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

:root {
  --color-background: #0F172A;
  --color-surface: #1E293B;
  --color-surface-hover: #272F42;
  --color-border: #334155;
  --color-border-subtle: #475569;
  --color-text-primary: #F8FAFC;
  --color-text-secondary: #94A3B8;
  --color-accent: #22C55E;
  --color-accent-dim: #166534;
  --color-destructive: #EF4444;
  --color-destructive-dim: #7F1D1D;
  --color-warning: #F59E0B;
  --color-info: #3B82F6;

  --radius-sm: 6px;
  --radius-md: 8px;
  --transition: 150ms ease-out;
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text-primary);
  background: var(--color-background);
  min-height: 100vh;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 24px 16px;
}

@media (min-width: 768px) {
  .container { padding: 32px; }
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.header h1 {
  font-size: 20px;
  font-weight: 700;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

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

.status-dot.connected { background: var(--color-accent); animation: pulse 2s infinite; }
.status-dot.disconnected { background: var(--color-destructive); animation: none; }
.status-dot.connecting { background: var(--color-warning); animation: pulse 1s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@media (prefers-reduced-motion: reduce) {
  .status-dot { animation: none !important; }
}

/* Card / Panel */
.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
}

.panel-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Table */
.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

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

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
}

th {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tr {
  cursor: pointer;
  transition: background var(--transition);
}

tbody tr:hover {
  background: var(--color-surface-hover);
}

.mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid var(--color-border-subtle);
  background: transparent;
  color: var(--color-text-primary);
}

.btn:hover { background: var(--color-surface-hover); border-color: var(--color-accent); }
.btn:active { transform: scale(0.97); }
.btn:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

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

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

.btn-sm { padding: 4px 10px; font-size: 12px; }

.btn-success {
  background: var(--color-accent-dim);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Link */
.link {
  color: var(--color-info);
  text-decoration: none;
  font-size: 13px;
  cursor: pointer;
}

.link:hover { text-decoration: underline; }

/* Back nav */
.back-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--transition);
}

.back-nav:hover { color: var(--color-text-primary); }

/* Channel header */
.channel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.channel-header h2 {
  font-size: 18px;
  font-weight: 600;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
}

.badge-green {
  background: var(--color-accent-dim);
  color: var(--color-accent);
}

.meta {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

/* Device chips */
.device-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.device-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.device-chip .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* Permission cards */
.perm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 480px) {
  .perm-grid { grid-template-columns: 1fr; }
}

.perm-card {
  padding: 16px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.perm-card .perm-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  margin-bottom: 8px;
}

.perm-status {
  font-size: 13px;
  margin-bottom: 12px;
}

.perm-status.granted { color: var(--color-accent); }
.perm-status.denied { color: var(--color-destructive); }
.perm-status.unknown { color: var(--color-text-secondary); }
.perm-status.unavailable { color: var(--color-warning); }

.perm-hint {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.perm-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.perm-notice {
  background: var(--color-accent-dim);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--color-accent);
  line-height: 1.4;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 16px;
  color: var(--color-text-secondary);
}

.empty-state p {
  margin-top: 8px;
  font-size: 13px;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 400px;
  width: calc(100% - 32px);
}

.toast {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: toast-in 150ms ease-out;
}

.toast-success {
  background: var(--color-accent-dim);
  color: var(--color-accent);
}

.toast-error {
  background: var(--color-destructive-dim);
  color: var(--color-destructive);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .toast { animation: none !important; }
}

/* Mobile card layout for history */
@media (max-width: 480px) {
  .history-table thead { display: none; }
  .history-table tbody tr {
    display: block;
    padding: 12px;
    margin-bottom: 8px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
  }
  .history-table tbody td {
    display: block;
    border: none;
    padding: 2px 0;
  }
  .history-table tbody td:last-child {
    margin-top: 8px;
    text-align: right;
  }
}

/* Connection count */
.conn-count {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.conn-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 2s infinite;
}

@media (prefers-reduced-motion: reduce) {
  .conn-dot { animation: none !important; }
}

/* Text truncation */
.text-preview {
  max-width: 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (max-width: 480px) {
  .text-preview { max-width: 200px; }
}