.nav .active{color:var(--accent);font-weight:800}.portal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding-top:40px}.portal-card{min-height:320px;padding:30px;border:1px solid var(--line);border-radius:22px;text-decoration:none;display:flex;flex-direction:column;transition:.25s}.portal-card:hover{transform:translateY(-5px);box-shadow:0 18px 48px rgba(24,40,34,.08)}.portal-card span{font-size:11px;font-weight:800;letter-spacing:.1em}.portal-card h2{font-size:34px;margin:55px 0 12px;letter-spacing:-.04em}.portal-card p{color:var(--muted);line-height:1.75}.portal-card strong{margin-top:auto}.learning-entry{background:#dfeee8}.project-entry{background:#e8ebf1}.paper-entry{background:#eee4d5}.page-hero{padding-bottom:55px}.page-hero h1{font-size:clamp(52px,8vw,92px);letter-spacing:-.06em;margin:16px 0}.page-hero>p:last-of-type{max-width:700px;color:var(--muted);font-size:17px;line-height:1.8}.topic-strip{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}.topic-strip span{padding:8px 12px;border:1px solid var(--line);border-radius:99px;background:#fff;font-size:12px}.page-content{padding-top:35px;border-top:1px solid var(--line)}.project-detail{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.project-detail span{padding:7px 9px;background:#f3f5f1;border-radius:8px;font-size:11px;color:var(--muted)}.reading-guide{display:grid;grid-template-columns:.75fr 1.25fr;gap:55px;padding:42px;border-radius:22px;background:#e9e1d4}.reading-guide h2{font-size:35px;letter-spacing:-.04em}.reading-guide>div>span,.empty-archive>span{font-size:11px;color:#876d4c;font-weight:800;letter-spacing:.1em}.reading-guide ol{margin:0;padding:0;list-style:none}.reading-guide li{padding:17px 0;border-top:1px solid rgba(70,60,45,.15)}.reading-guide li p{margin:6px 0 0;color:#70695e}.empty-archive{margin-top:20px;padding:50px;border:1px dashed #b8bdb5;border-radius:20px;text-align:center}.empty-archive h2{font-size:31px;margin:15px 0}.empty-archive p{color:var(--muted)}footer a{text-decoration:none;color:var(--muted)}@media(max-width:850px){.portal-grid{grid-template-columns:1fr}.portal-card{min-height:230px}.portal-card h2{margin-top:35px}.reading-guide{grid-template-columns:1fr}.page-hero{padding-top:62px}}@media(max-width:540px){.page-hero h1{font-size:54px}.reading-guide,.empty-archive{padding:28px}}