@import url('https://cdn.jsdelivr.net/gh/nicedoc/oat@latest/dist/oat.min.css');
@import url('https://fonts.googleapis.com/css2?family=Space+Mono:ital,wght@0,400;0,700;1,400&family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;1,9..40,400&display=swap');

:root {
    --bg: #0a0a08;
    --fg: #c8c4b8;
    --accent: #7ba05b;
    --accent-dim: #4a6b35;
    --muted: #5a5848;
    --surface: #141410;
    --border: #2a2a22;
    --warn: #c4873b;
}

[data-theme="light"] {
    --bg: #f4f1eb;
    --fg: #2a2a22;
    --accent: #4a6b35;
    --accent-dim: #7ba05b;
    --muted: #7a7668;
    --surface: #eae6dd;
    --border: #d0cbbf;
    --warn: #a06a28;
}

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

.theme-toggle {
    position: fixed;
    top: 1.25rem;
    right: 1.25rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: var(--fg);
    color: var(--bg);
    border: 1px solid var(--fg);
    padding: 0.35rem 0.65rem;
    cursor: pointer;
    transition: color 0.2s, background 0.2s, border-color 0.2s;
    z-index: 100;
}

.theme-toggle:hover { opacity: 0.8; }

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.7;
    max-width: 720px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    font-size: 16px;
}

header {
    border-bottom: 1px solid var(--border);
    padding-bottom: 1.5rem;
    margin-bottom: 3rem;
}

.site-title {
    font-family: 'Space Mono', monospace;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.site-title a { color: var(--accent); text-decoration: none; }

.site-subtitle {
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    color: var(--muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

nav {
    margin-top: 1rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

nav a {
    color: var(--muted);
    text-decoration: none;
    margin-right: 1.5rem;
    transition: color 0.2s;
}

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

h1 {
    font-family: 'Space Mono', monospace;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--fg);
    margin-bottom: 1rem;
}

h2 {
    font-family: 'Space Mono', monospace;
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 3rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

h3 {
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--fg);
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

p { margin-bottom: 1.25rem; color: var(--fg); opacity: 0.85; }

.intro { font-size: 1.1rem; line-height: 1.8; margin-bottom: 2.5rem; opacity: 0.9; }

a.source {
    color: var(--accent-dim);
    text-decoration: none;
    border-bottom: 1px dotted var(--accent-dim);
    font-size: 0.85em;
}

a.source:hover { color: var(--accent); border-color: var(--accent); }

.stat-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
    margin: 2rem 0;
}

.stat {
    border: 1px solid var(--border);
    padding: 1.25rem 1rem;
    background: var(--surface);
}

.stat-number {
    font-family: 'Space Mono', monospace;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--warn);
    display: block;
}

.stat-label {
    font-family: 'Space Mono', monospace;
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--muted);
    margin-top: 0.35rem;
    display: block;
}

.article-list { list-style: none; padding: 0; }

.article-list li {
    border-bottom: 1px solid var(--border);
    padding: 1.25rem 0;
}

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

.article-date {
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    color: var(--muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.25rem;
}

.article-title {
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--fg);
    text-decoration: none;
    line-height: 1.4;
}

.article-title:hover { color: var(--accent); }

.article-excerpt {
    font-size: 0.85rem;
    color: var(--muted);
    margin-top: 0.35rem;
    line-height: 1.6;
}

.dithered-bar {
    width: 100%;
    height: 4px;
    margin: 3rem 0;
    background: repeating-linear-gradient(90deg, var(--accent-dim) 0px, var(--accent-dim) 2px, transparent 2px, transparent 4px);
    opacity: 0.5;
}

.material-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--border);
    margin: 2rem 0;
}

.material-cell { background: var(--surface); padding: 1.25rem; }

.material-name {
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.material-desc { font-size: 0.8rem; color: var(--muted); line-height: 1.5; }

.recycling-code {
    font-family: 'Space Mono', monospace;
    font-size: 0.6rem;
    color: var(--warn);
    opacity: 0.7;
}

.back-link {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    color: var(--accent-dim);
    text-decoration: none;
    display: inline-block;
    margin-bottom: 2rem;
}

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

.ref {
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    color: var(--muted);
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.ref a { color: var(--accent-dim); text-decoration: none; }
.ref a:hover { color: var(--accent); }

footer {
    margin-top: 4rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    color: var(--muted);
    letter-spacing: 0.05em;
}

footer a { color: var(--accent-dim); text-decoration: none; }
footer a:hover { color: var(--accent); }

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 1rem;
}

.page-weight {
    text-align: right;
    font-family: 'Space Mono', monospace;
    font-size: 0.6rem;
    color: var(--muted);
    margin-top: 2rem;
    opacity: 0.5;
}

@media (max-width: 600px) {
    .stat-row { grid-template-columns: 1fr; }
    .material-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    h1 { font-size: 1.4rem; }
}