:root{--bg:#f4f5fb;--card:#ffffff;--text:#1f2330;--muted:#6b7280;--line:#e8eaf2;--accent:#6366f1;--accent-soft:#eef0ff;--accent-2:#8b5cf6;--male:#dbeafe;--male-line:#93c5fd;--male-text:#1d4ed8;--rose:#ffe4ef;--rose-line:#fbcfe0;--rose-text:#be185d;--partner:#fff4e6;--partner-line:#fdba74;--ok:#10b981;--danger:#ef4444;--shadow:0 10px 30px -12px rgba(34,40,79,.25);--shadow-sm:0 2px 8px rgba(34,40,79,.08);--radius:18px}*{box-sizing:border-box}body{margin:0;padding:32px 16px 64px;font-family:Pretendard,Apple SD Gothic Neo,Malgun Gothic,system-ui,-apple-system,sans-serif;background:radial-gradient(1200px 600px at 50% -200px,#e9ebff 0%,var(--bg) 60%);color:var(--text);-webkit-font-smoothing:antialiased}.wrap{max-width:880px;margin:0 auto;position:relative}header.hero{text-align:center;margin-bottom:28px}header.hero h1{font-size:30px;font-weight:800;margin:0 0 8px;letter-spacing:-.5px;background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}header.hero p{margin:0;color:var(--muted);font-size:14px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:22px;margin-bottom:20px}.card h2{font-size:16px;font-weight:700;margin:0 0 16px;display:flex;align-items:center;gap:8px}.card h2 .dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}.section-toggle{width:100%;text-align:left;background:none;border:none;cursor:pointer;font-size:16px;font-weight:700;color:var(--text);display:flex;align-items:center;justify-content:space-between;padding:0}.section-toggle .chev{transition:transform .25s;color:var(--muted);font-size:13px}.section-toggle.open .chev{transform:rotate(180deg)}.collapse{overflow:hidden;transition:max-height .3s ease;max-height:0}.collapse.open{max-height:3000px}.collapse-inner{padding-top:18px}.tabs{display:flex;gap:6px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:6px;margin-bottom:20px;box-shadow:var(--shadow-sm);position:sticky;top:8px;z-index:50}.tab-btn{flex:1;border:none;background:none;padding:11px 8px;border-radius:10px;font-size:14px;font-weight:700;color:var(--muted);cursor:pointer;font-family:inherit;transition:all .15s;white-space:nowrap}.tab-btn:hover{background:var(--accent-soft);color:var(--accent)}.tab-btn.active{background:var(--accent);color:#fff;box-shadow:0 4px 12px -4px var(--accent)}.tab-btn.active:hover{color:#fff}.view{display:none;animation:viewIn .25s ease both}.view.active{display:block}@keyframes viewIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media (max-width:600px){.tab-btn{font-size:12px;padding:10px 4px}}@media print{.tabs,.hero p,.toolbar,#seatInfo,.legend,#view-admin,#view-rules,#view-history,.btn,.mode-btn,.tab-btn{display:none!important}#view-place{display:block!important}body{background:#fff;padding:0}.card{box-shadow:none;border:none;margin:0;padding:0}.card h2 .dot{display:none}.seat{box-shadow:none;-webkit-print-color-adjust:exact;print-color-adjust:exact}.name-pill{-webkit-print-color-adjust:exact;print-color-adjust:exact}}label.fld{display:block;font-size:13px;font-weight:600;color:var(--muted);margin:0 0 6px}textarea,input[type=text],input[type=number],input[type=month]{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:12px;font-size:14px;font-family:inherit;background:#fbfbfe;color:var(--text);resize:vertical;transition:border-color .15s,box-shadow .15s}textarea:focus,input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media (max-width:620px){.grid2{grid-template-columns:1fr}}.btn{border:none;border-radius:12px;padding:10px 18px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;transition:transform .08s,box-shadow .15s,background .15s;display:inline-flex;align-items:center;gap:6px}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px -6px var(--accent)}.btn-primary:hover{background:#5457e0}.btn-ghost{background:var(--accent-soft);color:var(--accent)}.btn-ghost:hover{background:#e3e6ff}.btn-soft{background:#f1f2f7;color:var(--text)}.btn-soft:hover{background:#e9ebf2}.btn-sm{padding:6px 12px;font-size:13px;border-radius:9px}.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end;justify-content:center}.toolbar .col{display:flex;flex-direction:column;gap:6px}.seat-grid{display:grid;gap:12px;justify-content:center;margin:6px auto 0}.seat{min-height:64px;border-radius:14px;border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;text-align:center;font-size:14px;font-weight:600;padding:8px 6px;position:relative;box-shadow:var(--shadow-sm);transition:transform .12s,box-shadow .15s}.seat:not(.empty):hover{transform:translateY(-3px);box-shadow:var(--shadow)}.seat .lbl{position:absolute;top:5px;left:8px;font-size:10px;font-weight:700;color:var(--muted);opacity:.6}.seat.empty{background:transparent;border:none;box-shadow:none;min-height:0}.seat.male-only{border-color:#5ed3e0}.seat .male-badge{position:absolute;bottom:4px;right:7px;font-size:10px;font-weight:800;color:#0e7490;opacity:.8;pointer-events:none}.name-pill{padding:4px 12px;border-radius:999px;font-size:14px;font-weight:700;line-height:1.2}.name-pill.male{background:#cffafe;color:#0e7490}.name-pill.female{background:#ffedd5;color:#c2410c}.anim .name-pill{animation:popIn .35s cubic-bezier(.2,.8,.3,1.2) both}@keyframes popIn{0%{opacity:0;transform:scale(.6) translateY(6px)}to{opacity:1;transform:scale(1) translateY(0)}}.editor-grid{display:grid;gap:8px;justify-content:center;margin:14px auto 0}.ecell{height:54px;border-radius:12px;border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;font-size:11px;font-weight:700;color:var(--text);-webkit-user-select:none;user-select:none;transition:transform .08s,box-shadow .12s,background .12s}.ecell:hover{box-shadow:0 0 0 2px var(--accent-soft)}.ecell.off{background:repeating-linear-gradient(45deg,#f5f6fb,#f5f6fb 6px,#eef0f7 6px,#eef0f7 12px);border-style:dashed;color:#c2c6d6}.ecell .hint-tag{position:absolute;bottom:3px;left:0;right:0;font-size:9px;font-weight:700;opacity:0;transition:opacity .12s}.ecell.off .hint-tag{opacity:1;color:#b9bdcf}.seat-mode .ecell.off:hover .hint-tag{opacity:1;color:var(--accent)}.seat-mode .ecell:not(.off):hover .hint-tag{opacity:1;color:var(--danger)}.editor-grid.drag-mode{touch-action:none}.editor-grid.painting .ecell{transition:none}.ecell.male{background:#cffafe;border-color:#5ed3e0;color:#0e7490;font-weight:800}.ecell.sel{box-shadow:0 0 0 3px var(--accent)}.ecell .pg{position:absolute;bottom:3px;right:5px;font-size:9px;color:var(--partner-line);font-weight:800}.mode-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}.mode-btn{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 14px;font-size:13px;font-weight:600;cursor:pointer;color:var(--muted);transition:all .12s}.mode-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.chip{background:var(--partner);border:1px solid var(--partner-line);color:#b45309;border-radius:999px;padding:6px 12px;font-size:12px;font-weight:600;display:flex;align-items:center;gap:8px}.chip button{border:none;background:none;cursor:pointer;color:#b45309;font-weight:800;font-size:14px;line-height:1}.hint{font-size:12px;color:var(--muted);line-height:1.6;margin-top:10px}.legend{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;margin-top:14px;font-size:12px;color:var(--muted)}.legend span{display:inline-flex;align-items:center;gap:6px}.sw{width:14px;height:14px;border-radius:5px;display:inline-block;border:1px solid var(--line)}.history-block{margin-bottom:14px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fcfcff}.history-block .htitle{font-size:14px;font-weight:700;margin:0;color:var(--text);cursor:pointer;display:flex;align-items:center;gap:10px;padding:14px 16px;-webkit-user-select:none;user-select:none;transition:background .12s}.history-block .htitle:hover{background:var(--accent-soft)}.history-block .htitle .badge{background:var(--accent-soft);color:var(--accent);padding:3px 11px;border-radius:999px;font-size:12px;font-weight:700}.history-block .htitle .count{margin-left:auto;font-size:12px;font-weight:600;color:var(--muted)}.history-block .htitle .hchev{font-size:11px;color:var(--muted);transition:transform .25s}.history-block.open .htitle .hchev{transform:rotate(180deg)}.history-body{max-height:0;overflow:hidden;transition:max-height .3s ease}.history-block.open .history-body{max-height:1400px}.history-body-inner{padding:6px 16px 18px}.empty-state{text-align:center;color:var(--muted);font-size:14px;padding:24px 0}#loadingOverlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:#1f23308c;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:9999;justify-content:center;align-items:center}#loadingOverlay.show{display:flex}.loading-content{background:#fff;padding:32px 40px;border-radius:20px;text-align:center;box-shadow:var(--shadow)}.spinner{border:5px solid var(--accent-soft);border-top:5px solid var(--accent);border-radius:50%;width:48px;height:48px;animation:spin 1s linear infinite;margin:0 auto 16px}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{font-size:15px;font-weight:600;color:var(--text)}.toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%) translateY(20px);background:#1f2330;color:#fff;padding:12px 22px;border-radius:12px;font-size:14px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:all .3s;z-index:10000}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}.modal-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:#1f233080;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:10001;justify-content:center;align-items:center;padding:20px}.modal-overlay.show{display:flex}.modal-box{background:#fff;border-radius:18px;box-shadow:var(--shadow);max-width:380px;width:100%;padding:24px}.modal-msg{font-size:15px;line-height:1.6;color:var(--text);margin-bottom:20px;white-space:pre-line}.modal-actions{display:flex;gap:10px;justify-content:flex-end}.pick-list{display:flex;flex-direction:column;gap:6px;max-height:50vh;overflow:auto;margin-bottom:16px}.pick-item{text-align:left;border:1px solid var(--line);background:#fbfbfe;border-radius:10px;padding:10px 12px;font-size:14px;font-weight:600;color:var(--text);cursor:pointer;font-family:inherit;transition:background .12s}.pick-item:hover{background:var(--accent-soft);color:var(--accent)}.pick-item.cur{border-color:var(--accent);color:var(--accent)}:root[data-theme=dark] .pick-item{background:#11141c}.rules{display:flex;flex-direction:column;gap:10px;margin-top:8px}.rule-item{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fbfbfe}.rule-item b{font-size:14px}.rule-desc{font-size:12px;color:var(--muted);margin-top:2px}.switch{position:relative;display:inline-block;width:46px;height:26px;flex:none}.switch input{opacity:0;width:0;height:0}.switch .slider{position:absolute;top:0;right:0;bottom:0;left:0;background:#cfd3e3;border-radius:999px;transition:.2s;cursor:pointer}.switch .slider:before{content:"";position:absolute;height:20px;width:20px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s;box-shadow:0 1px 3px #0003}.switch input:checked+.slider{background:var(--accent)}.switch input:checked+.slider:before{transform:translate(20px)}@media (max-width:600px){body{padding:18px 10px 48px}header.hero h1{font-size:24px}.card{padding:16px;border-radius:14px}.seat{min-height:54px;font-size:13px}.name-pill{font-size:12px;padding:3px 9px}.seat-grid{gap:7px!important}.editor-grid{gap:6px!important}.editor-grid{grid-template-columns:repeat(var(--ecols,4),1fr)!important;width:100%}.ecell{height:46px;font-size:10px}.toolbar{gap:8px}.btn{padding:9px 14px;font-size:13px}.mode-btn{padding:7px 10px;font-size:12px}.legend{gap:10px;font-size:11px}}.theme-toggle{position:absolute;top:2px;right:2px;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--card);color:var(--text);cursor:pointer;font-size:18px;line-height:1;box-shadow:var(--shadow-sm);z-index:60;transition:transform .1s,background .15s}.theme-toggle:hover{transform:translateY(-1px)}@media (max-width:600px){.theme-toggle{width:38px;height:38px;font-size:16px}}:root[data-theme=dark]{--bg:#0f1117;--card:#1a1d27;--text:#e7e9f0;--muted:#9aa0b4;--line:#2b2f3c;--accent:#818cf8;--accent-soft:#262a3d;--accent-2:#a78bfa;--shadow:0 12px 32px -12px rgba(0,0,0,.7);--shadow-sm:0 2px 10px rgba(0,0,0,.45)}:root[data-theme=dark] body{background:radial-gradient(1200px 600px at 50% -200px,#1b1f3a 0%,var(--bg) 60%)}:root[data-theme=dark] textarea,:root[data-theme=dark] input[type=text],:root[data-theme=dark] input[type=number],:root[data-theme=dark] input[type=month]{background:#11141c;color:var(--text);border-color:var(--line)}:root[data-theme=dark] .tabs,:root[data-theme=dark] .modal-box,:root[data-theme=dark] .seat,:root[data-theme=dark] .ecell,:root[data-theme=dark] .mode-btn{background:var(--card);border-color:var(--line);color:var(--text)}:root[data-theme=dark] .rule-item{background:#11141c;border-color:var(--line)}:root[data-theme=dark] .history-block{background:#161922;border-color:var(--line)}:root[data-theme=dark] .btn-soft{background:#2a2f3c;color:var(--text)}:root[data-theme=dark] .btn-soft:hover{background:#333a48}:root[data-theme=dark] .ecell.off{background:repeating-linear-gradient(45deg,#161922,#161922 6px,#1d2130 6px,#1d2130 12px);color:#5b6172}:root[data-theme=dark] .switch .slider{background:#363b4a}:root[data-theme=dark] .switch .slider:before{background:#9aa0b4}:root[data-theme=dark] .switch input:checked+.slider{background:#818cf8}:root[data-theme=dark] .switch input:checked+.slider:before{background:#fff}:root[data-theme=dark] .seat.male-only{border-color:#1c6b78}:root[data-theme=dark] .seat .male-badge{color:#67e8f9}:root[data-theme=dark] .ecell.male{background:#0c3a43;border-color:#1c6b78;color:#67e8f9}:root[data-theme=dark] .seat.empty{background:transparent}:root[data-theme=dark] .sw[style*="#fff"]{background:var(--card)!important;border-color:var(--line)!important}:root[data-theme=dark] .name-pill.male{background:#0c3a43;color:#67e8f9}:root[data-theme=dark] .name-pill.female{background:#3a2410;color:#fdba74}:root[data-theme=dark] .sw[style*="#cffafe"]{background:#0c3a43!important;border-color:#1c6b78!important}:root[data-theme=dark] .sw[style*="#ffedd5"]{background:#3a2410!important;border-color:#7c4a1e!important}:root[data-theme=dark] .sw[style*="#5ed3e0"]{border-color:#1c6b78!important}:root[data-theme=dark] .toast{background:#2a2f3c}.notice{display:flex;align-items:center;gap:14px;background:var(--accent-soft);border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-bottom:16px}.notice[hidden]{display:none}.notice-ico{font-size:22px;line-height:1}.notice-txt{display:flex;flex-direction:column;gap:2px}.notice-txt b{font-size:14px;color:var(--text)}.notice-txt span{font-size:12px;color:var(--muted)}.notice .btn{margin-left:auto;white-space:nowrap}.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}@media (max-width:600px){.notice{flex-wrap:wrap}.notice .btn{margin-left:0;width:100%;justify-content:center}}.adv-section{margin-top:18px;border-top:1px solid var(--line);padding-top:16px}.adv-section .section-toggle .chev{font-size:11px}.month-field{position:relative;display:inline-block}.month-field input[readonly]{cursor:pointer}.month-pop{position:absolute;top:calc(100% + 6px);left:0;z-index:120;width:230px;background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:12px;animation:viewIn .18s ease both}.month-pop[hidden]{display:none}.month-pop-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.month-year{font-size:14px;font-weight:700;color:var(--text)}.month-nav{border:1px solid var(--line);background:var(--accent-soft);color:var(--accent);width:30px;height:30px;border-radius:9px;cursor:pointer;font-size:12px;font-weight:800;line-height:1;font-family:inherit;transition:background .12s}.month-nav:hover{background:#e3e6ff}.month-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.month-cell{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:10px;padding:10px 0;font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;transition:background .12s,color .12s,border-color .12s}.month-cell:hover{background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}.month-cell.sel{background:var(--accent);color:#fff;border-color:var(--accent)}:root[data-theme=dark] .month-cell{background:#11141c;border-color:var(--line)}:root[data-theme=dark] .month-nav{background:var(--accent-soft);color:var(--accent)}:root[data-theme=dark] .month-nav:hover{background:#30354c}:root[data-theme=dark] .month-cell:hover{background:var(--accent-soft);color:var(--accent)}:root[data-theme=dark] .month-cell.sel{background:var(--accent);color:#fff}.stepper{display:inline-flex;align-items:stretch;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fbfbfe}.stepper input[type=number]{width:56px;text-align:center;border:none;border-radius:0;background:transparent;-moz-appearance:textfield}.stepper input[type=number]::-webkit-outer-spin-button,.stepper input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.stepper input:focus{box-shadow:none;outline:none}.step-btn{border:none;background:var(--accent-soft);color:var(--accent);width:40px;font-size:20px;font-weight:800;line-height:1;cursor:pointer;font-family:inherit;transition:background .12s}.step-btn:hover{background:#e3e6ff}.step-btn:active{background:#d7dbff}:root[data-theme=dark] .stepper{background:#11141c}:root[data-theme=dark] .step-btn{background:var(--accent-soft);color:var(--accent)}:root[data-theme=dark] .step-btn:hover{background:#30354c}.htitle .hdel{border:none;background:none;cursor:pointer;font-size:14px;line-height:1;opacity:.5;padding:3px 6px;border-radius:8px;transition:opacity .12s,background .12s}.htitle .hdel:hover{opacity:1;background:#ef444424}.editor-wrap{position:relative;width:max-content;max-width:100%;margin:14px auto 54px}.editor-wrap .editor-grid{margin:0}.edge-grp{position:absolute;display:flex;z-index:2}.edge-grp.edge-col{right:-30px;top:50%;transform:translateY(-50%);flex-direction:column;gap:4px}.edge-grp.edge-row{bottom:-30px;left:50%;transform:translate(-50%);flex-direction:row;gap:4px}.edge-add{width:24px;height:24px;border:1.5px dashed var(--accent);background:var(--accent-soft);color:var(--accent);font-size:16px;font-weight:800;line-height:1;cursor:pointer;border-radius:8px;padding:0;display:flex;align-items:center;justify-content:center;transition:background .12s}.edge-add:hover{background:#e3e6ff}:root[data-theme=dark] .edge-add{background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}:root[data-theme=dark] .edge-add:hover{background:#30354c}@media (max-width:600px){.edge-grp{display:none}.editor-wrap{width:100%;margin:14px auto 0}}.ecell.pinned{border-color:#7cc0f5;background:#eaf4ff}.ecell .pin-tag{position:absolute;top:2px;right:3px;font-size:8px;font-weight:800;color:#0063a6;max-width:92%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.seat.pinned{border:1.5px dashed #7cc0f5}.chip.pin{background:#d9ecff;border-color:#7cc0f5;color:#0063a6}.chip.pin button{color:#0063a6}:root[data-theme=dark] .ecell.pinned{background:#0072b22e;border-color:#0072b28c}:root[data-theme=dark] .ecell .pin-tag{color:#74b9f0}:root[data-theme=dark] .seat.pinned{border-color:#0072b299}:root[data-theme=dark] .chip.pin{background:#0072b238;border-color:#0072b28c;color:#74b9f0}:root[data-theme=dark] .chip.pin button{color:#74b9f0}.chip.sep{background:#ffe6d5;border-color:#f5a877;color:#b5460a}.chip.sep button{color:#b5460a}.chip.sep-name{cursor:pointer;background:#fff;border-color:var(--line);color:var(--text);-webkit-user-select:none;user-select:none}.chip.sep-name.on{background:var(--accent);border-color:var(--accent);color:#fff}:root[data-theme=dark] .chip.sep{background:#d55e0038;border-color:#d55e008c;color:#f0975a}:root[data-theme=dark] .chip.sep button{color:#f0975a}:root[data-theme=dark] .chip.sep-name{background:var(--card);color:var(--text)}:root[data-theme=dark] .chip.sep-name.on{background:var(--accent);color:#fff}#swapBtn.active{background:var(--accent);color:#fff}.seat-grid.swap-mode .seat:not(.empty){cursor:pointer}.seat.swap-sel{box-shadow:0 0 0 3px var(--accent)}.name-pill.slot-spin{background:var(--accent-soft);color:var(--accent);opacity:.9}.name-pill.slot-final{animation:popIn .3s cubic-bezier(.2,.8,.3,1.2) both}