/* Zam Zam Traders - Premium Cement Trading Website */
/* Design System: Copper & Slate - Industrial/Construction Theme */

:root {
    /* Primary Colors */
    --color-primary: #B87333;
    --color-primary-dark: #8B5A2B;
    --color-primary-light: #D4A574;
    
    /* Secondary Colors */
    --color-slate: #2F3640;
    --color-slate-light: #4A5568;
    --color-cream: #F5F0EB;
    --color-cream-dark: #E8E0D5;
    
    /* Accent Colors */
    --color-accent: #C9A87C;
    --color-accent-light: #D4B896;
    
    /* Text Colors */
    --color-text: #2F3640;
    --color-text-light: #6B7280;
    --color-text-muted: #9CA3AF;
    
    /* Background Colors */
    --color-bg: #F5F0EB;
    --color-bg-alt: #FFFFFF;
    --color-bg-dark: #2F3640;
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-slate);
    margin-bottom: var(--space-md);
}

.section-title .accent {
    color: var(--color-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 600px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

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

.btn-light:hover {
    background-color: transparent;
    color: white;
}

.btn-full {
    width: 100%;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(245, 240, 235, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(184, 115, 51, 0.1);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--space-sm) var(--space-lg);
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-slate);
}

.logo-icon {
    font-size: 1.75rem;
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-base);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    background-color: var(--color-primary);
    color: white !important;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    background-color: var(--color-primary-dark);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-slate);
    transition: all var(--transition-base);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: calc(72px + var(--space-3xl)) var(--space-lg) var(--space-3xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-cream-dark) 100%);
    z-index: -2;
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(184, 115, 51, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(47, 54, 64, 0.05) 0%, transparent 50%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: rgba(184, 115, 51, 0.1);
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: var(--space-md);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 600;
    line-height: 1.1;
    color: var(--color-slate);
    margin-bottom: var(--space-md);
}

.hero-title .accent {
    color: var(--color-primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-3xl);
    margin-top: var(--space-3xl);
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(184, 115, 51, 0.2);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: var(--space-xs);
}

/* About Section */
.about {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-alt);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-content {
    max-width: 540px;
}

.about-text {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 500;
}

.feature-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(184, 115, 51, 0.1);
    color: var(--color-primary);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
}

.about-visual {
    position: relative;
}

.about-image-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-image {
    position: relative;
    width: 400px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cement-bag-visual {
    position: relative;
    width: 280px;
    height: 360px;
}

.bag-body {
    position: absolute;
    inset: 0;
    background: linear-gradient(145deg, var(--color-cream) 0%, var(--color-cream-dark) 100%);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 2px solid rgba(184, 115, 51, 0.2);
}

.bag-body::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 40px;
    background: linear-gradient(145deg, var(--color-cream-dark) 0%, var(--color-cream) 100%);
    border-radius: var(--radius-sm);
    border: 2px solid rgba(184, 115, 51, 0.2);
}

.bag-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    padding: var(--space-md);
    background-color: var(--color-primary);
    border-radius: var(--radius-md);
    color: white;
    min-width: 180px;
}

.bag-label .brand {
    display: block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.bag-label .grade {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0.9;
    margin-top: 4px;
}

.about-badge {
    position: absolute;
    bottom: 40px;
    right: 40px;
    background-color: var(--color-slate);
    color: white;
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.badge-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1;
}

.badge-text {
    font-size: 0.75rem;
    opacity: 0.8;
    margin-top: 4px;
}

/* Products Section */
.products {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.product-card {
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
    border: 1px solid rgba(184, 115, 51, 0.1);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.product-card.featured {
    border: 2px solid var(--color-primary);
}

.product-badge {
    position: absolute;
    top: -12px;
    right: var(--space-lg);
    background-color: var(--color-primary);
    color: white;
    padding: 0.375rem 0.875rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.product-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.product-name {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-slate);
    margin-bottom: var(--space-sm);
}

.product-desc {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.product-specs {
    margin-bottom: var(--space-lg);
}

.product-specs li {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding: 0.25rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.product-specs li:last-child {
    border-bottom: none;
}

.product-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: gap var(--transition-fast);
}

.product-cta:hover {
    gap: 0.75rem;
}

/* Services Section */
.services {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-alt);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

.service-item {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background-color: var(--color-bg);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.service-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.3;
    line-height: 1;
}

.service-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-slate);
    margin-bottom: var(--space-xs);
}

.service-content p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* CTA Section */
.cta-section {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg);
}

.cta-box {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-3xl);
    overflow: hidden;
}

.cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 600;
    color: white;
    margin-bottom: var(--space-md);
}

.cta-content p {
    color: rgba(255,255,255,0.9);
    font-size: 1.125rem;
    margin-bottom: var(--space-xl);
}

.cta-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(255,255,255,0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(255,255,255,0.08) 0%, transparent 40%);
}

/* Contact Section */
.contact {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-alt);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
}

.contact-desc {
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.contact-item {
    display: flex;
    gap: var(--space-md);
}

.contact-icon {
    font-size: 1.5rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(184, 115, 51, 0.1);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-slate);
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.contact-form-wrapper {
    background-color: var(--color-bg);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
}

.contact-form h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-slate);
    margin-bottom: var(--space-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-slate);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--color-cream-dark);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.9375rem;
    background-color: var(--color-bg-alt);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(184, 115, 51, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background-color: var(--color-slate);
    color: white;
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: white;
    margin-bottom: var(--space-md);
}

.footer-logo .logo-icon {
    color: var(--color-primary);
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.social-links {
    display: flex;
    gap: var(--space-sm);
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background-color: var(--color-primary);
    transform: translateY(-2px);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1rem;
    font-weight: 600;
    color: white;
    margin-bottom: var(--space-md);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

.footer-contact p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9375rem;
    margin-bottom: 0.75rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    color: rgba(255,255,255,0.5);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    color: rgba(255,255,255,0.5);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .about-visual {
        order: -1;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-xl);
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .footer-legal {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        width: 300px;
        height: 300px;
    }
    
    .cement-bag-visual {
        width: 200px;
        height: 260px;
    }
    
    .about-badge {
        right: 20px;
        bottom: 20px;
    }
}