:root{color-scheme:light;--bg: #f4f5fb;--surface: #ffffff;--ink: #1d2433;--muted: #6b7280;--accent: #4f46e5;--accent-ink: #ffffff;--danger: #b91c1c;--ok: #15803d;--border: #e2e5f0;font-family:system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}button{font:inherit;border:none;border-radius:8px;padding:8px 14px;background:var(--accent);color:var(--accent-ink);cursor:pointer}button:disabled{opacity:.5;cursor:default}button.ghost{background:transparent;color:var(--muted)}button.danger{background:var(--danger)}input,select,textarea{font:inherit;padding:8px 10px;border:1px solid var(--border);border-radius:8px;width:100%}label{display:flex;flex-direction:column;gap:4px;font-size:14px;color:var(--muted)}.shell{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:24px;padding:12px 24px;background:var(--surface);border-bottom:1px solid var(--border)}.brand{font-weight:700}.tabs{display:flex;gap:4px;flex:1}.tab{background:transparent;color:var(--muted);padding:8px 12px}.tab.active{background:var(--accent);color:var(--accent-ink)}.session{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:14px}.content{padding:24px;max-width:960px;width:100%;margin:0 auto;display:flex;flex-direction:column;gap:24px}.panel{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px 24px;display:flex;flex-direction:column;gap:12px}.panel h2{margin:0;font-size:18px}.panel h3{margin:8px 0 0;font-size:15px}.center-shell{min-height:100vh;display:grid;place-items:center}.login{width:320px}.login h1{margin:0 0 8px;font-size:20px}.muted{color:var(--muted)}.error{color:var(--danger);margin:0}.ok{color:var(--ok);margin:0}.subcard{border:1px solid var(--border);border-radius:10px;padding:12px 14px;display:flex;flex-direction:column;gap:10px}.subcard h3,.subcard h4{margin:0;font-size:14px}.subcard>button{align-self:flex-start}label.checkbox{flex-direction:row;align-items:center;gap:8px}label.checkbox input{width:auto}.readonly-body{font:inherit;white-space:pre-wrap;margin:0;padding:8px 10px;max-height:180px;overflow:auto;background:var(--bg);border:1px dashed var(--border);border-radius:8px}.button-row{display:flex;gap:8px;flex-wrap:wrap}.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.stat-card{border:1px solid var(--border);border-radius:10px;padding:12px;display:flex;flex-direction:column;gap:4px}.stat-value{font-size:24px;font-weight:700}.stat-label{font-size:13px;color:var(--muted)}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600}.row-actions{display:flex;gap:8px;align-items:center}.badge{display:inline-block;font-size:12px;border-radius:999px;padding:2px 10px;background:var(--border);color:var(--muted)}.badge.on{background:#dcfce7;color:var(--ok)}.badge.off{background:#fee2e2;color:var(--danger)}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;align-items:end}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#1d243380;display:grid;place-items:center}.modal{width:380px}.code-chip{font-family:ui-monospace,monospace;background:var(--bg);border:1px dashed var(--border);border-radius:8px;padding:6px 10px}