:root{--blue:#2563eb;--blue-d:#1d4ed8;--blue-l:#eff6ff;--ink:#0f172a;--mut:#64748b;--line:#e2e8f0;--bg:#f1f5f9;--ok:#059669;--warn:#d97706;--bad:#e11d48}
  *{box-sizing:border-box;margin:0;padding:0}
  body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);min-height:100vh;display:flex;align-items:center;justify-content:center}
  .app{width:100%;max-width:420px;height:100vh;background:#fff;display:flex;flex-direction:column;overflow:hidden;position:relative}
  @media(min-width:640px){.app{height:860px;border-radius:24px;box-shadow:0 20px 50px rgba(15,23,42,.18);border:1px solid var(--line)}}
  #screen{flex:1;display:flex;flex-direction:column;min-height:0}
  header.h{display:flex;align-items:center;gap:6px;padding:8px 10px;border-bottom:1px solid var(--line);flex-shrink:0;min-height:56px}
  header.h .t{flex:1;font-size:17px;font-weight:800}
  .ib{background:none;border:0;color:var(--mut);font-size:20px;cursor:pointer;min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center;border-radius:12px}
  .ib:hover{background:var(--bg)}
  .body{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:12px}
  nav#nav{display:flex;align-items:flex-end;justify-content:space-around;border-top:1px solid var(--line);padding:6px 4px 8px;flex-shrink:0;background:#fff}
  nav#nav button{background:none;border:0;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11px;color:var(--mut);min-width:56px;min-height:48px;cursor:pointer;font-weight:600}
  nav#nav button span.e{font-size:20px}
  nav#nav button.on{color:var(--blue)}
  nav#nav button.cam{background:var(--blue);color:#fff;border-radius:50%;width:56px;height:56px;min-width:56px;margin-top:-22px;box-shadow:0 6px 14px rgba(37,99,235,.4);justify-content:center}
  h1{font-size:22px} h2{font-size:15px} h3{font-size:13px;color:var(--mut);text-transform:uppercase;letter-spacing:.04em}
  .sub{font-size:13px;color:var(--mut);line-height:1.5}
  .btn{background:var(--blue);color:#fff;border:0;border-radius:16px;padding:14px;font-size:15px;font-weight:700;cursor:pointer;min-height:48px;width:100%;display:flex;align-items:center;justify-content:center;gap:8px;text-decoration:none}
  .btn:hover{background:var(--blue-d)} .btn.sec{background:#fff;color:var(--ink);border:1px solid var(--line)} .btn.sec:hover{background:var(--bg)}
  .btn.sm{padding:8px 12px;font-size:13px;min-height:44px;border-radius:12px;width:auto}
  .btn[disabled]{opacity:.45;cursor:not-allowed}
  .card{border:1px solid var(--line);border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:8px;background:#fff}
  .row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px}
  .chips{display:flex;gap:6px;overflow-x:auto;padding:2px 0;scrollbar-width:none}.chips::-webkit-scrollbar{display:none}
  .chip{white-space:nowrap;border:0;background:var(--bg);color:#475569;border-radius:99px;padding:0 14px;font-size:13px;font-weight:600;cursor:pointer;min-height:36px}
  .chip.on{background:var(--ink);color:#fff}
  input[type=text],input[type=email],input[type=password],input[type=search],select{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px;font-size:15px;min-height:48px;background:#fff;color:var(--ink)}
  input:focus,select:focus{outline:2px solid #93c5fd;border-color:var(--blue)}
  label.f{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:700}
  .opt{display:flex;gap:10px;align-items:flex-start;border:2px solid var(--line);border-radius:14px;padding:12px;cursor:pointer;min-height:56px}
  .opt:has(input:checked){border-color:var(--blue);background:var(--blue-l)}
  .opt input{margin-top:3px;accent-color:var(--blue);width:18px;height:18px;flex-shrink:0}
  .opt b{font-size:14px;display:block}.opt span{font-size:12px;color:var(--mut)}
  .grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .tile{border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;background:#fff;cursor:pointer;text-align:left;padding:0;font:inherit;color:inherit}
  .tile .ph{height:96px;background:linear-gradient(135deg,#475569,#0f172a);position:relative;display:flex;align-items:center;justify-content:center;font-size:34px}
  .tile .ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
  .tile .ph .bd{position:absolute;top:6px;left:6px;background:rgba(0,0,0,.6);color:#fff;font-size:11px;padding:2px 8px;border-radius:8px;z-index:1}
  .tile .ph .st{position:absolute;top:6px;right:6px;font-size:10px;font-weight:700;color:#fff;padding:2px 7px;border-radius:99px;z-index:1}
  .tile .tx{padding:10px;display:flex;flex-direction:column;gap:4px}
  .tile .tx b{font-size:13px}.tile .tx small{font-size:11px;color:var(--mut)}
  .meter{height:6px;background:var(--line);border-radius:99px;overflow:hidden}.meter i{display:block;height:100%}
  .badge{display:inline-block;font-size:12px;font-weight:700;padding:3px 10px;border-radius:99px}
  .good{background:#d1fae5;color:#065f46}.slow{background:#fef3c7;color:#92400e}.miss{background:#ffe4e6;color:#9f1239}.info{background:var(--blue-l);color:var(--blue-d)}
  .scene{position:relative;width:100%;aspect-ratio:3/2;background:linear-gradient(135deg,#334155,#0f172a);border-radius:16px;overflow:hidden;touch-action:none;flex-shrink:0}
  .scene img{position:absolute;inset:0;width:100%;height:100%;display:block;pointer-events:none}
  .mk{position:absolute;width:44px;height:44px;transform:translate(-50%,-50%);display:flex;align-items:center;justify-content:center;border:0;background:none;cursor:pointer;padding:0}
  .mk i{width:22px;height:22px;border-radius:50%;background:#fff;border:3px solid var(--blue);box-shadow:0 0 0 0 rgba(37,99,235,.7);animation:pr 1.6s infinite;display:block}
  .mk.region i{width:84px;height:56px;border-radius:14px;background:rgba(255,255,255,.12);border:3px dashed #fff;animation:none}
  .mk .lb{position:absolute;left:34px;top:-6px;background:rgba(0,0,0,.75);color:#fff;font-size:12px;font-weight:700;padding:3px 8px;border-radius:8px;white-space:nowrap}
  .mk.drag{cursor:grab;touch-action:none}.mk.drag i{animation:none;border-color:var(--warn)}
  @keyframes pr{70%{box-shadow:0 0 0 14px rgba(37,99,235,0)}100%{box-shadow:0 0 0 0 rgba(37,99,235,0)}}
  .cap{position:absolute;left:8px;bottom:8px;background:rgba(0,0,0,.6);color:#fff;font-size:12px;padding:3px 8px;border-radius:8px;pointer-events:none}
  .seg{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
  .seg button{border:2px solid var(--line);background:#f8fafc;border-radius:14px;padding:8px 4px;cursor:pointer;font:inherit;display:flex;flex-direction:column;align-items:center;min-height:52px}
  .seg button b{font-size:13px}.seg button small{font-size:11px;color:var(--mut)}
  .seg button.on{border-color:var(--blue);background:var(--blue-l);color:var(--blue-d)}
  .seg button[disabled]{opacity:.5;cursor:not-allowed}
  .line{border:1px solid var(--line);border-radius:12px;padding:10px 12px;display:flex;gap:8px;align-items:center;justify-content:space-between;cursor:pointer;background:#fff;font:inherit;color:inherit;text-align:left;width:100%}
  .line.on{border-color:var(--blue);background:var(--blue-l)}
  .line .en{font-weight:700;font-size:14px}.line .ipa{font-size:12px;color:var(--mut)}
  .hidden{display:none!important}
  .timer{height:10px;background:var(--line);border-radius:99px;overflow:hidden}.timer i{display:block;height:100%;width:100%;transform-origin:left;background:var(--blue)}.timer.hid{visibility:hidden}
  .hint{font-family:ui-monospace,Consolas,monospace;font-size:22px;letter-spacing:4px;min-height:30px;text-align:center}
  .word{font-size:22px;font-weight:800}.ipa{color:var(--mut);font-size:14px}
  .stat{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}.stat.two{grid-template-columns:1fr 1fr}
  .stat div{background:var(--bg);border-radius:14px;padding:10px 6px;text-align:center}.stat b{font-size:20px;display:block}.stat span{font-size:11px;color:var(--mut)}
  .hero{background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;border-radius:20px;padding:18px;display:flex;flex-direction:column;gap:10px}
  .hero .sub{color:#dbeafe}
  .hero .btn{background:#fff;color:var(--blue-d)}
  .mic{min-height:48px;display:flex;align-items:center;justify-content:center;gap:10px;font-size:14px;color:var(--mut)}
  .dot{width:12px;height:12px;border-radius:50%;background:#cbd5e1}.dot.on{background:var(--bad);animation:bl .8s infinite alternate}@keyframes bl{to{opacity:.25}}
  .rec{background:var(--blue);color:#fff;border:0;border-radius:18px;padding:14px;font-size:14px;font-weight:700;min-height:56px;width:100%;cursor:pointer;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;touch-action:none}
  .rec.on{background:var(--bad)}
  .steps{display:grid;gap:8px;list-style:none}.steps li{display:flex;gap:10px;align-items:center;font-size:14px;color:var(--mut)}.steps li.done{color:var(--ink)}.steps li .c{width:22px;height:22px;border-radius:50%;border:2px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:12px;flex-shrink:0}.steps li.done .c{background:var(--ok);border-color:var(--ok);color:#fff}
  .note{font-size:12px;color:var(--mut);text-align:center}
  .proto{background:#fef3c7;color:#92400e;font-size:11px;padding:6px 10px;border-radius:10px;text-align:center}
  .toast{position:absolute;left:50%;bottom:90px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 16px;border-radius:12px;font-size:13px;z-index:50;max-width:88%;text-align:center}
  .logo{width:64px;height:64px;border-radius:18px;background:var(--blue);color:#fff;font-size:34px;font-weight:900;display:flex;align-items:center;justify-content:center}
  .av{font-size:30px;width:56px;height:56px;border:2px solid var(--line);border-radius:50%;background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center}
  .av.on{border-color:var(--blue);background:var(--blue-l)}
  .err{color:var(--bad);font-size:12px;font-weight:600}
  .err:not(:empty){background:#fff1f2;border:1px solid #fecdd3;border-radius:12px;padding:10px 12px;font-size:13px}
  .sw{position:relative;width:48px;height:28px;flex-shrink:0}.sw input{appearance:none;width:48px;height:28px;border-radius:99px;background:#cbd5e1;cursor:pointer;transition:.2s;outline-offset:2px}.sw input:checked{background:var(--blue)}.sw input::after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;transition:.2s}.sw input:checked::after{left:23px}
  .bars{display:flex;align-items:flex-end;gap:6px;height:64px}.bars i{flex:1;background:var(--blue);border-radius:6px 6px 0 0;min-height:4px;opacity:.85}
  :focus-visible{outline:3px solid #93c5fd;outline-offset:2px}
  .screen{flex:1;display:flex;flex-direction:column;min-height:0}
  .body{overflow-x:hidden}
  .app{overflow-x:hidden}
  .link{background:none;border:0;color:var(--blue-d);font:inherit;font-size:14px;font-weight:700;cursor:pointer;min-height:44px;padding:0 8px;text-decoration:underline}
  .center{text-align:center}
  .overlay{position:absolute;inset:0;background:rgba(15,23,42,.55);display:flex;align-items:center;justify-content:center;z-index:60;padding:20px}
  .dialog{background:#fff;border-radius:18px;padding:18px;display:flex;flex-direction:column;gap:12px;max-width:360px;width:100%}
  .dialog .acts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .btn.bad{background:var(--bad)}
  .empty{padding:24px 12px;text-align:center;display:flex;flex-direction:column;gap:10px;align-items:center}
  .empty .btn{width:auto;padding:12px 20px}
  .gate-ico{font-size:44px;text-align:center}
  .hero .btn.ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.7)}
  .tile .ph .ico{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
  .tile{min-width:0}
  .grid2>*{min-width:0}
  .seg{grid-template-columns:repeat(3,1fr)}
  .seg button{min-height:48px;font:inherit;font-weight:700;font-size:13px}