/* ==========================================
   ChiMay Website - Main Stylesheet
   Modern B2B Industrial Design
   Colors: Primary #0056b3, Secondary #f8f9fa, Accent #28a745
   ========================================== */

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

:root {
    --primary-color: #0056b3;
    --primary-dark: #003d80;
    --primary-light: #337ab7;
    --secondary-color: #f8f9fa;
    --accent-color: #28a745;
    --accent-dark: #1e7e34;
    --text-dark: #212529;
    --text-light: #6c757d;
    --border-color: #dee2e6;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

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

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==========================================
   Header
   ========================================== */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo img {
    height: 50px;
    width: auto;
}

.logo h1 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0;
}

.logo h1 a {
    color: var(--primary-color);
    font-size: 0;
}

.logo h1 a::before {
    content: "ChiMay";
    font-size: 1.5rem;
    font-weight: 700;
}

.nav {
    display: flex;
    align-items: center;
}

.nav > ul {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav > ul > li {
    position: relative;
}

.nav > ul > li > a {
    padding: 10px 0;
    font-weight: 500;
    color: var(--text-dark);
    display: block;
}

.nav > ul > li > a:hover {
    color: var(--primary-color);
}

.nav ul ul {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    box-shadow: var(--shadow);
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    border-radius: 4px;
    overflow: hidden;
}

.nav li:hover > ul {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav ul ul li a {
    padding: 12px 20px;
    display: block;
    color: var(--text-dark);
    border-bottom: 1px solid var(--border-color);
}

.nav ul ul li:last-child a {
    border-bottom: none;
}

.nav ul ul li a:hover {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    transition: var(--transition);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/hero-bg.jpg') center/cover;
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 30px;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero .cta-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white);
    padding: 15px 40px;
    border-radius: 5px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero .cta-button:hover {
    background-color: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.4);
    color: var(--white);
}

/* ==========================================
   Product Categories Section
   ========================================== */
.product-categories {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.category-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    padding: 40px 30px;
}

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

.category-card .icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
}

.category-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.category-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.category-card .btn {
    display: inline-block;
    padding: 10px 30px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 5px;
    font-weight: 500;
    transition: var(--transition);
}

.category-card .btn:hover {
    background-color: var(--primary-dark);
    color: var(--white);
}

/* ==========================================
   Why Choose Us Section
   ========================================== */
.why-choose {
    padding: 80px 0;
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    text-align: center;
    padding: 30px 20px;
    border-radius: 8px;
    transition: var(--transition);
}

.feature-card:hover {
    background-color: var(--secondary-color);
}

.feature-card .icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h4 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

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

/* ==========================================
   Products Page
   ========================================== */
.products-page {
    padding: 60px 0;
}

.page-header {
    background-color: var(--secondary-color);
    padding: 40px 0;
    margin-bottom: 40px;
}

.page-header h1 {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 10px;
}

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

.breadcrumb a {
    color: var(--primary-color);
}

.product-filters {
    margin-bottom: 40px;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    border: 2px solid var(--border-color);
    background: var(--white);
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.filter-btn.active,
.filter-btn:hover {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.product-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.product-card .image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-bottom: 1px solid var(--border-color);
}

.product-card .content {
    padding: 20px;
}

.product-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.product-card .model {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.product-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 15px;
    line-height: 1.5;
}

.product-card .btn {
    display: inline-block;
    padding: 8px 20px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 5px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.product-card .btn:hover {
    background-color: var(--primary-dark);
    color: var(--white);
}

/* ==========================================
   Product Detail Page
   ========================================== */
.product-detail {
    padding: 60px 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.product-images {
    position: sticky;
    top: 100px;
}

.product-images img {
    width: 100%;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.product-info h1 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.product-info .model {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 20px;
}

.product-description {
    margin-bottom: 30px;
}

.product-description h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.product-description p {
    margin-bottom: 10px;
    line-height: 1.8;
    color: var(--text-light);
}

.product-specs {
    margin-bottom: 30px;
}

.product-specs h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table th,
.specs-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.specs-table th {
    background-color: var(--secondary-color);
    font-weight: 600;
    color: var(--text-dark);
    width: 40%;
}

.specs-table td {
    color: var(--text-light);
}

/* ==========================================
   Inquiry Form
   ========================================== */
.inquiry-form {
    background-color: var(--secondary-color);
    padding: 30px;
    border-radius: 8px;
    margin-top: 30px;
}

.inquiry-form h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.1);
}

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

.btn-submit {
    background-color: var(--accent-color);
    color: var(--white);
    padding: 12px 40px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit:hover {
    background-color: var(--accent-dark);
}

/* ==========================================
   About Page
   ========================================== */
.about-page {
    padding: 60px 0;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-content h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.about-content p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: var(--text-light);
}

.about-content ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.about-content ul li {
    list-style: disc;
    margin-bottom: 10px;
    color: var(--text-light);
}

.certifications {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.cert-card {
    text-align: center;
    padding: 20px;
    background-color: var(--secondary-color);
    border-radius: 8px;
}

.cert-card img {
    width: 100px;
    height: 100px;
    margin: 0 auto 15px;
    object-fit contain;
}

/* ==========================================
   Contact Page
   ========================================== */
.contact-page {
    padding: 60px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.contact-info p {
    margin-bottom: 15px;
    color: var(--text-light);
}

.contact-info .info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 20px;
}

.contact-info .info-item .icon {
    color: var(--primary-color);
    font-size: 1.5rem;
    min-width: 30px;
}

/* ==========================================
   Blog Page
   ========================================== */
.blog-page {
    padding: 60px 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.blog-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
}

.blog-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.blog-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.blog-card .content {
    padding: 20px;
}

.blog-card .date {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.blog-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.blog-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    background-color: var(--text-dark);
    color: var(--white);
    padding: 60px 0 20px;
    margin-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--white);
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* ==========================================
   WhatsApp Float Button
   ========================================== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
    cursor: pointer;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
    color: var(--white);
}

/* ==========================================
   Related Products
   ========================================== */
.related-products {
    padding: 60px 0;
    background-color: var(--secondary-color);
}

.related-products h2 {
    text-align: center;
    margin-bottom: 40px;
}

/* ==========================================
   Pagination
   ========================================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination a {
    padding: 8px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--text-dark);
    transition: var(--transition);
}

.pagination a.active,
.pagination a:hover {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

/* ==========================================
   Responsive Design - Handled in responsive.css
   ========================================== */

/* ==========================================
   Utilities
   ========================================== */
.text-center {
    text-align: center;
}

.mt-40 {
    margin-top: 40px;
}

.mb-40 {
    margin-bottom: 40px;
}

.btn {
    display: inline-block;
    padding: 10px 30px;
    border-radius: 5px;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: inherit;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--white);
}

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

.btn-accent:hover {
    background-color: var(--accent-dark);
    color: var(--white);
}

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

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