/*
  ETCP Main Stylesheet
  - Earthy color palette
  - Responsive, clean, eco-friendly UI
  - Google Fonts: Poppins
  - v2/v3: Sticky nav, nav icons, progress bar, eco impact, tips
*/

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap');

:root {
  --green: #3b7a57;
  --brown: #8d6748;
  --light-bg: #f4f3ee;
  --dark: #222;
  --shadow: 0 2px 8px rgba(60, 60, 60, 0.08);
  --radius: 1.1rem;
}

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

body {
  font-family: 'Poppins', Arial, sans-serif;
  background: var(--light-bg);
  color: var(--dark);
  min-height: 100vh;
  line-height: 1.6;
}

header {
  background: var(--green);
  color: #fff;
  padding: 1.2rem 0;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
  /* v2: sticky nav */
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
}

.logo {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: #fff;
  text-decoration: none;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.2s, background 0.2s;
  padding: 0.3rem 0.7rem;
  border-radius: 0.7rem;
}

nav a:hover, nav a:focus {
  color: var(--brown);
  background: rgba(141, 103, 72, 0.13);
}

/* v3: nav icon style */
.nav-icon {
  font-size: 1.2em;
  vertical-align: middle;
}

.hero {
  background: url('https://images.unsplash.com/photo-1506744038136-46273834b3fb?auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
  min-height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero-overlay {
  background: rgba(59, 122, 87, 0.45);
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border-radius: var(--radius);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
  text-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.search-bar {
  display: flex;
  justify-content: center;
  margin-top: 1.2rem;
}

.search-bar input[type="text"] {
  padding: 0.8rem 1.2rem;
  border: none;
  border-radius: var(--radius) 0 0 var(--radius);
  font-size: 1.1rem;
  width: 260px;
}

.search-bar button {
  padding: 0.8rem 1.5rem;
  border: none;
  background: var(--brown);
  color: #fff;
  font-size: 1.1rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  cursor: pointer;
  transition: background 0.2s;
}

.search-bar button:hover {
  background: #a97c50;
}

.features {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  margin: 2.5rem 0;
  flex-wrap: wrap;
}

.feature {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem 2rem;
  min-width: 220px;
  text-align: center;
  color: var(--green);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

footer {
  background: var(--brown);
  color: #fff;
  text-align: center;
  padding: 1.2rem 0;
  margin-top: 2rem;
  border-radius: var(--radius) var(--radius) 0 0;
}

footer a {
  color: #fff;
  margin: 0 1rem;
  text-decoration: underline;
  font-size: 1rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 2rem;
  background: var(--brown);
  border-radius: var(--radius) var(--radius) 0 0;
  box-shadow: var(--shadow);
  gap: 1.5rem;
}
.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 2px;
}
.footer-nav {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer-nav a {
  color: #fff;
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.2s, background 0.2s;
  padding: 0.3rem 0.7rem;
  border-radius: 0.7rem;
}
.footer-nav a:hover, .footer-nav a:focus {
  color: var(--brown);
  background: #fff2e0;
}
.footer-copy {
  color: #fff;
  font-size: 1rem;
  margin-left: auto;
}

/* Discovery Hub */
.filters {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  align-items: center;
  margin: 2rem 0 1.5rem 0;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filter-group label {
  font-weight: 500;
  color: var(--brown);
}

.filter-group select {
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  border: 1px solid #ccc;
  font-size: 1rem;
}

.filter-icons {
  display: flex;
  gap: 0.7rem;
}

.filter-icon {
  background: var(--green);
  color: #fff;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.filter-icon:hover, .filter-icon.active {
  background: var(--brown);
  transform: scale(1.08);
}

.experiences-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto 2.5rem auto;
}

.experience-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.18s, box-shadow 0.18s;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  min-height: 340px;
}

.experience-card:hover {
  transform: translateY(-6px) scale(1.03);
  box-shadow: 0 6px 24px rgba(60,60,60,0.13);
}

.experience-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.card-content {
  padding: 1.2rem 1.2rem 1rem 1.2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--green);
  margin-bottom: 0.5rem;
}

.card-rating {
  color: #f4b400;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.card-desc {
  color: var(--brown);
  font-size: 1rem;
  flex: 1;
}

.card-link {
  margin-top: 1rem;
  text-align: right;
}

.card-link a {
  color: var(--green);
  font-weight: 600;
  text-decoration: underline;
  font-size: 1rem;
}

.card-link a:hover {
  color: var(--brown);
}

/* Experience Details */
.details-banner {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
}

.details-content {
  max-width: 900px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
}

.details-title {
  font-size: 2rem;
  color: var(--green);
  font-weight: 600;
  margin-bottom: 0.7rem;
}

.badges {
  display: flex;
  gap: 0.7rem;
  margin-bottom: 1.2rem;
}

.badge {
  background: var(--green);
  color: #fff;
  border-radius: 1rem;
  padding: 0.3rem 1rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.reviews {
  margin: 2rem 0 1.5rem 0;
}

.review {
  background: var(--light-bg);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  margin-bottom: 1rem;
  color: var(--brown);
}

.book-btn {
  display: inline-block;
  background: var(--brown);
  color: #fff;
  padding: 0.9rem 2.2rem;
  border: none;
  border-radius: var(--radius);
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 1.2rem;
  transition: background 0.2s, transform 0.2s;
  box-shadow: var(--shadow);
}

.book-btn:hover {
  background: #a97c50;
  transform: scale(1.04);
}

/* Booking Page */
.booking-form {
  max-width: 520px;
  margin: 2.5rem auto;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2.5rem 2.5rem 2rem 2.5rem;
}
.form-fieldset {
  border: 1px solid #e0e0d1;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  padding: 1.2rem 1.5rem;
}
.form-fieldset legend {
  color: var(--green);
  font-weight: 600;
  font-size: 1.1rem;
  padding: 0 0.5rem;
}
.booking-form label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--green);
  font-weight: 500;
  font-size: 1.1rem;
}
.booking-form input, .booking-form select {
  width: 100%;
  padding: 1rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid #ccc;
  margin-bottom: 1.2rem;
  font-size: 1.15rem;
}
.booking-form .form-buttons {
  display: flex;
  gap: 1.2rem;
  margin-top: 1.2rem;
  justify-content: flex-end;
}
.booking-form button {
  width: auto;
  background: var(--green);
  color: #fff;
  padding: 1rem 2.2rem;
  border: none;
  border-radius: var(--radius);
  font-size: 1.15rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.booking-form button:hover {
  background: var(--brown);
}

/* Booking Progress Bar */
.progress-bar {
  width: 100%;
  background: #e0e0d1;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  height: 1.1rem;
  overflow: hidden;
}
.progress-bar-inner {
  background: var(--green);
  height: 100%;
  width: 0%;
  transition: width 0.4s;
}
.progress-label {
  text-align: right;
  color: var(--brown);
  font-size: 1rem;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

/* Eco Impact Section */
.eco-impact-section {
  background: #eaf7ef;
  color: var(--green);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  margin: 1.5rem 0 1.5rem 0;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.1rem;
  font-weight: 500;
  box-shadow: var(--shadow);
}
.eco-impact-leaf {
  font-size: 1.5em;
  margin-right: 0.5rem;
}

/* Planner Tips */
.planner-tips {
  margin-top: 2rem;
  background: #f4f3ee;
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  color: var(--green);
  font-size: 1.05rem;
  box-shadow: var(--shadow);
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  flex-wrap: wrap;
}
.tip-icon {
  font-size: 1.3em;
  margin-right: 0.5rem;
}

/* Responsive */
@media (max-width: 900px) {
  .header-container, .details-content, .planner-container {
    padding: 0 1rem;
  }
  .features {
    gap: 1.2rem;
  }
}

@media (max-width: 600px) {
  .header-container {
    flex-direction: column;
    gap: 1rem;
    padding: 0 0.5rem;
  }
  .features {
    flex-direction: column;
    align-items: center;
  }
  .details-content, .planner-container, .booking-form {
    padding: 1rem;
  }
  .experiences-grid {
    gap: 1rem;
  }
}