:root {
    --primary-color: #015958;
    --secondary-color: #003636;
    --text-color: #1f2937;
    --light-bg: #f3f4f6;
    --white: #ffffff;
    --max-width: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

/* Header */
header {
    background-color: var(--white);
    height: var(--header-height);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 50px;
    width: auto;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
    align-items: center;
}

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

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

/* Hero Section */
.hero {
    margin-top: var(--header-height);
    height: 80vh;
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('assets/background_image_1.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding: 0 20px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: background-color 0.3s;
}

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

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}

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

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* Showcase Section */
.showcase {
    padding: 80px 0;
}

.showcase-item {
    display: flex;
    align-items: center;
    gap: 50px;
    margin-bottom: 80px;
}

.showcase-item:nth-child(even) {
    flex-direction: row-reverse;
}

.showcase-text {
    flex: 1;
}

.showcase-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.showcase-img {
    flex: 1;
    display: flex;
    justify-content: flex-start;
    position: relative;
}

.showcase-item:nth-child(even) .showcase-img {
    justify-content: flex-end;
}

.img-wrapper {
    width: 75%;
    position: relative;
}

.img-wrapper img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    display: block;
}

.img-wrapper img.front {
    position: relative;
    z-index: 2;
}

.img-wrapper img.back {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    transform: translate(25%, 25%);
    opacity: 1;
}

.showcase-item:nth-child(even) .img-wrapper img.back {
    transform: translate(-25%, 25%);
}

/* Contact Page */
.contact-section {
    margin-top: var(--header-height);
    padding: 80px 0;
    background-color: var(--light-bg);
    min-height: calc(100vh - var(--header-height));
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    background: var(--white);
    padding: 50px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.contact-info h2 {
    margin-bottom: 30px;
}

.info-item {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
}

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

/* Footer */
footer {
    background-color: var(--white);
    color: var(--text-color);
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid #e5e7eb;
}

footer .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

footer img {
    height: 24px;
    width: auto;
}

/* Responsive */
@media (max-width: 768px) {
    header {
        height: auto;
        position: relative;
        padding: 15px 0;
    }

    .hero, .contact-section {
        margin-top: 0;
    }

    .hero h1 {
        font-size: 2rem;
    }
    
    .showcase-item, 
    .showcase-item:nth-child(even) {
        flex-direction: column;
    }

    .showcase-img,
    .showcase-item:nth-child(even) .showcase-img {
        justify-content: center;
        margin-bottom: 40px;
    }

    .img-wrapper {
        width: 65%;
    }

    .contact-container {
        grid-template-columns: 1fr;
        padding: 30px;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 15px;
    }
}