/* styles.css */

/* Base styles */
body {
    font-family: system-ui, -apple-system, sans-serif;
}

.sidebar {
    background-color: #f8f9fa;
}

/* Navbar Styling */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
}

.navbar .navbar-brand,
.navbar .nav-link,
.navbar .navbar-toggler-icon {
    color: white !important;
}

.navbar .nav-link:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 2rem 1rem;
    margin-bottom: 2rem;
}

.hero-section h2 {
    font-size: 1.8rem;
    color: #1f2937;
    margin-bottom: 1rem;
}

.hero-section p {
    font-size: 1.1rem;
    color: #6b7280;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Software Cards Grid */
.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Individual Card */
.software-card {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;

    /* Link specific styles */
    display: block;
    text-decoration: none !important;
    color: inherit !important;
    cursor: pointer;
}

.software-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--card-accent, linear-gradient(135deg, #667eea 0%, #764ba2 100%));
}

.software-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

/* Card Header with Logo */
.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.card-logo {
    width: 70px;
    height: 70px;
    object-fit: contain;
    border-radius: 12px;
}

.card-title-group {
    flex: 1;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    background: var(--card-accent, linear-gradient(135deg, #667eea 0%, #764ba2 100%));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 0.25rem 0;
}

.card-version {
    display: inline-block;
    font-size: 0.75rem;
    padding: 2px 8px;
    background: var(--card-accent, linear-gradient(135deg, #667eea 0%, #764ba2 100%));
    color: white;
    border-radius: 12px;
    font-weight: 600;
}

/* Card Description */
.card-description {
    color: #4b5563;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

/* Features List */
.card-features {
    list-style: none;
    padding: 0;
    margin: 0 0 1.25rem 0;
}

.card-features li {
    padding: 0.35rem 0;
    color: #6b7280;
    font-size: 0.9rem;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.card-features li::before {
    content: '✓';
    color: #10b981;
    font-weight: bold;
}

/* Card Actions */
.card-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.btn-learn-more {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    background: var(--card-accent, linear-gradient(135deg, #667eea 0%, #764ba2 100%));
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.btn-learn-more:hover {
    opacity: 0.9;
    transform: scale(1.02);
    color: white;
    text-decoration: none;
}

.btn-github {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem;
    background: #24292e;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.btn-github:hover {
    background: #1a1e22;
    transform: scale(1.05);
    color: white;
    text-decoration: none;
}

.btn-github svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* Centered CTA Group */
.cta-group.centered {
    justify-content: center;
}

/* Pipeline Intro Hero */
.pipeline-intro {
    text-align: center;
    padding: 100px 20px 60px 20px;
    background: #ffffff;
}

.pipeline-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    color: #4f46e5;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.pipeline-intro h2 {
    font-size: 2.8rem;
    font-weight: 800;
    color: #111827;
    margin-bottom: 16px;
}

.pipeline-intro p {
    font-size: 1.2rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

/* --- Timeline Flowchart Section --- */
.timeline-section {
    position: relative;
    padding: 100px 20px;
    background: linear-gradient(180deg, #ffffff 0%, #f9fafb 100%);
    overflow: hidden;
}

.timeline-container {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

/* The Central Spine */
.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e5e7eb;
    /* Base faint line */
    transform: translateX(-50%);
    z-index: 1;
}

.timeline-progress {
    position: absolute;
    left: 50%;
    top: 0;
    width: 2px;
    height: 0;
    /* Animated by JS */
    background: #4f46e5;
    /* Active brand color */
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: 0 0 15px rgba(79, 70, 229, 0.5);
    /* Glow */
}

/* Rows */
.timeline-row {
    display: flex;
    margin-bottom: 0px;
    /* Overlap slightly or just touch */
    position: relative;
    padding-bottom: 80px;
}

.timeline-row:last-child {
    padding-bottom: 0;
}

.timeline-item,
.timeline-spacer {
    flex: 1;
}

/* Item Content Card */
.timeline-content {
    background: white;
    padding: 30px;
    border-radius: 24px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    position: relative;
    z-index: 10;
    transition: transform 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

/* Left vs Right logic */
.timeline-item.left {
    padding-right: 50px;
    text-align: right;
}

.timeline-item.left .timeline-content {
    margin-left: auto;
    max-width: 420px;
    /* Keep it collected */
}

.timeline-item.right {
    padding-left: 50px;
    text-align: left;
}

.timeline-item.right .timeline-content {
    margin-right: auto;
    max-width: 420px;
}

/* Connectors (The dots on the line) */
.timeline-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.timeline-item.left .timeline-header {
    justify-content: flex-end;
}

.timeline-item.right .timeline-header {
    justify-content: flex-start;
}

.step-badge {
    background: #111827;
    color: white;
    font-weight: 700;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.timeline-logo {
    max-width: 80px;
    /* Smaller, icon-like */
    filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.1));
}

.timeline-content h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 10px;
    color: #1f2937;
}

.timeline-desc {
    font-size: 1rem;
    line-height: 1.5;
    color: #4b5563;
    margin-bottom: 25px;
}

/* Coming Soon Items */
.timeline-item.coming-soon .timeline-content {
    background: rgba(255, 255, 255, 0.7);
    border: 1px dashed #d1d5db;
    box-shadow: none;
}

.timeline-item.coming-soon h2 {
    color: #9ca3af;
}

.timeline-item.coming-soon .timeline-desc {
    color: #9ca3af;
    margin-bottom: 0;
}

.soon-icon {
    font-size: 2rem;
}

/* Connector Dot on Spine */
.timeline-item::after {
    content: '';
    position: absolute;
    top: 50px;
    /* Align with header roughly */
    width: 16px;
    height: 16px;
    background: white;
    border: 3px solid #1f2937;
    border-radius: 50%;
    z-index: 5;
}

.timeline-item.left::after {
    right: -8px;
}

/* Half width of dot (8px) centered on line */
.timeline-item.right::after {
    left: -8px;
}

/* Active Dot State (can be triggered by JS class .active) */
.timeline-item.active::after {
    background: #4f46e5;
    border-color: #4f46e5;
    box-shadow: 0 0 15px rgba(79, 70, 229, 0.6);
}

/* Actions */
.timeline-actions {
    display: flex;
    gap: 10px;
}

.timeline-item.left .timeline-actions {
    justify-content: flex-end;
}

.timeline-item.right .timeline-actions {
    justify-content: flex-start;
}

.t-btn {
    padding: 8px 16px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.t-btn-docs {
    background: #f3f4f6;
    color: #1f2937;
}

.t-btn-docs:hover {
    background: #e5e7eb;
}

.t-btn-git {
    background: #1f2937;
    color: white;
}

.t-btn-git:hover {
    background: black;
    transform: translateY(-2px);
}

/* Responsive Mobile */
@media (max-width: 768px) {

    .timeline-line,
    .timeline-progress {
        left: 30px;
    }

    /* Move line to left */
    .timeline-item {
        width: 100%;
    }

    .timeline-spacer {
        display: none;
    }

    .timeline-row {
        flex-direction: column;
        padding-bottom: 60px;
    }

    .timeline-item.left {
        padding-right: 0;
        padding-left: 70px;
        text-align: left;
    }

    .timeline-item.right {
        padding-left: 70px;
    }

    .timeline-item.left .timeline-content,
    .timeline-item.right .timeline-content {
        margin-left: 0;
        max-width: 100%;
    }

    .timeline-item.left .timeline-header {
        justify-content: flex-start;
    }

    /* Reset from right align */
    .timeline-item.left .timeline-actions {
        justify-content: flex-start;
    }

    .timeline-item.left::after {
        left: 22px;
        right: auto;
    }

    /* Align dots to new line pos */
    .timeline-item.right::after {
        left: 22px;
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .software-grid {
        grid-template-columns: 1fr;
        padding: 0.5rem;
    }

    .hero-section h2 {
        font-size: 1.5rem;
    }

    .card-header {
        flex-direction: column;
        text-align: center;
    }

    .card-actions {
        flex-direction: column;
    }

    .btn-github {
        width: 100%;
    }
}

/* Concept Map Styles */
.concept-map-container {
    padding: 2rem 1rem;
    margin: 2rem auto;
    text-align: center;
}

.concept-map {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.concept-sources {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    background: linear-gradient(145deg, #f8fafc 0%, #f1f5f9 100%);
    padding: 1.5rem;
    border-radius: 20px;
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.concept-item {
    padding: 0.75rem 1.25rem;
    color: white;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;

    /* Flex alignment for logo + text */
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.concept-logo {
    width: 24px;
    height: 24px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.concept-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

.concept-flow-arrow {
    font-size: 2rem;
    color: #cbd5e1;
    animation: flowBounce 2s infinite ease-in-out;
}

@keyframes flowBounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(5px);
    }
}

.concept-platform {
    display: inline-block;
    padding: 1.25rem 2.5rem;
    background: var(--card-accent, linear-gradient(135deg, #1f2937 0%, #374151 100%));
    color: white;
    border-radius: 16px;
    font-weight: 700;
    font-size: 1.2rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2);
}

/* Gradient Presets for Concept Items */
.bg-ink {
    background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%);
}

.bg-lens {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.bg-layout {
    background: linear-gradient(135deg, #ec4899 0%, #be185d 100%);
}

/* --- Features Section (Simplified) --- */
.features-section {
    padding: 80px 20px;
    background: #ffffff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: #f9fafb;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
}

.feature-card.featured {
    background: #111827;
    color: white;
    grid-column: 1 / -1;
    /* Span full width */
}

.feature-card.featured p {
    color: #9ca3af;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 0;
}

.download-btn {
    display: inline-block;
    margin-top: 25px;
    padding: 12px 24px;
    background: #4f46e5;
    color: white;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.download-btn:hover {
    background: #4338ca;
    transform: translateY(-2px);
}

/* Pixel Iframe Card */
.pixel-card {
    position: relative;
}

.pixel-iframe-wrapper {
    margin-top: 15px;
    width: 100%;
    height: 80px;
    overflow: hidden;
    border-radius: 8px;
}

.pixel-iframe-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
    pointer-events: auto;
}

/* --- Publications Section --- */
.publications-section {
    padding: 100px 20px;
    background: linear-gradient(180deg, #f9fafb 0%, #ffffff 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    color: #4f46e5;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: #111827;
    margin-bottom: 12px;
}

.section-header p {
    color: #6b7280;
    font-size: 1.1rem;
}

.publications-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.publication-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    text-decoration: none;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
    display: block;
}

.publication-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
    border-color: #d1d5db;
}

.pub-source {
    font-size: 0.85rem;
    color: #4f46e5;
    font-weight: 600;
    margin-bottom: 10px;
}

.publication-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 8px;
}

.pub-meta {
    color: #9ca3af;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.read-link {
    color: #4f46e5;
    font-weight: 600;
    font-size: 0.95rem;
}

.pub-doi {
    font-size: 0.8rem;
    color: #6b7280;
    font-family: monospace;
    margin-bottom: 12px;
}

.publication-card.preprint {
    border-style: dashed;
    background: #fafafa;
}

.publication-card.preprint .pub-source {
    color: #f59e0b;
}

/* --- Footer --- */
.site-footer {
    background: #111827;
    color: white;
    padding: 60px 20px 30px 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
    gap: 40px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    width: 50px;
    margin-bottom: 15px;
}

.footer-brand p {
    color: #9ca3af;
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 15px;
    color: #9ca3af;
}

.footer-col a {
    display: block;
    color: white;
    text-decoration: none;
    margin-bottom: 10px;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: #6366f1;
}

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

.footer-bottom p {
    color: #6b7280;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-brand {
        max-width: 100%;
    }

    .footer-links {
        flex-direction: column;
        gap: 30px;
    }
}
/* Fix for GitHub logo size in intro.qmd */
.github-main-link svg {
    width: 20px;
    height: 20px;
    vertical-align: middle;
    margin-right: 8px;
    fill: currentColor;
}

/* GitHub Section Styling */
.github-section {
    text-align: center;
    padding: 3rem 1rem;
    margin-top: 2rem;
}

.github-main-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    background-color: #24292e;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.github-main-link:hover {
    background-color: #1a1e22;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
    color: white;
    text-decoration: none;
}