:root{--accent:#2563eb;--bg:#0b1220;--bg2:#111a2e;--card:#16213a;--txt:#e8eefc;--muted:#93a3c4;--line:#24314f;--radius:22px}
[data-theme=light]{--bg:#eef2f8;--bg2:#e3e9f3;--card:#fff;--txt:#0f172a;--muted:#5b6b86;--line:#d7dfeb}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,sans-serif;background:radial-gradient(1200px 600px at 10% -10%,color-mix(in srgb,var(--accent) 25%,transparent),transparent),var(--bg);color:var(--txt);display:flex;flex-direction:column;user-select:none;-webkit-user-select:none;overflow:hidden;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}
.top{display:flex;justify-content:space-between;align-items:center;padding:22px 32px 8px;gap:20px}
.brand{display:flex;align-items:center;gap:20px;min-width:0}
.logo{max-height:72px;max-width:220px;object-fit:contain;background:#fff;border-radius:14px;padding:8px}
.top h1{margin:0;font-size:clamp(24px,3.4vw,40px);letter-spacing:-.02em}
.sub{margin:4px 0 0;color:var(--muted);font-size:clamp(15px,1.8vw,20px)}
.top-right{display:flex;align-items:center;gap:14px}
.clock{font-size:clamp(20px,2.6vw,30px);font-variant-numeric:tabular-nums;color:var(--muted)}
.icon-btn{background:var(--card);border:1px solid var(--line);color:var(--txt);border-radius:14px;font-size:22px;width:52px;height:52px}
.grid{flex:1;display:grid;gap:22px;padding:18px 32px 32px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));align-content:stretch}
.grid.count-1{grid-template-columns:1fr}
.grid.count-2{grid-template-columns:repeat(2,1fr)}
.grid.count-4{grid-template-columns:repeat(2,1fr)}
.grid.count-3,.grid.count-5,.grid.count-6{grid-template-columns:repeat(3,1fr)}
@media (orientation:portrait){.grid.count-3,.grid.count-5,.grid.count-6{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.grid{grid-template-columns:1fr!important;padding:14px}.top{padding:16px}}
.vbtn{position:relative;border:0;border-radius:var(--radius);color:#fff;cursor:pointer;padding:24px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;min-height:150px;
  background:linear-gradient(145deg,var(--c),color-mix(in srgb,var(--c) 60%,#000));box-shadow:0 14px 30px -12px color-mix(in srgb,var(--c) 70%,transparent),inset 0 1px 0 rgba(255,255,255,.25);transition:transform .12s ease,filter .12s}
.vbtn:active{transform:scale(.97);filter:brightness(.92)}
.vicon{font-size:clamp(36px,5vw,60px);line-height:1}
.vlabel{font-size:clamp(26px,3.6vw,46px);font-weight:800;letter-spacing:-.02em}
.vsub{font-size:clamp(15px,1.8vw,20px);opacity:.92}
.vmeta{font-size:clamp(13px,1.5vw,16px);opacity:.8;background:rgba(0,0,0,.18);padding:5px 12px;border-radius:999px;margin-top:6px}
.overlay{position:fixed;inset:0;background:rgba(5,10,20,.66);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:10;padding:20px;animation:fade .15s}
.overlay[hidden]{display:none}
.overlay.solid{background:var(--bg)}
@keyframes fade{from{opacity:0}to{opacity:1}}
.card{background:var(--card);border:1px solid var(--line);border-radius:26px;padding:34px;box-shadow:0 30px 80px -20px rgba(0,0,0,.5);width:min(680px,100%)}
.card.narrow{width:min(460px,100%)}
.center{flex:1;display:flex;align-items:center;justify-content:center;padding:20px}
.center-text,.result{text-align:center}
.card h2{margin:6px 0 14px;font-size:28px}
.big-icon{font-size:56px}
.muted{color:var(--muted)}
.row{display:flex;gap:14px;justify-content:center;margin-top:22px;flex-wrap:wrap}
.btn{background:var(--accent);color:#fff;border:0;border-radius:16px;padding:16px 30px;font-size:20px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block}
.btn.ghost{background:transparent;border:2px solid var(--line);color:var(--txt)}
.code{font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;font-size:clamp(34px,6vw,64px);font-weight:800;letter-spacing:.06em;background:var(--bg2);border-radius:18px;padding:14px 18px;margin:10px 0;user-select:text;-webkit-user-select:text}
.code small{display:block;font-size:15px;letter-spacing:0;font-weight:500;color:var(--muted);font-family:inherit}
.countdown{margin-top:16px;height:5px;background:var(--line);border-radius:4px;overflow:hidden}
.countdown span{display:block;height:100%;background:var(--accent);transition:width 1s linear}
.spinner{width:64px;height:64px;border:6px solid var(--line);border-top-color:var(--accent);border-radius:50%;margin:10px auto 18px;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.stepper{display:flex;align-items:center;justify-content:center;gap:28px;margin:18px 0}
.stepper span{font-size:56px;font-weight:800;min-width:80px;text-align:center}
.step{width:76px;height:76px;border-radius:50%;border:0;background:var(--bg2);color:var(--txt);font-size:40px}
.pin-dots{display:flex;gap:14px;justify-content:center;margin:10px 0 20px;min-height:22px}
.pin-dots i{width:18px;height:18px;border-radius:50%;background:var(--accent)}
.pinpad{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:320px;margin:0 auto}
.pinpad button{height:72px;font-size:28px;border-radius:18px;border:1px solid var(--line);background:var(--bg2);color:var(--txt)}
.pinpad button:active{background:var(--accent);color:#fff}
.err{color:#f87171;min-height:1.4em}
.shake{animation:shake .35s}
@keyframes shake{25%{transform:translateX(-10px)}75%{transform:translateX(10px)}}