/* OHM SUPPLY - Technical Drawing Design System */

/* CSS Custom Properties - The "Clean Room" */
:root {
    /* Monochromatic Color Palette */
    --canvas: #FFFFFF; /* Pure White */
    --grid-lines: #E5E5E5; /* Light Grey - 1px borders */
    --ink: #111111; /* Near Black - Text */
    --signal-red: #FF3B30; /* Sale color */
    --tech-blue: #007AFF; /* Action buttons */
    --silver: #999999; /* Secondary text */

    /* Typography - Specs & Details */
    --font-primary: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* UI Elements - Wireframe Look */
    --border-width: 1px;
    --border-radius: 0px; /* Sharp 90-degree corners */
    --icon-stroke: 1.5px;

    /* Layout */
    --container-max-width: 1400px;
    --header-height: 80px;
    --sidebar-width: 400px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.6s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--ink);
    background: var(--canvas);
    line-height: 1.5;
    overflow-x: hidden;
}

/* Utility Header */
.utility-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    border-bottom: var(--border-width) solid var(--grid-lines);
    z-index: 1000;
    background: var(--canvas);
}

.header-row {
    display: flex;
    align-items: center;
    height: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.header-section {
    display: flex;
    align-items: center;
}

.logo-section {
    flex: 0 0 auto;
}

.logo {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.05em;
}

.search-section {
    flex: 1;
    display: flex;
    justify-content: center;
}

.search-bar {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: var(--border-width) solid var(--grid-lines);
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    color: var(--ink);
    background: var(--canvas);
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--ink);
    box-shadow: none;
}

.search-input::placeholder {
    color: var(--silver);
}

.control-section {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.control-item {
    position: relative;
    padding: 0.75rem 1rem;
    border: var(--border-width) solid var(--grid-lines);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.control-item:hover {
    border-color: var(--ink);
}

.control-item:hover .control-label {
    color: var(--ink);
}

.control-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.control-icon {
    font-size: 1.2rem;
    color: var(--silver);
    transition: color var(--transition-fast);
}

.control-item:hover .control-icon {
    color: var(--ink);
}

.control-label {
    font-size: 0.7rem;
    color: var(--silver);
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: color var(--transition-fast);
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--signal-red);
    color: var(--canvas);
    font-size: 0.7rem;
    font-weight: 600;
    font-family: var(--font-mono);
    padding: 2px 6px;
    min-width: 18px;
    text-align: center;
}

.separator {
    width: 1px;
    height: 24px;
    background: var(--grid-lines);
}

/* Hero Slider */
.hero-slider {
    margin-top: var(--header-height);
    position: relative;
    height: calc(100vh - var(--header-height));
    min-height: 600px;
}

.hero-container {
    position: relative;
    height: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
}

.hero-slide {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.hero-slide.active {
    opacity: 1;
}

.hero-content {
    flex: 0 0 50%;
    padding: 4rem 2rem 4rem 4rem;
    border-right: var(--border-width) solid var(--grid-lines);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.product-badge {
    font-size: 0.8rem;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--signal-red);
    letter-spacing: 0.1em;
    margin-bottom: 2rem;
    border: var(--border-width) solid var(--signal-red);
    padding: 0.5rem 1rem;
    display: inline-block;
    width: fit-content;
}

.product-title {
    font-family: var(--font-primary);
    font-size: 3rem;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.product-subtitle {
    font-size: 1.1rem;
    color: var(--silver);
    margin-bottom: 3rem;
    line-height: 1.4;
}

.product-price {
    margin-bottom: 3rem;
}

.current-price {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 600;
    color: var(--ink);
}

.original-price {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    color: var(--silver);
    text-decoration: line-through;
    margin-left: 1rem;
}

.buy-button {
    background: var(--canvas);
    color: var(--tech-blue);
    border: 2px solid var(--tech-blue);
    padding: 1rem 2rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: var(--border-radius);
}

.buy-button:hover {
    background: var(--tech-blue);
    color: var(--canvas);
    transform: scale(0.98);
}

.buy-button:active {
    transform: scale(0.95);
}

.hero-image {
    flex: 0 0 50%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--canvas);
    overflow: hidden;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
    transition: opacity var(--transition-normal);
}

.hero-image img:hover {
    opacity: 1;
}

.slider-controls {
    position: absolute;
    bottom: 3rem;
    right: 4rem;
    display: flex;
    gap: 1rem;
    z-index: 10;
}

.control-btn {
    background: var(--canvas);
    color: var(--ink);
    border: var(--border-width) solid var(--grid-lines);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: var(--border-radius);
}

.control-btn:hover {
    background: var(--ink);
    color: var(--canvas);
    transform: scale(0.98);
}

/* Sale Banner Ticker */
.sale-banner {
    position: relative;
    width: 100%;
    background: var(--ink);
    color: var(--canvas);
    overflow: hidden;
    height: 40px;
}

.ticker-content {
    display: flex;
    align-items: center;
    height: 100%;
    white-space: nowrap;
    animation: marquee 20s linear infinite;
}

.ticker-text {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    padding: 0 2rem;
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Category Navigation */
.category-nav {
    border-bottom: var(--border-width) solid var(--grid-lines);
}

.category-list {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem 0;
    gap: 0;
}

.category-item {
    padding: 0.75rem 1.5rem;
    border: var(--border-width) solid transparent;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--silver);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.category-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: var(--border-width);
    background: var(--tech-blue);
    transform: scaleX(0);
    transition: transform var(--transition-fast);
}

.category-item:hover {
    color: var(--ink);
    border-color: var(--grid-lines);
}

.category-item:hover::after {
    transform: scaleX(1);
}

.category-item:not(:last-child) {
    border-right: var(--border-width) solid var(--grid-lines);
}

/* Featured Products Grid */
.products-section {
    padding: 4rem 0;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    padding-bottom: 2rem;
    border-bottom: var(--border-width) solid var(--grid-lines);
}

.section-title {
    font-family: var(--font-primary);
    font-size: 2rem;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.02em;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--grid-lines);
    border: var(--border-width) solid var(--grid-lines);
}

.product-card {
    background: var(--canvas);
    position: relative;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.product-card:hover {
    z-index: 1;
}

.product-image-container {
    height: 280px;
    background: #F8F8F8;
    position: relative;
    overflow: hidden;
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.8);
    transition: all var(--transition-normal);
}

.product-card:hover .product-image {
    filter: saturate(1);
    transform: scale(0.95);
}

.sale-tag {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--signal-red);
    color: var(--canvas);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.5rem 0.75rem;
    line-height: 1;
}

.product-info {
    padding: 1.5rem;
    border-top: var(--border-width) solid var(--grid-lines);
}

.product-name {
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.5rem;
}

.product-specs {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--silver);
    line-height: 1.4;
    margin-bottom: 1rem;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-price {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
}

.original-price {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--silver);
    text-decoration: line-through;
    margin-right: 1rem;
}

.sale-price {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    color: var(--signal-red);
}

.add-button {
    background: var(--canvas);
    color: var(--tech-blue);
    border: var(--border-width) solid var(--tech-blue);
    width: 40px;
    height: 40px;
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    border-radius: var(--border-radius);
}

.add-button:hover {
    background: var(--tech-blue);
    color: var(--canvas);
    transform: scale(0.98);
}

.add-button:active {
    transform: scale(0.95);
}

/* Cart Sidebar */
#cartSidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100%;
    background: var(--canvas);
    border-left: var(--border-width) solid var(--grid-lines);
    z-index: 1001;
    transition: right var(--transition-normal);
    display: flex;
    flex-direction: column;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    visibility: hidden;
    opacity: 0;
}

#cartSidebar.active {
    right: 0;
    visibility: visible;
    opacity: 1;
}

/* Ensure no other cart sidebars exist */
.sidebar,
nav-sidebar,
.shopping-cart-sidebar {
    display: none !important;
}

/* Remove any positioning conflicts */
.cart-sidebar ~ .cart-sidebar,
.shopping-cart-sidebar ~ .shopping-cart-sidebar,
nav-sidebar ~ .nav-sidebar {
    display: none !important;
}

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    border-bottom: var(--border-width) solid var(--grid-lines);
}

.cart-header h3 {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: 0.05em;
}

.close-cart {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--silver);
    cursor: pointer;
    transition: color var(--transition-fast);
    font-family: var(--font-primary);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
}

.close-cart:hover {
    color: var(--ink);
    background: var(--grid-lines);
}

.cart-items-container {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
}

.cart-empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--silver);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 2rem;
    opacity: 0.5;
}

.cart-empty p {
    font-family: var(--font-primary);
    margin-bottom: 2rem;
}

.add-items-btn {
    background: var(--canvas);
    color: var(--tech-blue);
    border: var(--border-width) solid var(--tech-blue);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: var(--border-radius);
}

.add-items-btn:hover {
    background: var(--tech-blue);
    color: var(--canvas);
    transform: scale(0.98);
}

.cart-footer {
    padding: 2rem;
    border-top: var(--border-width) solid var(--grid-lines);
}

.cart-summary {
    margin-bottom: 2rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--silver);
}

.total-row {
    font-weight: 600;
    color: var(--ink);
    font-size: 1rem;
    padding-top: 1rem;
    border-top: var(--border-width) solid var(--grid-lines);
}

.checkout-button {
    width: 100%;
    background: var(--tech-blue);
    color: var(--canvas);
    border: var(--border-width) solid var(--tech-blue);
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: var(--border-radius);
}

.checkout-button:hover {
    background: var(--ink);
    border-color: var(--ink);
    transform: scale(0.98);
}

.checkout-button:active {
    transform: scale(0.95);
}

/* Wishlist Toast */
.wishlist-toast {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    background: var(--ink);
    color: var(--canvas);
    padding: 1rem 1.5rem;
    transform: translateY(100px);
    transition: transform var(--transition-normal);
    z-index: 1002;
}

.wishlist-toast.show {
    transform: translateY(0);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.toast-icon {
    font-size: 1.2rem;
}

.toast-message {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

/* Specific overrides for legacy cart elements */
.shopping-cart-sidebar,
.nav-sidebar,
.cart-sidebar:not(#cartSidebar) {
    display: none !important;
    visibility: hidden !important;
}

/* Ensure our specific cart sidebar works correctly */
#cartSidebar {
    z-index: 1001;
}

/* About Section */
.about-section {
    padding: 6rem 0;
    background: var(--canvas);
    border-bottom: var(--border-width) solid var(--grid-lines);
}

.section-badge {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--tech-blue);
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    padding: 0.5rem 1rem;
    border: var(--border-width) solid var(--tech-blue);
    display: inline-block;
    width: fit-content;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--silver);
    margin-bottom: 3rem;
    line-height: 1.4;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
}

.about-image {
    position: relative;
    overflow: hidden;
    border: var(--border-width) solid var(--grid-lines);
}

.about-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    filter: saturate(0.8);
    transition: all var(--transition-normal);
}

.about-image:hover img {
    filter: saturate(1);
    transform: scale(1.02);
}

.about-text h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 1.5rem;
    border-bottom: var(--border-width) solid var(--tech-blue);
    padding-bottom: 0.75rem;
}

.about-text h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ink);
    margin: 2rem 0 1rem 0;
}

.about-text p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--ink);
    margin-bottom: 1.5rem;
}

.about-text ul {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.about-text li {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--ink);
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.about-text li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--tech-blue);
    font-weight: 600;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 3rem;
    border-top: var(--border-width) solid var(--grid-lines);
    padding-top: 2rem;
}

.stat-box {
    text-align: center;
    padding: 1.5rem 1rem;
    border: var(--border-width) solid var(--grid-lines);
    transition: all var(--transition-fast);
}

.stat-box:hover {
    border-color: var(--tech-blue);
}

.stat-number {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--tech-blue);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--silver);
    letter-spacing: 0.05em;
}

/* Technical Specifications Section */
.tech-specs-section {
    padding: 6rem 0;
    background: #FAFAFA;
    border-bottom: var(--border-width) solid var(--grid-lines);
}

.specs-comparison {
    background: var(--canvas);
    border: var(--border-width) solid var(--grid-lines);
    overflow: hidden;
}

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

.specs-header {
    display: grid;
    grid-template-columns: 1fr 1.2fr 1.5fr 1.3fr 0.8fr;
    background: var(--ink);
    color: var(--canvas);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.spec-row {
    display: grid;
    grid-template-columns: 1fr 1.2fr 1.5fr 1.3fr 0.8fr;
    border-bottom: var(--border-width) solid var(--grid-lines);
    transition: background var(--transition-fast);
}

.spec-row:hover {
    background: #F8F8F8;
}

.spec-col {
    padding: 1.25rem 1rem;
    border-right: var(--border-width) solid var(--grid-lines);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.spec-col:last-child {
    border-right: none;
}

.spec-row .spec-col:first-child {
    font-weight: 600;
    color: var(--tech-blue);
    background: #FAFAFA;
}

.specs-note {
    padding: 1.5rem;
    background: #FAFAFA;
    border-top: var(--border-width) solid var(--grid-lines);
    font-size: 0.9rem;
    color: var(--silver);
}

/* Customer Reviews Section */
.reviews-section {
    padding: 6rem 0;
    border-bottom: var(--border-width) solid var(--grid-lines);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--grid-lines);
    border: var(--border-width) solid var(--grid-lines);
}

.review-card {
    background: var(--canvas);
    padding: 2rem;
    transition: all var(--transition-normal);
}

.review-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.reviewer-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.reviewer-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    border: var(--border-width) solid var(--grid-lines);
}

.reviewer-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.reviewer-name {
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.25rem;
}

.reviewer-title {
    font-size: 0.85rem;
    color: var(--silver);
}

.review-rating {
    text-align: right;
}

.stars {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--tech-blue);
    margin-bottom: 0.25rem;
}

.review-date {
    font-size: 0.8rem;
    color: var(--silver);
}

.review-content {
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--ink);
}

.review-product {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: var(--border-width) solid var(--grid-lines);
}

.review-product-name {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink);
}

.review-verified {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--tech-blue);
    background: rgba(0, 122, 255, 0.1);
    padding: 0.25rem 0.5rem;
}

/* Support Section */
.support-section {
    padding: 6rem 0;
    background: #FAFAFA;
    border-bottom: var(--border-width) solid var(--grid-lines);
}

.support-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.support-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--grid-lines);
    border: var(--border-width) solid var(--grid-lines);
}

.support-feature {
    background: var(--canvas);
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-fast);
}

.support-feature:hover {
    background: #FAFAFA;
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.support-feature h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.75rem;
}

.support-feature p {
    font-size: 0.9rem;
    color: var(--silver);
    margin-bottom: 1.5rem;
    line-height: 1.4;
}

.feature-btn {
    background: var(--canvas);
    color: var(--tech-blue);
    border: var(--border-width) solid var(--tech-blue);
    padding: 0.75rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: var(--border-radius);
}

.feature-btn:hover {
    background: var(--tech-blue);
    color: var(--canvas);
    transform: scale(0.98);
}

.support-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.faq-section {
    background: var(--canvas);
    border: var(--border-width) solid var(--grid-lines);
    padding: 2rem;
}

.faq-section h3 {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 1.5rem;
    border-bottom: var(--border-width) solid var(--tech-blue);
    padding-bottom: 0.75rem;
}

.faq-item {
    margin-bottom: 1rem;
    border-bottom: var(--border-width) solid var(--grid-lines);
    padding-bottom: 1rem;
}

.faq-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.faq-question {
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.faq-answer {
    font-size: 0.9rem;
    color: var(--silver);
    line-height: 1.4;
}

.contact-hours {
    background: var(--canvas);
    border: var(--border-width) solid var(--grid-lines);
    padding: 2rem;
}

.contact-hours h4 {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 1rem;
}

.contact-hours p {
    font-size: 0.9rem;
    color: var(--silver);
    line-height: 1.4;
    margin-bottom: 1rem;
}

.support-email {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--tech-blue) !important;
}

/* Newsletter Section */
.newsletter-section {
    padding: 6rem 0;
    background: var(--ink);
    color: var(--canvas);
    border-bottom: var(--border-width) solid var(--grid-lines);
}

.newsletter-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.newsletter-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.newsletter-text p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    line-height: 1.4;
}

.newsletter-subtitle {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--tech-blue);
    margin-bottom: 2rem;
    letter-spacing: 0.05em;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.newsletter-input {
    flex: 1;
    padding: 1rem;
    border: var(--border-width) solid var(--canvas);
    background: var(--canvas);
    color: var(--ink);
    font-family: var(--font-primary);
    font-size: 1rem;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--tech-blue);
    box-shadow: 0 0 0 2px rgba(0, 122, 255, 0.2);
}

.newsletter-input::placeholder {
    color: var(--silver);
}

.newsletter-btn {
    background: var(--tech-blue);
    color: var(--canvas);
    border: var(--border-width) solid var(--tech-blue);
    padding: 1rem 2rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: var(--border-radius);
    white-space: nowrap;
}

.newsletter-btn:hover {
    background: var(--canvas);
    color: var(--tech-blue);
    transform: scale(0.98);
}

.newsletter-benefits {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.benefit {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.benefit-icon {
    font-size: 1rem;
}

/* Footer */
.main-footer {
    background: var(--canvas);
    border-bottom: var(--border-width) solid var(--grid-lines);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr 1fr;
    gap: 3rem;
    padding: 4rem 0;
}

.footer-section h4 {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 1.5rem;
    border-bottom: var(--border-width) solid var(--tech-blue);
    padding-bottom: 0.5rem;
}

.footer-logo {
    font-family: var(--font-primary);
    font-size: 2rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 1rem;
}

.footer-description {
    font-size: 0.9rem;
    color: var(--silver);
    line-height: 1.5;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--silver);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: var(--border-width) solid var(--grid-lines);
    transition: all var(--transition-fast);
}

.social-link:hover {
    color: var(--tech-blue);
    border-color: var(--tech-blue);
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-link {
    font-size: 0.9rem;
    color: var(--silver);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--tech-blue);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    border-top: var(--border-width) solid var(--grid-lines);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--silver);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .specs-header, .spec-row {
        grid-template-columns: 1fr 1.5fr 1.8fr;
    }

    .specs-header .spec-col:last-child,
    .spec-row .spec-col:last-child {
        display: none;
    }

    .support-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 968px) {
    .hero-content {
        padding: 2rem;
    }

    .product-title {
        font-size: 2rem;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-row {
        flex-wrap: wrap;
        padding: 0 1rem;
        gap: 1rem;
    }

    .search-section {
        order: 3;
        flex: 1 1 100%;
    }

    .hero-container {
        flex-direction: column;
        padding: 2rem 1rem;
    }

    .hero-content {
        flex: none;
        width: 100%;
        border-right: none;
        border-bottom: var(--border-width) solid var(--grid-lines);
        padding: 2rem 1rem 2rem 0;
    }

    .hero-image {
        flex: none;
        width: 100%;
        height: 300px;
    }

    .slider-controls {
        bottom: 2rem;
        right: 1rem;
    }

    .category-list {
        overflow-x: auto;
        white-space: nowrap;
        padding: 1rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
        gap: 1px;
    }

    .cart-sidebar {
        width: 100%;
        right: -100%;
    }

    /* New responsive styles for additional sections */
    .about-section, .tech-specs-section, .reviews-section, .support-section, .newsletter-section {
        padding: 4rem 0;
    }

    .about-content {
        gap: 2rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .specs-header, .spec-row {
        grid-template-columns: 1fr 1.5fr;
    }

    .specs-header .spec-col:nth-child(3),
    .spec-row .spec-col:nth-child(3) {
        display: none;
    }

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

    .support-features {
        grid-template-columns: 1fr;
    }

    .support-content {
        gap: 2rem;
    }

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

    .newsletter-benefits {
        flex-direction: column;
        gap: 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .control-label {
        display: none;
    }

    .control-content {
        flex-direction: row;
        gap: 0.5rem;
    }

    .product-title {
        font-size: 1.5rem;
    }

    .control-section {
        gap: 0.5rem;
    }

    .container {
        padding: 0 1rem;
    }
}