/* CanReduce ACT Harm Reduction - Design System & Modern CSS */
:root {
  color-scheme: light;
  --bg-primary: #eceeef;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #e4edf3;
  --bg-inset: #edf0f3;
  --bg-soft: rgba(49, 57, 65, 0.05);
  --bg-hover: rgba(163, 191, 210, 0.28);
  --header-bg: #232528;
  --nav-text: #ffffff;
  --nav-muted: #f0f1f2;
  --accent-ink: #3c627c;
  --border-color: #d9dde2;
  --border-focus: #3c627c;
  --text-main: #26262d;
  --text-muted: #555e69;
  --text-dim: #626c78;
  --accent-cyan: #a3bfd2;
  --accent-blue: #a3bfd2;
  --accent-soft: #e4edf3;
  --accent-border: #a3bfd2;
  --accent-contrast: #202a32;
  --accent-emerald: #08744f;
  --accent-amber: #8a5800;
  --accent-rose: #bb2440;
  --accent-purple: #7255a0;
  --danger-bg: rgba(239, 68, 68, 0.10);
  --danger-border: #ef4444;
  --danger-text: #b42323;
  --warning-bg: rgba(245, 158, 11, 0.10);
  --warning-border: #f59e0b;
  --warning-text: #855400;
  --success-bg: rgba(16, 185, 129, 0.10);
  --success-border: #10b981;
  --success-text: #08744f;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px var(--bg-inset);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-glow-cyan: 0 0 20px rgba(6, 182, 212, 0.25);
  --shadow-glow-rose: 0 0 25px rgba(244, 63, 94, 0.35);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

.site-footer {
  padding: 16px 20px 24px;
  text-align: center;
  font-size: .75rem;
  color: var(--text-muted);
}
.site-footer a { color: inherit; text-underline-offset: 3px; }
.site-footer a:hover { color: var(--text-main); }

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(80px + env(safe-area-inset-bottom, 0px)); /* Space for mobile nav */
}

/* Background ambient light */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  max-width: 100vw;
  height: 400px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.15) 0%, rgba(139, 92, 246, 0.05) 50%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Header & Navigation */
header.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 20px;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  flex: 1;
  min-width: 0;
}

.brand-logo {
  width: 180px;
  height: auto;
  flex-shrink: 0;
  object-fit: contain;
  background: transparent;
  border-radius: var(--radius-md);
  display: block;
}

.brand-text {
  min-width: 0;
}

.header-app-icon {
  display: block;
  width: 56px;
  height: 56px;
  flex: 0 0 56px;
  align-self: flex-start;
  object-fit: contain;
  border-radius: 10px;
}

@media (max-width: 640px) {
  .header-app-icon {
    width: 48px;
    height: 48px;
    flex-basis: 48px;
    border-radius: 8px;
  }

  .brand-wrapper { flex-wrap: wrap; }

  .brand-logo {
    width: 140px;
  }
}

.brand-text h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.badge-act {
  font-size: 0.65rem;
  text-transform: uppercase;
  background: var(--accent-soft);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-border);
  padding: 2px 6px;
  border-radius: var(--radius-full);
  font-weight: 700;
}

.brand-text p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

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

.btn-sos {
  background: linear-gradient(135deg, #e11d48, #ef4444);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  padding: 8px 16px;
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: var(--shadow-glow-rose);
  animation: pulse-soft 2s infinite;
  transition: transform var(--transition-fast);
}

.btn-sos:hover {
  transform: scale(1.04);
}

@keyframes pulse-soft {
  0%, 100% { box-shadow: 0 0 10px rgba(244, 63, 94, 0.3); }
  50% { box-shadow: 0 0 24px rgba(244, 63, 94, 0.6); }
}

/* Nav Tabs */
nav.desktop-nav {
  display: none;
  gap: 8px;
}

@media (min-width: 860px) {
  nav.desktop-nav {
    display: flex;
    order: 3;
    width: 100%;
    flex-wrap: wrap;
  }
}

.nav-tab-btn {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

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

.nav-tab-btn.active {
  color: var(--accent-cyan);
  background: var(--accent-soft);
  border-color: var(--accent-border);
}

/* Mobile Bottom Navigation Bar */
nav.mobile-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-color);
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  padding: 6px 4px calc(6px + env(safe-area-inset-bottom, 0px));
  z-index: 100;
}

@media (min-width: 860px) {
  nav.mobile-nav {
    display: none;
  }
}

.mobile-nav-btn {
  min-width: 0;
  min-height: 48px;
  line-height: 1.3;
  white-space: nowrap;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 6px 0;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.mobile-nav-btn svg {
  width: 20px;
  height: 20px;
}

.mobile-nav-btn.active {
  color: var(--accent-cyan);
}

/* Main Container & Layout */
main.app-main {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px;
  z-index: 1;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.25s ease-out;
}

.tab-pane.active {
  display: block;
}

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

/* Hero Banners & Section Headers */
.section-hero {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-inset));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.hero-highlight {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  color: var(--accent-cyan);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.section-hero h2 {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.section-hero p {
  color: var(--text-muted);
  max-width: 720px;
  font-size: 0.95rem;
}

/* Status Indicator Pill */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
}

.status-pill.open {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success-text);
}

.status-pill.closed {
  background: rgba(148, 163, 184, 0.1);
  border: 1px solid rgba(148, 163, 184, 0.3);
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.status-pill.open .status-dot {
  animation: pulse-dot 1.5s infinite;
}

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

/* Cards & Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.card:hover {
  border-color: var(--accent-border);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Alerts System */
.alert-card {
  border-left: 4px solid transparent;
  margin-bottom: 16px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 18px;
  border-top: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.alert-card.danger {
  border-left-color: #ef4444;
  background: linear-gradient(90deg, rgba(239, 68, 68, 0.08) 0%, var(--bg-card) 60%);
}

.alert-card.warning {
  border-left-color: #f59e0b;
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.08) 0%, var(--bg-card) 60%);
}

.alert-card.info {
  border-left-color: var(--accent-blue);
  background: linear-gradient(90deg, var(--accent-soft) 0%, var(--bg-card) 60%);
}

.badge-alert {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.badge-alert.danger { background: #ef4444; color: white; }
.badge-alert.warning { background: #f59e0b; color: black; }
.badge-alert.info { background: var(--accent-blue); color: white; }

/* Filter Buttons & Categories */
.filter-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  margin-bottom: 20px;
  scrollbar-width: none;
}

.filter-bar::-webkit-scrollbar {
  display: none;
}

.filter-btn {
  background: var(--bg-soft);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.filter-btn.active {
  background: var(--accent-cyan);
  color: var(--accent-contrast);
  border-color: var(--accent-cyan);
  font-weight: 700;
}

#drug-categories-bar {
  flex-wrap: wrap;
  gap: 10px;
  overflow-x: visible;
}
#drug-categories-bar .filter-btn {
  min-height: 48px;
  padding: 12px 20px;
  font-size: 1rem;
}

/* Search input */
.search-box {
  position: relative;
  margin-bottom: 20px;
}

.search-input {
  width: 100%;
  background: var(--bg-inset);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px 12px 42px;
  color: var(--text-main);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--border-focus);
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  pointer-events: none;
}

/* Substance Card Details */
.peer-support-card { display: flex; align-items: center; gap: 24px; border-color: rgba(167,139,250,.3); }
.peer-support-card > div { flex: 1; }
.peer-support-card h3 { font-size: 1.05rem; margin: 8px 0; }
.peer-support-card p, .substance-photo-note { color: var(--text-muted); font-size: .85rem; line-height: 1.6; }
.cahma-logo-link { background: white; padding: 20px; border-radius: var(--radius-sm); flex-shrink: 0; }
.cahma-logo-link img { display: block; width: 160px; height: auto; }
.substance-photo-note { margin: 0 0 20px; }
.substance-photo { margin: 0 0 18px; }
.substance-photo img { display: block; width: 100%; height: 180px; object-fit: cover; border-radius: var(--radius-sm); }
.substance-photo figcaption { font-size: .65rem; line-height: 1.6; color: var(--text-muted); margin-top: 6px; }
.substance-photo a { color: var(--accent-cyan); }
#substance-modal-body .substance-photo img { height: 260px; }
@media (max-width: 640px) { .peer-support-card { flex-direction: column; align-items: flex-start; gap: 16px; } }

.substance-card {
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

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

.substance-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin: 10px 0;
}

.meta-chip {
  font-size: 0.72rem;
  background: var(--bg-soft);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

/* Modals & Drawers */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-backdrop.active {
  display: flex;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 24px;
  box-shadow: var(--shadow-lg);
  position: relative;
  animation: modalPop 0.2s ease-out;
}

@keyframes modalPop {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.modal-close-btn {
  position: absolute;
  top: 18px;
  right: 18px;
  background: #f58220;
  border: 2px solid #29160e;
  color: #29160e;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  font-size: 24px;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.sheet-close-bar,
.emergency-sheet-header {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  background: var(--bg-secondary);
}

.sheet-close-bar { justify-content: flex-end; }
.emergency-sheet-header { margin-bottom: 16px; }
.sheet-close-bar .modal-close-btn,
.emergency-sheet-header .modal-close-btn { position: static; }

.modal-close-btn:focus-visible {
  outline: 3px solid var(--text-main);
  outline-offset: 3px;
}

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

/* Naloxone Step-by-Step Simulator */
.stepper-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.stepper-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 4px 8px;
}

.stepper-dot {
  width: 64px;
  height: 64px;
  padding: 0;
  border-radius: 50%;
  background: var(--bg-hover);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.stepper-dot.active {
  background: var(--accent-cyan);
  color: var(--accent-contrast);
  border-color: var(--accent-cyan);
  transform: scale(1.1);
}

.stepper-dot.completed {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-text);
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

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

.step-instruction-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 16px 0;
}

.step-instruction-list li {
  padding-left: 28px;
  position: relative;
  color: var(--text-muted);
}

.step-instruction-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
  font-weight: 800;
}

.formulation-toggle {
  display: inline-flex;
  background: var(--bg-inset);
  padding: 4px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.toggle-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.toggle-btn.active {
  background: var(--accent-cyan);
  color: var(--accent-contrast);
}

/* CPR Metronome Box */
.metronome-box {
  background: var(--bg-inset);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  margin-top: 20px;
}

.pulse-circle {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 20px auto;
  background: var(--accent-soft);
  border: 3px solid var(--accent-cyan);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: transform 0.08s ease-out, background-color 0.08s ease-out;
}

.pulse-circle.beat {
  transform: scale(1.15);
  background: var(--accent-border);
  box-shadow: 0 0 30px var(--accent-border);
}

.btn-primary {
  background: var(--accent-cyan);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

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

.btn-secondary {
  background: var(--bg-hover);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

/* Quiz UI */
.quiz-option {
  background: var(--bg-soft);
  border: 1px solid var(--border-color);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.quiz-option:hover {
  background: var(--bg-hover);
  border-color: var(--accent-border);
}

.quiz-option.correct {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-text);
}

.quiz-option.incorrect {
  background: var(--danger-bg);
  border-color: var(--danger-border);
  color: var(--danger-text);
}

/* Interactions Matrix UI */
.interaction-selector-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

@media (max-width: 640px) {
  .interaction-selector-grid {
    grid-template-columns: 1fr;
  }
}

.select-custom {
  width: 100%;
  background: var(--bg-inset);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
}

.select-custom:focus {
  outline: none;
  border-color: var(--border-focus);
}

.badge-dangerous { background: #ef4444; color: white; }
.badge-unsafe { background: #f97316; color: white; }
.badge-caution { background: #eab308; color: black; }
.badge-synergy { background: #10b981; color: white; }
.badge-neutral { background: #06b6d4; color: white; }

.badge-pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 10px;
}

/* Emergency Drawer / Overlay */
.emergency-sheet {
  background: var(--bg-secondary);
  max-height: 90vh;
  max-height: 90dvh;
  overflow-y: auto;
  border-top: 2px solid #ef4444;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 600px;
  margin: 0 auto;
  z-index: 300;
  padding: 24px 20px calc(24px + env(safe-area-inset-bottom, 0px));
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.8);
  transform: translateY(100%);
  transition: transform 0.25s ease-out;
}

.emergency-sheet.active {
  transform: translateY(0);
}

.emergency-btn-call {
  background: #ef4444;
  color: white;
  text-decoration: none;
  padding: 16px;
  border-radius: var(--radius-md);
  font-size: 1.25rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 16px;
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.4);
}

.emergency-contacts-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-soft);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text-main);
  transition: background var(--transition-fast);
}

.contact-row:hover {
  background: var(--bg-hover);
}

/* Utilities */
.text-cyan { color: var(--accent-cyan); }
.text-rose { color: var(--accent-rose); }
.text-amber { color: var(--accent-amber); }
.text-emerald { color: var(--accent-emerald); }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }

/* Home: peer support and community locations */
.home-card p { color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
.home-card .app-features { color: var(--text-muted); line-height: 1.7; margin: 0 0 16px; padding-left: 24px; list-style: disc; }
.home-card .app-features li + li { margin-top: 8px; }
.home-links { display: flex; flex-wrap: wrap; gap: 12px; }
.home-map { display: block; width: 100%; height: 360px; border: 0; border-radius: var(--radius-sm); margin: 16px 0; background: var(--bg-card); }
.home-bbq-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 16px 0 20px; }
.home-bbq-list a { display: flex; flex-direction: column; gap: 6px; padding: 16px; border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-main); text-decoration: none; }
.home-bbq-list a:hover { border-color: var(--border-focus); }
.home-bbq-list span { color: var(--text-muted); font-size: .85rem; }
@media (max-width: 640px) { .home-bbq-list { grid-template-columns: 1fr; } .home-map { height: 280px; } }

/* Charcoal and muted blue, inspired by RTO Standards Companion. */
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg-primary: #1c1c1e;
  --bg-secondary: #2c2d30;
  --bg-card: #2c2d30;
  --bg-card-hover: #343b42;
  --bg-inset: #242527;
  --bg-soft: rgba(255, 255, 255, 0.05);
  --bg-hover: rgba(163, 191, 210, 0.18);
  --header-bg: #232528;
  --nav-text: #eeeeee;
  --nav-muted: #bfc2c5;
  --accent-ink: #a3bfd2;
  --border-color: #3a3a41;
  --border-focus: #a3bfd2;
  --text-main: #d4d4d4;
  --text-muted: #b6b8bc;
  --text-dim: #a0a4ab;
  --accent-cyan: #a3bfd2;
  --accent-blue: #a3bfd2;
  --accent-soft: rgba(163, 191, 210, 0.10);
  --accent-border: rgba(163, 191, 210, 0.30);
  --accent-contrast: #161618;
  --accent-emerald: #6ee7b7;
  --accent-amber: #fcd34d;
  --accent-rose: #fca5a5;
  --danger-text: #fca5a5;
  --warning-text: #fcd34d;
  --success-text: #6ee7b7;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
}
:root[data-theme="light"] { --shadow-sm: 0 2px 8px rgba(38, 38, 45, 0.06); }
.ambient-glow { display: none; }
.peer-support-card { border-color: var(--accent-border); }
.btn-primary { color: var(--accent-contrast); }
.theme-toggle { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; padding: 0; background: var(--bg-secondary); color: var(--text-main); border: 1px solid var(--border-color); border-radius: var(--radius-full); font: inherit; font-size: 1.25rem; font-weight: 600; cursor: pointer; }
.theme-toggle:hover { background: var(--bg-inset); }
button:focus-visible, a:focus-visible { outline: 2px solid var(--border-focus); outline-offset: 3px; }
.brand-logo { background: #161618; padding: 8px; }
@media (max-width: 640px) { .header-actions { width: 100%; justify-content: space-between; } }

/* Navigation strips and consistent muted-blue interaction states. */
header.app-header, nav.mobile-nav { color: var(--nav-text); border-color: transparent; }
.brand-text p, .nav-tab-btn, .mobile-nav-btn { color: var(--nav-muted); }
.brand-logo { background: transparent; }
.section-hero { background: var(--bg-card); }
.hero-highlight { background: var(--accent-cyan); color: var(--accent-contrast); }
.text-cyan, .substance-photo a, .step-instruction-list li::before { color: var(--accent-ink); }
.nav-tab-btn.active, .nav-tab-btn:hover, .nav-tab-btn:active,
.mobile-nav-btn.active, .mobile-nav-btn:hover, .mobile-nav-btn:active {
  background: var(--accent-cyan); color: var(--accent-contrast); border-color: var(--accent-cyan);
}
.mobile-nav-btn { border-radius: var(--radius-sm); }
.btn-secondary:hover, .btn-secondary:active, .theme-toggle:hover, .theme-toggle:active,
.filter-btn:hover, .filter-btn:active, .toggle-btn:hover, .toggle-btn:active,
.stepper-dot:hover, .stepper-dot:active, .modal-close-btn:hover, .modal-close-btn:active {
  background: var(--accent-cyan); color: var(--accent-contrast); border-color: var(--accent-cyan);
}
.btn-primary:hover, .btn-primary:active { background: #b8cddd; color: var(--accent-contrast); }
.quiz-option:hover, .quiz-option:active, .contact-row:hover, .contact-row:active,
.home-bbq-list a:hover, .home-bbq-list a:active, .substance-card:hover, .substance-card:active {
  background: var(--bg-hover); border-color: var(--accent-cyan);
}
.badge-neutral, .badge-alert.info { background: var(--accent-cyan); color: var(--accent-contrast); }

/* CAHMA branding and contact actions. */
.brand-logo-link { display: flex; flex-shrink: 0; align-items: center; background: #fff; border-radius: var(--radius-sm); padding: 14px 18px; }
.brand-logo { width: 160px; height: auto; padding: 0; border-radius: 0; }
.brand-text h1 { font-size: clamp(1.65rem, 3.2vw, 2.35rem); font-weight: 800; line-height: 1.15; letter-spacing: -.035em; }
.header-tagline { order: 4; width: 100%; color: var(--nav-text); font-size: .95rem; padding-top: 10px; border-top: 0; }
#tab-home > .grid-2 { grid-template-columns: 1fr; }
.cahma-intro .card-title { font-size: 1.5rem; }
.intro-links { margin: 0 0 20px; gap: 14px; }
.intro-link { display: inline-flex; align-items: center; gap: 24px; padding: 12px 18px; background: var(--accent-cyan); color: var(--accent-contrast); border-radius: var(--radius-sm); font-weight: 700; text-decoration: none; }
.intro-link:hover, .intro-link:active { background: #b8cddd; }
.cahma-action { display: inline-flex; align-items: center; background: #D16947; border-color: #D16947; color: #1c1c1e; text-decoration: none; }
.cahma-action:hover, .cahma-action:active { background: #db8a70; border-color: #db8a70; color: #1c1c1e; }
.bbq-connection-icon { width: 36px; height: 36px; flex-shrink: 0; margin-bottom: 6px; color: #f58220; transition: color .15s ease; }
.home-bbq-list a:hover .bbq-connection-icon,
.home-bbq-list a:focus-visible .bbq-connection-icon,
.home-bbq-list a:active .bbq-connection-icon { color: #000; }
@media (max-width: 640px) {
  .brand-wrapper { gap: 14px; }
  .brand-logo-link { padding: 10px 12px; }
  .brand-logo { width: 115px; }
  .brand-text h1 { font-size: clamp(1.4rem, 5vw, 1.85rem); }
  .header-tagline { font-size: .82rem; }
}

/* Flat orange home actions with soft drop shadows. */
.header-tagline {
  font-family: var(--font-sans);
  font-size: .8rem;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: normal;
}
.home-card .contact-address { font-size: inherit; line-height: 1.65; }
.intro-link, :is(#tab-home, #tab-community) .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 13px 24px;
  border: 1px solid transparent;
  border-radius: 14px;
  background: #ed8b4b;
  color: #29160e;
  font-size: .88rem;
  font-weight: 700;
  text-decoration: none;
  text-shadow: none;
  box-shadow: 0 4px 10px rgba(76,32,13,.2);
  transition: background .18s ease, box-shadow .18s ease;
}
.intro-link:hover, :is(#tab-home, #tab-community) .btn-secondary:hover {
  background: #f58220;
  color: #29160e;
  border-color: transparent;
  transform: none;
  box-shadow: 0 5px 14px rgba(76,32,13,.25);
}
.intro-link:active, :is(#tab-home, #tab-community) .btn-secondary:active {
  background: #e77718;
  transform: none;
  box-shadow: 0 2px 5px rgba(76,32,13,.18);
}
.cahma-action svg { width: 19px; height: 19px; flex-shrink: 0; }
.home-links { row-gap: 18px; }
.nav-tab-btn:hover, .mobile-nav-btn:hover,
.btn-primary:hover, .btn-secondary:hover, .theme-toggle:hover,
.filter-btn:hover, .toggle-btn:hover, .stepper-dot:hover, .modal-close-btn:hover {
  background: #f58220;
  border-color: #f58220;
  color: #29160e;
}
@media (prefers-reduced-motion: reduce) {
  .intro-link, :is(#tab-home, #tab-community) .btn-secondary { transition: none; }
}

/* Sans-serif reading text and strong block titles. */
h1, h2, h3, h4, button, input, select, .intro-link, .btn-primary, .btn-secondary,
.mobile-nav, .desktop-nav { font-family: var(--font-sans); }
.brand-logo-link { background: transparent; padding: 0; border-radius: 0; }
.brand-logo { width: 180px; height: auto; background: transparent; }
.card-title, .cahma-intro .card-title {
  font-size: clamp(1.5rem, 2.6vw, 1.9rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.025em;
  margin-bottom: 16px;
}
.section-hero h2 { font-size: clamp(1.9rem, 3.5vw, 2.5rem); font-weight: 900; }
@media (max-width: 640px) {
  .brand-logo-link { padding: 0; }
  .brand-logo { width: 130px; }
}

/* Keep bottom-menu hover and keyboard focus orange, including active tabs. */
.mobile-nav-btn:hover, .mobile-nav-btn.active:hover,
.mobile-nav-btn:focus-visible, .mobile-nav-btn:active {
  background: #f58220;
  color: #29160e;
  border-color: #f58220;
}

/* Compact header with the guide description beside the logo. */
header.app-header { padding: 10px 16px; }
.header-container { gap: 10px 14px; }
.brand-text h1 { white-space: nowrap; line-height: 1.1; }
.brand-text .header-tagline {
  width: auto;
  margin-top: 4px;
  padding-top: 0;
  border: 0;
  font-size: .78rem;
  line-height: 1.35;
  color: var(--nav-text);
}
@media (max-width: 640px) {
  header.app-header { padding: 8px 12px; }
  .brand-wrapper { gap: 10px; }
  .brand-logo { width: 105px; }
  .brand-text .header-tagline { font-size: .72rem; }
}

/* Orange interaction states for the lower home blocks. */
:is(#tab-home, #tab-community) .home-card:hover { border-color: #f58220; }
.home-bbq-list a:hover, .home-bbq-list a:focus-visible, .home-bbq-list a:active {
  background: #f58220;
  border-color: #f58220;
  color: #29160e;
}
.home-bbq-list a:hover span, .home-bbq-list a:focus-visible span, .home-bbq-list a:active span {
  color: #29160e;
}
.home-bbq-list a { transition: background .15s ease, border-color .15s ease, color .15s ease; }

/* Orange selected state for bottom navigation. */
.mobile-nav-btn.active {
  background: #f58220;
  border-color: #f58220;
  color: #29160e;
}

/* Artwork header; charcoal remains the fallback while the image loads. */
header.app-header {
  background-color: var(--header-bg);
  background-image: linear-gradient(rgba(20,22,24,.58), rgba(20,22,24,.58)), url('../assets/backdrop2.jpeg');
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
:root[data-theme="light"] header.app-header {
  background-image: linear-gradient(rgba(20,22,24,.58), rgba(20,22,24,.58)), url('../assets/treeswirl.png');
}
header.app-header .brand-text { text-shadow: 0 1px 3px rgba(0,0,0,.7); }

/* Deeper artwork header, larger CAHMA mark, and discreet image credit. */
header.app-header { padding: 18px 16px 13px; }
.brand-logo { width: 225px; }
.brand-text h1 { font-size: clamp(1.8rem, 3.4vw, 2.5rem); }
.header-image-credit {
  position: absolute;
  left: 10px;
  bottom: 4px;
  color: #fff;
  font-family: var(--font-sans);
  font-size: .6rem;
  font-weight: 400;
  line-height: 1.2;
  text-shadow: 0 1px 3px rgba(0,0,0,.9);
}
.intro-links { margin-bottom: 0; }
@media (max-width: 640px) {
  header.app-header { padding: 14px 12px 11px; }
  .brand-logo { width: 145px; }
  .brand-text h1 { font-size: clamp(1.5rem, 5.3vw, 2rem); }
}

/* Compact mobile version of the desktop branding arrangement. */
@media (max-width: 640px) {
  .brand-wrapper {
    display: grid;
    grid-template-columns: 48px clamp(90px, 29vw, 125px) minmax(0, 1fr);
    align-items: center;
    gap: 8px;
    flex-basis: 100%;
  }
  .header-app-icon {
    grid-column: 1;
    grid-row: 1;
    align-self: start;
  }
  .brand-logo-link { grid-column: 2; grid-row: 1; }
  .brand-logo { width: 100%; }
  .brand-text { grid-column: 3; grid-row: 1; }
  .brand-text h1 {
    font-size: clamp(1.05rem, 4.5vw, 1.4rem);
    white-space: normal;
  }
  header.app-header { padding: 8px 12px 14px; }
  .header-container { gap: 4px 10px; }
  .header-actions { justify-content: flex-end; gap: 8px; }
  .header-actions .theme-toggle {
    width: 32px;
    height: 32px;
    font-size: 1.05rem;
  }
  .header-actions .btn-sos {
    min-height: 32px;
    padding: 6px 12px;
    gap: 6px;
    font-size: .72rem;
    line-height: 1.2;
  }
  .header-actions .btn-sos svg { width: 15px; height: 15px; }
}


/* Full-width artwork link on the Community page. */
.community-art-link { display: block; border-radius: var(--radius-sm); }
.community-art-image { display: block; width: 100%; height: auto; border-radius: var(--radius-sm); }
.community-art-link:hover { outline: 2px solid #f58220; outline-offset: 3px; }

/* Connection service text with equally sized flags alongside it. */
.connection-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 160px;
  align-items: center;
  gap: 24px;
  margin-bottom: 16px;
}
.connection-content p { margin-bottom: 0; }
.connection-flags { display: grid; gap: 12px; }
.connection-flags img { display: block; width: 100%; height: auto; }
@media (max-width: 640px) {
  .connection-content { grid-template-columns: 1fr; gap: 16px; }
  .connection-flags { grid-template-columns: repeat(2, minmax(0, 160px)); align-items: center; }
}

/* Naloxone introduction with its graphic on the right. */
.naloxone-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(180px, 280px);
  align-items: center;
  gap: 24px;
}
.naloxone-intro-copy { min-width: 0; }
.naloxone-intro-image {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}
@media (max-width: 640px) {
  .naloxone-intro { grid-template-columns: 1fr; }
  .naloxone-intro-image { max-width: 280px; justify-self: center; }
}

/* Additional safety sections for detailed substance guides. */
.drug-safety-message { margin: 12px 0; padding: 12px; border-left: 3px solid #f58220; background: var(--bg-inset); border-radius: var(--radius-sm); }
.drug-interactions { margin-bottom: 16px; padding: 14px; border-left: 3px solid #f58220; background: var(--bg-inset); border-radius: var(--radius-sm); }
.drug-interactions ul { padding-left: 20px; margin-top: 8px; color: var(--text-muted); font-size: .88rem; line-height: 1.6; }
.drug-emergency-info { margin-top: 16px; padding: 14px; border: 1px solid var(--danger-text); border-radius: var(--radius-sm); }
.drug-emergency-info p { margin-top: 8px; font-size: .88rem; color: var(--text-muted); }
.drug-emergency-info a, .drug-profile-sources a { color: var(--accent-ink); }
.drug-profile-sources { margin-top: 16px; font-size: .8rem; color: var(--text-muted); }

/* Substance, mindset and setting reflection tool. */
.experience-tool > p { color: var(--text-muted); line-height: 1.7; }
.experience-layout { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 32px; align-items: center; margin: 24px 0; }
.experience-controls { display: grid; gap: 28px; min-width: 0; }
.experience-control label { display: block; font-weight: 700; margin-bottom: 6px; }
.experience-control output { display: block; color: var(--text-muted); font-size: .85rem; line-height: 1.5; }
.experience-control input { appearance: none; -webkit-appearance: none; display: block; width: 100%; height: 56px; margin: 8px 0; background: transparent; cursor: pointer; --slider-colour: hsl(120 70% 45%); }
.experience-control input::-webkit-slider-runnable-track { height: 16px; border-radius: 999px; background: linear-gradient(to right, #39b54a, #f59e0b, #e53935); }
.experience-control input::-moz-range-track { height: 16px; border-radius: 999px; background: linear-gradient(to right, #39b54a, #f59e0b, #e53935); }
.experience-control input::-webkit-slider-thumb { appearance: none; -webkit-appearance: none; width: 44px; height: 44px; margin-top: -14px; border: 3px solid var(--text-main); border-radius: 50%; background: var(--slider-colour); box-shadow: 0 2px 6px rgba(0,0,0,.35); }
.experience-control input::-moz-range-thumb { box-sizing: border-box; width: 44px; height: 44px; border: 3px solid var(--text-main); border-radius: 50%; background: var(--slider-colour); box-shadow: 0 2px 6px rgba(0,0,0,.35); }
.experience-control input:focus-visible { outline: 3px solid var(--border-focus); outline-offset: 4px; border-radius: 8px; }
.experience-ends { display: flex; justify-content: space-between; gap: 20px; color: var(--text-muted); font-size: .8rem; line-height: 1.5; }
.experience-ends span { max-width: 48%; }
.experience-ends span:last-child { text-align: right; }
.experience-result { padding: 24px; border-radius: var(--radius-md); background: var(--bg-inset); text-align: center; border: 2px solid var(--border-color); }
.experience-face { display: block; width: min(100%, 190px); margin: 0 auto 16px; }
.experience-result p { font-size: 1.15rem; font-weight: 700; line-height: 1.5; }
.experience-tool[data-level="uncertain"] .experience-result { border-color: #ed8b4b; }
.experience-tool[data-level="higher"] .experience-result { border-color: var(--danger-text); }
.experience-tool .experience-reminder { margin: 0 0 20px; font-size: .88rem; }
@media (max-width: 640px) {
  .experience-layout { grid-template-columns: minmax(0, 1fr); gap: 24px; }
}