:root {
    --color-bg-white: #FFFFFF;
    --color-bg-light: #fcf8fa;
    --color-brand-primary: #000000;
    --color-text-charcoal: #1b1b1d;
    --color-text-secondary: #5b5f61;
    --color-accent-industrial: #F97316; /* Safety Orange */
    --color-accent-yellow: #FACC15; /* Industrial Yellow */
    --color-border-flat: #CBD5E1; /* Blueprint Line */
}

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

body {
    background-color: var(--color-bg-light);
    color: var(--color-text-charcoal);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Typography styles matching Hanken Grotesk from design system */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-brand-primary);
    font-family: 'Hanken Grotesk', 'Outfit', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

/* Technical Label Caps (JetBrains Mono) */
.label-caps {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.technical-data {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    line-height: 1.5;
}

a {
    color: var(--color-brand-primary);
    text-decoration: none;
    transition: color 0.2s ease-in-out;
}

a:hover {
    color: var(--color-accent-industrial);
}

/* Blueprint Line Layouts */
.blueprint-border {
    border: 1px solid var(--color-border-flat) !important;
    border-radius: 0.25rem !important;
    box-shadow: none !important;
}

.blueprint-divider-v {
    border-left: 1px solid var(--color-border-flat);
}

.blueprint-divider-h {
    border-top: 1px solid var(--color-border-flat);
}

.flat-button {
    background-color: var(--color-brand-primary);
    color: var(--color-bg-white);
    border: 1px solid var(--color-brand-primary);
    padding: 10px 24px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    cursor: pointer;
    border-radius: 0.25rem;
    transition: all 0.2s ease;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.flat-button:hover {
    background-color: var(--color-accent-industrial);
    border-color: var(--color-accent-industrial);
    color: var(--color-bg-white);
}

.flat-button-secondary {
    background-color: transparent;
    color: var(--color-brand-primary);
    border: 1px solid var(--color-brand-primary);
    padding: 10px 24px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    cursor: pointer;
    border-radius: 0.25rem;
    transition: all 0.2s ease;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.flat-button-secondary:hover {
    background-color: var(--color-bg-light);
    border-color: var(--color-accent-industrial);
    color: var(--color-accent-industrial);
}

/* Preloader overlay design */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-light);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.preloader-container {
    position: relative;
    width: 100px;
    height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.preloader-ring {
    position: absolute;
    width: 80px;
    height: 80px;
    border: 3px solid var(--color-bg-white);
    border-top: 3px solid var(--color-brand-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.preloader-logo {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-brand-primary);
    z-index: 2;
    letter-spacing: -0.05em;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Sticky Header Layout */
header {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border-flat);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    font-size: 16px;
    color: var(--color-text-secondary);
}

.nav-links a:hover, .nav-links a.active {
    color: var(--color-brand-primary);
    border-bottom: 2px solid var(--color-brand-primary);
    padding-bottom: 4px;
}

/* Footer Section */
footer {
    background-color: var(--color-bg-light);
    border-top: 1px solid var(--color-border-flat);
    padding: 80px 0 32px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 24px;
    margin-bottom: 80px;
}

.footer-column h5 {
    margin-bottom: 24px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-brand-primary);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: var(--color-text-secondary);
    font-size: 14px;
}

.footer-column ul li a:hover {
    color: var(--color-accent-industrial);
}

.footer-bottom {
    border-top: 1px solid var(--color-border-flat);
    padding-top: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: var(--color-text-secondary);
}

/* Product Card Styling */
.product-card {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border-flat);
    padding: 24px;
    display: flex;
    flex-direction: column;
    height: 100%;
    border-radius: 0.25rem;
}

.product-image-wrapper {
    height: 220px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border-flat);
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
    border-radius: 0.25rem;
}

.product-image-wrapper img {
    max-height: 80%;
    max-width: 80%;
    object-fit: contain;
}

.product-brand {
    font-size: 12px;
    font-family: 'JetBrains Mono', monospace;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.product-name {
    font-size: 18px;
    margin-bottom: 12px;
    font-weight: 600;
}

.product-sku {
    font-size: 14px;
    font-family: 'JetBrains Mono', monospace;
    background: var(--color-bg-light);
    padding: 4px 8px;
    border: 1px solid var(--color-border-flat);
    align-self: flex-start;
    margin-bottom: 20px;
    border-radius: 0.25rem;
}

.product-specs {
    margin-top: auto;
    border-top: 1px solid var(--color-border-flat);
    padding-top: 20px;
    margin-bottom: 24px;
}

.product-spec-item {
    font-size: 14px;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
}

.product-spec-item span {
    font-weight: 600;
    color: var(--color-brand-primary);
}

.product-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* Category Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.category-box {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border-flat);
    padding: 40px 24px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border-radius: 0.25rem;
}

.category-box:hover {
    border-color: var(--color-brand-primary);
    background-color: var(--color-bg-light);
}

.category-icon {
    font-size: 2.50rem;
    color: var(--color-brand-primary);
    margin-bottom: 20px;
}

.category-name {
    font-size: 18px;
    font-weight: 600;
}

/* Responsive Rules */
@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .header-container {
        flex-direction: column;
        gap: 16px;
    }
    .nav-links {
        gap: 16px;
    }
}