/* ========================================
   CSS Stylesheet for HSE Intro Page
   Rahpooyan Sayeh Gostar Shiraz
   ======================================== */

/* ===== FONTS ===== */
@import url('https://cdn.jsdelivr.net/gh/rastikerdar/iran-sans/dist/font-face.css');

/* ===== ROOT VARIABLES ===== */
:root {
    /* Brand Colors */
    --color-firefighting: #dc2626; /* Red for Firefighting */
    --color-safety: #eab308; /* Yellow for Safety */
    --color-camping: #16a34a; /* Green for Camping */
    --color-industrial: #64748b; /* Gray for Industrial */
    
    /* Base Colors */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-50: #edf3fc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #C0C0C0;
    --color-gray-300: #cbd5e1;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius: 8px;
    
    /* Transitions */
    --transition: all 0.3s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

/* ===== GLOBAL RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'IRANSans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--color-white);
    color: var(--color-gray-900);
    line-height: 1.6;
    overflow-x: hidden;
}

/* English font for English content */
body[dir="ltr"] {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', sans-serif;
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1280px;
    height: :80px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== HEADER ===== */
.header {
    background: var(--color-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.company-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin: 0;
}

.company-tagline {
    font-size: 0.75rem;
    color: var(--color-gray-600);
    font-family: 'Segoe UI', sans-serif;
}

/* ===== NAVIGATION ===== */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.main-nav a {
    text-decoration: none;
    color: var(--color-gray-700);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius);
    transition: var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    background: var(--color-gray-50);
    color: var(--color-gray-900);
}

.lang-toggle {
    background: var(--color-gray-100);
    border: none;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.lang-toggle:hover {
    background: var(--color-gray-200);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-gray-700);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== HERO SECTION ===== */
.hero {
  /*  background: rgba(255, 193, 7, 0.95); /* Dark yellow/golden background */
    padding: var(--spacing-sm) 0;
    text-align: center;
}

.hero-title {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray-600);
}

/* ===== FILTER SECTION ===== */
.filter-section {
    padding: var(--spacing-md) 0;
    background: var(--color-white);
}

.search-box {
    max-width: 600px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    gap: var(--spacing-xs);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius);
    padding: var(--spacing-xs);
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--color-gray-400);
    box-shadow: var(--shadow-md);
}

#searchInput {
    flex: 1;
    border: none;
    outline: none;
    padding: var(--spacing-sm);
    font-size: 1rem;
    font-family: inherit;
}

.search-btn {
    background: var(--color-gray-600);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    background: var(--color-gray-700);
}

/* Filter Chips */
.filter-chips {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.chip {
    background: var(--color-white);
    border: 2px solid var(--color-gray-300);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 50px;
    cursor: pointer;
    font-weight: 700;
    transition: var(--transition);
}

.chip:hover {
    border-color: var(--color-gray-400);
    transform: translateY(-2px);
}

.chip.active {
    background: var(--color-gray-600);
    color: var(--color-white);
    border-color: var(--color-gray-600);
}

.chip[data-category="safety"].active {
    background: var(--color-safety);
    border-color: var(--color-safety);
    color: var(--color-gray-900);
}

.chip[data-category="firefighting"].active {
    background: var(--color-firefighting);
    border-color: var(--color-firefighting);
}

.chip[data-category="camping"].active {
    background: var(--color-camping);
    border-color: var(--color-camping);
}

.chip[data-category="industrial"].active {
    background: var(--color-industrial);
    border-color: var(--color-industrial);
}

/* ===== SECTIONS ===== */
.categories-section,
.brands-section,
.about-section,
.seo-content,
.contact-section {
    padding: var(--spacing-md) 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-900);
}

.section-subtitle {
    text-align: center;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-md);
}

/* ===== CATEGORY CARDS ===== */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.category-card {
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius);
    padding: var(--spacing-sm);
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

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

.category-card[data-category="safety"]:hover {
    border-color: var(--color-safety);
}

.category-card[data-category="firefighting"]:hover {
    border-color: var(--color-firefighting);
}

.category-card[data-category="camping"]:hover {
    border-color: var(--color-camping);
}

.category-card[data-category="industrial"]:hover {
    border-color: var(--color-industrial);
}

.category-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.safety-icon {
    background: rgba(234, 179, 8, 0.1);
    color: var(--color-safety);
}

.firefighting-icon {
    background: rgba(220, 38, 38, 0.1);
    color: var(--color-firefighting);
}

.camping-icon {
    background: rgba(22, 163, 74, 0.1);
    color: var(--color-camping);
}

.industrial-icon {
    background: rgba(100, 116, 139, 0.1);
    color: var(--color-industrial);
}

.category-card:hover .category-icon {
    transform: scale(1.1) rotate(5deg);
}

.category-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-900);
}

.subcategories {
    list-style: none;
    text-align: right;
    margin-bottom: var(--spacing-md);
}

.subcategories li {
    padding: var(--spacing-xs) 0;
    color: var(--color-gray-600);
    border-bottom: 1px solid var(--color-gray-100);
}

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

.category-btn {
    width: 100%;
    background: var(--color-gray-600);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    font-weight: 800;
    cursor: pointer;
    transition: var(--transition);
}

.category-card[data-category="safety"] .category-btn:hover {
    background: var(--color-safety);
    color: var(--color-gray-900);
}

.category-card[data-category="firefighting"] .category-btn:hover {
    background: var(--color-firefighting);
}

.category-card[data-category="camping"] .category-btn:hover {
    background: var(--color-camping);
}

.category-card[data-category="industrial"] .category-btn:hover {
    background: var(--color-industrial);
}

/* ===== BRANDS SECTION ===== */
.brands-section {
    background: var(--color-gray-50);
}

.brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.brand-card {
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    text-align: center;
    transition: var(--transition);
    position: relative;
    cursor: pointer;
}

.brand-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gray-400);
}

/* Featured Brands - Larger and More Prominent */
.brand-card.featured {
    grid-column: span 1;
    border-width: 3px;
}

.brand-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--color-firefighting);
    color: var(--color-white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
}

.brand-logo-placeholder {
    width: 100%;
    height: 120px;
    background: var(--color-gray-100);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-gray-600);
    transition: var(--transition);
}

.brand-card:hover .brand-logo-placeholder {
    background: var(--color-gray-200);
}

.brand-name {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-gray-900);
}

.brand-country {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-md);
}

.brand-btn {
    width: 100%;
    background: var(--color-gray-600);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.brand-btn:hover {
    background: var(--color-gray-700);
}

/* ===== ABOUT SECTION ===== */
.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.about-card {
    background: var(--color-gray-50);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
}

.about-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-900);
}

.about-card ul {
    list-style: none;
}

.about-card li {
    padding: var(--spacing-xs) 0;
    color: var(--color-gray-700);
}

/* ===== SEO CONTENT SECTION ===== */
.seo-content {
    background: var(--color-gray-50);
}

.seo-text {
    max-width: 900px;
    margin: 0 auto;
}

.seo-text h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-900);
}

.seo-text h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-900);
}

.seo-text p {
    line-height: 1.8;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-md);
}

.seo-text ul {
    list-style: disc;
    margin-right: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.seo-text li {
    padding: var(--spacing-xs) 0;
    color: var(--color-gray-700);
    line-height: 1.8;
}

/* ===== CONTACT SECTION ===== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.contact-card {
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition);
}

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

.contact-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: var(--color-gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-700);
}

.contact-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.contact-link {
    color: var(--color-gray-900);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.contact-link:hover {
    color: var(--color-firefighting);
}

.contact-text {
    color: var(--color-gray-700);
    line-height: 1.6;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--color-gray-900);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-section h5 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-section h6 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-section p {
    color: var(--color-gray-300);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: var(--color-gray-300);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    padding: var(--spacing-xs) 0;
}

.footer-section a:hover {
    color: var(--color-white);
    transform: translateX(-5px);
}

.footer-bottom {
    border-top: 1px solid var(--color-gray-700);
    padding-top: var(--spacing-md);
    text-align: center;
    color: var(--color-gray-400);
}

/* ===== MOBILE BOTTOM NAVIGATION ===== */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-xs) 0;
    z-index: 1000;
}

.mobile-bottom-nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    color: var(--color-gray-600);
    font-size: 0.75rem;
    padding: var(--spacing-xs);
    transition: var(--transition);
}

.nav-item.active,
.nav-item:hover {
    color: var(--color-gray-900);
}

.nav-item.whatsapp-nav {
    color: #25D366;
}

.nav-item.whatsapp-nav:hover {
    transform: scale(1.1);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    /* Header */
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Hero */
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    /* Sections */
    .section-title {
        font-size: 1.5rem;
    }
    
    /* Mobile Bottom Nav */
    .mobile-bottom-nav {
        display: flex;
    }
    
    /* Add padding to bottom of content to prevent overlap with bottom nav */
    .footer {
        padding-bottom: 80px;
    }
    
    /* Categories */
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    /* Brands */
    .brands-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .filter-section,
    .categories-section,
    .brands-section,
    .about-section,
    .contact-section {
        padding: var(--spacing-md) 0;
    }
    
    .logo {
        width: 50px;
        height: 50px;
    }
    
    .company-name {
        font-size: 1rem;
    }
}

/* ===== UTILITY CLASSES ===== */
.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}