:root {
    --bg: #f5f7fb;
    --card: #ffffff;
    --text: #172033;
    --muted: #687386;
    --border: #dbe2ee;
    --accent: #1f5eff;
    --accent-dark: #173fb0;
    --danger: #b3261e;
    --soft: #eef3ff;
    --shadow: 0 18px 50px rgba(23, 32, 51, 0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    background: radial-gradient(circle at top left, #eef3ff, var(--bg) 40%);
    min-height: 100vh;
}

.site-header,
.site-footer {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
}

.brand-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-mark {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    background: var(--text);
    color: white;
    font-weight: 700;
    letter-spacing: 0.06em;
}

.brand-name { font-size: 16px; font-weight: 700; }
.brand-subtitle { font-size: 13px; color: var(--muted); margin-top: 2px; }

.header-link {
    color: var(--accent-dark);
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
}

.page-shell {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto 40px;
}

.hero-card,
.product-hero,
.content-card,
.info-grid article {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--border);
    border-radius: 28px;
    box-shadow: var(--shadow);
}

.hero-card {
    padding: clamp(24px, 5vw, 56px);
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 32px;
    align-items: center;
}

.hero-card.compact { min-height: 360px; }
.error-card { border-color: rgba(179, 38, 30, 0.28); }

.eyebrow {
    color: var(--accent-dark);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 12px;
    margin: 0 0 10px;
}

h1, h2, h3 { margin-top: 0; }
h1 { font-size: clamp(32px, 5vw, 58px); line-height: 1.02; margin-bottom: 18px; }
h2 { font-size: 24px; margin-bottom: 16px; }
h3 { font-size: 18px; margin-bottom: 8px; }

.lead {
    font-size: 18px;
    line-height: 1.65;
    color: var(--muted);
    margin: 0 0 22px;
}

.lookup-form {
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 22px;
    background: var(--soft);
}

.lookup-form label {
    display: block;
    font-weight: 700;
    margin-bottom: 10px;
}

.lookup-row {
    display: flex;
    gap: 8px;
}

.lookup-row input {
    min-width: 0;
    flex: 1;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px;
    font-size: 16px;
    text-transform: uppercase;
}

button,
.button-primary,
.button-secondary {
    border: 0;
    border-radius: 12px;
    padding: 14px 18px;
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

button,
.button-primary {
    background: var(--accent);
    color: white;
}

.button-secondary {
    background: var(--soft);
    color: var(--accent-dark);
    border: 1px solid #cbd9ff;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 18px;
}

.info-grid article,
.content-card { padding: 24px; }
.info-grid p, .content-card p { color: var(--muted); line-height: 1.6; }

.product-hero {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 32px;
    padding: clamp(24px, 5vw, 44px);
    align-items: center;
}

.variant {
    font-size: 22px;
    color: var(--accent-dark);
    font-weight: 700;
    margin: 0 0 18px;
}

.code-badge {
    display: inline-block;
    margin-left: 8px;
    padding: 5px 9px;
    border-radius: 999px;
    background: var(--soft);
    color: var(--text);
    letter-spacing: normal;
}

.meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 20px 0 24px;
}

.meta-row span {
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 8px 12px;
    color: var(--muted);
    background: #fff;
    font-size: 13px;
}

.product-image-card {
    background: linear-gradient(135deg, #f8fbff, #e9efff);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 24px;
    text-align: center;
}

.product-image-card img {
    width: min(100%, 360px);
    height: auto;
}

.content-card { margin-top: 18px; }

.spec-table {
    border: 1px solid var(--border);
    border-radius: 18px;
    overflow: hidden;
}

.spec-row {
    display: grid;
    grid-template-columns: 260px 1fr;
    border-bottom: 1px solid var(--border);
}

.spec-row:last-child { border-bottom: 0; }
.spec-row div { padding: 14px 16px; }
.spec-row div:first-child { background: #f8faff; font-weight: 700; }

.download-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.download-card {
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 18px;
    background: #fff;
}

.download-card.is-pending { opacity: 0.72; }
.download-card p { min-height: 44px; margin-bottom: 14px; }

.download-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.download-meta span,
.pending-label {
    display: inline-flex;
    border-radius: 999px;
    background: #f1f4f9;
    padding: 6px 10px;
    font-size: 12px;
    color: var(--muted);
}

.support-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.site-footer {
    padding: 22px 0 34px;
    display: flex;
    justify-content: space-between;
    color: var(--muted);
    font-size: 13px;
}

@media (max-width: 760px) {
    .site-header { align-items: flex-start; gap: 16px; flex-direction: column; }
    .hero-card,
    .product-hero,
    .info-grid,
    .download-grid { grid-template-columns: 1fr; }
    .lookup-row { flex-direction: column; }
    .spec-row { grid-template-columns: 1fr; }
    .site-footer { flex-direction: column; gap: 8px; }
}