:root{color-scheme:light;--bg: #f5f6f8;--card: #ffffff;--border: #dfe3e8;--text: #1f2933;--muted: #6b7280;--primary: #2563eb;--danger: #dc2626}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}.topbar{display:flex;justify-content:space-between;align-items:center;padding:12px 24px;background:var(--card);border-bottom:1px solid var(--border)}.brand{font-weight:700;font-size:18px;color:var(--primary);text-decoration:none}.topbar-right{display:flex;gap:12px;align-items:center}.page{padding:24px;max-width:1200px;margin:0 auto}.card{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:20px}.login-page{display:flex;justify-content:center;padding-top:80px}.login-card{width:320px;display:flex;flex-direction:column;gap:12px}.login-card label{display:flex;flex-direction:column;gap:4px;font-size:14px}input,select,button{font:inherit;padding:8px 10px;border-radius:6px;border:1px solid var(--border)}button{background:var(--primary);color:#fff;border:none;cursor:pointer}button.danger{background:var(--danger)}button:disabled{opacity:.6;cursor:default}.inline-form{display:flex;gap:10px;margin-bottom:20px;align-items:center}.table{width:100%;border-collapse:collapse;background:var(--card)}.table th,.table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}.table .actions{display:flex;gap:8px}.error{color:var(--danger)}.muted{color:var(--muted)}.modal{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center}.code-block{background:#0f172a;color:#e2e8f0;padding:12px;border-radius:6px;overflow-x:auto;max-width:500px}.heatmap-layout{display:flex;gap:24px;margin-top:16px}.page-list{width:260px;flex-shrink:0}.page-list ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px}.page-list button{width:100%;text-align:left;background:var(--card);color:var(--text);border:1px solid var(--border)}.page-list button.active{border-color:var(--primary);background:#eff6ff}.heatmap-main{flex:1;min-width:0}.filters{display:flex;gap:16px;margin-bottom:16px;flex-wrap:wrap}.filters label{display:flex;flex-direction:column;gap:4px;font-size:13px}.heatmap-wrapper{overflow:auto;border:1px solid var(--border);border-radius:8px;max-height:75vh}.heatmap-container{position:relative}.heatmap-container img{display:block}.no-screenshot{padding:40px;text-align:center;color:var(--muted)}.upload-fallback{display:block;margin-top:12px;font-size:13px;color:var(--muted)}.switch{display:flex;align-items:center;gap:6px}