:root{color-scheme:dark;--bg:#071d23;--panel:#0d2b32;--ink:#ecfffb;--muted:#a6cfca;--line:#1e545b;--aqua:#38e0cc;--coral:#ff7d78;--gold:#ffd166;--reef:#15535c;--deep:#051317;--ok:#6ee7a8;--warn:#ffb86b}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;background:radial-gradient(circle at 20% 0%,#174b56 0,#071d23 38%,#041014 100%);color:var(--ink);line-height:1.5}a{color:inherit}.topbar{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:18px;justify-content:space-between;padding:14px clamp(16px,4vw,44px);background:rgba(5,19,23,.86);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.08)}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800}.mark{display:grid;place-items:center;width:38px;height:38px;border-radius:14px;background:linear-gradient(135deg,var(--aqua),var(--coral));color:#061417}nav{display:flex;gap:14px;flex-wrap:wrap}nav a{font-size:.94rem;color:var(--muted);text-decoration:none}.ghost,.secondary,.primary{border:0;border-radius:999px;padding:11px 16px;font-weight:800;cursor:pointer}.ghost,.secondary{background:#123941;color:var(--ink);border:1px solid var(--line)}.primary{background:linear-gradient(135deg,var(--aqua),#8ef7d0);color:#042126}.primary:disabled,.secondary:disabled{opacity:.45;cursor:not-allowed}main{width:min(1180px,94vw);margin:24px auto 36px}.panel{background:linear-gradient(180deg,rgba(13,43,50,.92),rgba(7,29,35,.94));border:1px solid rgba(255,255,255,.1);border-radius:28px;padding:clamp(18px,3vw,32px);box-shadow:0 24px 80px rgba(0,0,0,.25);margin:18px 0}.hero,.grid-two{display:grid;grid-template-columns:1.35fr .85fr;gap:26px;align-items:center}.eyebrow{text-transform:uppercase;letter-spacing:.13em;color:var(--aqua);font-size:.78rem;font-weight:900;margin:.2rem 0 .7rem}h1,h2,h3{line-height:1.08;margin:.1rem 0 .65rem}h1{font-size:clamp(2.2rem,6vw,5rem);max-width:900px}h2{font-size:clamp(1.5rem,3vw,2.4rem)}.lead{font-size:clamp(1.06rem,2vw,1.35rem);color:var(--muted);max-width:760px}.muted{color:var(--muted)}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.score-card{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.score-card div,.metrics div{border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.04);padding:16px}.score-card span,.metrics span{display:block;color:var(--muted);font-size:.88rem}.score-card strong{font-size:2.4rem}.setup-form{display:grid;gap:14px}.setup-form label{display:grid;gap:7px;color:var(--muted);font-weight:700}select{width:100%;border-radius:16px;border:1px solid var(--line);background:#08242b;color:var(--ink);padding:13px;font:inherit}.game-head{display:flex;justify-content:space-between;gap:18px;align-items:flex-start}.budget{min-width:145px;background:#09242a;border:1px solid var(--line);border-radius:22px;padding:16px;text-align:center}.budget span{display:block;color:var(--muted);font-size:.86rem}.budget strong{font-size:2.8rem;color:var(--gold)}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:16px 0}.metrics meter{width:100%;height:13px}.metrics strong{font-size:1.35rem}.play-area{display:grid;grid-template-columns:1fr 320px;gap:20px}.reef-board{display:grid;grid-template-columns:repeat(3,minmax(88px,1fr));gap:12px}.cell{min-height:142px;border-radius:24px;border:1px solid var(--line);background:linear-gradient(145deg,#124951,#0b2d35);padding:14px;text-align:left;color:var(--ink);cursor:pointer;position:relative;overflow:hidden}.cell:before{content:"";position:absolute;inset:auto -20px -25px auto;width:100px;height:80px;border-radius:50%;background:rgba(56,224,204,.12)}.cell.selected{outline:3px solid var(--aqua);box-shadow:0 0 0 6px rgba(56,224,204,.13)}.cell .emoji{font-size:1.8rem}.cell strong{display:block;margin-top:4px}.cell small{color:var(--muted)}.tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:8px}.tag{font-size:.7rem;color:#062026;background:var(--aqua);padding:3px 7px;border-radius:999px}.actions{background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:24px;padding:18px}.action{width:100%;display:flex;justify-content:space-between;align-items:center;margin:8px 0;border:1px solid var(--line);background:#0a3138;color:var(--ink);padding:12px;border-radius:16px;cursor:pointer;text-align:left}.action span{color:var(--muted);font-size:.82rem}.wide{width:100%;margin-top:10px}.debrief[hidden]{display:none}.final-card{white-space:pre-wrap;background:#04171c;border:1px solid var(--line);border-radius:22px;padding:18px;color:#dffff8}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.info article{border:1px solid var(--line);border-radius:22px;background:rgba(255,255,255,.035);padding:18px}footer{text-align:center;color:var(--muted);padding:32px 16px}@media(max-width:850px){.hero,.grid-two,.play-area{grid-template-columns:1fr}.metrics,.info-grid{grid-template-columns:1fr 1fr}.topbar{align-items:flex-start;flex-direction:column}.reef-board{grid-template-columns:repeat(3,1fr)}.cell{min-height:116px;padding:11px}}@media(max-width:560px){.metrics,.score-card,.info-grid{grid-template-columns:1fr}.reef-board{grid-template-columns:1fr}.game-head{flex-direction:column}.budget{width:100%}}