:root {
  --bg-dark: #090a0f;
  --bg-card: rgba(18, 20, 28, 0.6);
  --bg-card-hover: rgba(24, 27, 38, 0.8);
  --text-main: #f1f5f9;
  --text-muted: #8b9bb4;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --border: rgba(45, 55, 72, 0.5);
  --border-highlight: rgba(99, 102, 241, 0.3);
  
  --status-ok: #10b981;
  --status-busy: #fbbf24;
  --status-error: #ef4444;
  --status-offline: #475569;
  
  --bg-input: rgba(15, 17, 26, 0.8);
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
  background-color: var(--bg-dark);
  background-image: radial-gradient(circle at 15% 50%, rgba(99, 102, 241, 0.04), transparent 25%),
                    radial-gradient(circle at 85% 30%, rgba(16, 185, 129, 0.03), transparent 25%);
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover {
  color: var(--text-main);
}

header {
  background-color: rgba(9, 10, 15, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 50;
}

header h1 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  background: linear-gradient(to right, #e2e8f0, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.btn {
  background-color: var(--primary);
  color: #fff;
  border: 1px solid transparent;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.btn:hover {
  background-color: var(--primary-hover);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.3);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  border: 1px solid var(--border);
  color: var(--text-main);
  box-shadow: none;
}
.btn-secondary:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--border-highlight);
}

.btn-danger {
  background-color: rgba(239, 68, 68, 0.1);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.2);
  box-shadow: none;
}
.btn-danger:hover {
  background-color: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.4);
}

.container {
  max-width: 1300px;
  margin: 2rem auto;
  padding: 0 2rem;
}

/* Glassmorphic Cards */
.card {
  background-color: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.card:hover {
  border-color: rgba(45, 55, 72, 0.8);
  background-color: var(--bg-card-hover);
}

/* Specific Card Variants */
.card-highlight {
  border-top: 3px solid var(--primary);
}
.card-status-ok { border-top: 3px solid var(--status-ok); }
.card-status-busy { border-top: 3px solid var(--status-busy); }
.card-status-error { border-top: 3px solid var(--status-error); }

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.grid-2col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (max-width: 900px) {
  .grid-2col { grid-template-columns: 1fr; }
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #fff;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* Status dots */
.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  box-shadow: 0 0 8px currentColor;
}
.dot.ok { color: var(--status-ok); background-color: var(--status-ok); box-shadow: 0 0 12px rgba(16, 185, 129, 0.4); }
.dot.busy { color: var(--status-busy); background-color: var(--status-busy); box-shadow: 0 0 12px rgba(251, 191, 36, 0.4); }
.dot.error { color: var(--status-error); background-color: var(--status-error); box-shadow: 0 0 12px rgba(239, 68, 68, 0.4); }
.dot.offline { color: var(--status-offline); background-color: var(--status-offline); box-shadow: none; }

/* Pulse animation for active states */
@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.1); opacity: 0.7; }
  100% { transform: scale(1); opacity: 1; }
}
.dot.ok.animate { animation: pulse 2s infinite ease-in-out; }

/* Tables/Lists */
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.table th {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
}

.table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(45, 55, 72, 0.3);
  vertical-align: top;
}

.table tr:last-child td {
  border-bottom: none;
}

.badge {
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  backdrop-filter: blur(4px);
}
.badge.ok, .badge.success { background-color: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.2); }
.badge.busy { background-color: rgba(251, 191, 36, 0.15); color: #fbbf24; border: 1px solid rgba(251, 191, 36, 0.2); }
.badge.error { background-color: rgba(239, 68, 68, 0.15); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.2); }
.badge.offline { background-color: rgba(71, 85, 105, 0.15); color: #94a3b8; border: 1px solid rgba(71, 85, 105, 0.2); }

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}
.form-group input, .form-group select {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-main);
  border-radius: 8px;
  font-family: inherit;
  transition: all 0.2s ease;
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.15);
  background-color: rgba(15, 17, 26, 0.95);
}

.alert {
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
}
.alert-error {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #fca5a5;
}
.alert-success {
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: #6ee7b7;
}

/* Terminal / Code area */
.terminal-block {
  background-color: #050508;
  border: 1px solid #1f2937;
  border-radius: 8px;
  padding: 1rem;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.8rem;
  color: #a1a1aa;
  overflow-x: auto;
}

.terminal-line {
  margin-bottom: 0.25rem;
  white-space: pre-wrap;
  word-break: break-all;
}

.terminal-line.error { color: #fca5a5; }
.terminal-line.success { color: #6ee7b7; }
.terminal-line.busy { color: #fde047; }

/* Login specific */
.login-container {
  max-width: 420px;
  margin: 12vh auto;
}
.login-logo {
  text-align: center;
  margin-bottom: 2.5rem;
}
.login-logo h1 {
  font-size: 2rem;
  background: linear-gradient(to right, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Flex utilities */
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.justify-between { justify-content: space-between; }
.items-center { align-items: center; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }