:root {
    --white: #ffffff;
    --bg: #f8fafc;
    --blue: #2563eb;
    --blue-light: #dbeafe;
    --blue-deep: #1e40af;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(37, 99, 235, 0.08);
    --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Inter, system-ui, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
}

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

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-deep); }

.container {
    width: min(1140px, 92vw);
    margin-inline: auto;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: var(--header-h);
}

.logo {
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.04em;
    color: var(--text);
    text-decoration: none;
}

.main-nav {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.main-nav a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
}

.main-nav a:hover,
.main-nav a.active { color: var(--blue); }

.header-utils {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.search-wrap {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.75rem;
    background: var(--bg);
    border-radius: 999px;
    border: 1px solid var(--border);
}

.search-wrap input {
    border: none;
    background: transparent;
    font-size: 0.85rem;
    width: 120px;
    outline: none;
}

.util-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--white);
    cursor: pointer;
    color: var(--text);
}

.cart-count {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    font-size: 0.65rem;
    font-weight: 700;
    line-height: 18px;
    text-align: center;
    background: var(--blue);
    color: var(--white);
    border-radius: 999px;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    border: none;
    background: transparent;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.65rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

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

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

.btn-outline {
    background: transparent;
    color: var(--blue);
    border-color: var(--blue);
}

.btn-outline:hover {
    background: var(--blue-light);
}

.btn-lg { padding: 0.85rem 1.5rem; font-size: 1rem; }
.btn-block { width: 100%; }

/* Hero */
.hero {
    position: relative;
    min-height: min(85vh, 720px);
    display: flex;
    align-items: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
}

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

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.55) 45%, rgba(219, 234, 254, 0.35) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 4rem 0;
    max-width: 560px;
}

.hero-eyebrow {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--blue);
    margin: 0 0 0.75rem;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.15;
    margin: 0 0 1rem;
    color: var(--text);
}

.hero-lead {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin: 0 0 1.75rem;
}

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

/* Trust */
.trust-bar {
    background: var(--bg);
    border-block: 1px solid var(--border);
    padding: 2rem 0;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.trust-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.trust-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    background: var(--blue-light);
    color: var(--blue);
    border-radius: 10px;
}

.trust-item h3 {
    margin: 0 0 0.2rem;
    font-size: 0.95rem;
}

.trust-item p {
    margin: 0;
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* Sections */
.section {
    padding: 4rem 0;
}

.section-kicker {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--blue);
    margin: 0 0 0.5rem;
}

.section-kicker.center { text-align: center; }

.section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin: 0 0 0.5rem;
    text-align: center;
}

.section-title.left { text-align: left; }

.section-desc {
    text-align: center;
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 auto 2rem;
}

.section-head { margin-bottom: 2rem; }

.section-head-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.cart-inline { margin: 0; font-size: 0.9rem; color: var(--text-muted); }

/* Categories */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.category-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow 0.2s, border-color 0.2s;
}

.category-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--blue-light);
}

.category-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.category-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--bg);
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.category-card:hover .category-image img { transform: scale(1.03); }

.category-card h3 {
    margin: 1rem 1rem 0.25rem;
    font-size: 1.1rem;
}

.category-card p {
    margin: 0 1rem 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Products */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.product-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--white);
}

.product-image {
    position: relative;
    aspect-ratio: 4/5;
    background: var(--bg);
}

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

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 0.25rem 0.6rem;
    font-size: 0.7rem;
    font-weight: 700;
    background: var(--blue);
    color: var(--white);
    border-radius: 4px;
}

.product-body {
    padding: 1rem 1.1rem 1.25rem;
}

.product-body h3 {
    margin: 0 0 0.35rem;
    font-size: 1rem;
}

.product-desc {
    margin: 0 0 0.5rem;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.product-price {
    margin: 0 0 0.85rem;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--blue-deep);
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

.gallery-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 4/3;
}

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

.gallery-caption {
    position: absolute;
    inset: auto 0 0;
    padding: 1rem;
    background: linear-gradient(transparent, rgba(15, 23, 42, 0.75));
    color: var(--white);
}

.gallery-caption h3 {
    margin: 0 0 0.2rem;
    font-size: 0.95rem;
}

.gallery-caption p {
    margin: 0;
    font-size: 0.78rem;
    opacity: 0.9;
}

/* Brands */
.brands-section {
    padding: 2.5rem 0;
    background: var(--bg);
    border-block: 1px solid var(--border);
}

.brands-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem 2.5rem;
    margin-top: 1rem;
}

.brand-item {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    opacity: 0.7;
}

/* Promos */
.promos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.promo-banner {
    display: block;
    padding: 2rem;
    border-radius: var(--radius);
    text-decoration: none;
    transition: transform 0.2s;
}

.promo-banner:hover { transform: translateY(-2px); }

.promo-blue {
    background: linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 100%);
    color: var(--white);
}

.promo-light {
    background: var(--blue-light);
    color: var(--text);
    border: 1px solid var(--border);
}

.promo-banner h3 {
    margin: 0 0 0.5rem;
    font-size: 1.25rem;
}

.promo-banner p {
    margin: 0 0 1rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

.promo-cta {
    font-weight: 600;
    font-size: 0.9rem;
}

.promo-blue .promo-cta { color: var(--white); }
.promo-light .promo-cta { color: var(--blue); }

/* Planner */
.planner-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: start;
}

.planner-facts {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
}

.planner-facts li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.card-panel {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.planner-calc fieldset {
    border: none;
    margin: 0 0 1.25rem;
    padding: 0;
}

.planner-calc legend {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.planner-dims {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.planner-calc label span {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.planner-calc input[type="number"],
.planner-calc input[type="range"] {
    width: 100%;
}

.planner-calc input[type="number"] {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
}

.planner-area {
    margin: 0.5rem 0 0;
    font-size: 0.9rem;
}

.planner-items label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    cursor: pointer;
}

.planner-result {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.planner-result-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin: 0 0 0.35rem;
}

.planner-result-fit,
.planner-result-cost {
    margin: 0 0 0.35rem;
    font-weight: 600;
}

.planner-result-fit.ok { color: #059669; }
.planner-result-fit.warn { color: #d97706; }
.planner-result-fit.bad { color: #dc2626; }

.planner-result-note {
    margin: 0.5rem 0 0;
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* Quiz */
.quiz { max-width: 640px; margin-inline: auto; }

.quiz-progress {
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.quiz-progress-bar {
    height: 100%;
    width: 25%;
    background: var(--blue);
    transition: width 0.3s;
}

.quiz-step-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.quiz-step { display: none; }
.quiz-step.active { display: block; }

.quiz-step h3 {
    font-size: 1.1rem;
    margin: 0 0 1rem;
}

.quiz-options label {
    display: block;
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.quiz-options label:has(input:checked) {
    border-color: var(--blue);
    background: var(--blue-light);
}

.quiz-nav {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.quiz-result-product {
    font-weight: 700;
    color: var(--blue-deep);
    margin: 0.75rem 0 1rem;
}

.quiz-result-step .btn { margin-right: 0.5rem; margin-top: 0.5rem; }

/* Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.blog-card {
    padding: 1.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--white);
}

.blog-card time {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.blog-card h3 {
    margin: 0.5rem 0;
    font-size: 1.1rem;
}

.blog-card p {
    margin: 0 0 1rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.blog-card footer {
    font-size: 0.85rem;
}

/* Footer */
.site-footer {
    background: var(--text);
    color: #cbd5e1;
    padding: 3rem 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr repeat(3, 1fr);
    gap: 2rem;
    padding-bottom: 2rem;
}

.footer-brand strong {
    display: block;
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    font-size: 0.85rem;
    margin: 0 0 1.25rem;
}

.order-form input {
    display: block;
    width: 100%;
    margin-bottom: 0.5rem;
    padding: 0.55rem 0.75rem;
    border: 1px solid #334155;
    border-radius: 8px;
    background: #1e293b;
    color: var(--white);
    font-size: 0.9rem;
}

.order-form h4 {
    color: var(--white);
    margin: 0 0 0.75rem;
    font-size: 0.95rem;
}

.order-cart-hint {
    font-size: 0.82rem;
    margin: 0.5rem 0 0.75rem;
}

.site-footer h4 {
    color: var(--white);
    margin: 0 0 0.75rem;
    font-size: 0.9rem;
}

.site-footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-footer li {
    margin-bottom: 0.4rem;
    font-size: 0.85rem;
}

.site-footer a { color: #93c5fd; }

.footer-requisites {
    margin-top: 1rem !important;
    opacity: 0.7;
    font-size: 0.75rem !important;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding: 1rem 0;
}

.footer-bottom-inner p {
    margin: 0;
    font-size: 0.8rem;
}

/* Cart drawer */
.cart-drawer {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(15, 23, 42, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s, visibility 0.25s;
}

.cart-drawer.open {
    opacity: 1;
    visibility: visible;
}

.cart-drawer-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: min(360px, 100%);
    height: 100%;
    background: var(--white);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.12);
    transform: translateX(100%);
    transition: transform 0.3s;
}

.cart-drawer.open .cart-drawer-panel {
    transform: translateX(0);
}

.cart-drawer-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.cart-drawer-head h3 { margin: 0; }

.cart-close {
    border: none;
    background: transparent;
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
}

.cart-list {
    list-style: none;
    padding: 0;
    margin: 0;
    flex: 1;
    overflow-y: auto;
}

.cart-list li {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.cart-list .empty {
    color: var(--text-muted);
    font-style: italic;
}

.cart-drawer-total {
    margin: 1rem 0;
    font-size: 1rem;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%) translateY(120%);
    padding: 0.75rem 1.25rem;
    background: var(--text);
    color: var(--white);
    border-radius: 8px;
    font-size: 0.9rem;
    z-index: 300;
    transition: transform 0.3s;
}

.toast.show { transform: translateX(-50%) translateY(0); }

/* Responsive */
@media (max-width: 900px) {
    .main-nav {
        display: none;
        position: absolute;
        top: var(--header-h);
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--white);
        padding: 1rem;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow);
    }

    .main-nav.open { display: flex; }

    .menu-toggle { display: flex; }

    .search-wrap { display: none; }

    .planner-grid { grid-template-columns: 1fr; }

    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
    .footer-grid { grid-template-columns: 1fr; }
}