[hidden]{display:none!important}
:root{
  --navy:#0f2a4a; --navy2:#173b66; --ink:#14202e; --muted:#5b6b7d; --line:#dfe6ee; --bg:#f4f7fb; --card:#fff;
  --yellow:#ffcc00; --green:#1f8a4c; --green-bg:#e7f6ed; --red:#c8102e; --red-bg:#fdecee; --blue:#1d5fd1;
  --r:16px; --shadow:0 1px 2px rgba(16,32,56,.06),0 6px 20px rgba(16,32,56,.06);
}
*{box-sizing:border-box}
html,body{margin:0}
body{font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
button{font:inherit;cursor:pointer}
a{color:var(--blue)}
.wrap{max-width:960px;margin:0 auto;padding:0 18px}
/* header */
.top{background:var(--navy);color:#fff;position:sticky;top:0;z-index:10}
.top-in{max-width:960px;margin:0 auto;padding:10px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:10px;background:none;border:0;color:#fff;padding:0;text-align:left}
.logo{width:36px;height:36px;flex:none}.logo svg{width:100%;height:100%}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:18px;letter-spacing:.2px}.brand-text small{font-size:12px;opacity:.75}
.top-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.chip .short{display:none}
.chip{white-space:nowrap;background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:6px 12px;font-size:14px}
.langs{display:flex;background:rgba(255,255,255,.12);border-radius:999px;padding:3px}
.langs button{background:none;border:0;color:#fff;font-size:13px;font-weight:600;padding:5px 10px;border-radius:999px;opacity:.8}
.langs button[aria-pressed=true]{background:#fff;color:var(--navy);opacity:1}
main{padding-top:22px;padding-bottom:30px;min-height:70vh}
h1{font-size:clamp(24px,4vw,34px);line-height:1.15;margin:6px 0 8px}
h2{font-size:20px;margin:0 0 6px}
.lead{color:var(--muted);margin:0 0 20px;max-width:640px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:18px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;padding:12px 18px;font-weight:700;background:var(--navy);color:#fff;text-decoration:none;min-height:46px}
.btn:hover{background:var(--navy2)}
.btn.y{background:var(--yellow);color:#111}.btn.y:hover{filter:brightness(.96)}
.btn.ghost{background:#fff;color:var(--navy);border:1.5px solid var(--line)}
.btn.block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.muted{color:var(--muted)}.small{font-size:14px}
/* setup */
.hero{background:linear-gradient(135deg,var(--navy),#1d4f86);color:#fff;border-radius:22px;padding:26px 22px;margin-bottom:18px;position:relative;overflow:hidden}
.hero .lead{color:#d6e2f0}
.hero-signs{position:absolute;right:-10px;bottom:-14px;display:flex;gap:8px;opacity:.95}
.hero-signs div{width:64px;height:64px}
@media(max-width:640px){.hero-signs{display:none}}
.step{margin:18px 0 8px;font-weight:700}
.pick{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.opt{display:flex;align-items:center;gap:14px;background:#fff;border:2px solid var(--line);border-radius:14px;padding:14px;text-align:left;color:var(--ink)}
.opt:hover{border-color:#b9c7d8}
.opt[aria-pressed=true]{border-color:var(--navy);box-shadow:0 0 0 3px rgba(15,42,74,.12)}
.opt .ab{width:46px;height:46px;border-radius:12px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px;flex:none}
.opt b{display:block}.opt small{color:var(--muted)}
/* home */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px}
.tile{display:flex;flex-direction:column;gap:10px}
.tile-h{display:flex;gap:12px;align-items:center}
.tile-ic{width:52px;height:52px;flex:none}
.bar{height:8px;background:#e8eef5;border-radius:99px;overflow:hidden}.bar i{display:block;height:100%;background:var(--green);border-radius:99px}
.badge{display:inline-block;font-size:12px;font-weight:700;padding:3px 9px;border-radius:99px;background:#eef3f9;color:var(--navy)}
.badge.free{background:#fff4c2;color:#6b5300}.badge.lock{background:#f1f1f4;color:#555}.badge.ok{background:var(--green-bg);color:var(--green)}
.unlock-banner{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:#fff8d6;border:1px solid #f1df8a;border-radius:var(--r);padding:16px 18px;margin:16px 0}
/* quiz */
.qtop{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.qcard{padding:20px}
.qtext{font-size:clamp(18px,2.6vw,22px);font-weight:700;margin:4px 0 16px}
.sign{width:min(190px,48vw);height:min(190px,48vw);margin:0 auto 16px;display:block}
.sign svg{width:100%;height:100%;filter:drop-shadow(0 2px 3px rgba(0,0,0,.15))}
.opts{display:grid;gap:10px}
.o{display:flex;gap:12px;align-items:flex-start;text-align:left;background:#fff;border:2px solid var(--line);border-radius:12px;padding:13px 14px;color:var(--ink);min-height:52px}
.o:hover:not([disabled]){border-color:#9fb3ca}
.o .l{width:28px;height:28px;flex:none;border-radius:8px;background:#eef3f9;display:grid;place-items:center;font-weight:800;color:var(--navy)}
.o.ok{border-color:var(--green);background:var(--green-bg)}.o.ok .l{background:var(--green);color:#fff}
.o.bad{border-color:var(--red);background:var(--red-bg)}.o.bad .l{background:var(--red);color:#fff}
.o[disabled]{cursor:default}
.fb{margin-top:14px;border-radius:12px;padding:14px;border:1px solid var(--line);background:#f8fafc}
.fb b.ok{color:var(--green)}.fb b.bad{color:var(--red)}
.qnav{display:flex;justify-content:space-between;margin-top:14px;gap:10px}
.timer{font-variant-numeric:tabular-nums;font-weight:700}
.big{font-size:44px;font-weight:800;margin:4px 0}
/* paywall / modal */
.pay{max-width:560px;margin:0 auto;text-align:center}
.perks{text-align:left;list-style:none;padding:0;margin:16px 0}
.perks li{padding:7px 0 7px 30px;position:relative}
.perks li:before{content:"✓";position:absolute;left:4px;top:6px;color:var(--green);font-weight:800}
.price{font-size:40px;font-weight:800;margin:6px 0}
.keybox{display:flex;gap:8px;margin-top:8px}
.keybox input{flex:1;min-width:0;border:2px solid var(--line);border-radius:12px;padding:12px;font:15px/1.2 ui-monospace,Menlo,Consolas,monospace;text-transform:uppercase}
.keybox input:focus{outline:none;border-color:var(--navy)}
.msg{margin-top:10px;border-radius:10px;padding:10px 12px;font-size:14px;text-align:left}
.msg.err{background:var(--red-bg);color:#8a0c20}.msg.ok{background:var(--green-bg);color:#145c33}.msg.info{background:#eef3f9;color:var(--navy)}
.divider{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:14px;margin:18px 0 6px}
.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--line)}
.modal{position:fixed;inset:0;background:rgba(10,20,35,.55);display:grid;place-items:center;padding:16px;z-index:50}
.modal[hidden]{display:none}
.modal-card{background:#fff;border-radius:20px;max-width:560px;width:100%;max-height:92vh;overflow:auto;padding:22px;position:relative}
.x{position:absolute;right:10px;top:8px;background:none;border:0;font-size:28px;color:var(--muted)}
.mrow{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}
.preview{background:#fff4c2;border:1px dashed #d9b800;border-radius:10px;padding:8px 12px;font-size:14px;margin-bottom:14px}
.foot{color:var(--muted);font-size:13px;padding-bottom:30px}
@media(max-width:520px){.brand-text small{display:none}.brand-text b{font-size:16px;white-space:nowrap}.logo{width:30px;height:30px}.top-in{padding:8px 12px}.chip .full{display:none}.chip .short{display:inline!important}.langs button{padding:5px 8px}.top-actions{flex-wrap:nowrap}.qcard{padding:16px}.keybox{flex-direction:column}}