/* Acid Swiss Industrial Design System */
@import url('https://fonts.googleapis.com/css2?family=Archivo+Black&family=JetBrains+Mono:wght@400;700&family=Inter:wght@400;900&display=swap');

:root {
    --bg: #FFFFFF;
    --text: #000000;
    --primary: #FF003C;
    /* Acid Red */
    --secondary: #F0F0F0;
    --border: 2px solid #000000;
    --border-thin: 1px solid #000000;
    --font-header: 'Archivo Black', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-body: 'Inter', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    border-radius: 0 !important;
    /* Force technical sharp edges */
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg);
}

body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.2;
}

/* Typography */
h1,
h2,
h3 {
    font-family: var(--font-header);
    text-transform: uppercase;
    line-height: 0.9;
}

.mono {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

/* Layout Elements */
.category-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: #000;
    color: #FFF;
    display: flex;
    overflow-x: auto;
    border-bottom: var(--border);
    scrollbar-width: none;
}

.category-nav::-webkit-scrollbar {
    display: none;
}

.category-nav a {
    color: #AAA;
    text-decoration: none;
    font-family: var(--font-header);
    padding: 20px 30px;
    font-size: 0.8rem;
    white-space: nowrap;
    border-right: 1px solid #333;
    transition: 0.1s;
}

.category-nav a.active {
    background: var(--primary);
    color: #000;
}

/* Product Cards as Technical Sheets */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 0;
    /* Industrial Grid */
    border-left: var(--border-thin);
    border-top: var(--border-thin);
}

.product-card {
    border-right: var(--border-thin);
    border-bottom: var(--border-thin);
    padding: 0;
    display: flex;
    flex-direction: column;
    background: #FFF;
}

.product-img-wrapper {
    width: 100%;
    aspect-ratio: 16/9;
    border-bottom: var(--border-thin);
    filter: grayscale(100%) contrast(120%);
    transition: 0.3s;
}

.product-card:hover .product-img-wrapper {
    filter: grayscale(0%) contrast(100%);
}

.product-content {
    padding: 30px;
    flex-grow: 1;
}

.product-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.product-name {
    font-family: var(--font-header);
    font-size: 1.8rem;
    max-width: 70%;
}

.product-price {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.2rem;
    background: #000;
    color: #FFF;
    padding: 5px 10px;
}

.product-desc {
    font-size: 0.9rem;
    margin-bottom: 30px;
    color: #444;
}

.btn-add {
    width: 100%;
    padding: 20px;
    background: #000;
    color: #FFF;
    border: none;
    font-family: var(--font-header);
    font-size: 1rem;
    cursor: pointer;
    transition: 0.1s;
}

.btn-add:hover {
    background: var(--primary);
    color: #000;
}

/* Cart Bar - Industrial Command Line style */
.cart-bar {
    position: fixed;
    bottom: 0;
    width: 100%;
    background: #FF003C;
    color: #000;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: var(--border);
    font-family: var(--font-mono);
    font-weight: 700;
    z-index: 2000;
}