/* Mechanical/Engineering Light Theme CSS */
:root {
    --primary-color: #1f3a52; /* Industrial Navy/Steel Blue */
    --secondary-color: #2c3e50;
    --accent-color: #e67e22; /* Construction Orange */
    --accent-light: #f39c12;
    --bg-color: #ffffff; /* White background for light theme */
    --bg-light: #f4f6f9; /* Light grey for sections */
    --text-color: #333333; /* Dark Charcoal text */
    --text-muted: #666666;
    --text-light: #ffffff;
    --border-color: #e2e8f0;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

/* Header & Navigation */
header {
    background-color: var(--primary-color);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border-bottom: 3px solid var(--accent-color);
}

.logo-container h1 {
    font-size: 1.6rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
}
.logo-container span {
    color: var(--accent-light);
    background: rgba(255,255,255,0.1);
    padding: 2px 8px;
    border-radius: 4px;
    margin-right: 5px;
}

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

nav ul li a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 600;
    transition: color 0.3s;
    text-transform: uppercase;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

nav ul li a:hover {
    color: var(--accent-light);
}

/* Hero Section */
.hero {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    /* Industrial/Machinery related image */
    background: linear-gradient(rgba(31, 58, 82, 0.85), rgba(31, 58, 82, 0.85)), url('https://images.unsplash.com/photo-1565439399249-14a9386d9943?auto=format&fit=crop&q=80') center/cover;
    padding: 0 20px;
    border-bottom: 6px solid var(--accent-color);
}

.hero h2 {
    font-size: 3.5rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.25rem;
    max-width: 800px;
    margin: 0 auto 2.5rem auto;
    color: #e2e8f0;
    font-weight: 400;
}

/* Sections General */
section {
    padding: 5rem 5%;
    background-color: var(--bg-color);
}

/* Zebra striping for sections */
section:nth-of-type(even) {
    background-color: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 3.5rem;
    color: var(--primary-color);
    text-transform: uppercase;
    font-weight: 800;
    letter-spacing: 1px;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--accent-color);
    margin: 15px auto 0;
}

/* About Grid */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.about-card {
    background: var(--bg-color);
    padding: 2.5rem;
    border-radius: 4px;
    border-top: 4px solid var(--primary-color);
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s, border-top-color 0.3s;
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    border-top-color: var(--accent-color);
}

.about-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.4rem;
    text-transform: uppercase;
}

.about-card p {
    color: var(--text-muted);
}

/* Products Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

/* Product & About Cards Animation Enhancement */
.about-card, .product-item {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}
.product-item {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 4px;
    text-align: center;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}

.about-card:hover, .product-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    border-color: var(--accent-color);
}

.product-item img {
    transition: transform 0.5s ease;
}

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

/* Achievements Section */
.achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.achievement-card {
    background: var(--primary-color);
    color: var(--text-light);
    padding: 3rem 1.5rem;
    border-radius: 8px;
    border-bottom: 4px solid var(--accent-color);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.achievement-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-light);
    margin-bottom: 0.5rem;
}

.achievement-title {
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Clients Carousel / Grid */
.clients-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    align-items: center;
}

.client-logo {
    width: 150px;
    height: 100px;
    object-fit: contain;
    filter: grayscale(100%) opacity(0.7);
    transition: all 0.4s ease;
    background: white;
    padding: 10px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.client-logo:hover {
    filter: grayscale(0%) opacity(1);
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.product-item img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    border-radius: 2px;
    margin-bottom: 1.2rem;
    background-color: #f8fafc;
    border: 1px solid var(--border-color);
    padding: 10px;
}

.product-item h4 {
    font-size: 1.15rem;
    color: var(--primary-color);
    font-weight: 700;
}

/* Contact Area */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    background: var(--bg-color);
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
}

.contact-info p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-muted);
}

.contact-info strong {
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 14px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.contact-form input:focus, .contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.1);
}

.btn {
    background: var(--accent-color);
    color: var(--text-light);
    padding: 14px 28px;
    border: none;
    font-weight: 700;
    cursor: pointer;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: background 0.3s, transform 0.1s;
    display: inline-block;
    text-decoration: none;
}

.btn:hover {
    background: #d68910;
}

.btn:active {
    transform: scale(0.98);
}

/* Footer */
footer {
    background: var(--primary-color);
    color: var(--text-light);
    text-align: center;
    padding: 3rem 2rem;
    border-top: 5px solid var(--accent-color);
}

/* Floating WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: #fff;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s;
}

.whatsapp-float:hover {
    transform: scale(1.1) translateY(-5px);
}

/* Responsive */
@media (max-width: 768px) {
    .contact-container {
        grid-template-columns: 1fr;
    }
    nav ul {
        display: none;
    }
    .hero h2 {
        font-size: 2.2rem;
    }
    .hero p {
        font-size: 1.1rem;
    }
}