:root {
    --primary: hsl(220, 80%, 25%);
    --primary-light: hsl(220, 80%, 40%);
    --secondary: hsl(28, 90%, 55%);
    --secondary-hover: hsl(28, 90%, 45%);
    --bg-main: hsl(0, 0%, 98%);
    --bg-card: hsl(0, 0%, 100%);
    --text-main: hsl(220, 20%, 20%);
    --text-light: hsl(220, 10%, 40%);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --shadow-sm: 0 4px 6px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 15px 35px rgba(0,0,0,0.12);
    --radius-md: 12px;
    --radius-lg: 24px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--primary);
    line-height: 1.2;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    font-weight: 800;
}

.section-title::after {
    content: "";
    display: block;
    width: 60px;
    height: 4px;
    background: var(--secondary);
    margin: 0.5rem auto 0;
    border-radius: 2px;
}

p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

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

.section {
    padding: 6rem 0;
}

.bg-light {
    background-color: hsl(220, 30%, 96%);
}

.text-center { text-align: center; }
.large-text { font-size: 1.2rem; max-width: 800px; margin: 0 auto 3rem; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn.primary {
    background-color: var(--secondary);
    color: white;
    box-shadow: 0 4px 15px hsla(28, 90%, 55%, 0.3);
}

.btn.primary:hover {
    background-color: var(--secondary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px hsla(28, 90%, 55%, 0.4);
}

.btn.secondary {
    background-color: white;
    color: var(--primary);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.btn.secondary:hover {
    background-color: var(--primary);
    color: white;
    transform: translateY(-2px);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 4rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    margin-left: 2rem;
    transition: color 0.3s;
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary);
    margin: 4px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 600px;
    background: linear-gradient(135deg, hsl(220, 80%, 15%), var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: 0;
    right: 0;
    height: 100px;
    background: var(--bg-main);
    transform: skewY(-2deg);
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 2;
    padding: 0 2rem;
    animation: fadeIn 1s ease forwards;
    opacity: 0;
    transform: translateY(20px);
}

@keyframes fadeIn {
    to { opacity: 1; transform: translateY(0); }
}

.hero h1 {
    font-size: 4rem;
    color: white;
    margin-bottom: 1.5rem;
}

.hero p {
    color: hsl(220, 30%, 90%);
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Cards Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.card-grid.two-col {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

.card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border-bottom: 4px solid transparent;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
    border-bottom: 4px solid var(--secondary);
}

.card-icon {
    font-size: 2.5rem;
    height: 80px;
    width: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, hsl(220, 80%, 90%), hsl(220, 80%, 98%));
}

.card h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.feature-card {
    text-align: left;
    align-items: flex-start;
}

/* Booking Tabs */
.tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 1rem 2rem;
    background: white;
    border: none;
    border-radius: var(--radius-lg);
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

.tab-btn.active, .tab-btn:hover {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.tab-content {
    display: none;
    background: white;
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    animation: fadeInTab 0.4s ease;
}

@keyframes fadeInTab {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.tab-content.active {
    display: block;
}

.booking-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.booking-form input {
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
}

/* Tour Cards */
.destination-card {
    position: relative;
    height: 300px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.dest-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-size: cover;
    background-position: center;
    transition: transform 0.5s;
}

.destination-card:hover .dest-bg {
    transform: scale(1.1);
}

.dest-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    padding: 2rem 1.5rem;
    color: white;
}

.dest-content h4 { color: white; font-size: 1.5rem; margin-bottom: 0.2rem; }
.dest-content p { color: #f0f0f0; margin-bottom: 0; }

/* Footer */
footer {
    background: var(--primary);
    color: white;
    padding: 4rem 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3, .footer-col h4 {
    color: white;
    margin-bottom: 1.5rem;
}

.footer-col p {
    color: hsl(220, 30%, 80%);
}

.footer-col a {
    display: block;
    color: hsl(220, 30%, 80%);
    text-decoration: none;
    margin-bottom: 0.8rem;
    transition: color 0.3s;
}

.footer-col a:hover {
    color: var(--secondary);
}

.footer-bottom {
    background: hsl(220, 80%, 15%);
    text-align: center;
    padding: 1.5rem;
    color: hsl(220, 30%, 70%);
}

/* Responsive */
@media (max-width: 768px) {
    .navbar { padding: 0 2rem; }
    .nav-links {
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        display: none;
        padding: 2rem;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
    }
    .nav-links.active { display: flex; }
    .nav-links a { margin: 1rem 0; }
    .hamburger { display: block; }

    .hero h1 { font-size: 2.5rem; }
    .section-title { font-size: 2rem; }
}