:root {
    --primary: #3b82f6;
    --dark: #1e293b;
    --light: #f8fafc;
    --glass: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(255, 255, 255, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background-color: var(--light);
}

/* --- Navbar --- */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 8%;
    position: absolute;
    width: 100%;
    z-index: 10;
    color: white;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

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

.menu-btn { display: none; font-size: 24px; cursor: pointer; }

/* --- Hero Section --- */
.hero {
    height: 100vh; /* Full screen height */
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('https://images.unsplash.com/photo-1469854523086-cc02fe5d8800?ixlib=rb-4.0.3&auto=format&fit=crop&w=1500&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0 20px;
    text-align: center;
}

.hero-content h1 {
    font-size: 48px;
    color: white;
    margin-bottom: 10px;
}

.hero-content p {
    color: #e2e8f0;
    font-size: 18px;
    margin-bottom: 40px;
}

.highlight { color: var(--primary); }

/* --- Booking Container (Glassmorphism) --- */
.booking-container {
    background: var(--glass);
    padding: 30px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    width: 100%;
    max-width: 1100px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.tabs {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.tab-btn {
    background: none;
    border: none;
    font-size: 16px;
    font-weight: 600;
    padding-bottom: 5px;
    cursor: pointer;
    color: #64748b;
    border-bottom: 3px solid transparent;
}

.tab-btn.active {
    color: var(--primary);
    border-color: var(--primary);
}

.booking-form {
    display: none; /* Hidden by default */
    grid-template-columns: repeat(4, 1fr) auto; /* 5 columns desktop */
    gap: 15px;
    align-items: center;
}

.booking-form.active-form { display: grid; }

.input-group {
    background: white;
    padding: 10px 15px;
    border-radius: 10px;
    position: relative;
    border: 1px solid #e2e8f0;
}

.input-group label {
    display: block;
    font-size: 12px;
    color: #64748b;
    margin-bottom: 2px;
}

.input-group input, .input-group select {
    width: 100%;
    border: none;
    outline: none;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    background: transparent;
}

.icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
    opacity: 0.5;
}

.btn-search {
    background: var(--primary);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    height: 100%;
    transition: 0.3s;
}

.btn-search:hover { background: #2563eb; }

/* --- Destinations Section --- */
.destinations {
    padding: 80px 8%;
}

.destinations h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 32px;
    color: var(--dark);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: 0.3s;
}

.card:hover { transform: translateY(-10px); }

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

.card-info { padding: 20px; }

.card-info h3 { font-size: 18px; margin-bottom: 5px; }
.card-info p { color: #64748b; font-size: 14px; }

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
}

.price {
    color: var(--primary);
    font-weight: 700;
    font-size: 18px;
}

/* =========================================
   MOBILE RESPONSIVENESS
========================================= */
@media (max-width: 768px) {
    /* Stack Navbar */
    nav { padding: 20px; }
    .nav-links { display: none; } /* Hide links for simplicity, or use JS to toggle */
    .menu-btn { display: block; }

    /* Adjust Hero Text */
    .hero-content h1 { font-size: 32px; }
    
    /* Stack Booking Form */
    .booking-form {
        grid-template-columns: 1fr; /* Stack vertically */
    }
    
    .btn-search {
        width: 100%;
        padding: 15px;
    }
    
    .booking-container {
        padding: 20px;
    }
}