:root {
  /* Color Palette */
  --primary: #006B3C;
  --secondary: #009688;
  --accent: #F4A300;
  --bg-color: #F5F7FA;
  --text-color: #222222;
  --white: #FFFFFF;
  --light-gray: #E0E0E0;
  
  /* Typography */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Spacing */
  --container-width: 1200px;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  
  /* Shadows */
  --shadow-card: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-hover: 0 10px 15px rgba(0,0,0,0.15);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 1rem;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s ease;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
  border-radius: 8px;
}

/* Utility Classes */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 50px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
}

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

.btn-primary:hover {
  background-color: #00502c;
  transform: translateY(-2px);
}

.btn-accent {
  background-color: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background-color: #d68f00;
  transform: translateY(-2px);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  font-size: 2.5rem;
  color: var(--primary);
  position: relative;
  padding-bottom: 1rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background-color: var(--accent);
  border-radius: 2px;
}

/* Navigation */
.navbar {
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-color);
  position: relative;
}

.nav-links a.active,
.nav-links a:hover {
  color: var(--primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--accent);
  transition: width 0.3s;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--primary);
}

/* Hero Section */
.hero {
  height: 80vh;
  min-height: 500px;
  background-image: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)), url('images/hero.jpg');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  padding: 0 1rem;
}

.hero-content h1 {
  font-size: 3.5rem;
  color: var(--white);
  margin-bottom: 1rem;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto 2rem;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

/* Highlights Strip */
.highlights-strip {
  background-color: var(--white);
  padding: var(--spacing-md) 0;
  margin-top: -3rem;
  position: relative;
  z-index: 10;
  border-radius: 8px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.highlight-item {
  text-align: center;
  padding: 1rem;
  border-right: 1px solid var(--light-gray);
}

.highlight-item:last-child {
  border-right: none;
}

.highlight-item i {
  font-size: 2rem;
  color: var(--secondary);
  margin-bottom: 0.5rem;
}

.highlight-item h4 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

/* Grid Layouts */
.grid-section {
  padding: var(--spacing-lg) 0;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.card-img {
  height: 200px;
  width: 100%;
  object-fit: cover;
}

.card-content {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.card-tag {
  display: inline-block;
  padding: 4px 12px;
  background-color: rgba(0, 150, 136, 0.1);
  color: var(--secondary);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  width: fit-content;
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.card p {
  color: #555;
  font-size: 0.95rem;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.card-footer {
  border-top: 1px solid #eee;
  padding-top: 1rem;
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: #777;
}

/* Intro Section */
.intro-section {
  padding: var(--spacing-lg) 0;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.intro-section p {
  font-size: 1.1rem;
  color: #444;
}

/* Experience Themes */
.theme-section {
  padding: var(--spacing-lg) 0;
  background-color: var(--white);
}

.theme-section:nth-child(even) {
  background-color: var(--bg-color);
}

/* Practical Info Cards */
.info-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  margin-bottom: 1rem;
}

.info-icon {
  color: var(--accent);
  font-size: 2rem;
  margin-bottom: 1rem;
}

/* Itineraries */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 3px;
  background: var(--secondary);
}

.timeline-item {
  position: relative;
  padding-left: 50px;
  margin-bottom: 2rem;
}

.timeline-dot {
  position: absolute;
  left: 11px;
  top: 5px;
  width: 20px;
  height: 20px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid var(--white);
}

.timeline-time {
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 0.25rem;
  display: block;
}

/* Contact Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding: var(--spacing-lg) 0;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 107, 60, 0.1);
}

/* Footer */
footer {
  background-color: #1a1a1a;
  color: #aaa;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-col h4 {
  color: var(--white);
  margin-bottom: 1.5rem;
}

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a:hover {
  color: var(--accent);
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.3s;
}

.social-links a:hover {
  background: var(--accent);
  color: var(--white);
}

.copyright {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    text-align: center;
    gap: 1rem;
  }

  .nav-links.active {
    display: flex;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .highlights-strip {
    grid-template-columns: 1fr 1fr;
  }
  
  .highlight-item:nth-child(2) {
    border-right: none;
  }
}