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

:root {
    --primary: #ff6b6b;
    --primary-dark: #ff5252;
    --secondary: #4ecdc4;
    --dark: #2c3e50;
    --light: #f8f9fa;
    --gray: #6c757d;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
    --shadow: 0 5px 20px rgba(0,0,0,0.1);
    --shadow-hover: 0 10px 30px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--light);
}

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

.navbar {
    background: #8e44ad;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.05);
}

.logo i {
    font-size: 1.8rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: white;
    margin: 5px 0;
    transition: var(--transition);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.nav-menu li a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu li a:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

.user-welcome {
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255,255,255,0.2);
    border-radius: 25px;
}

.logout-btn {
    background: rgba(220,53,69,0.8);
}

.logout-btn:hover {
    background: var(--danger);
}

.slider-container {
    position: relative;
    max-width: 100%;
    height: 500px;
    overflow: hidden;
    margin-bottom: 3rem;
}

.slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.slide.active {
    opacity: 1;
}

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

.slide-caption {
    position: absolute;
    bottom: 20%;
    left: 10%;
    right: 10%;
    background: linear-gradient(90deg, rgba(0,0,0,0.7), rgba(0,0,0,0.3));
    color: white;
    padding: 2rem;
    border-radius: 15px;
    animation: slideUp 0.8s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.slide-caption h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.slide-caption p {
    font-size: 1.1rem;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    padding: 1rem;
    cursor: pointer;
    border-radius: 50%;
    transition: var(--transition);
    z-index: 10;
}

.slider-btn:hover {
    background: var(--primary);
    transform: translateY(-50%) scale(1.1);
}

.prev {
    left: 20px;
}

.next {
    right: 20px;
}

.slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--primary);
    width: 25px;
    border-radius: 10px;
}

section {
    padding: 4rem 2rem;
}

section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark);
    position: relative;
    animation: fadeIn 0.8s ease;
}

section h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    animation: fadeIn 0.8s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.service-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

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

.service-card:hover .service-image img {
    transform: scale(1.1);
}

.service-content {
    padding: 1.5rem;
    text-align: center;
}

.service-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.service-content p {
    color: var(--gray);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.price {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
    margin: 0.5rem 0;
}

.duration {
    color: var(--gray);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255,107,107,0.4);
}

/* ===== МАСТЕРА ===== */
.masters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.master-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

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

.master-photo {
    width: 100%;
    height: 250px;
    overflow: hidden;
    position: relative;
}

.master-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.master-card:hover .master-photo img {
    transform: scale(1.05);
}

.master-card h3 {
    margin: 1rem 0 0.5rem;
    color: var(--dark);
}

.master-card p {
    color: var(--gray);
    margin: 0.5rem 0;
    padding: 0 1rem;
}

.master-card .specialization {
    color: var(--primary);
    font-weight: 500;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    animation: fadeIn 0.8s ease;
}

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

.feature-card i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

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

.feature-card p {
    color: var(--gray);
}

.auth-page, .appointment-page, .appointments-page {
    min-height: calc(100vh - 200px);
    padding: 4rem 2rem;
}

.auth-container, .appointment-form {
    max-width: 500px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    animation: fadeIn 0.8s ease;
}

.auth-container h2, .appointment-page h2, .appointments-page h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--dark);
}

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

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

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255,107,107,0.1);
}

.form-group input.error {
    border-color: var(--danger);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: var(--gray);
    font-size: 0.85rem;
}

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

.radio-group {
    display: flex;
    gap: 1rem;
    padding: 0.5rem 0;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.radio-group input {
    width: auto;
}

.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    animation: slideIn 0.5s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.alert.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

footer {
    background: var(--dark);
    color: white;
    margin-top: 3rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section h3, .footer-section h4 {
    margin-bottom: 1rem;
}

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

.social-links a {
    color: white;
    font-size: 1.5rem;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--primary);
    transform: translateY(-3px);
}

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

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        width: 100%;
        flex-direction: column;
        padding: 1rem 0;
    }
    
    .nav-menu.active {
        display: flex;
        animation: slideDown 0.5s ease;
    }
    
    .slider-container {
        height: 300px;
    }
    
    .slide-caption {
        bottom: 10%;
        left: 5%;
        right: 5%;
        padding: 1rem;
    }
    
    .slide-caption h2 {
        font-size: 1.2rem;
    }
    
    .slide-caption p {
        font-size: 0.9rem;
    }
    
    section {
        padding: 2rem 1rem;
    }
    
    section h2 {
        font-size: 1.8rem;
    }
    
    .services-grid, .masters-grid, .features-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .auth-container, .appointment-form {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .slider-container {
        height: 250px;
    }
    
    .logo {
        font-size: 1.2rem;
    }
}