:root{color-scheme:light dark;--bg: #f4f1ea;--surface: #fffdf8;--surface-2: #efebe1;--ink: #1d262b;--muted: #5d6a70;--line: #d9d3c4;--accent: #1f6a5e;--accent-ink: #ffffff;--accent-soft: #dcece7;--warn: #9a5b00;--warn-soft: #fbefd6;--bad: #a52f2f;--bad-soft: #f8e0dc;--ok: #1d6b3f;--ok-soft: #dff0e4;--change: #2456b8;--seat: #ffffff;--seat-empty: #f0ede4;--blocked: repeating-linear-gradient(135deg, #e4dfd2 0 6px, #ece8dc 6px 12px);--shadow: 0 1px 2px rgb(30 30 20 / 8%), 0 6px 20px rgb(30 30 20 / 6%);--radius: 12px;--font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Noto Sans", "Noto Sans CJK TC", "Hiragino Sans", "PingFang TC", "Microsoft JhengHei", sans-serif}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #12181a;--surface: #1a2225;--surface-2: #222c2f;--ink: #e8ece9;--muted: #9aa8a8;--line: #2f3b3e;--accent: #4fb8a4;--accent-ink: #072320;--accent-soft: #1d3a36;--warn: #f0b755;--warn-soft: #3a2f17;--bad: #f08a80;--bad-soft: #3b2220;--ok: #74d39a;--ok-soft: #1b3326;--change: #8fb2ff;--seat: #232e31;--seat-empty: #1b2427;--blocked: repeating-linear-gradient( 135deg, #12181a 0 6px, #172023 6px 12px );--shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 6px 20px rgb(0 0 0 / 25%)}}:root[data-theme=dark]{--bg: #12181a;--surface: #1a2225;--surface-2: #222c2f;--ink: #e8ece9;--muted: #9aa8a8;--line: #2f3b3e;--accent: #4fb8a4;--accent-ink: #072320;--accent-soft: #1d3a36;--warn: #f0b755;--warn-soft: #3a2f17;--bad: #f08a80;--bad-soft: #3b2220;--ok: #74d39a;--ok-soft: #1b3326;--change: #8fb2ff;--seat: #232e31;--seat-empty: #1b2427;--blocked: repeating-linear-gradient(135deg, #12181a 0 6px, #172023 6px 12px);--shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 6px 20px rgb(0 0 0 / 25%)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 var(--font);-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.app{max-width:1280px;margin:0 auto;padding:16px 20px 32px}.topbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 20px;padding-bottom:16px}.brand{display:flex;align-items:center;gap:12px}.brand img{border-radius:8px}.brand h1{font-size:20px;letter-spacing:-.01em;line-height:1.1}.brand p{color:var(--muted);font-size:13px}.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.banner{flex-basis:100%;padding:8px 12px;border-radius:8px;font-size:14px}.banner.is-error{background:var(--bad-soft);color:var(--bad)}.banner.is-preview{background:var(--accent-soft);color:var(--accent);margin:12px 0}.btn,.icon-btn,select,input,textarea{font:inherit;color:inherit}.btn,.icon-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:36px;padding:0 12px;border:1px solid var(--line);border-radius:9px;background:var(--surface);cursor:pointer;transition:background .15s,border-color .15s,transform .1s}.icon-btn{width:36px;padding:0}.icon-btn.quiet{border-color:transparent;background:transparent;color:var(--muted)}.btn:hover:not(:disabled),.icon-btn:hover:not(:disabled){background:var(--surface-2)}.btn:active:not(:disabled),.icon-btn:active:not(:disabled){transform:translateY(1px)}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn.primary:hover:not(:disabled){background:var(--accent);filter:brightness(1.08)}button:disabled{opacity:.45;cursor:not-allowed}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}select,input[type=text],input[type=number],textarea{min-height:36px;padding:6px 10px;border:1px solid var(--line);border-radius:9px;background:var(--surface)}textarea{width:100%;resize:vertical;line-height:1.45}.select select{max-width:190px}.layout{display:grid;grid-template-columns:minmax(300px,380px) minmax(0,1fr);gap:20px;align-items:start}.column{display:grid;gap:20px}.panel{padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow)}.panel h2{margin-bottom:14px;font-size:16px}.field{display:grid;gap:4px;margin-bottom:12px}.field>span{font-size:13px;color:var(--muted)}.field small,.rule-form small{color:var(--muted);font-size:12px}.field.inline{margin:0}.field input[type=number]{width:100%}.row{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.count,.hint{color:var(--muted);font-size:13px}.hint.is-error{color:var(--bad)}.room{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0 0;padding:12px;border:1px solid var(--line);border-radius:10px}.room legend{padding:0 6px;font-size:13px;color:var(--muted)}.room .btn{grid-column:1 / -1}.rules{display:grid;gap:6px;margin:0 0 16px;padding:0;list-style:none}.rule{display:grid;grid-template-columns:auto auto 1fr auto;align-items:center;gap:10px;padding:8px 8px 8px 10px;border:1px solid var(--line);border-radius:10px;transition:background .2s,border-color .2s,opacity .2s}.rule.is-off{opacity:.55}.rule.is-off .rule-text{text-decoration:line-through}.rule.is-conflict{border-color:var(--bad);background:var(--bad-soft)}.rule-icon{display:grid;color:var(--muted)}.rule-text{font-size:14px}.tag{display:inline-block;white-space:nowrap;margin-left:8px;padding:1px 7px;border-radius:99px;background:var(--bad);color:var(--bg);font-size:11px;font-style:normal}.switch{position:relative;display:inline-block;width:34px;height:20px}.switch input{position:absolute;inset:0;margin:0;opacity:0;cursor:pointer}.switch .track{position:absolute;inset:0;border-radius:99px;background:var(--line);transition:background .2s;pointer-events:none}.switch .track:after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:#fff;transition:transform .2s}.switch input:checked+.track{background:var(--accent)}.switch input:checked+.track:after{transform:translate(14px)}.switch input:focus-visible+.track{outline:2px solid var(--accent);outline-offset:2px}.rule-form{display:grid;gap:0;padding-top:14px;border-top:1px dashed var(--line)}.rule-form .btn{justify-self:start}.pair{display:grid;grid-template-columns:1fr 1fr;gap:10px}.status{display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px;margin-bottom:16px;padding:12px 14px;border-radius:10px;background:var(--surface-2);animation:rise .25s ease-out}.status.is-idle:empty{display:none}.status>p{flex:1 1 200px}.status.is-ok{background:var(--ok-soft);color:var(--ok)}.status.is-warn{background:var(--warn-soft);color:var(--warn)}.status.is-bad{background:var(--bad-soft);color:var(--bad)}.status.is-working{display:block}.status-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.status-head h3{font-size:15px}.elapsed{margin-left:6px;color:var(--muted);font-variant-numeric:tabular-nums}.bar{height:4px;margin-top:10px;overflow:hidden;border-radius:4px;background:var(--line)}.bar i{display:block;width:35%;height:100%;border-radius:4px;background:var(--accent);animation:slide 1.1s ease-in-out infinite}.conflict{display:block;color:var(--ink);border:1px solid var(--bad)}.conflict .status-head{justify-content:flex-start;color:var(--bad)}.conflict-list{margin:10px 0 8px;padding-left:22px}.conflict-list li{padding:2px 0}.repair-title{margin:14px 0 8px;font-size:14px}.repairs{display:grid;gap:8px;margin:0;padding:0;list-style:none}.repair{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 12px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);transition:border-color .2s,box-shadow .2s}.repair.is-open{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.repair-main{display:grid;gap:2px;flex:1 1 220px}.repair-main strong{font-weight:600}.repair-result{color:var(--muted);font-size:13px}.repair-actions{display:flex;flex-wrap:wrap;align-items:center;gap:8px;flex-basis:100%}.repair-actions .hint{flex-basis:100%}.plan-body{display:grid;gap:16px}.plan-side:empty{display:none}.plan-side .status:last-child{margin-bottom:0}@media(min-width:1180px){.plan-body:has(.conflict,.is-preview){grid-template-columns:minmax(280px,360px) minmax(0,1fr);align-items:start}}.seatmap{display:grid;gap:12px}.board{padding:6px;border-radius:8px;background:var(--accent);color:var(--accent-ink);font-size:12px;letter-spacing:.08em;text-align:center;text-transform:uppercase}.grid{display:grid;gap:8px}.seat{position:relative;display:grid;place-items:center;min-width:0;min-height:58px;padding:4px;border:1.5px solid var(--line);border-radius:10px;background:var(--seat);cursor:pointer;transition:transform .2s,box-shadow .2s,border-color .2s,background .2s}.seat.is-empty{background:var(--seat-empty);border-style:dashed}.seat.is-blocked{background:var(--blocked);border-style:solid;cursor:default}.is-editing .seat{cursor:copy}.is-editing .seat.is-blocked{cursor:cell}.seat-name{max-width:100%;overflow:hidden;font-weight:600;font-size:14px;text-overflow:ellipsis;white-space:nowrap}.seat-note{color:var(--muted);font-size:18px}.seat-pin{position:absolute;top:3px;right:4px;display:grid;color:var(--muted)}.seat:hover:not(.is-blocked){border-color:var(--accent)}.seat.is-selected{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);transform:translateY(-2px)}.seat.is-over{background:var(--accent-soft);border-color:var(--accent);transform:scale(1.04)}.seat.is-focus{border-color:var(--bad);background:var(--bad-soft);animation:pulse 1.8s ease-in-out 2}.seat.is-broken{border-color:var(--bad);border-style:dashed;background:var(--bad-soft)}.seat.is-changed{border-color:var(--change);box-shadow:0 0 0 3px color-mix(in srgb,var(--change) 28%,transparent);animation:pop .45s ease-out}.tray h3{margin-bottom:6px;font-size:13px;color:var(--muted)}.chips{display:flex;flex-wrap:wrap;gap:6px}.chip{padding:4px 12px;border:1px solid var(--line);border-radius:99px;background:var(--surface);cursor:pointer}.chip.is-selected{border-color:var(--accent);background:var(--accent-soft)}.selection{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px}.plan-footer{display:grid;gap:12px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line)}.violations{padding:10px 12px;border-radius:10px;background:var(--bad-soft);color:var(--bad)}.violations ul{margin:6px 0 0;padding-left:22px;color:var(--ink)}.valid{display:flex;align-items:center;gap:6px;color:var(--ok)}.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;margin-top:24px;color:var(--muted);font-size:13px}.foot a{color:var(--accent)}@keyframes rise{0%{opacity:0;transform:translateY(-4px)}}@keyframes slide{0%{transform:translate(-100%)}to{transform:translate(300%)}}@keyframes pulse{50%{box-shadow:0 0 0 5px color-mix(in srgb,var(--bad) 25%,transparent)}}@keyframes pop{0%{transform:scale(.92)}60%{transform:scale(1.04)}}@media(max-width:900px){.layout{grid-template-columns:minmax(0,1fr)}.column.wide{order:-1}.app{padding:12px}.grid{gap:5px}.seat{min-height:48px}.seat-name{font-size:12px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.print-sheet{display:none}@media print{body{background:#fff;color:#000;font-size:12pt}.app{display:none}.print-sheet{display:block;font-family:var(--font)}.print-sheet h1{margin-bottom:8pt;font-size:20pt}.print-sheet h1 small{font-size:12pt;font-weight:400;color:#444}.print-sheet h2{margin:16pt 0 6pt;font-size:13pt}.print-board{margin-bottom:6pt;padding:4pt;border:1.5pt solid #000;font-size:10pt;letter-spacing:.08em;text-align:center;text-transform:uppercase}.print-grid{width:100%;border-collapse:separate;border-spacing:5pt;table-layout:fixed}.print-grid td{height:40pt;padding:2pt;border:1pt solid #000;border-radius:4pt;font-weight:600;text-align:center;overflow-wrap:anywhere}.print-grid td.is-blocked{border-style:dotted;background:repeating-linear-gradient(135deg,#ddd 0 4pt,#fff 4pt 8pt)}.print-rules,.print-list{margin:0;padding-left:16pt}.print-list{columns:2;padding:0;list-style:none}.print-list li{display:flex;justify-content:space-between;gap:12pt;break-inside:avoid;padding:1pt 0;border-bottom:.5pt solid #bbb}.print-foot{margin-top:14pt;color:#555;font-size:9pt}}