/* Budaya Lab — colours drawn from soga (batik brown) and indigo on paper */
:root {
  --paper: #fafaf8;
  --surface: #ffffff;
  --ink: #1d1a16;
  --muted: #66635e;
  --line: #e6e4df;
  --accent: #8a4b22;        /* soga brown */
  --accent-soft: #f1e3d4;
  --indigo: #2d3f63;
  --indigo-soft: #e3e8f2;
  --radius: 10px;
  --max: 1120px;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #15130f; --surface: #1d1a16; --ink: #ede6da; --muted: #a39a8c;
    --line: #353028; --accent: #d99a68; --accent-soft: #3a2a1d;
    --indigo: #a9bce0; --indigo-soft: #232c3f;
  }
  .brand-logo, .hero-logo { filter: invert(0.92); }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 var(--sans); }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.01em; }
h3 { font-size: 1.15rem; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .92em; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
main.container { padding-top: 40px; padding-bottom: 80px; min-height: 70vh; }
.muted { color: var(--muted); } .small { font-size: .875rem; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: .75rem; font-weight: 600; color: var(--muted); margin: 0 0 .5rem; }
.lede { font-size: 1.15rem; color: var(--muted); max-width: 46rem; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: var(--paper); position: sticky; top: 0; z-index: 10; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-logo { height: 46px; width: auto; }
.brand-name { font-family: var(--serif); font-size: 1.3rem; font-weight: 600; }
.site-nav { display: flex; gap: 4px; }
.site-nav a { text-decoration: none; color: var(--ink); padding: 6px 10px; border-radius: 6px; font-size: .95rem; }
.site-nav a:hover { background: var(--accent-soft); }
.site-nav a.active { color: var(--accent); font-weight: 600; }
.nav-sep { width: 1px; background: var(--line); margin: 6px 6px; }
.ext-arrow { font-size: .8em; margin-left: 2px; color: var(--muted); }
.open-strip { margin-bottom: 48px; }
.open-strip .cards { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); margin-top: 16px; }
.nav-toggle, .nav-toggle-label { display: none; }
@media (max-width: 860px) {
  .nav-toggle-label { display: block; cursor: pointer; padding: 12px 4px; }
  .nav-toggle-label span, .nav-toggle-label span::before, .nav-toggle-label span::after {
    display: block; width: 22px; height: 2px; background: var(--ink); position: relative; content: ""; }
  .nav-toggle-label span::before { position: absolute; top: -7px; }
  .nav-toggle-label span::after { position: absolute; top: 7px; }
  .nav-sep { width: auto; height: 1px; margin: 6px 0; }
  .site-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column;
    background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px 16px 16px; }
  .nav-toggle:checked ~ .site-nav { display: flex; }
}

/* Hero: logo, title and news on one row */
.hero { display: grid; grid-template-columns: 170px 1fr minmax(260px, 340px); gap: 40px; align-items: center; padding: 8px 0 40px; border-bottom: 1px solid var(--line); margin-bottom: 40px; }
.hero h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); margin-bottom: .2em; }
.hero .lede { margin: 0; }
.hero-logo { width: 100%; max-width: 170px; justify-self: center; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 20px 0 0; }
.hero-news { align-self: start; }
.hero-news .section-title { font-size: 1.1rem; margin-bottom: 4px; }
.hero-news .news-list li { grid-template-columns: 64px 1fr; font-size: .88rem; padding: 8px 0; }
.hero-news p { margin: 8px 0 0; }
.button { display: inline-block; padding: 10px 18px; border-radius: 999px; background: var(--ink); color: var(--paper); text-decoration: none; font-weight: 500; }
.button:hover { background: var(--accent); color: #fff; }
.button-ghost { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
@media (max-width: 960px) { .hero { grid-template-columns: 130px 1fr; gap: 28px; } .hero-news { grid-column: 1 / -1; } }
@media (max-width: 600px) { .hero { grid-template-columns: 1fr; } .hero-logo { max-width: 100px; justify-self: start; } }

.home-projects { margin-bottom: 48px; }
.project .more { margin-top: auto; font-size: .875rem; color: var(--accent); }

/* Projects page: one section per project, linkable as /projects/#id */
.project-full { display: grid; grid-template-columns: 320px 1fr; gap: 32px; padding: 32px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 88px; }
.project-full:first-child { padding-top: 0; }
.project-full h2 { font-size: 1.6rem; }
.project-full .anchor { color: var(--ink); text-decoration: none; }
.project-full .anchor:hover { color: var(--accent); }
.project-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--line); }
.project-summary { font-size: 1.1rem; color: var(--muted); margin-top: 0; }
@media (max-width: 760px) { .project-full { grid-template-columns: 1fr; gap: 16px; } }

/* Sections and pages */
.page-header { margin-bottom: 32px; }
.section-title { font-size: 1.4rem; margin: 40px 0 16px; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.section-title:first-child { margin-top: 0; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; gap: 6px; }
.card p { margin: 0 0 6px; }
.card-img { width: calc(100% + 44px); margin: -22px -22px 10px; border-radius: var(--radius) var(--radius) 0 0; aspect-ratio: 16/9; object-fit: cover; }
.card-link { text-decoration: none; color: var(--ink); transition: border-color .15s, transform .15s; }
.card-link:hover { border-color: var(--accent); transform: translateY(-2px); color: var(--ink); }
.card-meta { display: flex; justify-content: space-between; align-items: center; font-size: .8rem; color: var(--muted); }
.badge { font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; padding: 3px 8px; border-radius: 999px; background: var(--indigo-soft); color: var(--indigo); }
.badge-active { background: var(--accent-soft); color: var(--accent); }
.badge-award { margin-left: 6px; vertical-align: 2px; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 2px 14px; font-size: .875rem; margin: 6px 0; }
.facts dt { color: var(--muted); } .facts dd { margin: 0; }
.links { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.links a { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; font-weight: 600; text-decoration: none; border: 1px solid var(--line); border-radius: 6px; padding: 2px 8px; }
.links a:hover { border-color: var(--accent); }
.project-link { color: var(--ink); text-decoration: none; }
.project-link:hover { color: var(--accent); text-decoration: underline; }

/* Papers */
.paper-list { list-style: none; padding: 0; margin: 0; }
.paper { padding: 14px 0; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 2px; }
.paper-title { font-weight: 600; }
.paper-authors { font-size: .92rem; }
.paper-venue { font-size: .92rem; color: var(--muted); font-style: italic; }

/* News */
.news-list { list-style: none; padding: 0; margin: 0; }
.news-list li { display: grid; grid-template-columns: 76px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: .95rem; }
.news-list time { color: var(--muted); font-size: .82rem; padding-top: 2px; }
.news-list-full li { grid-template-columns: 120px 1fr; }

/* People */
.people { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.person { display: flex; gap: 16px; align-items: flex-start; }
.person h3 { margin: 0; }
.person p { margin: 2px 0; }
.person-title { color: var(--muted); font-size: .9rem; }
.person-bio { font-size: .92rem; }
.person-email { font-size: .88rem; color: var(--muted); }
.avatar { width: 88px; height: 88px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.avatar-placeholder { display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); font-family: var(--serif); font-size: 2rem; }
.people-compact .avatar { width: 56px; height: 56px; font-size: 1.3rem; }

/* Prose (Markdown pages, wiki) */
.prose { max-width: 46rem; }
.prose h2 { font-size: 1.4rem; margin-top: 2em; }
.prose table { border-collapse: collapse; width: 100%; font-size: .92rem; margin: 1em 0; display: block; overflow-x: auto; }
.prose th, .prose td { border-bottom: 1px solid var(--line); padding: 8px 10px; text-align: left; }
.prose pre { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 14px; overflow-x: auto; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0; font-size: .9rem; color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-links { display: flex; flex-direction: column; gap: 4px; text-align: right; }
@media (max-width: 600px) { .footer-links { text-align: left; } }