/* Tokio-Inspired Markdown Styles for libr0 */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;600;700&display=swap');

:root {
    --rust-orange: #CE422B;
    --tokio-magenta: #c83895;
    --tokio-magenta-dark: #a82d7a;
}

/* Base typography */
body {
    font-family: 'Roboto', sans-serif;
    font-size: 1.06em;
    -webkit-font-smoothing: antialiased;
}

#content {
    line-height: 1.7;
}

/* Hide unnecessary elements */
.menu-title,
h1#libr0 {
    display: none !important;
}

/* Professional Animated Background - Subtle Grid Flow */
html {
    background: #ffffff;
}

body {
    position: relative;
    overflow-x: hidden;
    background: transparent;
}

/* Animated gradient background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1000;
    background:
        radial-gradient(circle at 30% 20%, rgba(206, 66, 43, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(206, 66, 43, 0.02) 0%, transparent 50%),
        linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
    animation: subtleShift 15s ease-in-out infinite;
}

@keyframes subtleShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.95; }
}

/* Subtle moving dots pattern */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -999;
    background-image: radial-gradient(circle, rgba(206, 66, 43, 0.08) 1px, transparent 1px);
    background-size: 30px 30px;
    animation: dotPattern 40s linear infinite;
    opacity: 0.4;
}

@keyframes dotPattern {
    0% { background-position: 0 0; }
    100% { background-position: 30px 30px; }
}

/* Canvas for additional effects */
#memory-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -998;
    pointer-events: none;
}

/* Ensure content is above background */
#body-container,
.page-wrapper,
.page,
#content {
    background: transparent !important;
    position: relative;
    z-index: 1;
}

/* Hide default chapter title */
#introduction .chapter-title {
    display: none;
}

/* ========================================
   LANDING PAGE - HERO SECTION
   ======================================== */

.landing-hero {
    text-align: center;
    padding: 100px 40px 80px;
    margin: -20px -20px 80px -20px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.landing-hero::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(206, 66, 43, 0.2), transparent);
}

.landing-logo {
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
    display: block;
    animation: gentleFloat 4s ease-in-out infinite;
}

@keyframes gentleFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.landing-title {
    font-size: 4rem;
    font-weight: 700;
    margin: 0 0 16px 0;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.landing-title a {
    text-decoration: none;
    color: var(--rust-orange);
}

.landing-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin: 0 0 24px 0;
    line-height: 1.4;
}

.landing-description {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* Action Buttons */
.landing-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: var(--rust-orange);
    color: white !important;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(206, 66, 43, 0.2);
}

.btn-primary:hover {
    background: var(--rust-orange-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(206, 66, 43, 0.3);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: white;
    color: var(--text-primary) !important;
    text-decoration: none;
    border: 1.5px solid #e5e5e5;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-secondary:hover {
    border-color: var(--rust-orange);
    color: var(--rust-orange) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* ========================================
   STATS SECTION
   ======================================== */

.landing-stats {
    display: flex;
    justify-content: center;
    gap: 100px;
    padding: 60px 40px;
    margin: 0 -20px 80px -20px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    background: rgba(250, 250, 250, 0.5);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--rust-orange);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    font-weight: 600;
}

/* ========================================
   FEATURE CARDS
   ======================================== */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin: 60px 0;
}

.feature-card {
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    padding: 32px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
    border-color: rgba(206, 66, 43, 0.3);
}

.feature-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--rust-orange);
}

.feature-card h3 {
    color: var(--text-primary);
    margin: 0 0 12px 0;
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.3;
}

.feature-card h3 a {
    text-decoration: none;
    color: var(--text-primary);
    transition: color 0.2s;
}

.feature-card h3 a:hover {
    color: var(--rust-orange);
}

.feature-card h3 code {
    background: none;
    padding: 0;
    color: var(--rust-orange);
    font-size: 1.25rem;
    font-weight: 700;
}

.feature-card p {
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.95rem;
}

/* ========================================
   TOKIO-STYLE MARKDOWN CONTENT
   ======================================== */

/* Headings - all black, clean spacing */
#content main h1,
#content main h2,
#content main h3,
#content main h4 {
    color: #000000 !important;
}

#content main h1 {
    font-size: 2.5rem;
    font-weight: 400;
    margin: 0 0 0.5rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e5e5e5;
}

#content main h2 { font-size: 1.75rem; font-weight: 500; margin: 2.5rem 0 1rem 0; }
#content main h3 { font-size: 1.4rem; font-weight: 500; margin: 2rem 0 0.75rem 0; }
#content main h4 { font-size: 1.1rem; font-weight: 600; margin: 1.5rem 0 0.5rem 0; }

/* Remove heading decorations */
#content main h1::before,
#content main h2::before,
#content main h3::before,
#content main h4::before { display: none; }

/* Heading anchor links - black */
#content main a.header {
    color: #000000 !important;
    text-decoration: none;
}

/* Text */
#content main p {
    line-height: 1.8;
    margin: 0 0 1.2em 0;
}

#content main strong {
    font-weight: 600;
}

/* Lists */
#content main ul,
#content main ol {
    margin: 1.2em 0;
    padding-left: 2em;
}

#content main li {
    margin: 1rem 0;
    line-height: 1.8;
}

#content main ul li::marker {
    color: var(--tokio-magenta);
    font-size: 1.2em;
}

#content main ol li::marker {
    font-weight: 600;
}

/* Links */
#content main a {
    color: var(--tokio-magenta);
    text-decoration: none;
}

#content main a:hover {
    color: var(--tokio-magenta-dark);
    text-decoration: underline;
}

/* Inline code */
#content main code {
    background: #f0f0f0;
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-size: 0.9em;
    font-family: 'SF Mono', Monaco, monospace;
}

#content main a code {
    color: var(--tokio-magenta);
}

/* Code blocks */
#content main pre {
    background: #f6f8fa;
    border-radius: 4px;
    padding: 16px;
    margin: 1.5em 0;
}

#content main pre code {
    background: none;
    padding: 0;
}

#content main pre pre {
    background: none;
    padding: 0;
    margin: 0;
}

/* Special backgrounds for diagram blocks */

/* Bob diagrams (rendered as SVG) */
#content main div:has(svg.svgbob) {
    background: #fff8f0;
    border-left: 4px solid var(--rust-orange);
    border-radius: 4px;
    padding: 16px;
    margin: 1.5em 0;
}

/* Mermaid diagrams */
#content main div:has(.mermaid),
#content main pre:has(code.language-mermaid) {
    background: #f0f9ff;
    border-left: 4px solid #0ea5e9;
    border-radius: 4px;
    padding: 16px;
    margin: 1.5em 0;
}

/* Blockquotes - Tokio style with magenta accent */
#content main blockquote {
    border-left: 4px solid var(--tokio-magenta);
    background: var(--tokio-magenta-light);
    padding: 1em 1.5em;
    margin: 1.5em 0;
    border-radius: 4px;
}

#content main blockquote p {
    margin: 0.5em 0;
}

#content main blockquote p:first-child {
    margin-top: 0;
}

#content main blockquote p:last-child {
    margin-bottom: 0;
}

/* Tables */
#content main table {
    border-collapse: collapse;
    width: 100%;
    margin: 1.5em 0;
}

#content main table th,
#content main table td {
    border: 1px solid var(--border-color);
    padding: 0.75em 1em;
    text-align: left;
}

#content main table th {
    background: var(--bg-subtle);
    font-weight: 600;
    color: var(--text-primary);
}

#content main table td {
    color: var(--text-primary);
}

/* Horizontal rules */
#content main hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2.5em 0;
}

/* ========================================
   PHILOSOPHY SECTION
   ======================================== */

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin: 60px 0;
}

.philosophy-item {
    padding: 32px;
    background: white;
    border-left: 4px solid var(--rust-orange);
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.philosophy-item:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.philosophy-item h4 {
    color: var(--rust-orange);
    margin: 0 0 12px 0;
    font-size: 1.125rem;
    font-weight: 700;
}

.philosophy-item p {
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.95rem;
}

/* ========================================
   MENU BAR / HEADER
   ======================================== */

/* Tokio-style header - clean white background with black icons */
#menu-bar {
    background-color: #ffffff !important;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08) !important;
}

/* Black icons and text in menu bar */
#menu-bar .icon-button,
#menu-bar a,
#menu-bar i {
    color: #000000 !important;
}

#menu-bar .icon-button:hover,
#menu-bar a:hover,
#menu-bar i:hover {
    color: #4a4a4a !important;
}

/* ========================================
   GENERAL IMPROVEMENTS
   ======================================== */

/* Override general pre styling - let main content styles handle it */
pre {
    border: none;
    border-radius: 4px;
}

code {
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Courier New', monospace;
}

/* Better blockquotes */
blockquote {
    border-left: 3px solid var(--rust-orange);
    background: rgba(250, 250, 250, 0.8);
    padding: 20px 24px;
    margin: 24px 0;
    border-radius: 4px;
}

/* Enhance lists */
ul li, ol li {
    margin: 10px 0;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* Clean link styling */
a {
    color: var(--rust-orange);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--rust-orange-light);
}

/* Better badges */
a img[src*="badge"] {
    display: inline-block;
    margin: 4px;
}

/* Final CTA Section */
.btn-large {
    padding: 16px 48px !important;
    font-size: 1.125rem !important;
    border-radius: 10px !important;
}

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

@media (max-width: 768px) {
    .landing-hero {
        padding: 60px 24px 50px;
    }

    .landing-title {
        font-size: 2.5rem;
    }

    .landing-subtitle {
        font-size: 1.25rem;
    }

    .landing-stats {
        gap: 40px;
        flex-direction: column;
        padding: 40px 24px;
    }

    .stat-number {
        font-size: 2rem;
    }

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

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

    h2 {
        font-size: 2rem;
        margin: 60px 0 32px 0;
    }
}

/* ========================================
   DARK THEME SUPPORT
   ======================================== */

.navy body::before,
.coal body::before,
.ayu body::before {
    background:
        radial-gradient(circle at 30% 20%, rgba(206, 66, 43, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(206, 66, 43, 0.04) 0%, transparent 50%),
        linear-gradient(180deg, #0d1117 0%, #161b22 100%);
}

.navy .landing-hero,
.coal .landing-hero,
.ayu .landing-hero {
    background: rgba(13, 17, 23, 0.9);
    backdrop-filter: blur(20px);
}

.navy .feature-card,
.coal .feature-card,
.ayu .feature-card {
    background: rgba(22, 27, 34, 0.8);
    border-color: rgba(206, 66, 43, 0.2);
}

.navy .philosophy-item,
.coal .philosophy-item,
.ayu .philosophy-item {
    background: rgba(22, 27, 34, 0.8);
}