/* ==========================================================================
   TransitFleets - Corporate Outstation Mobility Stylesheet
   Design Language: Formal Enterprise Fleet & Transportation Architecture
   ========================================================================== */

:root {
  --tf-navy-950: #070e18;
  --tf-navy-900: #0b1523;
  --tf-navy-800: #112239;
  --tf-navy-700: #182e4b;
  --tf-blue-primary: #1d4ed8;
  --tf-blue-hover: #1e40af;
  --tf-blue-accent: #2563eb;
  --tf-blue-subtle: #eff6ff;
  --tf-forest-primary: #0f766e;
  --tf-forest-hover: #115e59;
  --tf-slate-50: #f8fafc;
  --tf-slate-100: #f1f5f9;
  --tf-slate-200: #e2e8f0;
  --tf-slate-300: #cbd5e1;
  --tf-slate-400: #94a3b8;
  --tf-slate-500: #64748b;
  --tf-slate-600: #475569;
  --tf-slate-700: #334155;
  --tf-slate-800: #1e293b;
  --tf-slate-900: #0f172a;
  --tf-radius-sm: 6px;
  --tf-radius-md: 8px;
  --tf-radius-lg: 12px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--tf-slate-800);
  background-color: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------------------------------------
   Top Notice Bar & Navigation Architecture
   -------------------------------------------------------------------------- */
.top-notice-bar {
  background-color: var(--tf-navy-950);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
}

.navbar {
  background-color: #ffffff;
  border-bottom: 1px solid var(--tf-slate-200);
}

.navbar-brand {
  padding: 0;
  margin-right: 2rem;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   Brand Identity & Logo Proportions (Zero-Collision Lockup)
   -------------------------------------------------------------------------- */
/* Fixed-width Icon mark with guaranteed 12px right clearance */
.brand-icon-img {
  width: 40px;
  height: 40px;
  min-width: 40px;
  max-width: 40px;
  object-fit: contain;
  display: block;
  margin-right: 12px;
  flex-shrink: 0;
}

.footer-brand-icon {
  width: 38px;
  height: 38px;
  min-width: 38px;
  max-width: 38px;
  object-fit: contain;
  display: block;
  margin-right: 12px;
  flex-shrink: 0;
}

/* Text Wordmark Typography */
.brand-title {
  letter-spacing: -0.03em;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  line-height: 1.1;
  margin-bottom: 2px;
}

.brand-subtitle {
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1;
}

/* Navigation Links */
.nav-link {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--tf-slate-700) !important;
  padding: 0.5rem 0.85rem !important;
  transition: color 0.15s ease;
}

.nav-link:hover, 
.nav-link.active {
  color: var(--tf-blue-primary) !important;
}

/* --------------------------------------------------------------------------
   Hero Section & Structural Panels
   -------------------------------------------------------------------------- */
.hero-section {
  background: linear-gradient(175deg, var(--tf-navy-950) 0%, var(--tf-navy-900) 45%, var(--tf-navy-800) 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
}

.hero-section::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.4), transparent);
}

/* --------------------------------------------------------------------------
   Cards, Badges & Geometry
   -------------------------------------------------------------------------- */
.card {
  border-radius: var(--tf-radius-md);
  border: 1px solid var(--tf-slate-200);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  background-color: #ffffff;
}

.rounded-4 {
  border-radius: var(--tf-radius-lg) !important;
}

/* --------------------------------------------------------------------------
   Dispatch Terminal Form UX
   -------------------------------------------------------------------------- */
.form-control, 
.form-select {
  border-radius: var(--tf-radius-sm);
  padding: 0.55rem 0.75rem;
  font-size: 0.86rem;
  border: 1px solid var(--tf-slate-300);
  color: var(--tf-slate-900);
  background-color: #ffffff;
}

.form-control:focus, 
.form-select:focus {
  border-color: var(--tf-blue-primary);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.12);
}

.form-label {
  font-size: 0.775rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--tf-slate-600);
  margin-bottom: 0.3rem;
}

.input-group-text {
  border-radius: var(--tf-radius-sm);
  background-color: var(--tf-slate-50);
  border-color: var(--tf-slate-300);
  font-size: 0.85rem;
  color: var(--tf-slate-500);
}

/* Segmented Trip Toggle */
.trip-type-btn-group {
  border: 1px solid var(--tf-slate-200);
  background-color: var(--tf-slate-100);
  padding: 3px;
  border-radius: var(--tf-radius-sm);
}

.trip-type-btn-group .btn {
  font-size: 0.785rem;
  font-weight: 600;
  padding: 0.4rem 0.65rem;
  border-radius: 4px;
  color: var(--tf-slate-600);
  transition: all 0.15s ease;
}

.trip-type-btn-group .btn-check:checked + .btn {
  background-color: #ffffff;
  color: var(--tf-slate-900);
  font-weight: 700;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

/* --------------------------------------------------------------------------
   Buttons & Brand Elements
   -------------------------------------------------------------------------- */
.btn {
  border-radius: var(--tf-radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: all 0.15s ease;
}

.btn-primary {
  background-color: var(--tf-blue-primary);
  border-color: var(--tf-blue-primary);
  color: #ffffff;
}

.btn-primary:hover, 
.btn-primary:focus {
  background-color: var(--tf-blue-hover);
  border-color: var(--tf-blue-hover);
  color: #ffffff;
}

.btn-dark {
  background-color: var(--tf-navy-900);
  border-color: var(--tf-navy-900);
  color: #ffffff;
}

.btn-dark:hover, 
.btn-dark:focus {
  background-color: var(--tf-navy-950);
  border-color: var(--tf-navy-950);
  color: #ffffff;
}

.btn-whatsapp {
  background-color: var(--tf-forest-primary);
  border-color: var(--tf-forest-primary);
  color: #ffffff;
}

.btn-whatsapp:hover, 
.btn-whatsapp:focus {
  background-color: var(--tf-forest-hover);
  border-color: var(--tf-forest-hover);
  color: #ffffff;
}

.text-primary-tf {
  color: var(--tf-blue-accent) !important;
}

/* --------------------------------------------------------------------------
   Section Hierarchy & Typography
   -------------------------------------------------------------------------- */
.section-kicker {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--tf-blue-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.4rem;
}

.section-kicker::before {
  content: "";
  width: 14px;
  height: 2px;
  background-color: var(--tf-blue-primary);
  display: inline-block;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--tf-slate-900);
  letter-spacing: -0.03em;
  line-height: 1.25;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.15rem;
  }
}

/* --------------------------------------------------------------------------
   Feature, Route & Fleet Cards
   -------------------------------------------------------------------------- */
.highlight-card, 
.route-card, 
.vehicle-card {
  border-radius: var(--tf-radius-md);
  border: 1px solid var(--tf-slate-200);
  background-color: #ffffff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.highlight-card:hover, 
.route-card:hover, 
.vehicle-card:hover {
  border-color: var(--tf-slate-300) !important;
  box-shadow: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
  transform: translateY(-2px);
}

.vehicle-img-wrapper {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--tf-slate-100);
  border-bottom: 1px solid var(--tf-slate-200);
}

.vehicle-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.vehicle-card:hover .vehicle-img-wrapper img {
  transform: scale(1.03);
}

/* --------------------------------------------------------------------------
   Regional Network Directory
   -------------------------------------------------------------------------- */
.region-group-card {
  border-radius: var(--tf-radius-md);
  background-color: #ffffff;
  border: 1px solid var(--tf-slate-200);
  padding: 1.15rem;
  height: 100%;
}

.region-city-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.6rem;
  font-size: 0.74rem;
  font-weight: 600;
  border-radius: 4px;
  background-color: var(--tf-slate-50);
  color: var(--tf-slate-700);
  border: 1px solid var(--tf-slate-200);
  text-decoration: none;
  margin: 0.15rem;
  transition: all 0.15s ease;
}

.region-city-badge:hover {
  background-color: var(--tf-navy-900);
  color: #ffffff;
  border-color: var(--tf-navy-900);
}

/* --------------------------------------------------------------------------
   FAQ Native Accordion
   -------------------------------------------------------------------------- */
details.tf-faq-item {
  border: 1px solid var(--tf-slate-200);
  border-radius: var(--tf-radius-sm);
  margin-bottom: 0.5rem;
  background-color: #ffffff;
  overflow: hidden;
  transition: border-color 0.15s ease;
}

details.tf-faq-item[open] {
  border-color: var(--tf-slate-300);
}

summary.tf-faq-summary {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--tf-slate-900);
  background-color: #ffffff;
  padding: 0.95rem 1.15rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

summary.tf-faq-summary::-webkit-details-marker {
  display: none;
}

summary.tf-faq-summary::after {
  content: "+";
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--tf-slate-500);
}

details.tf-faq-item[open] summary.tf-faq-summary {
  background-color: var(--tf-slate-50);
  border-bottom: 1px solid var(--tf-slate-200);
}

details.tf-faq-item[open] summary.tf-faq-summary::after {
  content: "−";
  color: var(--tf-slate-900);
}

.tf-faq-body {
  padding: 1rem 1.15rem;
  font-size: 0.86rem;
  color: var(--tf-slate-600);
  line-height: 1.6;
  background-color: #ffffff;
}

/* --------------------------------------------------------------------------
   Interactive Form Helpers (Chips, Swap & Elevation)
   -------------------------------------------------------------------------- */
.quick-city-chip {
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.18rem 0.5rem;
  border-radius: 4px;
  background-color: var(--tf-slate-100);
  color: var(--tf-slate-700);
  border: 1px solid var(--tf-slate-200);
  cursor: pointer;
  transition: all 0.15s ease;
}

.quick-city-chip:hover {
  background-color: var(--tf-navy-900);
  color: #ffffff;
  border-color: var(--tf-navy-900);
}

.swap-btn {
  background-color: #ffffff;
  border: 1px solid var(--tf-slate-300);
  color: var(--tf-slate-600);
  width: 26px;
  height: 26px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  font-size: 0.75rem;
  transition: all 0.15s ease;
}

.swap-btn:hover {
  background-color: var(--tf-slate-100);
  color: var(--tf-navy-900);
}

.field-highlight {
  animation: pulseField 1s ease;
}

@keyframes pulseField {
  0% { box-shadow: 0 0 0 0 rgba(29, 78, 216, 0.4); border-color: var(--tf-blue-primary); }
  50% { box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.15); border-color: var(--tf-blue-primary); }
  100% { box-shadow: 0 0 0 0 rgba(29, 78, 216, 0); }
}

.back-to-top {
  position: fixed;
  bottom: 75px;
  right: 20px;
  width: 38px;
  height: 38px;
  border-radius: var(--tf-radius-sm);
  background: var(--tf-navy-900);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1030;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--tf-blue-primary);
  color: #ffffff;
}

.mobile-action-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1040;
  background: #ffffff;
  border-top: 1px solid var(--tf-slate-200);
  padding: 0.5rem 0.75rem;
  box-shadow: 0 -4px 12px rgba(15, 23, 42, 0.05);
}

@media (max-width: 767.98px) {
  body {
    padding-bottom: 64px;
  }
}