:root{--bg: #f4f6f9;--panel: #ffffff;--ink: #1f2933;--ink-soft: #5a6b7b;--line: #dfe5ec;--accent: #2f6fb0;--accent-dark: #1f5a96;--good: #2c8a4a;--warn: #b9772a;--danger: #c0392b;--shadow: 0 1px 3px rgba(31, 41, 51, .12), 0 6px 18px rgba(31, 41, 51, .08);--radius: 10px;font-family:Segoe UI,system-ui,-apple-system,Roboto,Arial,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--ink);font-size:14px;-webkit-font-smoothing:antialiased}button{font-family:inherit;font-size:inherit;cursor:pointer}.app{display:grid;grid-template-columns:290px 1fr;grid-template-rows:100%;height:100%;overflow:hidden}.app:has(.details){grid-template-columns:290px 1fr 360px}.plan-area{position:relative;display:flex;flex-direction:column;min-width:0;background:linear-gradient(180deg,#fbfcfe,#eef2f7)}.sidebar{background:var(--panel);border-right:1px solid var(--line);padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:18px}.brand{display:flex;gap:10px;align-items:center}.brand-mark{font-size:26px;line-height:1;width:40px;height:40px;display:grid;place-items:center;background:var(--accent);color:#fff;border-radius:10px}.brand-name{font-size:12px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.06em}.brand .textfield{font-weight:600;font-size:16px;border:none;border-bottom:1px dashed transparent;padding:2px 0;width:100%}.brand .textfield:hover,.brand .textfield:focus{border-bottom-color:var(--line);outline:none}.sidebar-actions{display:flex;flex-direction:column;gap:8px}.section h3{margin:0 0 10px;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft)}.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.section-head h3{margin:0}.room-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}.room-item{display:flex;align-items:center;gap:2px;border:1px solid transparent;border-radius:8px}.room-item:hover{background:#eef3f8}.room-item.is-active{background:#e6f0fa;border-color:#c5ddf3}.room-item.is-hidden{opacity:.55}.room-item.is-hidden .room-name{text-decoration:line-through}.room-link{flex:1;min-width:0;display:flex;align-items:center;gap:8px;padding:8px 10px;background:transparent;border:none;border-radius:8px;text-align:left;color:var(--ink)}.room-item-actions{display:flex;gap:2px;padding-right:4px}.row-icon{border:none;background:transparent;width:26px;height:26px;border-radius:6px;font-size:13px;line-height:1;color:var(--ink-soft);opacity:.6}.row-icon:hover{background:#fff;color:var(--accent-dark);opacity:1;box-shadow:var(--shadow)}.room-avail{color:var(--good);font-size:12px}.total-note{font-size:11px;color:var(--ink-soft);padding-top:6px;margin-top:2px;border-top:1px 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transparent;font-weight:600}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-dark)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:#fff;border-color:var(--line);color:var(--ink)}.btn-secondary:hover:not(:disabled){border-color:var(--accent);color:var(--accent-dark)}.btn-secondary:disabled{opacity:.45;cursor:not-allowed}.undo-group{display:flex;gap:6px}.btn-warn{background:#fbeede;color:var(--warn);border-color:#f0d6ad}.btn-small{padding:5px 10px;border-radius:7px;border:1px solid var(--line);background:#fff;font-size:13px}.btn-small:hover{border-color:var(--accent)}.btn-small:disabled{opacity:.5;cursor:not-allowed}.btn-link,.btn-danger-link{background:none;border:none;padding:4px 0;font-weight:600}.btn-link{color:var(--accent)}.btn-danger-link{color:var(--danger)}.btn-reset{margin-top:8px;width:100%;background:none;border:1px dashed var(--line);color:var(--ink-soft);padding:7px;border-radius:8px}.btn-reset:hover{border-color:var(--warn);color:var(--warn)}.backup-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.footnote{font-size:11px;color:var(--ink-soft);margin:auto 0 0;line-height:1.5}.empty,.hint{font-size:12px;color:var(--ink-soft);margin:4px 0;line-height:1.5}.plan-toolbar{position:absolute;top:12px;left:12px;right:12px;z-index:5;display:flex;gap:10px;align-items:flex-start;pointer-events:none}.plan-toolbar>*{pointer-events:auto}.draw-banner{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--accent);box-shadow:var(--shadow);padding:8px 12px;border-radius:8px;font-size:13px;max-width:600px}kbd{font-family:inherit;font-size:11px;background:#eef2f7;border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;padding:1px 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var(--line);border-radius:8px;padding:8px;margin-bottom:8px;background:#fcfdfe}.door-row{display:flex;gap:6px;align-items:flex-end;margin-bottom:6px}.door-row:last-child{margin-bottom:0}.door-row>label{display:flex;flex-direction:column;gap:3px;font-size:11px;color:var(--ink-soft);flex:1;min-width:0}.door-row select{font-size:13px;padding:6px}.door-row .numfield input{padding:5px 24px 5px 6px;font-size:13px}.door-row .numfield .suffix{right:5px;font-size:10px}.door-row .btn-x{align-self:flex-end}.saves-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}.save-item{display:flex;align-items:center;gap:2px;border:1px solid transparent;border-radius:8px}.save-item:hover{background:#eef3f8}.save-load{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px;padding:7px 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