:root{--bg:#f3f8f8;--surface:#ffffff;--surface-2:#e9f2f1;--border:#d6e3e2;--text:#132433;--text-muted:#57717a;--teal:#0f9e8e;--blue:#1c66c9;--danger:#ab4038;--radius:10px}@media (prefers-color-scheme:dark){:root{--bg:#0b1b27;--surface:#102838;--surface-2:#163449;--border:#204257;--text:#eaf4f4;--text-muted:#9ab2bc;--teal:#35d6c2;--blue:#6ba6f5;--danger:#e08079}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:IBM Plex Sans,system-ui,sans-serif}a{color:inherit}.app-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{border-right:1px solid var(--border);padding:24px 16px;display:flex;flex-direction:column;gap:24px}.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:1.1rem}.brand .dent{color:var(--teal)}.nav-links{display:flex;flex-direction:column;gap:2px}.nav-links a{padding:9px 10px;border-radius:8px;text-decoration:none;color:var(--text-muted);font-size:.92rem}.nav-links a.active,.nav-links a:hover{background:var(--surface-2);color:var(--text)}main.content{padding:32px 40px;max-width:1100px}h1{font-size:1.6rem;margin:0 0 20px}.toolbar{display:flex;gap:12px;align-items:center;margin-bottom:18px}input,select,textarea{border:1px solid var(--border);padding:8px 10px}button,input,select,textarea{font:inherit;color:var(--text);background:var(--surface);border-radius:7px}button{border:1px solid var(--border);padding:8px 14px;cursor:pointer}button.primary{background:var(--teal);border-color:var(--teal);color:#fff}table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}td,th{text-align:left;padding:10px 14px;border-bottom:1px solid var(--border);font-size:.92rem}tbody tr:hover{background:var(--surface-2);cursor:pointer}.form-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px;max-width:640px}.form-grid label{display:flex;flex-direction:column;gap:4px;font-size:.85rem;color:var(--text-muted)}.form-grid .full{grid-column:1/-1}.week-grid{display:grid;grid-template-columns:70px repeat(7,1fr);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface)}.week-grid .head{padding:8px;font-size:.8rem;color:var(--text-muted);border-bottom:1px solid var(--border);text-align:center}.week-grid .hour{padding:4px 6px;font-size:.72rem;color:var(--text-muted);text-align:right}.week-grid .cell,.week-grid .hour{border-top:1px solid var(--border)}.week-grid .cell{min-height:44px;border-left:1px solid var(--border);padding:2px;position:relative}.appt-chip{border-radius:6px;padding:3px 6px;font-size:.72rem;color:#fff;margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.badge{font-size:.7rem;padding:2px 7px;border-radius:999px;background:var(--surface-2);color:var(--text-muted)}.error{color:var(--danger);font-size:.88rem}