/* VenueSync Core Design System & Dynamic Theme Variables */
:root {
  --bg-primary: #0e0d15;
  --bg-surface: #171523;
  --bg-card: #201d30;
  --border-color: #352f4c;
  --accent-primary: #FAB400;
  --accent-secondary: #6E48AA;
  --accent-success: #2ECC71;
  --accent-danger: #E74C3C;
  --accent-warning: #FAB400;
  --text-primary: #F7F7FA;
  --text-muted: #A5A1B8;
  --text-on-accent: #12100E;
  --header-bg: rgba(23, 21, 35, 0.88);
  --font-heading: 'Outfit', 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 18px;
  --shadow-card: 0 8px 24px rgba(10, 8, 20, 0.4);
  --shadow-float: 0 16px 36px rgba(10, 8, 20, 0.55);
  --header-height: 64px;
  --bottom-nav-height: 68px;
}

[data-theme="light"] {
  --bg-primary: #F6F7FB;
  --bg-surface: #FFFFFF;
  --bg-card: #FFFFFF;
  --border-color: #E2E4EE;
  --accent-primary: #6E48AA;
  --accent-secondary: #FAB400;
  --accent-success: #27AE60;
  --accent-danger: #E74C3C;
  --accent-warning: #F39C12;
  --text-primary: #111116;
  --text-muted: #68677B;
  --text-on-accent: #FFFFFF;
  --header-bg: rgba(255, 255, 255, 0.94);
  --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-float: 0 12px 28px rgba(0, 0, 0, 0.12);
}

body, .app-header, .card, .pwa-bottom-bar, .modal-dialog, .form-control, .form-select, .btn-secondary {
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}
.theme-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
}
[data-theme="light"] .theme-toggle-btn:hover {
  background: rgba(0, 0, 0, 0.05);
}
.theme-toggle-icon {
  font-size: 0.95rem;
  line-height: 1;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.02em;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: opacity 0.2s;
}
a:hover {
  opacity: 0.85;
}

/* App Header */
.app-header {
  height: var(--header-height);
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
}
.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent-primary);
}
.brand-badge {
  font-size: 0.75rem;
  background: var(--bg-card);
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* App Containers */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px;
  flex: 1;
}

/* UI Cards */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
  margin-bottom: 24px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--border-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent-primary);
  color: var(--text-on-accent, #12100E);
  box-shadow: 0 4px 14px rgba(250, 180, 0, 0.28);
}
[data-theme="light"] .btn-primary {
  box-shadow: 0 4px 14px rgba(110, 72, 170, 0.25);
}
.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}
.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
}
[data-theme="light"] .btn-secondary:hover {
  background: rgba(0, 0, 0, 0.05);
}
.btn-success {
  background: var(--accent-success);
  color: #fff;
}
.btn-danger {
  background: var(--accent-danger);
  color: #fff;
}
.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

/* Form Inputs */
.form-group {
  margin-bottom: 16px;
}
.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.form-control, .form-select {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: var(--border-radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}
.form-control:focus, .form-select:focus {
  border-color: var(--accent-primary);
}

/* Grid System */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* KPI Stat Cards */
.kpi-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 20px;
  position: relative;
  overflow: hidden;
}
.kpi-title {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.kpi-value {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
}
.kpi-sub {
  font-size: 0.8rem;
  margin-top: 6px;
  color: var(--accent-primary);
}

/* Status Badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}
.badge-success { background: rgba(46, 204, 113, 0.15); color: #2ECC71; border: 1px solid rgba(46, 204, 113, 0.3); }
.badge-warning { background: rgba(243, 156, 18, 0.15); color: #F39C12; border: 1px solid rgba(243, 156, 18, 0.3); }
.badge-danger  { background: rgba(231, 76, 60, 0.15); color: #E74C3C; border: 1px solid rgba(231, 76, 60, 0.3); }
.badge-info    { background: rgba(74, 144, 226, 0.15); color: #4A90E2; border: 1px solid rgba(74, 144, 226, 0.3); }

/* Navigation Tab Bar */
.tabs-bar {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
  overflow-x: auto;
  white-space: nowrap;
}
.tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  padding: 12px 18px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.tab-btn:hover {
  color: var(--text-primary);
}
.tab-btn.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

/* Sub-Navigation Pill Bar */
.subtabs-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.subtab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-muted);
  padding: 8px 16px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}
.subtab-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
}
.subtab-btn.active {
  background: var(--accent-primary);
  color: var(--text-on-accent, #12100E);
  border-color: var(--accent-primary);
  box-shadow: 0 4px 12px rgba(250, 180, 0, 0.25);
}
[data-theme="light"] .subtab-btn.active {
  box-shadow: 0 4px 12px rgba(110, 72, 170, 0.25);
}

/* Mobile PWA Bottom Bar */
.pwa-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--bottom-nav-height);
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-color);
  z-index: 99;
  justify-content: space-around;
  align-items: center;
}
@media (max-width: 768px) {
  .pwa-bottom-bar {
    display: flex;
  }
  body {
    padding-bottom: var(--bottom-nav-height);
  }
}
.pwa-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  gap: 3px;
}
.pwa-nav-item.active, .pwa-nav-item:hover {
  color: var(--accent-primary);
}
.pwa-nav-icon {
  font-size: 1.25rem;
}