:root{--bg:#0b1220;--card:#131c2e;--line:#233149;--txt:#e8eef7;--muted:#93a3bd;--brand:#4f8cff;--ok:#28c785;--bad:#ff5a6a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--txt);font:16px/1.5 system-ui,sans-serif}.app{min-height:100vh;display:flex;flex-direction:column}.bar{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--line)}.brand{font-weight:800}.brand span{color:var(--brand)}.center{flex:1;display:grid;place-items:center;padding:20px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;width:360px;max-width:92vw}input{width:100%;padding:12px;background:#0e1626;border:1px solid var(--line);border-radius:9px;color:var(--txt);font-size:15px}button{width:100%;cursor:pointer;border:0;border-radius:10px;padding:13px;font-weight:700;font-size:15px;background:var(--brand);color:#fff;margin-top:12px}button.ghost{background:transparent;border:1px solid var(--line);color:var(--txt)}#reader{width:100%}.scanwrap{flex:1;display:flex;flex-direction:column}.zoneTag{text-align:center;padding:8px;color:var(--muted);font-size:14px}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;z-index:5;animation:fade .15s}.overlay.ok{background:#28c785f5}.overlay.bad{background:#ff5a6af5}.overlay .big{font-size:64px}.overlay .name{font-size:28px;font-weight:800}.overlay .dir{font-size:40px;font-weight:900;letter-spacing:2px}.overlay .why{opacity:.85;margin-top:6px}@keyframes fade{0%{opacity:0}to{opacity:1}}.pinpad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.pinpad button{margin:0;padding:18px;font-size:20px;background:#0e1626;border:1px solid var(--line)}.err{color:var(--bad);font-size:14px;margin-top:8px}.muted{color:var(--muted)}.small{font-size:13px}