/* Base styles */
:root {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-card: #0f3460;
  --text-primary: #eaeaea;
  --text-secondary: #a0a0a0;
  --accent: #e94560;
  --success: #4caf50;
  --warning: #ff9800;
  --critical: #f44336;
  --info: #2196f3;
  --border: #2a2a4a;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

/* Header */
header {
  background: var(--bg-secondary);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

nav {
  display: flex;
  gap: 1rem;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: all 0.2s;
}

nav a:hover, nav a.active {
  color: var(--text-primary);
  background: var(--bg-card);
}

.connection-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warning);
}

.status-dot.connected {
  background: var(--success);
}

.status-dot.disconnected {
  background: var(--critical);
}

/* Main content */
main {
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

/* Overview Cards */
.overview-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.card {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 1.5rem;
  border: 1px solid var(--border);
}

.card h3 {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.card-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.card-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.card.warning {
  border-color: var(--warning);
}

.card.critical {
  border-color: var(--critical);
}

/* Alerts Section */
.alerts-section {
  background: rgba(244, 67, 54, 0.1);
  border: 1px solid var(--critical);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.alerts-section h2 {
  color: var(--critical);
  margin-bottom: 1rem;
}

.alert-item {
  background: var(--bg-card);
  padding: 1rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.alert-item.critical {
  border-left: 4px solid var(--critical);
}

.alert-item.warning {
  border-left: 4px solid var(--warning);
}

/* Container Table */
.containers-section, .events-section, .swarm-section {
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  border: 1px solid var(--border);
}

.containers-section h2, .events-section h2, .swarm-section h2 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.875rem;
  text-transform: uppercase;
}

tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.status-badge {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.status-badge.healthy {
  background: var(--success);
}

.status-badge.warning {
  background: var(--warning);
}

.status-badge.critical {
  background: var(--critical);
}

/* Tooltip header styles */
.tooltip-header {
  position: relative;
}

.info-icon {
  cursor: help;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-left: 0.25rem;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.info-icon:hover {
  opacity: 1;
  color: var(--info);
}

/* Native tooltip styling via title attribute - enhanced with CSS */
.info-icon[title] {
  position: relative;
}

/* CPU cores display */
.cpu-cores {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: normal;
}

/* Events */
.events-list {
  max-height: 300px;
  overflow-y: auto;
}

.event-item {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
}

.event-item:last-child {
  border-bottom: none;
}

.event-type {
  font-weight: 500;
  text-transform: uppercase;
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  background: var(--bg-card);
}

.event-type.restart {
  color: var(--warning);
}

.event-type.die, .event-type.kill {
  color: var(--critical);
}

.event-type.start {
  color: var(--success);
}

/* Swarm */
.swarm-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}

.swarm-stat {
  display: flex;
  flex-direction: column;
}

.swarm-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.swarm-value {
  font-size: 1.5rem;
  font-weight: 600;
}

/* Footer */
footer {
  text-align: center;
  padding: 1rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  border-top: 1px solid var(--border);
}

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

/* Settings Page */
.settings-page {
  max-width: 800px;
}

.settings-section {
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  border: 1px solid var(--border);
}

.settings-section h2 {
  margin-bottom: 1.5rem;
}

/* Forms */
.channel-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

input, select {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 1rem;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}

input[type="checkbox"] {
  width: auto;
  margin-right: 0.5rem;
}

.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-danger {
  background: var(--critical);
  color: white;
}

/* Channels List */
.channels-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.channel-item {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.channel-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.channel-type-badge {
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: 500;
}

.channel-type-badge.slack {
  background: #4a154b;
  color: white;
}

.channel-type-badge.telegram {
  background: #0088cc;
  color: white;
}

.channel-type-badge.email {
  background: #ea4335;
  color: white;
}

.channel-actions {
  display: flex;
  gap: 0.5rem;
}

.channel-actions button {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* History List */
.history-list {
  max-height: 400px;
  overflow-y: auto;
}

.history-item {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
}

.history-status {
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
}

.history-status.sent {
  background: rgba(76, 175, 80, 0.2);
  color: var(--success);
}

.history-status.failed {
  background: rgba(244, 67, 54, 0.2);
  color: var(--critical);
}

.history-status.rate_limited {
  background: rgba(255, 152, 0, 0.2);
  color: var(--warning);
}

/* Responsive */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 1rem;
  }

  main {
    padding: 1rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}