/* UNY LAYER-1 INSTITUTIONAL SITE STYLES */
/* Professional, Conservative, Bank-Safe Design */

:root {
    /* Colors - Conservative Institutional Palette */
    --primary: #1a1a2e;
    --primary-light: #2d3250;
    --accent: #2a5298;
    --accent-light: #3a6bb5;
    --success: #28a745;
    --success-light: #d4edda;
    --warning: #ffc107;
    --danger: #dc3545;
    --text: #212529;
    --text-light: #6c757d;
    --bg: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a2e;
    --border: #dee2e6;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--bg);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.header {
    background-color: var(--bg-dark);
    color: #fff;
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid var(--accent);
}

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

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 0.25rem;
}

.tagline {
    font-size: 0.875rem;
    color: #aaa;
    font-weight: 300;
}

.nav {
    display: flex;
    gap: var(--spacing-md);
}

.nav a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-light);
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    color: #ddd;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 4px;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--accent-light);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: #fff;
    border-color: #fff;
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Status Banner */
.status-banner {
    background-color: var(--bg-light);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: var(--spacing-md) 0;
}

.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.status-item {
    text-align: center;
}

.status-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.status-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--success);
}

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
}

.section-dark {
    background-color: var(--bg-dark);
    color: #fff;
}

.section-dark * {
    color: inherit;
}

.section-dark p,
.section-dark li,
.section-dark span {
    color: #e8e8e8;
}

.section-dark h2,
.section-dark h3,
.section-dark h4,
.section-dark h5 {
    color: #fff;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-dark .section-subtitle {
    color: #ccc;
}

/* Info Banner */
.info-banner {
    background: linear-gradient(135deg, #1a2332 0%, #2a3442 100%);
    border: 1px solid var(--accent);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.info-banner h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent);
}

.info-banner h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: #fff;
}

.info-banner p {
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
    color: #e8e8e8;
}

.info-banner a {
    color: #6ab0ff;
    text-decoration: underline;
}

.info-banner a:hover {
    color: #6ab0ff;
}

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

/* Cards */
.card {
    background-color: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--spacing-md);
    transition: var(--transition);
}

.section-dark .card {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
}

.section-dark .card p,
.section-dark .card li,
.section-dark .card span {
    color: #e8e8e8;
}

.section-dark .card h3,
.section-dark .card h4 {
    color: #fff;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent);
}

.card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.list {
    list-style: none;
}

.list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: inherit;
}

.section-dark .list li {
    color: #e8e8e8;
}

.list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

/* Proof Section */
.proof-container {
    max-width: 900px;
    margin: 0 auto;
}

.proof-summary {
    background-color: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
}

.proof-summary h3 {
    margin-bottom: var(--spacing-sm);
}

.address {
    display: block;
    font-family: var(--font-mono);
    font-size: 1rem;
    background-color: rgba(0, 0, 0, 0.3);
    padding: 1rem;
    border-radius: 4px;
    margin: var(--spacing-sm) 0;
    word-break: break-all;
    color: #4ec9b0;
}

.proof-note {
    font-size: 0.875rem;
    color: #aaa;
    margin-top: 0.5rem;
}

.proof-transactions {
    margin-bottom: var(--spacing-md);
}

.transaction {
    background-color: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--success);
}

.transaction h4 {
    margin-bottom: var(--spacing-sm);
    color: #fff;
}

.tx-hash {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    background-color: rgba(0, 0, 0, 0.3);
    padding: 0.75rem;
    border-radius: 4px;
    margin: var(--spacing-sm) 0;
    word-break: break-all;
    color: #ce9178;
}

.status-success {
    color: var(--success);
    font-weight: 600;
}

.verify-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    color: var(--accent-light);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.verify-link:hover {
    color: #fff;
}

/* Math Steps */
.proof-math {
    background-color: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-md);
    border-radius: 8px;
}

.math-steps {
    margin-top: var(--spacing-sm);
}

.math-step {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.math-step:last-child {
    border-bottom: none;
}

.math-label {
    color: #aaa;
}

.math-value {
    font-family: var(--font-mono);
    color: #fff;
    font-weight: 600;
}

.math-result {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 0.75rem;
    margin-top: 0.5rem;
    border-radius: 4px;
}

.math-result.success {
    background-color: rgba(40, 167, 69, 0.1);
    border: 1px solid var(--success);
}

/* Verification Steps */
.verification-steps {
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
}

.step {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-light);
    border-radius: 8px;
    border-left: 4px solid var(--accent);
}

.step-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background-color: var(--accent);
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.step-content h3 {
    margin-bottom: var(--spacing-sm);
}

.section-dark .step {
    background-color: rgba(255, 255, 255, 0.05);
}

.section-dark .step-content,
.section-dark .step-content p,
.section-dark .step-content li {
    color: #e8e8e8;
}

.step-time {
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 600;
}

.code-block {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    background-color: #1e1e1e;
    color: #d4d4d4;
    padding: 1rem;
    border-radius: 4px;
    margin: var(--spacing-sm) 0;
    overflow-x: auto;
    white-space: pre;
}

.verification-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Documents Section */
.doc-category {
    margin-bottom: var(--spacing-md);
}

.doc-category h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.doc-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.doc-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    text-decoration: none;
    color: #fff;
    transition: var(--transition);
    border: 1px solid transparent;
}

.doc-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
    transform: translateX(4px);
}

.doc-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.doc-info h4 {
    margin-bottom: 0.25rem;
    color: #fff;
}

.doc-info p {
    font-size: 0.875rem;
    color: #aaa;
}

/* Contact Section */
.contact-card {
    background-color: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    border: 1px solid var(--border);
}

.contact-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
}

.contact-card p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}

.contact-link {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 1rem;
    background-color: rgba(42, 82, 152, 0.1);
    border-radius: 4px;
    transition: var(--transition);
}

.contact-link:hover {
    background-color: var(--accent);
    color: #fff;
}

.contact-note {
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Footer */
.footer {
    background-color: var(--bg-dark);
    color: #fff;
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 2px solid var(--accent);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-section h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

.footer-tagline {
    font-size: 0.875rem;
    color: #aaa;
    margin-top: 0.5rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #aaa;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-light);
}

.footer-disclaimer {
    font-size: 0.875rem;
    color: #aaa;
    line-height: 1.6;
}

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

.footer-bottom p {
    font-size: 0.875rem;
    color: #aaa;
    margin: 0.25rem 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .nav {
        flex-direction: column;
        gap: 0;
        width: 100%;
    }
    
    .nav a {
        padding: 0.75rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .step {
        flex-direction: column;
    }
    
    .verification-cta {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }
    
    .hero h2 {
        font-size: 1.75rem;
    }
    
    .code-block {
        font-size: 0.75rem;
    }
    
    .address,
    .tx-hash {
        font-size: 0.75rem;
    }
}