/* ===================================
   TransOK Transportes - Main Stylesheet
   =================================== */

/* CSS Variables */
:root {
  /* Colors */
  --primary-dark: #1e3a5f;
  --primary-darker: #0d2847;
  --primary-medium: #2b5797;
  --accent-red: #e63946;
  --accent-red-dark: #d62828;
  --accent-green: #20c997;
  --accent-blue: #17a2b8;
  --white: #ffffff;
  --light-gray: #f8f9fa;
  --text-gray: #6c757d;
  --dark-gray: #343a40;
  
  /* Typography */
  --font-primary: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Montserrat', 'Poppins', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  color: var(--dark-gray);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-dark);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-gray);
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-sm);
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--white);
  box-shadow: var(--shadow-md);
  z-index: 1000;
  transition: var(--transition-normal);
}

.header.scrolled {
  box-shadow: var(--shadow-lg);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.logo-img {
  height: 50px;
  width: auto;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--primary-dark);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-red);
  background: var(--light-gray);
}

/* Dropdown Menu */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm);
  min-width: 250px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition-normal);
  z-index: 100;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: var(--spacing-xs) var(--spacing-sm);
  color: var(--primary-dark);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--light-gray);
  color: var(--accent-red);
}

.dropdown-menu li {
  list-style: none;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--primary-dark);
  border-radius: 2px;
  transition: var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-darker) 0%, var(--primary-dark) 100%);
  color: var(--white);
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-sm);
  margin-top: 70px;
  overflow: hidden;
}

.hero .container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../images/(63).jpg') center 20%/cover no-repeat;
  opacity: 0.2;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-title {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.8s ease;
}


.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.5rem);
  color: var(--light-gray);
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-tagline {
  font-size: clamp(0.9rem, 1.5vw, 1.2rem);
  color: var(--accent-green);
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 0.8s ease 0.4s backwards;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-normal);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--accent-red);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--accent-red-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}

.btn-secondary:hover {
  background: var(--white);
  color: var(--primary-dark);
}

.btn-outline {
  background: transparent;
  color: var(--primary-dark);
  border-color: var(--primary-dark);
}

.btn-outline:hover {
  background: var(--primary-dark);
  color: var(--white);
}

/* Section Styles */
.section {
  padding: var(--spacing-xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--accent-red-dark);
  margin: var(--spacing-sm) auto 0;
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
  color: var(--text-gray);
}

/* Extra spacing for Segments section to prevent hover overlap */
.segments .section-subtitle {
  margin-bottom: var(--spacing-lg);
  /* avoid any accidental overlay on the carousel area */
  pointer-events: none;
}

.segments .carousel {
  margin-top: var(--spacing-lg);
}

/* Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

/* About section: force 4 columns on desktop */
.cards-grid--about {
  grid-template-columns: repeat(4, 1fr);
}

/* Dark blue icons for About section */
.cards-grid--about .card-icon {
  background: linear-gradient(135deg, var(--accent-blue), var(--primary-darker));
}

@media (max-width: 992px) {
  .cards-grid--about {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .cards-grid--about {
    grid-template-columns: 1fr;
  }
}

/* Horizontal Carousel */
.carousel {
  position: relative;
  margin-top: var(--spacing-lg);
  z-index: 1;
}

.carousel-track {
  display: flex;
  gap: var(--spacing-md);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 6px 0 10px 0; /* small top padding so hover lift is not clipped */
  position: relative;
  z-index: 1 !important;
}

.carousel.segments {
  max-width: calc(300px * 3 + var(--spacing-md) * 2 + 84px);
  margin: 0 auto;
  overflow: visible !important;
  position: relative !important;
  z-index: 1;
  padding: 0 60px 50px 60px;
}

.carousel.segments .carousel-track {
  width: 100%;
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  scroll-behavior: smooth;
  display: flex;
  gap: var(--spacing-md);
  transition: scroll-left 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel.segments .carousel-track::-webkit-scrollbar {
  display: none;
}

@media (max-width: 992px) {
  .carousel.segments .carousel-track {
    max-width: calc(300px * 2 + var(--spacing-md) * 1);
  }
  
  .carousel.segments {
    max-width: calc(300px * 2 + var(--spacing-md) * 1 + 84px);
  }
}

@media (max-width: 768px) {
  .carousel.segments .carousel-track {
    max-width: 100%;
    overflow-x: auto;
  }
  
  .carousel.segments {
    max-width: 100%;
  }
}

.carousel-track::-webkit-scrollbar {
  display: none;
}

.carousel .card {
  flex: 0 0 300px;
  scroll-snap-align: start;
  padding: var(--spacing-sm);
  position: relative;
  z-index: 1 !important;
  pointer-events: auto;
  background: var(--white);
}

.carousel-btn {
  position: absolute !important;
  top: 50% !important;
  transform: translateY(-50%) translateZ(0) !important;
  background: var(--primary-dark) !important;
  color: var(--white) !important;
  border: none !important;
  width: 42px !important;
  height: 42px !important;
  border-radius: 50% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  cursor: pointer !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3) !important;
  z-index: 10002 !important;
  opacity: 1 !important;
  pointer-events: auto !important;
  font-size: 1.5rem !important;
  font-weight: bold !important;
  transition: all 0.3s ease !important;
}

.carousel-btn:hover {
  background: var(--accent-red) !important;
  z-index: 10002 !important;
}

.carousel-btn-prev { 
  left: 0 !important; 
}
.carousel-btn-next { 
  right: 0 !important; 
}

.carousel.segments .carousel-btn-prev {
  left: 0 !important;
  z-index: 10002 !important;
}

.carousel.segments .carousel-btn-next {
  right: 0 !important;
  z-index: 10002 !important;
}

/* Carousel Indicators (bolinhas de navegação) */
.carousel-indicators {
  display: flex !important;
  justify-content: center;
  gap: 8px;
  margin-top: var(--spacing-md);
  position: absolute !important;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%) translateZ(0);
  z-index: 10000 !important;
  pointer-events: auto !important;
  width: 100%;
}

.carousel-indicator {
  width: 12px !important;
  height: 12px !important;
  border-radius: 50%;
  background: rgba(30, 58, 95, 0.3) !important;
  border: 2px solid var(--primary-dark) !important;
  cursor: pointer !important;
  transition: var(--transition-fast);
  pointer-events: auto !important;
  position: relative !important;
  z-index: 10001 !important;
  transform: translateZ(0);
  display: block !important;
  flex-shrink: 0;
}

.carousel-indicator:hover {
  background: rgba(30, 58, 95, 0.5) !important;
  transform: translateZ(0) scale(1.2);
}

.carousel-indicator.active {
  background: var(--accent-red) !important;
  border-color: var(--accent-red) !important;
  transform: translateZ(0) scale(1.3);
}

@media (max-width: 768px) {
  .carousel-btn-prev { left: 5px; }
  .carousel-btn-next { right: 5px; }
}

@media (max-width: 480px) {
  .carousel .card {
    flex-basis: 75%;
  }
}

@media (min-width: 992px) {
  .carousel .card {
    flex-basis: 320px;
  }
}

/* Slightly smaller visuals inside carousel cards */
.carousel .card .card-icon {
  width: 48px;
  height: 48px;
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.carousel .card .card-title {
  font-size: 1.1rem;
}

.carousel .card .card-text {
  font-size: 0.95rem;
}

.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  border: 1px solid transparent;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-red-dark);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
  color: var(--white);
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-dark);
}

.card-text {
  color: var(--text-gray);
  line-height: 1.6;
}

/* Features List */
.features-list {
  list-style: none;
  margin-top: var(--spacing-md);
}

.features-list li {
  padding: var(--spacing-xs) 0;
  padding-left: var(--spacing-md);
  position: relative;
  color: var(--text-gray);
}

.features-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-green);
  font-weight: bold;
}

/* Footer */
.footer {
  background: var(--primary-darker);
  color: var(--light-gray);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
  color: var(--white);
  margin-bottom: var(--spacing-sm);
}

.footer-section p,
.footer-section a {
  color: var(--light-gray);
  margin-bottom: var(--spacing-xs);
}

.footer-section a:hover {
  color: var(--accent-red-dark);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-gray);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.fade-in {
  animation: fadeIn 0.6s ease;
}

.fade-in-up {
  animation: fadeInUp 0.8s ease;
}

/* Certifications Image Styles */
.certification-image {
  width: 350px;
  height: 480px;
  background: white;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  position: relative;
}

.certification-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.3s ease;
}

.certification-image:hover img {
  transform: scale(1.05);
}

/* Responsive adjustments for certification image */
@media (max-width: 768px) {
  .certification-image {
    width: 280px;
    height: 380px;
  }
}

@media (max-width: 480px) {
  .certification-image {
    width: 220px;
    height: 300px;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.text-primary {
  color: var(--primary-dark);
}

.text-accent {
  color: var(--accent-red);
}

.bg-light {
  background: var(--light-gray);
}

.bg-primary {
  background: var(--primary-dark);
  color: var(--white);
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    overflow-y: auto;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    padding-left: var(--spacing-sm);
    display: none;
  }
  
  .dropdown.active .dropdown-menu {
    display: block;
  }
  
  .hero {
    min-height: 50vh;
    padding: var(--spacing-lg) var(--spacing-sm);
  }
  
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }
  
  .container {
    padding: 0 var(--spacing-xs);
  }
}