:root {
  /* Background Gradient: ocean to sky */
  --bg-dark: hsl(210, 80%, 20%);        /* deep ocean blue */
  --bg-primary: hsl(200, 100%, 35%);    /* Caribbean blue */
  --bg-secondary: hsl(195, 90%, 70%);   /* light sky blue */
  --bg-gradient: linear-gradient(to right, var(--bg-dark), var(--bg-primary), var(--bg-secondary));

  /* Text */
  --text-main: #ffffff;
  --text-muted: #e0f0f8;

  /* Accent Colors */
  --accent: hsl(34, 100%, 65%);         /* warm beachy sand */
  --accent-hover: hsl(34, 100%, 55%);   /* darker for hover */

  /* Card / Form Container */
  --card-bg: rgba(255, 255, 255, 0.07);
  --card-border: rgba(255, 255, 255, 0.15);
  --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);

  /* Inputs */
  --input-bg: rgba(255, 255, 255, 0.1);
  --input-border: rgba(255, 255, 255, 0.25);
  --input-focus: hsl(200, 100%, 50%);
  --input-text: #ffffff;

  /* Buttons */
  --button-bg: var(--accent);
  --button-hover: var(--accent-hover);
  --button-text: #1a1a1a;

  /* Links */
  --link-color: #ffe6b3;
  --link-hover: #ffffff;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-main);
    background: var(--bg-gradient);
}

body.login-page, body.signup-page {
    background: var(--bg-dark);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--bg-dark) !important;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px var(--shadow-color);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.logo h1 {
    font-size: 1.5rem;
    color: var(--accent);
}

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

.nav-links li {
    margin: 0 1.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--link-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

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

/* Hero Section */
.hero {
    height: 100vh;
    background: url('../images/hero (1).jpg') no-repeat center center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-main);
    position: relative;
}

.hero-content {
    max-width: 900px;
    padding: 2.5rem;
    background: transparent;
    border-radius: 0;
    border: none;
    box-shadow: none;
    backdrop-filter: none;
    margin-top: 300px;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1.2rem;
    color: var(--accent);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    line-height: 1.05;
    white-space: nowrap;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    color: var(--text-main);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--button-bg);
    color: var(--button-text);
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s ease;
    font-weight: 600;
}

.cta-button:hover {
    background: var(--button-hover);
}

/* Destinations Section */
.destinations {
    padding: 5rem 5%;
    background: var(--bg-primary);
}

.destinations h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--accent);
}

.destination-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.destination-card {
    background: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.destination-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 6px 20px var(--shadow-color);
}

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

.destination-card h3 {
    padding: 1rem;
    color: var(--accent);
}

.destination-card p {
    padding: 0 1rem 1rem;
    color: var(--text-muted);
}

.price {
    color: var(--accent);
    font-size: 1.1rem;
    font-weight: 600;
    padding-bottom: 1rem;
}

/* Packages Section */
.packages {
    padding: 5rem 5%;
    background: var(--bg-dark);
}

.packages h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--accent);
}

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

.package-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 3px 10px var(--shadow-color);
    text-align: center;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.package-header {
    margin-bottom: 1.5rem;
}

.package-features {
    list-style: none;
    margin: 1.5rem 0;
}

.package-features li {
    margin: 0.5rem 0;
    color: var(--text-muted);
}

.book-button {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: var(--button-bg);
    color: var(--button-text);
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s ease;
    font-weight: 600;
}

.book-button:hover {
    background: var(--button-hover);
}

.book-btn-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: auto;
    margin-bottom: 1.5rem;
}

/* About Section */
.about {
    padding: 5rem 5%;
    background: var(--bg-primary);
    text-align: center;
}

.about h2 {
    margin-bottom: 2rem;
    color: var(--accent);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-main);
}

/* Contact Section */
.contact {
    padding: 5rem 5%;
    background: var(--bg-dark);
}

.contact h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--accent);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: 1px solid var(--input-border);
    border-radius: 5px;
    font-family: inherit;
    background: var(--input-bg);
    color: var(--text-main);
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

.submit-button {
    padding: 1rem;
    background: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
    font-weight: 600;
}

.submit-button:hover {
    background: var(--button-hover);
}

/* Footer */
footer {
    background: var(--bg-dark);
    color: var(--text-main);
    padding: 3rem 5% 1rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--accent);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin: 0.5rem 0;
}

.footer-section a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--link-hover);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    font-size: 1.5rem;
    color: var(--accent);
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--accent-hover);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

/* Auth Forms (Signup/Login) */
.signup-container, .login-container {
    max-width: 500px;
    margin: 100px auto;
    padding: 20px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 0 10px var(--shadow-color);
    color: var(--accent);
    border: 1px solid var(--border-color);
}
.signup-container h2, .login-container h2 {
    color: var(--accent);
    font-weight: 700;
}
.form-group label {
    color: var(--accent);
}
.form-group input {
    background: var(--input-bg);
    color: #1a1a1a;
    border: 1px solid var(--input-border);
}
.form-group input::placeholder {
    color: #888;
    opacity: 1;
}
.btn-signup, .btn-login {
    width: 100%;
    padding: 10px;
    background: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s;
}
.btn-signup:hover, .btn-login:hover {
    background: var(--button-hover);
}

/* Error Message */
.error {
    color: #ff6b6b;
    font-size: 0.9em;
    margin-top: 5px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        flex-direction: column;
        position: fixed;
        top: 0;
        left: -70%;
        background: var(--bg-dark);
        width: 70%;
        height: 100vh;
        justify-content: flex-start;
        padding-top: 40px;
        display: flex;
        transition: left 0.3s ease-in-out;
        z-index: 999;
    }

    .nav-links.show {
        left: 0;
        top: 50px;
    }

    .nav-links li {
        margin: 0;
        width: 100%;
        text-align: left;
        padding-left: 5%;
    }

    .nav-links a {
        padding: 0.8rem 0;
        display: block;
    }

    .hamburger {
        display: block;
        z-index: 1002;
    }

    .hamburger span {
        display: block;
        width: 25px;
        height: 3px;
        margin: 5px auto;
        background: var(--text-main);
        transition: all 0.3s ease-in-out;
    }

    .logo-desktop {
        display: none;
    }

    .logo-mobile h1 {
        font-size: 1.5rem;
        color: var(--accent);
    }

    .mobile-menu-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1rem 5%;
        width: 100%;
        border-bottom: 1px solid var(--card-border);
        margin-bottom: 0;
    }

    .close-btn {
        color: var(--text-main);
        font-size: 2rem;
        cursor: pointer;
        transition: color 0.3s ease;
    }

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

    .navbar {
        background: var(--bg-dark);
        box-shadow: none;
        border-bottom: none;
    }

    body.nav-open {
        overflow: hidden;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-content h1 {
        font-size: 3.0rem;
    }
}

.user-greeting {
    position: absolute;
    top: 70px;
    right: 3vw;
    background: var(--card-bg);
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    font-size: 1.1rem;
    color: var(--accent);
    font-weight: 500;
    z-index: 1100;
    border: 1px solid var(--card-border);
    text-align: right;
}
@media (max-width: 768px) {
    .user-greeting {
        top: 60px;
        right: 2vw;
        font-size: 1rem;
        padding: 0.5rem 1rem;
    }
}

/* Fullscreen image modal overlay */
#image-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    cursor: zoom-out;
}
#image-modal-overlay img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 10px;
    box-shadow: 0 4px 32px rgba(0,0,0,0.4);
}

.carousel-image {
    pointer-events: none !important;
}
.carousel-image.active {
    pointer-events: auto !important;
}