* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0f1117;
  --bg-card: #1a1d27;
  --bg-input: #252830;
  --border: #2e3140;
  --text: #e4e5e7;
  --text-muted: #8b8d97;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* Login */
.login-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}
.login-container h1 {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 0.25rem;
}
.login-container .subtitle {
  color: var(--text-muted);
  margin-bottom: 2rem;
}
.login-container form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  max-width: 320px;
}
.login-container input {
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 1rem;
}
.login-container button {
  padding: 0.75rem 1rem;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  color: white;
  font-size: 1rem;
  cursor: pointer;
  font-weight: 600;
}
.login-container button:hover { background: var(--accent-hover); }

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}
.header-left {
  display: flex;
  align-items: center;
  gap: 2rem;
}
header h1 { font-size: 1.25rem; }
header h1 a { color: var(--accent); text-decoration: none; }
header nav { display: flex; gap: 1rem; }
header nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
}
header nav a:hover, header nav a.active {
  color: var(--text);
  background: var(--bg-input);
}
.btn-link {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
}
.btn-link:hover { color: var(--text); }

/* Main content */
main {
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
}
.card h2 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

/* Buttons */
.btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { opacity: 0.9; }
.btn-secondary {
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--text-muted); }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.8rem; }

/* Table */
.table-container { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}
th {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}
td { font-size: 0.9rem; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* Status badges */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-success { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger); }

/* Forms */
.form-group {
  margin-bottom: 1rem;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}
.form-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* Page header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}
.page-header h2 {
  font-size: 1.5rem;
  border: none;
  margin: 0;
  padding: 0;
}

/* Detail grid */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.detail-item {
  padding: 1rem;
  background: var(--bg-input);
  border-radius: var(--radius);
}
.detail-item .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}
.detail-item .value {
  font-size: 1rem;
  word-break: break-all;
}

/* Error / empty states */
.error { color: var(--danger); font-size: 0.85rem; }
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

/* Loading */
.loading {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
}

/* Activity timeline */
.timeline { list-style: none; }
.timeline li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.timeline .time {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
  min-width: 140px;
}
.timeline .action { font-size: 0.9rem; }
.timeline .hostname {
  font-weight: 600;
  color: var(--accent);
}

/* Responsive */
@media (max-width: 768px) {
  main { padding: 1rem; }
  .page-header { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .detail-grid { grid-template-columns: 1fr; }
}