:root{--bg: #eef2ff;--card: #ffffff;--text: #0f172a;--muted: #475569;--primary: #0f766e;--danger: #b91c1c;--border: #dbe4ff}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Tahoma,sans-serif;color:var(--text);background:radial-gradient(circle at top right,#c7d2fe,var(--bg))}button,input,textarea{font:inherit}.app-shell,.auth-shell{max-width:1100px;margin:0 auto;padding:20px}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;gap:12px}.grid-two{display:grid;grid-template-columns:1fr 1fr;gap:12px}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px;box-shadow:0 8px 18px #0f172a14}.banner{background:#fff7ed;border:1px solid #fed7aa;color:#7c2d12;padding:10px;border-radius:10px;margin-bottom:12px}.form-grid{display:grid;gap:8px}input,textarea{width:100%;border:1px solid var(--border);border-radius:10px;padding:10px}textarea{min-height:96px}button{border:none;border-radius:10px;background:var(--primary);color:#fff;padding:10px 12px;cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}.ghost{background:#e2e8f0;color:#0f172a}.danger{background:var(--danger)}.row{display:flex;gap:8px}.note-list{list-style:none;padding:0;margin:0;display:grid;gap:8px}.note-list li{border:1px solid var(--border);border-radius:10px;padding:10px;display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.error{color:var(--danger);margin-top:8px}.admin-list{display:grid;gap:8px}.admin-row{border:1px solid var(--border);border-radius:10px;padding:8px;display:grid;gap:8px}pre{background:#0f172a;color:#f8fafc;padding:10px;border-radius:8px;overflow:auto}@media (max-width: 840px){.grid-two{grid-template-columns:1fr}}