/* ==========================================================================
   SMARTSHELF Admin Dashboard Stylesheet - Phase 5 Redesign
   Palette: Plum (#321126), Burgundy (#641B3A), Crimson (#B72D52),
            Soft Crimson (#D34C67), Cream (#F7F0E8), Ivory (#FFFDF9).
   ========================================================================== */

@import "/assets/css/tokens.css";
@import "/assets/css/base.css";
@import "/assets/css/components.css";
@import "/assets/css/motion.css";

:root {
  --bg-main: var(--bg-canvas);
  --bg-card: var(--bg-surface);
  --bg-card-hover: var(--bg-surface-elevated);
  --bg-input: var(--bg-surface);
  --border-color: var(--border-subtle);
  --border-focus: var(--primary);
  --text-main: var(--text-primary);
  --text-muted: var(--text-muted);
  --accent-primary: var(--primary);
  --accent-hover: var(--primary-hover);
  --accent-glow: var(--accent-subtle);
  --success: var(--color-success);
  --danger: var(--color-danger);
  --warning: var(--color-warning);
  --font-family: var(--font-sans);
}

/* App Container */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
}

/* PIN Login Screen */
.login-screen {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, var(--bg-surface-elevated), var(--bg-canvas));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  padding: var(--space-4);
}

.login-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-xl);
  text-align: center;
}

.pin-input {
  font-size: var(--font-2xl) !important;
  letter-spacing: 0.35em !important;
  text-align: center !important;
  font-family: var(--font-mono) !important;
  height: 56px !important;
  background-color: var(--bg-surface-elevated) !important;
}

/* Top Navbar */
.navbar {
  background-color: var(--bg-surface);
  border-block-end: 1px solid var(--border-subtle);
  padding: var(--space-3) var(--space-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: var(--font-weight-bold);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.status-badge {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background-color: var(--color-success-bg);
  color: var(--color-success);
  padding: 4px var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--font-xs);
  border: 1px solid var(--color-success-border);
  font-weight: var(--font-weight-medium);
}

/* Tabs Bar */
.tabs-bar {
  background-color: var(--bg-surface);
  border-block-end: 1px solid var(--border-subtle);
  padding-inline: var(--space-4);
  display: flex;
  gap: var(--space-1);
  overflow-x: auto;
  scrollbar-width: thin;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  border-block-end: 3px solid transparent;
  transition: all var(--duration-fast) var(--ease-standard);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--primary);
  font-weight: var(--font-weight-bold);
  border-block-end-color: var(--primary);
  background-color: var(--accent-subtle);
}

/* Main Content Area */
.main-content {
  flex: 1;
  padding: var(--space-4);
  max-width: 1400px;
  width: 100%;
  margin-inline: auto;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: pageFadeIn var(--duration-normal) var(--ease-standard);
}

/* Cards & Surfaces */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
  margin-block-end: var(--space-4);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-block-end: var(--space-3);
  padding-block-end: var(--space-2);
  border-block-end: 1px solid var(--border-subtle);
}

.card-title {
  font-size: var(--font-base);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Metrics Grid */
.overview-metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-4);
  margin-block-end: var(--space-4);
}

.metric-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-fast) var(--ease-standard);
}

.metric-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-default);
}

.metric-icon {
  font-size: 2rem;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--bg-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.metric-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.metric-label {
  font-size: var(--font-xs);
  color: var(--text-muted);
}

.metric-value {
  font-size: var(--font-xl);
  font-weight: var(--font-weight-black);
  color: var(--text-primary);
}

/* Occupied Card */
.occupied-card {
  background-color: var(--color-warning-bg);
  border: 2px solid var(--color-warning-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
  margin-block: var(--space-4);
}

.occupied-icon {
  font-size: 3rem;
  margin-block-end: var(--space-2);
}

.occupied-desc {
  max-width: 480px;
  margin: var(--space-2) auto;
  color: var(--text-secondary);
  font-size: var(--font-sm);
}

.occupied-meta {
  font-size: var(--font-sm);
  color: var(--text-primary);
  margin-block-start: var(--space-2);
}

/* QR Code Display Container */
.qr-display-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background-color: #FFFFFF;
  border-radius: var(--radius-lg);
  width: fit-content;
  margin: var(--space-4) auto;
  box-shadow: var(--shadow-md);
}

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: start;
}

.data-table th {
  background-color: var(--bg-muted);
  color: var(--text-secondary);
  font-size: var(--font-xs);
  font-weight: var(--font-weight-bold);
  padding: var(--space-3) var(--space-4);
  border-block-end: 1px solid var(--border-default);
}

.data-table td {
  padding: var(--space-3) var(--space-4);
  border-block-end: 1px solid var(--border-subtle);
  font-size: var(--font-sm);
}

.data-table tbody tr:hover {
  background-color: var(--bg-surface-subtle);
}

/* Modals */
.modal,
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(50, 17, 38, 0.65);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-standard);
}

.modal.active,
.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 600px;
  overflow: hidden;
}

.modal-header {
  padding: var(--space-4);
  border-block-end: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  margin: 0;
  font-size: var(--font-base);
  font-weight: var(--font-weight-bold);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-1);
}

.modal-body {
  padding: var(--space-4);
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  padding: var(--space-3) var(--space-4);
  border-block-start: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
}

/* Mobile Responsiveness (Bottom Tab Bar) */
@media (max-width: 768px) {
  .tabs-bar {
    position: fixed;
    inset-inline: 0;
    inset-block-end: 0;
    height: 60px;
    z-index: var(--z-sticky);
    box-shadow: 0 -4px 12px rgba(50, 17, 38, 0.1);
    padding: 0;
    justify-content: space-around;
  }

  .tab-btn {
    flex-direction: column;
    padding: var(--space-1);
    font-size: var(--font-xs);
    border-block-end: none;
    border-block-start: 3px solid transparent;
    justify-content: center;
    gap: 2px;
  }

  .tab-btn.active {
    border-block-start-color: var(--primary);
    border-block-end-color: transparent;
  }

  .main-content {
    padding-block-end: 75px;
  }
}

/* ==========================================================================
   Camera Live Feed & Telemetry Monitor (Responsive 16:9 + Overlay)
   ========================================================================== */
.camera-monitor-layout {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) 280px;
  gap: 1.5rem;
  margin-top: 1rem;
  align-items: start;
}

@media (max-width: 900px) {
  .camera-monitor-layout {
    grid-template-columns: 1fr;
  }
}

.camera-stream-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #150811;
  border-radius: var(--radius-lg, 12px);
  overflow: hidden;
  border: 1px solid var(--border-color, rgba(100, 27, 58, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.4);
}

.camera-stream-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  background: #000;
}

.no-stream-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26, 11, 20, 0.88);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: #fff;
  text-align: center;
  padding: 1.5rem;
  z-index: 2;
}

.no-stream-icon {
  font-size: 3rem;
  margin-bottom: 0.25rem;
}

.camera-telemetry-box {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.telemetry-card {
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-color, rgba(100, 27, 58, 0.15));
  border-radius: var(--radius-md, 8px);
  padding: 0.85rem 1.1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.telemetry-label {
  font-size: 0.85rem;
  color: var(--text-muted, #71717a);
}

.telemetry-val {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary, #b72d52);
  font-family: monospace;
}

.telemetry-hint {
  font-size: 0.75rem;
  color: var(--text-muted, #71717a);
  line-height: 1.5;
  margin-top: 0.5rem;
  padding: 0.5rem;
  background: rgba(100, 27, 58, 0.04);
  border-radius: 6px;
}