:root {
    --primary-color: #0d47a1; /* Industrial Blue */
    --secondary-color: #0d3c85;
    --accent-color: #fdd835;
    --dark-grey: #1a1a1a;
    --light-grey: #f8f9fa;
    --white: #ffffff;
    --text-color: #2d3436;
    --font-heading: 'Inter', 'Montserrat', sans-serif;
    --font-body: 'Inter', 'Roboto', sans-serif;
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    --border-radius: 12px;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 15px 30px rgba(0,0,255,0.1);
}

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

body {
    font-family: var(--font-body);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--white);
}

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

h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* Header & Nav */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--primary-color);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    padding: 6px;
    position: relative;
    overflow: hidden;
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
}

.logo-icon i.lamella {
    width: 24px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--dark-grey);
    letter-spacing: -1px;
}

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

.nav-links {
    display: flex;
    gap: 30px;
}

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

.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

.btn-phone {
    background-color: var(--accent-color);
    color: var(--dark-grey);
    padding: 10px 15px;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: url('https://images.unsplash.com/photo-1513694490825-236b5ec6366c?q=80&w=2069&auto=format&fit=crop') no-repeat center center/cover;
    position: relative;
    display: flex;
    align-items: center;
    color: var(--white);
    padding-top: 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.4));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.highlight {
    color: var(--accent-color);
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

/* Services */
.services {
    padding: 100px 0;
    background-color: var(--light-grey);
}

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

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border-bottom: 4px solid transparent;
    box-shadow: var(--shadow-sm);
}

.service-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}

.service-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
}

/* Social Proof */
.social-proof {
    padding: 80px 0;
}

.brands-carousel {
    text-align: center;
    margin-bottom: 60px;
}

.brand-icons {
    display: flex;
    justify-content: center;
    gap: 50px;
    font-size: 3rem;
    color: #ccc;
    margin-top: 30px;
}

.testimonials {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.testimonial-card {
    background: var(--light-grey);
    padding: 30px;
    border-radius: 10px;
    max-width: 450px;
    font-style: italic;
}

.testimonial-card cite {
    display: block;
    margin-top: 15px;
    font-style: normal;
    font-weight: 700;
    color: var(--primary-color);
}

/* Contact */
.contact {
    padding: 100px 0;
    background-color: var(--dark-grey);
    color: var(--white);
}

.contact-container {
    display: flex;
    gap: 50px;
    align-items: center;
}

.contact-info {
    flex: 1;
}

.info-list {
    margin-top: 30px;
}

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

.info-list i {
    color: var(--accent-color);
}

.contact-form-wrapper {
    flex: 1;
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
}

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

input, textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
}

.btn-block {
    width: 100%;
}

/* Footer */
.footer {
    padding: 40px 0;
    background: #1a1a1a;
    color: #777;
    text-align: center;
}

.footer-logo {
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
}

/* WhatsApp Button */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    box-shadow: 2px 5px 15px rgba(0,0,0,0.3);
    z-index: 1000;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    70% { transform: scale(1.1); box-shadow: 0 0 0 10px rgba(37, 211, 102, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.active {
    opacity: 1;
    transform: translateY(0);
}

.animate-fade-in {
    animation: fadeIn 1.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .contact-container {
        flex-direction: column;
    }
    
    .hero-btns {
        flex-direction: column;
    }

    .testimonial-card {
        max-width: 100%;
    }
}