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solid var(--border)}.start-card-blank:hover:not(:disabled){border-color:color-mix(in srgb, var(--text) 35%, var(--border));background:color-mix(in srgb, var(--surface-2) 50%, var(--surface))}.start-card-icon{background:var(--accent-soft);width:68px;height:68px;color:var(--accent-text);border-radius:18px;place-items:center;margin-bottom:6px;display:grid}.start-card-blank .start-card-icon{background:var(--surface-2);color:var(--text)}.start-card-title{letter-spacing:-.02em;font-size:21px;font-weight:800;line-height:1.2}.start-card-limit{background:var(--accent-soft);color:var(--accent-text);border-radius:999px;padding:3px 12px;font-size:13px;font-weight:600}.start-card-blank .start-card-limit{background:var(--surface-2);color:var(--muted)}.start-card-limit.exhausted{background:var(--warning-bg);color:var(--warning-text)}.start-card .dropzone-button,.start-card-action{margin-top:8px}.start-card-action{border:1.5px solid var(--primary);min-height:48px;color:var(--text);border-radius:12px;justify-content:center;align-items:center;padding:12px 24px;font-size:16px;font-weight:700;display:inline-flex}.start-card-blank:hover .start-card-action{background:var(--primary);color:var(--primary-text)}.start-cards .blank-plan.open{border-radius:18px;min-height:320px;margin-top:0}.my-plan-trash{place-items:center;width:52px;padding:0;display:grid}.app-topbar-logo{text-decoration:none}@media (width<=720px){.start-cards{grid-template-columns:minmax(0,1fr);gap:12px}.start-card,.start-cards .blank-plan.open{min-height:0;padding:24px 16px}.start-card-icon{width:56px;height:56px}.start-card .dropzone-button,.start-card-action{width:100%}}.chat-form{padding:10px 12px 12px;display:block}.chat-input{position:relative}.chat-input textarea{resize:none;scrollbar-width:thin;border-radius:12px;padding:10px 50px 10px 12px;line-height:1.45;display:block;overflow-y:hidden}.chat-send{background:var(--primary);width:32px;height:32px;color:var(--primary-text);border:0;border-radius:8px;place-items:center;padding:0;display:grid;position:absolute;bottom:7px;right:7px}.chat-send:hover:not(:disabled){background:color-mix(in srgb, var(--primary) 88%, #fff)}.chat-send:disabled{opacity:1;background:var(--surface-2);color:color-mix(in srgb, var(--muted) 60%, transparent)}@media (pointer:coarse){.chat-input textarea{padding-right:56px;font-size:16px}.chat-send{width:40px;height:40px;bottom:5px;right:5px}}@media (width<=820px){.workspace[data-pane=chat]:has(.chat-input textarea:focus) .workspace-tabs{display:none}.workspace[data-pane=chat]:has(.chat-input textarea:focus) .workspace-side>:not(.chat){display:none}}.level-bar{z-index:3;flex-direction:column;align-items:flex-end;gap:6px;max-width:calc(100% - 24px);display:flex;position:absolute;top:10px;right:12px}.level-tabs{scrollbar-width:none;max-width:100%;box-shadow:var(--shadow);background:#f3f0ecf0;overflow-x:auto}.level-tabs button{white-space:nowrap;flex:none;padding:4px 10px;font-size:13px}.level-tabs .level-more,.level-tabs .level-add{min-width:30px;padding:4px 8px;font-size:16px;line-height:1}.level-popover{border:1px solid var(--border);background:var(--surface);border-radius:12px;flex-direction:column;gap:10px;width:260px;max-width:calc(100vw - 32px);padding:12px;font-size:13px;display:flex;box-shadow:0 10px 32px #081f3e2e}.level-field{grid-template-columns:1fr 84px auto;align-items:center;gap:6px;display:grid}.level-field.level-name{grid-template-columns:auto 1fr}.level-field input{min-width:0;padding:4px 8px;font-size:13px}.level-field em{color:var(--muted);font-style:normal}.level-check{cursor:pointer;align-items:flex-start;gap:8px;display:flex}.level-check input{margin-top:3px}.level-popover .muted{margin:0}.level-remove{color:var(--danger);background:0 0;border:0;align-self:flex-start;padding:4px 0;font-size:13px;font-weight:600}.level-remove:hover{text-decoration:underline}.view-area:has(.level-bar) .canvas-status{max-width:calc(100% - 300px)}.view-area:has(.level-bar) .view3d-controls{right:260px}@media (width<=820px){.level-bar{top:8px;right:8px}.view-area:has(.level-bar) .view3d-controls{right:12px}}.rooms-level{color:var(--text);font-weight:700}.rooms-total{border-top:1px solid var(--border);padding-top:8px}.stair-picker .icon-button{width:40px}