/* =====================================================
   STORMWIND - Main Styles
   ===================================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #1e4d8c;
    --color-primary-dark: #153a6b;
    --color-primary-light: #2a6bc7;
    --color-secondary: #0a1628;
    --color-accent: #c41e3a;
    --color-accent-light: #e63950;

    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;

    /* Typography */
    --font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Layout */
    --header-height: 80px;
    --container-max: 1280px;
    --container-padding: 1rem;
}

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

html {
    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: 1.6;
    color: var(--color-gray-900);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

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

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

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Section */
.section {
    padding: var(--spacing-4xl) 0;
}

.section__title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.section__subtitle {
    font-size: var(--font-size-lg);
    text-align: center;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-2xl);
}

/* =====================================================
   Header
   ===================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.header--scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

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

.header__logo-img {
    height: 40px;
    width: auto;
}

.header__logo-text {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: 1px;
}

.header__nav {
    display: none;
}

.header__menu {
    display: flex;
    gap: var(--spacing-lg);
}

.header__link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    padding: var(--spacing-sm) 0;
    position: relative;
}

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

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

.header__link:hover::after {
    width: 100%;
}

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

.header__phone {
    display: none;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-primary);
}

.header__phone-icon {
    flex-shrink: 0;
}

.header__cart {
    position: relative;
    padding: var(--spacing-sm);
    color: var(--color-gray-700);
    transition: color var(--transition-fast);
}

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

.header__cart-count {
    position: absolute;
    top: 0;
    right: 0;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    font-size: 10px;
    font-weight: 700;
    color: var(--color-white);
    background: var(--color-accent);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.header__burger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    padding: 4px;
}

.header__burger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-gray-700);
    border-radius: 1px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.header__burger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.header__burger.active span:nth-child(2) {
    opacity: 0;
}

.header__burger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* =====================================================
   Hero Section
   ===================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: var(--header-height);
    background: var(--color-secondary);
    overflow: hidden;
}

.hero__slider {
    position: relative;
    flex: 1;
    display: flex;
}

.hero__slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
    display: flex;
    align-items: center;
}

.hero__slide.active {
    opacity: 1;
    visibility: visible;
}

.hero__slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary-dark) 100%);
}

.hero__slide-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="ice" patternUnits="userSpaceOnUse" width="20" height="20"><path d="M0 10h20M10 0v20" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></pattern></defs><rect fill="url(%23ice)" width="100" height="100"/></svg>');
    opacity: 0.3;
}

.hero__slide-bg--2 {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
}

.hero__slide-bg--3 {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
}

.hero__title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero__title span {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 500;
    letter-spacing: 4px;
    opacity: 0.9;
    margin-top: var(--spacing-sm);
}

.hero__subtitle {
    font-size: var(--font-size-lg);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    opacity: 0.9;
}

.hero__buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    justify-content: center;
    align-items: center;
}

/* Hero Controls */
.hero__controls {
    position: absolute;
    bottom: 200px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    z-index: 10;
}

.hero__arrow {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--color-white);
    transition: all var(--transition-fast);
}

.hero__arrow:hover {
    background: rgba(255, 255, 255, 0.2);
}

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

.hero__dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.3);
    border: none;
    transition: all var(--transition-fast);
}

.hero__dot.active,
.hero__dot:hover {
    background: var(--color-white);
    transform: scale(1.2);
}

/* Countdown */
.hero__countdown {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 10;
}

.hero__countdown-title {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.countdown {
    display: flex;
    gap: var(--spacing-md);
}

.countdown__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 60px;
}

.countdown__value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.countdown__label {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--spacing-xs);
    text-transform: uppercase;
}

/* Hero Features */
.hero__features {
    background: var(--color-white);
    padding: var(--spacing-xl) 0;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    text-align: center;
}

.feature {
    padding: var(--spacing-md);
}

.feature__icon {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

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

.feature__text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* =====================================================
   Catalog Section
   ===================================================== */
.catalog {
    background: var(--color-gray-100);
}

.catalog__filters {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.filter-group {
    margin-bottom: var(--spacing-lg);
}

.filter-group:last-child {
    margin-bottom: 0;
}

.filter-group__label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-sm);
}

.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.filter-tab {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    background: var(--color-gray-100);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.filter-tab:hover {
    background: var(--color-gray-200);
}

.filter-tab.active {
    color: var(--color-white);
    background: var(--color-primary);
}

.filter-group--selects {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.filter-select-wrap {
    flex: 1;
    min-width: 150px;
}

.filter-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    background: var(--color-white);
    cursor: pointer;
}

.catalog__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Preorder Banner */
.preorder-banner {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

.preorder-banner__icon {
    flex-shrink: 0;
}

.preorder-banner__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.preorder-banner__text {
    opacity: 0.9;
}

/* =====================================================
   Configurator Section
   ===================================================== */
.configurator {
    background: var(--color-white);
}

.configurator__wrapper {
    display: grid;
    gap: var(--spacing-xl);
}

.configurator__steps {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.config-step {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-gray-100);
    border-radius: var(--radius-full);
    opacity: 0.5;
    transition: all var(--transition-fast);
}

.config-step.active {
    opacity: 1;
    background: var(--color-primary);
    color: var(--color-white);
}

.config-step.completed {
    opacity: 1;
    background: var(--color-gray-200);
}

.config-step__number {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
}

.config-step__title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    display: none;
}

.configurator__content {
    min-height: 300px;
}

.config-panel {
    display: none;
}

.config-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.config-panel__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.config-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-md);
    max-width: 600px;
    margin: 0 auto;
}

.config-options--large {
    grid-template-columns: repeat(2, 1fr);
    max-width: 400px;
}

.config-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--color-gray-100);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.config-option:hover {
    background: var(--color-gray-200);
}

.config-option.selected {
    border-color: var(--color-primary);
    background: rgba(30, 77, 140, 0.1);
}

.config-option__icon {
    color: var(--color-primary);
}

.config-option__title {
    font-weight: 600;
    text-align: center;
}

.config-option__desc {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* Config Parameters */
.config-params {
    max-width: 500px;
    margin: 0 auto;
}

.config-param {
    margin-bottom: var(--spacing-xl);
}

.config-param__label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

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

.config-param__options .config-option {
    padding: var(--spacing-md) var(--spacing-lg);
}

/* Config Customization */
.config-custom {
    max-width: 500px;
    margin: 0 auto;
}

.config-custom__item {
    background: var(--color-gray-100);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
}

.config-custom__label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    cursor: pointer;
    margin-bottom: var(--spacing-md);
}

.config-custom__check {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary);
}

.config-custom__input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.config-custom__input:disabled {
    background: var(--color-gray-200);
    cursor: not-allowed;
}

.config-custom__lang {
    display: flex;
    gap: var(--spacing-lg);
}

.config-custom__lang label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
}

/* Config Summary */
.configurator__summary {
    background: var(--color-gray-100);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
}

.config-summary__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.config-summary__details {
    margin-bottom: var(--spacing-lg);
}

.config-summary__empty {
    color: var(--color-gray-500);
    font-style: italic;
}

.config-summary__line {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-gray-300);
}

.config-summary__price {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-xl);
    font-weight: 700;
    padding: var(--spacing-md) 0;
    border-top: 2px solid var(--color-gray-300);
    margin-bottom: var(--spacing-lg);
}

.config-summary__actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.config-summary__actions .btn {
    flex: 1;
}

/* =====================================================
   Accessories Section
   ===================================================== */
.accessories {
    background: var(--color-gray-100);
}

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

/* =====================================================
   Technologies Section
   ===================================================== */
.technologies {
    background: var(--color-white);
}

.tech__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

.tech-card {
    background: var(--color-gray-100);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.tech-card__icon {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.tech-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.tech-card__text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* Comparison Table */
.tech__comparison {
    max-width: 800px;
    margin: 0 auto;
}

.tech__comparison-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.comparison-table {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-bottom: 1px solid var(--color-gray-200);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-row--header {
    background: var(--color-primary);
    color: var(--color-white);
    font-weight: 600;
}

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

.comparison-cell--highlight {
    color: var(--color-primary);
    font-weight: 600;
}

/* =====================================================
   About Section
   ===================================================== */
.about {
    background: var(--color-gray-100);
}

.about__content {
    display: grid;
    gap: var(--spacing-2xl);
}

.about__text {
    max-width: 600px;
}

.about__text p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about__stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.about__stat {
    text-align: center;
}

.about__stat-value {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-primary);
}

.about__stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.about__image-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    min-height: 300px;
    background: var(--color-gray-200);
    border-radius: var(--radius-lg);
    color: var(--color-gray-500);
}

/* =====================================================
   Reviews Section
   ===================================================== */
.reviews {
    background: var(--color-white);
}

.reviews__slider {
    position: relative;
    overflow: hidden;
}

.reviews__track {
    display: flex;
    gap: var(--spacing-lg);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: var(--spacing-md);
}

.reviews__track::-webkit-scrollbar {
    display: none;
}

.review-card {
    flex: 0 0 300px;
    scroll-snap-align: start;
    background: var(--color-gray-100);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
}

.review-card__header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.review-card__avatar {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--color-white);
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

.review-card__name {
    display: block;
    font-weight: 600;
}

.review-card__role {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.review-card__stars {
    color: #ffc107;
    margin-bottom: var(--spacing-md);
}

.review-card__text {
    font-size: var(--font-size-sm);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.review-card__product {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
}

.reviews__controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.reviews__arrow {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gray-100);
    border-radius: var(--radius-full);
    color: var(--color-gray-700);
    transition: all var(--transition-fast);
}

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

/* =====================================================
   B2B Section
   ===================================================== */
.b2b {
    background: var(--color-secondary);
    color: var(--color-white);
}

.b2b .section__title,
.b2b .section__subtitle {
    color: var(--color-white);
}

.b2b .section__subtitle {
    opacity: 0.8;
}

.b2b__content {
    display: grid;
    gap: var(--spacing-2xl);
}

.b2b__subtitle {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.b2b__subtitle:first-child {
    margin-top: 0;
}

.b2b__list {
    padding-left: var(--spacing-lg);
}

.b2b__list li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.b2b__list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary-light);
}

.b2b__list--check li::before {
    content: '✓';
    color: #4caf50;
}

.b2b__card {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.b2b__card-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.b2b__card-text {
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
}

.b2b__card .btn {
    margin-bottom: var(--spacing-md);
}

.b2b__card .btn:last-child {
    margin-bottom: 0;
}

/* =====================================================
   How to Order Section
   ===================================================== */
.howto {
    background: var(--color-gray-100);
}

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

.howto-step {
    text-align: center;
    padding: var(--spacing-lg);
}

.howto-step__number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-white);
    background: var(--color-primary);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.howto-step__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.howto-step__text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* =====================================================
   Contacts Section
   ===================================================== */
.contacts {
    background: var(--color-white);
}

.contacts__content {
    display: grid;
    gap: var(--spacing-2xl);
}

.contacts__info {
    display: grid;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
}

.contact-item__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gray-100);
    border-radius: var(--radius-full);
    color: var(--color-primary);
}

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

.contact-item__text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.contact-item__text a {
    color: var(--color-primary);
}

.contact-item__text a:hover {
    text-decoration: underline;
}

.map-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    min-height: 300px;
    background: var(--color-gray-200);
    border-radius: var(--radius-lg);
    color: var(--color-gray-500);
}

/* =====================================================
   Footer
   ===================================================== */
.footer {
    background: var(--color-secondary);
    color: var(--color-white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer__content {
    display: grid;
    gap: var(--spacing-xl);
}

.footer__logo-text {
    font-size: var(--font-size-xl);
    font-weight: 800;
    letter-spacing: 1px;
}

.footer__tagline {
    font-size: var(--font-size-sm);
    opacity: 0.7;
    margin-top: var(--spacing-sm);
}

.footer__copyright {
    font-size: var(--font-size-xs);
    opacity: 0.5;
    margin-top: var(--spacing-lg);
}

.footer__title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
    opacity: 0.7;
}

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

.footer__links a {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.footer__links a:hover {
    opacity: 1;
}

.footer__contacts {
    font-size: var(--font-size-sm);
}

.footer__contacts p {
    margin-bottom: var(--spacing-sm);
    opacity: 0.8;
}

.footer__contacts a:hover {
    opacity: 1;
}

/* =====================================================
   Modal
   ===================================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal__content {
    position: relative;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal__content--product {
    max-width: 800px;
}

.modal__close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gray-100);
    border-radius: var(--radius-full);
    color: var(--color-gray-700);
    transition: all var(--transition-fast);
}

.modal__close:hover {
    background: var(--color-gray-200);
}

.modal__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    padding-right: var(--spacing-2xl);
}

/* Cart Modal */
.cart__items {
    margin-bottom: var(--spacing-lg);
}

.cart__empty {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-gray-500);
}

.cart__empty svg {
    margin-bottom: var(--spacing-md);
}

.cart__total {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-xl);
    font-weight: 700;
    padding: var(--spacing-md) 0;
    border-top: 2px solid var(--color-gray-200);
    margin-bottom: var(--spacing-lg);
}

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

/* =====================================================
   Buttons
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 2px solid transparent;
}

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

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

.btn--secondary {
    background: var(--color-gray-200);
    color: var(--color-gray-800);
}

.btn--secondary:hover {
    background: var(--color-gray-300);
}

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

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

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

.btn--accent:hover {
    background: var(--color-accent-light);
    border-color: var(--color-accent-light);
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* =====================================================
   Utility Classes
   ===================================================== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }