/* Cogent Products Manufacturing - Modern Website Styles */

/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Brand Colors */
    --primary-blue: #0065a4;
    --secondary-blue: #004d7a;
    --accent-orange: #ff6b35;
    --neutral-gray: #f8f9fa;
    --dark-gray: #343a40;
    --light-gray: #6c757d;
    --white: #ffffff;
    
    /* Typography */
    --font-primary: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-secondary: 'Source Sans Pro', Arial, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

body {
    font-family: var(--font-secondary);
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-blue);
}

/* Layout Components */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xxl) 0;
}

.section-alt {
    background-color: var(--neutral-gray);
}

/* Header */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.nav {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav a {
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background-color 0.3s ease;
}

.nav a:hover {
    background-color: var(--neutral-gray);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    padding: calc(var(--spacing-xxl) + 60px) 0 var(--spacing-xxl);
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 70vh;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 101, 164, 0.7) 0%, rgba(0, 77, 122, 0.8) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 3;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    position: relative;
    z-index: 3;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #ff6b35, #ff8c42);
    color: white;
    border: 2px solid transparent;
    font-size: 1.2rem;
    padding: 1.2rem 2.5rem;
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #e55a2b, #e67a35);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, #ffffff, #f8f9fa);
    color: #0065a4;
    border: 2px solid transparent;
    font-size: 1.2rem;
    padding: 1.2rem 2.5rem;
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    color: #004d7a;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.4);
}

/* Grid System */ver {
    background-color: var(--primary-blue);
    color: var(--white);
}

/* Cards */
.card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Product Categories */
.product-category {
    text-align: center;
    padding: var(--spacing-lg);
}

.product-category img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

/* Certifications */
.certifications {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.certification-badge {
    background-color: var(--white);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
    color: var(--primary-blue);
}

/* Contact Form */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid #ddd;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
}

/* Footer */
.footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer h4 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.footer a {
    color: #ccc;
}

.footer a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid #555;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
    }
    
    .nav.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .certifications {
        gap: var(--spacing-sm);
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}