:root{--primary: #1b5c82;--primary-hover: #164a69;--on-primary: #ffffff;--primary-container: #c8e5f6;--on-primary-container: #001e2d;--ink: #111d27;--ink-weak: #3e5060;--bg: #f5f8fc;--card: #ffffff;--surface-hi: #dde7f0;--border: #dde7f0;--positive: #4caf8a;--warn: #f4a830;--danger: #b3261e;--danger-bg: #f9dedc;--shadow: rgba(17, 29, 39, .08);--radius: 18px}@media(prefers-color-scheme:dark){:root{--primary: #8ecae6;--primary-hover: #a5d7ee;--on-primary: #003549;--primary-container: #004d6a;--on-primary-container: #c8e5f6;--ink: #e3edf8;--ink-weak: #a8bfcc;--bg: #111d27;--card: #18293a;--surface-hi: #1e3048;--border: #2a4264;--danger: #f2b8b5;--danger-bg: #601410;--shadow: rgba(0, 0, 0, .35)}}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Segoe UI,Noto Sans JP,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;text-size-adjust:100%}.card{width:100%;max-width:420px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:0 8px 30px var(--shadow)}.card-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}.card-head .mark{border-radius:10px;flex:none}h1{font-size:20px;margin:0;letter-spacing:.01em}.sub,.lead{font-size:14px;margin:0 0 16px;color:var(--ink-weak)}.lead{color:var(--ink)}.who{font-size:13px;color:var(--ink-weak);margin:0 0 18px;overflow-wrap:anywhere}.who strong{color:var(--ink);font-weight:600}.loading{color:var(--ink-weak);font-size:14px;text-align:center;margin:24px 0}.notice{margin:0 0 16px;padding:10px 14px;border-radius:12px;border-left:4px solid var(--warn);background:var(--surface-hi);font-size:14px;font-weight:600}.btn{display:block;width:100%;padding:13px 18px;margin-top:10px;border:1px solid var(--border);border-radius:12px;background:var(--card);color:var(--ink);font-size:15px;font-weight:600;font-family:inherit;cursor:pointer}.btn:hover{background:var(--surface-hi)}.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.btn-primary{background:var(--primary);border-color:var(--primary);color:var(--on-primary)}.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover)}.btn-primary:disabled{opacity:.6;cursor:default}.btn-text{border:none;background:none;color:var(--ink-weak);font-weight:500;margin-top:18px}.btn-text:hover{background:none;text-decoration:underline}.mode{border:1px solid var(--border);border-radius:12px;padding:8px 16px 12px;margin:0 0 16px}.mode legend{font-size:13px;color:var(--ink-weak);padding:0 4px}.radio{display:flex;align-items:center;gap:10px;padding:8px 0;font-size:15px;cursor:pointer}.radio input{accent-color:var(--primary);width:20px;height:20px;flex:none}.field{margin-bottom:16px}.field>label{display:block;font-size:13px;color:var(--ink-weak);margin-bottom:6px}.field input[type=date]{width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:10px;font-size:15px;font-family:inherit;background:var(--card);color:var(--ink)}.field input[type=date]:focus-visible{outline:2px solid var(--primary);outline-offset:1px}.hint{font-size:12px;color:var(--ink-weak);margin:8px 0 0;line-height:1.6}.status{margin:14px 0 0;padding:10px 14px;border-radius:10px;background:var(--primary-container);color:var(--on-primary-container);font-size:14px}.status.is-error{background:var(--danger-bg);color:var(--danger)}.err{margin:14px 0 0;color:var(--danger);font-size:14px}.note{margin:16px 0 0;font-size:12px;color:var(--ink-weak);line-height:1.6}