/* css/products/product-page.css */

/* ── Hero banner ── */
.product-hero {
  background: var(--black);
  color: var(--white);
  padding: 80px 0 64px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.product-hero-inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 6rem;
  align-items: end;
}

.product-back {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 2.5rem; cursor: pointer;
  transition: color var(--ease-base);
}
.product-back:hover { color: rgba(255,255,255,0.8); }

.product-hero-cat {
  font-family: var(--font-mono); font-size: 0.62rem;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: rgba(255,255,255,0.35); margin-bottom: 1rem;
}

.product-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 5.5rem);
  font-weight: 600; line-height: 1; letter-spacing: -0.02em;
  color: var(--white); margin-bottom: 1rem;
}

.product-hero-sub {
  font-size: 1rem; color: rgba(255,255,255,0.5);
  font-weight: 300; line-height: 1.7; max-width: 520px; margin-bottom: 2rem;
}

/* Metadata panel (right side) */
.product-meta-panel { display: flex; flex-direction: column; border: 1px solid rgba(255,255,255,0.1); }
.product-meta-row {
  display: grid; grid-template-columns: 110px 1fr; gap: 1rem;
  padding: 16px 20px; border-bottom: 1px solid rgba(255,255,255,0.08); align-items: start;
}
.product-meta-row:last-child { border-bottom: none; }
.product-meta-key { font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(255,255,255,0.3); }
.product-meta-val { font-size: 0.82rem; color: rgba(255,255,255,0.7); font-weight: 300; }

/* ── Body ── */
.product-body { padding: 80px 0; }

.product-about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-bottom: 64px;
}

.product-about-title {
  font-family: var(--font-display); font-size: 2rem;
  font-weight: 600; letter-spacing: -0.01em; margin-bottom: 1.5rem;
}
.product-about-text {
  font-size: 0.92rem; color: var(--mid-grey);
  font-weight: 300; line-height: 1.75; margin-bottom: 1.2rem;
}

/* Feature 2×2 grid */
.product-features-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 1px; background: var(--rule); border: 1px solid var(--rule);
}
.feature-item { background: var(--white); padding: 28px 24px; }
.feature-title {
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--black); margin-bottom: 8px;
}
.feature-body { font-size: 0.82rem; color: var(--mid-grey); font-weight: 300; line-height: 1.6; }

/* ── Product Range ── */
.product-range { margin-top: 64px; }
.product-range-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 2rem; padding-bottom: 1rem; border-bottom: 1px solid var(--rule);
}
.product-range-title {
  font-family: var(--font-display); font-size: 1.6rem; font-weight: 600;
}

.product-range-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--rule); border: 1px solid var(--rule);
}
.range-item { background: var(--white); padding: 28px 24px; }
.range-item-name  { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; }
.range-item-desc  { font-size: 0.8rem; color: var(--mid-grey); font-weight: 300; line-height: 1.6; }
.range-item-specs { margin-top: 1rem; display: flex; flex-direction: column; gap: 4px; }
.range-spec       { font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--light-grey); }

/* ── Applications ── */
.product-applications {
  background: var(--black); color: var(--white); padding: 64px 0;
}
.product-applications .tag       { color: rgba(255,255,255,0.35); }
.product-applications .tag::before { background: rgba(255,255,255,0.25); }
.product-applications .display   { color: var(--white); }

.applications-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.08); margin-top: 40px;
}
.application-item { background: var(--black); padding: 28px 22px; transition: background var(--ease-base); }
.application-item:hover { background: #111; }
.application-name { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; color: var(--white); margin-bottom: 6px; }
.application-desc { font-size: 0.78rem; color: rgba(255,255,255,0.4); font-weight: 300; line-height: 1.55; }

/* ── CTA strip ── */
.product-cta { background: var(--bg); border-top: 1px solid var(--rule); padding: 64px 0; }
.product-cta-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 3rem; flex-wrap: wrap;
}
.product-cta-title { font-family: var(--font-display); font-size: 2.2rem; font-weight: 600; margin-bottom: 0.5rem; }
.product-cta-sub   { color: var(--mid-grey); font-size: 0.92rem; }
.product-cta-btns  { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .product-hero-inner  { grid-template-columns: 1fr; gap: 3rem; }
  .product-about-grid  { grid-template-columns: 1fr; }
  .product-range-grid  { grid-template-columns: repeat(2, 1fr); }
  .applications-grid   { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .product-features-grid { grid-template-columns: 1fr; }
  .product-range-grid    { grid-template-columns: 1fr; }
  .applications-grid     { grid-template-columns: 1fr; }
}