/* Основные стили и переменные */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #06b6d4;
    --accent-color: #10b981;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-accent: #f0f9ff;
    --border-color: #e5e7eb;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Сброс и базовые стили */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

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

/* Заголовки */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.5em;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

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

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

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

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

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

.full-width {
    width: 100%;
    justify-content: center;
}

/* Заголовки секций */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Навигация */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo i {
    font-size: 1.5rem;
    color: var(--accent-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
    border-radius: 1px;
}

.nav-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn-appointment {
    background: linear-gradient(135deg, var(--accent-color) 0%, #059669 100%);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-login {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: 0.3s;
    border-radius: 2px;
}

/* Главный баннер */
.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, var(--bg-accent) 0%, #e0f2fe 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-text h1 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.medical-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
    max-width: 300px;
    border: 1px solid var(--border-color);
}

.card-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-color) 0%, #059669 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.card-icon i {
    font-size: 2rem;
    color: white;
}

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

.medical-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.card-action {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--bg-accent);
    border-radius: var(--radius-md);
    color: var(--primary-color);
    font-weight: 600;
}

/* Преимущества */
.advantages {
    padding: 4rem 0;
    background: white;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.advantage-card {
    text-align: center;
    padding: 2rem 1rem;
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

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

.advantage-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.advantage-icon i {
    font-size: 2rem;
    color: white;
}

.advantage-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.advantage-card p {
    color: var(--text-secondary);
}

/* Услуги */
.services {
    padding: 4rem 0;
    background: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.service-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.service-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.service-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.service-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

.service-actions {
    display: flex;
    gap: 0.75rem;
}

.btn-book {
    background: linear-gradient(135deg, var(--accent-color) 0%, #059669 100%);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 1;
}

.btn-book:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-info {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.services-cta {
    text-align: center;
}

/* Врачи */
.doctors {
    padding: 4rem 0;
    background: white;
}

.doctors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.doctor-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.doctor-avatar {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--bg-accent) 0%, #e0f2fe 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    border: 3px solid var(--border-color);
}

.doctor-avatar i {
    font-size: 3rem;
    color: var(--primary-color);
}

.doctor-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.doctor-specialty {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 1rem;
}

.doctor-experience {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.doctor-office {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-accent);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.doctor-actions {
    display: flex;
    gap: 0.75rem;
}

/* О нас */
.about {
    padding: 4rem 0;
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.about-features {
    margin-bottom: 2rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.feature i {
    color: var(--accent-color);
    font-size: 1.25rem;
}

.about-stats {
    display: flex;
    gap: 2rem;
}

.about-stat {
    text-align: center;
}

.about-stat .number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.about-stat .label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 400px;
    height: 300px;
    background: linear-gradient(135deg, var(--bg-accent) 0%, #e0f2fe 100%);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--border-color);
}

.image-placeholder i {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.image-placeholder p {
    color: var(--text-secondary);
    text-align: center;
}

/* Контакты */
.contacts {
    padding: 4rem 0;
    background: white;
}

.contacts-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contacts-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.contact-details h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--text-secondary);
    margin: 0;
}

.contacts-form {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contacts-form h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

/* Формы */
.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

/* Футер */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-logo i {
    font-size: 1.5rem;
    color: var(--accent-color);
}

.footer-section p {
    color: #d1d5db;
    margin-bottom: 1.5rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-section ul li a:hover {
    color: var(--accent-color);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.2s ease;
}

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

.footer-contact {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: #d1d5db;
}

.footer-contact i {
    color: var(--accent-color);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid #374151;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #9ca3af;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* Модальные окна */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content.small {
    max-width: 400px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    color: var(--text-primary);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-body {
    padding: 2rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

.login-tabs {
    display: flex;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    padding: 1rem;
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.login-footer a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contacts-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .about-stats {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-menu,
    .nav-actions {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero {
        padding: 6rem 0 3rem;
        text-align: center;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .advantages-grid,
    .services-grid,
    .doctors-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .modal-content {
        width: 95%;
        margin: 1rem;
    }
    
    .modal-header,
    .modal-body {
        padding: 1rem;
    }
    
    .modal-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 5rem 0 2rem;
    }
    
    .section-header {
        margin-bottom: 2rem;
    }
    
    .advantage-card,
    .service-card,
    .doctor-card {
        padding: 1.5rem;
    }
    
    .medical-card {
        padding: 1.5rem;
    }
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Плавная прокрутка */
html {
    scroll-behavior: smooth;
}

/* Скрытие скроллбара в вебкит браузерах */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

/* Дополнительные утилиты */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.hidden { display: none; }
.visible { display: block; }