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

:root {
  --bg: #0f1117;
  --bg-card: #1a1d27;
  --bg-input: #252830;
  --border: #2d3040;
  --text: #e4e4e7;
  --text-muted: #8b8d98;
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --radius: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

/* Login Page */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-container {
  background: var(--bg-card);
  padding: 2.5rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  width: 100%;
  max-width: 380px;
}

.login-container h1 { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.25rem; }
.login-subtitle { color: var(--text-muted); font-size: 0.875rem; margin-bottom: 1.5rem; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  padding: 1.25rem 0;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  overflow-y: auto;
}

.sidebar-logo { padding: 0 1.25rem 1.25rem; font-weight: 700; font-size: 1.1rem; border-bottom: 1px solid var(--border); margin-bottom: 0.75rem; }
.sidebar-nav { list-style: none; }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: all 0.15s;
}
.sidebar-nav a:hover, .sidebar-nav a.active { color: var(--text); background: rgba(99,102,241,0.1); }
.sidebar-nav a.active { border-right: 2px solid var(--primary); }

.main-content { margin-left: 220px; flex: 1; padding: 1.5rem 2rem; }

/* Header */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; }
.page-header h2 { font-size: 1.375rem; font-weight: 600; }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.stat-card .stat-value { font-size: 1.75rem; font-weight: 700; }
.stat-card .stat-label { color: var(--text-muted); font-size: 0.8rem; margin-top: 0.25rem; }

/* Tables */
.table-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
thead { background: var(--bg-input); }
th { text-align: left; padding: 0.75rem 1rem; color: var(--text-muted); font-weight: 500; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; }
td { padding: 0.75rem 1rem; border-top: 1px solid var(--border); }
tr:hover td { background: rgba(255,255,255,0.02); }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
}
.badge-success { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-muted { background: rgba(139,141,152,0.15); color: var(--text-muted); }

.dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; }
.dot-green { background: var(--success); }
.dot-grey { background: var(--text-muted); }
.dot-red { background: var(--danger); }

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.375rem; font-weight: 500; }
input[type="text"], input[type="password"], input[type="email"], select, textarea {
  width: 100%;
  padding: 0.625rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { opacity: 0.9; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--text-muted); }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.btn-full { width: 100%; justify-content: center; }

.btn-group { display: flex; gap: 0.5rem; }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
}
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.card-title { font-weight: 600; font-size: 1rem; }

/* Alerts */
.alert { padding: 0.75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: 0.875rem; }
.alert-success { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); color: var(--success); }
.alert-danger, .error-msg { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: var(--danger); padding: 0.75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: 0.875rem; }

/* Tabs */
.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 1.5rem; }
.tab {
  padding: 0.625rem 1rem;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.875rem;
  border-bottom: 2px solid transparent;
  transition: all 0.15s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* Copy button */
.copy-wrap { display: flex; gap: 0.5rem; align-items: center; }
.copy-wrap input { flex: 1; font-family: monospace; font-size: 0.8rem; }
.copy-btn { white-space: nowrap; }

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 100;
  align-items: center;
  justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 480px;
  max-height: 80vh;
  overflow-y: auto;
}
.modal h3 { margin-bottom: 1.25rem; }

/* Misc */
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.8rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mono { font-family: monospace; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 200px; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main-content { margin-left: 0; padding: 1rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}