/* =============================================
   TransConnect Premium UI System
   Covers: design tokens, animations, dark mode,
   scroll effects, components, responsive fixes
   ============================================= */

/* === 1. Extended Design Tokens === */
:root {
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   20px;
  --radius-pill: 999px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg:  0 16px 32px rgba(0,0,0,0.12), 0 8px 16px rgba(0,0,0,0.06);
  --shadow-xl:  0 24px 48px rgba(0,0,0,0.16), 0 12px 24px rgba(0,0,0,0.08);

  --trans-fast:   0.15s ease;
  --trans-base:   0.3s ease;
  --trans-spring: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

/* === 2. Focus Visible (Keyboard Nav) === */
*:focus { outline: none; }
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
.btn:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(22, 163, 74, 0.2);
}

/* === 3. Page Load Progress Bar === */
#tc-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, #16A34A, #22C55E, #16A34A);
  background-size: 200% 100%;
  z-index: 999999;
  pointer-events: none;
  animation: progress-shimmer 1.4s linear infinite;
  transition: width 0.18s ease, opacity 0.4s ease;
}
@keyframes progress-shimmer {
  0%   { background-position: 0% 0%; }
  100% { background-position: 200% 0%; }
}

/* === 4. Navbar Brand Word Spacing === */
.navbar-brand h1 span { margin-left: 0.3em; }

/* === 4b. Glassmorphism Navbar on Scroll === */
.navbar.tc-glass {
  background: rgba(255, 255, 255, 0.88) !important;
  backdrop-filter: blur(14px) saturate(1.6);
  -webkit-backdrop-filter: blur(14px) saturate(1.6);
  box-shadow: 0 2px 20px rgba(0,0,0,0.08) !important;
  transition: background 0.35s ease, box-shadow 0.35s ease;
}

/* === 5. Scroll-Triggered Entrance Animations === */
.tc-animate,
.tc-animate-left,
.tc-animate-right {
  transition-property: opacity, transform;
  transition-duration: 0.65s;
  transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}
.tc-animate        { opacity: 0; transform: translateY(28px); }
.tc-animate-left   { opacity: 0; transform: translateX(-28px); }
.tc-animate-right  { opacity: 0; transform: translateX(28px); }

.tc-animate.visible,
.tc-animate-left.visible,
.tc-animate-right.visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* === 6. Hero — Animated Gradient Background === */
.jumbotron-hero {
  background: linear-gradient(135deg, #0f172a 0%, #14532D 45%, #111827 100%) !important;
  background-size: 300% 300% !important;
  animation: hero-gradient 9s ease infinite;
  position: relative;
  overflow: hidden;
}
@keyframes hero-gradient {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Hero word-by-word animation */
.hero-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(20px);
  animation: hero-word-in 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes hero-word-in {
  to { opacity: 1; transform: translateY(0); }
}

/* Hero CTA group */
.hero-cta-group {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 28px;
}
.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--color-primary);
  color: #fff !important;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none !important;
  transition: all var(--trans-spring);
  box-shadow: 0 8px 24px rgba(22, 163, 74, 0.35);
  position: relative;
  overflow: hidden;
}
.btn-hero-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 14px 36px rgba(22, 163, 74, 0.45);
  color: #fff !important;
}
.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: #fff !important;
  border: 2px solid rgba(255,255,255,0.45);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none !important;
  transition: all var(--trans-base);
}
.btn-hero-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.8);
  color: #fff !important;
}

/* === 7. Stats Counter Section === */
.stats-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, #15803D 100%);
  padding: 72px 0;
}
.stat-item {
  text-align: center;
  padding: 20px 16px;
}
.stat-number {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 900;
  color: #fff !important;
  line-height: 1;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255,255,255,0.82) !important;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

/* === 8. How It Works Cards === */
.how-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--trans-spring), box-shadow var(--trans-spring);
  height: 100%;
}
.how-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow-lg);
}
.how-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  padding: 22px 20px;
  gap: 12px;
}
.how-card__body {
  padding: 18px 20px;
}
.how-card__body p { margin: 0; color: var(--text-muted); font-size: 0.92rem; line-height: 1.6; }

/* === 9. Service Cards === */
.service-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--trans-spring), box-shadow var(--trans-spring);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.service-card__icon-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 24px;
}
.service-card__body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.service-card__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-dark) !important;
}
.service-card__desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  flex: 1;
  margin-bottom: 16px;
}
.service-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  transition: gap var(--trans-base);
}
.service-card__cta:hover { gap: 10px; text-decoration: none; }

/* Service card icon gradient variants */
.service-card--1 .service-card__icon-wrap { background: linear-gradient(135deg, #16A34A, #22C55E); }
.service-card--2 .service-card__icon-wrap { background: linear-gradient(135deg, #0EA5E9, #38BDF8); }
.service-card--3 .service-card__icon-wrap { background: linear-gradient(135deg, #8B5CF6, #A78BFA); }
.service-card--4 .service-card__icon-wrap { background: linear-gradient(135deg, #F59E0B, #FCD34D); }
.service-card--5 .service-card__icon-wrap { background: linear-gradient(135deg, #EF4444, #FCA5A5); }
.service-card--6 .service-card__icon-wrap { background: linear-gradient(135deg, #14532D, #16A34A); }
.service-card--1 .service-card__cta { color: #16A34A; }
.service-card--2 .service-card__cta { color: #0EA5E9; }
.service-card--3 .service-card__cta { color: #8B5CF6; }
.service-card--4 .service-card__cta { color: #D97706; }
.service-card--5 .service-card__cta { color: #DC2626; }
.service-card--6 .service-card__cta { color: #14532D; }

/* === 10. About Ecosystem Cards === */
.ecosystem-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--trans-spring), box-shadow var(--trans-spring);
  height: 100%;
}
.ecosystem-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow-lg);
}
.ecosystem-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 36px;
}
.ecosystem-card--shipper .ecosystem-card__icon { background: linear-gradient(135deg, #16A34A, #22C55E); }
.ecosystem-card--carrier .ecosystem-card__icon { background: linear-gradient(135deg, #0f172a, #14532D); }
.ecosystem-card__body { padding: 28px; }

/* === 11. Button Ripple + Scale === */
.btn-primary, .btn-hero-primary, .nav-track-btn {
  position: relative;
  overflow: hidden;
}
.btn-primary::after, .btn-hero-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.18);
  border-radius: inherit;
  transform: scale(0);
  opacity: 0;
  transition: transform 0.35s ease, opacity 0.35s ease;
  pointer-events: none;
}
.btn-primary:active::after, .btn-hero-primary:active::after {
  transform: scale(1);
  opacity: 1;
  transition: 0s;
}
.btn-primary:active { transform: scale(0.97); }

/* === 12. Back to Top Pulse === */
.back-to-top {
  position: fixed !important;
  right: 30px !important;
  bottom: 30px !important;
  width: 44px !important;
  height: 44px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  border-radius: 50% !important;
  z-index: 9999 !important;
  animation: btt-pulse 2.8s ease-in-out infinite;
}
@keyframes btt-pulse {
  0%, 100% { box-shadow: 0 4px 16px rgba(22, 163, 74, 0.4); }
  50%       { box-shadow: 0 4px 24px rgba(22, 163, 74, 0.7), 0 0 0 8px rgba(22, 163, 74, 0.12); }
}

/* === 13. Dark Mode === */
[data-theme="dark"] body           { background-color: #0f172a !important; color: #f1f5f9 !important; }
[data-theme="dark"] .navbar-light  { background: rgba(15, 23, 42, 0.96) !important; border-bottom: 1px solid rgba(255,255,255,0.07); }
[data-theme="dark"] .navbar-light .navbar-brand        { color: #f1f5f9 !important; }
[data-theme="dark"] .navbar-light .navbar-brand span   { color: #f1f5f9 !important; }
[data-theme="dark"] .navbar-light .navbar-nav .nav-link { color: #cbd5e1 !important; }
[data-theme="dark"] .navbar-light .navbar-nav .nav-link:hover,
[data-theme="dark"] .navbar-light .navbar-nav .nav-link.active { color: var(--color-primary) !important; }
[data-theme="dark"] .navbar-light .navbar-toggler { border-color: #475569; }
[data-theme="dark"] .navbar-light .navbar-toggler-icon { filter: invert(0.8); }
[data-theme="dark"] h1, [data-theme="dark"] h2,
[data-theme="dark"] h3, [data-theme="dark"] h4,
[data-theme="dark"] h5, [data-theme="dark"] h6 { color: #f1f5f9 !important; }
[data-theme="dark"] p   { color: #94a3b8 !important; }
[data-theme="dark"] .bg-secondary { background-color: #1e293b !important; }
[data-theme="dark"] .service-card, [data-theme="dark"] .how-card,
[data-theme="dark"] .ecosystem-card, [data-theme="dark"] .tracking-card {
  background: #1e293b !important; border-color: #334155 !important;
}
[data-theme="dark"] .service-card__desc,
[data-theme="dark"] .how-card__body p { color: #94a3b8 !important; }
[data-theme="dark"] .service-card__title { color: #f1f5f9 !important; }
[data-theme="dark"] input, [data-theme="dark"] textarea, [data-theme="dark"] select {
  background: #1e293b !important; color: #f1f5f9 !important; border-color: #475569 !important;
}
[data-theme="dark"] .contact-form { background: #1e293b !important; border-color: #334155 !important; }
[data-theme="dark"] .contact-form label { color: #e2e8f0 !important; }
[data-theme="dark"] .navbar.tc-glass {
  background: rgba(15, 23, 42, 0.92) !important;
}

.tc-dark-toggle {
  background: none;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-pill);
  padding: 5px 12px;
  cursor: pointer;
  font-size: 1rem;
  transition: all var(--trans-base);
  margin-left: 12px;
  color: var(--text-dark);
  line-height: 1;
}
.tc-dark-toggle:hover { border-color: var(--color-primary); }

/* === 14. Toast Notifications === */
#tc-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}
.tc-toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-lg);
  font-size: 0.875rem;
  font-weight: 500;
  min-width: 280px;
  max-width: 380px;
  pointer-events: auto;
  animation: toast-in 0.38s cubic-bezier(0.16,1,0.3,1) both;
  border-left: 4px solid transparent;
}
.tc-toast--success { border-left-color: #16A34A; color: #15803D; background: #f0fdf4; }
.tc-toast--error   { border-left-color: #EF4444; color: #b91c1c; background: #fef2f2; }
.tc-toast--info    { border-left-color: #0EA5E9; color: #0369a1; background: #f0f9ff; }
.tc-toast__icon { font-size: 1rem; flex-shrink: 0; }
.tc-toast__msg  { flex: 1; }
.tc-toast__close {
  background: none; border: none; cursor: pointer;
  opacity: 0.5; padding: 0; font-size: 1.1rem;
  color: currentColor; flex-shrink: 0; line-height: 1;
}
.tc-toast__close:hover { opacity: 1; }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(14px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* === 15. Order Tracking — Map Placeholder === */
.map-wrapper { position: relative; }
#map-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f0fdf4 0%, #f8fafc 100%);
  border-radius: var(--radius-lg);
  z-index: 999;
  transition: opacity 0.45s ease;
  pointer-events: none;
}
#map-placeholder.hidden { opacity: 0; }
.map-placeholder__icon  { font-size: 3.2rem; color: var(--color-primary); margin-bottom: 16px; opacity: 0.55; }
.map-placeholder__title { font-size: 1.2rem; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.map-placeholder__sub   { font-size: 0.9rem; color: var(--text-muted); text-align: center; max-width: 260px; }

/* === 16. Order Tracking — Success Banner === */
#tracking-success {
  margin-top: 14px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(22, 163, 74, 0.25);
  background: rgba(22, 163, 74, 0.06);
  color: #15803D;
  font-weight: 600;
  font-size: 0.9rem;
  display: none;
  align-items: center;
  gap: 10px;
  animation: toast-in 0.38s cubic-bezier(0.16,1,0.3,1) both;
}

/* === 17. Order Tracking — Spinner in Button === */
.tc-spinner {
  display: inline-block;
  width: 15px;
  height: 15px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: tc-spin 0.7s linear infinite;
  vertical-align: middle;
  margin-right: 7px;
}
@keyframes tc-spin { to { transform: rotate(360deg); } }

/* === 18. Order Tracking — Marker Animations === */
.tracking-pin-icon {
  position: relative;
  animation: pin-pop 0.55s cubic-bezier(0.16,1,0.3,1) both;
}
.tracking-vehicle-icon {
  position: relative;
  animation: vehicle-pop 0.55s cubic-bezier(0.16,1,0.3,1) both;
}
@keyframes pin-pop {
  0%   { opacity: 0; transform: scale(0.3) rotate(-45deg) translateY(-8px); }
  100% { opacity: 1; transform: scale(1) rotate(-45deg); }
}
@keyframes vehicle-pop {
  0%   { opacity: 0; transform: scale(0.3); }
  100% { opacity: 1; transform: scale(1); }
}
.tracking-vehicle-icon::after {
  content: '';
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  border: 2px solid #FACC15;
  animation: vehicle-pulse 2.2s ease-out infinite;
  opacity: 0;
}
@keyframes vehicle-pulse {
  0%   { transform: scale(0.85); opacity: 0.75; }
  100% { transform: scale(1.7); opacity: 0; }
}

/* === 19. Contact Form === */
.contact-form {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}
.contact-form label {
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
  display: block;
}
.contact-form .form-control {
  border-radius: var(--radius-md) !important;
  padding: 12px 16px;
  font-size: 0.95rem;
}
.contact-form textarea.form-control { min-height: 130px; resize: vertical; }
.btn-cf-submit {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.4px;
  border-radius: var(--radius-md) !important;
}

/* === 20. Nav Active Underline Animation === */
.navbar-nav .nav-link.active {
  border-bottom: none !important;
  position: relative;
}
.navbar-nav .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 15px;
  right: 15px;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-pill);
  animation: nav-ul-grow 0.35s cubic-bezier(0.16,1,0.3,1) both;
}
@keyframes nav-ul-grow {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

/* === 21. Mobile Responsive Fixes === */
@media (max-width: 768px) {
  #order-tracking-map {
    height: min(70vh, 400px) !important;
    min-height: 300px !important;
  }
  .hero-cta-group { flex-direction: column; align-items: center; }
  .btn-hero-primary, .btn-hero-secondary {
    width: 100%; max-width: 280px; justify-content: center;
  }
  .contact-form { padding: 24px; }
  .stats-section { padding: 48px 0; }
}

/* === 22. Display-3 smooth font clamp === */
.display-3 {
  font-size: clamp(1.8rem, 6vw, 3.5rem) !important;
  line-height: 1.2;
}

/* === 23. Service card gutter on tablet === */
@media (min-width: 768px) and (max-width: 991px) {
  .service-card { margin-bottom: 4px; }
  .col-md-6 { padding-left: 16px !important; padding-right: 16px !important; }
}

/* === 24. Feature section image rounding === */
.feature-section .img-fluid { border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.feature-section .bg-primary.text-dark { border-radius: 0 0 var(--radius-lg) var(--radius-lg); }

/* === 25. Section breadcrumb semantic === */
.breadcrumb-nav .fa-circle { font-size: 6px; vertical-align: middle; }