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

:root {
    --primary-blue: #1976d2;
    --light-blue: #e3f2fd;
    --dark-blue: #0d47a1;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-700: #616161;
    --gray-900: #212121;
    --success: #4caf50;
    --error: #f44336;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background: var(--white);
    overflow-x: hidden;
}

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

/* ===== COOKIE BANNER ===== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    padding: 20px;
    z-index: 10000;
    transform: translateY(100%);
    transition: var(--transition);
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.cookie-content p {
    flex: 1;
    margin: 0;
    font-size: 14px;
}

.cookie-content a {
    color: var(--primary-blue);
    text-decoration: underline;
}

.cookie-buttons {
    display: flex;
    gap: 10px;
}

/* ===== HEADER ===== */
.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-blue);
    text-decoration: none;
}

.logo-icon {
    font-size: 32px;
}

.nav {
    display: flex;
    gap: 25px;
    align-items: center;
}

.nav-link {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: var(--transition);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.cart-icon {
    position: relative;
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition);
}

.cart-icon:hover {
    transform: scale(1.1);
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--error);
    color: var(--white);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--primary-blue);
}

/* ===== BUTTONS ===== */
.btn-primary,
.btn-secondary,
.btn-cta {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--dark-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: var(--light-blue);
    transform: translateY(-2px);
}

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

.btn-cta:hover {
    background: var(--dark-blue);
    transform: scale(1.05);
}

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

.btn-add-cart {
    width: 100%;
    padding: 10px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-add-cart:hover {
    background: var(--dark-blue);
    transform: translateY(-2px);
}

/* ===== HERO SECTION ===== */
.hero {
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '💧';
    position: absolute;
    font-size: 300px;
    opacity: 0.05;
    top: -50px;
    right: -50px;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.8s ease;
}

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

.hero-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--gray-700);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== BENEFITS SECTION ===== */
.benefits {
    padding: 80px 0;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 50px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.benefit-card {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

.benefit-card:nth-child(1) { animation-delay: 0.1s; }
.benefit-card:nth-child(2) { animation-delay: 0.2s; }
.benefit-card:nth-child(3) { animation-delay: 0.3s; }
.benefit-card:nth-child(4) { animation-delay: 0.4s; }
.benefit-card:nth-child(5) { animation-delay: 0.5s; }
.benefit-card:nth-child(6) { animation-delay: 0.6s; }

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

.benefit-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.benefit-card h3 {
    font-size: 20px;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.benefit-card p {
    color: var(--gray-700);
    font-size: 14px;
}

/* ===== CATALOG SECTION ===== */
.catalog {
    padding: 80px 0;
    background: var(--gray-50);
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.product-image {
    width: 100%;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    background: var(--white);
    border-radius: 8px;
    padding: 15px;
    box-sizing: border-box;
}

.product-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
}

.product-card h3 {
    font-size: 18px;
    color: var(--gray-900);
    margin-bottom: 10px;
}

.product-description {
    color: var(--gray-700);
    font-size: 14px;
    margin-bottom: 15px;
}

.product-price {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

/* ===== DELIVERY SECTION ===== */
.delivery {
    padding: 80px 0;
    background: var(--white);
}

.delivery-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}

.map-container {
    background: var(--gray-50);
    padding: 20px;
    border-radius: 12px;
}

.map {
    width: 100%;
    height: 300px;
    background: var(--light-blue);
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.moscow-map {
    width: 100%;
    height: 100%;
}

.map-controls {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.manual-address {
    display: flex;
    gap: 10px;
}

.location-status {
    font-size: 14px;
    color: var(--gray-700);
    text-align: center;
}

.delivery-info h3 {
    font-size: 24px;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.delivery-info ul {
    list-style: none;
    padding: 0;
}

.delivery-info li {
    padding: 10px 0;
    font-size: 16px;
    color: var(--gray-700);
}

/* ===== REVIEWS SECTION ===== */
.reviews {
    padding: 80px 0;
    background: var(--gray-50);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.review-card {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
}

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

.review-avatar {
    font-size: 48px;
    margin-bottom: 10px;
}

.review-card h4 {
    font-size: 18px;
    color: var(--gray-900);
    margin-bottom: 10px;
}

.review-rating {
    font-size: 16px;
    margin-bottom: 15px;
}

.review-card p {
    color: var(--gray-700);
    font-size: 14px;
    line-height: 1.6;
}

/* ===== FAQ SECTION ===== */
.faq {
    padding: 80px 0;
    background: var(--white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 15px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    padding: 20px;
    background: var(--white);
    border: none;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 24px;
    color: var(--primary-blue);
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--light-blue);
}

.faq-item.active .faq-question::after {
    content: '−';
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: var(--gray-50);
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 20px;
    color: var(--gray-700);
    margin: 0;
}

/* ===== CONTACTS SECTION ===== */
.contacts {
    padding: 80px 0;
    background: var(--gray-50);
}

.contacts-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.contact-item strong {
    color: var(--primary-blue);
    font-size: 16px;
}

.contact-item a,
.contact-item span {
    color: var(--gray-700);
    text-decoration: none;
    font-size: 16px;
}

.contact-item a:hover {
    color: var(--primary-blue);
}

.contact-form {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.contact-form h3 {
    font-size: 24px;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.input-field {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 2px solid var(--gray-300);
    border-radius: 6px;
    font-size: 14px;
    transition: var(--transition);
}

.input-field:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--gray-700);
}

.checkbox-label input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-label a {
    color: var(--primary-blue);
}

/* ===== LEGAL SECTIONS ===== */
.legal-section {
    padding: 80px 0;
    background: var(--white);
}

.legal-section:nth-child(even) {
    background: var(--gray-50);
}

.legal-section h2 {
    font-size: 36px;
    color: var(--primary-blue);
    margin-bottom: 30px;
}

.legal-content h3 {
    font-size: 24px;
    color: var(--gray-900);
    margin-top: 30px;
    margin-bottom: 15px;
}

.legal-content p,
.legal-content li {
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 15px;
}

.legal-content ul,
.legal-content ol {
    margin-left: 20px;
    margin-bottom: 20px;
}

.legal-content a {
    color: var(--primary-blue);
    text-decoration: underline;
}

.legal-content strong {
    color: var(--gray-900);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: 40px 0 20px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
}

.footer-nav {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-nav a {
    color: var(--gray-300);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.footer-nav a:hover {
    color: var(--white);
}

.footer-copyright {
    color: var(--gray-300);
    font-size: 14px;
    text-align: center;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        pointer-events: none;
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .section-title {
        font-size: 28px;
    }

    .delivery-content,
    .contacts-content {
        grid-template-columns: 1fr;
    }

    .benefits-grid,
    .catalog-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }

    .cookie-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-nav {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
    }

    .hero-title {
        font-size: 24px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .btn-large {
        padding: 12px 24px;
        font-size: 16px;
    }

    .section-title {
        font-size: 24px;
    }

    .benefits,
    .catalog,
    .delivery,
    .reviews,
    .faq,
    .contacts,
    .legal-section {
        padding: 40px 0;
    }
}

/* ===== ANIMATIONS ===== */
.fade-in {
    animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.6s ease;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== ACCESSIBILITY ===== */
:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}