/* ============================================================
   Design tokens — inspired by engineering blueprints & drafting
   ============================================================ */
:root {
    --ink: #1C232E;
    --ink-soft: #4B5563;
    --blueprint: #123A5C;
    --blueprint-light: #1D5C8C;
    --paper: #EDF0EE;
    --paper-line: rgba(18, 58, 92, 0.07);
    --accent: #E8890C;
    --price: #1E7A46;
    --card-bg: #FFFFFF;
    --border: #D8DCD3;

    --font-display: 'Cairo', 'Tajawal', sans-serif;
    --font-body: 'IBM Plex Sans Arabic', 'Tajawal', sans-serif;
    --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
}

* { box-sizing: border-box; }

body {
    font-family: var(--font-body);
    color: var(--ink);
    margin: 0;
    background-color: var(--paper);
    background-image:
        linear-gradient(var(--paper-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--paper-line) 1px, transparent 1px);
    background-size: 28px 28px;
}

a { color: inherit; }

header.site-header {
    background: var(--blueprint);
    color: #fff;
    border-bottom: 3px solid var(--accent);
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.brand-mark {
    width: 34px;
    height: 34px;
    flex-shrink: 0;
}

.brand-text {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.35rem;
    letter-spacing: 0.2px;
}

.brand-text .sub {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 400;
    letter-spacing: 2px;
    color: #BFD4E6;
    text-transform: uppercase;
}

.search-form {
    display: flex;
    flex: 1;
    max-width: 420px;
    min-width: 220px;
}

.search-form input {
    flex: 1;
    border: none;
    padding: 10px 14px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    border-radius: 4px 0 0 4px;
}

.search-form button {
    border: none;
    background: var(--accent);
    color: #1C232E;
    font-weight: 700;
    padding: 0 16px;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}

main {
    max-width: 1100px;
    margin: 32px auto;
    padding: 0 24px;
}

footer {
    text-align: center;
    color: var(--ink-soft);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 24px;
    line-height: 2;
}

footer a {
    color: var(--blueprint-light);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

.category-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 28px;
}

.chip {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    text-decoration: none;
    padding: 6px 14px;
    border: 1px solid var(--blueprint);
    border-radius: 999px;
    color: var(--blueprint);
    background: transparent;
    white-space: nowrap;
}

.chip.active {
    background: var(--blueprint);
    color: #fff;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 24px;
}

.product-card {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 22px;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.product-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(18, 58, 92, 0.12);
}

.product-card::before,
.product-card::after {
    content: "";
    position: absolute;
    width: 14px;
    height: 14px;
    border-color: var(--accent);
    border-style: solid;
    border-width: 0;
}

.product-card::before {
    top: -1px;
    right: -1px;
    border-top-width: 3px;
    border-right-width: 3px;
}

.product-card::after {
    bottom: -1px;
    left: -1px;
    border-bottom-width: 3px;
    border-left-width: 3px;
}

.product-card img {
    width: 100%;
    border-radius: 3px;
    margin-bottom: 12px;
}

.product-card h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin: 0 0 4px;
}

.product-card h3 a {
    text-decoration: none;
}

.category-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.5px;
    color: var(--blueprint-light);
    text-transform: uppercase;
    margin-bottom: 8px;
}

.product-card p.desc {
    color: var(--ink-soft);
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0 0 14px;
}

.price {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--price);
    font-size: 1.05rem;
}

.btn {
    display: inline-block;
    background: var(--blueprint);
    color: #fff;
    padding: 9px 18px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    margin-top: 10px;
}

.btn:hover { background: var(--blueprint-light); }

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--blueprint);
    color: var(--blueprint);
}

.product-detail {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 32px;
}

.breadcrumb {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--ink-soft);
    text-decoration: none;
    margin-bottom: 18px;
    display: inline-block;
}

.product-detail h1 {
    font-family: var(--font-display);
    font-size: 1.7rem;
    margin: 6px 0 4px;
}

.spec-row {
    display: flex;
    border-top: 1px dashed var(--border);
    padding: 10px 0;
    font-size: 0.9rem;
}

.spec-row .label {
    width: 160px;
    color: var(--ink-soft);
    font-family: var(--font-mono);
    font-size: 0.78rem;
}

form.simple-form {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 24px;
    max-width: 420px;
}

form.simple-form label {
    display: block;
    margin-top: 12px;
    font-weight: 700;
    font-size: 0.9rem;
}

form.simple-form input {
    width: 100%;
    padding: 9px;
    margin-top: 4px;
    border: 1px solid var(--border);
    border-radius: 4px;
    box-sizing: border-box;
    font-family: var(--font-body);
}