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

:root {
    --navy: #1e3a5f;
    --green: #6eb743;
    --light-green: #8bc34a;
    --dark-navy: #0f1f33;
    --gray: #f5f5f5;
    --text-gray: #666;
    --white: #ffffff;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* Responsive Images */
img {
    max-width: 100%;
    height: auto;
}

/* Navigation */
nav {
    background: var(--white);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-bottom: 1px solid #e0e0e0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--navy);
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

.logo-text {
    color: var(--navy);
}

.logo-arrow {
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 12px 0 12px 20px;
    border-color: transparent transparent transparent var(--green);
    margin-left: 10px;
}

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

.nav-links > li {
    position: relative;
}

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

.nav-links a:hover,
.nav-links a.active {
    color: var(--green);
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    min-width: 200px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-radius: 5px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    margin-top: 0.5rem;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    list-style: none;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--navy);
    transition: background-color 0.2s;
}

.dropdown-menu a:hover {
    background-color: var(--gray);
    color: var(--green);
}

/* Dropdown Arrow */
.dropdown > a::after {
    content: '▼';
    font-size: 0.7rem;
    margin-left: 0.5rem;
    display: inline-block;
    transition: transform 0.3s;
}

.dropdown:hover > a::after {
    transform: rotate(180deg);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.mobile-menu span {
    width: 25px;
    height: 3px;
    background: var(--navy);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    background: var(--dark-navy);
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
    margin-top: 60px;
}

.hero-slideshow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 2s ease-in-out;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-slide.active {
    opacity: 1;
}

.hero-slide::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(30, 58, 95, 0.85);
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(110, 183, 67, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(110, 183, 67, 0.05) 0%, transparent 50%);
    z-index: 2;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 3;
}

.hero h1 {
    font-size: 3.5rem;
    color: white;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out;
}

.hero p {
    font-size: 1.4rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 2rem;
    max-width: 600px;
    animation: fadeInUp 0.8s ease-out 0.2s;
    animation-fill-mode: both;
}

/* Page Header (for non-hero pages) */
.page-header {
    background: var(--navy);
    padding: 100px 0 40px;
    margin-top: 60px;
}

.page-header h1 {
    color: white;
    font-size: 2.5rem;
    text-align: center;
}

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

/* Section Styles */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--navy);
    margin-bottom: 3rem;
}

/* CTA Button */
.cta-button {
    display: inline-block;
    background: var(--green);
    color: white;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.3s;
    animation: fadeInUp 0.8s ease-out 0.4s;
    animation-fill-mode: both;
}

.cta-button:hover {
    background: var(--light-green);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(110, 183, 67, 0.3);
}

/* Features Grid */
.features {
    padding: 55px 0;
    background: var(--gray);
}

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

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: white;
}

.feature-card h3 {
    color: var(--navy);
    margin-bottom: 1rem;
}

/* Video Section */
.video-section {
    padding: 60px 0;
    background: white;
}

.video-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-title {
    text-align: center;
    font-size: 2rem;
    color: var(--navy);
    margin-bottom: 2rem;
}

/* Product Section */
.product {
    padding: 80px 0;
}

.product-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.product-info h2 {
    font-size: 2.5rem;
    color: var(--navy);
    margin-bottom: 1.5rem;
}

.product-info p {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.product-features {
    list-style: none;
    margin: 2rem 0;
}

.product-features li {
    padding: 0.5rem 0;
    color: var(--text-gray);
    position: relative;
    padding-left: 2rem;
}

.product-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--green);
    font-weight: bold;
    font-size: 1.2rem;
}

.product-image {
    background: linear-gradient(135deg, #f0f0f0 0%, #e0e0e0 100%);
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.product-image::before {
    content: 'TERRALINE LITE';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.5rem;
    font-weight: bold;
    color: rgba(30, 58, 95, 0.1);
    white-space: nowrap;
}

.product-placeholder {
    width: 300px;
    height: 300px;
    background: var(--navy);
    margin: 0 auto;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    position: relative;
    z-index: 1;
}

/* Media Gallery */
.media-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.media-item {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.media-item:hover {
    transform: scale(1.05);
}

.media-placeholder {
    height: 200px;
    background: linear-gradient(135deg, #e0e0e0 0%, #f0f0f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-gray);
}

/* Contact Section */
.contact {
    background: var(--navy);
    color: white;
    padding: 80px 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.contact-form {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 10px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 5px;
    background: rgba(255,255,255,0.9);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-button {
    background: var(--green);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
}

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

/* Footer */
footer {
    background: var(--dark-navy);
    color: white;
    text-align: center;
    padding: 2rem 0;
}

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

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        gap: 1rem;
    }

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

    /* Mobile dropdown */
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        margin-top: 0;
        margin-left: 1rem;
        background: rgba(0,0,0,0.05);
    }

    .dropdown > a::after {
        content: '';
    }

    .mobile-menu {
        display: flex;
    }

    .hero {
        padding: 80px 0 60px;
    }

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

    .hero p {
        font-size: 1.1rem;
    }

    .cta-button {
        padding: 0.8rem 2rem;
        font-size: 0.9rem;
    }

    .section {
        padding: 60px 0;
    }

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

    .product-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .product-image {
        order: -1; /* Move image above text on mobile */
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .video-wrapper {
        margin: 0 -1rem; /* Full width video on mobile */
    }

    .page-header {
        padding: 80px 0 30px;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .container {
        padding: 0 1rem;
    }

    .nav-container {
        padding: 0 1rem;
    }

    /* Contact form on mobile */
    .contact-form {
        padding: 1.5rem;
    }

    .form-group input,
    .form-group textarea {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

/* Additional mobile improvements */
@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
        line-height: 1.3;
    }

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

    .product-placeholder {
        width: 200px;
        height: 200px;
        font-size: 2rem;
    }

    .media-gallery {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-3 {
    margin-top: 3rem;
}

.mb-3 {
    margin-bottom: 3rem;
}

.max-width-800 {
    max-width: 800px;
    margin: 0 auto;
}