/* ============================================================
   Industry Solutions page (page-industry.php)
   Premium industrial layout on the Quiet Foundry system:
   navy surfaces, white text, one gold accent per section.
   Large spacing, interactive cards, subtle motion.
   ============================================================ */

.ind { background: var(--navy-900); color: var(--white); }
.ind .bg-navy-700 { background: var(--navy-700); }

/* ---------- Shared section rhythm (large spacing) ---------- */
.ind-section { padding-block: var(--space-9); }
.ind-section-head { max-width: 720px; margin-bottom: var(--space-8); }
.ind-section-head-row {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: var(--space-6); max-width: none;
}
.ind-kicker {
  font-size: var(--text-eyebrow); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--gold); font-weight: 700; margin-bottom: var(--space-3);
}
.ind-section-head h2 {
  font-family: var(--font-heading); font-size: clamp(28px, 2.2vw, 36px);
  color: var(--white); line-height: 1.15;
}
.ind-section-sub { color: rgba(255,255,255,0.6); font-size: 16px; margin-top: var(--space-3); max-width: 62ch; }
.ind-subhead {
  font-family: var(--font-heading); font-size: 22px; color: var(--white);
  margin: var(--space-8) 0 var(--space-5);
}
.ind-section-foot { margin-top: var(--space-7); }

/* ============================================================
   1. HERO
   ============================================================ */
.ind-hero {
  position: relative; overflow: hidden;
  padding-top: calc(var(--header-h, 116px) + var(--space-8));
  padding-bottom: var(--space-9);
  background: var(--ind-hero) center / cover no-repeat, var(--navy-900);
}
.ind-hero-scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(11,21,34,0.96) 0%, rgba(11,21,34,0.86) 45%, rgba(11,21,34,0.55) 100%),
    linear-gradient(0deg, var(--navy-900) 0%, transparent 45%);
}
.ind-hero-inner { position: relative; z-index: 1; max-width: 800px; }
.ind-breadcrumb {
  display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center;
  font-size: var(--text-small); color: rgba(255,255,255,0.55);
  margin-bottom: var(--space-6);
}
.ind-breadcrumb a { color: rgba(255,255,255,0.7); text-decoration: none; }
.ind-breadcrumb a:hover { color: var(--gold); }
.ind-eyebrow {
  font-size: var(--text-eyebrow); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--gold); font-weight: 700; margin-bottom: var(--space-4);
}
.ind-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(38px, 4.4vw, 60px); line-height: 1.02;
  color: var(--white); letter-spacing: 0.01em;
}
.ind-hero-sub {
  display: block; margin-top: var(--space-3);
  font-size: clamp(19px, 1.7vw, 26px); color: var(--gold);
  line-height: 1.2;
}
.ind-hero-intro {
  margin-top: var(--space-5); font-size: 17.5px; line-height: 1.7;
  color: rgba(255,255,255,0.82); max-width: 60ch;
}
.ind-hero-cta { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-7); }

/* ============================================================
   2. OVERVIEW
   ============================================================ */
.ind-overview { display: grid; grid-template-columns: 1fr; gap: var(--space-6); }
@media (min-width: 980px) {
  .ind-overview { grid-template-columns: 0.85fr 1.15fr; gap: var(--space-8); align-items: start; }
  .ind-overview .ind-section-head { margin-bottom: 0; position: sticky; top: calc(var(--header-h, 116px) + var(--space-6)); }
}
.ind-overview-body p {
  color: rgba(255,255,255,0.75); font-size: 16.5px; line-height: 1.8;
  margin-bottom: var(--space-5);
}
.ind-overview-body p:last-child { margin-bottom: 0; }
.ind-overview-body strong { color: var(--white); }
.ind-overview-body em { color: rgba(255,255,255,0.9); }

/* ============================================================
   3. CHALLENGES — interactive cards
   ============================================================ */
.ind-challenge-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-5);
}
.ind-challenge {
  position: relative; display: flex; flex-direction: column;
  padding: var(--space-6); border-radius: var(--radius-md);
  background: var(--navy-900); border: 1px solid var(--border-dark);
  text-decoration: none; overflow: hidden;
  transition: border-color var(--duration-base) var(--ease-standard),
              transform var(--duration-base) var(--ease-out-quart),
              box-shadow var(--duration-base) var(--ease-standard);
}
.ind-challenge::after {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0;
  background: var(--gold);
  transition: width 0.45s var(--ease-out-quart);
}
.ind-challenge:hover, .ind-challenge:focus-visible {
  border-color: var(--gold); transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(0,0,0,0.35);
}
.ind-challenge:hover::after, .ind-challenge:focus-visible::after { width: 100%; }
.ind-challenge-icon {
  width: 46px; height: 46px; border-radius: 50%; flex: none;
  display: flex; align-items: center; justify-content: center;
  background: rgba(227,167,18,0.1); color: var(--gold);
  margin-bottom: var(--space-4);
  transition: transform var(--duration-base) var(--ease-out-quart);
}
.ind-challenge:hover .ind-challenge-icon { transform: scale(1.08); }
.ind-challenge-icon svg { width: 22px; height: 22px; }
.ind-challenge h3 { font-size: 17.5px; color: var(--white); margin-bottom: var(--space-3); line-height: 1.35; }
.ind-challenge p { font-size: 14px; color: rgba(255,255,255,0.62); line-height: 1.65; flex: 1; }
.ind-challenge-link {
  margin-top: var(--space-4); font-size: 13px; font-weight: 600;
  color: var(--gold); letter-spacing: 0.02em;
}

/* ============================================================
   4. SOLUTIONS — problem → material
   ============================================================ */
.ind-solution-list { display: flex; flex-direction: column; gap: var(--space-4); }
.ind-solution {
  display: grid; grid-template-columns: 1fr; gap: var(--space-4);
  padding: var(--space-6); border-radius: var(--radius-md);
  background: var(--navy-700); border: 1px solid var(--border-dark);
  transition: border-color var(--duration-base), transform var(--duration-base) var(--ease-out-quart);
}
.ind-solution:hover { border-color: rgba(227,167,18,0.5); transform: translateX(3px); }
@media (min-width: 860px) {
  .ind-solution { grid-template-columns: 1fr auto 1.35fr; align-items: center; gap: var(--space-6); }
}
.ind-solution-badge {
  display: inline-block; font-size: 10.5px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: rgba(255,255,255,0.5); margin-bottom: var(--space-2);
}
.ind-solution-badge-gold { color: var(--gold); }
.ind-solution-problem h3 { font-size: 17px; color: var(--white); line-height: 1.4; }
.ind-solution-arrow { color: var(--gold-dark); display: flex; justify-content: center; }
@media (max-width: 859px) { .ind-solution-arrow { transform: rotate(90deg); } }
.ind-solution-answer h4 { font-size: 17px; margin-bottom: var(--space-2); }
.ind-solution-answer h4 a { color: var(--gold); text-decoration: none; }
.ind-solution-answer h4 a:hover { text-decoration: underline; }
.ind-solution-answer p { font-size: 14.5px; color: rgba(255,255,255,0.68); line-height: 1.7; }
.ind-solution-answer strong { color: var(--white); }

/* ============================================================
   5. CASE STUDIES — premium expandable
   ============================================================ */
.ind-case-list { display: flex; flex-direction: column; gap: var(--space-4); }
.ind-case {
  border-radius: var(--radius-md); overflow: hidden;
  background: var(--navy-900); border: 1px solid var(--border-dark);
  transition: border-color var(--duration-base);
}
.ind-case[open] { border-color: rgba(227,167,18,0.45); }
.ind-case-head {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-5);
  padding: var(--space-6); cursor: pointer; list-style: none;
}
.ind-case-head::-webkit-details-marker { display: none; }
.ind-case-industry {
  display: inline-block; font-size: 10.5px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--gold);
  margin-bottom: var(--space-2);
}
.ind-case-head h3 { font-size: 19px; color: var(--white); line-height: 1.35; }
.ind-case-toggle {
  flex: none; width: 34px; height: 34px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-dark); color: var(--gold);
  transition: transform var(--duration-base) var(--ease-out-quart), background var(--duration-base);
}
.ind-case[open] .ind-case-toggle { transform: rotate(180deg); background: rgba(227,167,18,0.1); }
.ind-case-body {
  padding: 0 var(--space-6) var(--space-6);
  border-top: 1px solid var(--border-dark);
  animation: indFade 0.35s var(--ease-out-quart);
}
@keyframes indFade { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.ind-case-step { padding-top: var(--space-5); }
.ind-case-step h4 {
  font-size: 11.5px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--gold-dark); margin-bottom: var(--space-2);
}
.ind-case-step p { font-size: 15px; color: rgba(255,255,255,0.75); line-height: 1.75; }
.ind-case-chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.ind-chip {
  display: inline-flex; padding: 6px 13px; border-radius: 999px;
  background: rgba(227,167,18,0.1); border: 1px solid rgba(227,167,18,0.3);
  color: var(--gold); font-size: 13px; text-decoration: none;
  transition: background var(--duration-base);
}
.ind-chip:hover { background: rgba(227,167,18,0.2); }
.ind-chip-guide {
  background: rgba(255,255,255,0.05); border-color: var(--border-dark);
  color: rgba(255,255,255,0.8);
}
.ind-chip-guide:hover { background: rgba(255,255,255,0.1); }

/* ============================================================
   6. PRODUCTS CAROUSEL
   ============================================================ */
.ind-carousel-nav { display: flex; gap: var(--space-2); flex: none; }
.ind-carousel-btn {
  width: 42px; height: 42px; border-radius: 50%; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--border-dark); color: var(--white);
  transition: border-color var(--duration-base), background var(--duration-base), color var(--duration-base);
}
.ind-carousel-btn:hover { border-color: var(--gold); color: var(--gold); background: rgba(227,167,18,0.08); }
.ind-carousel-btn:disabled { opacity: 0.3; cursor: default; }
.ind-carousel-btn:disabled:hover { border-color: var(--border-dark); color: var(--white); background: transparent; }

.ind-carousel {
  display: flex; gap: var(--space-5);
  overflow-x: auto; scroll-snap-type: x mandatory;
  scroll-behavior: smooth; scrollbar-width: none;
  padding-bottom: var(--space-2);
}
.ind-carousel::-webkit-scrollbar { display: none; }
.ind-product {
  flex: 0 0 clamp(230px, 24vw, 280px); scroll-snap-align: start;
  display: flex; flex-direction: column;
  border-radius: var(--radius-md); overflow: hidden;
  background: var(--navy-700); border: 1px solid var(--border-dark);
  text-decoration: none;
  transition: border-color var(--duration-base), transform var(--duration-base) var(--ease-out-quart);
}
.ind-product:hover { border-color: var(--gold); transform: translateY(-4px); }
.ind-product-img { display: block; aspect-ratio: 4/3; background: var(--navy-900); overflow: hidden; }
.ind-product-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s var(--ease-out-quart);
}
.ind-product:hover .ind-product-img img { transform: scale(1.06); }
.ind-product-noimg {
  display: flex; align-items: center; justify-content: center; height: 100%;
  color: rgba(255,255,255,0.35); font-family: var(--font-heading);
  font-size: 13px; letter-spacing: 0.05em;
}
.ind-product-body { display: flex; flex-direction: column; gap: 6px; padding: var(--space-5); }
.ind-product-cat {
  font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--gold-dark); font-weight: 700;
}
.ind-product-body strong { font-size: 15.5px; color: var(--white); line-height: 1.35; }
.ind-product-tag { font-size: 13px; color: rgba(255,255,255,0.55); line-height: 1.55; }

/* ============================================================
   7. ENGINEERING RESOURCES
   ============================================================ */
.ind-tool-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: var(--space-4);
}
.ind-tool {
  display: flex; align-items: flex-start; gap: var(--space-4);
  padding: var(--space-5); border-radius: var(--radius-md);
  background: var(--navy-900); border: 1px solid var(--border-dark);
  text-decoration: none;
  transition: border-color var(--duration-base), transform var(--duration-base) var(--ease-out-quart);
}
.ind-tool:hover { border-color: var(--gold); transform: translateY(-3px); }
.ind-tool-icon {
  flex: none; width: 42px; height: 42px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(227,167,18,0.1); color: var(--gold);
}
.ind-tool-icon svg { width: 20px; height: 20px; }
.ind-tool strong { display: block; color: var(--white); font-size: 15px; margin-bottom: 4px; }
.ind-tool span span { color: rgba(255,255,255,0.55); font-size: 13px; line-height: 1.55; }

.ind-guide-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
}
.ind-guide {
  position: relative; display: flex; flex-direction: column; gap: 6px;
  padding: var(--space-5) var(--space-6) var(--space-5) var(--space-5);
  border-radius: var(--radius-md);
  background: var(--navy-900); border: 1px solid var(--border-dark);
  text-decoration: none;
  transition: border-color var(--duration-base), transform var(--duration-base) var(--ease-out-quart);
}
.ind-guide:hover { border-color: var(--gold); transform: translateY(-3px); }
.ind-guide > span:first-child {
  font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--gold-dark); font-weight: 700;
}
.ind-guide strong { color: var(--white); font-size: 15px; line-height: 1.45; }
.ind-guide-arrow {
  position: absolute; right: var(--space-5); bottom: var(--space-5);
  color: var(--gold); opacity: 0; transform: translateX(-6px);
  transition: opacity var(--duration-base), transform var(--duration-base) var(--ease-out-quart);
}
.ind-guide:hover .ind-guide-arrow { opacity: 1; transform: translateX(0); }

/* ============================================================
   8. FAQ
   ============================================================ */
.ind-faq-wrap { max-width: 860px; }
.ind-faq-list { display: flex; flex-direction: column; gap: var(--space-3); }
.ind-faq {
  border-radius: var(--radius-sm); overflow: hidden;
  background: var(--navy-700); border: 1px solid var(--border-dark);
  transition: border-color var(--duration-base);
}
.ind-faq[open] { border-color: rgba(227,167,18,0.4); }
.ind-faq summary {
  padding: var(--space-5) var(--space-6); cursor: pointer; list-style: none;
  font-size: 15.5px; font-weight: 600; color: var(--white);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
}
.ind-faq summary::-webkit-details-marker { display: none; }
.ind-faq summary::after {
  content: "+"; flex: none; color: var(--gold); font-size: 20px; font-weight: 400;
  transition: transform var(--duration-base) var(--ease-out-quart);
}
.ind-faq[open] summary::after { transform: rotate(45deg); }
.ind-faq-a {
  padding: 0 var(--space-6) var(--space-5);
  animation: indFade 0.3s var(--ease-out-quart);
}
.ind-faq-a p { font-size: 15px; color: rgba(255,255,255,0.72); line-height: 1.75; }
.ind-faq-a strong { color: var(--white); }
.ind-faq-a a { color: var(--gold); }

/* ============================================================
   9. WHY US
   ============================================================ */
.ind-why-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-5);
}
.ind-why {
  padding: var(--space-6); border-radius: var(--radius-md);
  background: var(--navy-900); border: 1px solid var(--border-dark);
  transition: border-color var(--duration-base), transform var(--duration-base) var(--ease-out-quart);
}
.ind-why:hover { border-color: rgba(227,167,18,0.5); transform: translateY(-3px); }
.ind-why-icon {
  width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(227,167,18,0.1); color: var(--gold);
  margin-bottom: var(--space-4);
}
.ind-why-icon svg { width: 21px; height: 21px; }
.ind-why h3 { font-size: 16.5px; color: var(--white); margin-bottom: var(--space-2); line-height: 1.4; }
.ind-why p { font-size: 14px; color: rgba(255,255,255,0.62); line-height: 1.7; }

/* ============================================================
   10. FINAL CTA
   ============================================================ */
.ind-cta {
  padding-block: var(--space-9);
  background:
    radial-gradient(circle at 50% 0%, rgba(227,167,18,0.09), transparent 60%),
    var(--navy-900);
  border-top: 1px solid var(--border-dark);
  text-align: center;
}
.ind-cta h2 {
  font-family: var(--font-heading); font-size: clamp(28px, 2.4vw, 38px);
  color: var(--white); margin-bottom: var(--space-4);
  max-width: 22ch; margin-inline: auto;
}
.ind-cta > .container > p {
  color: rgba(255,255,255,0.7); font-size: 16.5px; line-height: 1.7;
  max-width: 60ch; margin-inline: auto; margin-bottom: var(--space-8);
}
.ind-cta-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: var(--space-4); text-align: left; margin-bottom: var(--space-7);
}
.ind-cta-card {
  display: flex; flex-direction: column; gap: 8px;
  padding: var(--space-6); border-radius: var(--radius-md);
  background: var(--navy-700); border: 1px solid var(--border-dark);
  text-decoration: none;
  transition: border-color var(--duration-base), transform var(--duration-base) var(--ease-out-quart);
}
.ind-cta-card:hover { border-color: var(--gold); transform: translateY(-4px); }
.ind-cta-primary { border-color: rgba(227,167,18,0.45); background: rgba(227,167,18,0.06); }
.ind-cta-icon {
  width: 42px; height: 42px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(227,167,18,0.12); color: var(--gold);
  margin-bottom: var(--space-2);
}
.ind-cta-icon svg { width: 20px; height: 20px; }
.ind-cta-card strong { color: var(--white); font-size: 15.5px; line-height: 1.35; }
.ind-cta-card > span:last-child { color: rgba(255,255,255,0.55); font-size: 13.5px; line-height: 1.6; }
.ind-cta-actions { display: flex; flex-wrap: wrap; gap: var(--space-4); justify-content: center; }

/* ============================================================
   Responsive + reduced motion
   ============================================================ */
@media (max-width: 700px) {
  .ind-section { padding-block: var(--space-8); }
  .ind-section-head-row { flex-direction: column; align-items: flex-start; }
  .ind-hero-cta .btn, .ind-cta-actions .btn { flex: 1 1 auto; text-align: center; }
  .ind-case-head { padding: var(--space-5); }
  .ind-case-body { padding: 0 var(--space-5) var(--space-5); }
}

@media (prefers-reduced-motion: reduce) {
  .ind-challenge, .ind-solution, .ind-product, .ind-tool, .ind-guide,
  .ind-why, .ind-cta-card, .ind-case-toggle, .ind-product-img img,
  .ind-challenge-icon, .ind-guide-arrow {
    transition-duration: 0.01ms !important;
    animation: none !important;
  }
  .ind-carousel { scroll-behavior: auto; }
  .ind-challenge:hover, .ind-solution:hover, .ind-product:hover,
  .ind-tool:hover, .ind-guide:hover, .ind-why:hover, .ind-cta-card:hover {
    transform: none;
  }
}

/* ============================================================
   Industries hub (page-industries.php)
   ============================================================ */
.ind-hub-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
}
.ind-hub-card {
  position: relative; display: block; min-height: 280px;
  border-radius: var(--radius-md); overflow: hidden;
  border: 1px solid var(--border-dark); text-decoration: none;
  background: var(--hub-bg) center / cover no-repeat, var(--navy-700);
  transition: border-color var(--duration-base), transform var(--duration-base) var(--ease-out-quart),
              box-shadow var(--duration-base);
}
.ind-hub-card:hover {
  border-color: var(--gold); transform: translateY(-5px);
  box-shadow: 0 20px 46px rgba(0,0,0,0.42);
}
.ind-hub-scrim {
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(11,21,34,0.97) 15%, rgba(11,21,34,0.72) 55%, rgba(11,21,34,0.45) 100%);
  transition: background var(--duration-base);
}
.ind-hub-card:hover .ind-hub-scrim {
  background: linear-gradient(0deg, rgba(11,21,34,0.97) 15%, rgba(11,21,34,0.62) 60%, rgba(11,21,34,0.3) 100%);
}
.ind-hub-body {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; gap: 8px;
  height: 100%; padding: var(--space-6);
  justify-content: flex-end;
}
.ind-hub-icon {
  width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(227,167,18,0.14); color: var(--gold);
  margin-bottom: var(--space-3);
  transition: transform var(--duration-base) var(--ease-out-quart);
}
.ind-hub-card:hover .ind-hub-icon { transform: scale(1.08); }
.ind-hub-icon svg { width: 21px; height: 21px; }
.ind-hub-body strong {
  font-family: var(--font-heading); font-size: 22px;
  color: var(--white); letter-spacing: 0.01em; line-height: 1.15;
}
.ind-hub-line { font-size: 13.5px; color: rgba(255,255,255,0.62); line-height: 1.55; }
.ind-hub-arrow {
  margin-top: var(--space-3); font-size: 13px; font-weight: 600;
  color: var(--gold); opacity: 0; transform: translateY(6px);
  transition: opacity var(--duration-base), transform var(--duration-base) var(--ease-out-quart);
}
.ind-hub-card:hover .ind-hub-arrow { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .ind-hub-card, .ind-hub-icon, .ind-hub-arrow, .ind-hub-scrim { transition-duration: 0.01ms !important; }
  .ind-hub-card:hover { transform: none; }
  .ind-hub-arrow { opacity: 1; transform: none; }
}

/* Industries hub hero (page-industries.php) */
.ind-hub-hero {
  padding-top: calc(var(--header-h, 116px) + var(--space-8));
  padding-bottom: var(--space-8);
  background:
    radial-gradient(circle at 15% 0%, rgba(227,167,18,0.10), transparent 55%),
    var(--navy-900);
}
.ind-hub-hero .ind-hero-title { max-width: 18ch; }
.ind-hub-hero .ind-hero-intro { max-width: 64ch; }