/* Design System & Variables */
:root {
    --primary-color: #2E7D32; /* Deep Nature Green */
    --primary-light: #4CAF50;
    --secondary-color: #F4A261; /* Warm Earth */
    --text-dark: #1F2937;
    --text-light: #F9FAFB;
    --bg-light: #FDFBF7;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: 'Outfit', 'Sarabun', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* Typography */
h1, h2, h3 {
    font-weight: 800;
    line-height: 1.2;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    transition: var(--transition);
}

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

/* Language Switcher */
.lang-switcher {
    display: flex;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 50px;
    padding: 4px;
    margin-left: 15px;
    gap: 4px;
}

.lang-btn {
    padding: 6px 14px;
    border-radius: 50px;
    color: var(--text-dark) !important;
    text-decoration: none !important;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.lang-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}

.lang-btn.active {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    color: var(--primary-color) !important;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light) !important;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary-color) !important;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(46, 125, 50, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
    border: 2px solid var(--text-light);
}

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

.btn-text {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    margin-top: 15px;
    transition: var(--transition);
}

.btn-text:hover {
    transform: translateX(5px);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.6)), url('images/hero_home.jpg') center/cover;
    display: flex;
    align-items: center;
    padding: 0 10%;
}

.hero-content {
    max-width: 800px;
    color: var(--text-light);
    animation: fadeIn 1s ease-out forwards;
}

.hero h1 {
    font-size: 5rem;
    margin-bottom: 20px;
    letter-spacing: -2px;
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: 40px;
    font-weight: 300;
    opacity: 0.9;
}

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

/* General Sections */
section {
    padding: 100px 10%;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.section-title p {
    font-size: 1.2rem;
    color: #6B7280;
}

/* About */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.about-text p {
    font-size: 1.1rem;
    color: #4B5563;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.about-image img:hover {
    transform: scale(1.02);
}

/* Cards / Elephants */
.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.05);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.card-content {
    padding: 30px;
}

.card-content h3 {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.card-content .age {
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--text-light);
    text-align: center;
    padding: 100px 20px 30px;
}

.footer-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.footer-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.footer-content .email {
    margin-top: 30px;
    font-size: 1rem;
    opacity: 0.7;
}

.copyright {
    margin-top: 60px;
    font-size: 0.9rem;
    opacity: 0.5;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 3rem; }
    .about-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
}