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

body {
    font-family: 'Inter', sans-serif;
    background-color: #F4F7FC;
    color: #1E2A5E;
    transition: background 0.3s, color 0.2s;
    line-height: 1.6;
}

body.dark {
    background-color: #121826;
    color: #E0E4F0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navbar */
.navbar {
    background: white;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

body.dark .navbar {
    background: #0F1219;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
}

.logo h1 {
    font-size: 1.4rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 800;
}

.logo span {
    font-size: 0.7rem;
    display: block;
    color: #FF6B35;
}

.nav-links {
    display: flex;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    font-weight: 600;
    color: inherit;
    transition: 0.2s;
}

.nav-links a.active, .nav-links a:hover {
    color: #FF6B35;
}

#darkModeToggle {
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    margin-left: 20px;
    color: inherit;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: inherit;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #0B132B 0%, #1E2A5E 100%);
    background-size: cover;
    color: white;
    padding: 100px 0;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.3);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    background: #FF6B35;
    padding: 8px 20px;
    border-radius: 40px;
    font-size: 0.85rem;
    display: inline-block;
    margin-bottom: 24px;
    font-weight: 600;
}

.hero h1 {
    font-size: 3.2rem;
    font-family: 'Poppins', sans-serif;
    max-width: 700px;
    line-height: 1.2;
}

.highlight {
    color: #FF6B35;
}

.hero p {
    font-size: 1.2rem;
    margin: 24px 0;
    max-width: 550px;
    opacity: 0.95;
}

.btn-primary, .btn-outline, .btn-primary-large {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 40px;
    text-decoration: none;
    font-weight: bold;
    margin-right: 16px;
    transition: 0.2s;
}

.btn-primary, .btn-primary-large {
    background: #FF6B35;
    color: white;
}

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

.btn-primary-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 60px;
}

.hero-stats strong {
    font-size: 2rem;
    display: block;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-tag {
    color: #FF6B35;
    font-weight: 600;
    letter-spacing: 2px;
    font-size: 0.8rem;
    text-transform: uppercase;
}

.section-header h2 {
    font-size: 2.2rem;
    margin-top: 10px;
}

/* Service Grid */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.service-card {
    background: white;
    padding: 32px;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 8px 24px rgba(0,0,0,0.05);
    transition: transform 0.2s;
}

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

body.dark .service-card {
    background: #1A1F2C;
}

.service-card i {
    font-size: 2.8rem;
    color: #FF6B35;
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 12px;
}

.card-link {
    display: inline-block;
    margin-top: 16px;
    color: #FF6B35;
    text-decoration: none;
    font-weight: 600;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #1E2A5E, #0B132B);
    color: white;
    text-align: center;
    padding: 80px 0;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 16px;
}

/* Footer */
footer {
    background: #1E2A5E;
    color: white;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h3, .footer-col h4 {
    margin-bottom: 16px;
}

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

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col a {
    color: #ccc;
    text-decoration: none;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    text-align: center;
    font-size: 30px;
    line-height: 60px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    transition: 0.2s;
    z-index: 999;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: #1E2A5E;
    color: white;
    padding: 5px 10px;
    border-radius: 8px;
    font-size: 12px;
    white-space: nowrap;
    display: none;
}

.whatsapp-float:hover .whatsapp-tooltip {
    display: block;
}

/* Page Hero */
.page-hero {
    background: linear-gradient(135deg, #1E2A5E, #0B132B);
    color: white;
    padding: 60px 0;
    text-align: center;
}

/* Fleet Grid */
.fleet-grid, .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.fleet-item, .project-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

body.dark .fleet-item, body.dark .project-card {
    background: #1A1F2C;
}

.fleet-item img, .project-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.fleet-item h3, .project-card h3 {
    padding: 16px 16px 8px;
}

/* Contact Grid */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 50px;
    margin: 60px 0;
}

.contact-form input, .contact-form select, .contact-form textarea {
    width: 100%;
    padding: 14px;
    margin-bottom: 16px;
    border: 1px solid #ddd;
    border-radius: 12px;
    font-family: inherit;
}

body.dark .contact-form input, 
body.dark .contact-form select, 
body.dark .contact-form textarea {
    background: #1A1F2C;
    border-color: #333;
    color: white;
}

.contact-form button {
    width: 100%;
    border: none;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: white;
        padding: 20px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }
    
    body.dark .nav-links {
        background: #0F1219;
    }
    
    .nav-links.show {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

/* About Page */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin: 60px 0;
}

.milestones {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 30px;
}

.milestone {
    background: #f0f0f0;
    padding: 12px;
    border-radius: 12px;
}

body.dark .milestone {
    background: #1A1F2C;
}

.vision-mission {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin: 60px 0;
}

.vision-box, .mission-box {
    background: white;
    padding: 32px;
    border-radius: 24px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.05);
}

body.dark .vision-box, body.dark .mission-box {
    background: #1A1F2C;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.value-card {
    text-align: center;
    padding: 24px;
}

@media (max-width: 768px) {
    .about-grid, .vision-mission {
        grid-template-columns: 1fr;
    }
}

.service-detailed-card {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 24px;
    background: white;
    padding: 32px;
    border-radius: 24px;
    margin-bottom: 30px;
}

body.dark .service-detailed-card {
    background: #1A1F2C;
}

.service-detailed-card i {
    font-size: 3rem;
    color: #FF6B35;
}