:root {
    --primary-color: #4CAF50;
    --secondary-color: #FF9800;
    --text-dark: #333333;
    --text-light: #666666;
    --bg-light: #f5f5f5;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

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

header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

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

nav a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.language-selector {
    position: relative;
}

.language-selector select {
    padding: 5px 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--bg-white);
    cursor: pointer;
}

.hero {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, #2D7D46 0%, #45a049 100%);
    color: white;
    border-radius: 20px;
    margin-bottom: 50px;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    opacity: 0.95;
}

.generator-section {
    background-color: var(--bg-white);
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 50px;
    box-shadow: var(--shadow);
}

.input-group {
    text-align: center;
    margin-bottom: 40px;
}

.input-group label {
    display: block;
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.input-group input {
    padding: 12px 20px;
    font-size: 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    width: 150px;
    margin-right: 15px;
    transition: border-color 0.3s;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 30px;
    font-size: 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    font-weight: 600;
}

.btn-primary:hover {
    background-color: #45a049;
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
}

.loading {
    text-align: center;
    padding: 40px;
}

.loading.hidden {
    display: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.animal-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.animal-card {
    background-color: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeIn 0.5s ease-in;
}

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

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

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

.animal-card h3 {
    padding: 15px;
    font-size: 18px;
    color: var(--text-dark);
    text-align: center;
    text-transform: capitalize;
}

.features {
    margin-top: 80px;
    text-align: center;
}

.features h2 {
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--text-dark);
}

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

.feature-card {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

footer {
    background-color: var(--text-dark);
    color: white;
    margin-top: 80px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-section h3 {
    margin-bottom: 20px;
    color: white;
}

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

.footer-section a {
    color: #cccccc;
    text-decoration: none;
    line-height: 2;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.footer-section p {
    color: #cccccc;
    line-height: 1.8;
}

.footer-bottom {
    background-color: #222;
    text-align: center;
    padding: 20px;
    color: #999;
}

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

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}

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

/* New Sections Styles */
.how-it-works {
    margin: 80px 0;
}

.how-it-works h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--text-dark);
}

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

.step {
    text-align: center;
    padding: 30px;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    position: relative;
}

.step-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    line-height: 50px;
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
}

.step h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.step p {
    color: var(--text-light);
    line-height: 1.6;
}

.animal-categories {
    margin: 80px 0;
    background: var(--bg-light);
    padding: 60px 20px;
    border-radius: 20px;
}

.animal-categories h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.animal-categories > p {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

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

.category-item {
    background: var(--bg-white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.category-item h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 20px;
}

.category-item p {
    color: var(--text-light);
    line-height: 1.6;
}

.benefits {
    margin: 80px 0;
}

.benefits h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--text-dark);
}

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

.benefit-card {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.benefit-card h3 {
    color: var(--text-dark);
    margin-bottom: 15px;
    font-size: 22px;
}

.benefit-card p {
    color: var(--text-light);
    line-height: 1.6;
}

.faq {
    margin: 80px 0;
    background: var(--bg-white);
    padding: 60px 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.faq h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 40px;
    color: var(--text-dark);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item h3 {
    color: var(--text-dark);
    margin-bottom: 15px;
    font-size: 20px;
}

.faq-item p {
    color: var(--text-light);
    line-height: 1.6;
}

.technical {
    margin: 80px 0;
    text-align: center;
}

.technical h2 {
    font-size: 36px;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.technical p {
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-light);
    line-height: 1.6;
}

.language-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    z-index: 1000;
    max-width: 400px;
    text-align: center;
}

.language-popup.hidden {
    display: none;
}

.language-popup h3 {
    margin-bottom: 20px;
    color: var(--text-dark);
}

.language-popup p {
    margin-bottom: 25px;
    color: var(--text-light);
}

.language-popup-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.language-popup button {
    padding: 10px 25px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    transition: opacity 0.3s;
}

.language-popup button.primary {
    background: var(--primary-color);
    color: white;
}

.language-popup button.secondary {
    background: var(--border-color);
    color: var(--text-dark);
}

.language-popup button:hover {
    opacity: 0.9;
}