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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans Thai', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h1 {
    color: #667eea;
    font-size: 24px;
    font-weight: bold;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #667eea;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #667eea;
    transition: width 0.3s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    display: flex;
    align-items: center;
    min-height: 80vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://tse-mm.bing.com/th?q=audio+equipment+background+pattern') no-repeat center/cover;
    opacity: 0.1;
}

.hero-content {
    flex: 1;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #fff, #ffd700);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.btn-primary,
.btn-secondary,
.btn-outline {
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    color: #333;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #667eea;
}

.btn-outline {
    background: transparent;
    color: #667eea;
    border: 2px solid #667eea;
}

.btn-outline:hover {
    background: #667eea;
    color: white;
}

.hero-image {
    flex: 1;
    text-align: center;
    z-index: 2;
    animation: fadeInRight 1s ease-out 0.3s both;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Company Introduction */
.company-intro {
    padding: 80px 0;
    background: white;
}

.company-intro h2 {
    text-align: center;
    margin-bottom: 50px;
    color: #333;
    font-size: 2.5rem;
}

.intro-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: center;
}

.intro-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
}

.intro-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.stat-item h3 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.stat-item p {
    font-size: 1rem;
    opacity: 0.9;
}

/* Featured Products */
.featured-products {
    padding: 80px 0;
    background: #f8f9fa;
}

.featured-products h2 {
    text-align: center;
    margin-bottom: 50px;
    color: #333;
    font-size: 2.5rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

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

.product-card h3 {
    padding: 20px;
    font-size: 1.3rem;
    color: #333;
}

.product-card p {
    padding: 0 20px;
    color: #666;
    margin-bottom: 20px;
}

.product-card .btn-outline {
    margin: 0 20px 20px;
    display: inline-block;
}

/* News Section */
.news-section {
    padding: 80px 0;
    background: white;
}

.news-section h2 {
    text-align: center;
    margin-bottom: 50px;
    color: #333;
    font-size: 2.5rem;
}

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

.news-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
}

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

.news-content {
    padding: 20px;
}

.news-content h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #333;
}

.news-content p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.news-date {
    color: #667eea;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Footer */
.footer {
    background: #2d3748;
    color: white;
    padding: 50px 0 20px;
}

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

.footer-section h3 {
    color: #ffd700;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.footer-section h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-section p {
    margin-bottom: 10px;
    line-height: 1.6;
}

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

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

.footer-section ul a {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul a:hover {
    color: #ffd700;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.social-links a:hover {
    transform: scale(1.2);
}

.footer-bottom {
    border-top: 1px solid #4a5568;
    padding-top: 20px;
    text-align: center;
    color: #a0aec0;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        flex-direction: column;
        text-align: center;
        padding: 100px 0 50px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .intro-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }

    .intro-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .stat-item {
        padding: 20px;
    }

    .stat-item h3 {
        font-size: 1.8rem;
    }

    .products-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .intro-stats {
        grid-template-columns: 1fr;
    }

    .company-intro h2,
    .featured-products h2,
    .news-section h2 {
        font-size: 2rem;
    }
}

/* Loading Animation */
.loading {
    opacity: 0;
    animation: fadeIn 0.5s ease-out 0.2s forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #5a67d8;
}