/* Authorship Library - Dark Forest Aesthetic

   The library exists as a clearing in the dark forest of the internet.
   Citations are nodes of light - knowledge preserved against entropy.
   Permacomputing: minimal, durable, intentional.
*/

@font-face {
    font-family: 'Forest Mono';
    src: local('IBM Plex Mono'), local('Consolas'), local('Monaco');
}

:root {
    /* The forest floor - deep, rich darkness */
    --bg-void: #0a0c0f;
    --bg-forest: #0d1117;
    --bg-clearing: #131920;
    --bg-moss: #1a2332;

    /* Bioluminescence - the light that guides */
    --glow-primary: #58a6ff;
    --glow-soft: #388bfd;
    --glow-amber: #d29922;
    --glow-ember: #f85149;
    --glow-moss: #3fb950;
    --glow-violet: #a371f7;

    /* The mist between trees */
    --text-bright: #e6edf3;
    --text-muted: #8b949e;
    --text-dim: #484f58;
    --text-shadow: #21262d;

    /* Boundaries and paths */
    --border-subtle: #21262d;
    --border-visible: #30363d;
    --border-glow: rgba(88, 166, 255, 0.4);

    /* Canonical texts glow like ancient runes */
    --canonical-glow: #f0883e;
    --canonical-bg: rgba(240, 136, 62, 0.1);

    /* The network pulses */
    --node-citation: var(--glow-primary);
    --node-author: var(--glow-violet);
    --node-tag: var(--glow-moss);
    --node-school: var(--glow-amber);
}

/* Light mode - the forest at dawn */
@media (prefers-color-scheme: light) {
    :root {
        --bg-void: #f6f8fa;
        --bg-forest: #ffffff;
        --bg-clearing: #f6f8fa;
        --bg-moss: #eaeef2;

        --text-bright: #1f2328;
        --text-muted: #656d76;
        --text-dim: #8b949e;
        --text-shadow: #d0d7de;

        --border-subtle: #d0d7de;
        --border-visible: #d0d7de;

        --glow-primary: #0969da;
        --glow-soft: #218bff;
    }
}

* {
    box-sizing: border-box;
}

html {
    font-size: 15px;
}

body {
    font-family: 'Forest Mono', 'IBM Plex Mono', Consolas, Monaco, monospace;
    background: var(--bg-void);
    color: var(--text-bright);
    line-height: 1.7;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;

    /* Subtle texture like paper or bark */
    background-image:
        radial-gradient(ellipse at 20% 30%, rgba(88, 166, 255, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(163, 113, 247, 0.02) 0%, transparent 50%);
}

/* Selection styling */
::selection {
    background: var(--glow-primary);
    color: var(--bg-void);
}

/* Links - paths through the forest */
a {
    color: var(--glow-primary);
    text-decoration: none;
    transition: all 0.2s ease;
    border-bottom: 1px solid transparent;
}

a:hover {
    color: var(--glow-soft);
    border-bottom-color: var(--glow-soft);
}

/* === NAVIGATION - The Canopy === */
.navbar {
    background: var(--bg-forest);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
}

.nav-brand a {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-bright);
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-brand a::before {
    content: '◈';
    color: var(--glow-primary);
    font-size: 1.2rem;
}

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

.nav-links a {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.25rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
}

.nav-links a:hover {
    color: var(--text-bright);
    border-bottom-color: var(--glow-primary);
}

.nav-auth {
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
    background: var(--bg-clearing);
    border: 1px solid var(--border-subtle);
    border-radius: 3px;
    color: var(--text-muted);
}

/* === CONTAINER - The Clearing === */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    flex: 1;
}

/* === HERO - The Heart of the Forest === */
.hero {
    text-align: center;
    padding: 3rem 0 4rem;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(88, 166, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero h1 {
    font-size: 1.75rem;
    font-weight: 400;
    margin-bottom: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-bright);
}

.hero p {
    color: var(--text-muted);
    font-size: 0.9rem;
    max-width: 500px;
    margin: 0 auto;
}

/* === STATS - Vital Signs of the Library === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: var(--bg-forest);
    border: 1px solid var(--border-subtle);
    padding: 1.25rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--glow-primary), transparent);
    opacity: 0.5;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 300;
    color: var(--glow-primary);
    font-variant-numeric: tabular-nums;
}

.stat-label {
    color: var(--text-dim);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: 0.25rem;
}

/* === HOME GRID === */
.home-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.home-section {
    background: var(--bg-forest);
    border: 1px solid var(--border-subtle);
    padding: 1.5rem;
}

.home-section h2 {
    margin: 0 0 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-subtle);
}

/* === CITATION LIST - Nodes in the Network === */
.citation-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.citation-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-subtle);
    transition: all 0.2s ease;
}

.citation-list li:last-child {
    border-bottom: none;
}

.citation-list li:hover {
    padding-left: 0.5rem;
    border-left: 2px solid var(--glow-primary);
    margin-left: -0.5rem;
}

.citation-list a {
    color: var(--text-bright);
    font-size: 0.9rem;
}

.citation-meta {
    display: block;
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-top: 0.25rem;
    font-variant-numeric: tabular-nums;
}

/* === TAGS - Connections in the Mycelium === */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--bg-clearing);
    padding: 0.3rem 0.65rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
    transition: all 0.2s ease;
}

.tag:hover {
    background: var(--bg-moss);
    color: var(--text-bright);
    border-color: var(--glow-primary);
    text-decoration: none;
}

.tag-school {
    border-color: var(--glow-amber);
    color: var(--glow-amber);
}

.tag-school:hover {
    background: rgba(210, 153, 34, 0.1);
    border-color: var(--glow-amber);
}

.tag-canonical {
    background: var(--canonical-bg);
    border-color: var(--canonical-glow);
    color: var(--canonical-glow);
}

.tag-canonical::before {
    content: '✦';
    font-size: 0.65rem;
}

.tag-remove {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    padding: 0;
    margin-left: 0.25rem;
    opacity: 0.5;
    font-size: 0.9rem;
    line-height: 1;
}

.tag-remove:hover {
    opacity: 1;
    color: var(--glow-ember);
}

/* === BUTTONS - Actions in the Dark === */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-clearing);
    color: var(--text-bright);
    border: 1px solid var(--border-visible);
    cursor: pointer;
    font-size: 0.8rem;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.2s ease;
}

.btn:hover {
    background: var(--bg-moss);
    border-color: var(--glow-primary);
    color: var(--glow-primary);
    text-decoration: none;
}

.btn-primary {
    background: var(--glow-primary);
    border-color: var(--glow-primary);
    color: var(--bg-void);
}

.btn-primary:hover {
    background: var(--glow-soft);
    border-color: var(--glow-soft);
    color: var(--bg-void);
}

.btn-small {
    padding: 0.3rem 0.6rem;
    font-size: 0.7rem;
}

/* === FORMS - Inputs to the System === */
.search-form {
    display: flex;
    gap: 0.5rem;
}

.search-input {
    flex: 1;
    padding: 0.6rem 1rem;
    background: var(--bg-forest);
    border: 1px solid var(--border-visible);
    color: var(--text-bright);
    font-size: 0.9rem;
    font-family: inherit;
    transition: all 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--glow-primary);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

.search-input::placeholder {
    color: var(--text-dim);
}

.search-page-form {
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.filter-bar {
    background: var(--bg-forest);
    border: 1px solid var(--border-subtle);
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.filter-form {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-form select {
    padding: 0.5rem 0.75rem;
    background: var(--bg-clearing);
    border: 1px solid var(--border-visible);
    color: var(--text-bright);
    font-family: inherit;
    font-size: 0.8rem;
    cursor: pointer;
}

.filter-form select:focus {
    outline: none;
    border-color: var(--glow-primary);
}

/* === TABLES - The Index === */
.citation-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-forest);
    font-size: 0.85rem;
}

.citation-table th,
.citation-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-subtle);
}

.citation-table th {
    background: var(--bg-clearing);
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.citation-table tr:hover td {
    background: var(--bg-clearing);
}

.citation-table td:first-child {
    border-left: 2px solid transparent;
}

.citation-table tr:hover td:first-child {
    border-left-color: var(--glow-primary);
}

/* === BADGES === */
.badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-type {
    background: var(--bg-moss);
    color: var(--glow-moss);
    border: 1px solid var(--glow-moss);
}

/* === FINGERPRINT - The Unique Signature === */
.fingerprint {
    font-family: inherit;
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 0.5px;
}

.fingerprint-full {
    display: block;
    font-family: inherit;
    background: var(--bg-clearing);
    border: 1px solid var(--border-subtle);
    padding: 1rem;
    word-break: break-all;
    font-size: 0.8rem;
    color: var(--glow-primary);
}

/* === CITATION DETAIL - A Node Examined === */
.citation-detail {
    max-width: 800px;
}

.citation-detail header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.citation-detail h1 {
    margin: 0.5rem 0;
    font-size: 1.4rem;
    font-weight: 400;
    line-height: 1.4;
}

.citation-detail .authors {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.citation-detail section {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.citation-detail section:last-of-type {
    border-bottom: none;
}

.citation-detail h3 {
    margin: 0 0 0.75rem;
    color: var(--text-dim);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.tag-add, .school-add {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    align-items: center;
}

.tag-add input, .school-add input {
    padding: 0.4rem 0.75rem;
    background: var(--bg-clearing);
    border: 1px solid var(--border-visible);
    color: var(--text-bright);
    font-family: inherit;
    font-size: 0.85rem;
}

.tag-add input:focus, .school-add input:focus {
    outline: none;
    border-color: var(--glow-primary);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    accent-color: var(--canonical-glow);
}

/* === PAGINATION - Navigation Through Time === */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-subtle);
}

.page-info {
    color: var(--text-dim);
    font-size: 0.8rem;
    font-variant-numeric: tabular-nums;
}

/* === SEARCH RESULTS === */
.results-count {
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

.search-results {
    list-style: none;
    padding: 0;
}

.search-result {
    background: var(--bg-forest);
    border: 1px solid var(--border-subtle);
    padding: 1.25rem;
    margin-bottom: 1rem;
    transition: all 0.2s ease;
}

.search-result:hover {
    border-color: var(--glow-primary);
    border-left-width: 3px;
}

.search-result h3 {
    margin: 0 0 0.5rem;
    font-size: 1rem;
    font-weight: 400;
}

.result-meta {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
}

.result-abstract {
    color: var(--text-dim);
    font-size: 0.85rem;
    line-height: 1.6;
}

/* === TAGS PAGE === */
.tags-page {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.tag-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-forest);
    border: 1px solid var(--border-subtle);
    padding: 1rem;
    transition: all 0.2s ease;
}

.tag-card:hover {
    border-color: var(--glow-primary);
    text-decoration: none;
}

.tag-name {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
    color: var(--text-bright);
}

.tag-count {
    font-size: 0.75rem;
    color: var(--text-dim);
    font-variant-numeric: tabular-nums;
}

/* === SCHOOLS PAGE === */
.schools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.school-card {
    background: var(--bg-forest);
    border: 1px solid var(--border-subtle);
    padding: 1.25rem;
    position: relative;
}

.school-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--glow-amber);
    opacity: 0.6;
}

.school-card h3 {
    margin: 0 0 0.5rem;
    font-size: 1rem;
    font-weight: 400;
    color: var(--glow-amber);
}

.school-description {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.school-stats {
    display: flex;
    gap: 1.5rem;
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: 1rem;
    font-variant-numeric: tabular-nums;
}

.school-actions {
    display: flex;
    gap: 0.5rem;
}

.add-school-form {
    background: var(--bg-forest);
    border: 1px solid var(--border-subtle);
    padding: 1.25rem;
    margin-bottom: 2rem;
}

.add-school-form form {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.add-school-form input {
    padding: 0.5rem 0.75rem;
    background: var(--bg-clearing);
    border: 1px solid var(--border-visible);
    color: var(--text-bright);
    font-family: inherit;
}

/* === LOGIN === */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.login-card {
    background: var(--bg-forest);
    border: 1px solid var(--border-subtle);
    padding: 2.5rem;
    width: 100%;
    max-width: 380px;
    text-align: center;
}

.login-card h1 {
    font-size: 1rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.login-form {
    margin: 2rem 0;
}

.form-group {
    margin-bottom: 1rem;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-clearing);
    border: 1px solid var(--border-visible);
    color: var(--text-bright);
    font-family: inherit;
}

.form-group input:focus {
    outline: none;
    border-color: var(--glow-primary);
}

.login-note {
    font-size: 0.8rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* === FLASH MESSAGES === */
.flash-messages {
    margin-bottom: 1.5rem;
}

.flash {
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    border-left: 3px solid;
}

.flash-success {
    background: rgba(63, 185, 80, 0.1);
    border-color: var(--glow-moss);
    color: var(--glow-moss);
}

.flash-error {
    background: rgba(248, 81, 73, 0.1);
    border-color: var(--glow-ember);
    color: var(--glow-ember);
}

.flash-warning {
    background: rgba(210, 153, 34, 0.1);
    border-color: var(--glow-amber);
    color: var(--glow-amber);
}

.flash-info {
    background: rgba(88, 166, 255, 0.1);
    border-color: var(--glow-primary);
    color: var(--glow-primary);
}

/* === UTILITIES === */
.muted {
    color: var(--text-muted);
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-dim);
}

.empty-state::before {
    content: '∅';
    display: block;
    font-size: 2rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.page-description {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.no-results {
    text-align: center;
    padding: 2rem;
    color: var(--text-dim);
}

/* === FOOTER - The Forest Floor === */
.footer {
    background: var(--bg-forest);
    border-top: 1px solid var(--border-subtle);
    padding: 1.25rem 1.5rem;
    text-align: center;
    color: var(--text-dim);
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

.footer a {
    color: var(--text-muted);
}

.footer::before {
    content: '◇';
    display: block;
    margin-bottom: 0.75rem;
    color: var(--border-visible);
}

/* === GRAPH PAGE - The Network Visualization === */
.graph-container {
    width: 100%;
    height: 70vh;
    border: 1px solid var(--border-subtle);
    background: var(--bg-forest);
    overflow: hidden;
    position: relative;
}

.graph-container::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(88, 166, 255, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(163, 113, 247, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.graph-controls {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.graph-controls label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.graph-controls select {
    padding: 0.4rem 0.6rem;
    background: var(--bg-clearing);
    border: 1px solid var(--border-visible);
    color: var(--text-bright);
    font-family: inherit;
    font-size: 0.8rem;
    margin-left: 0.5rem;
}

.node {
    cursor: pointer;
}

.node circle {
    stroke: var(--bg-void);
    stroke-width: 2px;
    transition: all 0.2s ease;
}

.node:hover circle {
    stroke: var(--text-bright);
    stroke-width: 3px;
}

.node text {
    font-size: 9px;
    fill: var(--text-muted);
    pointer-events: none;
    font-family: inherit;
}

.link {
    stroke: var(--border-visible);
    stroke-opacity: 0.4;
}

.link.canonical {
    stroke: var(--canonical-glow);
    stroke-width: 2px;
    stroke-opacity: 0.8;
}

.node-author circle { fill: var(--node-author); }
.node-tag circle { fill: var(--node-tag); }
.node-school circle { fill: var(--node-school); }
.node-citation circle { fill: var(--node-citation); }
.node-canonical circle {
    fill: var(--canonical-glow);
    filter: drop-shadow(0 0 4px var(--canonical-glow));
}

.tooltip {
    position: absolute;
    padding: 0.6rem 0.9rem;
    background: var(--bg-void);
    border: 1px solid var(--border-visible);
    font-size: 0.75rem;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease;
    z-index: 1000;
    max-width: 250px;
}

.legend {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.legend-color {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .navbar {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }

    .nav-links {
        justify-content: center;
    }

    .container {
        padding: 1.5rem 1rem;
    }

    .hero h1 {
        font-size: 1.4rem;
    }

    .filter-form {
        flex-direction: column;
        align-items: stretch;
    }

    .citation-table {
        font-size: 0.8rem;
    }

    .citation-table th:nth-child(4),
    .citation-table td:nth-child(4),
    .citation-table th:nth-child(5),
    .citation-table td:nth-child(5) {
        display: none;
    }

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

/* === PRINT STYLES === */
@media print {
    body {
        background: white;
        color: black;
    }

    .navbar, .footer, .btn, .tag-remove {
        display: none;
    }

    .container {
        max-width: none;
    }

    a {
        color: black;
        text-decoration: underline;
    }
}