@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-base: hsl(222, 47%, 7%);
  --bg-surface: hsl(222, 38%, 10%);
  --bg-surface-elevated: hsl(222, 35%, 14%);
  --bg-surface-hover: hsl(222, 30%, 18%);
  --border-subtle: hsl(220, 20%, 18%);
  --border-focus: hsl(226, 70%, 55%);

  --text-primary: hsl(210, 40%, 98%);
  --text-secondary: hsl(215, 20%, 75%);
  --text-muted: hsl(215, 16%, 50%);

  --accent-blue: hsl(226, 70%, 55%);
  --accent-cyan: hsl(188, 86%, 53%);
  --accent-emerald: hsl(160, 84%, 39%);
  --accent-amber: hsl(38, 92%, 50%);
  --accent-rose: hsl(343, 82%, 55%);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px 0 rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 32px 0 rgba(0, 0, 0, 0.5);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

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

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

/* Header & Top Bar */
.top-header {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, hsl(226, 70%, 55%), hsl(260, 60%, 55%));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.brand-title-group h1 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.brand-subtitle {
  font-size: 12px;
  color: var(--text-muted);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Server Target Configuration Bar */
.server-selector-container {
  display: flex;
  align-items: center;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 3px 6px;
  gap: 8px;
}

.server-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding-left: 6px;
}

.server-input {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 4px 6px;
  outline: none;
  min-width: 240px;
}

.server-presets {
  display: flex;
  gap: 4px;
}

.preset-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.preset-btn:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
}

.preset-btn.active {
  background: var(--accent-blue);
  color: #fff;
}

/* Connection Health Badge */
.connection-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
}

.badge-dot.offline {
  background: var(--accent-rose);
}

.badge-latency {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

.action-btn {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.action-btn:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-focus);
}

/* Layout Container */
.dashboard-layout {
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  flex: 1;
}

/* Metrics Cards Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.metric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.metric-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.metric-header-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  color: var(--text-muted);
}

.metric-value {
  font-size: 28px;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.metric-subtext {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Main Split View */
.main-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  min-height: 520px;
}

@media (max-width: 1080px) {
  .main-split-grid {
    grid-template-columns: 1fr;
  }
}

.panel-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.panel-header-bar {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface-elevated);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.panel-heading {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-input {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 12px;
  padding: 4px 8px;
  outline: none;
}

.search-input:focus {
  border-color: var(--border-focus);
}

.panel-scroll-body {
  padding: 16px;
  flex: 1;
  overflow-y: auto;
  max-height: 560px;
}

/* Room Items */
.room-card-item {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 12px;
  transition: border-color 0.2s ease;
}

.room-card-item:hover {
  border-color: var(--border-focus);
}

.room-card-item:last-child {
  margin-bottom: 0;
}

.room-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  flex-wrap: wrap;
  gap: 8px;
}

.room-id-tag {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-cyan);
}

.quorum-pill {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: rgba(6, 182, 212, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.25);
}

.peer-chips-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.peer-chip {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.peer-chip.is-leader {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-amber);
  border-color: rgba(245, 158, 11, 0.3);
}

.peer-chip-role {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 1px 4px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.1);
}

/* Terminal Log Console */
.terminal-wrapper {
  background: hsl(224, 71%, 4%);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 14px;
  color: var(--text-secondary);
  height: 520px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.log-entry {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  word-break: break-all;
  padding: 2px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

.log-timestamp {
  color: var(--text-muted);
  font-size: 11px;
  flex-shrink: 0;
}

.log-level-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 3px;
  flex-shrink: 0;
}

.log-level-INFO {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
}

.log-level-WARN {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
}

.log-level-ERROR {
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-rose);
}

.log-message-text {
  color: var(--text-primary);
  flex: 1;
}

.log-attrs-text {
  color: hsl(226, 80%, 75%);
  font-size: 11px;
}

/* Filter Buttons */
.btn-group {
  display: flex;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2px;
  gap: 2px;
}

.filter-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
}

.filter-btn.active {
  background: var(--accent-blue);
  color: #fff;
}

.empty-placeholder {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
  font-size: 13px;
}

/* Footer */
.dashboard-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 16px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg-surface);
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--text-primary);
}