/*
 * DS Phones - Минималистичный стиль Apple
 * Интернет-магазин iPhone в Москве
 */

/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --color-primary: #0071e3;
    --color-primary-hover: #0077ed;
    --color-text: #1d1d1f;
    --color-text-secondary: #86868b;
    --color-text-light: #6e6e73;
    --color-background: #ffffff;
    --color-background-secondary: #f5f5f7;
    --color-background-dark: #1d1d1f;
    --color-border: #d2d2d7;
    --color-success: #34c759;
    --color-error: #ff3b30;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 17px;
    --font-size-lg: 21px;
    --font-size-xl: 28px;
    --font-size-2xl: 40px;
    --font-size-3xl: 56px;
    --font-size-4xl: 80px;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 80px;
    --spacing-2xl: 120px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 22px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.47059;
    color: var(--color-text);
    background-color: var(--color-background);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ===== Container ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
}

h2 {
    font-size: var(--font-size-2xl);
}

h3 {
    font-size: var(--font-size-xl);
}

h4 {
    font-size: var(--font-size-lg);
}

.text-secondary {
    color: var(--color-text-secondary);
}

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

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 52px;
}

.header__logo {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.header__logo:hover {
    color: var(--color-text);
    text-decoration: none;
}

.header__logo svg {
    width: 20px;
    height: 24px;
}

.header__nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header__nav-link {
    color: var(--color-text);
    font-size: var(--font-size-sm);
    font-weight: 400;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.header__nav-link:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.header__cart {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-text);
    transition: color var(--transition-fast);
}

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

.header__cart svg {
    width: 20px;
    height: 20px;
}

.header__cart-count {
    position: absolute;
    top: 4px;
    right: 4px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background-color: var(--color-primary);
    color: white;
    font-size: 11px;
    font-weight: 600;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header__mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 40px;
    height: 40px;
    padding: 10px;
}

.header__mobile-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--color-text);
    transition: var(--transition-fast);
}

/* ===== Hero Section ===== */
.hero {
    padding: var(--spacing-xl) 0;
    text-align: center;
    background: linear-gradient(180deg, var(--color-background) 0%, var(--color-background-secondary) 100%);
}

.hero__title {
    margin-bottom: var(--spacing-sm);
}

.hero__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero__cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 12px 24px;
    font-size: var(--font-size-base);
    font-weight: 400;
    border-radius: 980px;
    transition: all var(--transition-fast);
    text-decoration: none;
    cursor: pointer;
    border: none;
}

.btn:hover {
    text-decoration: none;
}

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

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

.btn--secondary {
    background-color: transparent;
    color: var(--color-primary);
}

.btn--secondary:hover {
    background-color: rgba(0, 113, 227, 0.1);
    color: var(--color-primary);
}

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

.btn--dark:hover {
    background-color: #333;
    color: white;
}

.btn--outline {
    border: 1px solid var(--color-border);
    background-color: transparent;
    color: var(--color-text);
}

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

.btn--sm {
    padding: 8px 16px;
    font-size: var(--font-size-sm);
}

.btn--lg {
    padding: 16px 32px;
    font-size: var(--font-size-lg);
}

.btn--full {
    width: 100%;
}

/* ===== Section ===== */
.section {
    padding: var(--spacing-xl) 0;
}

.section--gray {
    background-color: var(--color-background-secondary);
}

.section--dark {
    background-color: var(--color-background-dark);
    color: white;
}

.section__header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section__title {
    margin-bottom: var(--spacing-sm);
}

.section__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

.section--dark .section__subtitle {
    color: rgba(255, 255, 255, 0.7);
}

/* ===== Product Grid ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

/* ===== Product Card ===== */
.product-card {
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: inherit;
}

.product-card__badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    padding: 4px 12px;
    background-color: var(--color-primary);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: 980px;
    z-index: 1;
}

.product-card__badge--new {
    background-color: var(--color-success);
}

.product-card__badge--pro {
    background: linear-gradient(135deg, #1d1d1f 0%, #48484a 100%);
}

.product-card__image {
    position: relative;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    background-color: var(--color-background-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.product-card__image img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
    transition: transform var(--transition-base);
}

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

.product-card__color {
    position: absolute;
    bottom: var(--spacing-xs);
    right: var(--spacing-xs);
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.product-card__content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card__model {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.product-card__title {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: 4px;
    line-height: 1.3;
}

.product-card__specs {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.product-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-background-secondary);
}

.product-card__price {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.product-card__btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.product-card__btn:hover {
    background-color: var(--color-primary-hover);
    transform: scale(1.1);
}

.product-card__btn svg {
    width: 20px;
    height: 20px;
}

/* ===== Filter Tabs ===== */
.filter-tabs {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.filter-tab {
    padding: 10px 20px;
    font-size: var(--font-size-sm);
    font-weight: 400;
    color: var(--color-text);
    background-color: transparent;
    border: 1px solid var(--color-border);
    border-radius: 980px;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.filter-tab:hover {
    border-color: var(--color-text);
    color: var(--color-text);
    text-decoration: none;
}

.filter-tab--active,
.filter-tab--active:hover {
    background-color: var(--color-text);
    border-color: var(--color-text);
    color: white;
}

/* ===== Advantages ===== */
.advantages {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.advantage {
    text-align: center;
    padding: var(--spacing-md);
}

.advantage__icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background-secondary);
    border-radius: 50%;
    color: var(--color-primary);
}

.advantage__icon svg {
    width: 28px;
    height: 28px;
}

.advantage__title {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.advantage__text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ===== Product Page ===== */
.product-page {
    padding: var(--spacing-lg) 0;
}

.product-page__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.product-page__gallery {
    position: sticky;
    top: 80px;
}

.product-page__image {
    background-color: var(--color-background-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
}

.product-page__image img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

.product-page__info {
    padding: var(--spacing-md) 0;
}

.product-page__series {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.product-page__title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.product-page__price {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.product-page__specs {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-background-secondary);
    border-radius: var(--radius-md);
}

.product-page__spec {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-border);
}

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

.product-page__spec-label {
    color: var(--color-text-secondary);
}

.product-page__spec-value {
    font-weight: 500;
}

.product-page__color {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.product-page__color-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
}

.product-page__actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.product-page__trust {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background-color: var(--color-background-secondary);
    border-radius: var(--radius-md);
}

.product-page__trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.product-page__trust-item svg {
    width: 20px;
    height: 20px;
    color: var(--color-success);
    flex-shrink: 0;
}

/* ===== Breadcrumbs ===== */
.breadcrumbs {
    padding: var(--spacing-sm) 0;
}

.breadcrumbs ol {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.breadcrumbs li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.breadcrumbs li:not(:last-child)::after {
    content: '/';
    color: var(--color-text-secondary);
}

.breadcrumbs a {
    color: var(--color-text-secondary);
}

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

.breadcrumbs li:last-child span {
    color: var(--color-text);
}

/* ===== Cart Page ===== */
.cart-page {
    padding: var(--spacing-lg) 0;
}

.cart-page__title {
    margin-bottom: var(--spacing-lg);
}

.cart-page__grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--spacing-lg);
    align-items: start;
}

.cart-page__empty {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.cart-page__empty-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-text-secondary);
}

.cart-page__empty-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.cart-page__empty-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

/* ===== Cart Items ===== */
.cart-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.cart-item {
    display: grid;
    grid-template-columns: 120px 1fr auto;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-md);
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.cart-item__image {
    background-color: var(--color-background-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cart-item__image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.cart-item__info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cart-item__title {
    font-weight: 600;
}

.cart-item__specs {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.cart-item__price {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.cart-item__actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--spacing-sm);
}

.cart-item__quantity {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: var(--color-background-secondary);
    border-radius: 980px;
    padding: 4px;
}

.cart-item__quantity-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--color-background);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.cart-item__quantity-btn:hover {
    background-color: var(--color-text);
    color: white;
}

.cart-item__quantity-value {
    min-width: 32px;
    text-align: center;
    font-weight: 500;
}

.cart-item__remove {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.cart-item__remove:hover {
    color: var(--color-error);
}

/* ===== Cart Summary ===== */
.cart-summary {
    position: sticky;
    top: 80px;
    padding: var(--spacing-md);
    background-color: var(--color-background-secondary);
    border-radius: var(--radius-lg);
}

.cart-summary__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.cart-summary__row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
}

.cart-summary__row--total {
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.cart-summary__actions {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* ===== Checkout Page ===== */
.checkout-page {
    padding: var(--spacing-lg) 0;
}

.checkout-page__grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--spacing-lg);
    align-items: start;
}

.checkout-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-label {
    font-weight: 500;
}

.form-input {
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    background-color: var(--color-background);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.1);
}

.form-input::placeholder {
    color: var(--color-text-secondary);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-radio {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-radio:hover {
    border-color: var(--color-text);
}

.form-radio input {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary);
}

.form-radio--selected {
    border-color: var(--color-primary);
    background-color: rgba(0, 113, 227, 0.05);
}

.form-error {
    color: var(--color-error);
    font-size: var(--font-size-sm);
}

/* ===== Success Page ===== */
.success-page {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.success-page__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background-color: var(--color-success);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-page__icon svg {
    width: 40px;
    height: 40px;
}

.success-page__title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.success-page__text {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.success-page__order-id {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-background-secondary);
    border-radius: var(--radius-md);
    font-family: monospace;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
}

.success-page__actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

/* ===== Info Pages ===== */
.info-page {
    padding: var(--spacing-lg) 0;
}

.info-page__header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.info-page__title {
    margin-bottom: var(--spacing-sm);
}

.info-page__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

.info-page__content {
    max-width: 800px;
    margin: 0 auto;
}

.info-page__section {
    margin-bottom: var(--spacing-lg);
}

.info-page__section-title {
    margin-bottom: var(--spacing-sm);
}

.info-page__text {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.info-page__text p {
    margin-bottom: var(--spacing-sm);
}

.info-page__list {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-md);
}

.info-page__list li {
    margin-bottom: var(--spacing-xs);
    position: relative;
    padding-left: var(--spacing-sm);
}

.info-page__list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* ===== Contact Section ===== */
.contact-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.contact-card {
    padding: var(--spacing-md);
    background-color: var(--color-background-secondary);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

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

.contact-card__icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background);
    border-radius: 50%;
    color: var(--color-primary);
}

.contact-card__icon svg {
    width: 28px;
    height: 28px;
}

.contact-card__title {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.contact-card__value {
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    text-decoration: none;
}

.contact-card__value:hover {
    text-decoration: underline;
}

/* ===== Footer ===== */
.footer {
    margin-top: auto;
    padding: var(--spacing-lg) 0 var(--spacing-md);
    background-color: var(--color-background-secondary);
    border-top: 1px solid var(--color-border);
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer__section-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer__link {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

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

.footer__contact {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer__contact a {
    color: var(--color-text);
    font-weight: 500;
}

.footer__bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer__copyright {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.footer__legal {
    display: flex;
    gap: var(--spacing-sm);
}

.footer__legal a {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

/* ===== Alert Messages ===== */
.alert {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.alert--success {
    background-color: rgba(52, 199, 89, 0.1);
    color: var(--color-success);
}

.alert--error {
    background-color: rgba(255, 59, 48, 0.1);
    color: var(--color-error);
}

.alert--info {
    background-color: rgba(0, 113, 227, 0.1);
    color: var(--color-primary);
}

/* ===== Notice Box ===== */
.notice-box {
    padding: var(--spacing-md);
    background-color: rgba(0, 113, 227, 0.05);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: var(--spacing-md) 0;
}

.notice-box__title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.notice-box__text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .product-page__grid,
    .cart-page__grid,
    .checkout-page__grid {
        grid-template-columns: 1fr;
    }
    
    .product-page__gallery {
        position: static;
    }
    
    .cart-summary {
        position: static;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-3xl: 40px;
        --font-size-2xl: 32px;
        --font-size-xl: 24px;
        --spacing-xl: 48px;
        --spacing-lg: 32px;
    }
    
    .header__nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-background);
        padding: var(--spacing-md);
        flex-direction: column;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
    }
    
    .header__nav.active {
        display: flex;
    }
    
    .header__mobile-toggle {
        display: flex;
    }
    
    .hero__cta {
        flex-direction: column;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .product-card {
        padding: var(--spacing-sm);
    }
    
    .product-card__title {
        font-size: var(--font-size-sm);
    }
    
    .product-card__footer {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .product-card__btn {
        width: 100%;
        height: 36px;
        border-radius: var(--radius-md);
    }
    
    .cart-item {
        grid-template-columns: 80px 1fr;
        gap: var(--spacing-sm);
    }
    
    .cart-item__actions {
        grid-column: 1 / -1;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .filter-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        justify-content: flex-start;
        padding-bottom: var(--spacing-xs);
        -webkit-overflow-scrolling: touch;
    }
    
    .filter-tab {
        flex-shrink: 0;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }
}

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

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* ===== Loading State ===== */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== Utility Classes ===== */
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.hidden { display: none !important; }
.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;
}