gallery-item {
    position: relative;
    cursor: pointer;
    overflow: hidden;
    border-radius: 8px;
    background: white;
    border: 2px solid var(--border-light);
    aspect-ratio: auto;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
}

.gallery-item:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 12px 30px rgba(0, 82, 255, 0.15);
    transform: translateY(-4px) scale(1.02);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 12px;
    background: #FAFBFF;
}

.gallery-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    width: 30px;
    height: 30px;
    background: var(--primary-blue);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    z-index: 5;
}

.gallery-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.gallery-modal.active {
    display: flex;
}

.modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    background: white;
    border-radius: 12px;
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.modal-content img {
    max-width: 100%;
    height: auto;
    padding: 24px;
    object-fit: contain;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: white;
    border: none;
    border-radius: 50%;
    font-size: 28px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10;
}

.modal-close:hover {
    transform: rotate(90deg);
    box-shadow: var(--shadow-base);
}

.modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: white;
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10;
}

.modal-prev {
    left: 20px;
}

.modal-next {
    right: 20px;
}

.modal-nav:hover {
    background: var(--primary-blue);
    color: white;
    transform: scale(1.1);
}

/* ========================================
   SCENARIO SECTION
   ======================================== */

.scenario-section {
    padding: 80px 0;
}

.scenario-section h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
    color: var(--text-dark);
}

.scenario-wrapper {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
    align-items: flex-start;
}

.scenario-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.scenario-btn {
    padding: 16px 20px;
    background: white;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    border-left: 4px solid transparent;
}

.scenario-btn:hover {
    border-color: var(--primary-blue);
    background: var(--light-blue);
}

.scenario-btn.active {
    border-color: var(--primary-blue);
    background: var(--light-blue);
    border-left-color: var(--primary-blue);
}

.scenario-content {
    position: relative;
    min-height: 300px;
}

.scenario-panel {
    opacity: 0;
    pointer-events: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.scenario-panel.active {
    opacity: 1;
    pointer-events: auto;
    position: relative;
    transform: translateY(0);
}

.scenario-panel h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.scenario-panel p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.scenario-panel ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.scenario-panel li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    color: var(--text-dark);
    line-height: 1.6;
}

.scenario-panel li::before {
    content: '';
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    background: var(--primary-blue);
    border-radius: 50%;
    margin-top: 7px;
}

/* ========================================
   CONFIRMATION CHECKLIST
   ======================================== */

.confirmation-checklist {
    padding: 80px 0;
    background: white;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.confirmation-checklist h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
    color: var(--text-dark);
}

.checklist-container {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.checklist-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: white;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
}

.checklist-checkbox:hover {
    border-color: var(--primary-blue);
    background: var(--light-blue);
}

.checkbox-input {
    appearance: none;
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-dark);
    border-radius: 4px;
    cursor: pointer;
    flex-shrink: 0;
    margin-top: 2px;
    transition: var(--transition);
}

.checkbox-input:checked {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 100%;
}

.checkbox-label {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 15px;
}

.checkbox-sublabel {
    display: block;
    font-size: 13px;
    color: var(--text-light);
    margin-top: 4px;
}

.checklist-result {
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.05));
    border: 2px solid var(--success-green);
    border-radius: 8px;
    animation: slideUp 0.5s ease;
}

.result-icon {
    font-size: 48px;
    color: var(--success-green);
    margin-bottom: 16px;
    display: block;
}

.result-text {
    color: var(--text-dark);
    font-size: 15px;
    line-height: 1.6;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   FAQ SECTION
   ======================================== */

.faq-section {
    padding: 80px 0;
}

.faq-section h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
    color: var(--text-dark);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: white;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 8px 20px rgba(0, 82, 255, 0.1);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 20px;
    background: white;
    border: none;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--light-blue);
    color: var(--primary-blue);
}

.faq-question::after {
    content: '+';
    font-size: 24px;
    transition: var(--transition);
    flex-shrink: 0;
}

.faq-item[open] .faq-question {
    background: var(--light-blue);
    color: var(--primary-blue);
    border-bottom: 1px solid var(--border-light);
}

.faq-item[open] .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 24px 20px;
    background: white;
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.faq-answer p {
    margin-bottom: 12px;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background: linear-gradient(135deg, #003399, #0052FF);
    color: white;
    padding: 60px 0 0;
    border-top: 2px solid var(--border-dark);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-section p {
    font-size: 13px;
    line-height: 1.8;
    opacity: 0.9;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: white;
    text-decoration: none;
    font-size: 13px;
    transition: var(--transition);
    opacity: 0.9;
}

.footer-section a:hover {
    opacity: 1;
    text-decoration: underline;
}

.footer-bottom {
    background: rgba(0, 0, 0, 0.2);
    padding: 20px;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
    font-size: 13px;
    margin-bottom: 8px;
    opacity: 0.9;
}

.footer-disclaimer {
    font-size: 12px;
    opacity: 0.8;
    line-height: 1.6;
}

/* ========================================
   BACK TO TOP BUTTON
   ======================================== */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    z-index: 999;
    box-shadow: var(--shadow-base);
    transition: var(--transition);
}

.back-to-top.visible {
    display: flex;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
    .navbar-container {
        height: 60px;
        padding: 0 12px;
    }

    .navbar-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: white;
        padding: 20px;
        gap: 12px;
        transform: translateX(-100%);
        transition: var(--transition);
        max-height: calc(100vh - 60px);
        overflow-y: auto;
        z-index: 999;
    }

    .navbar-menu.active {
        transform: translateX(0);
        box-shadow: var(--shadow-base);
    }

    .navbar-toggle {
        display: flex;
    }

    .navbar-security-btn {
        display: none;
    }

    .hero {
        padding: 80px 0 40px;
        margin-top: 60px;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-text h1 {
        font-size: 32px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .index-wrapper {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .index-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }

    .breakdown-wrapper {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .breakdown-labels {
        grid-template-columns: 1fr;
    }

    .security-wrapper {
        grid-template-columns: 1fr;
    }

    .security-checklist {
        border-radius: 8px;
    }

    .scenario-wrapper {
        grid-template-columns: 1fr;
    }

    .scenario-buttons {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .gallery-wall {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

@media (max-width: 480px) {
    :root {
        --container: 100%;
    }

    .hero-text h1 {
        font-size: 24px;
    }

    .blueprint-index h2,
    .account-breakdown h2,
    .blueprint-snippets h2,
    .security-panel h2,
    .interface-gallery h2,
    .scenario-section h2,
    .confirmation-checklist h2,
    .faq-section h2 {
        font-size: 24px;
        margin-bottom: 32px;
    }

    .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .metric-number {
        font-size: 24px;
    }

    .metric-label {
        font-size: 12px;
    }

    .index-list {
        grid-template-columns: 1fr;
    }

    .snippet-card {
        flex: 0 0 calc(100vw - 80px);
    }

    .gallery-wall {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .scenario-buttons {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
        font-size: 20px;
    }
}

/* ========================================
   FADE IN ANIMATION
   ======================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* ========================================
   UTILITY
   ======================================== */

h2 {
    scroll-margin-top: 100px;
}

section {
    scroll-margin-top: 70px;
}