:root{--bg:#f4f6fb;--card:#fff;--text:#1a2233;--muted:#6b7690;--line:#e3e8f2;--accent:#3b5bdb;--accent-fg:#fff;--late:#e03131;--late-bg:#fff0f0;--early:#2f9e44;--early-bg:#ebfbee;--ontime:#868e96;--ontime-bg:#f1f3f5;--shadow:0 1px 2px #141e3c0f, 0 8px 24px #141e3c0f}@media (prefers-color-scheme:dark){:root{--bg:#0f1420;--card:#171d2b;--text:#e7ecf5;--muted:#8b95ac;--line:#262f42;--accent:#5c7cfa;--accent-fg:#0b0f18;--late:#ff6b6b;--late-bg:#2a1416;--early:#51cf66;--early-bg:#122015;--ontime:#7c8598;--ontime-bg:#1c2333;--shadow:0 1px 2px #0000004d, 0 8px 24px #00000059}}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font:15px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}main{overflow-wrap:break-word;max-width:560px;margin:0 auto;padding:28px 18px 80px}header{margin-bottom:20px}h1{letter-spacing:-.02em;margin:0 0 4px;font-size:24px}h2{margin:0 0 4px;font-size:17px}.sub{color:var(--muted);margin:0;font-size:13.5px}.card{background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;padding:18px}form.card{gap:14px;display:grid}.field{gap:6px;display:grid;position:relative}.field-head{justify-content:space-between;align-items:center;gap:10px;display:flex}label{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:12px;font-weight:600}.locate-btn{appearance:none;color:var(--accent);cursor:pointer;white-space:nowrap;background:0 0;border:0;padding:0;font-size:12.5px;font-weight:600}.locate-btn:hover{text-decoration:underline}.locate-btn:disabled{opacity:.6;cursor:default}.locate-error{color:var(--late);margin:0;font-size:12.5px}input[type=text],input[type=time],select{width:100%;min-width:0;color:var(--text);background:var(--bg);border:1px solid 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