/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --white: #ffffff;
    --off-white: #f8f9fa;
    --light-gray: #f0f2f5;
    --mid-gray: #e8e8e8;
    --text-gray: #868686;
    --dark-gray: #333333;
    --text-primary: #1a1a1a;
    --text-secondary: #555555;
    --accent-blue: #667eea;
    --accent-purple: #764ba2;
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 12px 60px rgba(0,0,0,0.15);
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--white);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: var(--transition);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.02);
}

.logo-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: 10px;
    color: white;
}

.logo-icon svg {
    width: 22px;
    height: 22px;
}

.logo-img {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    object-fit: cover;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-name {
    font-size: 18px;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-sub {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-gray);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

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

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

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ===== HERO ===== */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, var(--white) 0%, var(--off-white) 100%);
    overflow: hidden;
}

.hero-inner {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
    max-width: 560px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(102, 126, 234, 0.08);
    border: 1px solid rgba(102, 126, 234, 0.15);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-blue);
    margin-bottom: 24px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 17px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    background: var(--white);
    color: var(--text-primary);
    border: 1px solid var(--mid-gray);
}

.btn-secondary:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 28px;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 13px;
    color: var(--text-gray);
    font-weight: 500;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    max-width: 450px;
}

.hero-phone {
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.1));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

.hero-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--accent-gradient);
    border-radius: 50%;
    opacity: 0.1;
    filter: blur(60px);
    z-index: 1;
}

/* ===== SECTION COMMON ===== */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.section-desc {
    font-size: 16px;
    color: var(--text-gray);
    font-weight: 400;
}

/* ===== SERVICES ===== */
.services {
    padding: 80px 0;
    background: var(--white);
}

.services-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
}

.service-card {
    padding: 32px 24px;
    background: var(--off-white);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 260px;
}

.service-card:hover {
    background: var(--white);
    border-color: var(--mid-gray);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.service-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.service-card p {
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-gray);
}

/* ===== CATALOG ===== */
.catalog {
    padding: 80px 0;
    background: var(--off-white);
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.product-card {
    background: var(--white);
    border: 1px solid rgba(0,0,0,0.04);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(102, 126, 234, 0.2);
}

.product-image {
    width: 100%;
    aspect-ratio: 3/4;
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--off-white) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.product-image svg {
    width: 70%;
    height: 70%;
    opacity: 0.9;
    transition: var(--transition);
}

.product-card:hover .product-image svg {
    transform: scale(1.05);
}

.product-info {
    padding: 16px;
}

.product-model {
    font-size: 11px;
    font-weight: 600;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.product-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.product-specs {
    font-size: 12px;
    color: var(--text-gray);
    margin-bottom: 12px;
}

.product-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-price {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
}

.product-price-old {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-gray);
    text-decoration: line-through;
    margin-left: 6px;
}

.product-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent-gradient);
    border: none;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.product-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* ===== CONTACTS ===== */
.contacts {
    padding: 80px 0;
    background: var(--white);
}

.contacts-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
}

.contact-card {
    padding: 32px;
    background: var(--off-white);
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 280px;
}

.contact-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.contact-icon {
    font-size: 36px;
    margin-bottom: 12px;
}

.contact-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.contact-card p {
    font-size: 14px;
    color: var(--accent-blue);
    font-weight: 600;
}

/* ===== FOOTER ===== */
.footer {
    padding: 40px 0;
    background: var(--off-white);
    border-top: 1px solid var(--mid-gray);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-logo svg {
    width: 24px;
    height: 24px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-brand p {
    font-size: 13px;
    color: var(--text-gray);
    margin-top: 4px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-blue);
}

.footer-copy {
    font-size: 12px;
    color: var(--text-gray);
}

/* ===== MODAL ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 440px;
    width: 90%;
    position: relative;
    box-shadow: var(--shadow-xl);
    transform: translateY(20px) scale(0.95);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--off-white);
    border-radius: 50%;
    font-size: 20px;
    color: var(--text-gray);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

.modal-header {
    text-align: center;
    margin-bottom: 32px;
}

.modal-header h2 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.modal-header p {
    font-size: 14px;
    color: var(--text-gray);
}

.login-methods {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn-google,
.btn-yandex {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px 24px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: inherit;
}

.btn-google {
    background: var(--white);
    color: var(--text-primary);
    border: 1px solid var(--mid-gray);
}

.btn-google:hover {
    background: var(--off-white);
    border-color: #4285f4;
    box-shadow: 0 2px 10px rgba(66, 133, 244, 0.15);
}

.btn-yandex {
    background: #FC3F1D;
    color: white;
}

.btn-yandex:hover {
    background: #e8350f;
    box-shadow: 0 2px 10px rgba(252, 63, 29, 0.3);
}

.order-info {
    text-align: center;
}

.order-phone {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--off-white);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}

.order-phone-icon {
    font-size: 32px;
}

.order-phone-text {
    text-align: left;
}

.order-phone-label {
    display: block;
    font-size: 12px;
    color: var(--text-gray);
    margin-bottom: 2px;
}

.order-phone-number {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    transition: var(--transition);
}

.order-phone-number:hover {
    color: var(--accent-blue);
}

.order-note {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.order-alternative {
    padding-top: 20px;
    border-top: 1px solid var(--mid-gray);
}

.order-alternative p {
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: 12px;
}

/* ===== PRODUCT PAGE ===== */
.product-page {
    padding-top: 72px;
    min-height: 100vh;
    background: var(--off-white);
}

.product-page-header {
    background: var(--white);
    border-bottom: 1px solid var(--mid-gray);
    padding: 16px 0;
}

.product-page-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    background: none;
    border: none;
    font-family: inherit;
}

.back-btn:hover {
    color: var(--accent-blue);
}

.product-page-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.product-gallery {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    position: sticky;
    top: 120px;
}

.product-gallery svg {
    width: 100%;
    max-width: 300px;
    filter: drop-shadow(0 10px 30px rgba(0,0,0,0.08));
}

/* ===== IMAGE CAROUSEL ===== */
.image-carousel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.main-image {
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--off-white) 100%);
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 3/4;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.main-image img:hover {
    transform: scale(1.02);
}

.thumbnails {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.thumbnail {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    opacity: 0.6;
}

.thumbnail:hover {
    opacity: 0.8;
    transform: scale(1.05);
}

.thumbnail.active {
    border-color: var(--accent-blue);
    opacity: 1;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
}

.product-details {
    padding-top: 10px;
}

.product-details .product-model {
    font-size: 13px;
    margin-bottom: 8px;
}

.product-details h1 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.product-details .product-specs {
    font-size: 15px;
    margin-bottom: 24px;
}

.product-details .product-price {
    font-size: 32px;
    margin-bottom: 32px;
}

.product-features {
    margin-bottom: 32px;
}

.product-features h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}

.feature-item svg {
    width: 20px;
    height: 20px;
    color: #2ed573;
    flex-shrink: 0;
}

.btn-order {
    width: 100%;
    padding: 18px 32px;
    font-size: 16px;
    border-radius: var(--radius-sm);
    background: var(--accent-gradient);
    color: white;
    border: none;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-order:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.5);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .catalog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-card,
    .contact-card {
        width: 240px;
    }
    
    .hero-inner {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .product-page-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .product-gallery {
        position: static;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .services-grid,
    .contacts-grid {
        flex-direction: column;
        align-items: center;
    }
    
    .service-card,
    .contact-card {
        width: 100%;
        max-width: 320px;
    }
    
    .catalog-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .stat-number {
        font-size: 22px;
    }
}

@media (max-width: 480px) {
    .catalog-grid {
        grid-template-columns: 1fr;
        max-width: 320px;
        margin: 0 auto;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}