/* ============================================================
   Pages (Phase 4) — page hero · product detail · specs · forms
   ============================================================ */

/* ---------- Inner page hero ---------- */
.page-hero {
  position: relative;
  background: var(--navy-950);
  color: #fff;
  margin-top: -76px;
  padding: calc(76px + clamp(48px, 7vw, 96px)) 0 clamp(40px, 5vw, 72px);
  overflow: hidden;
  isolation: isolate;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
}

.page-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    rgba(8, 14, 26, 0.95),
    rgba(8, 14, 26, 0.6)
  );
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel-300);
  margin-bottom: 18px;
}

.breadcrumb a:hover {
  color: var(--accent);
}

.breadcrumb [aria-current] {
  color: var(--accent);
}

.page-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.015em;
  line-height: 1.06;
  font-size: clamp(1.9rem, 3.6vw + 1rem, 3.2rem);
  max-width: 20ch;
  text-wrap: balance;
}

.page-hero .lead {
  margin-top: 14px;
  color: #cfd7e3;
  max-width: 64ch;
}

/* ---------- Product detail layout ---------- */
.pd-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}

.pd-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  position: sticky;
  top: 110px;
}

.pd-gallery img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--navy-800);
}

.pd-gallery img:first-child {
  grid-column: 1 / -1;
  aspect-ratio: 16 / 10;
}

.pd-body h2 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy-900);
  margin: 30px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}

.pd-body h2:first-child {
  margin-top: 0;
}

.pd-body p {
  color: var(--text-muted-light);
  font-size: 15.5px;
}

.pd-body p + p {
  margin-top: 10px;
}

.pd-list {
  margin: 6px 0 4px;
  display: grid;
  gap: 10px;
}

.pd-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14.5px;
  color: var(--navy-800);
}

.pd-list li::before {
  content: "";
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  background:
    linear-gradient(#fff, #fff) center / 10px 2px no-repeat,
    linear-gradient(#fff, #fff) center / 2px 10px no-repeat,
    var(--accent);
  border-radius: 2px;
}

/* Spec table — honest placeholder state until client supplies data */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin-top: 6px;
}

.spec-table th,
.spec-table td {
  text-align: left;
  padding: 11px 14px;
  border: 1px solid var(--line-light);
}

.spec-table th {
  font-family: var(--font-display);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--navy-900);
  color: #fff;
  border-color: var(--navy-900);
}

.spec-table td.spec-tbd {
  color: var(--steel-500);
  font-style: italic;
}

.spec-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-muted-light);
  border-left: 3px solid var(--accent);
  padding-left: 12px;
}

.pd-cta {
  margin-top: 30px;
  background: var(--navy-900);
  color: #fff;
  border-radius: var(--radius);
  padding: 26px 28px;
}

.pd-cta strong {
  display: block;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.pd-cta p {
  color: var(--text-muted-dark);
  font-size: 14px;
  margin-bottom: 16px;
}

.pd-cta__row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .pd-grid {
    grid-template-columns: 1fr;
  }
  .pd-gallery {
    position: static;
  }
}

/* ---------- Related products ---------- */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.related-card {
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  background: #fff;
  padding: 14px;
  transition:
    border-color var(--dur-2) var(--ease),
    transform var(--dur-2) var(--ease);
}

.related-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.related-card img {
  width: 84px;
  height: 84px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex: none;
  background: var(--navy-800);
}

.related-card h3 {
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--navy-900);
  line-height: 1.35;
}

.related-card span {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

@media (max-width: 860px) {
  .related-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Quote form (B2B) ---------- */
.form-shell {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.form-side {
  background: var(--navy-900);
  color: #fff;
  border-radius: var(--radius);
  padding: 30px 28px;
  position: sticky;
  top: 110px;
}

.form-side h2 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 8px;
}

.form-side p {
  font-size: 14px;
  color: var(--text-muted-dark);
}

.form-side__rows {
  margin-top: 20px;
  display: grid;
  gap: 14px;
  font-size: 14px;
}

.form-side__rows a {
  color: #fff;
  font-weight: 600;
}

.form-side__rows a:hover {
  color: var(--accent);
}

.quote-form {
  background: #fff;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  padding: clamp(22px, 3vw, 36px);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  font-family: var(--font-display);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy-900);
}

.field label i {
  font-style: normal;
  color: var(--accent-strong);
}

.field input,
.field select,
.field textarea {
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 14.5px;
  background: #fff;
  width: 100%;
}

.field textarea {
  min-height: 130px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.field [aria-invalid="true"] {
  border-color: #c81e1e;
}

.field__error {
  font-size: 12.5px;
  color: #c81e1e;
  display: none;
}

.field__error.is-shown {
  display: block;
}

.field__hint {
  font-size: 12.5px;
  color: var(--text-muted-light);
}

/* Success state */
.form-success {
  text-align: left;
  display: none;
}

.form-success.is-shown {
  display: block;
}

.form-success__tick {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 28px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}

.form-success h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--navy-900);
}

.form-success p {
  color: var(--text-muted-light);
  font-size: 15px;
  margin: 10px 0 20px;
  max-width: 52ch;
}

.form-success__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .form-shell {
    grid-template-columns: 1fr;
  }
  .form-side {
    position: static;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.contact-card {
  border: 1px solid var(--line-light);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  background: #fff;
  padding: 26px 24px;
}

.contact-card h2 {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin-bottom: 10px;
}

.contact-card p,
.contact-card a {
  font-size: 15px;
  color: var(--navy-900);
}

.contact-card a {
  font-weight: 600;
  display: inline-block;
  margin-top: 4px;
}

.contact-card a:hover {
  color: var(--accent-strong);
}

@media (max-width: 860px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .breadcrumb {
    flex-wrap: wrap;
    row-gap: 4px;
  }
  .spec-table th,
  .spec-table td {
    padding: 9px 10px;
    font-size: 13px;
  }
  .pd-cta,
  .form-side {
    padding: 22px 20px;
  }
}