:root {
    --color-bg: #ffffff;
    --color-bg-gray: #f8f8f8;
    --color-bg-dark: #1a1a1a;
    --color-text: #1d1d1f;
    --color-text-secondary: #6e6e73;
    --color-text-light: #86868b;
    --color-accent: #1f1610;
    --color-primary: #c45c26;
    --color-primary-hover: #a84c1f;
    --color-primary-soft: rgba(196, 92, 38, 0.12);
    --color-primary-glow: rgba(196, 92, 38, 0.28);
    --color-success: #34c759;
    --color-danger: #ff3b30;
    --color-border: #e8e8ed;
    --color-shadow: rgba(0, 0, 0, 0.08);
    --color-shadow-lg: rgba(0, 0, 0, 0.12);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --shadow-sm: 0 1px 3px var(--color-shadow);
    --shadow-md: 0 4px 20px var(--color-shadow);
    --shadow-lg: 0 8px 40px var(--color-shadow-lg);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --header-height: 72px;
    --container-max: 1280px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

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

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.container {
    width: 100%; max-width: var(--container-max);
    margin: 0 auto; padding: 0 1.25rem;
}

.container--narrow { max-width: 800px; }

/* Header */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow var(--transition);
}

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

.header__inner {
    display: flex; align-items: center; justify-content: space-between;
    height: var(--header-height); gap: 1.5rem;
}

.header__logo {
    display: flex; align-items: center; gap: 0.5rem;
    font-weight: 700; font-size: 1.25rem; flex-shrink: 0;
}

.header__logo-icon { width: 28px; height: 28px; }
.header__logo-accent { color: var(--color-primary); }

.header__nav-list {
    display: flex; gap: 2rem;
}

.header__nav-link {
    font-size: 0.875rem; font-weight: 500; color: var(--color-text-secondary);
    position: relative; padding: 0.25rem 0;
}

.header__nav-link:hover { color: var(--color-text); }

.header__nav-link::after {
    content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
    background: var(--color-accent); transition: width var(--transition);
}

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

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

.header__search {
    position: relative; display: flex; align-items: center;
}

.header__search-input {
    width: 220px; padding: 0.5rem 2.25rem 0.5rem 1rem;
    border: 1px solid var(--color-border); border-radius: var(--radius-full);
    font-size: 0.875rem; background: var(--color-bg-gray);
    transition: all var(--transition); outline: none;
}

.header__search-input:focus {
    width: 280px; border-color: var(--color-primary);
    background: var(--color-bg); box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.header__search-icon {
    position: absolute; right: 0.75rem; width: 18px; height: 18px;
    color: var(--color-text-light); pointer-events: none;
}

.header__search-results {
    position: absolute; top: calc(100% + 8px); left: 0; right: 0;
    background: var(--color-bg); border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg); border: 1px solid var(--color-border);
    max-height: 400px; overflow-y: auto; z-index: 100;
}

.search-result {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.75rem 1rem; transition: background var(--transition);
}

.search-result:hover { background: var(--color-bg-gray); }

.search-result img { width: 48px; height: 36px; object-fit: contain; border-radius: 4px; }
.search-result__info { flex: 1; min-width: 0; }
.search-result__name { font-size: 0.8125rem; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.search-result__price { font-size: 0.75rem; color: var(--color-primary); font-weight: 600; }

.header__icon-btn {
    position: relative; display: flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: var(--radius-full);
    color: var(--color-text); transition: background var(--transition);
}

.header__icon-btn:hover { background: var(--color-bg-gray); }
.header__icon-btn svg { width: 22px; height: 22px; }

.header__cart-count {
    position: absolute; top: 2px; right: 2px;
    min-width: 18px; height: 18px; padding: 0 5px;
    background: var(--color-primary); color: #fff;
    font-size: 0.6875rem; font-weight: 700;
    border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
    animation: scaleIn 0.3s ease;
}

.header__hamburger {
    display: none; flex-direction: column; gap: 5px;
    width: 40px; height: 40px; align-items: center; justify-content: center;
}

.header__hamburger span {
    display: block; width: 22px; height: 2px;
    background: var(--color-text); transition: all var(--transition);
}

.header__hamburger.is-active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.header__hamburger.is-active span:nth-child(2) { opacity: 0; }
.header__hamburger.is-active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-nav {
    position: fixed; top: var(--header-height); left: 0; right: 0; bottom: 0;
    background: var(--color-bg); z-index: 999; padding: 1.5rem;
    transform: translateX(100%); transition: transform var(--transition);
    overflow-y: auto; -webkit-overflow-scrolling: touch;
    box-shadow: var(--shadow-lg);
}

.mobile-nav[hidden] { display: none !important; }

.mobile-nav.is-open { transform: translateX(0); }

.mobile-nav__list { display: flex; flex-direction: column; gap: 0; }

.mobile-nav__list a {
    display: block; padding: 1rem 0; font-size: 1.125rem; font-weight: 500;
    border-bottom: 1px solid var(--color-border);
}

/* Main */
#main-content { padding-top: var(--header-height); min-height: 60vh; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.75rem 1.5rem; font-size: 0.9375rem; font-weight: 600;
    border-radius: var(--radius-full); transition: all var(--transition);
    position: relative; overflow: hidden; white-space: nowrap;
}

.btn::after {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
    opacity: 0; transition: opacity 0.4s;
    pointer-events: none;
}

.btn:active::after { opacity: 1; }

.btn--primary {
    background: var(--color-primary); color: #fff;
    box-shadow: 0 2px 8px var(--color-primary-glow);
}

.btn--primary:hover {
    background: var(--color-primary-hover); transform: translateY(-1px);
    box-shadow: 0 4px 16px var(--color-primary-glow);
}

.btn--dark { background: var(--color-accent); color: #fff; }
.btn--dark:hover { background: #333; transform: translateY(-1px); }

.btn--outline {
    background: transparent; color: var(--color-text);
    border: 1.5px solid var(--color-border);
}

.btn--outline:hover { border-color: var(--color-text); background: var(--color-bg-gray); }

.btn--white { background: #fff; color: var(--color-text); }
.btn--white:hover { background: #f0f0f0; transform: translateY(-1px); }

.btn--success { background: var(--color-success); color: #fff; }
.btn--success:hover { background: #2db84d; }

.btn--lg { padding: 1rem 2rem; font-size: 1rem; }
.btn--block { width: 100%; }
.btn--sm { padding: 0.5rem 1rem; font-size: 0.8125rem; }

.btn svg { width: 18px; height: 18px; }

.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* Hero */
.hero {
    position: relative; min-height: 85vh; display: flex;
    align-items: center; overflow: hidden;
}

.hero__bg {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    transform: scale(1.05); transition: transform 8s ease;
}

.hero:hover .hero__bg { transform: scale(1); }

.hero__overlay {
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.3) 50%, rgba(0,0,0,0.5) 100%);
}

.hero__content {
    position: relative; z-index: 2; color: #fff;
    max-width: 700px; padding: 4rem 0;
}

.hero__eyebrow {
    font-size: 0.875rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.15em; opacity: 0.8; margin-bottom: 1rem;
}

.hero__title {
    font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 700;
    line-height: 1.1; margin-bottom: 1.5rem; letter-spacing: -0.02em;
}

.hero__subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem); opacity: 0.85;
    margin-bottom: 2.5rem; line-height: 1.7; max-width: 540px;
}

.hero__scroll-indicator {
    position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
    z-index: 2;
}

.hero__scroll-indicator span {
    display: block; width: 24px; height: 40px;
    border: 2px solid rgba(255,255,255,0.4); border-radius: 12px;
    position: relative;
}

.hero__scroll-indicator span::after {
    content: ''; position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
    width: 4px; height: 8px; background: rgba(255,255,255,0.6);
    border-radius: 2px; animation: scrollDown 2s infinite;
}

/* Sections */
.section { padding: 5rem 0; }
.section--gray { background: var(--color-bg-gray); }

.section__header {
    display: flex; align-items: baseline; justify-content: space-between;
    margin-bottom: 2.5rem;
}

.section__title {
    font-size: clamp(1.75rem, 3vw, 2.25rem); font-weight: 700;
    letter-spacing: -0.02em;
}

.section__title--center { text-align: center; margin-bottom: 3rem; }

.section__subtitle {
    text-align: center; color: var(--color-text-secondary);
    margin: -2rem 0 2.5rem;
}

.section__link {
    font-size: 0.9375rem; font-weight: 500; color: var(--color-primary);
    transition: gap var(--transition);
}

.section__link:hover { text-decoration: underline; }

.page-header {
    padding: 3rem 0 2rem; background: var(--color-bg-gray);
    border-bottom: 1px solid var(--color-border);
}

.page-header__title {
    font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 700;
    letter-spacing: -0.02em;
}

.page-header__subtitle { color: var(--color-text-secondary); margin-top: 0.5rem; }

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* Product Card */
.product-card {
    background: var(--color-bg); border-radius: var(--radius-lg);
    border: 1px solid var(--color-border); overflow: hidden;
    transition: all var(--transition); position: relative;
    display: flex; flex-direction: column;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.product-card__link {
    display: block;
    color: inherit;
    text-decoration: none;
    flex: 1;
    cursor: pointer;
}

.product-card__link:hover .product-card__name { color: var(--color-primary); }

.product-card__image-wrap {
    position: relative; padding: 1.5rem; background: var(--color-bg-gray);
    aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}

.product-card__image {
    max-height: 100%; object-fit: contain; width: 100%;
    transition: transform 0.5s ease;
}

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

.product-card__badge {
    position: absolute; top: 12px; left: 12px; z-index: 2;
    background: var(--color-danger); color: #fff;
    font-size: 0.75rem; font-weight: 700;
    padding: 0.25rem 0.625rem; border-radius: var(--radius-full);
}

.product-card__badge--new { background: var(--color-primary); left: auto; right: 12px; }

.product-card__body { padding: 1.25rem; }

.product-card__brand {
    font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.05em; color: var(--color-text-light);
}

.product-card__name {
    font-size: 0.9375rem; font-weight: 600; margin: 0.375rem 0 0.75rem;
    line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2;
    -webkit-box-orient: vertical; overflow: hidden;
    transition: color var(--transition);
}

.product-card__specs {
    display: flex; flex-wrap: wrap; gap: 0.375rem; margin-bottom: 0.75rem;
}

.product-card__specs li {
    font-size: 0.6875rem; padding: 0.2rem 0.5rem;
    background: var(--color-bg-gray); border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
}

.product-card__rating {
    display: flex; align-items: center; gap: 0.375rem;
    margin-bottom: 0.75rem; font-size: 0.8125rem;
}

.product-card__rating-value { font-weight: 600; }
.product-card__reviews { color: var(--color-text-light); }

.product-card__availability {
    display: flex; align-items: center; gap: 0.75rem;
    margin-bottom: 0.75rem; font-size: 0.8125rem;
}

.product-card__delivery { color: var(--color-success); font-weight: 500; }

.product-card__pricing {
    display: flex; align-items: baseline; flex-wrap: wrap; gap: 0.5rem;
    margin-bottom: 1rem;
}

.product-card__price {
    font-size: 1.25rem; font-weight: 700; color: var(--color-text);
}

.product-card__old-price {
    font-size: 0.875rem; color: var(--color-text-light);
    text-decoration: line-through;
}

.product-card__installment {
    font-size: 0.75rem; color: var(--color-text-secondary); width: 100%;
}

.product-card__actions {
    display: flex; flex-direction: column; gap: 0.5rem;
    padding: 0 1.25rem 1.25rem;
    position: relative; z-index: 2;
}

/* Stars */
.stars { display: flex; gap: 2px; }
.star { width: 14px; height: 14px; }
.star--full { fill: #ffb800; stroke: #ffb800; }
.star--half { fill: url(#half); stroke: #ffb800; }
.star--empty { fill: none; stroke: #ddd; }

/* Status */
.status {
    font-size: 0.75rem; font-weight: 600; padding: 0.2rem 0.625rem;
    border-radius: var(--radius-full);
}

.status--available { background: rgba(52,199,89,0.12); color: var(--color-success); }
.status--unavailable { background: rgba(255,59,48,0.12); color: var(--color-danger); }

/* Features */
.features__grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem;
}

.feature-card {
    padding: 2rem; border-radius: var(--radius-lg);
    background: var(--color-bg); border: 1px solid var(--color-border);
    transition: all var(--transition); text-align: center;
}

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

.feature-card__icon {
    width: 56px; height: 56px; margin: 0 auto 1.25rem;
    background: var(--color-bg-gray); border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
}

.feature-card__icon svg { width: 28px; height: 28px; color: var(--color-primary); }
.feature-card__title { font-size: 1.0625rem; font-weight: 600; margin-bottom: 0.5rem; }
.feature-card__text { font-size: 0.875rem; color: var(--color-text-secondary); line-height: 1.6; }

/* CTA Banner */
.cta-banner__inner {
    background: linear-gradient(135deg, #1a1a1a 0%, #333 100%);
    border-radius: var(--radius-xl); padding: 4rem;
    text-align: center; color: #fff;
}

.cta-banner__title { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 700; margin-bottom: 1rem; }
.cta-banner__text { font-size: 1.0625rem; opacity: 0.8; margin-bottom: 2rem; max-width: 500px; margin-left: auto; margin-right: auto; }

/* Contact Preview */
.contact-preview__grid {
    max-width: 640px;
}

.contact-preview__list { margin: 2rem 0; }

.contact-preview__list li {
    display: flex; align-items: center; gap: 1rem;
    padding: 0.75rem 0; font-size: 0.9375rem;
}

.contact-preview__list svg { width: 20px; height: 20px; color: var(--color-primary); flex-shrink: 0; }
.contact-preview__list a:hover { color: var(--color-primary); }

/* Catalog */
.catalog__layout { display: grid; grid-template-columns: 280px 1fr; gap: 2rem; }

.catalog__toolbar {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 1.5rem; gap: 1rem;
}

.catalog__filter-toggle { display: none; }

.select {
    padding: 0.625rem 2rem 0.625rem 1rem; border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); font-size: 0.875rem; background: var(--color-bg);
    appearance: none; cursor: pointer; outline: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 0.75rem center;
}

.select:focus { border-color: var(--color-primary); }

.catalog__empty { text-align: center; padding: 4rem 0; color: var(--color-text-secondary); }
.catalog__empty p { margin-bottom: 1.5rem; font-size: 1.125rem; }

/* Filters */
.filters {
    background: var(--color-bg); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 1.5rem;
    position: sticky; top: calc(var(--header-height) + 1rem);
}

.filters__header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 1.5rem;
}

.filters__title { font-size: 1.125rem; font-weight: 700; }
.filters__close { display: none; font-size: 1.5rem; color: var(--color-text-secondary); }

.filter-group { margin-bottom: 1.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--color-border); }
.filter-group:last-of-type { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.filter-group__title {
    font-size: 0.8125rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.05em; color: var(--color-text-secondary); margin-bottom: 0.75rem;
}

.filter-group__range { display: flex; align-items: center; gap: 0.5rem; }

.checkbox-label {
    display: flex; align-items: center; gap: 0.625rem;
    padding: 0.375rem 0; font-size: 0.875rem; cursor: pointer;
    transition: color var(--transition);
}

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

.checkbox-label input[type="checkbox"],
.checkbox-label input[type="radio"] {
    width: 18px; height: 18px; accent-color: var(--color-primary); cursor: pointer;
}

.filters__actions { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 1.5rem; }

.filters-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.5);
    z-index: 998; opacity: 0; transition: opacity var(--transition);
    pointer-events: none;
}

.filters-overlay.is-visible { opacity: 1; pointer-events: auto; }

/* Product Detail */
.breadcrumb {
    display: flex; align-items: center; gap: 0.5rem;
    font-size: 0.8125rem; color: var(--color-text-light);
    padding: 1.5rem 0;
}

.breadcrumb a:hover { color: var(--color-primary); }

.product-detail__layout {
    display: grid; grid-template-columns: 1fr 1fr; gap: 3rem;
    margin-bottom: 3rem;
}

.gallery__main {
    position: relative; background: var(--color-bg-gray);
    border-radius: var(--radius-lg); overflow: hidden;
    aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center;
}

.gallery__main-img {
    max-height: 100%; object-fit: contain; cursor: zoom-in;
    transition: transform 0.3s ease;
}

.gallery__zoom-btn {
    position: absolute; bottom: 1rem; right: 1rem;
    width: 40px; height: 40px; border-radius: var(--radius-full);
    background: rgba(255,255,255,0.9); backdrop-filter: blur(8px);
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow-sm); transition: all var(--transition);
}

.gallery__zoom-btn:hover { transform: scale(1.1); }
.gallery__zoom-btn svg { width: 20px; height: 20px; }

.gallery__thumbs {
    display: flex; gap: 0.75rem; margin-top: 1rem; overflow-x: auto;
    scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
    padding-bottom: 0.5rem;
}

.gallery__thumb {
    flex-shrink: 0; width: 80px; height: 60px;
    border: 2px solid var(--color-border); border-radius: var(--radius-sm);
    overflow: hidden; cursor: pointer; transition: all var(--transition);
    scroll-snap-align: start;
}

.gallery__thumb.is-active { border-color: var(--color-primary); }
.gallery__thumb img { width: 100%; height: 100%; object-fit: cover; }

.product-detail__brand {
    font-size: 0.8125rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.05em; color: var(--color-text-light);
}

.product-detail__title {
    font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700;
    margin: 0.5rem 0 1rem; letter-spacing: -0.02em; line-height: 1.2;
}

.product-detail__rating {
    display: flex; align-items: center; gap: 0.5rem;
    margin-bottom: 1.5rem; font-size: 0.875rem;
}

.product-detail__rating a { color: var(--color-primary); }
.product-detail__rating a:hover { text-decoration: underline; }

.product-detail__pricing {
    display: flex; align-items: baseline; flex-wrap: wrap; gap: 0.75rem;
    margin-bottom: 1rem;
}

.product-detail__price { font-size: 2rem; font-weight: 700; }
.product-detail__old-price { font-size: 1.125rem; color: var(--color-text-light); text-decoration: line-through; }

.product-detail__discount {
    background: var(--color-danger); color: #fff;
    font-size: 0.8125rem; font-weight: 700;
    padding: 0.25rem 0.625rem; border-radius: var(--radius-full);
}

.product-detail__installment { font-size: 0.875rem; color: var(--color-text-secondary); width: 100%; }

.product-detail__status {
    display: flex; align-items: center; gap: 1rem;
    margin-bottom: 1.5rem; font-size: 0.875rem;
}

.product-detail__delivery { color: var(--color-success); font-weight: 500; }

.product-detail__sizes { margin-bottom: 1.5rem; }
.product-detail__label { font-size: 0.875rem; font-weight: 600; display: block; margin-bottom: 0.5rem; }

.size-options { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.size-option {
    padding: 0.5rem 1rem; border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm); font-size: 0.875rem; font-weight: 500;
    transition: all var(--transition);
}

.size-option.is-active { border-color: var(--color-primary); background: var(--color-primary-soft); color: var(--color-primary); }
.size-option:hover { border-color: var(--color-primary); }

.product-detail__highlights {
    margin-bottom: 1.5rem; padding: 1rem; background: var(--color-bg-gray);
    border-radius: var(--radius-md);
}

.product-detail__highlights li {
    padding: 0.375rem 0; font-size: 0.875rem;
    padding-left: 1.25rem; position: relative;
}

.product-detail__highlights li::before {
    content: '✓'; position: absolute; left: 0; color: var(--color-success); font-weight: 700;
}

.product-detail__actions {
    display: flex; gap: 0.75rem; margin-bottom: 1.5rem; flex-wrap: wrap;
}

.product-detail__actions .btn { flex: 1; min-width: 160px; text-align: center; }

.product-detail__meta { font-size: 0.8125rem; color: var(--color-text-secondary); }
.product-detail__meta p { margin-bottom: 0.375rem; }

/* Product content (plain text sections) */
.product-detail__content {
    margin-top: 2.5rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--color-border);
    max-width: 820px;
}

.product-section {
    margin-bottom: 2.5rem;
}

.product-section__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.product-section__text {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
}

.product-section__list {
    list-style: disc;
    padding-left: 1.25rem;
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.product-section__list li { margin-bottom: 0.375rem; }

.product-review {
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
}

.product-review:last-child { border-bottom: none; }

.product-review__meta {
    font-size: 0.875rem;
    margin-bottom: 0.375rem;
    color: var(--color-text);
}

.product-faq {
    margin-bottom: 1.25rem;
}

.product-faq__q {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.375rem;
}

.specs-table { width: 100%; border-collapse: collapse; }

.specs-table tr { border-bottom: 1px solid var(--color-border); }
.specs-table th, .specs-table td { padding: 0.875rem 0; text-align: left; font-size: 0.875rem; }
.specs-table th { font-weight: 600; width: 40%; color: var(--color-text-secondary); }

/* Reviews */
.reviews-summary {
    display: grid; grid-template-columns: auto 1fr; gap: 3rem;
    margin-bottom: 2rem; padding: 2rem; background: var(--color-bg-gray);
    border-radius: var(--radius-lg);
}

.reviews-summary__score { text-align: center; }
.reviews-summary__number { font-size: 3rem; font-weight: 700; display: block; }

.review-bar {
    display: grid; grid-template-columns: 20px 1fr 40px; gap: 0.75rem;
    align-items: center; font-size: 0.8125rem; margin-bottom: 0.375rem;
}

.review-bar__track { height: 8px; background: var(--color-border); border-radius: 4px; overflow: hidden; }
.review-bar__fill { height: 100%; background: #ffb800; border-radius: 4px; transition: width 1s ease; }

.review-card {
    padding: 1.5rem 0; border-bottom: 1px solid var(--color-border);
}

.review-card__header {
    display: flex; align-items: center; gap: 0.75rem;
    margin-bottom: 0.5rem; font-size: 0.875rem;
}

.review-card__header time { color: var(--color-text-light); margin-left: auto; }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-item summary {
    padding: 1.25rem 0; font-weight: 600; cursor: pointer;
    list-style: none; display: flex; justify-content: space-between; align-items: center;
}

.faq-item summary::after { content: '+'; font-size: 1.25rem; color: var(--color-text-light); }
.faq-item[open] summary::after { content: '−'; }
.faq-item p { padding-bottom: 1.25rem; color: var(--color-text-secondary); font-size: 0.9375rem; }

/* Sticky Buy */
.sticky-buy {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 900;
    background: rgba(255,255,255,0.95); backdrop-filter: blur(20px);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -4px 20px var(--color-shadow);
    transform: translateY(100%); transition: transform var(--transition);
    padding-bottom: env(safe-area-inset-bottom);
}

.sticky-buy.is-visible { transform: translateY(0); }

.sticky-buy__inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.75rem 0; gap: 1rem;
}

.sticky-buy__info { display: flex; align-items: center; gap: 0.75rem; min-width: 0; }
.sticky-buy__info img { border-radius: var(--radius-sm); object-fit: contain; }
.sticky-buy__name { font-size: 0.875rem; font-weight: 600; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sticky-buy__price { font-size: 0.9375rem; font-weight: 700; color: var(--color-primary); }

/* Lightbox */
.lightbox {
    position: fixed; inset: 0; z-index: 2000;
    background: rgba(0,0,0,0.9); display: flex;
    align-items: center; justify-content: center;
    opacity: 0; transition: opacity var(--transition);
    pointer-events: none;
}

.lightbox[hidden] { display: none !important; }

.lightbox.is-open { opacity: 1; pointer-events: auto; }

.lightbox__close {
    position: absolute; top: 1.5rem; right: 1.5rem;
    color: #fff; font-size: 2rem; z-index: 2001;
}

.lightbox__img { max-width: 90vw; max-height: 90vh; object-fit: contain; border-radius: var(--radius-md); }

/* Cart */
.cart__layout { display: grid; grid-template-columns: 1fr 380px; gap: 2rem; align-items: start; }

.cart__empty { text-align: center; padding: 4rem 0; }
.cart__empty svg { color: var(--color-text-light); margin: 0 auto 1.5rem; }
.cart__empty h2 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.cart__empty p { color: var(--color-text-secondary); margin-bottom: 2rem; }

.cart-item {
    display: grid; grid-template-columns: 120px 1fr auto auto auto;
    gap: 1.25rem; align-items: center;
    padding: 1.5rem 0; border-bottom: 1px solid var(--color-border);
    transition: opacity var(--transition);
}

.cart-item.is-removing { opacity: 0; transform: translateX(20px); }

.cart-item__image img {
    border-radius: var(--radius-sm); object-fit: contain;
    background: var(--color-bg-gray); padding: 0.5rem;
}

.cart-item__brand { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; color: var(--color-text-light); }
.cart-item__name { font-size: 0.9375rem; font-weight: 600; margin: 0.25rem 0; }
.cart-item__price { font-size: 0.875rem; color: var(--color-text-secondary); }

.cart-item__quantity { display: flex; align-items: center; gap: 0; }

.qty-btn {
    width: 36px; height: 36px; border: 1px solid var(--color-border);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.125rem; transition: all var(--transition);
}

.qty-btn:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.qty-btn:last-child { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.qty-btn:hover { background: var(--color-bg-gray); }

.qty-input {
    width: 48px; height: 36px; text-align: center;
    border: 1px solid var(--color-border); border-left: none; border-right: none;
    font-size: 0.9375rem; font-weight: 600; -moz-appearance: textfield;
}

.qty-input::-webkit-outer-spin-button,
.qty-input::-webkit-inner-spin-button { -webkit-appearance: none; }

.cart-item__subtotal { font-weight: 700; font-size: 1rem; white-space: nowrap; }

.cart-item__remove {
    width: 36px; height: 36px; border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
    color: var(--color-text-light); transition: all var(--transition);
}

.cart-item__remove:hover { background: rgba(255,59,48,0.1); color: var(--color-danger); }
.cart-item__remove svg { width: 18px; height: 18px; }

.cart__summary, .checkout__summary {
    background: var(--color-bg); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 1.5rem;
    position: sticky; top: calc(var(--header-height) + 1rem);
}

.cart__summary-title, .checkout__summary-title {
    font-size: 1.125rem; font-weight: 700; margin-bottom: 1.5rem;
}

.promo-form { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
.promo-form .input { flex: 1; }

.summary-list__row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.625rem 0; font-size: 0.9375rem;
}

.summary-list__row--total {
    border-top: 1px solid var(--color-border);
    margin-top: 0.5rem; padding-top: 1rem;
    font-size: 1.125rem; font-weight: 700;
}

.summary-list__row dt { color: var(--color-text-secondary); }
.summary-list__row--total dt { color: var(--color-text); }

.cart__summary .btn { margin-top: 0.75rem; }

/* Checkout */
.checkout__layout { display: grid; grid-template-columns: 1fr 400px; gap: 2rem; align-items: start; }

.checkout__submit { margin-top: 1.5rem; min-width: 240px; }

.checkout__done {
    text-align: center; padding: 3rem 1rem;
    max-width: 480px; margin: 0 auto;
}

.checkout__done p {
    font-size: 1.125rem; color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

.form-section { margin-bottom: 2rem; border: none; }
.form-section__title { font-size: 1.125rem; font-weight: 700; margin-bottom: 1.25rem; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.375rem; }
.form-group--full { grid-column: 1 / -1; }
.form-group label { font-size: 0.8125rem; font-weight: 600; color: var(--color-text-secondary); }

.input {
    padding: 0.75rem 1rem; border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); font-size: 0.9375rem;
    transition: all var(--transition); outline: none; width: 100%;
}

.input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }
.input--sm { padding: 0.5rem 0.75rem; font-size: 0.875rem; }
.textarea { resize: vertical; min-height: 80px; }

.radio-cards { display: flex; flex-direction: column; gap: 0.75rem; }
.radio-cards--grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }

.radio-card { cursor: pointer; }
.radio-card input { position: absolute; opacity: 0; pointer-events: none; }

.radio-card__content {
    display: block; padding: 1rem 1.25rem;
    border: 1.5px solid var(--color-border); border-radius: var(--radius-md);
    transition: all var(--transition);
}

.radio-card input:checked + .radio-card__content {
    border-color: var(--color-primary); background: var(--color-primary-soft);
}

.radio-card__content small { display: block; color: var(--color-text-secondary); margin-top: 0.25rem; font-size: 0.8125rem; }

.checkbox-label--terms { margin-top: 1rem; font-size: 0.875rem; }
.checkbox-label--terms a { color: var(--color-primary); text-decoration: underline; }

.checkout-item {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.75rem 0; border-bottom: 1px solid var(--color-border);
    font-size: 0.875rem;
}

.checkout-item img { border-radius: 4px; object-fit: contain; background: var(--color-bg-gray); }
.checkout-item__info { flex: 1; min-width: 0; }
.checkout-item__info small { color: var(--color-text-light); }

/* Contact */
.contact__layout { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.contact__heading { font-size: 1.5rem; font-weight: 700; margin-bottom: 1.5rem; }

.contact__item {
    display: flex; gap: 1rem; padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
}

.contact__item svg { width: 24px; height: 24px; color: var(--color-primary); flex-shrink: 0; margin-top: 2px; }
.contact__item strong { display: block; font-size: 0.875rem; margin-bottom: 0.25rem; }
.contact__item p { font-size: 0.9375rem; color: var(--color-text-secondary); }
.contact__item a:hover { color: var(--color-primary); }

.contact-form { display: flex; flex-direction: column; gap: 1rem; }

.alert {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 1rem 1.25rem; border-radius: var(--radius-md);
    font-size: 0.9375rem; margin-bottom: 1.5rem;
}

.alert--success { background: rgba(52,199,89,0.12); color: #1a7a34; }
.alert svg { width: 20px; height: 20px; flex-shrink: 0; }

.order-form__form { max-width: 600px; margin: 0 auto; }

/* Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.blog-card__image-link { display: block; aspect-ratio: 16/9; overflow: hidden; background: var(--color-bg-gray); }
.blog-card__image { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.blog-card:hover .blog-card__image { transform: scale(1.05); }

.blog-card__body { padding: 1.5rem; }

.blog-card__meta {
    display: flex; flex-wrap: wrap; gap: 0.75rem;
    font-size: 0.75rem; color: var(--color-text-light); margin-bottom: 0.75rem;
}

.blog-card__category {
    font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
    color: var(--color-primary);
}

.blog-card__title {
    font-size: 1.125rem; font-weight: 700; line-height: 1.4;
    margin-bottom: 0.75rem;
}

.blog-card__title a:hover { color: var(--color-primary); }

.blog-card__excerpt {
    font-size: 0.875rem; color: var(--color-text-secondary);
    line-height: 1.7; margin-bottom: 1rem;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}

.blog-card__link {
    font-size: 0.875rem; font-weight: 600; color: var(--color-primary);
}

.blog-card__link:hover { text-decoration: underline; }

.blog-post__meta {
    display: flex; flex-wrap: wrap; gap: 1rem;
    font-size: 0.8125rem; color: var(--color-text-light); margin-bottom: 1rem;
}

.blog-post__title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700; line-height: 1.2; margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.blog-post__hero {
    width: 100%; border-radius: var(--radius-lg);
    margin-bottom: 2rem; aspect-ratio: 16/9; object-fit: cover;
}

.blog-post__content { font-size: 1rem; line-height: 1.8; color: var(--color-text-secondary); }
.blog-post__content h2 { font-size: 1.375rem; font-weight: 700; color: var(--color-text); margin: 2rem 0 0.75rem; }
.blog-post__content p { margin-bottom: 1rem; }
.blog-post__content ul { margin: 0 0 1rem 1.25rem; list-style: disc; }
.blog-post__content li { margin-bottom: 0.375rem; }

.blog-lead { font-size: 1.125rem; font-style: italic; color: var(--color-text); margin-bottom: 1.5rem !important; }

.blog-products {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem; margin: 1.5rem 0 2rem;
}

.blog-product {
    padding: 1.25rem; background: var(--color-bg-gray);
    border-radius: var(--radius-lg); border: 1px solid var(--color-border);
}

.blog-product__brand {
    font-size: 0.6875rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.06em; color: var(--color-text-light);
}

.blog-product__name { display: block; font-size: 1rem; margin: 0.375rem 0 0.5rem; color: var(--color-text); }

.blog-product__desc { font-size: 0.875rem; line-height: 1.6; margin-bottom: 0.75rem; color: var(--color-text-secondary); }

.blog-product__price { font-size: 1.125rem; font-weight: 700; margin-bottom: 0.75rem; color: var(--color-text); }

.blog-product__link { font-size: 0.875rem; font-weight: 600; color: var(--color-primary); }
.blog-product__link:hover { text-decoration: underline; }

.blog-post__footer {
    display: flex; gap: 1rem; flex-wrap: wrap;
    margin-top: 3rem; padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

/* Legal */
.legal__content h2 { font-size: 1.25rem; font-weight: 700; margin: 2rem 0 0.75rem; }
.legal__content p { margin-bottom: 1rem; color: var(--color-text-secondary); line-height: 1.8; }

/* Footer */
.footer {
    background: var(--color-bg-dark); color: rgba(255,255,255,0.7);
    padding: 4rem 0 2rem; margin-top: 4rem;
}

.footer__grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 2rem;
    margin-bottom: 3rem;
}

.footer__logo { font-size: 1.25rem; font-weight: 700; color: #fff; display: block; margin-bottom: 1rem; }
.footer__logo span { color: var(--color-primary); }

.footer__desc { font-size: 0.875rem; line-height: 1.7; margin-bottom: 1.5rem; }

.footer__heading { font-size: 0.875rem; font-weight: 600; color: #fff; margin-bottom: 1.25rem; text-transform: uppercase; letter-spacing: 0.05em; }

.footer__links li { margin-bottom: 0.625rem; }
.footer__links a { font-size: 0.875rem; transition: color var(--transition); }
.footer__links a:hover { color: #fff; }

.footer__contact li { font-size: 0.875rem; margin-bottom: 0.625rem; line-height: 1.5; }
.footer__contact a { transition: color var(--transition); }
.footer__contact a:hover { color: #fff; }

.footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem; text-align: center; font-size: 0.8125rem;
}

.footer__legal { margin-top: 0.75rem; color: rgba(255,255,255,0.5); line-height: 1.6; }

.contact__company { font-size: 0.9375rem; color: var(--color-text-secondary); margin-bottom: 0.75rem; }

.contact__legal {
    list-style: none;
    margin: 0 0 1.5rem;
    padding: 0;
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.contact__legal strong { color: var(--color-text); font-weight: 600; }

/* Modal */
.modal-overlay {
    position: fixed; inset: 0; z-index: 3000;
    background: rgba(0,0,0,0.6); display: flex;
    align-items: center; justify-content: center;
    opacity: 0; transition: opacity 0.3s ease;
    padding: 1rem; pointer-events: none;
}

.modal-overlay[hidden] { display: none !important; pointer-events: none; }

.modal-overlay.is-visible { opacity: 1; pointer-events: auto; }

.modal {
    background: var(--color-bg); border-radius: var(--radius-xl);
    padding: 3rem 2.5rem; text-align: center; max-width: 440px; width: 100%;
    transform: scale(0.9); transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: var(--shadow-lg);
}

.modal-overlay.is-visible .modal { transform: scale(1); }

.modal__icon { margin-bottom: 1.5rem; }
.modal__icon svg { width: 72px; height: 72px; margin: 0 auto; display: block; }

.modal__icon--success .modal__check-bg {
    fill: rgba(52, 199, 89, 0.15);
}

.modal__check-circle { stroke: var(--color-success); stroke-width: 2; stroke-dasharray: 166; stroke-dashoffset: 166; animation: strokeCircle 0.6s ease forwards; }
.modal__check-mark { stroke: var(--color-success); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 48; stroke-dashoffset: 48; animation: strokeCheck 0.4s 0.4s ease forwards; }

.modal__title { font-size: 1.75rem; font-weight: 700; margin-bottom: 0.75rem; }
.modal__text { font-size: 1rem; color: var(--color-text-secondary); margin-bottom: 0.5rem; }
.modal__subtext { font-size: 0.875rem; color: var(--color-text-light); margin-bottom: 2rem; }

/* Toast */
.toast-container {
    position: fixed; top: calc(var(--header-height) + 1rem); right: 1rem;
    z-index: 2500; display: flex; flex-direction: column; gap: 0.75rem;
}

.toast {
    background: var(--color-bg); border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg); padding: 1rem 1.25rem;
    display: flex; align-items: center; gap: 0.75rem;
    font-size: 0.875rem; font-weight: 500;
    transform: translateX(120%); transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    border-left: 3px solid var(--color-success); min-width: 280px;
}

.toast.is-visible { transform: translateX(0); }
.toast--error { border-left-color: var(--color-danger); }

/* Loader removed – was blocking all clicks until window.load */

/* Cookie bar */
.cookie-bar {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 9000;
    background: #fff; border-top: 1px solid var(--color-border);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.08);
    padding: 1rem 0;
}

.cookie-bar[hidden] { display: none !important; }

.cookie-bar__inner {
    display: flex; align-items: center; justify-content: space-between;
    gap: 1.5rem; flex-wrap: wrap;
}

.cookie-bar__text {
    font-size: 0.875rem; color: var(--color-text-secondary);
    line-height: 1.6; flex: 1; min-width: 240px;
}

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

.cookie-bar__actions {
    display: flex; gap: 0.5rem; flex-shrink: 0;
}

/* Legacy cookie modal (unused) */
.cookie-modal {
    position: fixed; inset: 0; z-index: 10000;
    display: flex; align-items: center; justify-content: center;
    padding: 1rem;
    opacity: 0; visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
    pointer-events: none;
}

.cookie-modal.is-visible {
    opacity: 1; visibility: visible;
    pointer-events: auto;
}

.cookie-modal[hidden] { display: none !important; }

.cookie-modal__overlay {
    position: absolute; inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
}

.cookie-modal__dialog {
    position: relative; z-index: 1;
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 2.5rem 2rem;
    max-width: 480px; width: 100%;
    text-align: center;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.25);
    transform: scale(0.9) translateY(20px);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.cookie-modal.is-visible .cookie-modal__dialog {
    transform: scale(1) translateY(0);
}

.cookie-modal__icon {
    width: 64px; height: 64px;
    background: var(--color-bg-gray);
    border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 1.25rem;
    color: var(--color-primary);
}

.cookie-modal__title {
    font-size: 1.375rem; font-weight: 700;
    margin-bottom: 0.75rem; letter-spacing: -0.02em;
}

.cookie-modal__text {
    font-size: 0.9375rem; color: var(--color-text-secondary);
    line-height: 1.7; margin-bottom: 1.75rem;
}

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

.cookie-modal__actions {
    display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap;
}

.cookie-modal__actions .btn { min-width: 140px; }

/* Back to top */
.back-to-top {
    position: fixed; bottom: 2rem; right: 2rem; z-index: 800;
    width: 48px; height: 48px; border-radius: var(--radius-full);
    background: var(--color-accent); color: #fff;
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow-lg); transition: all var(--transition);
    opacity: 0; transform: translateY(20px); pointer-events: none;
}

.back-to-top.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top:hover { transform: translateY(-4px); }
.back-to-top svg { width: 20px; height: 20px; }

/* Skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--color-bg-gray) 25%, #eee 50%, var(--color-bg-gray) 75%);
    background-size: 200% 100%; animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

/* Animations */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
    from { transform: scale(0); }
    to { transform: scale(1); }
}

@keyframes scrollDown {
    0%, 100% { opacity: 0; transform: translateX(-50%) translateY(0); }
    50% { opacity: 1; transform: translateX(-50%) translateY(8px); }
}

@keyframes spin { to { transform: rotate(360deg); } }

@keyframes shimmer { to { background-position: -200% 0; } }

@keyframes strokeCircle { to { stroke-dashoffset: 0; } }
@keyframes strokeCheck { to { stroke-dashoffset: 0; } }

.animate-fade-up {
    opacity: 0; animation: fadeUp 0.8s ease forwards;
}

.is-visible .animate-fade-up,
.animate-fade-up.is-visible { opacity: 1; }

/* Responsive */
@media (max-width: 1200px) {
    .features__grid { grid-template-columns: repeat(2, 1fr); }
    .footer__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 992px) {
    .header__nav { display: none; }
    .header__hamburger { display: flex; }
    .header__search-input { width: 160px; }
    .header__search-input:focus { width: 200px; }

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

    .catalog__filters {
        position: fixed; top: 0; left: 0; bottom: 0; width: 320px;
        z-index: 999; transform: translateX(-100%); transition: transform var(--transition);
        overflow-y: auto; border-radius: 0; border: none;
        box-shadow: var(--shadow-lg); padding-top: calc(var(--header-height) + 1rem);
    }

    .catalog__filters.is-open { transform: translateX(0); }
    .filters__close { display: block; }

    .catalog__filter-toggle { display: inline-flex; }

    .product-detail__layout { grid-template-columns: 1fr; gap: 2rem; }
    .cart__layout { grid-template-columns: 1fr; }
    .checkout__layout { grid-template-columns: 1fr; }
    .contact__layout { grid-template-columns: 1fr; }
    .reviews-summary { grid-template-columns: 1fr; gap: 1.5rem; }
    .radio-cards--grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .section { padding: 3rem 0; }
    .hero { min-height: 70vh; }
    .hero__content { padding: 2rem 0; }

    .product-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1rem; }
    .features__grid { grid-template-columns: 1fr; }
    .footer__grid { grid-template-columns: 1fr; gap: 2rem; }

    .cart-item {
        grid-template-columns: 80px 1fr;
        grid-template-rows: auto auto;
    }

    .cart-item__quantity { grid-column: 1 / -1; }
    .cart-item__subtotal { grid-column: 2; }
    .cart-item__remove { position: absolute; top: 1.5rem; right: 0; }

    .cart-item { position: relative; }

    .product-detail__actions { flex-direction: column; }
    .product-detail__actions .btn { width: 100%; }

    .sticky-buy__inner { flex-wrap: wrap; }
    .sticky-buy .btn { flex: 1; min-width: 140px; }

    .form-grid { grid-template-columns: 1fr; }
    .cta-banner__inner { padding: 2.5rem 1.5rem; }

    .back-to-top { bottom: calc(5rem + env(safe-area-inset-bottom)); }
}

@media (max-width: 480px) {
    .header__search { display: none; }
    .product-grid { grid-template-columns: 1fr; }
    .radio-cards--grid { grid-template-columns: 1fr 1fr; }

    .cookie-modal__dialog { padding: 2rem 1.5rem; }
    .cookie-modal__actions { flex-direction: column; }
    .cookie-modal__actions .btn { width: 100%; }

    .product-card__actions { flex-direction: column; }
}

@media (max-width: 375px) {
    .container { padding: 0 1rem; }
    .hero__title { font-size: 2rem; }
}

@media (min-width: 1920px) {
    .container { max-width: 1440px; }
    .hero__title { font-size: 4.5rem; }
}

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