/* ============================================
   NA Manufacturing Portfolio - Styles
   Industrial Minimalism with Sustainability Accent
   ============================================ */

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

:root {
    /* Color Palette */
    --primary: #1e3a5f;
    --accent: #4ade80;
    --secondary: #f5f3f0;
    --dark: #0f172a;
    --light: #ffffff;
    --border: #e5e7eb;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    
    /* Typography */
    --font-display: 'Poppins', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

html {
    scroll-behavior: smooth;
}

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

/* ============================================
   UTILITY CLASSES
   ============================================ */

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.accent-line {
    width: 2rem;
    height: 0.25rem;
    background-color: var(--accent);
    margin: var(--spacing-md) 0;
}

.section-intro {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xl);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--light);
}

.btn-primary:hover {
    background-color: #22c55e;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.btn-accent {
    background-color: var(--primary);
    color: var(--light);
}

.btn-accent:hover {
    background-color: #0f172a;
}

.btn-order {
    background-color: var(--accent);
    color: var(--light);
    padding: 0.5rem 1.25rem;
    border-radius: 0.375rem;
    font-weight: 600;
}

.btn-order:hover {
    background-color: #22c55e;
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--light);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--primary);
}

.logo-circle {
    width: 2.75rem;
    height: 2.75rem;
    background-color: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--light);
    font-size: 1.25rem;
}

.logo-text h1 {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1;
}

.logo-text p {
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.125rem;
    color: var(--accent);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary);
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--light);
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: var(--spacing-2xl) var(--spacing-lg);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.85) 0%, rgba(30, 58, 95, 0.7) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    color: var(--light);
}

.hero-badge {
    display: inline-block;
    background-color: var(--accent);
    color: var(--light);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.125rem;
    margin-bottom: var(--spacing-lg);
}

.hero-content h2 {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.hero-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .hero {
        min-height: 400px;
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background-color: var(--secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-content h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.about-content p {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat h4 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: var(--spacing-xs);
}

.stat p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 0.5rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content h3 {
        font-size: 1.5rem;
    }
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */

.products {
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.products h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.product-card {
    background-color: var(--light);
    border: 1px solid var(--border);
    border-radius: 0.375rem;
    overflow: hidden;
    transition: var(--transition);
}

.product-card:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.product-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
    background-color: #f3f4f6;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.product-info {
    padding: var(--spacing-xl);
}

.product-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.125rem;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
}

.product-info h4 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.product-info p {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.product-features {
    list-style: none;
    space-y: var(--spacing-md);
}

.product-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

.product-features span {
    color: var(--accent);
    font-weight: 700;
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .products h3 {
        font-size: 1.5rem;
    }
}

/* ============================================
   PROCESS SECTION
   ============================================ */

.process {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background-color: var(--secondary);
}

.process h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin: var(--spacing-2xl) 0;
}

.process-step {
    text-align: left;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    background-color: var(--accent);
    color: var(--light);
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.process-step h4 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.process-step p {
    color: var(--text-light);
    line-height: 1.8;
}

.process-image {
    margin-top: var(--spacing-2xl);
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.process-image img {
    width: 100%;
    height: auto;
}

@media (max-width: 768px) {
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .process h3 {
        font-size: 1.5rem;
    }
}

/* ============================================
   GALLERY SECTION
   ============================================ */

.gallery {
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.gallery h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
    border-radius: 0.375rem;
    background-color: #f3f4f6;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

@media (max-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery h3 {
        font-size: 1.5rem;
    }
}

/* ============================================
   SPECIFICATIONS SECTION
   ============================================ */

.specs {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background-color: var(--secondary);
}

.specs h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.specs-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.spec-card {
    background-color: var(--light);
    padding: var(--spacing-xl);
    border-radius: 0.375rem;
    border: 1px solid var(--border);
    text-align: center;
}

.spec-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
}

.spec-card h4 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.spec-card p {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

@media (max-width: 768px) {
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .specs h3 {
        font-size: 1.5rem;
    }
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact {
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-info h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.contact-details {
    margin-top: var(--spacing-xl);
}

.detail {
    margin-bottom: var(--spacing-lg);
}

.detail strong {
    display: block;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.detail p {
    color: var(--text-light);
}

.detail a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.detail a:hover {
    text-decoration: underline;
}

/* Contact Form */

.contact-form {
    background-color: var(--secondary);
    padding: var(--spacing-xl);
    border-radius: 0.375rem;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: 0.375rem;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.1);
}

.form-group textarea {
    resize: vertical;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background-color: var(--primary);
    color: var(--light);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
}

.footer p {
    margin-bottom: var(--spacing-xs);
}

.footer p:last-child {
    margin-bottom: 0;
    opacity: 0.8;
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */

@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

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

.product-card,
.process-step,
.gallery-item {
    animation: fadeIn 0.6s ease-out forwards;
}

.product-card:nth-child(2) {
    animation-delay: 0.1s;
}

.process-step:nth-child(2) {
    animation-delay: 0.1s;
}

.process-step:nth-child(3) {
    animation-delay: 0.2s;
}