* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Georgia', 'Times New Roman', serif;
    color: #1a1a1a;
    background: #fafaf8;
    line-height: 1.7;
}
.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 60px 24px;
}
h1 {
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
    line-height: 1.3;
}
.subtitle {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 48px;
}
h2 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-top: 40px;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #444;
    border-bottom: 1px solid #ddd;
    padding-bottom: 6px;
}
h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-top: 28px;
    margin-bottom: 8px;
    color: #333;
}
p { margin-bottom: 16px; }
a { color: #2a5db0; text-decoration: none; }
a:hover { text-decoration: underline; }
.paper {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 20px;
    margin-bottom: 16px;
}
.paper-title { font-weight: 600; font-size: 1.05rem; margin-bottom: 4px; }
.paper-meta { font-size: 0.9rem; color: #666; }
.paper-tldr { font-size: 0.95rem; color: #333; margin: 10px 0 8px 0; }
.paper-status {
    display: inline-block;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 3px;
    margin-top: 8px;
}
.status-published { background: #e8f5e9; color: #2e7d32; }
.status-prep { background: #fff3e0; color: #e65100; }
.contact-info { font-size: 0.95rem; color: #555; }
.footer {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid #ddd;
    font-size: 0.85rem;
    color: #595959;
}
.back-link {
    font-size: 0.9rem;
    margin-bottom: 24px;
    display: inline-block;
}
.tldr-box {
    background: #fffef5;
    border-left: 3px solid #2a5db0;
    padding: 16px 20px;
    margin: 24px 0;
    font-size: 0.98rem;
}
.tldr-box h3 { margin-top: 0; color: #2a5db0; text-transform: uppercase; font-size: 0.85rem; letter-spacing: 0.05em; }
.meta-table {
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 0.92rem;
}
.meta-table td {
    padding: 6px 12px 6px 0;
    vertical-align: top;
}
.meta-table td:first-child {
    color: #666;
    font-weight: 600;
    width: 130px;
}
.friction-matrix {
    border-collapse: collapse;
    margin: 20px 0;
}
.friction-matrix th,
.friction-matrix td {
    border: 1px solid #000;
    padding: 8px 12px;
    vertical-align: top;
}
.cite-box {
    background: #f5f5f0;
    border: 1px solid #ddd;
    padding: 12px 16px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    margin: 16px 0;
    overflow-x: auto;
    white-space: pre;
}
ul.findings { margin-left: 20px; margin-bottom: 16px; }
ul.findings li { margin-bottom: 8px; }
.footnote {
    font-size: 0.85rem;
    color: #666;
    margin-top: 12px;
    padding-top: 8px;
    border-top: 1px dashed #ccc;
}
.main-nav {
    margin-bottom: 28px;
    padding-bottom: 14px;
    border-bottom: 1px solid #ddd;
}
.main-nav .lang-switch {
    font-size: 0.85rem;
    color: #595959;
    margin-bottom: 6px;
}
.main-nav .lang-switch a,
.main-nav .lang-switch strong {
    color: #595959;
}
.main-nav .lang-switch strong {
    font-weight: 600;
    color: #333;
}
.main-nav .page-nav {
    font-size: 1rem;
    color: #444;
}
.main-nav .page-nav a {
    color: #2a5db0;
}
.main-nav .page-nav strong {
    color: #1a1a1a;
    font-weight: 600;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: #1a3a6e;
    color: #fff;
    padding: 8px 16px;
    z-index: 100;
    text-decoration: none;
}
.skip-link:focus {
    left: 0;
}