:root {
    --bg: #0d0d10;
    --bg-soft: #131316;
    --bg-elev: #1a1a1e;
    --fg: #c8c8cf;
    --fg-dim: #8a8a95;
    --fg-faint: #56565f;
    --accent: #e8e8ee;
    --border: rgba(255, 255, 255, 0.06);
    --border-strong: rgba(255, 255, 255, 0.14);
    --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
    --sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    --mono: "JetBrains Mono", "SF Mono", "Consolas", monospace;
}

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

html,
body {
    min-height: 100vh;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--sans);
    font-size: 15px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.025;
    background-image:
        radial-gradient(circle at 20% 30%, #fff 0.5px, transparent 1px),
        radial-gradient(circle at 70% 60%, #fff 0.5px, transparent 1px),
        radial-gradient(circle at 40% 85%, #fff 0.5px, transparent 1px);
    background-size: 140px 140px, 200px 200px, 100px 100px;
    z-index: 0;
}

a {
    color: var(--fg);
    text-decoration: none;
    transition: color 0.15s;
}

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

.site-header {
    padding: 24px 40px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    position: relative;
    z-index: 2;
}

.brand {
    font-family: var(--serif);
    font-size: 16px;
    letter-spacing: 6px;
    color: var(--accent);
    padding-left: 16px;
    position: relative;
}

.brand::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 2px;
    height: 16px;
    transform: translateY(-50%);
    background: linear-gradient(to bottom, transparent, var(--accent), transparent);
}

.tagline {
    font-size: 10px;
    letter-spacing: 4px;
    color: var(--fg-faint);
    text-transform: uppercase;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 72px 40px 96px;
    position: relative;
    z-index: 2;
}

.page-title {
    font-family: var(--serif);
    font-size: 28px;
    font-weight: 400;
    letter-spacing: 6px;
    color: var(--accent);
    margin-bottom: 16px;
}

.page-desc {
    font-family: var(--serif);
    font-size: 14px;
    line-height: 2;
    color: var(--fg-dim);
    margin-bottom: 48px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border);
}

.category {
    margin-bottom: 48px;
}

.category-title {
    font-family: var(--serif);
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 6px;
    color: var(--fg-dim);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
    position: relative;
}

.category-title::before {
    content: "◆";
    color: var(--fg-faint);
    font-size: 8px;
    margin-right: 10px;
    vertical-align: middle;
}

.item-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.item {
    display: block;
    padding: 16px 20px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-soft);
    transition: border-color 0.2s, background 0.2s, padding-left 0.2s;
}

.item:hover {
    border-color: var(--border-strong);
    background: var(--bg-elev);
    padding-left: 24px;
}

.item.effective {
    border-color: rgba(123, 217, 165, 0.25);
}

.item-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 6px;
}

.item-title {
    font-family: var(--serif);
    font-size: 15px;
    letter-spacing: 1px;
    color: var(--fg);
}

.item-badge {
    font-size: 10px;
    letter-spacing: 0.15em;
    padding: 2px 8px;
    border-radius: 100px;
    color: #7bd9a5;
    background: rgba(123, 217, 165, 0.1);
    white-space: nowrap;
}

.item-badge.archived {
    color: var(--fg-faint);
    background: var(--bg);
}

.item-meta {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 11px;
    color: var(--fg-faint);
    letter-spacing: 0.05em;
}

.mono {
    font-family: var(--mono);
}

.state {
    color: var(--fg-faint);
    font-size: 13px;
    font-family: var(--serif);
    letter-spacing: 2px;
    padding: 48px 0;
    text-align: center;
}

.site-footer {
    padding: 40px;
    text-align: center;
    color: var(--fg-faint);
    font-size: 11px;
    letter-spacing: 2px;
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 2;
}

@media (max-width: 720px) {
    .site-header {
        padding: 20px;
    }

    .brand {
        font-size: 14px;
        letter-spacing: 4px;
    }

    .container {
        padding: 48px 20px 64px;
    }

    .page-title {
        font-size: 22px;
        letter-spacing: 4px;
    }

    .item {
        padding: 12px 14px;
    }

    .item-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}