:root{--bg:#080b12;--panel:#111827;--panel2:#151f32;--text:#edf2ff;--muted:#9aa8c7;--accent:#8be9fd;--good:#50fa7b;--warn:#ffcc66;--bad:#ff6b6b;--border:rgba(255,255,255,.1);--shadow:0 22px 70px rgba(0,0,0,.28)}*{box-sizing:border-box}html{color-scheme:dark}body{margin:0;min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at 10% 0,rgba(139,233,253,.16),transparent 34%),radial-gradient(circle at 90% 12%,rgba(80,250,123,.1),transparent 28%),var(--bg);color:var(--text)}.app{width:min(1040px,calc(100% - 32px));margin:0 auto;padding:24px 0 44px}.hero{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}.brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none}.brand strong{display:block;font-size:24px;letter-spacing:-.04em}.brand small{display:block;color:var(--muted);margin-top:1px}.logo{width:48px;height:48px;display:grid;place-items:center;border-radius:16px;background:linear-gradient(135deg,rgba(139,233,253,.22),rgba(80,250,123,.12));border:1px solid var(--border);font-size:29px;box-shadow:var(--shadow)}.panel{background:rgba(17,24,39,.84);border:1px solid var(--border);border-radius:24px;padding:18px;box-shadow:var(--shadow);backdrop-filter:blur(12px)}.intro{display:grid;grid-template-columns:1fr auto;gap:22px;align-items:end;margin-bottom:16px}.eyebrow{margin:0 0 10px;color:var(--accent);font-weight:800}.intro h1{margin:0;font-size:clamp(34px,6vw,68px);line-height:.94;letter-spacing:-.065em}.intro p:last-child{max-width:720px;color:var(--muted);line-height:1.55}.stats{display:flex;gap:10px}.stats div{min-width:82px;border:1px solid var(--border);border-radius:18px;padding:12px;background:rgba(255,255,255,.04);text-align:center}.stats strong{display:block;font-size:24px}.stats span{font-size:13px;color:var(--muted)}h2{margin:0 0 14px;font-size:18px}.answer-box{margin-bottom:16px}.letter-slots{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}.slot{width:44px;height:50px;display:grid;place-items:center;border-radius:14px;border:1px solid var(--border);background:rgba(255,255,255,.04);font-size:24px;font-weight:900}.slot.known{border-color:rgba(80,250,123,.5);background:rgba(80,250,123,.09);color:var(--good)}.guess-row{display:flex;gap:10px;flex-wrap:wrap}input{background:#0b1220;color:var(--text);border:1px solid var(--border);border-radius:14px;padding:12px 13px;font-size:16px;outline:none}input:focus{border-color:rgba(139,233,253,.62);box-shadow:0 0 0 4px rgba(139,233,253,.08)}#final-guess{min-width:min(340px,100%);text-transform:uppercase;letter-spacing:.08em}button{border:0;border-radius:14px;padding:12px 15px;font-weight:900;background:linear-gradient(135deg,var(--accent),var(--good));color:#061015;cursor:pointer}button:hover{filter:brightness(1.04)}button.secondary,.ghost{background:rgba(255,255,255,.06);color:var(--text);border:1px solid var(--border)}button:disabled{opacity:.5;cursor:not-allowed}.status{margin:12px 0 0;min-height:22px;font-weight:800}.status.good{color:var(--good)}.status.warn{color:var(--warn)}.status.bad{color:var(--bad)}.clues{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:14px;margin:16px 0}.card{background:rgba(17,24,39,.84);border:1px solid var(--border);border-radius:24px;padding:16px;box-shadow:0 18px 55px rgba(0,0,0,.2)}.card.solved{border-color:rgba(80,250,123,.42);background:rgba(80,250,123,.055)}.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.num{color:var(--muted);font-weight:900}.letter-badge{width:36px;height:36px;display:grid;place-items:center;border-radius:12px;border:1px solid var(--border);background:rgba(255,255,255,.04);font-weight:900}.letter-badge.revealed{color:var(--good);border-color:rgba(80,250,123,.45);background:rgba(80,250,123,.1)}.equation{min-height:78px;display:flex;align-items:center;justify-content:center;text-align:center;border-radius:18px;background:#0b1220;border:1px solid var(--border);font-size:21px;overflow-x:auto;padding:12px;margin-bottom:12px}.clue-row{display:flex;gap:8px}.clue-row input{width:100%;text-transform:lowercase}.hint,.explanation{margin:12px 0 0;color:var(--muted);line-height:1.45}.hint strong{color:var(--warn)}.explanation strong{color:var(--good)}.actions{display:flex;gap:10px;flex-wrap:wrap}.modal{max-width:560px}dialog{border:0;background:transparent;color:inherit}dialog::backdrop{background:rgba(0,0,0,.65)}footer{display:flex;gap:10px;justify-content:center;color:var(--muted);font-size:14px;margin-top:24px}footer a{color:var(--muted)}.page{max-width:760px;margin:0 auto}.page h1{font-size:44px;letter-spacing:-.04em}@media(max-width:700px){.intro{grid-template-columns:1fr}.stats{width:100%}.stats div{flex:1}.slot{width:38px;height:44px}.equation{font-size:18px}.clue-row{flex-direction:column}.hero{align-items:flex-start}.brand small{display:none}}