:root {
  --bg: #0f1115;
  --panel: #171a21;
  --border: #262b36;
  --text: #e6e8ee;
  --text-dim: #8b93a7;
  --accent: #4f8cff;
  --danger: #ff5c5c;
  --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system, Segoe UI, Roboto, sans-serif; }
.wb-shell { max-width: 1100px; margin: 0 auto; padding: 32px 20px; }
.wb-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.wb-header h1 { font-size: 20px; margin: 0; }
.wb-panel { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin-bottom: 20px; }
.wb-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.wb-card { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.wb-card img { width: 100%; height: 120px; object-fit: cover; background: #000; display: block; }
.wb-card-body { padding: 10px 12px; }
.wb-card-body .hostname { font-family: var(--mono); font-size: 12px; color: var(--text-dim); }
.wb-btn { background: var(--accent); color: #fff; border: none; border-radius: 6px; padding: 8px 14px; font-size: 14px; cursor: pointer; }
.wb-btn:hover { filter: brightness(1.1); }
.wb-btn.secondary { background: transparent; border: 1px solid var(--border); color: var(--text); }
.wb-input { width: 100%; background: #0c0e12; border: 1px solid var(--border); color: var(--text); border-radius: 6px; padding: 10px 12px; font-size: 14px; }
.wb-error { color: var(--danger); font-size: 13px; margin-top: 8px; }
.wb-login-form { max-width: 360px; margin: 80px auto; }
.wb-login-form label { display: block; margin: 12px 0 4px; font-size: 13px; color: var(--text-dim); }