:root { --ink:#253038; --muted:#62717b; --line:#dce3e8; --accent:#2369a0; --green:#307c73; --paper:#f3f6f8; }
* { box-sizing:border-box; letter-spacing:0; }
html { scroll-behavior:smooth; scroll-padding-top:90px; }
body { margin:0; background:var(--paper); color:var(--ink); font:17px/1.8 "Segoe UI",Arial,sans-serif; }
body { isolation:isolate; }
.map-backdrop { position:fixed; inset:0; z-index:-1; overflow:hidden; pointer-events:none; }
.map-backdrop::before { content:""; position:absolute; inset:-240px; opacity:.15; background-image:url("assets/city-lineart.svg"); background-size:392px 224px; animation:map-drift 22s linear infinite alternate; will-change:transform; }
@keyframes map-drift { from { transform:translate3d(-35px,-25px,0); } to { transform:translate3d(65px,45px,0); } }
a { color:var(--accent); text-decoration:none; }
a:hover { text-decoration:underline; }
a:focus-visible { outline:3px solid var(--accent); outline-offset:4px; }
.wrap { width:min(1180px,calc(100% - 48px)); margin-inline:auto; }
.topbar { min-height:66px; padding:12px max(24px,calc((100% - 1180px)/2)); display:flex; align-items:center; justify-content:space-between; gap:24px; border-bottom:1px solid var(--line); background:#fffffff5; position:sticky; top:0; z-index:4; backdrop-filter:blur(12px); }
.brand { font-weight:750; font-size:20px; color:var(--ink); }
nav { display:flex; gap:26px; font-size:14px; }
nav a { color:var(--muted); }
nav a:hover { color:var(--accent); }
.hero { padding:60px 0 46px; text-align:center; }
h1 { font-size:72px; line-height:1.12; margin:0 0 24px; font-weight:800; }
h1 em { color:#245577; }
.subtitle { max-width:1010px; margin:0 auto 26px; font-size:29px; line-height:1.45; }
.authors { margin:0 auto; max-width:1030px; font-size:18px; line-height:1.9; }
.authors span { display:inline-block; margin:0 8px; white-space:nowrap; }
.affiliation.notes { margin:8px 0; }
.notes { margin:0; color:var(--muted); font-size:13px; }
sup { font-size:.7em; }
.actions { display:flex; justify-content:center; flex-wrap:wrap; gap:12px; margin-top:25px; }
.button { display:inline-flex; align-items:center; justify-content:center; min-height:42px; padding:9px 20px; border:1px solid #cdd9e2; background:white; border-radius:6px; font-size:14px; line-height:1.5; font-weight:600; box-shadow:0 2px 4px #243e5010; transition:background .15s,border-color .15s; }
.button:hover { text-decoration:none; border-color:var(--accent); background:#edf5fa; }
.button.primary { background:#263d4e; color:#fff; border-color:#263d4e; }
.button.primary:hover { background:#34556b; }
.unavailable { color:#7b868e; background:#f0f2f4; box-shadow:none; }
.section.wrap { display:block; width:100%; min-width:0; margin:0; padding:58px max(24px,calc((100% - 1180px)/2)) 68px; border-top:1px solid var(--line); }
#abstract,#method,#resources { background:rgba(255,255,255,.78); }
#dataset,#results { background:rgba(241,245,247,.66); }
#citation { background:rgba(237,243,242,.78); }
.section h2 { text-align:center; font-size:38px; line-height:1.25; font-weight:800; margin:0 0 34px; }
.section h2::after { content:""; display:block; width:42px; height:3px; background:var(--green); margin:17px auto 0; }
.prose { max-width:1020px; margin:0 auto 32px; padding:8px 26px; border-left:3px solid #a6bccc; border-right:1px solid var(--line); }
.prose p { margin:0; text-align:justify; }
figure { display:block; width:100%; min-width:0; margin:38px auto; background:#fff; border:1px solid #d6e0e6; border-radius:8px; box-shadow:0 5px 18px #233a4b0b; }
figure img { display:block; width:100%; max-width:100%; height:auto; background:#fff; }
figure > a { display:block; margin:20px; cursor:zoom-in; }
figcaption,.table-caption { color:#52616b; font-size:14px; line-height:1.8; text-align:left; overflow-wrap:break-word; }
figcaption { display:block; width:100%; margin:0; padding:16px 22px; border-top:1px solid #e4eaee; background:#f9fbfc; border-radius:0 0 8px 8px; }
figcaption strong,.table-caption strong { color:#304954; }
.pdf-table { margin:36px auto; }
.table-caption { margin:0; padding:15px 22px; background:#f9fbfc; border-bottom:1px solid #e4eaee; border-radius:8px 8px 0 0; }
.compact-table { max-width:740px; }
.stages { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:22px; margin:36px auto; }
.method-steps { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:22px; margin-top:32px; }
article { min-width:0; border:1px solid var(--line); border-top:3px solid #7299b2; border-radius:6px; background:#fff; padding:24px; }
article:nth-child(2) { border-top-color:#79a69a; }
article:nth-child(3) { border-top-color:#b29382; }
article:nth-child(4) { border-top-color:#83929d; }
.stage-label { color:var(--accent); font-size:12px; font-weight:700; }
h3 { font-size:20px; line-height:1.4; margin:9px 0 12px; font-weight:700; }
article p { font-size:15px; line-height:1.8; margin:0; color:#566570; }
.resources { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:22px; }
.resources > a { padding:23px; border:1px solid var(--line); border-radius:6px; background:#f9fbfc; transition:background .15s; }
.resources > a:hover { background:#eaf2f6; text-decoration:none; }
.resources strong,.resources span { display:block; }
.resources span { color:var(--muted); font-size:14px; margin-top:5px; }
pre { margin:0; padding:26px; overflow:auto; border:1px solid #d3deda; border-radius:6px; background:#fff; color:#354750; font:14px/1.85 Consolas,monospace; }
footer { padding:28px 0; display:flex; justify-content:space-between; color:var(--muted); font-size:13px; }
.reveal-ready [data-reveal] { opacity:0; transform:translate3d(0,24px,0); transition:opacity .7s ease,transform .7s cubic-bezier(.22,1,.36,1); transition-delay:var(--reveal-delay,0ms); will-change:opacity,transform; }
.reveal-ready [data-reveal].is-resetting { transition:none; }
.reveal-ready [data-reveal].is-visible { opacity:1; transform:translate3d(0,0,0); }
@media(max-width:850px) { .method-steps { grid-template-columns:1fr; } .resources { grid-template-columns:repeat(2,minmax(0,1fr)); } h1 { font-size:60px; } .subtitle { font-size:25px; } }
@media(max-width:600px) {
.wrap { width:calc(100% - 32px); } body { font-size:16px; }
.map-backdrop::before { background-size:294px 168px; opacity:.12; }
.topbar { padding:12px 16px; flex-direction:column; gap:8px; position:static; }
nav { gap:16px; font-size:12px; flex-wrap:wrap; justify-content:center; }
.hero { padding:34px 0 30px; } h1 { font-size:40px; margin-bottom:18px; } .subtitle { font-size:21px; }
.authors { font-size:16px; } .section.wrap { padding:36px 16px 42px; }
.section h2 { font-size:30px; margin-bottom:26px; }
.prose { padding:4px 14px; border-right:0; } .prose p { text-align:left; }
.stages,.resources { grid-template-columns:1fr; gap:16px; } article { padding:20px; }
figure { margin:26px auto; } figure > a { margin:8px; }
figcaption,.table-caption { font-size:13px; padding:13px 15px; }
.button { padding:9px 14px; }
pre { padding:18px; font-size:12px; }
footer { flex-direction:column; gap:6px; }
}
@media(prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } .button,.resources > a { transition:none; } .map-backdrop::before { animation:none; will-change:auto; } .reveal-ready [data-reveal] { opacity:1; transform:none; transition:none; will-change:auto; } }
@media print { .map-backdrop { display:none; } }