:root{--bg:#04121f;--bg2:#071d33;--ink:#e6f3ff;--mute:#8fb3cc;--accent:#5ee3c1;--warn:#ffb86b;--bad:#ff7a8a;--card:rgba(255,255,255,.05);--line:rgba(255,255,255,.12)}
*{box-sizing:border-box}
html,body{margin:0}
body{background:linear-gradient(180deg,#0b4f7a 0,#073454 18%,var(--bg2) 45%,var(--bg) 100%) fixed;color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;min-height:100vh}
a{color:var(--accent)}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
header.top{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{font-weight:800;letter-spacing:.08em;color:var(--ink);text-decoration:none;font-size:18px}
.logo span{color:var(--accent)}
nav a{color:var(--mute);text-decoration:none;margin-left:14px;font-size:14px}
nav a:hover{color:var(--ink)}
h1{font-size:clamp(26px,5vw,38px);line-height:1.2;margin:18px 0 6px}
h2{font-size:24px;margin:40px 0 10px}
h3{font-size:18px;margin:22px 0 6px}
.sub{color:var(--mute);margin:0 0 18px}
.game{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;position:relative;overflow:hidden}
.hud{display:flex;justify-content:space-between;gap:10px;font-variant-numeric:tabular-nums;color:var(--mute);font-size:14px;text-transform:uppercase;letter-spacing:.06em}
.hud b{color:var(--ink);font-size:20px;display:block;letter-spacing:0}
.meter{height:10px;background:rgba(255,255,255,.08);border-radius:99px;margin:14px 0 6px;overflow:hidden}
.meter i{display:block;height:100%;width:0;background:linear-gradient(90deg,#5ee3c1,#3b82f6,#7c3aed,#111);transition:width .6s}
.zone{font-size:13px;color:var(--mute);min-height:20px}
.prompt{font-size:clamp(22px,4.5vw,30px);font-weight:700;margin:20px 0 14px;min-height:2.4em}
.row{display:flex;gap:10px}
input[type=text]{flex:1;min-width:0;font:inherit;font-size:18px;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:rgba(0,0,0,.25);color:var(--ink)}
input[type=text]:focus{outline:2px solid var(--accent);border-color:transparent}
button{font:inherit;font-weight:700;border:0;border-radius:12px;padding:12px 18px;background:var(--accent);color:#03241c;cursor:pointer}
button.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
button:disabled{opacity:.5;cursor:default}
.timer{height:4px;background:rgba(255,255,255,.08);border-radius:99px;margin-top:12px;overflow:hidden}
.timer i{display:block;height:100%;background:var(--warn);width:100%}
.result{margin-top:16px;padding:14px;border-radius:12px;background:rgba(0,0,0,.25);min-height:60px}
.result .pts{font-size:28px;font-weight:800}
.good{color:var(--accent)}.meh{color:var(--warn)}.bad{color:var(--bad)}
.top3{color:var(--mute);font-size:14px;margin-top:6px}
.center{text-align:center}
.start{padding:26px 0 10px}
.start p{color:var(--mute)}
.btns{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:12px}
.review{list-style:none;padding:0;margin:14px 0 0;text-align:left}
.review li{display:flex;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px solid var(--line);font-size:15px}
.review li span:last-child{font-variant-numeric:tabular-nums;white-space:nowrap}
.share{font-family:ui-monospace,Menlo,monospace;white-space:pre-wrap;background:rgba(0,0,0,.3);padding:10px;border-radius:10px;font-size:14px;margin-top:12px;text-align:left}
.content p,.content li{color:#cfe3f3}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin:8px 0}
.faq summary{cursor:pointer;font-weight:600}
footer{color:var(--mute);font-size:13px;padding:40px 0 30px;border-top:1px solid var(--line);margin-top:50px}
footer a{color:var(--mute)}
@media (max-width:520px){nav a{margin-left:10px;font-size:13px}.row{flex-direction:column}}