/* Reset and basic styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Roboto', sans-serif;
}

body {
  line-height: 1.6;
  color: #333;
}

/* Header & Hero */
header {
  background: url('images/hero.jpg') no-repeat center center/cover;
  height: 100vh;
  color: white;
  text-align: center;
  position: relative;
}

.hero {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.hero .btn {
  background: #ff6b6b;
  color: white;
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.3s;
}

.hero .btn:hover {
  background: #ff4757;
}

/* Navigation */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5%;
  background: rgba(0,0,0,0.5);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: background 0.3s, color 0.3s;
}

/* Smooth transition for header elements */
nav, nav .logo, nav .nav-links a, nav .header-btn {
  transition: color 0.3s, background-color 0.3s;
}

/* Black header style when nav-black is applied */
nav.nav-black {
  background-color: #fff;
}

nav.nav-black .logo,
nav.nav-black .nav-links a {
  color: #000;
}

nav.nav-black .header-btn {
  background-color: #000;
  color: #fff;
}

nav.nav-black .header-btn:hover {
  background-color: #333;
}

/* Smooth transition for header colors */
nav, nav .logo, nav .nav-links a, nav .btn {
  transition: color 0.3s, background-color 0.3s;
}

nav.nav-black {
  background: #fff;
}

nav.nav-black, 
nav.nav-black .logo,
nav.nav-black .nav-links a,
nav.nav-black .header-btn {
  transition: color 0.3s, background-color 0.3s;
}

nav .logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: white;
  transition: color 0.3s;
}

nav.nav-black .logo {
  color: #000;
}

nav .nav-links {
  list-style: none;
  display: flex;
}

nav .nav-links li {
  margin-left: 2rem;
}

nav .nav-links a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

nav.nav-black .nav-links a {
  color: #000;
}

.btn {
  background: #ff6b6b;
  color: white;
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 25px;
  text-decoration: none;
  transition: 0.3s;
  font-weight: 600;
}

.btn:hover {
  background: #ff4757;
}

nav.nav-black .btn {
  background: #000;
}

nav.nav-black .btn:hover {
  background: #333;
}

/* Small Book Now button in header */
nav .header-btn {
  padding: 0.35rem 0.8rem;
  font-size: 0.85rem;
  border-radius: 20px;
  transition: color 0.3s, background-color 0.3s;
}

/* Hamburger menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background: white;
  border-radius: 2px;
  transition: background 0.3s;
}

nav.nav-black .menu-toggle span {
  background: #000;
}

/* Sections */
section {
  padding: 5rem 10%;
  text-align: center;
}

.cards, .packages {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.card, .package {
  background: #f7f7f7;
  padding: 1rem;
  border-radius: 10px;
  width: 300px;
}

.card img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 1rem;
}

/* Footer */
footer {
  background: #333;
  color: white;
  padding: 1rem;
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  nav .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    flex-direction: column;
    background: rgba(0,0,0,0.95);
    display: none;
    padding: 1rem 0;
    text-align: center;
  }

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

  nav .nav-links li {
    margin: 1rem 0;
  }

  .menu-toggle {
    display: flex;
  }

  nav.nav-black .nav-links {
    background: #fff;
  }

  nav.nav-black .nav-links a {
    color: #000;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }
}