:root{--bg:#eef3f0;--ink:#15211e;--sub:#4d5a56;--teal:#0d8f7c;--teal-deep:#0a6f61;--mint:#e2f0ea;--mint-line:#cfe5db;--card:#ffffff;--line:#e3e9e5;--mono:'JetBrains Mono',ui-monospace,monospace;--sans:'Instrument Sans',system-ui,sans-serif}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);font-size:15.5px;line-height:1.65;background:var(--bg);background-image:linear-gradient(var(--mint-line) 1px,transparent 1px),linear-gradient(90deg,var(--mint-line) 1px,transparent 1px);background-size:56px 56px;background-position:center top;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;background:radial-gradient(70% 60% at 75% 20%,rgba(126,220,196,0.25),transparent 70%),radial-gradient(60% 50% at 10% 90%,rgba(126,220,196,0.18),transparent 70%);pointer-events:none}
a{color:var(--teal);text-decoration:none}
a:hover{color:var(--teal-deep)}
.topbar{position:sticky;top:0;z-index:50;display:flex;justify-content:space-between;align-items:center;padding:18px 28px}
.back{display:inline-flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:9px 20px;font-size:13.5px;color:var(--ink);box-shadow:0 2px 10px rgba(21,33,30,0.06)}
.back:hover{color:var(--teal)}
.pager{display:flex;align-items:center;gap:14px;font-family:var(--mono);font-size:12px;letter-spacing:0.25em;color:var(--sub)}
.pager a{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--card);border:1px solid var(--line);color:var(--ink);box-shadow:0 2px 10px rgba(21,33,30,0.06)}
.pager a:hover{color:var(--teal)}
.shell{position:relative;max-width:1180px;margin:0 auto;padding:28px 24px 90px;display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:36px;align-items:start}
.story{min-width:0}
.ptag{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;letter-spacing:0.22em;color:var(--teal-deep);background:var(--mint);border:1px solid var(--mint-line);border-radius:999px;padding:7px 16px}
.ptag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal)}
.story h1{font-size:clamp(2.6rem,6vw,4rem);font-weight:700;letter-spacing:-0.03em;margin-top:18px;line-height:1.05}
.subline{color:var(--sub);margin-top:12px;font-size:15px}
.heroimg{margin-top:30px;background:var(--mint);border:1px solid var(--mint-line);border-radius:16px;padding:14px;position:relative}
.heroimg .imgwrap{border-radius:10px;overflow:hidden;background:#fff;line-height:0;max-height:520px}
.heroimg img{width:100%;display:block;object-fit:cover;object-position:top}
.heroimg .tagpill{position:absolute;left:26px;bottom:26px;font-family:var(--mono);font-size:10.5px;letter-spacing:0.25em;background:rgba(255,255,255,0.92);border-radius:999px;padding:7px 15px;color:var(--ink)}
.thesis{font-size:clamp(1.15rem,2.2vw,1.45rem);line-height:1.5;font-weight:500;letter-spacing:-0.01em;margin-top:34px}
.slabel{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:11.5px;letter-spacing:0.28em;color:var(--teal-deep);text-transform:uppercase}
.slabel::before{content:"●";font-size:8px}
.sec{margin-top:44px}
.sec-border{border-left:3px solid var(--teal);padding-left:22px}
.sec-border p{color:var(--sub);margin-top:14px;max-width:62ch}
.card{background:var(--card);border-radius:14px;padding:26px 28px;box-shadow:0 10px 34px rgba(21,33,30,0.07)}
.card p{color:var(--sub);margin-top:14px}
.tint{background:var(--mint);border:1px solid var(--mint-line);border-radius:4px;padding:26px 28px}
.tint p{color:var(--sub);margin-top:14px}
.duo{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:44px}
.decisions{list-style:none;margin-top:18px}
.decisions li{display:flex;gap:16px;padding:9px 0;color:var(--sub)}
.decisions li b{font-family:var(--mono);font-size:11.5px;color:var(--teal);font-weight:500;letter-spacing:0.1em;padding-top:4px;flex:none}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chips span{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:8px 15px;font-size:13.5px;color:var(--sub);box-shadow:0 2px 8px rgba(21,33,30,0.04)}
.figcard{margin-top:20px;background:var(--card);border-radius:14px;padding:12px;box-shadow:0 10px 34px rgba(21,33,30,0.07)}
.figcard .imgwrap{border-radius:9px;overflow:hidden;background:#fff;line-height:0}
.figcard img{width:100%;display:block}
.figcard figcaption{font-family:var(--mono);font-size:10.5px;letter-spacing:0.2em;text-transform:uppercase;color:var(--sub);padding:12px 8px 4px}
/* rail */
.rail{position:sticky;top:86px;display:flex;flex-direction:column;gap:18px}
.rcard{background:var(--card);border-radius:16px;padding:22px 24px;box-shadow:0 10px 34px rgba(21,33,30,0.07)}
.rlabel{font-family:var(--mono);font-size:11px;letter-spacing:0.28em;color:var(--teal-deep);text-transform:uppercase;margin-bottom:6px}
.rrow{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:11px 0;border-bottom:1px solid var(--line)}
.rrow:last-child{border-bottom:0;padding-bottom:0}
.rrow .rk{font-family:var(--mono);font-size:10.5px;letter-spacing:0.2em;text-transform:uppercase;color:var(--sub)}
.rrow .rv{font-weight:600;text-align:right;font-size:14px}
.rrow .rv.hl{color:var(--teal);font-family:var(--mono);font-size:12px;letter-spacing:0.12em}
.stack{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.stack span{font-family:var(--mono);font-size:10.5px;letter-spacing:0.16em;text-transform:uppercase;border:1px solid var(--line);border-radius:999px;padding:7px 13px;color:var(--sub)}
.nextcard{display:flex;justify-content:space-between;align-items:center;gap:14px;color:var(--ink)}
.nextcard:hover .nname{color:var(--teal)}
.nextcard .nname{font-size:20px;font-weight:700;letter-spacing:-0.01em;margin-top:4px;transition:color .2s}
.nextcard .arr{font-size:20px;color:var(--teal)}
@media (max-width:960px){.shell{grid-template-columns:1fr}.rail{position:static}.duo{grid-template-columns:1fr}}