:root {
    --primary: #1a5d57;
    --secondary: #3d8c7f;
    --accent: #e27d60;
    --light: #f5f9f8;
    --dark: #1a2a2d;
    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Header */
header {
    background-color: white;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-img {
    height: 42px;
    width: 42px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 20px;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary);
}

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

.nav-link {
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

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

.nav-link::after {
    content: "";
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s;
}

.nav-link:hover::after {
    width: 100%;
}

.btn-contact {
    background: var(--gradient);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 500;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-contact:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(26, 93, 87, 0.3);
}

/* Hero Section */
.hero {
    padding-top: 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: url('/api/placeholder/1200/600') center/cover;
    position: relative;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 93, 87, 0.8), rgba(61, 140, 127, 0.7));
}

.hero-content {
    position: relative;
    z-index: 10;
    width: 50%;
    color: white;
}

.hero-subtitle {
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.btn-hero {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--accent);
    color: white;
    border-radius: 30px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-hero:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(226, 125, 96, 0.4);
}

/* About Section */
.about {
    padding: 6rem 0;
    background-color: white;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-subtitle {
    color: var(--secondary);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary);
    position: relative;
    padding-bottom: 1.5rem;
    margin-bottom: 1rem;
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.about-img {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
}

.about-img img {
    width: 100%;
    height: auto;
    display: block;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.about-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    width: calc(50% - 0.75rem);
}

.feature-icon {
    font-size: 1.5rem;
    color: var(--accent);
    min-width: 36px;
    height: 36px;
    background-color: rgba(226, 125, 96, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.feature-text h4 {
    margin-bottom: 0.5rem;
    color: var(--primary);
}

/* Products Section */
.products {
    padding: 6rem 0;
    background-color: var(--light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.product-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.product-img {
    height: 200px;
    overflow: hidden;
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.product-card:hover .product-img img {
    transform: scale(1.05);
}

.product-info {
    padding: 1.5rem;
}

.product-title {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--primary);
}

.product-description {
    margin-bottom: 1.5rem;
    color: #555;
    font-size: 0.95rem;
}

.btn-product {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background: var(--gradient);
    color: white;
    border-radius: 25px;
    font-size: 0.9rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-product:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(26, 93, 87, 0.3);
}

/* Research Section */
.research {
    padding: 6rem 0;
    background-color: white;
}

.research-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.research-card {
    background-color: var(--light);
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.research-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.research-icon {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 1.5rem;
}

.research-title {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.research-text {
    color: #555;
}

/* Contact */
.contact {
    padding: 6rem 0;
    background-color: var(--light);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.contact-list {
    list-style: none;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    color: var(--accent);
    font-size: 1.2rem;
}

.contact-text h4 {
    margin-bottom: 0.3rem;
    color: var(--primary);
}

.contact-form {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0);
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary);
}

.form-input {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    transition: border-color 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: var(--secondary);
}

.form-textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    resize: vertical;
    min-height: 150px;
    transition: border-color 0.3s;
}

.form-textarea:focus {
    outline: none;
    border-color: var(--secondary);
}

.btn-submit {
    background: var(--gradient);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 25px;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(26, 93, 87, 0.3);
}

/* Footer */
footer {
    background-color: var(--dark);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.footer-logo-img {
    height: 36px;
    width: 36px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 18px;
}

.footer-logo-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
}

.footer-about p {
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

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

.social-link {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}

.social-link:hover {
    background-color: var(--accent);
}

.footer-title {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.8rem;
}

.footer-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    opacity: 0.8;
    transition: opacity 0.3s, color 0.3s;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent);
}

.footer-newsletter p {
    margin-bottom: 1rem;
    opacity: 0.8;
}

.newsletter-form {
    display: flex;
}

.newsletter-input {
    flex: 1;
    padding: 0.8rem 1rem;
    border: none;
    border-radius: 25px 0 0 25px;
}

.newsletter-input:focus {
    outline: none;
}

.btn-newsletter {
    background: var(--accent);
    color: white;
    padding: 0.8rem 1.2rem;
    border: none;
    border-radius: 0 25px 25px 0;
    cursor: pointer;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    opacity: 0.7;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content {
        width: 70%;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .testimonials-container {
        flex-wrap: wrap;
    }
    
    .testimonial-card {
        flex: 0 0 calc(50% - 1rem);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-content {
        width: 100%;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .feature-item {
        width: 100%;
    }
    
    .testimonial-card {
        flex: 0 0 100%;
    }
}