/* PQCrypta Proxy - Technical Documentation CSS */
/* No inline styles - CSP compliant */

:root {
    --primary-color: #00b4d8;
    --primary-dark: #0077b6;
    --primary-light: #90e0ef;
    --accent-color: #00ff88;
    --accent-dark: #00cc6a;
    --bg-dark: #0a0a0f;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a25;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --border-color: #2a2a3a;
    --success-color: #00ff88;
    --warning-color: #ffaa00;
    --error-color: #ff4444;
    --code-bg: #1a1a2e;
    --code-border: #3a3a5a;
    --shadow-glow: 0 0 20px rgba(0, 180, 216, 0.3);
    --shadow-card: 0 4px 6px rgba(0, 0, 0, 0.4);
}

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

html, body {
    background: transparent;
    min-height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: linear-gradient(180deg, #0a0a0f 0%, #0d1b2a 100%);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 6px;
    border: 2px solid rgba(0, 0, 0, 0.3);
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.4);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--accent-color) 0%, var(--primary-light) 100%);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.6);
}

* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) #0a0a0f;
}

/* Header */
.proxy-header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #0d1b2a 100%);
    padding: 2rem 1rem;
    box-shadow: 0 4px 20px rgba(0, 180, 216, 0.3);
    border-bottom: 3px solid var(--accent-color);
    position: relative;
    z-index: 50;
}

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

.header-content {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.logo-link:hover {
    transform: scale(1.05);
}

.logo-image {
    width: 100px;
    height: 100px;
    border-radius: 16px;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
    transition: all 0.3s ease;
}

.logo-image:hover {
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.7);
}

.title-container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 0;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-light));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.page-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 300;
    margin: 0;
}

.badge-container {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.badge-img {
    height: 20px;
}

/* Tab Navigation */
.tab-nav {
    background: var(--bg-card);
    padding: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0;
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 1rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    position: relative;
}

.tab-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
    background: var(--bg-card-hover);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-color);
}

/* Content Container */
.content-container {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 1rem 2rem;
    position: relative;
    z-index: 50;
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

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

/* Overview Grid */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    width: 100%;
}

.info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

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

.info-card.full-width {
    grid-column: 1 / -1;
}

.info-card.half-width {
    grid-column: span 1;
}

.info-card a {
    color: var(--accent-color);
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
    transition: all 0.3s ease;
    font-weight: 600;
}

.info-card a:hover {
    color: var(--primary-light);
    text-shadow: 0 0 8px rgba(0, 255, 136, 0.5);
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--accent-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

/* Info Lists */
.info-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.5rem 1rem;
    font-size: 0.95rem;
}

.info-list dt {
    font-weight: 600;
    color: var(--text-secondary);
}

.info-list dd {
    color: var(--text-primary);
}

/* Feature Lists */
.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
}

.icon-check {
    font-size: 1.2rem;
    color: var(--success-color);
    font-weight: bold;
}

/* Abstract Text */
.abstract-text {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    font-size: 1rem;
}

.abstract-text strong {
    color: var(--accent-color);
}

/* Tables */
.format-table,
.algorithm-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.9rem;
    background: var(--code-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.format-table thead,
.algorithm-table thead {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #0d1b2a 100%);
}

.format-table th,
.algorithm-table th {
    padding: 0.875rem 1rem;
    text-align: left;
    font-weight: 700;
    color: #fff;
    border-bottom: 2px solid var(--primary-color);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

.format-table td,
.algorithm-table td {
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.format-table tbody tr:hover,
.algorithm-table tbody tr:hover {
    background: rgba(0, 180, 216, 0.1);
}

.format-table tbody tr:last-child td,
.algorithm-table tbody tr:last-child td {
    border-bottom: none;
}

.status-active {
    color: var(--success-color);
    font-weight: 700;
}

.mono {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    color: var(--primary-light);
}

/* Code Blocks */
.code-block {
    background: linear-gradient(135deg, #1a1a2e 0%, #0d1b2a 100%);
    border: 2px solid var(--primary-dark);
    border-radius: 12px;
    padding: 1.5rem;
    overflow-x: auto;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--accent-color);
    margin: 1rem 0;
    box-shadow: 0 4px 15px rgba(0, 180, 216, 0.15);
    position: relative;
}

.code-block code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    white-space: pre;
    display: block;
    color: var(--accent-color);
    text-shadow: 0 0 5px rgba(0, 255, 136, 0.2);
}

.architecture-diagram {
    font-size: 0.75rem;
    line-height: 1.4;
    background: #0a0a15;
}

.architecture-diagram code {
    color: var(--primary-light);
}

.inline-code {
    background: var(--code-bg);
    border: 1px solid var(--code-border);
    border-radius: 4px;
    padding: 0.15rem 0.4rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.85rem;
    color: var(--primary-light);
}

/* Markdown Content */
.markdown-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    line-height: 1.8;
}

.markdown-content a {
    color: var(--accent-color);
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
    transition: all 0.3s ease;
    font-weight: 600;
}

.markdown-content a:hover {
    color: var(--primary-light);
    text-shadow: 0 0 8px rgba(0, 255, 136, 0.5);
}

.section-h1 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent-color);
    margin: 1rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--accent-color);
}

.section-h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-light);
    margin: 2rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.section-h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 1.5rem 0 0.75rem;
}

.section-divider {
    border: none;
    border-top: 2px solid var(--border-color);
    margin: 2rem 0;
}

.subsection-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-light);
    margin: 1.5rem 0 0.75rem;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.feature-card {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.25rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.feature-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

/* Feature List Detailed */
.feature-list-detailed {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.feature-list-detailed li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.feature-list-detailed li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.feature-list-detailed li strong {
    color: var(--text-primary);
}

/* Architecture SVG Container */
.architecture-svg-container {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin: 1.5rem 0;
    overflow-x: auto;
}

.architecture-svg {
    width: 100%;
    max-width: 900px;
    height: auto;
    min-height: 500px;
    margin: 0 auto;
    display: block;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

@media (max-width: 768px) {
    .architecture-svg-container {
        padding: 0.5rem;
    }
    .architecture-svg {
        min-height: 400px;
    }
}

/* Dependencies Grid - 3 columns */
.deps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin: 1.5rem 0;
}

@media (max-width: 1024px) {
    .deps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .deps-grid {
        grid-template-columns: 1fr;
    }
}

.dep-category {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
}

.dep-category h3 {
    color: var(--accent-color);
    font-size: 1rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.dep-category ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dep-category li {
    padding: 0.25rem 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.4;
}

/* Request Flow List */
.request-flow-list {
    list-style: none;
    padding: 0;
    counter-reset: flow-counter;
}

.request-flow-list li {
    padding: 0.75rem 0 0.75rem 3rem;
    position: relative;
    color: var(--text-secondary);
    border-left: 2px solid var(--border-color);
    margin-left: 1rem;
}

.request-flow-list li::before {
    counter-increment: flow-counter;
    content: counter(flow-counter);
    position: absolute;
    left: -1.25rem;
    top: 0.75rem;
    width: 2rem;
    height: 2rem;
    background: var(--primary-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: bold;
    color: var(--accent-color);
}

.request-flow-list li strong {
    color: var(--text-primary);
}

/* Security Checklist */
.security-checklist {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 0.75rem;
    margin: 1.5rem 0;
}

.security-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: all 0.2s ease;
}

.security-item:hover {
    border-color: var(--success-color);
}

.security-item.passed .security-icon {
    color: var(--success-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.security-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Security List */
.security-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.security-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.security-list li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.security-list li strong {
    color: var(--text-primary);
}

/* Hardening Grid */
.hardening-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.hardening-item {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
}

.hardening-title {
    color: var(--accent-color);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.hardening-item p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin: 0;
}

/* Prerequisites List */
.prereq-list {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 1rem;
}

.prereq-list li {
    padding: 0.35rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.prereq-list li::before {
    content: '-';
    position: absolute;
    left: 0.5rem;
    color: var(--primary-color);
}

.prereq-list a {
    color: var(--accent-color);
    text-decoration: underline;
}

/* Standards List */
.standards-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.standards-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

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

.standards-list li strong {
    color: var(--primary-light);
}

/* Footer */
.proxy-footer {
    background: var(--bg-card);
    border-top: 3px solid var(--accent-color);
    padding: 2rem 1rem;
    margin-top: 4rem;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 50;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
}

.copyright {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.copyright strong {
    color: var(--accent-color);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 1rem 0;
}

.footer-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

.footer-separator {
    color: var(--border-color);
}

.document-info {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.document-info strong {
    color: var(--text-primary);
}

.document-info a {
    color: var(--accent-color);
}

/* Copy Button */
.copy-code-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--primary-dark);
    color: white;
    border: none;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.75rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.code-block:hover .copy-code-btn {
    opacity: 1;
}

.copy-code-btn.copied {
    background: var(--success-color);
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .logo-image {
        width: 70px;
        height: 70px;
    }

    .title-container {
        align-items: center;
    }

    .page-title {
        font-size: 1.8rem;
    }

    .page-subtitle {
        font-size: 0.95rem;
    }

    .badge-container {
        justify-content: center;
    }

    .tab-btn {
        padding: 0.75rem 1rem;
        font-size: 0.85rem;
    }

    .overview-grid {
        grid-template-columns: 1fr;
    }

    .info-card,
    .info-card.full-width,
    .info-card.half-width {
        grid-column: 1 / -1 !important;
    }

    .code-block {
        font-size: 0.75rem;
        padding: 1rem;
    }

    .architecture-diagram {
        font-size: 0.55rem;
    }

    .markdown-content {
        padding: 1rem;
    }

    .section-h1 {
        font-size: 1.6rem;
    }

    .section-h2 {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 1.5rem;
    }

    .tab-btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }
}