:root {
  --bg-base: #0d1014;
  --bg-surface: #14181f;
  --bg-elevated: #1b2029;
  --bg-hover: #232a36;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-primary: #10b981;
  --accent-primary-hover: #059669;
  --accent-primary-soft: rgba(16, 185, 129, 0.12);
  --accent-blue: #3b82f6;
  --accent-blue-soft: rgba(59, 130, 246, 0.12);
  --accent-amber: #f59e0b;
  --accent-amber-soft: rgba(245, 158, 11, 0.12);
  --accent-danger: #ef4444;
  --accent-danger-hover: #dc2626;
  --accent-danger-soft: rgba(239, 68, 68, 0.12);
  --discord-brand: #5865f2;
  --discord-brand-hover: #4752c4;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

html, body {
  height: 100%;
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  background-color: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  padding: 20px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 10px 22px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 18px;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--accent-primary-soft);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.brand-text h1 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.brand-text span {
  font-size: 11.5px;
  color: var(--text-muted);
  display: block;
}

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.nav-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
  text-align: left;
}

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

.nav-btn.active {
  background-color: var(--accent-primary-soft);
  color: var(--accent-primary);
  font-weight: 600;
}

.nav-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sidebar-footer {
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bot-status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  padding: 6px 10px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
}

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

.status-dot.offline {
  background: var(--accent-amber);
}

.user-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 10px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
}

.user-card-info {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-hover);
}

.user-meta {
  min-width: 0;
}

.user-meta strong {
  display: block;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-meta small {
  display: block;
  font-size: 11px;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Main Content Area */
.main-area {
  padding: 28px 36px 60px;
  max-width: 1360px;
  width: 100%;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.page-header h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 13.5px;
  margin-top: 3px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 15px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: #051b11;
}

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

.btn-secondary {
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background-color: var(--bg-hover);
}

.btn-danger {
  background-color: var(--accent-danger-soft);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background-color: var(--accent-danger);
  color: #ffffff;
}

.btn-discord {
  background-color: var(--discord-brand);
  color: #ffffff;
  padding: 12px 20px;
  font-size: 14px;
  width: 100%;
}

.btn-discord:hover {
  background-color: var(--discord-brand-hover);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

/* Metric Strip */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.metric-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 18px;
}

.metric-label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
  display: block;
  margin-bottom: 6px;
}

.metric-value {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.metric-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Panels & Cards */
.panel-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  margin-bottom: 20px;
}

.panel-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.panel-card-header h3 {
  font-size: 15.5px;
  font-weight: 600;
}

/* Filter Tabs */
.tabs-bar {
  display: inline-flex;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 3px;
  margin-bottom: 18px;
}

.tab-pill {
  padding: 7px 14px;
  border-radius: 4px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}

.tab-pill.active {
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-weight: 600;
}

/* Tables & Lists */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.data-table th {
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.data-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
}

.badge-scheduled {
  background: var(--accent-blue-soft);
  color: #60a5fa;
}

.badge-active {
  background: var(--accent-primary-soft);
  color: var(--accent-primary);
}

.badge-completed {
  background: rgba(148, 163, 184, 0.14);
  color: #cbd5e1;
}

.badge-cancelled {
  background: var(--accent-danger-soft);
  color: #f87171;
}

.badge-group {
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
  margin-right: 4px;
  margin-bottom: 4px;
}

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.form-group.full {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-control {
  background-color: var(--bg-base);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13.5px;
  outline: none;
  transition: border-color 0.15s ease;
}

.form-control:focus {
  border-color: var(--accent-primary);
}

textarea.form-control {
  min-height: 80px;
  resize: vertical;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 8px;
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px;
  max-height: 210px;
  overflow-y: auto;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  cursor: pointer;
  padding: 5px 8px;
  border-radius: 4px;
}

.check-item:hover {
  background: var(--bg-elevated);
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
}

.modal-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-card);
  padding: 24px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-header h3 {
  font-size: 17px;
  font-weight: 700;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding-top: 16px;
  margin-top: 18px;
  border-top: 1px solid var(--border-subtle);
}

/* Login Screen */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 440px;
  padding: 32px;
  box-shadow: var(--shadow-card);
}

.login-card h1 {
  font-size: 21px;
  font-weight: 700;
  margin-bottom: 8px;
}

.login-card p {
  color: var(--text-secondary);
  font-size: 13.5px;
  margin-bottom: 24px;
}

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--text-muted);
  font-size: 12px;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
}

/* Toast Notification */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 200;
}

.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-left: 4px solid var(--accent-primary);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-card);
  font-size: 13px;
  min-width: 260px;
}

.toast.error {
  border-left-color: var(--accent-danger);
}

/* Split layout for Ping Groups & Recording Detail */
.split-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 20px;
}

.group-item {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-base);
  cursor: pointer;
  margin-bottom: 8px;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.group-item:hover,
.group-item.active {
  border-color: var(--accent-primary);
  background: var(--bg-elevated);
}

.rsvp-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.rsvp-col {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 14px;
}

.rsvp-col h4 {
  font-size: 13px;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}

.participant-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 12.5px;
}

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

.hidden {
  display: none !important;
}

@media (max-width: 960px) {
  .app-shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    height: auto;
    position: relative;
  }
  .split-grid,
  .rsvp-columns,
  .form-grid {
    grid-template-columns: 1fr;
  }
  .main-area {
    padding: 20px;
  }
}