/* ===== Basic setup ===== */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Verdana, Arial, sans-serif;
  background: #fdf6ec;
  color: #2b2b2b;
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ===== Header & Nav ===== */
header {
  background: linear-gradient(135deg, #ff6b6b, #ffd93d);
  padding: 30px 20px;
  text-align: center;
  color: white;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
}

header h1 {
  margin: 0;
  font-size: 2.5rem;
}

header p {
  margin: 5px 0 0;
  font-size: 1.1rem;
}

nav {
  background: #2b2b2b;
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 10px;
}

nav a {
  color: white;
  padding: 10px 20px;
  border-radius: 20px;
  font-weight: bold;
  transition: background 0.2s ease, transform 0.2s ease;
}

nav a:hover,
nav a.active {
  background: #ffd93d;
  color: #2b2b2b;
  transform: scale(1.05);
}

/* ===== Main content ===== */
main {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

.intro {
  text-align: center;
  margin-bottom: 40px;
}

.intro h2 {
  font-size: 2rem;
  color: #ff6b6b;
}

/* ===== Cards grid ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 25px;
}

.card {
  background: white;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
  border-top: 6px solid #4ecdc4;
  transition: transform 0.2s ease;
}

.card:hover {
  transform: translateY(-6px);
}

.card.trip {
  border-top-color: #ff9f45;
}

.card h3 {
  margin-top: 0;
  color: #2b2b2b;
}

.card .tag {
  display: inline-block;
  background: #4ecdc4;
  color: white;
  font-size: 0.8rem;
  padding: 3px 10px;
  border-radius: 12px;
  margin-bottom: 10px;
}

.card.trip .tag {
  background: #ff9f45;
}

/* Link/button style used on home page cards */
.home-link {
  display: block;
  text-align: center;
  padding: 40px 20px;
  border-radius: 16px;
  color: white;
  font-size: 1.4rem;
  font-weight: bold;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  transition: transform 0.2s ease;
}

.home-link:hover {
  transform: translateY(-6px);
}

.home-link.school {
  background: linear-gradient(135deg, #4ecdc4, #556270);
}

.home-link.trips {
  background: linear-gradient(135deg, #ff9f45, #ff6b6b);
}

.home-link span {
  display: block;
  font-size: 2.5rem;
  margin-bottom: 10px;
}

/* ===== Footer ===== */
footer {
  text-align: center;
  padding: 20px;
  color: #888;
  font-size: 0.9rem;
}