/* AURUM — O que Compramos Page */
/* Metals showcase, category sections, materials grid, category CTAs */

/* ── Metals Showcase ── */

.compramos__metals {
    padding: var(--section-gap) 0;
}
.compramos__metals-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    max-width: 700px;
    margin: 0 auto;
}
.compramos__metal-item {
    background: var(--black-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 24px 16px;
    text-align: center;
    transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.compramos__metal-item:hover {
    border-color: var(--gold);
    background: var(--black-elevated);
}
.compramos__metal-symbol {
    font-family: var(--font-display);
    font-size: clamp(28px, 3vw, 36px);
    font-weight: 300;
    color: var(--gold);
    line-height: 1;
    margin-bottom: 6px;
}
.compramos__metal-name {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--white-muted);
}

/* ── Category Sections ── */

.compramos__category {
    padding: var(--section-gap) 0;
}
.compramos__category:nth-child(even) {
    background: var(--black-rich);
}
.compramos__category-header {
    margin-bottom: clamp(40px, 5vw, 64px);
}
.compramos__category-title {
    font-family: var(--font-display);
    font-size: clamp(22px, 2.2vw, 28px);
    font-weight: 300;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 16px;
}
.compramos__category-desc {
    font-size: 15px;
    color: var(--white-muted);
    max-width: 600px;
    line-height: 1.8;
}

/* ── Materials Grid ── */

.compramos__materials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 40px;
}
.compramos__material-item {
    background: var(--black-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 20px 24px;
    font-size: 14px;
    color: var(--white-off);
    transition: border-color 0.3s var(--ease);
}
.compramos__material-item:hover {
    border-color: var(--gold-dark);
}

/* ── Category CTA ── */

.compramos__cta {
    display: block;
    width: fit-content;
    margin: 0 auto;
}

/* ── Responsive ── */

@media (max-width: 1024px) {
    .compramos__materials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .compramos__metals-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .compramos__materials-grid {
        grid-template-columns: 1fr;
    }
}