/* ═══════════════════════════════════════════════════
   DOSERTECH FIRE SYSTEMS — STYLESHEET
   Industrial premium fire protection — dosertechfiresystems.com.au
═══════════════════════════════════════════════════ */

/* ── Reset & Base ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --c-bg:          #0d0f12;
  --c-surface:     #141720;
  --c-surface-2:   #1c2030;
  --c-surface-3:   #232838;
  --c-mid:         #1a1e2b;
  --c-light:       #f5f6f8;
  --c-light-2:     #e8eaed;
  --c-fire:        #e8520a;
  --c-fire-dark:   #c44208;
  --c-fire-glow:   rgba(232, 82, 10, 0.18);
  --c-steel:       #8090a8;
  --c-steel-light: #aab8cc;
  --c-white:       #ffffff;
  --c-border:      rgba(255,255,255,0.07);
  --c-border-mid:  rgba(255,255,255,0.12);

  --f-main:      'Barlow', sans-serif;
  --f-condensed: 'Barlow Condensed', sans-serif;

  --radius:    6px;
  --radius-lg: 12px;
  --shadow:    0 2px 20px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.6);

  --nav-h: 72px;
  --max-w: 1200px;
  --gutter: 24px;

  scroll-behavior: smooth;
}

html { font-size: 18px; }

body {
  font-family: var(--f-main);
  background: var(--c-bg);
  color: var(--c-light);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Utility ──────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.accent { color: var(--c-fire); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-family: var(--f-main);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--c-fire);
  color: var(--c-white);
  border-color: var(--c-fire);
}
.btn-primary:hover {
  background: var(--c-fire-dark);
  border-color: var(--c-fire-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(232,82,10,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--c-white);
  border-color: rgba(255,255,255,0.4);
}
.btn-outline:hover {
  border-color: var(--c-white);
  background: rgba(255,255,255,0.06);
}

.btn-outline-light {
  background: transparent;
  color: var(--c-white);
  border-color: rgba(255,255,255,0.5);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--c-white);
}

.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-block { width: 100%; justify-content: center; }
.btn-nav {
  background: var(--c-fire);
  color: var(--c-white) !important;
  padding: 9px 22px;
  border-radius: var(--radius);
  font-weight: 700;
}
.btn-nav:hover { background: var(--c-fire-dark); }

/* ── Section Base ────────────────────────────── */
section { padding: 100px 0; }

.section-dark  { background: var(--c-bg); }
.section-light { background: var(--c-light-2); color: #1a1e2b; }
.section-mid   { background: var(--c-surface); }

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-fire);
  margin-bottom: 12px;
  display: block;
}
.section-light .section-eyebrow { color: var(--c-fire-dark); }
.section-mid   .section-eyebrow { color: var(--c-fire); }

h1, h2, h3, h4, h5 {
  font-family: var(--f-condensed);
  line-height: 1.15;
  font-weight: 700;
}

h1 { font-size: clamp(2.6rem, 6vw, 4.2rem); font-weight: 800; }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.2rem; }

.section-lead {
  font-size: 1.1rem;
  color: var(--c-steel-light);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.7;
}
.section-light .section-lead { color: #4a5568; }
.section-mid   .section-lead { color: var(--c-steel-light); }

/* ── Navigation ─────────────────────────────── */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(13, 15, 18, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow 0.3s;
}
#site-header.scrolled { box-shadow: 0 4px 32px rgba(0,0,0,0.5); }

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  gap: 1px;
  flex-shrink: 0;
}
.logo-img-link {
  display: flex;
  align-items: center;
}
.logo-img {
  height: 48px;
  width: auto;
  display: block;
  /* Logo has grey/silver text — invert lightly so it reads on dark nav */
  filter: brightness(1.15) drop-shadow(0 1px 4px rgba(0,0,0,0.4));
  transition: filter 0.2s;
}
.logo-img-link:hover .logo-img {
  filter: brightness(1.3) drop-shadow(0 2px 8px rgba(232,82,10,0.3));
}
.logo-img--footer {
  height: 52px;
  margin-bottom: 14px;
}
/* Hero logo — large prominent display above headline */
.hero-logo-wrap {
  margin-bottom: 40px;
  display: flex;
  justify-content: center;
  /* Matches the hero grid texture exactly — no visible box */
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  background-color: transparent;
  padding: 24px 32px;
}
.hero-logo {
  height: 180px;
  width: auto;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 4px 20px rgba(0,0,0,0.5));
  max-width: 760px;
}
/* Keep old text-logo styles for any fallback references */
.logo-primary {
  font-family: var(--f-condensed);
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--c-white);
}
.logo-sub {
  font-family: var(--f-condensed);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-fire);
}

#site-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
#site-nav ul li a {
  padding: 8px 12px;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--c-steel-light);
  border-radius: var(--radius);
  transition: color 0.2s, background 0.2s;
}
#site-nav ul li a:hover { color: var(--c-white); background: rgba(255,255,255,0.06); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: 0.3s;
}

/* ── Hero ───────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: calc(var(--nav-h) + 80px) 0 80px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(13,15,18,0.97) 0%, rgba(20,23,32,0.85) 60%, rgba(40,15,5,0.7) 100%),
    radial-gradient(ellipse at 70% 50%, rgba(232,82,10,0.12) 0%, transparent 60%);
}

/* Steel-grid texture */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--c-bg), transparent);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-eyebrow {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-fire);
  margin-bottom: 20px;
  display: block;
  text-align: center;
}
.hero-eyebrow::before { display: none; }

#hero h1 {
  color: var(--c-white);
  margin-bottom: 24px;
  text-shadow: 0 2px 40px rgba(0,0,0,0.4);
  font-size: clamp(1.9rem, 3.6vw, 3.1rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.hero-lead {
  font-size: 1.2rem;
  color: var(--c-steel-light);
  max-width: 620px;
  margin: 0 auto 40px;
  line-height: 1.7;
  text-align: center;
}
.hero-lead strong { color: var(--c-white); }

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }

.hero-badge {
  position: absolute;
  right: 80px;
  top: 50%;
  transform: translateY(-50%);
  width: 110px; height: 110px;
  border: 2px solid var(--c-fire);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--c-white);
  text-align: center;
  opacity: 0.85;
  pointer-events: none;
}
.hero-badge span:first-child {
  font-family: var(--f-condensed);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--c-fire);
  line-height: 1;
}
.badge-sub {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-steel-light);
  margin-top: 4px;
  line-height: 1.3;
}

.scroll-indicator {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  color: var(--c-steel);
  opacity: 0.6;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ── Trust Bar ─────────────────────────────── */
.trust-bar {
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  padding: 20px 0;
}
.trust-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--c-steel-light);
  letter-spacing: 0.03em;
  flex: 1;
  min-width: 160px;
  justify-content: center;
}
.trust-item svg { color: var(--c-fire); flex-shrink: 0; width: 18px; height: 18px; }

/* ── Solutions Grid ────────────────────────── */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.solution-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.solution-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--c-fire-glow), transparent);
  opacity: 0;
  transition: opacity 0.25s;
}
.solution-card:hover { border-color: var(--c-fire); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(232,82,10,0.15); }
.solution-card:hover::before { opacity: 1; }

.solution-card.featured {
  border-color: var(--c-fire);
  background: linear-gradient(135deg, var(--c-surface) 0%, rgba(232,82,10,0.06) 100%);
}

.featured-label {
  position: absolute;
  top: 16px; right: 16px;
  background: var(--c-fire);
  color: var(--c-white);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
}

.solution-icon {
  color: var(--c-fire);
  margin-bottom: 20px;
}
.solution-card h3 {
  font-family: var(--f-condensed);
  font-size: 1.7rem;
  margin-bottom: 4px;
  color: var(--c-white);
}
.solution-tag {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-fire);
  margin-bottom: 14px;
  display: block;
}
.solution-card p {
  font-size: 0.92rem;
  color: var(--c-steel-light);
  line-height: 1.65;
  margin-bottom: 20px;
  position: relative;
}
.card-link {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-fire);
  letter-spacing: 0.03em;
  transition: gap 0.2s;
  position: relative;
}
.card-link:hover { color: #ff7034; }

/* ── Split Layout ─────────────────────────── */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}
.split-layout.reverse { direction: rtl; }
.split-layout.reverse > * { direction: ltr; }

.split-text { padding-top: 8px; }
.split-text h2 { margin-bottom: 20px; }
.section-light .split-text h2 { color: #1a1e2b; }

.split-lead {
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 32px;
}
.section-dark  .split-lead { color: var(--c-steel-light); }
.section-light .split-lead { color: #3a4560; }

.split-text p {
  font-size: 0.97rem;
  line-height: 1.7;
  margin-bottom: 20px;
}
.section-dark  .split-text p { color: var(--c-steel-light); }
.section-light .split-text p { color: #4a5568; }

/* ── Mechanic Steps (F-500) ─────────────── */
.mechanic-steps { margin-top: 32px; }
.step {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(26,30,43,0.15);
}
.section-dark .step { border-bottom-color: var(--c-border); }
.step:last-child { border-bottom: none; }

.step-num {
  font-family: var(--f-condensed);
  font-size: 2rem;
  font-weight: 800;
  color: var(--c-fire);
  line-height: 1;
  flex-shrink: 0;
  width: 44px;
}
.step-text strong {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--c-white);
}
.section-light .step-text strong { color: #1a1e2b; }
.step-text p {
  font-size: 0.9rem;
  line-height: 1.65;
  margin: 0 !important;
}

/* ── Fire Classes (F-500 visual) ─────────── */
.split-visual { }
.visual-box {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 16px;
}
.section-light .visual-box {
  background: var(--c-white);
  border-color: rgba(0,0,0,0.1);
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}

.fire-classes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}
.fire-class.span-2 {
  grid-column: span 4;
}
.fire-class {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}
.fire-class span {
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--c-steel-light);
}
.section-light .fire-class span { color: #4a5568; }

.class-badge {
  width: 52px; height: 52px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-condensed);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--c-white);
}
.fire-class.span-2 .class-badge { width: 72px; height: 52px; font-size: 1.6rem; border-radius: 8px; }

.class-a { background: #2d7d46; }
.class-b { background: #c41f1f; }
.class-c { background: #1a5fa8; }
.class-d { background: #7a5c1a; }
.class-li { background: linear-gradient(135deg, var(--c-fire), var(--c-fire-dark)); }

.visual-caption {
  font-size: 0.78rem;
  color: var(--c-steel);
  text-align: center;
  font-style: italic;
}
.section-light .visual-caption { color: #888; }

.spec-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.spec-item {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.section-light .spec-item {
  background: var(--c-white);
  border-color: rgba(0,0,0,0.1);
}
.spec-item strong {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--c-fire);
  margin-bottom: 3px;
}
.spec-item span {
  font-size: 0.78rem;
  color: var(--c-steel-light);
}
.section-light .spec-item span { color: #6b7891; }

/* ── F-500 Performance Proof Bar ──────── */
.f500-proof-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 0;
  margin-top: 56px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.proof-stat {
  padding: 36px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  transition: background 0.2s;
}
.proof-stat:hover { background: var(--c-surface-2); }

.proof-number {
  font-family: var(--f-condensed);
  font-size: 4rem;
  font-weight: 800;
  color: var(--c-fire);
  line-height: 1;
}
.proof-unit {
  font-size: 2.4rem;
  font-weight: 700;
}
.proof-label {
  font-size: 0.88rem;
  color: var(--c-steel-light);
  line-height: 1.5;
  max-width: 220px;
}
.proof-label em { font-style: normal; color: var(--c-white); font-weight: 700; }

.proof-divider {
  width: 1px;
  height: 80px;
  background: var(--c-border-mid);
  flex-shrink: 0;
}

.proof-stat--cert {
  gap: 14px;
}
.proof-cert-badge {
  font-family: var(--f-condensed);
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--c-white);
  background: var(--c-fire);
  padding: 6px 20px;
  border-radius: var(--radius);
  letter-spacing: 0.06em;
  line-height: 1.2;
}

@media (max-width: 860px) {
  .f500-proof-bar {
    grid-template-columns: 1fr;
  }
  .proof-divider {
    width: 80%;
    height: 1px;
    margin: 0 auto;
  }
}

/* ── Diamond Doser Section ─────────────── */
.doser-models {
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}
.model-header {
  font-family: var(--f-condensed);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--c-fire);
  text-transform: uppercase;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-border);
}
.model-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin-bottom: 20px;
}
.model-table th {
  text-align: left;
  color: var(--c-steel);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 10px;
  border-bottom: 1px solid var(--c-border);
}
.model-table td {
  padding: 10px 10px;
  color: var(--c-light);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.model-table tr:last-child td { border-bottom: none; }
.model-table tr:hover td { background: rgba(255,255,255,0.03); }

.certifications-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.cert-badge {
  background: var(--c-fire-glow);
  border: 1px solid rgba(232,82,10,0.3);
  color: var(--c-fire);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 20px;
}

.feature-list { margin-top: 16px; }
.feature-row {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-border);
  align-items: flex-start;
}
.feature-row:last-child { border-bottom: none; }
.feature-icon {
  color: var(--c-fire);
  flex-shrink: 0;
  margin-top: 2px;
}
.feature-row strong {
  display: block;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--c-white);
}
.feature-row p {
  font-size: 0.88rem;
  color: var(--c-steel-light);
  margin: 0 !important;
  line-height: 1.5;
}

/* ── Micelle Mist Section ─────────────── */
.mist-mechanism-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}
.mechanism-card {
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  position: relative;
}
.mechanism-card:hover { border-color: rgba(232,82,10,0.3); }

.mechanism-number {
  font-family: var(--f-condensed);
  font-size: 3rem;
  font-weight: 800;
  color: rgba(232,82,10,0.15);
  line-height: 1;
  margin-bottom: 16px;
}
.mechanism-card h4 {
  font-size: 1.1rem;
  color: var(--c-white);
  margin-bottom: 12px;
}
.mechanism-card p {
  font-size: 0.9rem;
  color: var(--c-steel-light);
  line-height: 1.65;
}
.mechanism-card strong { color: var(--c-fire); }

.mist-specs-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.mist-models h4,
.mist-applications h4 {
  font-family: var(--f-condensed);
  font-size: 1.2rem;
  color: var(--c-white);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-border);
}

.model-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.model-card {
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 16px;
}
.model-type {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-fire);
  margin-bottom: 4px;
}
.model-pressure {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 6px;
}
.model-droplet {
  font-size: 0.78rem;
  color: var(--c-steel-light);
}

.app-list { display: flex; flex-direction: column; gap: 12px; }
.app-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--c-steel-light);
  line-height: 1.45;
}
.app-list li svg { color: var(--c-fire); flex-shrink: 0; margin-top: 2px; }

/* ── Callout (Lithium) ─────────────────── */
.section-callout {
  background:
    linear-gradient(135deg, #0a0c0f 0%, #150a05 100%),
    radial-gradient(ellipse at 80% 50%, rgba(232,82,10,0.08) 0%, transparent 60%);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}
.section-callout::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.callout-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  align-items: center;
  position: relative;
}
.callout-text .section-eyebrow { color: var(--c-fire); }
.callout-text h2 { color: var(--c-white); margin-bottom: 24px; }
.callout-text p {
  font-size: 0.97rem;
  color: var(--c-steel-light);
  line-height: 1.75;
  margin-bottom: 20px;
  max-width: 620px;
}
.callout-text p strong { color: var(--c-white); }
.callout-text .btn { margin-top: 12px; }

.callout-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  min-width: 300px;
}
.stat-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
}
.stat-number {
  font-family: var(--f-condensed);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--c-fire);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--c-steel-light);
  line-height: 1.4;
}

/* ── Industries ───────────────────────── */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.industry-tile {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: all 0.25s;
  cursor: default;
}
.industry-tile:hover { border-color: var(--c-fire); background: var(--c-surface-2); transform: translateY(-3px); }
.industry-tile svg { color: var(--c-fire); margin: 0 auto 14px; }
.industry-tile h4 { font-size: 0.9rem; font-weight: 700; letter-spacing: 0.02em; color: var(--c-light); }

/* ── About Section ───────────────────── */
.about-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.pillar {
  border-top: 2px solid var(--c-fire);
  padding-top: 16px;
}
.section-light .pillar { border-top-color: var(--c-fire-dark); }
.pillar strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--c-fire-dark);
}
.section-dark .pillar strong { color: var(--c-fire); }
.pillar p {
  font-size: 0.84rem !important;
  line-height: 1.6;
  margin: 0 !important;
}

.hct-block {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid rgba(0,0,0,0.1);
  box-shadow: 0 4px 32px rgba(0,0,0,0.1);
  margin-bottom: 16px;
  color: #1a1e2b;
}
.hct-logo-text {
  font-family: var(--f-condensed);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--c-fire-dark);
  line-height: 1;
}
.hct-full {
  font-size: 0.85rem;
  font-weight: 700;
  color: #3a4560;
  margin-top: 4px;
  margin-bottom: 2px;
}
.hct-location {
  font-size: 0.78rem;
  color: #888;
}
.hct-divider {
  height: 1px;
  background: rgba(0,0,0,0.1);
  margin: 20px 0;
}
.hct-description {
  font-size: 0.88rem;
  color: #4a5568;
  line-height: 1.65;
  margin-bottom: 20px !important;
}
.hct-certs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.hct-cert {
  background: rgba(196,66,8,0.08);
  border: 1px solid rgba(196,66,8,0.2);
  color: var(--c-fire-dark);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 5px 12px;
  border-radius: 20px;
}

.distributor-badge {
  background: var(--c-fire);
  border-radius: var(--radius-lg);
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--c-white);
}
.distributor-badge svg { flex-shrink: 0; }
.distributor-badge strong { display: block; font-size: 0.9rem; font-weight: 700; }
.distributor-badge span { font-size: 0.8rem; opacity: 0.85; }

/* ── CTA Band ────────────────────────── */
.cta-band {
  background: var(--c-fire);
  padding: 64px 0;
}
.cta-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-band h2 {
  font-size: 2rem;
  color: var(--c-white);
  margin-bottom: 8px;
}
.cta-band p {
  font-size: 1rem;
  color: rgba(255,255,255,0.85);
  max-width: 520px;
}
.cta-band-actions { display: flex; gap: 16px; flex-wrap: wrap; flex-shrink: 0; }
.cta-band .btn-primary { background: var(--c-white); color: var(--c-fire); border-color: var(--c-white); }
.cta-band .btn-primary:hover { background: var(--c-light-2); }
.cta-band .btn-outline-light { border-color: rgba(255,255,255,0.6); }

/* ── Contact ─────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 56px;
  align-items: start;
}

.contact-form-wrap {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}
.form-group label {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-steel-light);
  text-transform: uppercase;
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--c-surface-2);
  border: 1px solid var(--c-border-mid);
  border-radius: var(--radius);
  color: var(--c-white);
  font-family: var(--f-main);
  font-size: 0.95rem;
  padding: 12px 16px;
  transition: border 0.2s;
  outline: none;
  width: 100%;
  resize: vertical;
  appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--c-steel); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--c-fire); }
.form-group select { cursor: pointer; }
.form-group select option { background: var(--c-surface-2); }

.form-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 60px 40px;
  text-align: center;
}
.form-success svg { color: var(--c-fire); }
.form-success h3 { font-size: 1.4rem; color: var(--c-white); }
.form-success p { color: var(--c-steel-light); }

.contact-info-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 16px;
}
.contact-info-card h4 {
  font-size: 1.2rem;
  color: var(--c-white);
  margin-bottom: 6px;
}
.contact-info-card > p {
  font-size: 0.88rem;
  color: var(--c-steel-light);
  margin-bottom: 24px;
  line-height: 1.5;
}
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.88rem;
  color: var(--c-steel-light);
}
.contact-detail svg { color: var(--c-fire); flex-shrink: 0; margin-top: 1px; }
.contact-detail a { color: var(--c-steel-light); transition: color 0.2s; }
.contact-detail a:hover { color: var(--c-fire); }

.hct-contact-card {
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
}
.hct-contact-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-fire);
  margin-bottom: 8px;
}
.hct-contact-card p { font-size: 0.85rem; color: var(--c-steel-light); line-height: 1.5; margin-bottom: 10px; }
.hct-contact-card a { font-size: 0.85rem; color: var(--c-fire); }
.hct-contact-card a:hover { color: #ff7034; }

/* ── Footer ──────────────────────────── */
#site-footer {
  background: #080a0d;
  border-top: 1px solid var(--c-border);
  padding-top: 72px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p {
  font-size: 0.85rem;
  color: var(--c-steel);
  line-height: 1.65;
  max-width: 300px;
}
.footer-nav-col h5 {
  font-family: var(--f-condensed);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-fire);
  margin-bottom: 16px;
}
.footer-nav-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-nav-col ul li { font-size: 0.85rem; }
.footer-nav-col ul li a {
  color: var(--c-steel);
  transition: color 0.2s;
}
.footer-nav-col ul li a:hover { color: var(--c-white); }

.footer-bottom {
  border-top: 1px solid var(--c-border);
  padding: 24px 0;
}
.footer-bottom .container {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-bottom p {
  font-size: 0.78rem;
  color: var(--c-steel);
  line-height: 1.5;
}
.footer-disclaimer { opacity: 0.65; }

/* ── Responsive ────────────────────────────────── */
@media (max-width: 1100px) {
  .hero-badge { display: none; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .callout-inner { grid-template-columns: 1fr; gap: 48px; }
  .callout-stats { grid-template-columns: repeat(4, 1fr); min-width: unset; }
}

@media (max-width: 900px) {
  .split-layout { grid-template-columns: 1fr; gap: 48px; }
  .split-layout.reverse { direction: ltr; }
  .solutions-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .mist-mechanism-row { grid-template-columns: 1fr; }
  .mist-specs-block { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .about-pillars { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  section { padding: 72px 0; }
  h1 { font-size: 2.4rem; }
  h2 { font-size: 2rem; }
  .logo-img { height: 38px; }
  .hero-logo { height: 110px; }

  .nav-toggle { display: flex; }
  #site-nav {
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    background: rgba(13,15,18,0.98);
    backdrop-filter: blur(16px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s;
  }
  #site-nav.open { opacity: 1; pointer-events: all; }
  #site-nav ul { flex-direction: column; align-items: center; gap: 8px; }
  #site-nav ul li a { font-size: 1.2rem; padding: 14px 28px; }

  .trust-inner { justify-content: center; }
  .trust-item { min-width: 130px; flex: none; }

  .callout-stats { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .cta-band-inner { flex-direction: column; align-items: flex-start; }
  .fire-classes-grid { grid-template-columns: repeat(2, 1fr); }
  .fire-class.span-2 { grid-column: span 2; }

  .contact-form-wrap { padding: 24px; }
}

@media (max-width: 480px) {
  .industries-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .model-cards-grid { grid-template-columns: 1fr; }
  .spec-strip { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; justify-content: center; }
}