/* ========================================
   Company Website Styles
   Based on INVITOP Design
   ======================================== */

/* CSS Variables */
:root {
    --primary-color: #0066cc;
    --primary-dark: #003366;
    --secondary-color: #1a1a2e;
    --accent-color: #ff6600;
    --text-dark: #333333;
    --text-light: #666666;
    --text-white: #ffffff;
    --bg-light: #f5f5f5;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', 'Malgun Gothic', 'Meiryo', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

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;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-dark);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--text-white);
    transform: translateY(-2px);
}

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

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

.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* Top Bar */
.top-bar {
    background-color: var(--secondary-color);
    color: var(--text-white);
    font-size: 0.85rem;
    padding: 8px 0;
}

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

.contact-info {
    display: flex;
    gap: 20px;
}

.contact-info a {
    color: var(--text-white);
    display: flex;
    align-items: center;
    gap: 5px;
}

.contact-info a:hover {
    color: var(--primary-color);
}

.language-switch {
    display: flex;
    gap: 15px;
}

.language-switch a {
    color: var(--text-white);
    opacity: 0.8;
}

.language-switch a:hover,
.language-switch a.active {
    opacity: 1;
    color: var(--accent-color);
}

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

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 50px;
}

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

.main-nav ul {
    display: flex;
    gap: 30px;
}

.main-nav a {
    color: var(--text-dark);
    font-weight: 500;
    padding: 10px 0;
    position: relative;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary-color);
}

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

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    border-bottom: 1px solid var(--border-color);
}

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

.dropdown-menu a {
    display: block;
    padding: 12px 20px;
    color: var(--text-dark);
}

.dropdown-menu a:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
}

/* Search Box */
.search-box {
    display: flex;
    border: 1px solid var(--border-color);
    border-radius: 25px;
    overflow: hidden;
}

.search-box input {
    border: none;
    padding: 8px 15px;
    width: 200px;
    outline: none;
}

.search-box button {
    background-color: var(--primary-color);
    color: var(--text-white);
    border: none;
    padding: 8px 15px;
    cursor: pointer;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    height: 500px;
    overflow: hidden;
}

.hero-slider {
    height: 100%;
}

.slide {
    height: 100%;
    display: flex;
    align-items: center;
    color: var(--text-white);
    background-size: cover;
    background-position: center;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
}

.hero-content h1 {
    color: var(--text-white);
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.slider-nav {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 2;
}

.slider-nav button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--text-white);
    background: transparent;
    cursor: pointer;
}

.slider-nav button.active {
    background-color: var(--text-white);
}

/* Sections */
.section {
    padding: 80px 0;
}

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

.section-header h2 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.section-header p {
    color: var(--text-light);
    font-size: 1.1rem;
}

.bg-light {
    background-color: var(--bg-light);
}

/* Categories */
.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.category-card {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.category-card:hover {
    transform: translateY(-10px);
}

.category-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.category-icon i {
    font-size: 2rem;
    color: var(--text-white);
}

.category-card h3 {
    margin-bottom: 15px;
}

.category-card ul li {
    padding: 5px 0;
}

.category-card ul li a {
    color: var(--text-light);
    font-size: 0.9rem;
}

.category-card ul li a:hover {
    color: var(--primary-color);
}

/* Featured Products */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.product-card {
    background-color: var(--bg-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-image {
    position: relative;
    height: 200px;
    background-color: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.product-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--accent-color);
    color: var(--text-white);
    padding: 5px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 3px;
}

.product-info {
    padding: 20px;
    text-align: center;
}

.product-info h3 {
    margin-bottom: 5px;
}

.product-info .model {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

/* Placeholder */
.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #f0f0f0, #e0e0e0);
    color: #999;
}

.placeholder i {
    font-size: 3rem;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-content h2 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.about-content h3 {
    color: var(--text-light);
    font-weight: 400;
    margin-bottom: 20px;
}

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

.about-features {
    margin: 30px 0;
}

.about-features .feature {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.about-features .feature i {
    color: var(--primary-color);
}

.about-image {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* News Section */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background-color: var(--bg-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-10px);
}

.news-image {
    height: 200px;
    overflow: hidden;
}

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

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-content {
    padding: 20px;
}

.news-date {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-light);
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.news-content h3 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.news-content p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-weight: 500;
}

.read-more i {
    transition: var(--transition);
}

.read-more:hover i {
    transform: translateX(5px);
}

/* Why Choose Us */
.why-us-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.why-us-card {
    text-align: center;
    padding: 30px;
    background-color: var(--bg-white);
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.why-us-card:hover {
    transform: translateY(-10px);
}

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

.why-us-card h3 {
    margin-bottom: 15px;
}

.why-us-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background-color: var(--secondary-color);
    color: var(--text-white);
    padding-top: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    padding-bottom: 40px;
}

.footer-col h4 {
    color: var(--text-white);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-col ul li a:hover {
    color: var(--text-white);
}

.footer-col ul li i {
    margin-right: 8px;
    width: 16px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    transition: var(--transition);
}

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

.footer-bottom {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    opacity: 0.8;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
}

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

/* Mobile Responsive */
@media (max-width: 992px) {
    .category-grid,
    .product-grid,
    .why-us-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .main-nav {
        display: none;
    }
    
    .search-box {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .hero {
        height: 400px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .category-grid,
    .product-grid,
    .why-us-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .top-bar .container {
        flex-direction: column;
        gap: 10px;
    }
    
    .contact-info {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* Page Title */
.page-title {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: 60px 0;
    color: var(--text-white);
    text-align: center;
}

.page-title h1 {
    color: var(--text-white);
    margin-bottom: 10px;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 10px;
    font-size: 0.9rem;
    opacity: 0.8;
}

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

.breadcrumb span {
    color: rgba(255, 255, 255, 0.6);
}

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

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

.contact-form {
    background-color: var(--bg-white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.contact-info-card {
    background-color: var(--bg-light);
    padding: 40px;
    border-radius: 10px;
}

.contact-info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-info-item i {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.contact-info-item h4 {
    margin-bottom: 5px;
}

.contact-info-item p {
    color: var(--text-light);
}

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

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

/* Scroll to top */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.scroll-top.active {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background-color: var(--primary-dark);
}