:root {
    --primary: #B11226;
    --primary-hover: #8e0e1e;
    --charcoal: #1A1A1A;
    --gray-bg: #F5F5F5;
    --border: #E2E2E2;
    --white: #FFFFFF;
    --text-main: #1A1A1A;
    --text-muted: #666666;
}

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

.text-charcoal {
    color: var(--charcoal) !important;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.2s ease;
}

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

body {
    font-family: 'Inter', 'Roboto', sans-serif;
    color: var(--text-main);
    background-color: var(--white);
    line-height: 1.6;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--charcoal);
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

/* Spacing Utilities */
.section-padding {
    padding-top: 80px;
    padding-bottom: 80px;
}

/* Button System */
.btn-primary {
    background-color: var(--primary) !important;
    border-color: var(--primary) !important;
    color: var(--white) !important;
    border-radius: 4px !important;
    padding: 10px 24px !important;
    font-weight: 600 !important;
    text-transform: none !important;
    transition: all 0.2s ease !important;
    box-shadow: none !important;
}

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

.btn-secondary {
    background-color: var(--white) !important;
    border: 1px solid var(--charcoal) !important;
    color: var(--charcoal) !important;
    border-radius: 4px !important;
    padding: 10px 24px !important;
    font-weight: 600 !important;
    transition: all 0.2s ease !important;
    box-shadow: none !important;
}

.btn-secondary:hover {
    background-color: var(--gray-bg) !important;
}

/* Card System */
.b2b-card {
    background-color: var(--white);
    border: 1px solid var(--border);
    padding: 20px;
    border-radius: 4px;
    transition: border-color 0.2s ease;
}

.b2b-card:hover {
    border-color: var(--primary);
}

/* Product Cards */
.product-card {
    border: 1px solid var(--border);
    background: var(--white);
    border-radius: 4px;
    overflow: hidden;
    height: 100%;
}

.product-card-img {
    height: 200px;
    object-fit: cover;
    width: 100%;
    border-bottom: 1px solid var(--border);
}

.product-card-body {
    padding: 16px;
}

.product-card-brand {
    color: var(--primary);
    text-transform: uppercase;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

.product-card-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--charcoal);
}

.product-card-price {
    font-size: 18px;
    font-weight: 800;
    color: var(--charcoal);
}

/* Filter Sidebar */
.filter-section-title {
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--charcoal);
    margin-bottom: 16px;
    letter-spacing: 0.1em;
}

.filter-divider {
    height: 1px;
    background-color: var(--border);
    margin: 24px 0;
}

.filter-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-muted);
    cursor: pointer;
    margin-bottom: 10px;
}

.filter-checkbox input {
    accent-color: var(--primary);
}

/* Navigation */
.nav-link.active {
    color: var(--primary) !important;
    border-bottom: 2px solid var(--primary);
}

/* Header */
.main-header {
    background-color: var(--white);
    border-bottom: 1px solid var(--border);
}

/* Tables (Specs) */
.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table td {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.specs-table .label {
    font-weight: 700;
    color: var(--text-muted);
    width: 30%;
}

/* Layout Container */
.b2b-container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
}