/* Opacus Protocol - Professional Landing Page Styles */

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

:root {
    --primary: #00D1FF;
    --primary-dark: #00A8CC;
    --secondary: #8A8A8A;
    --success: #16a34a;
    --warning: #ca8a04;
    --danger: #dc2626;
    --bg-primary: #000000;
    --bg-secondary: #0A0A0A;
    --text-primary: #FFFFFF;
    --text-secondary: #D2D2D2;
    --metallic: #8A8A8A;
    --metallic-light: #A1A1A1;
    --accent-cyan: #00D1FF;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 209, 255, 0.1);
    z-index: 1000;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 20px;
    color: var(--text-primary);
}

.logo-text {
    letter-spacing: -0.02em;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--accent-cyan);
}

.nav-cta {
    display: flex;
    gap: 12px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-cyan);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--metallic);
}

.btn-secondary:hover {
    background: rgba(138, 138, 138, 0.1);
    border-color: var(--accent-cyan);
}

.btn-outline {
    background: transparent;
    color: var(--accent-cyan);
    border: 1.5px solid var(--accent-cyan);
}

.btn-outline:hover {
    background: rgba(0, 209, 255, 0.1);
    color: var(--accent-cyan);
}

.btn-outline-small {
    padding: 8px 16px;
    font-size: 13px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--metallic);
}

.btn-outline-small:hover {
    background: rgba(0, 209, 255, 0.05);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.btn-large {
    padding: 14px 28px;
    font-size: 16px;
}

/* Logo Styles */
.logo img {
    height: 56px;
    width: auto;
}

.footer .logo img {
    height: 40px;
    width: auto;
    margin-bottom: 16px;
}

.email-cyan {
    color: var(--accent-cyan) !important;
}

.email-cyan:hover {
    color: var(--primary-dark) !important;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: var(--bg-primary);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    max-width: 100%;
}

.hero-visual {
    margin-top: 0;
}

.visual-container {
    background: var(--bg-secondary);
    border-radius: 24px;
    padding: 40px;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: 0 0 40px rgba(0, 209, 255, 0.05);
    border: 1px solid rgba(138, 138, 138, 0.2);
}

.hero-illustration {
    width: 100%;
    height: auto;
    display: block;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: #EFF6FF;
    color: var(--primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 24px;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 19px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    text-align: left;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--accent-cyan);
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Architecture Diagram Section */
.architecture-diagram-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.diagram-container {
    margin-top: 48px;
    border-radius: 16px;
    background: var(--bg-secondary);
    border: 1px solid rgba(138, 138, 138, 0.2);
    padding: 40px;
}

.architecture-svg {
    width: 100%;
    height: auto;
}

.architecture-svg text {
    font-family: 'Inter', sans-serif;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--bg-primary);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid rgba(138, 138, 138, 0.2);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 209, 255, 0.1);
    border-color: var(--accent-cyan);
}

.feature-icon {
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contracts Section */
.contracts {
    padding: 100px 0;
    background: white;
}

.contracts-table {
    margin-top: 48px;
}

.contracts-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.contracts-table thead {
    background: var(--gray-50);
}

.contracts-table th {
    padding: 16px 20px;
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contracts-table td {
    padding: 20px;
    border-top: 1px solid var(--gray-200);
    font-size: 14px;
}

.contracts-table code {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 13px;
    color: var(--primary);
    background: var(--gray-50);
    padding: 4px 8px;
    border-radius: 4px;
}

.contracts-table a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.contracts-table a:hover {
    text-decoration: underline;
}

.chain-info {
    display: flex;
    gap: 16px;
    margin-top: 24px;
    padding: 20px;
    background: var(--gray-50);
    border-radius: 8px;
}

.chain-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: white;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-700);
}

/* SDK Section */
.sdk {
    padding: 100px 0;
    background: var(--bg-primary);
}

.sdk-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 40px;
    margin-top: 48px;
}

.sdk-card {
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid rgba(138, 138, 138, 0.2);
    transition: all 0.3s;
}

.sdk-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 209, 255, 0.1);
    border-color: var(--accent-cyan);
}

.sdk-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.sdk-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.sdk-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.sdk-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

.sdk-feature {
    font-size: 14px;
    color: var(--text-secondary);
    padding-left: 8px;
}

.sdk-code {
    background: var(--bg-primary);
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 24px;
    border: 1px solid rgba(0, 209, 255, 0.2);
}

.sdk-code code {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 14px;
    color: var(--accent-cyan);
}

/* Get Started Section */
.get-started {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.step {
    padding: 32px;
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid rgba(138, 138, 138, 0.2);
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--accent-cyan);
    color: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.step h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.step p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.code-snippet {
    background: var(--bg-secondary);
    padding: 14px 18px;
    border-radius: 8px;
    border: 1px solid rgba(0, 209, 255, 0.2);
}

.code-snippet code {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 13px;
    color: var(--accent-cyan);
}

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

.faq-accordion {
    max-width: 800px;
    margin: 48px auto 0;
}

.faq-item {
    margin-bottom: 16px;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid rgba(138, 138, 138, 0.2);
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item:hover {
    border-color: var(--metallic-light);
}

.faq-item.active {
    border-color: var(--accent-cyan);
    box-shadow: 0 4px 16px rgba(0, 209, 255, 0.15);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 28px;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    transition: all 0.2s;
}

.faq-question:hover {
    color: var(--accent-cyan);
}

.faq-icon {
    flex-shrink: 0;
    transition: transform 0.3s;
    color: var(--accent-cyan);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 28px 24px 28px;
}

.faq-answer p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* Documentation Section */
.documentation {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.doc-card {
    background: var(--bg-primary);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid rgba(138, 138, 138, 0.2);
    text-decoration: none;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.doc-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 209, 255, 0.1);
    border-color: var(--accent-cyan);
}

.doc-icon {
    margin-bottom: 20px;
}

.doc-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.doc-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    flex-grow: 1;
}

.doc-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--accent-cyan);
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(0, 209, 255, 0.1) 0%, rgba(0, 168, 204, 0.05) 100%);
    border-top: 1px solid rgba(0, 209, 255, 0.2);
    border-bottom: 1px solid rgba(0, 209, 255, 0.2);
}

.cta-content {
    text-align: center;
}

.cta-content h2 {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.cta .btn-primary {
    background: var(--accent-cyan);
    color: var(--bg-primary);
}

.cta .btn-primary:hover {
    background: var(--primary-dark);
}

.cta .btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--metallic);
}

.cta .btn-secondary:hover {
    background: var(--bg-primary);
    border-color: var(--accent-cyan);
}

/* Footer */
.footer {
    padding: 60px 0 30px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-top: 1px solid rgba(138, 138, 138, 0.2);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
    align-items: start;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.6;
    max-width: 320px;

.footer-brand .footer-email {
    margin-top: 12px;
}

.footer-brand .footer-email a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-brand .footer-email a:hover {
    color: white;
}
}

.footer-column h4 {
    font-size: 14px;
    font-weight: 600;
    color: white;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.footer-column li {
    margin-bottom: 12px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
}

.footer-chain {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-chain a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.footer-chain a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-title {
        font-size: 48px;
    }
    
    .sdk-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .features-grid,
    .docs-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
    }
}