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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #0a4a6b 0%, #1a6b8f 100%);
    z-index: 1000;
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo span {
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 25px;
}

.nav-links a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: white;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    background: url('https://images.unsplash.com/photo-1494412574643-ff11b0a5c1c3?w=1920&q=80') center/cover;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,74,107,0.9) 0%, rgba(10,74,107,0.7) 50%, transparent 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    color: white;
    padding: 40px 0;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 30px;
    opacity: 0.95;
}

.co2-badge {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 10px;
    margin-top: 40px;
    max-width: 500px;
}

.co2-icon {
    width: 40px;
    height: 40px;
    background: rgba(34,197,94,0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #4ade80;
    flex-shrink: 0;
}

.co2-badge p {
    font-size: 0.9rem;
    margin: 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-outline {
    border: 2px solid #0a4a6b;
    color: #0a4a6b;
}

.btn-outline:hover {
    background: #0a4a6b;
    color: white;
}

.btn-outline-light {
    border: 2px solid white;
    color: white;
}

.btn-outline-light:hover {
    background: white;
    color: #0a4a6b;
}

.btn-primary {
    background: linear-gradient(135deg, #0a4a6b 0%, #1a6b8f 100%);
    color: white;
}

.btn-primary:hover {
    opacity: 0.9;
}

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

.section-dark {
    background: linear-gradient(135deg, #0a4a6b 0%, #1a6b8f 100%);
    color: white;
}

.section h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.section-dark h2 {
    color: white;
}

.section p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 25px;
    opacity: 0.9;
}

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.two-col.reverse {
    direction: rtl;
}

.two-col.reverse > * {
    direction: ltr;
}

.two-col .image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

/* Contact Section */
.contact-section .contact-info {
    margin-top: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 25px;
}

.contact-item .icon {
    font-size: 1.5rem;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.contact-item a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
}

.contact-item a:hover {
    color: white;
}

.contact-form {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 10px;
}

.contact-form h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 15px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 5px;
    color: white;
    font-size: 1rem;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(255,255,255,0.5);
}

.contact-form button {
    width: 100%;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #083d5c 0%, #0a4a6b 100%);
    color: white;
    padding: 60px 0 30px;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
}

.footer-logo span {
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 2px;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 25px;
    margin-bottom: 40px;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

.newsletter {
    text-align: center;
    max-width: 500px;
    margin: 0 auto 40px;
}

.newsletter p {
    margin-bottom: 15px;
    color: rgba(255,255,255,0.8);
}

.newsletter-form {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 5px;
    color: white;
}

.newsletter-form button {
    padding: 12px 25px;
    background: rgba(255,255,255,0.2);
    border: none;
    border-radius: 5px;
    color: white;
    cursor: pointer;
    transition: background 0.3s;
}

.newsletter-form button:hover {
    background: rgba(255,255,255,0.3);
}

.newsletter label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
}

.legal-links {
    display: flex;
    gap: 20px;
}

.legal-links a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.legal-links a:hover {
    color: white;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #0a4a6b 0%, #1a6b8f 100%);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.4);
}

/* Responsive */
@media (max-width: 968px) {
    .nav-links {
        display: none;
    }
    
    .two-col {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .two-col.reverse {
        direction: ltr;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .section h2 {
        font-size: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}