/* ==========================================================================
   CẨM NANG XỬ LÝ TÌNH HUỐNG CHO HƯỚNG DẪN VIÊN DU LỊCH (65 TÌNH HUỐNG)
   Design: Modern Scientific Edu Portal | Responsive | Dark/Light Mode
   ========================================================================== */

:root {
  --primary: #0284c7;
  --primary-hover: #0369a1;
  --primary-light: #e0f2fe;
  --primary-dark: #075985;
  
  --accent: #0d9488;
  --accent-light: #ccfbf1;
  --accent-dark: #0f766e;

  --amber: #d97706;
  --amber-light: #fef3c7;
  --amber-border: #fcd34d;

  --rose: #e11d48;
  --rose-light: #ffe4e6;
  --rose-border: #fda4af;

  --purple: #7c3aed;
  --purple-light: #ede9fe;

  --emerald: #16a34a;
  --emerald-light: #dcfce7;
  --emerald-border: #86efac;

  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-elevated: #f1f5f9;
  --bg-glass: rgba(255, 255, 255, 0.9);
  
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  --text-main: #0f172a;
  --text-sub: #334155;
  --text-muted: #64748b;

  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 20px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.05);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --primary: #38bdf8;
  --primary-hover: #7dd3fc;
  --primary-light: #0c4a6e;
  --primary-dark: #bae6fd;

  --accent: #2dd4bf;
  --accent-light: #115e59;
  --accent-dark: #99f6e4;

  --amber: #fbbf24;
  --amber-light: #451a03;
  --amber-border: #b45309;

  --rose: #fb7185;
  --rose-light: #4c0519;
  --rose-border: #be123c;

  --purple: #a78bfa;
  --purple-light: #2e1065;

  --emerald: #4ade80;
  --emerald-light: #052e16;
  --emerald-border: #15803d;

  --bg-page: #0b1120;
  --bg-card: #131c31;
  --bg-elevated: #1e293b;
  --bg-glass: rgba(19, 28, 49, 0.9);

  --border: #1e293b;
  --border-strong: #334155;

  --text-main: #f8fafc;
  --text-sub: #cbd5e1;
  --text-muted: #94a3b8;

  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 8px -1px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 24px -3px rgba(0, 0, 0, 0.6);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
  padding: 0.5rem 0;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
}

.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
  flex-shrink: 0;
}

.brand-text h1 {
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.brand-text p {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.nav-tabs {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--bg-elevated);
  padding: 0.3rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.nav-tab {
  border: none;
  background: transparent;
  color: var(--text-sub);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.48rem 0.9rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-tab:hover {
  color: var(--primary);
  background: rgba(2, 132, 199, 0.06);
}

.nav-tab.active {
  background: var(--bg-card);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-sub);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.05rem;
  transition: var(--transition);
}

.btn-icon:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

/* Hero Banner */
.hero-banner {
  background: linear-gradient(135deg, #075985 0%, #0284c7 50%, #0d9488 100%);
  color: #ffffff;
  padding: 2rem 0 2.25rem;
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .hero-banner {
  background: linear-gradient(135deg, #082f49 0%, #0369a1 55%, #115e59 100%);
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.hero-title-group {
  max-width: 740px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  padding: 0.28rem 0.8rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.65rem;
}

.hero-title-group h2 {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 0.5rem;
}

.hero-title-group p {
  font-size: 0.96rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.55;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(115px, 1fr));
  gap: 0.75rem;
  width: 100%;
  margin-top: 0.25rem;
}

.stat-card {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(6px);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.15;
}

.stat-label {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.88);
  margin-top: 0.2rem;
}

/* Search & Control Panel */
.search-panel-wrap {
  margin-top: -1.35rem;
  position: relative;
  z-index: 20;
  margin-bottom: 1.5rem;
}

.search-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.search-row {
  display: flex;
  gap: 0.75rem;
  align-items: stretch;
  flex-wrap: wrap;
}

.search-input-group {
  flex: 1;
  min-width: 260px;
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 1rem;
  color: var(--text-muted);
  font-size: 1.1rem;
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 0.82rem 6.2rem 0.82rem 2.75rem;
  font-size: 0.98rem;
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg-page);
  color: var(--text-main);
  transition: var(--transition);
  outline: none;
}

.search-input:focus {
  border-color: var(--primary);
  background: var(--bg-card);
  box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.14);
}

.search-clear-btn {
  position: absolute;
  right: 3.4rem;
  background: var(--bg-elevated);
  border: none;
  color: var(--text-muted);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
}

.search-clear-btn.visible {
  display: inline-flex;
}

.search-clear-btn:hover {
  background: var(--rose-light);
  color: var(--rose);
}

.kbd-shortcut {
  position: absolute;
  right: 0.85rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 5px;
  pointer-events: none;
}

.filter-select {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background: var(--bg-page);
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  outline: none;
}

.filter-select:focus {
  border-color: var(--primary);
}

/* Quick Keyword Chips */
.quick-keywords {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.quick-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-right: 0.2rem;
}

.kw-chip {
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-sub);
  font-size: 0.79rem;
  font-weight: 600;
  padding: 0.28rem 0.7rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
}

.kw-chip:hover, .kw-chip.active {
  background: var(--primary-light);
  color: var(--primary-dark);
  border-color: var(--primary);
}

/* Category Pills */
.category-tabs {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
  scrollbar-width: thin;
}

.cat-pill {
  border: 1px solid var(--border);
  background: var(--bg-page);
  color: var(--text-sub);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  white-space: nowrap;
  transition: var(--transition);
}

.cat-pill:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.cat-pill.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 3px 10px rgba(2, 132, 199, 0.25);
}

.cat-count {
  font-size: 0.74rem;
  background: rgba(15, 23, 42, 0.08);
  padding: 0.1rem 0.45rem;
  border-radius: var(--radius-full);
}

[data-theme="dark"] .cat-count {
  background: rgba(255, 255, 255, 0.12);
}

.cat-pill.active .cat-count {
  background: rgba(255, 255, 255, 0.24);
  color: #fff;
}

/* Toolbar below search */
.results-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.1rem;
  flex-wrap: wrap;
}

.results-info {
  font-size: 0.92rem;
  color: var(--text-sub);
  font-weight: 600;
}

.results-info strong {
  color: var(--primary);
  font-weight: 800;
}

.toolbar-Controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn-tool {
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text-sub);
  padding: 0.42rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition);
}

.btn-tool:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-tool.active {
  background: var(--primary-light);
  color: var(--primary-dark);
  border-color: var(--primary);
}

/* Situation Cards Grid / List */
.situations-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.15rem;
  margin-bottom: 3rem;
}

.situations-grid.two-cols {
  grid-template-columns: repeat(auto-fill, minmax(520px, 1fr));
}

.sit-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.sit-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.sit-card.priority-high {
  border-left: 4px solid var(--primary);
}

.sit-card.is-mastered {
  border-left: 4px solid var(--emerald);
}

.sit-header {
  padding: 1.15rem 1.35rem 0.95rem;
  cursor: pointer;
  user-select: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.sit-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.sit-badges {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.badge-code {
  background: var(--primary);
  color: #ffffff;
  letter-spacing: 0.02em;
}

.badge-cat {
  background: var(--bg-elevated);
  color: var(--text-sub);
  border: 1px solid var(--border);
}

.badge-core {
  background: var(--amber-light);
  color: var(--amber);
  border: 1px solid var(--amber-border);
}

.badge-source {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

.sit-actions-top {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.action-chip {
  border: 1px solid var(--border);
  background: var(--bg-page);
  color: var(--text-muted);
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-sm);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: var(--transition);
}

.action-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.action-chip.bookmarked {
  background: var(--amber-light);
  color: var(--amber);
  border-color: var(--amber-border);
}

.action-chip.mastered {
  background: var(--emerald-light);
  color: var(--emerald);
  border-color: var(--emerald-border);
}

.sit-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.sit-title {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.4;
}

.sit-toggle-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-elevated);
  color: var(--text-sub);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: transform 0.25s ease, background-color 0.2s ease;
}

.sit-card.expanded .sit-toggle-icon {
  transform: rotate(180deg);
  background: var(--primary-light);
  color: var(--primary);
}

.sit-question-box {
  background: var(--bg-elevated);
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.93rem;
  color: var(--text-sub);
  font-weight: 500;
}

.sit-question-box strong {
  color: var(--text-main);
}

/* Body / Answer Section */
.sit-body {
  padding: 0 1.35rem 1.3rem;
  border-top: 1px dashed var(--border);
  display: none;
  flex-direction: column;
  gap: 0.95rem;
  margin-top: 0.2rem;
  padding-top: 1rem;
}

.sit-card.expanded .sit-body {
  display: flex;
}

.sit-summary-banner {
  background: var(--primary-light);
  border: 1px solid rgba(2, 132, 199, 0.25);
  color: var(--primary-dark);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.sit-summary-banner .icon {
  font-size: 1.1rem;
  line-height: 1.2;
}

.steps-heading {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.steps-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: var(--bg-page);
  border: 1px solid var(--border);
  padding: 0.7rem 0.95rem;
  border-radius: var(--radius-md);
  font-size: 0.93rem;
  color: var(--text-main);
  transition: var(--transition);
}

.step-item:hover {
  border-color: var(--primary);
}

.step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: #ffffff;
  font-size: 0.76rem;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.12rem;
}

.sit-note-box {
  background: var(--amber-light);
  border: 1px solid var(--amber-border);
  color: var(--text-main);
  padding: 0.7rem 0.95rem;
  border-radius: var(--radius-md);
  font-size: 0.86rem;
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
}

.sit-keywords-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  padding-top: 0.25rem;
}

.kw-tag {
  font-size: 0.74rem;
  color: var(--text-muted);
  background: var(--bg-elevated);
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
}

.kw-tag:hover {
  color: var(--primary);
  background: var(--primary-light);
}

/* Highlight search keyword */
mark.hl {
  background-color: #fde047;
  color: #0f172a;
  padding: 0.05rem 0.22rem;
  border-radius: 4px;
  font-weight: 700;
}

/* Section Views */
.view-section {
  display: none;
  padding-bottom: 3rem;
}

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

/* Theory / Principles Section */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.principle-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.principle-card h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.principle-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.principle-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.94rem;
  color: var(--text-sub);
}

.principle-list li strong {
  color: var(--text-main);
}

/* Practice / Flashcard Section */
.practice-container {
  max-width: 820px;
  margin: 1.5rem auto 3rem;
}

.practice-card {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.practice-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  border: none;
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-main);
  border: 1px solid var(--border-strong);
  padding: 0.75rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: var(--transition);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Empty State */
.empty-state {
  background: var(--bg-card);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 3rem 1.5rem;
  text-align: center;
  margin: 1.5rem 0;
}

.empty-state h3 {
  font-size: 1.2rem;
  margin: 0.5rem 0 0.35rem;
}

.empty-state p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 1rem;
}

/* Footer */
.site-footer {
  margin-top: auto;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  z-index: 90;
  transition: var(--transition);
}

.back-to-top.visible {
  display: inline-flex;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-title-group h2 {
    font-size: 1.4rem;
  }
  .situations-grid.two-cols {
    grid-template-columns: 1fr;
  }
  .header-inner {
    justify-content: center;
  }
  .nav-tabs {
    width: 100%;
    overflow-x: auto;
    justify-content: flex-start;
  }
  .practice-card {
    padding: 1.25rem;
  }
}

@media print {
  .site-header, .search-panel-wrap, .results-toolbar, .back-to-top, .sit-actions-top {
    display: none !important;
  }
  .sit-body {
    display: flex !important;
  }
  .sit-card {
    break-inside: avoid;
    margin-bottom: 1rem;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}