:root {
    --primary-color: #007BFF;
    --secondary-color: #0056b3;
    --accent-color: #28a745;
    --light-bg: #f8f9fa;
    --dark-text: #333;
    --light-text: #fff;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --border-radius: 10px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Kanit', 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    background: url('https://images.unsplash.com/photo-1508050919630-b135583b29ab?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center center fixed;
    background-size: cover;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(244, 244, 244, 0.88);
    z-index: -1;
}

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.language-switcher a {
    color: var(--light-text);
    text-decoration: none;
    padding: 0.3rem 0.6rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.3);
}

.language-switcher a:hover {
    background-color: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

.language-switcher a.active {
    background-color: rgba(255,255,255,0.3);
    font-weight: bold;
}

/* Header Styles */
header {
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.85), rgba(0, 86, 179, 0.85)), 
                url('https://images.unsplash.com/photo-1552465011-b4e21bf6e79a?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    color: var(--light-text);
    padding: 2rem 0;
    box-shadow: var(--shadow);
    position: relative;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    animation: fadeIn 1s ease-out;
}

/* Navigation */
nav {
    width: 100%;
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    gap: 1.5rem;
    padding: 0.8rem 0;
}

nav ul li a {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

nav ul li a:hover {
    background-color: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

/* Main Content */
main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 20px;
}

section {
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 2rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.6s ease-out forwards;
}

section:nth-child(1) { animation-delay: 0.1s; }
section:nth-child(2) { animation-delay: 0.3s; }
section:nth-child(3) { animation-delay: 0.5s; }

section h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

section:hover h2::after {
    width: 100px;
}

section h3 {
    color: var(--secondary-color);
    font-size: 1.5rem;
    margin: 1.5rem 0 1rem;
}

/* Service Cards */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.service-card {
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    background: url('https://cdn-icons-png.flaticon.com/512/2857/2857297.png') no-repeat;
    background-size: contain;
    opacity: 0.08;
    z-index: 0;
    transition: var(--transition);
}

.service-card:hover::after {
    bottom: -30px;
    right: -30px;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    position: relative;
    z-index: 1;
}

.service-card ul {
    list-style: none;
    position: relative;
    z-index: 1;
}

.service-card li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.8rem;
}

.service-card li::before {
    content: "•";
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-size: 1.5rem;
    line-height: 1;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.2rem;
    background-color: rgba(248, 249, 250, 0.9);
    border-radius: var(--border-radius);
    transition: var(--transition);
    backdrop-filter: blur(2px);
}

.contact-method:hover {
    background-color: rgba(233, 236, 239, 0.9);
    transform: translateX(5px) translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.contact-method i {
    font-size: 1.5rem;
    color: var(--primary-color);
    min-width: 30px;
    text-align: center;
    padding-top: 3px;
}

.social-media {
    margin-top: 2rem;
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.social-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.8rem;
    border-radius: var(--border-radius);
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-decoration: none;
    color: var(--dark-text);
}

.social-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.social-item img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

/* Highlight Box */
.highlight-box {
    background: rgba(248, 249, 250, 0.95) url('https://www.toptal.com/designers/subtlepatterns/uploads/retina_wood.png');
    background-blend-mode: overlay;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
    margin: 1.5rem 0;
    transition: var(--transition);
}

.highlight-box:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

/* Benefits List */
.benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    list-style: none;
}

.benefits-list li {
    padding: 0.8rem;
    background-color: rgba(248, 249, 250, 0.9);
    border-radius: var(--border-radius);
    position: relative;
    padding-left: 2.5rem;
    transition: var(--transition);
}

.benefits-list li:hover {
    transform: translateX(5px);
    background-color: rgba(233, 236, 239, 0.9);
}

.benefits-list li::before {
    content: "✓";
    color: var(--accent-color);
    position: absolute;
    left: 1rem;
    font-weight: bold;
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--light-text);
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 3rem;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1508050919630-b135583b29ab?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') center center;
    background-size: cover;
    opacity: 0.1;
    z-index: 0;
}

footer p {
    font-size: 1rem;
    position: relative;
    z-index: 1;
}

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

/* Responsive Adjustments */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .language-switcher {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    body {
        background-attachment: scroll;
    }
    
    .service-card::after {
        display: none;
    }
    
    header {
        background-position: 60% center;
        padding: 1.5rem 0;
    }
}