:root{--ink:#1f2933;--muted:#6b7280;--bg:#f8fafc;--error:#b91c1c}*{box-sizing:border-box}body{margin:0;font-family:system-ui,sans-serif;color:var(--ink);background:var(--bg)}main{max-width:960px;margin:0 auto;padding:24px 16px}.toolbar{display:flex;flex-wrap:wrap;gap:16px;align-items:end;margin-bottom:16px}.unit-selector{display:flex;gap:12px}.length-input{display:grid;grid-gap:4px;gap:4px}.length-input input[aria-invalid=true]{border-color:var(--error)}.length-input [role=alert]{margin:0;color:var(--error);font-size:.85rem}.plan{background:#fff;border:1px solid #e5e7eb;overflow:hidden}.field{display:grid;grid-gap:4px;gap:4px}.room-editor [role=alert]{color:var(--error)}.room-editor [aria-pressed=true]{font-weight:600}.fixture-list{list-style:none;padding:0;display:grid;grid-gap:8px;gap:8px}.fixture-list li{display:flex;flex-wrap:wrap;gap:12px;align-items:end}.selection-list{list-style:none;padding:0;display:grid;grid-gap:6px;gap:6px}.selection-list li{display:grid;grid-template-columns:minmax(8rem,1fr) minmax(8rem,1fr) auto 2rem auto 8rem;grid-gap:8px;gap:8px;align-items:center}.selection-list output{text-align:center}.selection-list .has-problem,.selection-problems{color:var(--error)}.muted{color:var(--muted)}.violations [role=alert]{color:var(--error)}.item-list{list-style:none;padding:0;display:grid;grid-gap:6px;gap:6px}.item-list li{display:grid;grid-template-columns:minmax(12rem,2fr) minmax(8rem,1fr) 6rem;grid-gap:8px;gap:8px;align-items:center}.item-list .has-problem{color:var(--error)}.project-list{list-style:none;padding:0;display:grid;grid-gap:8px;gap:8px}.project-list li{display:flex;gap:12px;align-items:baseline}.login-form{display:grid;grid-gap:12px;gap:12px;max-width:360px}