/* ==========================================================================
   SMART LAB RESOURCE MANAGEMENT SYSTEM - CORE STYLESHEET
   High-Tech Scientific Laboratory Design System (Responsive, Modern CSS3)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Color Palette - Cyber Lab Slate Theme */
  --bg-main: #0a0f1d;
  --bg-surface: #111a2e;
  --bg-surface-elevated: #18233c;
  --bg-surface-translucent: rgba(17, 26, 46, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-glow: rgba(6, 182, 212, 0.35);

  /* Primary & Accent Tones */
  --primary: #06b6d4;         /* Electric Cyan / Lab Blue */
  --primary-hover: #0891b2;
  --primary-glow: rgba(6, 182, 212, 0.25);
  --accent-emerald: #10b981;  /* Safe / Operational */
  --accent-amber: #f59e0b;    /* Warning / In Progress */
  --accent-rose: #f43f5e;     /* Critical / Danger */
  --accent-violet: #8b5cf6;   /* Analysis / Special */

  /* Text & Typography */
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Elevations & Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);

  --header-height: 70px;
  --sidebar-width: 260px;
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-main: #f4f6fb;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f8fafc;
  --bg-surface-translucent: rgba(255, 255, 255, 0.9);
  --border-subtle: #e2e8f0;
  --border-strong: #cbd5e1;
  --border-glow: rgba(6, 182, 212, 0.3);
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;
  --shadow-md: 0 8px 24px rgba(148, 163, 184, 0.2);
  --shadow-lg: 0 16px 40px rgba(148, 163, 184, 0.25);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   APP CONTAINER & LAYOUT
   ========================================================================== */
.app-wrapper {
  display: flex;
  width: 100vw;
  min-height: 100vh;
}

/* Sidebar Navigation */
.app-sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 50;
  transition: transform var(--transition-normal);
}

.brand-section {
  padding: 1.5rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.brand-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), #3b82f6);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.25rem;
  box-shadow: 0 0 16px var(--primary-glow);
}

.brand-titles h1 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.brand-titles span {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary);
}

/* Nav Menu */
.sidebar-nav {
  flex: 1;
  padding: 1.25rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  overflow-y: auto;
}

.nav-category-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  padding: 0.6rem 0.75rem 0.25rem;
}

.nav-link-btn {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  background: transparent;
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: all var(--transition-fast);
}

.nav-link-btn i {
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
}

.nav-link-btn:hover {
  background-color: var(--bg-surface-elevated);
  color: var(--text-main);
}

.nav-link-btn.active {
  background: linear-gradient(90deg, rgba(6, 182, 212, 0.15), rgba(59, 130, 246, 0.08));
  border-color: var(--border-glow);
  color: var(--primary);
  font-weight: 600;
}

.nav-link-btn .nav-badge {
  margin-left: auto;
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 20px;
  background-color: var(--bg-surface-elevated);
  color: var(--text-muted);
  font-weight: 600;
}

.nav-link-btn.active .nav-badge {
  background-color: var(--primary);
  color: #0b1120;
}

/* Sidebar Footer / User Persona */
.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid var(--border-subtle);
  background-color: rgba(0, 0, 0, 0.1);
}

.persona-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem;
  border-radius: var(--radius-md);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
}

.persona-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.persona-info {
  flex: 1;
  min-width: 0;
}

.persona-name {
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.persona-role-badge {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--primary);
}

/* ==========================================================================
   MAIN CONTENT AREA
   ========================================================================== */
.main-viewport {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Top App Header */
.top-header {
  height: var(--header-height);
  background-color: var(--bg-surface-translucent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.menu-toggle-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.header-title-group h2 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.header-title-group p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Status Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-mono);
}

.status-online {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-fallback {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: currentColor;
  display: inline-block;
  box-shadow: 0 0 8px currentColor;
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

/* Persona Switcher Dropdown */
.role-switcher-wrap select {
  background-color: var(--bg-surface-elevated);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.45rem 1rem;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  outline: none;
}

.role-switcher-wrap select:focus {
  border-color: var(--primary);
}

.header-btn-icon {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.header-btn-icon:hover {
  color: var(--text-main);
  border-color: var(--border-strong);
}

/* Content Container */
.page-container {
  padding: 2rem;
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

/* View Sections */
.view-section {
  display: none;
  animation: fadeIn 0.25s ease-out;
}

.view-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   METRIC CARDS & TELEMETRY STRIP
   ========================================================================== */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.metric-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

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

.metric-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.metric-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.metric-icon-box {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.icon-cyan { background: rgba(6, 182, 212, 0.15); color: var(--primary); }
.icon-green { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); }
.icon-amber { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }
.icon-rose { background: rgba(244, 63, 94, 0.15); color: var(--accent-rose); }

.metric-value {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
  line-height: 1.1;
  font-feature-settings: "tnum";
}

.metric-footer {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.metric-footer span.highlight {
  color: var(--accent-emerald);
  font-weight: 600;
}

/* ==========================================================================
   LIVE IOT ROOMS TELEMETRY SECTION
   ========================================================================== */
.section-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-heading-group h3 {
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-heading-group p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.room-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.room-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.room-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.room-name-box h4 {
  font-size: 0.95rem;
  font-weight: 700;
}

.room-name-box span {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.occupancy-pill {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 20px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  font-weight: 600;
}

.room-sensor-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background-color: var(--bg-surface-elevated);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.5rem;
  text-align: center;
  gap: 0.5rem;
}

.sensor-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.sensor-lbl {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-dim);
}

.sensor-val {
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--primary);
}

.room-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-subtle);
}

.room-auth-tag {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Charts Grid */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.chart-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.chart-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.chart-card-header h4 {
  font-size: 1rem;
  font-weight: 700;
}

.chart-canvas-wrap {
  position: relative;
  flex: 1;
  min-height: 240px;
}

/* ==========================================================================
   BUTTONS & CONTROLS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #2563eb);
  color: #fff;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-hover), #1d4ed8);
  box-shadow: 0 6px 16px var(--primary-glow);
}

.btn-secondary {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-subtle);
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: var(--border-subtle);
  border-color: var(--border-strong);
}

.btn-success {
  background-color: var(--accent-emerald);
  color: #062b1b;
}

.btn-success:hover {
  background-color: #059669;
  color: #fff;
}

.btn-danger {
  background-color: rgba(244, 63, 94, 0.15);
  border-color: rgba(244, 63, 94, 0.3);
  color: var(--accent-rose);
}

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

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
}

.btn-icon-only {
  padding: 0.5rem;
  width: 34px;
  height: 34px;
}

/* Filter Controls Bar */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 0.75rem 1.25rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.search-input-wrap {
  position: relative;
  min-width: 260px;
  flex: 1;
}

.search-input-wrap i {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
}

.search-input-wrap input {
  width: 100%;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.55rem 0.85rem 0.55rem 2.4rem;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
}

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

.filter-pills {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  overflow-x: auto;
}

.filter-pill-btn {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.4rem 0.85rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-pill-btn:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-main);
}

.filter-pill-btn.active {
  background: var(--primary);
  color: #0b1120;
  border-color: var(--primary);
  font-weight: 700;
}

/* ==========================================================================
   EQUIPMENT CATALOG CARDS
   ========================================================================== */
.equipment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 1.5rem;
}

.equipment-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
  position: relative;
}

.equipment-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.equipment-card-header {
  padding: 1.25rem 1.25rem 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
}

.equipment-title-box h4 {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.2rem;
}

.equipment-title-box .model-code {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* Equipment Status Badges */
.eq-status-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.eq-status-Available {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.eq-status-InUse {
  background: rgba(6, 182, 212, 0.15);
  color: var(--primary);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.eq-status-UnderMaintenance {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.equipment-card-body {
  padding: 0 1.25rem 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.spec-snippet {
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--bg-surface-elevated);
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary);
  line-height: 1.4;
}

.eq-details-table {
  width: 100%;
  font-size: 0.75rem;
}

.eq-details-table td {
  padding: 0.25rem 0;
}

.eq-details-table td.label {
  color: var(--text-dim);
  width: 45%;
}

.eq-details-table td.val {
  color: var(--text-main);
  font-weight: 600;
  text-align: right;
}

/* Active In-Session Banner inside Card */
.in-session-banner {
  background: rgba(6, 182, 212, 0.12);
  border: 1px dashed var(--primary);
  padding: 0.6rem;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary);
}

.equipment-card-footer {
  padding: 0.85rem 1.25rem;
  background-color: var(--bg-surface-elevated);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.rate-tag {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.rate-tag span {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-dim);
}

/* ==========================================================================
   BOOKINGS & RESERVATIONS TABLE
   ========================================================================== */
.data-table-container {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin-bottom: 2rem;
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.custom-table th {
  background-color: var(--bg-surface-elevated);
  padding: 0.85rem 1.25rem;
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
}

.custom-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-main);
  vertical-align: middle;
}

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

/* ==========================================================================
   CHEMICAL INVENTORY & NFPA 704 HAZARD DIAMOND
   ========================================================================== */
.inventory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.chemical-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.chemical-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.chemical-title h4 {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.3;
}

.chemical-title .cas-tag {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
}

/* Standard NFPA 704 Hazard Diamond */
.nfpa-diamond {
  width: 44px;
  height: 44px;
  position: relative;
  transform: rotate(45deg);
  background-color: #333;
  border-radius: 4px;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.nfpa-box {
  width: 50%;
  height: 50%;
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.7rem;
  color: #000;
}

.nfpa-box span {
  transform: rotate(-45deg);
}

.nfpa-health { top: 0; left: 0; background: #3b82f6; color: #fff; }        /* Blue - Health */
.nfpa-flam { top: 0; right: 0; background: #ef4444; color: #fff; }         /* Red - Flammability */
.nfpa-react { bottom: 0; left: 0; background: #eab308; color: #000; }      /* Yellow - Reactivity/Instability */
.nfpa-spec { bottom: 0; right: 0; background: #ffffff; color: #000; font-size: 0.6rem; } /* White - Special */

/* Stock Meter */
.stock-meter-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.stock-meter-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
}

.stock-progress-bar {
  height: 8px;
  background-color: var(--bg-surface-elevated);
  border-radius: 4px;
  overflow: hidden;
}

.stock-progress-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.3s ease;
}

.fill-adequate { background-color: var(--accent-emerald); }
.fill-low { background-color: var(--accent-amber); }
.fill-critical { background-color: var(--accent-rose); }

/* ==========================================================================
   MAINTENANCE TICKETING & SMART ACCESS CONSOLE
   ========================================================================== */
.access-console-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.console-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.rfid-scanner-box {
  background: var(--bg-surface-elevated);
  border: 2px dashed var(--primary);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-top: 1rem;
}

.rfid-scanner-box:hover {
  background: rgba(6, 182, 212, 0.08);
  border-color: var(--primary-hover);
}

.rfid-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 1rem;
  animation: pulseIcon 2s infinite ease-in-out;
}

@keyframes pulseIcon {
  0%, 100% { transform: scale(1); opacity: 0.9; }
  50% { transform: scale(1.1); opacity: 1; text-shadow: 0 0 20px var(--primary-glow); }
}

/* ==========================================================================
   MODALS & DIALOGS
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(5, 8, 16, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  padding: 1.5rem;
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 580px;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(0.97);
  transition: all var(--transition-fast);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-backdrop.active .modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 1.25rem;
  cursor: pointer;
}

.modal-close-btn:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  background-color: rgba(0, 0, 0, 0.1);
}

/* Form Groups */
.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.6rem 0.85rem;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* QR Pass Container */
.qr-pass-card {
  background: #ffffff;
  color: #0f172a;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.qr-code-box {
  display: flex;
  justify-content: center;
  margin: 1.25rem 0;
}

.qr-code-box canvas, .qr-code-box img {
  border: 8px solid #ffffff;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 200;
}

.toast {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  box-shadow: var(--shadow-lg);
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
  animation: slideInToast 0.3s ease-out;
  min-width: 280px;
}

@keyframes slideInToast {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ==========================================================================
   RESPONSIVENESS & BREAKPOINTS
   ========================================================================== */
@media (max-width: 1024px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }
  .access-console-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .app-sidebar {
    transform: translateX(-100%);
  }
  .app-sidebar.mobile-open {
    transform: translateX(0);
  }
  .main-viewport {
    margin-left: 0;
  }
  .menu-toggle-btn {
    display: block;
  }
  .top-header {
    padding: 0 1rem;
  }
  .page-container {
    padding: 1rem;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   PRINT STYLES FOR LAB REPORTS
   ========================================================================== */
@media print {
  body {
    background: #fff !important;
    color: #000 !important;
  }
  .app-sidebar, .top-header, .filter-bar, .btn, .modal-backdrop {
    display: none !important;
  }
  .main-viewport {
    margin-left: 0 !important;
  }
  .page-container {
    padding: 0 !important;
    max-width: 100% !important;
  }
  .view-section {
    display: block !important;
  }
  .metric-card, .equipment-card, .data-table-container {
    border: 1px solid #ddd !important;
    box-shadow: none !important;
    break-inside: avoid;
  }
}