/* Mobile-first адаптивный дизайн для сайта приюта кошек */

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --text-dark: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --success: #28a745;
    --border-radius: 12px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px 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(--white);
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    transition: opacity 0.3s;
}

.nav-links a:hover {
    opacity: 0.8;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 4rem 1rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.section {
    padding: 4rem 1rem;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--text-dark);
}

/* About Section */
.about {
    background: var(--bg-light);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
}

/* Donations Section */
.donations {
    background: var(--white);
}

.donation-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.amount-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.amount-btn {
    padding: 1rem;
    background: var(--white);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    cursor: pointer;
    transition: all 0.3s;
}

.amount-btn:hover,
.amount-btn.active {
    background: var(--primary-color);
    color: var(--white);
}

.custom-amount {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.payment-methods {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.payment-btn {
    flex: 1;
    min-width: 120px;
    padding: 0.75rem;
    background: var(--white);
    border: 2px solid #ddd;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
}

.payment-btn:hover,
.payment-btn.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: var(--white);
}

/* News Section */
.news {
    background: var(--bg-light);
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.news-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

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

.news-card-content {
    padding: 1.5rem;
}

.news-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.news-card p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.news-date {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Contacts Section */
.contacts {
    background: var(--white);
}

.contact-info {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-item {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.contact-item strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.social-link {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s;
    font-weight: 600;
    font-size: 0.9rem;
}

.social-link:hover {
    transform: scale(1.1);
    background: var(--secondary-color);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.social-link:active {
    transform: scale(0.95);
}

/* Footer */
footer {
    background: var(--text-dark);
    color: var(--white);
    text-align: center;
    padding: 2rem 1rem;
}

/* Cats Page */
.cats-page {
    padding: 2rem 1rem;
}

.filters {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-group label {
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.filter-group select,
.filter-group input {
    padding: 0.5rem;
    border: 2px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
}

.cats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.cat-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    cursor: pointer;
}

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

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

.cat-card-content {
    padding: 1.5rem;
}

.cat-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.cat-info {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.cat-status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.status-available {
    background: #d4edda;
    color: #155724;
}

.status-reserved {
    background: #fff3cd;
    color: #856404;
}

.status-adopted {
    background: #d1ecf1;
    color: #0c5460;
}

.cat-description {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Responsive Design */
@media (min-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .hero h1 {
        font-size: 3rem;
    }
    
    .news-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .cats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .filters-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Loading */
.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-light);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-light);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}