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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --primary-ultra-light: #eef2ff;
    --secondary-color: #0f172a;
    --text-color: #334155;
    --text-light: #64748b;
    --text-lighter: #94a3b8;
    --background: #f8fafc;
    --white: #ffffff;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background);
    color: var(--text-color);
    line-height: 1.7;
    font-size: 16px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--secondary-color);
    line-height: 1.3;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-dark);
}

.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }

/* Header */
.header {
    background: var(--white);
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--secondary-color);
    font-size: 1.35rem;
    font-weight: 600;
}

.logo i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.logo strong {
    color: var(--primary-color);
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav a {
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 0;
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s;
}

.nav a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    padding: 100px 0 80px;
    background: linear-gradient(135deg, var(--white) 0%, var(--primary-ultra-light) 50%, var(--background) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--white);
    border: 1px solid var(--primary-light);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: var(--text-color);
}

.hero-feature i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

/* Intro Section */
.intro-section {
    padding: 100px 0;
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 60px;
    align-items: start;
}

.intro-content h2 {
    font-size: 2.25rem;
    margin-bottom: 24px;
}

.intro-content p {
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.check-list {
    list-style: none;
    margin-top: 24px;
}

.check-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 1.05rem;
}

.check-list li:last-child {
    border-bottom: none;
}

.check-list i {
    color: var(--success-color);
    font-size: 1.1rem;
}

.info-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 32px;
    border-radius: var(--radius-lg);
    color: var(--white);
}

.info-card-icon {
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.info-card-icon i {
    font-size: 1.5rem;
}

.info-card h3 {
    color: var(--white);
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.info-card p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
}

/* Section Headers */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-header h2 {
    font-size: 2.25rem;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* How Section */
.how-section {
    padding: 100px 0;
    background: var(--white);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.step-card {
    background: var(--background);
    padding: 36px;
    border-radius: var(--radius-lg);
    position: relative;
    transition: transform 0.2s, box-shadow 0.2s;
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    position: absolute;
    top: -16px;
    left: 32px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    font-weight: 700;
    box-shadow: var(--shadow);
}

.step-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    margin-top: 16px;
}

.step-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Security Section */
.security-section {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-card {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.feature-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-ultra-light);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon i {
    font-size: 1.4rem;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Use Cases Section */
.use-cases-section {
    padding: 100px 0;
    background: var(--white);
}

.usecases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.usecase-card {
    background: var(--background);
    padding: 36px 28px;
    border-radius: var(--radius);
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.usecase-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.usecase-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.usecase-icon i {
    font-size: 1.75rem;
    color: var(--white);
}

.usecase-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.usecase-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Comparison Section */
.comparison-section {
    padding: 100px 0;
}

.comparison-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.comparison-table {
    width: 100%;
    background: var(--white);
    border-collapse: collapse;
    min-width: 600px;
}

.comparison-table th,
.comparison-table td {
    padding: 20px 24px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--secondary-color);
    color: var(--white);
    font-weight: 600;
    font-size: 0.95rem;
}

.comparison-table th:first-child {
    border-radius: var(--radius) 0 0 0;
}

.comparison-table th:last-child {
    border-radius: 0 var(--radius) 0 0;
}

.comparison-table td {
    font-size: 0.95rem;
}

.comparison-table td i {
    margin-right: 8px;
}

.comparison-table tbody tr:hover {
    background: var(--background);
}

/* FAQ Section */
.faq-section {
    padding: 100px 0;
    background: var(--white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--background);
    border-radius: var(--radius);
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-item summary {
    padding: 24px 28px;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary-color);
    transition: transform 0.3s;
}

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

.faq-item summary h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

.faq-answer {
    padding: 0 28px 24px;
}

.faq-answer p {
    color: var(--text-color);
    line-height: 1.8;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    color: var(--white);
}

.cta-content h2 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 16px;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 32px;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.cta-features span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.cta-features i {
    color: rgba(255, 255, 255, 0.8);
}

/* Footer */
.footer {
    background: var(--secondary-color);
    padding: 80px 0 40px;
    color: var(--white);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 16px;
}

.footer-logo i {
    color: var(--primary-light);
}

.footer-logo strong {
    color: var(--primary-light);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-nav h4,
.footer-topics h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-nav ul,
.footer-topics ul {
    list-style: none;
}

.footer-nav li,
.footer-topics li {
    margin-bottom: 12px;
}

.footer-nav a,
.footer-topics a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    transition: color 0.2s;
}

.footer-nav a:hover,
.footer-topics a:hover {
    color: var(--white);
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.footer-disclaimer {
    font-size: 0.85rem !important;
    color: rgba(255, 255, 255, 0.4) !important;
}

/* Burger Menu */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 200;
}

.burger-menu span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--secondary-color);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

.burger-menu.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.burger-menu.active span:nth-child(2) {
    opacity: 0;
}

.burger-menu.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 768px) {
    .burger-menu {
        display: flex;
    }

    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        z-index: 150;
    }

    .nav.open {
        display: block;
    }

    .nav ul {
        flex-direction: column;
        gap: 0;
        padding: 8px 0;
    }

    .nav li {
        border-bottom: 1px solid var(--border-color);
    }

    .nav li:last-child {
        border-bottom: none;
    }

    .nav a {
        display: block;
        padding: 14px 24px;
    }

    .nav a::after {
        display: none;
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .intro-grid {
        grid-template-columns: 1fr;
    }
    
    .intro-sidebar {
        order: -1;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid,
    .usecases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-brand {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 70px 0 60px;
    }
    
    .hero h1 {
        font-size: 2.25rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 16px;
    }
    
    .section-header h2,
    .intro-content h2 {
        font-size: 1.75rem;
    }
    
    .features-grid,
    .usecases-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
    
    .intro-section,
    .how-section,
    .security-section,
    .use-cases-section,
    .comparison-section,
    .faq-section {
        padding: 70px 0;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.85rem;
    }
    
    .hero-badge {
        font-size: 0.8rem;
        padding: 6px 16px;
    }
    
    .step-card,
    .feature-card,
    .usecase-card {
        padding: 24px;
    }
    
    .cta-features {
        flex-direction: column;
        gap: 12px;
    }
}

/* ==================== */
/* SUBPAGE STYLES */
/* ==================== */

/* Active nav state */
.nav a.active {
    color: var(--primary-color);
}

.nav a.active::after {
    width: 100%;
}

/* Page Hero */
.page-hero {
    padding: 60px 0 50px;
    background: linear-gradient(135deg, var(--white) 0%, var(--primary-ultra-light) 100%);
}

.page-hero h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.page-subtitle {
    font-size: 1.15rem;
    color: var(--text-light);
    max-width: 700px;
}

/* Breadcrumb */
.breadcrumb {
    margin-bottom: 24px;
}

.breadcrumb ol {
    display: flex;
    list-style: none;
    gap: 8px;
    font-size: 0.9rem;
}

.breadcrumb li::after {
    content: '/';
    margin-left: 8px;
    color: var(--text-lighter);
}

.breadcrumb li:last-child::after {
    display: none;
}

.breadcrumb a {
    color: var(--text-light);
}

.breadcrumb span {
    color: var(--primary-color);
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 60px;
    padding: 60px 0;
}

.main-content {
    min-width: 0;
}

/* Content Sections */
.content-section {
    margin-bottom: 48px;
}

.content-section h2 {
    font-size: 1.75rem;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-ultra-light);
}

.content-section h3 {
    font-size: 1.25rem;
    margin: 24px 0 12px;
}

.content-section p {
    margin-bottom: 16px;
}

/* Styled Lists */
.styled-list {
    list-style: none;
    margin: 20px 0;
}

.styled-list li {
    padding: 12px 0;
    padding-left: 28px;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.styled-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* Highlight Box */
.highlight-box {
    display: flex;
    gap: 20px;
    padding: 28px;
    background: var(--primary-ultra-light);
    border-radius: var(--radius);
    margin: 28px 0;
}

.highlight-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-color);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.highlight-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.highlight-content h3 {
    margin: 0 0 8px;
    font-size: 1.1rem;
}

.highlight-content p {
    margin: 0;
    color: var(--text-color);
}

/* Feature Items */
.features-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin: 28px 0;
}

.feature-item {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}

.feature-icon-small {
    width: 48px;
    height: 48px;
    background: var(--primary-ultra-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon-small i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.feature-text h3 {
    margin: 0 0 8px;
    font-size: 1.1rem;
}

.feature-text p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Comparison Cards */
.comparison-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin: 28px 0;
}

.comparison-card {
    padding: 28px;
    border-radius: var(--radius);
}

.comparison-card.negative {
    background: #fef2f2;
    border: 1px solid #fecaca;
}

.comparison-card.positive {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
}

.comparison-card h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.comparison-card ul {
    list-style: none;
}

.comparison-card li {
    padding: 8px 0;
    font-size: 0.95rem;
    color: var(--text-color);
}

/* Info Block */
.info-block {
    padding: 24px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    margin: 20px 0;
}

.info-block.warning {
    background: #fffbeb;
    border-color: #fcd34d;
}

.info-block h3 {
    margin: 0 0 12px;
    font-size: 1.1rem;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-card {
    background: var(--white);
    padding: 24px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.sidebar-card.highlight {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border: none;
    color: var(--white);
}

.sidebar-card.highlight h3 {
    color: var(--white);
}

.sidebar-card.highlight p {
    color: rgba(255,255,255,0.9);
}

.sidebar-card h3 {
    font-size: 1rem;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-card.highlight h3 {
    border-bottom-color: rgba(255,255,255,0.2);
}

.facts-list, .tech-list, .toc-list, .related-links {
    list-style: none;
}

.facts-list li, .tech-list li {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.tech-list li {
    flex-direction: column;
    gap: 4px;
}

.tech-list li span {
    color: var(--text-light);
    font-size: 0.85rem;
}

.toc-list li, .related-links li {
    padding: 8px 0;
}

.toc-list a, .related-links a {
    font-size: 0.95rem;
}

.sidebar-link {
    display: inline-block;
    margin-top: 12px;
    font-weight: 500;
}

/* Page Navigation */
.page-navigation {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
    margin-top: 40px;
}

.prev-page, .next-page {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-weight: 500;
    transition: all 0.2s;
}

.prev-page:hover, .next-page:hover {
    border-color: var(--primary-color);
    background: var(--primary-ultra-light);
}

.next-page {
    margin-left: auto;
}

/* Process Timeline */
.process-timeline {
    margin: 40px 0;
}

.process-step {
    display: flex;
    gap: 24px;
    margin-bottom: 32px;
}

.step-marker {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

.step-line {
    width: 2px;
    flex-grow: 1;
    background: var(--primary-light);
    margin-top: 8px;
}

.step-content {
    flex: 1;
    padding-bottom: 20px;
}

.step-content h3 {
    margin: 0 0 12px;
}

.step-detail {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
    background: var(--background);
    border-radius: var(--radius-sm);
    margin-top: 16px;
    font-size: 0.9rem;
}

.step-detail i {
    color: var(--primary-color);
    margin-top: 2px;
}

.step-detail.highlight {
    background: var(--primary-ultra-light);
}

.step-detail.warning {
    background: #fffbeb;
}

.step-detail.warning i {
    color: var(--warning-color);
}

.step-detail.success {
    background: #f0fdf4;
}

.step-detail.success i {
    color: var(--success-color);
}

.code-example {
    background: var(--secondary-color);
    padding: 20px;
    border-radius: var(--radius-sm);
    margin-top: 16px;
}

.code-example code {
    color: #e2e8f0;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.9rem;
    word-break: break-all;
}

.code-example code strong {
    color: var(--success-color);
}

.code-note {
    color: var(--text-lighter);
    font-size: 0.8rem;
    margin-top: 8px;
    margin-bottom: 0;
}

/* Zero Knowledge Diagram */
.zero-knowledge-diagram {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 32px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    margin: 32px 0;
    flex-wrap: wrap;
}

.zk-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
}

.zk-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-ultra-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.zk-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.zk-icon.sender { background: #dbeafe; }
.zk-icon.sender i { color: #2563eb; }
.zk-icon.recipient { background: #d1fae5; }
.zk-icon.recipient i { color: #059669; }

.zk-item.server .zk-icon {
    background: var(--secondary-color);
}

.zk-item.server .zk-icon i {
    color: var(--white);
}

.zk-text h4 {
    margin: 0;
    font-size: 0.95rem;
}

.zk-text p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-light);
    max-width: 140px;
}

.zk-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: var(--text-lighter);
}

.zk-arrow i {
    font-size: 1.25rem;
}

.zk-arrow span {
    font-size: 0.75rem;
}

/* Security Features Grid */
.security-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 32px 0;
}

.security-feature {
    padding: 24px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}

.sf-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-ultra-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.sf-icon i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.security-feature h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.security-feature p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0;
}

/* Specs Table */
.specs-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.specs-table th,
.specs-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.specs-table th {
    background: var(--background);
    font-weight: 600;
    width: 40%;
}

/* Use Case Detail */
.use-case-detail {
    margin-bottom: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
}

.use-case-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}

.use-case-icon.large {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.use-case-icon.large i {
    font-size: 1.75rem;
    color: var(--white);
}

.use-case-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-ultra-light);
    color: var(--primary-color);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
}

.scenario-box {
    padding: 24px;
    background: var(--primary-ultra-light);
    border-radius: var(--radius);
    margin: 24px 0;
}

.scenario-box.warning {
    background: #fef3c7;
}

.scenario-box h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 1rem;
}

.scenario-box p {
    margin: 0;
}

.best-practices {
    list-style: none;
    margin: 20px 0;
}

.best-practices li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.best-practices i {
    color: var(--success-color);
    margin-top: 3px;
}

.credential-types {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 24px 0;
}

.credential-type {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.9rem;
}

.credential-type i {
    color: var(--primary-color);
}

.business-examples {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 24px 0;
}

.business-example {
    padding: 24px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}

.business-example h4 {
    margin-bottom: 12px;
    font-size: 1rem;
}

.business-example ul {
    list-style: none;
    font-size: 0.9rem;
    color: var(--text-light);
}

.business-example li {
    padding: 6px 0;
}

.personal-examples {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 24px 0;
}

.personal-example {
    padding: 24px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    text-align: center;
}

.personal-example i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.personal-example h4 {
    margin-bottom: 8px;
    font-size: 1.05rem;
}

.personal-example p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0;
}

.compliance-note {
    padding: 24px;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--radius);
    margin: 24px 0;
}

.compliance-note h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.compliance-note i {
    color: var(--success-color);
}

.industry-list {
    list-style: none;
    margin: 20px 0;
}

.industry-list li {
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
}

.warning-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 24px 0;
}

.warning-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: #fef2f2;
    border-radius: var(--radius);
}

.warning-item i {
    color: var(--danger-color);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.warning-item h4 {
    margin: 0 0 4px;
    font-size: 1rem;
}

.warning-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-light);
}

/* FAQ Page Styles */
.faq-category {
    margin-bottom: 48px;
}

.faq-category h2 {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-ultra-light);
}

.faq-category h2 i {
    color: var(--primary-color);
}

.faq-list-page .faq-item {
    margin-bottom: 12px;
}

.faq-list-page .faq-answer {
    padding: 20px 28px 28px;
}

.faq-list-page .faq-answer p {
    margin-bottom: 16px;
}

.faq-list-page .faq-answer ul,
.faq-list-page .faq-answer ol {
    margin: 16px 0;
    padding-left: 24px;
}

.faq-list-page .faq-answer li {
    margin-bottom: 8px;
}

.comparison-mini {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 0.9rem;
}

.comparison-mini th,
.comparison-mini td {
    padding: 10px 12px;
    text-align: left;
    border: 1px solid var(--border-color);
}

.comparison-mini th {
    background: var(--background);
}

/* Responsive for subpages */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .sidebar-card {
        flex: 1;
        min-width: 280px;
    }
    
    .business-examples {
        grid-template-columns: 1fr;
    }
    
    .security-features-grid {
        grid-template-columns: 1fr;
    }
    
    .zero-knowledge-diagram {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .page-hero h1 {
        font-size: 2rem;
    }
    
    .comparison-cards {
        grid-template-columns: 1fr;
    }
    
    .personal-examples {
        grid-template-columns: 1fr;
    }
    
    .highlight-box {
        flex-direction: column;
    }
    
    .page-navigation {
        flex-direction: column;
    }
    
    .next-page {
        margin-left: 0;
    }
}