:root {
    --primary-blue: #0A2540;
    --secondary-blue: #0077B6;
    --accent-cyan: #00B4D8;
    --primary-green: #2A9D8F;
    --light-bg: #F0F8FF;
    --white: #FFFFFF;
    --text-dark: #333333;
    --text-light: #E0E0E0;
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.3);
}

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

body {
    font-family: 'Outfit', sans-serif;
    color: var(--text-dark);
    background-color: var(--light-bg);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* Typography */
h1, h2, h3 {
    color: var(--primary-blue);
    font-weight: 800;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: linear-gradient(to right, var(--primary-blue), var(--primary-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background: var(--primary-blue);
    color: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
}

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

nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

nav a:hover {
    color: var(--accent-cyan);
}

/* Hero Section */
.hero {
    height: 90vh;
    background: linear-gradient(to bottom, rgba(10, 37, 64, 0.4), rgba(42, 157, 143, 0.6)), url('assets/images/hero_cruise_1790099076160.jpg') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.hero-content h1 {
    font-size: 4rem;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    margin-bottom: 1rem;
    animation: fadeInDown 1s ease-out;
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

/* Glassmorphism */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
}

/* Search Box */
.search-box h2 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.input-group {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.input-group label {
    font-weight: 600;
}

.input-group input {
    padding: 0.8rem;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
}

/* Buttons */
.btn {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, background-color 0.3s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn:active {
    transform: translateY(0);
}

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

.primary-btn:hover {
    background-color: #21867a;
}

.secondary-btn {
    background-color: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

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

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

/* Cards */
.card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.dest-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.card-content {
    padding: 1.5rem;
}

.card-content h3 {
    margin-bottom: 0.5rem;
}

/* Ship Cards dynamically added */
.ship-card {
    border: 1px solid #e0e0e0;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.ship-card h3 {
    color: var(--secondary-blue);
}
.ship-card .tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: var(--light-bg);
    color: var(--primary-green);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 1rem;
}

/* Packages */
.packages {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
}

.packages .section-title {
    background: none;
    -webkit-text-fill-color: var(--white);
}

.package-card {
    color: var(--white);
    text-align: center;
    position: relative;
    border: 1px solid var(--glass-border);
}

.package-card h3 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.package-card .price {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--accent-cyan);
}

.package-card ul {
    list-style: none;
    margin-bottom: 2rem;
}

.package-card ul li {
    margin-bottom: 0.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 0.5rem;
}

.package-card .secondary-btn {
    color: var(--white);
    border-color: var(--white);
}
.package-card .secondary-btn:hover {
    background-color: var(--white);
    color: var(--primary-blue);
}

.package-card.premium {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid var(--accent-cyan);
}
.package-card.premium:hover {
    transform: scale(1.08);
}

.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-cyan);
    color: var(--primary-blue);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 800;
    font-size: 0.8rem;
    text-transform: uppercase;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    background: var(--primary-blue);
    color: var(--text-light);
}

/* Animations */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Modal */
.modal-overlay {
    display: none; /* Hidden by default */
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--white);
    padding: 2.5rem;
    width: 90%;
    max-width: 500px;
    border-radius: 16px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    animation: fadeInUp 0.3s ease-out;
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-dark);
    cursor: pointer;
    transition: color 0.3s;
}

.close-btn:hover {
    color: var(--primary-green);
}

.form-group {
    margin-bottom: 1.2rem;
    text-align: left;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-blue);
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

.form-group input:focus {
    border-color: var(--primary-green);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 { font-size: 2.5rem; }
    .hero-content p { font-size: 1.1rem; }
    .package-card.premium { transform: scale(1); }
    .package-card.premium:hover { transform: scale(1.03); }
    nav ul { display: none; /* simple mobile hide for demo */ }
}