*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{--bg:#0d0d0d;--panel:#181818;--panel-glass:rgba(255,255,255,.06);--text:#fff;--accent:#f2b4ff;--accent-glow:#f2b4ff33;--good:#1f6f2e;--bad:#7f1f1f;--warn:#5b5213;--radius:28px;--trans:180ms cubic-bezier(.4,0,.2,1);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
body{margin:0;background:radial-gradient(circle at 50% 20%,#111 0%,#000 70%);color:var(--text);min-height:100dvh;display:flex;flex-direction:column}
body,button{font-family:inherit}
button{cursor:pointer;border:none;background:var(--panel-glass);color:var(--text);padding:12px 22px;border-radius:999px;font-weight:600;font-size:.9rem;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:var(--trans);display:inline-flex;align-items:center;gap:.5rem}
button:hover,button:focus-visible{background:var(--accent-glow)}
button:active{transform:translateY(1px)}
.app-header{display:flex;align-items:center;justify-content:space-between;padding:10px 18px;font-size:.75rem;font-weight:600;letter-spacing:.5px}
.brand{display:flex;align-items:center;gap:.5rem;font-weight:600;font-size:.75rem;opacity:.85}
.pill{font-size:.7rem;padding:10px 18px;background:var(--accent);color:#222;font-weight:700}
.screen{display:none;flex:1;position:relative}
.screen.active{display:block}
.hero{padding:80px clamp(20px,8vw,120px) 40px;max-width:620px}
.hero h1{font-size:clamp(2.2rem,5vw,3rem);margin:0 0 10px;font-weight:700}
.hero p{margin:0 0 30px;font-size:.9rem;line-height:1.5;opacity:.9}
.subjects{display:flex;flex-wrap:wrap;gap:14px}
.subject-btn{background:linear-gradient(160deg,#2c2c2c,#151515);padding:16px 26px;font-size:.95rem;border-radius:var(--radius);position:relative;overflow:hidden;font-weight:600;letter-spacing:.5px}
.subject-btn[data-color]{--c:var(--accent)}
.subject-btn.Engineering{--c:#f0c24b}
.subject-btn.DT{--c:#ff7f1d}
.subject-btn.Physics{--c:#34d66f}
.subject-btn::before{content:"";position:absolute;inset:0;background:linear-gradient(140deg,var(--c)10%,transparent 60%);opacity:.15;mix-blend-mode:plus-lighter}
.subject-btn:hover{box-shadow:0 0 0 1px var(--c),0 0 0 4px #ffffff05;background:#1d1d1d}
.word-cloud{position:absolute;inset:0;pointer-events:none;font-weight:700;font-size:40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;padding:40px;opacity:.2;gap:20px;text-align:right}
.play-centered,.result-centered,.gameover-centered{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px}
.current-word{font-size:clamp(3rem,10vw,6rem);font-weight:700;margin:30px 0}
.instruction{font-size:.7rem;letter-spacing:.5px;font-weight:600;opacity:.75}
.result-status{font-size:.8rem;font-weight:600;letter-spacing:.5px;opacity:.85;margin-bottom:6px}
.next-info{font-size:.7rem;opacity:.8}
.hud{display:flex;gap:16px;margin-top:40px;flex-wrap:wrap;justify-content:center}
.hud-inline .stat{background:var(--panel-glass);padding:18px 32px;border-radius:40px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;flex-direction:column;align-items:flex-start;gap:6px;min-width:150px;position:relative}
.stat-title{font-size:.7rem;letter-spacing:.5px;font-weight:600;opacity:.85;text-transform:uppercase}
.stat-value{font-weight:700;font-size:1.1rem}
.actions{display:flex;gap:20px;margin-top:50px;flex-wrap:wrap;justify-content:center}
.btn{background:linear-gradient(180deg,#1e1e1e,#121212);min-width:200px;border-radius:30px;padding:20px 32px;font-size:.85rem;line-height:1.2;display:flex;flex-direction:column;align-items:center;gap:4px;font-weight:700;letter-spacing:.5px;position:relative;overflow:hidden}
.btn small{font-weight:400;opacity:.7;letter-spacing:0;font-size:.65rem}
.btn:hover{background:#222}
.gameover-centered h1{font-size:clamp(2rem,6vw,3rem);margin:0 0 10px}
body.correct{background:radial-gradient(circle at 50% 50%,#0e3d18,#000)}
body.incorrect{background:radial-gradient(circle at 50% 50%,#3d0e0e,#000)}
body.finished{background:radial-gradient(circle at 50% 50%,#3d390e,#000)}
.toast{position:fixed;left:50%;bottom:-80px;transform:translateX(-50%);background:#222;padding:14px 24px;border-radius:30px;font-size:.75rem;font-weight:600;letter-spacing:.5px;transition:var(--trans);opacity:0;z-index:200}
.toast.show{bottom:40px;opacity:1}
@media (orientation:landscape){.subjects{max-width:680px}}
@media (max-width:600px){.subject-btn{flex:1 1 calc(50% - 14px);text-align:left}}