/* ==========================================================================
   COTXADES — Mobile-First Scout Design System
   Pure CSS • Zero CDN Dependencies • WCAG AA Accessible • Touch Ergonomic
   ========================================================================== */

/* --- 1. CSS Custom Properties & Design Tokens --- */
:root {
  /* Brand Scout Palette */
  --scout-green: #2d5a27;
  --scout-green-dark: #1b3817;
  --scout-green-light: #eaf3e8;
  --scout-green-subtle: #f4f8f3;
  --scout-green-border: #a7cf9f;

  /* Warm Scout Amber (Pending / Attention) */
  --scout-amber: #d97706;
  --scout-amber-dark: #92400e;
  --scout-amber-light: #fef3c7;
  --scout-amber-border: #fcd34d;

  /* Alert / Deficit Red */
  --scout-red: #dc2626;
  --scout-red-dark: #991b1b;
  --scout-red-light: #fee2e2;
  --scout-red-border: #fca5a5;

  /* Surfaces & Neutral Slate */
  --bg-color: #f6f8f5;
  --card-bg: #ffffff;
  --card-subtle: #f8fafc;
  --text-main: #1f2937;
  --text-muted: #4b5563;
  --text-light: #94a3b8;
  --border-color: #e2e8f0;
  --border-focus: #2d5a27;

  /* WhatsApp Brand Colors */
  --whatsapp-green: #25d366;
  --whatsapp-dark: #128c7e;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Touch Ergonomics & Layout */
  --touch-target-min: 48px;
  --container-max-width: 720px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Elevation Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.09), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-sheet: 0 -4px 25px rgba(0, 0, 0, 0.15);

  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.25s ease-in-out;
}

/* --- 2. Base Reset, Typography & Scrollbar Tuning --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Universal sleek scrollbars: rounded, thin, non-intrusive */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(45, 90, 39, 0.35) transparent;
}

*:hover {
  scrollbar-color: rgba(45, 90, 39, 0.6) transparent;
}

/* Chromium / WebKit custom scrollbars */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}

::-webkit-scrollbar-track {
  background: transparent;
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background-color: rgba(45, 90, 39, 0.28);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  background-clip: padding-box;
  transition: background-color var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
  background-color: rgba(45, 90, 39, 0.6);
}

::-webkit-scrollbar-corner {
  background: transparent;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
  scrollbar-gutter: stable;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem 1rem 5.5rem 1rem; /* bottom padding reserves space for sticky mobile action bar */
  -webkit-tap-highlight-color: transparent;
}

@media (min-width: 641px) {
  body {
    padding: 2rem 1.5rem 4rem 1.5rem;
  }
}

a {
  color: var(--scout-green);
  text-decoration: none;
  font-weight: 500;
}
a:hover {
  text-decoration: underline;
}

/* --- 3. App Shell & Container --- */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
}

/* Top Navigation Bar */
.app-header {
  width: 100%;
  max-width: var(--container-max-width);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding: 0.25rem 0;
  gap: 1rem;
}

.brand-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--scout-green-dark);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
}
.brand-title:hover {
  text-decoration: none;
  color: var(--scout-green);
}

.brand-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

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

/* Main Content Card Container */
.main-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border-top: 5px solid var(--scout-green);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  overflow: hidden;
}

@media (min-width: 641px) {
  .main-card {
    padding: 2rem;
  }
}

/* --- 4. Directional Tabs (Anada / Tornada) --- */
.trip-tabs {
  display: flex;
  gap: 0.5rem;
  background-color: var(--card-subtle);
  padding: 0.35rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  border: 1px solid var(--border-color);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.trip-tabs::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  flex: 1;
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  touch-action: manipulation;
  padding: 0.5rem 1rem;
  user-select: none;
}

.tab-btn:hover {
  background-color: rgba(45, 90, 39, 0.08);
  color: var(--scout-green-dark);
}

.tab-btn.active {
  background-color: var(--scout-green);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.tab-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.25);
  color: inherit;
}

.tab-btn:not(.active) .tab-badge {
  background-color: var(--border-color);
  color: var(--text-muted);
}

.tab-static-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--scout-green-light);
  color: var(--scout-green-dark);
  border: 1px solid var(--scout-green-border);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

/* --- 5. Status Banners --- */
.status-banner {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  animation: fadeIn 0.2s ease-in;
}

.status-banner-icon {
  font-size: 1.6rem;
  line-height: 1;
  flex-shrink: 0;
}

.status-banner-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.status-banner-content p {
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.4;
}

/* Complete Banner */
.status-banner.banner-complete {
  background: linear-gradient(135deg, #dcfce7, var(--scout-green-light));
  border: 1.5px solid var(--scout-green-border);
  color: var(--scout-green-dark);
}

/* Deficit Warning Banner */
.status-banner.banner-deficit {
  background-color: var(--scout-red-light);
  border: 1.5px solid var(--scout-red-border);
  color: var(--scout-red-dark);
}

/* Info / In-Progress Banner */
.status-banner.banner-info {
  background-color: var(--scout-amber-light);
  border: 1.5px solid var(--scout-amber-border);
  color: var(--scout-amber-dark);
}

/* --- 6. Occupancy Progress Meter --- */
.occupancy-container {
  background-color: var(--card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 1.25rem;
}

.occupancy-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.progress-bar-track {
  width: 100%;
  height: 14px;
  background-color: #e2e8f0;
  border-radius: var(--radius-full);
  overflow: hidden;
  display: flex;
  position: relative;
}

.progress-segment-occupied {
  background-color: var(--scout-green);
  height: 100%;
  transition: width var(--transition-normal);
}

.progress-segment-vacant {
  background-color: #86efac;
  height: 100%;
  transition: width var(--transition-normal);
}

.progress-segment-deficit {
  background-color: var(--scout-red);
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 6px,
    rgba(255, 255, 255, 0.3) 6px,
    rgba(255, 255, 255, 0.3) 12px
  );
  height: 100%;
  transition: width var(--transition-normal);
}

.occupancy-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.65rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.legend-dot.occupied { background-color: var(--scout-green); }
.legend-dot.vacant { background-color: #86efac; }
.legend-dot.deficit { background-color: var(--scout-red); }

/* --- 7. Metrics Summary Cards --- */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 641px) {
  .metrics-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.metric-card {
  background: var(--card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  text-align: center;
}

.metric-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.metric-value {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--text-main);
}

.metric-card.highlight-amber .metric-value {
  color: var(--scout-amber-dark);
}
.metric-card.highlight-green .metric-value {
  color: var(--scout-green);
}
.metric-card.highlight-red .metric-value {
  color: var(--scout-red);
}

/* --- 8. Pending Kids Section --- */
.pending-section {
  background-color: var(--scout-amber-light);
  border: 1.5px solid var(--scout-amber-border);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  margin-bottom: 1.5rem;
}

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

.pending-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--scout-amber-dark);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.chip-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.kid-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: #ffffff;
  color: var(--scout-amber-dark);
  border: 1px solid var(--scout-amber);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  max-width: 100%;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.kid-chip-empty {
  font-size: 0.9rem;
  color: var(--scout-green-dark);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0;
}

/* --- 9. Registered Cars Section & Car Cards --- */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--scout-green-dark);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.cars-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.car-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 1.1rem;
  transition: box-shadow var(--transition-fast);
}
.car-card:hover {
  box-shadow: var(--shadow-md);
}

.car-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  gap: 0.5rem;
}

.car-driver-info {
  display: flex;
  flex-direction: column;
}

.car-driver-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.car-contact {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.car-contact a {
  color: var(--scout-green);
  text-decoration: underline;
}

.car-seat-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.car-seat-badge.badge-full {
  background-color: var(--scout-green-light);
  color: var(--scout-green-dark);
  border: 1px solid var(--scout-green-border);
}

.car-seat-badge.badge-vacant {
  background-color: var(--scout-amber-light);
  color: var(--scout-amber-dark);
  border: 1px solid var(--scout-amber-border);
}

.car-seat-badge.badge-inactive {
  background-color: var(--card-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.car-passengers {
  margin-bottom: 0.85rem;
}

.car-passengers-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.passengers-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.passenger-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background-color: var(--scout-green-subtle);
  border: 1px solid var(--scout-green-border);
  color: var(--scout-green-dark);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-full);
  max-width: 100%;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.passenger-pill-empty {
  display: inline-flex;
  align-items: center;
  background-color: transparent;
  border: 1px dashed var(--border-color);
  color: var(--text-light);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-full);
}

.car-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 0.75rem;
}

.empty-state {
  text-align: center;
  padding: 2.5rem 1rem;
  background-color: var(--card-subtle);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-muted);
}
.empty-state-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

/* --- 10. Buttons & Interactive Controls (Strict 48px Ergonomics) --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: var(--touch-target-min);
  min-width: var(--touch-target-min);
  padding: 0.75rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  touch-action: manipulation;
  user-select: none;
  text-decoration: none;
  font-family: inherit;
}

.btn:focus-visible {
  outline: 3px solid var(--scout-green);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--scout-green);
  color: #ffffff;
}
.btn-primary:hover, .btn-primary:focus {
  background-color: var(--scout-green-dark);
  text-decoration: none;
  color: #ffffff;
}

.btn-secondary {
  background-color: var(--card-subtle);
  border-color: var(--border-color);
  color: var(--text-main);
}
.btn-secondary:hover {
  background-color: #e2e8f0;
}

.btn-whatsapp {
  background-color: var(--whatsapp-green);
  color: #ffffff;
  font-weight: 700;
}
.btn-whatsapp:hover {
  background-color: var(--whatsapp-dark);
  color: #ffffff;
}

.btn-danger {
  background-color: #ffffff;
  border-color: var(--scout-red-border);
  color: var(--scout-red);
}
.btn-danger:hover {
  background-color: var(--scout-red-light);
}

.btn-sm {
  min-height: 40px;
  padding: 0.4rem 0.85rem;
  font-size: 0.875rem;
}

.btn-full {
  width: 100%;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

/* --- 11. Sticky Mobile Bottom Action Bar --- */
.mobile-action-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid var(--border-color);
  box-shadow: var(--shadow-sheet);
  padding: 0.75rem 1rem;
  z-index: 50;
  display: flex;
  gap: 0.75rem;
  justify-content: center;
}

.mobile-action-bar .btn {
  flex: 1;
  max-width: 240px;
}

@media (min-width: 641px) {
  .mobile-action-bar {
    display: none !important; /* Hidden on desktop; buttons appear in header/content */
  }
}

/* --- 12. Forms & Input Ergonomics --- */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  min-height: var(--touch-target-min);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text-main);
  background-color: #ffffff;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.4;
  overflow-y: auto;
  overflow-x: hidden;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--scout-green);
  box-shadow: 0 0 0 3px rgba(45, 90, 39, 0.15);
}

.form-help {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
  line-height: 1.35;
}

/* Radio Pill Segmented Selector */
.radio-pill-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (min-width: 641px) {
  .radio-pill-group {
    flex-direction: row;
  }
}

.radio-pill-label {
  flex: 1;
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.6rem;
  padding: 0.75rem 1rem;
  background-color: var(--card-subtle);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  user-select: none;
}

.radio-pill-label:hover {
  background-color: #eaf3e8;
}

.radio-pill-label.selected,
.radio-pill-label:has(input:checked) {
  background-color: var(--scout-green-light);
  border-color: var(--scout-green);
  color: var(--scout-green-dark);
}

.radio-pill-label input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--scout-green);
  cursor: pointer;
}

/* File Upload Box Styled */
.file-upload-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

/* --- 13. Accessible Modals & Bottom Sheets --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 100;
  display: flex;
  align-items: flex-end; /* bottom sheet on mobile */
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

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

.modal-sheet {
  background: var(--card-bg);
  width: 100%;
  max-width: 580px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: var(--shadow-sheet);
  max-height: 90vh;
  max-height: 90dvh;
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform var(--transition-normal);
  overflow: hidden;
}

/* Quan el formulari embolcalla el cos i peu de la modal */
.modal-sheet form {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

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

@media (min-width: 641px) {
  .modal-overlay {
    align-items: center; /* Centered modal on desktop */
    padding: 1rem;
  }
  .modal-sheet {
    border-radius: var(--radius-lg);
    transform: scale(0.95);
    max-height: 85vh;
    max-height: 85dvh;
  }
  .modal-overlay.active .modal-sheet {
    transform: scale(1);
  }
}

.modal-header {
  flex-shrink: 0;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--card-bg);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--scout-green-dark);
}

.modal-close-btn {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  min-width: var(--touch-target-min);
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color var(--transition-fast);
}
.modal-close-btn:hover {
  background-color: var(--card-subtle);
  color: var(--text-main);
}

.modal-body {
  flex: 1 1 auto;
  min-height: 0;
  padding: 1.25rem 1.5rem;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

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

@media (max-width: 640px) {
  .modal-header {
    padding: 1rem 1.25rem;
  }
  .modal-body {
    padding: 1rem 1.25rem;
  }
  .modal-footer {
    padding: 0.75rem 1.25rem;
  }
  .modal-footer .btn {
    flex: 1;
  }
}

/* Passenger Checkbox Selector in Modal */
.checkbox-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 220px;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  padding: 0.5rem;
  padding-right: 0.65rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--card-subtle);
}

.checkbox-row {
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.85rem;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  user-select: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.checkbox-row:hover:not(.disabled) {
  background-color: #f1f7ef;
}

.checkbox-row.checked,
.checkbox-row:has(input:checked) {
  background-color: var(--scout-green-light);
  border-color: var(--scout-green);
}

.checkbox-row.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: var(--card-subtle);
}

.checkbox-row input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--scout-green);
  cursor: pointer;
}

.checkbox-row input[type="checkbox"]:disabled {
  cursor: not-allowed;
}

.checkbox-row-name {
  font-weight: 600;
  font-size: 0.95rem;
}

/* --- 14. Toast Feedback System --- */
.toast-container {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
  max-width: 90vw;
}

.toast {
  pointer-events: auto;
  background-color: var(--text-main);
  color: #ffffff;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  animation: slideInDown 0.25s ease-out;
}

.toast.toast-success {
  background-color: var(--scout-green-dark);
  border-left: 4px solid #86efac;
}

.toast.toast-error {
  background-color: var(--scout-red-dark);
  border-left: 4px solid #fca5a5;
}

.toast.toast-info {
  background-color: var(--text-main);
  border-left: 4px solid var(--scout-amber);
}

.toast-close {
  background: none;
  border: none;
  color: inherit;
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0.8;
  padding: 0 0.25rem;
}
.toast-close:hover {
  opacity: 1;
}

/* --- 15. Keyframe Animations --- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinner {
  display: inline-block;
  width: 1.5rem;
  height: 1.5rem;
  border: 3px solid rgba(45, 90, 39, 0.2);
  border-radius: 50%;
  border-top-color: var(--scout-green);
  animation: spin 0.8s linear infinite;
}

/* --- 16. App Footer --- */
.app-footer {
  width: 100%;
  max-width: var(--container-max-width);
  text-align: center;
  padding: 2rem 1rem 3.5rem 1rem;
  margin-top: 2rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border-color);
  line-height: 1.5;
}

.footer-retention-note {
  margin-top: 0.4rem;
  font-size: 0.8rem;
  color: #64748b;
}