:root{--bg:#f5f2ea;--surface:#fff;--ink:#1f2a1d;--ink-soft:#4a5544;--ink-mute:#8a8f82;--line:#d9d3c3;--line-strong:#b8b2a2;--accent:#2d4a2b;--accent-soft:#4a6d48;--accent-bg:#e8efe3;--danger:#8b3a2f;--danger-bg:#fbe8e3;--success:#2d5a3d;--success-bg:#e3efe7;--warn:#7a5b1a;--warn-bg:#f7efd8;--radius:10px;--radius-sm:6px;--shadow:0 1px 2px #1f2a1d0f, 0 4px 12px #1f2a1d0a}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,Yu Gothic,sans-serif;font-size:16px;line-height:1.6}body{min-height:100vh;padding:16px}.wrap{max-width:560px;margin:0 auto}header.app{border-bottom:2px solid var(--accent);margin-bottom:20px;padding:20px 4px 12px}header.app h1{color:var(--accent);letter-spacing:.02em;margin:0 0 4px;font-size:20px;font-weight:700}header.app .sub{color:var(--ink-mute);font-size:12px;font-weight:500}.notice{background:var(--warn-bg);border-left:3px solid var(--warn);border-radius:var(--radius-sm);color:var(--ink-soft);margin-bottom:20px;padding:10px 12px;font-size:13px}.field{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:12px;padding:16px}.field.error{border-color:var(--danger);background:var(--danger-bg)}label.lbl{color:var(--ink);margin-bottom:2px;font-size:15px;font-weight:600;display:block}label.lbl .en{color:var(--ink-mute);margin-left:4px;font-size:13px;font-weight:400}label.lbl .req{color:var(--danger);margin-left:4px;font-weight:700}.hint{color:var(--ink-mute);margin:0 0 10px;font-size:12px}input[type=date],input[type=time],input[type=text],select,textarea{width:100%;color:var(--ink);border:1.5px solid var(--line);border-radius:var(--radius-sm);appearance:none;background:#fdfcf8;outline:none;padding:12px 14px;font-family:inherit;font-size:16px;transition:border-color .15s,background .15s}select{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' width='12' height='8'%3E%3Cpath fill='%234a5544' d='M6 8L0 0h12z'/%3E%3C/svg%3E");background-position:right 14px center;background-repeat:no-repeat;padding-right:36px}input:focus,select:focus,textarea:focus{border-color:var(--accent);background:#fff}textarea{resize:vertical;min-height:90px}.time-row{grid-template-columns:1fr 1fr;gap:10px;display:grid}.time-row>div>label{color:var(--ink-soft);margin-bottom:6px;font-size:13px;font-weight:500;display:block}.duration-display{background:var(--accent-bg);border:1.5px solid var(--accent-soft);border-radius:var(--radius-sm);justify-content:space-between;align-items:center;gap:8px;margin-top:12px;padding:12px 14px;display:flex}.duration-display.invalid{background:var(--danger-bg);border-color:var(--danger)}.duration-display .dur-label{color:var(--ink-soft);font-size:13px;font-weight:500}.duration-display .dur-label .en{color:var(--ink-mute);margin-left:4px;font-weight:400}.duration-display .dur-value{color:var(--accent);font-variant-numeric:tabular-nums;font-size:17px;font-weight:700}.duration-display.invalid .dur-value{color:var(--danger);font-size:13px;font-weight:500}.duration-display.empty .dur-value{color:var(--ink-mute);font-size:13px;font-weight:500}.scale{align-items:center;gap:6px;margin-top:4px;display:flex}.scale-label{color:var(--ink-mute);flex-shrink:0;font-size:12px;font-weight:500}.scale-grid{flex:1;grid-template-columns:repeat(10,1fr);gap:4px;display:grid}.scale-btn{aspect-ratio:1;border:1.5px solid var(--line);color:var(--ink-soft);cursor:pointer;background:#fdfcf8;border-radius:6px;justify-content:center;align-items:center;min-width:0;padding:0;font-family:inherit;font-size:13px;font-weight:600;transition:all .12s;display:flex}.scale-btn:active{transform:scale(.94)}.scale-btn.selected{background:var(--accent);border-color:var(--accent);color:#fff}@media (width<=400px){.scale{flex-direction:column;align-items:stretch;gap:8px}.scale-labels{justify-content:space-between;display:flex}}.submit-wrap{background:linear-gradient(to bottom, #f5f2ea00, var(--bg) 30%);z-index:10;padding:12px 16px 20px;bottom:0;left:0;right:0}.btn-submit{background:var(--accent);color:#fff;border-radius:var(--radius);cursor:pointer;letter-spacing:.02em;border:none;width:100%;max-width:560px;margin:0 auto;padding:16px;font-family:inherit;font-size:17px;font-weight:700;transition:transform .1s,opacity .15s;display:block;box-shadow:0 4px 14px #2d4a2b4d}.btn-submit:active{transform:scale(.98)}.btn-submit:disabled{background:var(--ink-mute);cursor:not-allowed;box-shadow:none;opacity:.7}.err-msg{color:var(--danger);margin-top:6px;font-size:12px;font-weight:500;display:none}.field.error .err-msg{display:block}.overlay{z-index:100;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#1f2a1d80;justify-content:center;align-items:center;padding:20px;display:none;position:fixed;inset:0}.overlay.show{display:flex}.result{border-radius:var(--radius);text-align:center;background:#fff;width:100%;max-width:400px;padding:28px 24px;animation:.25s ease-out pop;box-shadow:0 20px 60px #0000004d}@keyframes pop{0%{opacity:0;transform:scale(.9)translateY(10px)}to{opacity:1;transform:scale(1)translateY(0)}}.result .icon{border-radius:50%;justify-content:center;align-items:center;width:56px;height:56px;margin:0 auto 16px;font-size:32px;font-weight:700;display:flex}.result.success .icon{background:var(--success-bg);color:var(--success)}.result.error .icon{background:var(--danger-bg);color:var(--danger)}.result.warn .icon{background:var(--warn-bg);color:var(--warn)}.result h2{color:var(--ink);margin:0 0 8px;font-size:18px}.result p{color:var(--ink-soft);margin:0 0 20px;font-size:14px;line-height:1.5}.result button{background:var(--accent);color:#fff;border-radius:var(--radius-sm);cursor:pointer;border:none;padding:12px 28px;font-family:inherit;font-size:15px;font-weight:600}.result button.secondary{color:var(--ink-soft);border:1.5px solid var(--line-strong);background:0 0;margin-right:8px}.spinner{vertical-align:middle;border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:16px;height:16px;margin-right:8px;animation:.7s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}