/* Digital Heritage Archive - Modern Retro Technical Theme */
:root {
    /* Color System - MDN/Ruffle Inspired */
    --bg-color: #1b1b1b;
    --bg-secondary: #242424;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent-color: #ff4f00;
    /* Flash/Ruffle Orange */
    --border-color: #3e3e3e;
    --code-bg: #000000;

    /* Typography */
    /* Sans for body readability */
    --font-body: 'Inter', system-ui, -apple-system, "Microsoft JhengHei", "PingFang TC", sans-serif;
    /* Mono for headers and tech feel */
    --font-heading: 'JetBrains Mono', 'Fira Code', monospace;

    /* Layout */
    --container-width: 1000px;
    /* Slightly narrower for reading focus */
    --header-height: 70px;
    --border-radius: 0px;
    /* Sharp corners for retro feel */
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Typography Overrides */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: #fff;
    font-weight: 700;
    letter-spacing: -0.02em;
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.2s ease;
}

/* Header & Navigation */
header {
    background-color: var(--bg-color);
    border-bottom: 2px solid var(--border-color);
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
}

.auth-nav {
    display: flex;
    gap: 1.5rem;
}

.nav-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-color);
    letter-spacing: -0.5px;
    padding: 0.5rem 0.8rem;
    background: var(--code-bg);
    border: 1px solid var(--border-color);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
}

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

nav a.active::after {
    content: '';
    position: absolute;
    bottom: -24px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--accent-color);
}

/* Container */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Hero Section - Functional Entry */
.hero {
    padding: 5rem 0 4rem;
    border-bottom: 1px dashed var(--border-color);
    margin-bottom: 4rem;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

/* Buttons -> Retro Text Links */
.cta-button {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: #1b1b1b;
    background-color: var(--accent-color);
    padding: 0.8rem 1.5rem;
    border: 1px solid var(--accent-color);
    font-weight: 700;
    display: inline-block;
    transition: transform 0.1s;
}

.cta-button:hover {
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0px rgba(255, 79, 0, 0.4);
}

.secondary-link {
    font-family: var(--font-heading);
    color: var(--text-primary);
    border-bottom: 1px solid var(--text-secondary);
    padding-bottom: 2px;
}

.secondary-link:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
}

/* Module Grid -> Terminal Blocks */
.modules {
    padding-bottom: 4rem;
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.module-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    display: block;
    position: relative;
    transition: all 0.2s ease;
}

/* 8-bit hover effect */
.module-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-4px);
    box-shadow: 6px 6px 0px #000;
}

.module-icon {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    color: var(--bg-color);
    background: var(--text-secondary);
    padding: 0.2rem 0.6rem;
    display: inline-block;
    margin-bottom: 1rem;
    font-weight: 700;
}

.module-card:hover .module-icon {
    background: var(--accent-color);
    color: #fff;
}

.module-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.module-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Documentation Styles */
.doc-content {
    padding-top: 3rem;
    padding-bottom: 4rem;
}

.doc-content h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    border-bottom: 4px solid var(--accent-color);
    display: inline-block;
    padding-bottom: 0.5rem;
}

.doc-content h2 {
    font-size: 1.75rem;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    padding-left: 1rem;
    border-left: 4px solid var(--accent-color);
}

.doc-content p,
.doc-content li {
    max-width: 750px;
    font-size: 1.05rem;
    margin-bottom: 1rem;
}

pre {
    background: var(--code-bg);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}

code {
    font-family: var(--font-heading);
    font-size: 0.9em;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    font-family: var(--font-heading);
    font-size: 0.9rem;
}

th,
td {
    padding: 1rem;
    border: 1px solid var(--border-color);
    text-align: left;
}

th {
    background-color: var(--bg-secondary);
    color: var(--accent-color);
}

/* Emulator */
#player-container {
    width: 100%;
    aspect-ratio: 4/3;
    background: #000;
    border: 4px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 2rem 0;
    box-shadow: 0 0 0 1px var(--bg-color), 0 0 0 4px var(--border-color);
}

.controls {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 1rem;
}

.control-btn {
    background: transparent;
    border: 1px solid var(--text-secondary);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    font-family: var(--font-heading);
    cursor: pointer;
    font-size: 0.85rem;
}

.control-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Footer */
footer {
    border-top: 2px solid var(--border-color);
    padding: 3rem 0;
    margin-top: auto;
    background: var(--bg-secondary);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-family: var(--font-heading);
}

.copyright {
    opacity: 0.6;
}

/* 404 Page */
.error-container {
    text-align: center;
    padding-top: 8rem;
}

.error-code {
    font-size: 8rem;
    color: var(--accent-color);
    font-family: var(--font-heading);
    line-height: 1;
    text-shadow: 4px 4px 0px #000;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    nav ul {
        gap: 1rem;
    }

    nav a {
        font-size: 0.85rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;

        /* Retro Visitor Counter */
        .counter-wrapper {
            margin-top: 2rem;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
            font-family: var(--font-mono);
        }

        .counter-label {
            font-size: 0.75rem;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .counter-display {
            background-color: #000;
            border: 4px solid #333;
            border-right-color: #444;
            border-bottom-color: #444;
            padding: 0.2rem 1rem;
            color: #00ff00;
            /* Bright Green LED */
            font-family: 'Share Tech Mono', monospace;
            /* Digital look */
            font-weight: 400;
            font-size: 1.5rem;
            letter-spacing: 2px;
            text-shadow: 0 0 10px rgba(0, 255, 0, 0.7);
            box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.8);
            min-width: 180px;
            text-align: center;
            line-height: 1;
        }
    }
}

/* Retro Visitor Counter (Desktop) */
.counter-wrapper {
    margin-top: 0;
    /* Desktop doesn't need top margin in flex container */
    display: inline-flex;
    flex-direction: column;
    align-items: flex-end;
    /* Align right on desktop */
    gap: 0.2rem;
    font-family: var(--font-mono);
}

.counter-label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.counter-display {
    background-color: #000;
    border: 3px solid #333;
    border-right-color: #555;
    border-bottom-color: #555;
    padding: 0.2rem 0.8rem;
    color: #00ff00;
    /* Bright Green LED */
    font-family: 'Share Tech Mono', monospace;
    /* Digital look */
    font-weight: 400;
    font-size: 1.4rem;
    letter-spacing: 3px;
    text-shadow: 0 0 8px rgba(0, 255, 0, 0.6);
    box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.9);
    min-width: 150px;
    text-align: center;
}

/* Emulator Dashboard Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
    align-items: start;
    margin-bottom: 2rem;
}

/* Emulator Container (Replaces old #player-container) */
.emulator-container {
    width: 100%;
    aspect-ratio: 4/3;
    background: #000;
    border: 4px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    /* For scanlines */
    overflow: hidden;
    box-shadow: 0 0 0 1px var(--bg-color), 0 0 0 4px var(--border-color);
}

/* scanline effect */
.scanlines {
    background: linear-gradient(to bottom,
            rgba(255, 255, 255, 0),
            rgba(255, 255, 255, 0) 50%,
            rgba(0, 0, 0, 0.2) 50%,
            rgba(0, 0, 0, 0.2));
    background-size: 100% 4px;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    pointer-events: none;
    z-index: 20;
}

/* Drag Overlay (Fix for squeezed text) */
.drag-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 15;
    text-align: center;
    padding: 2rem;
}

/* Grid Background */
.grid-bg {
    background-image:
        linear-gradient(rgba(255, 79, 0, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 79, 0, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    background-position: center center;
}

/* System Sidebar */
.system-sidebar {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    font-family: var(--font-mono);
    height: 100%;
    min-height: 500px;
    display: flex;
    flex-direction: column;
}

.panel-header {
    border-bottom: 2px solid var(--accent-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Console Log */
.console-log {
    flex: 1;
    background: #000;
    border: 1px solid #333;
    padding: 1rem;
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.8rem;
    color: #0f0;
    overflow-y: hidden;
    /* JS auto-scrolls */
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    opacity: 0.8;
}

.log-entry {
    margin-bottom: 0.2rem;
    word-break: break-all;
}

.log-entry.warn {
    color: #ffcc00;
}

.log-entry.err {
    color: #ff0000;
}

/* Responsive Dashboard */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .system-sidebar {
        min-height: auto;
        height: 300px;
    }
}

/* Manifesto / About Page Typography */
.manifesto {
    max-width: 700px;
    margin: 0 auto;
    font-family: 'Noto Serif TC', serif;
    color: #d0d0d0;
}

.manifesto-header {
    text-align: center;
    margin-bottom: 4rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 2rem;
    position: relative;
}

.manifesto-date {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.manifesto h1 {
    font-family: 'Cinzel', serif;
    font-size: 2.2rem;
    color: #fff;
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
    border: none;
    /* Override default doc-style */
}

.manifesto .subtitle {
    font-family: 'Cinzel', serif;
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: 0;
    border: none;
    padding-left: 0;
}

.manifesto-section {
    margin-bottom: 3.5rem;
}

.manifesto-section h3 {
    font-family: 'Cinzel', serif;
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.manifesto-section p {
    font-size: 1.15rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.quote-block {
    margin: 2rem 0;
    padding: 2rem;
    border-left: 4px solid var(--accent-color);
    background: rgba(255, 255, 255, 0.03);
    font-style: italic;
    font-size: 1.2rem;
    color: #fff;
    font-family: 'Noto Serif TC', serif;
}

.signature {
    margin-top: 3rem;
    text-align: right;
    font-family: 'Cinzel', serif;
    font-style: italic;
    color: var(--text-secondary);
}

.manifesto ul {
    list-style: none;
    padding-left: 1rem;
}

.manifesto ul li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.manifesto ul li::before {
    content: '✦';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}