/* 
=========================================
    Ветеринарный Диагностический Центр
    МРТ и КТ - Стили
=========================================
*/

/* ============================================
   1. БАЗОВЫЕ СТИЛИ И ПЕРЕМЕННЫЕ
============================================ */

:root {
    /* Теплая цветовая палитра */
    --color-primary: #E67E50;          /* Теплый коралловый */
    --color-primary-dark: #D6673F;     /* Темнее коралловый */
    --color-primary-light: #F4A984;    /* Светлый коралловый */
    --color-secondary: #5B9AA0;        /* Приглушенный бирюзовый */
    --color-accent: #F9B233;           /* Теплый янтарный */
    
    /* Нейтральные цвета */
    --color-white: #FFFFFF;
    --color-bg-light: #FFF9F5;         /* Очень светлый персиковый */
    --color-bg-gray: #F5F5F5;
    --color-text-dark: #2C3E50;
    --color-text-gray: #6C757D;
    --color-text-light: #95A5A6;
    --color-border: #E8E8E8;
    
    /* Состояния */
    --color-success: #5FB381;
    --color-warning: #F9B233;
    --color-error: #E74C3C;
    
    /* Типографика */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Montserrat', sans-serif;
    
    /* Размеры */
    --container-width: 1200px;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --transition: all 0.3s ease;
    
    /* Тени */
    --shadow-sm: 0 2px 8px rgba(230, 126, 80, 0.08);
    --shadow-md: 0 4px 16px rgba(230, 126, 80, 0.12);
    --shadow-lg: 0 8px 32px rgba(230, 126, 80, 0.16);
}

/* ============================================
   2. ОБЩИЕ СТИЛИ
============================================ */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text-dark);
    background-color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Типографика */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text-dark);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
    color: var(--color-text-gray);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    font-family: var(--font-primary);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

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

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

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

/* Секции */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 16px;
    color: var(--color-text-dark);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-text-gray);
    margin-bottom: 48px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   3. ХЕДЕР И НАВИГАЦИЯ
============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 24px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-dark);
}

.logo-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-gray);
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--color-text-dark);
    font-weight: 500;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--color-text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ============================================
   4. ГЛАВНЫЙ ЭКРАН (HERO)
============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(230, 126, 80, 0.08) 0%, 
        rgba(91, 154, 160, 0.08) 100%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800"><path d="M0,400 Q300,200 600,400 T1200,400 L1200,800 L0,800 Z" fill="%23FFF9F5"/></svg>');
    background-size: cover;
    background-position: center;
    z-index: -1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(230, 126, 80, 0.05) 0%, transparent 50%);
}

.hero-content {
    max-width: 800px;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-gray);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-features {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.hero-feature i {
    color: var(--color-primary);
    font-size: 24px;
}

.hero-feature span {
    font-weight: 500;
    color: var(--color-text-dark);
}

/* ============================================
   5. ОБОРУДОВАНИЕ
============================================ */

.equipment {
    background: var(--color-bg-light);
}

.equipment-grid {
    display: grid;
    gap: 48px;
}

.equipment-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.equipment-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.equipment-card:nth-child(even) {
    direction: rtl;
}

.equipment-card:nth-child(even) > * {
    direction: ltr;
}

.equipment-image {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.equipment-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: var(--transition);
}

.equipment-card:hover .equipment-image img {
    transform: scale(1.05);
}

.equipment-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--color-accent);
    color: var(--color-white);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.875rem;
}

.equipment-info h3 {
    color: var(--color-primary);
    margin-bottom: 16px;
}

.equipment-info p {
    margin-bottom: 24px;
    line-height: 1.7;
}

.equipment-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.equipment-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
}

.equipment-features i {
    color: var(--color-success);
    font-size: 18px;
}

/* ============================================
   6. О ЦЕНТРЕ
============================================ */

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-text h2 {
    text-align: left;
    margin-bottom: 24px;
}

.about-text p {
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    padding: 24px;
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.stat-label {
    color: var(--color-text-gray);
    font-size: 0.9375rem;
}

.about-image {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================
   7. ПРЕИМУЩЕСТВА
============================================ */

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

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.advantage-card {
    padding: 32px;
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 2px solid transparent;
}

.advantage-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.advantage-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 32px;
    margin-bottom: 20px;
}

.advantage-card h3 {
    margin-bottom: 12px;
    color: var(--color-text-dark);
}

.advantage-card p {
    line-height: 1.7;
}

/* ============================================
   8. ПОКАЗАНИЯ
============================================ */

.indications {
    background: var(--color-bg-light);
}

.indications-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.tab-btn {
    padding: 12px 32px;
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: var(--color-text-dark);
}

.tab-btn:hover {
    border-color: var(--color-primary);
}

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.indications-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.indication-card {
    background: var(--color-white);
    padding: 32px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.indication-icon {
    width: 60px;
    height: 60px;
    background: var(--color-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 28px;
    margin-bottom: 20px;
}

.indication-card h3 {
    margin-bottom: 16px;
    color: var(--color-text-dark);
}

.indication-card ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.indication-card li {
    padding-left: 24px;
    position: relative;
    color: var(--color-text-gray);
    line-height: 1.6;
}

.indication-card li::before {
    content: '•';
    position: absolute;
    left: 8px;
    color: var(--color-primary);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Симптомы */
.symptoms-list {
    background: var(--color-white);
    padding: 40px;
    border-radius: var(--border-radius-lg);
}

.symptom-category h3 {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
    color: var(--color-primary);
}

.symptom-category h3 i {
    font-size: 28px;
}

.symptoms-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.symptom-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.symptom-item:hover {
    background: var(--color-primary-light);
    color: var(--color-white);
}

.symptom-item i {
    color: var(--color-success);
    font-size: 20px;
    margin-top: 2px;
    flex-shrink: 0;
}

.symptom-item:hover i {
    color: var(--color-white);
}

.symptom-item span {
    line-height: 1.5;
}

/* ============================================
   9. УСЛУГИ
============================================ */

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}

.service-card {
    background: var(--color-bg-light);
    padding: 32px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--color-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 32px;
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 12px;
    color: var(--color-text-dark);
}

.service-card p {
    margin-bottom: 20px;
    flex-grow: 1;
    line-height: 1.7;
}

.service-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    padding-top: 16px;
    border-top: 2px solid var(--color-border);
}

.services-note {
    background: var(--color-accent);
    color: var(--color-white);
    padding: 24px;
    border-radius: var(--border-radius);
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.services-note i {
    font-size: 24px;
    flex-shrink: 0;
}

.services-note p {
    color: var(--color-white);
    margin: 0;
}

/* ============================================
   10. ПОДГОТОВКА К ИССЛЕДОВАНИЮ
============================================ */

.preparation {
    background: var(--color-bg-light);
}

.preparation-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.preparation-card {
    background: var(--color-white);
    padding: 32px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.preparation-number {
    position: absolute;
    top: -20px;
    left: 32px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.preparation-card h3 {
    margin: 20px 0 16px;
    color: var(--color-text-dark);
}

.preparation-card ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.preparation-card li {
    padding-left: 24px;
    position: relative;
    color: var(--color-text-gray);
    line-height: 1.6;
}

.preparation-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: bold;
}

/* ============================================
   11. ВРАЧИ
============================================ */

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

.doctors-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.doctor-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 24px;
    background: var(--color-bg-light);
    padding: 24px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.doctor-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.doctor-image {
    border-radius: var(--border-radius);
    overflow: hidden;
}

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

.doctor-info h3 {
    color: var(--color-text-dark);
    margin-bottom: 8px;
}

.doctor-position {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 8px;
}

.doctor-experience {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    margin-bottom: 12px;
}

.doctor-description {
    line-height: 1.7;
}

/* ============================================
   12. FAQ
============================================ */

.faq {
    background: var(--color-bg-light);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-white);
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-dark);
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-question i {
    color: var(--color-primary);
    font-size: 18px;
    transition: var(--transition);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 24px 24px;
    line-height: 1.8;
}

/* ============================================
   13. КОНТАКТЫ
============================================ */

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

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-card {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 20px;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.contact-details p {
    margin-bottom: 0;
    font-size: 1.0625rem;
}

.contact-details a {
    color: var(--color-primary);
    font-weight: 600;
}

.contact-details a:hover {
    text-decoration: underline;
}

.contact-note {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: 4px;
}

.contact-buttons {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}

.contact-map {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* ============================================
   14. ФУТЕР
============================================ */

.footer {
    background: var(--color-text-dark);
    color: var(--color-white);
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
}

.footer-section h4 {
    color: var(--color-white);
    margin-bottom: 20px;
    font-size: 1.125rem;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 24px;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--color-primary);
    transform: translateY(-2px);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-primary);
    padding-left: 8px;
}

.footer-contacts li {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-contacts i {
    color: var(--color-primary);
    width: 20px;
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-contacts a {
    color: rgba(255, 255, 255, 0.9);
}

.footer-contacts a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 8px;
}

.footer-note {
    font-size: 0.875rem;
}

/* ============================================
   15. КНОПКА "НАВЕРХ"
============================================ */

.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-4px);
}

/* ============================================
   16. АДАПТИВНОСТЬ
============================================ */

@media (max-width: 1200px) {
    :root {
        --container-width: 960px;
    }
    
    .advantages-grid,
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    :root {
        --container-width: 720px;
    }
    
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .equipment-card,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .equipment-card:nth-child(even) {
        direction: ltr;
    }
    
    .indications-grid {
        grid-template-columns: 1fr;
    }
    
    .doctors-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --container-width: 540px;
    }
    
    section {
        padding: 60px 0;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-features {
        flex-direction: column;
    }
    
    .advantages-grid,
    .services-grid,
    .preparation-content,
    .symptoms-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .doctor-card {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .doctor-image img {
        height: 300px;
    }
}

@media (max-width: 576px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding-top: 80px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .equipment-card,
    .indication-card,
    .service-card,
    .preparation-card {
        padding: 24px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .contact-buttons {
        flex-direction: column;
    }
    
    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* ============================================
   17. АНИМАЦИИ
============================================ */

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.hero-feature {
    animation: fadeIn 0.6s ease forwards;
}

.hero-feature:nth-child(1) {
    animation-delay: 0.1s;
}

.hero-feature:nth-child(2) {
    animation-delay: 0.2s;
}

.hero-feature:nth-child(3) {
    animation-delay: 0.3s;
}

/* ============================================
   18. МОБИЛЬНОЕ МЕНЮ
============================================ */

@media (max-width: 992px) {
    .nav {
        position: fixed;
        top: 82px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 82px);
        background: var(--color-white);
        flex-direction: column;
        padding: 32px;
        gap: 0;
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav.active {
        left: 0;
    }
    
    .nav-link {
        padding: 16px 0;
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-link::after {
        display: none;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
}