/* ============================================================
   FIRE RESISTANCE & SAFETY — Landing Page Styles
   Premium Deep-Tech Safety Engineering Design
   ============================================================ */

/* ============================================================
   HERO SECTION
   ============================================================ */
.fr-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  overflow: hidden;
  background: var(--bg-primary);
}

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

.fr-hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.012) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.012) 1px, transparent 1px);
  background-size: 64px 64px;
}

/* Thermal gradient visualization */
.fr-hero__thermal-field {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.fr-hero__heat-zone {
  position: absolute;
  left: -5%;
  top: 0;
  bottom: 0;
  width: 40%;
  background: radial-gradient(ellipse at 20% 50%, rgba(232, 81, 45, 0.11) 0%, rgba(245, 158, 11, 0.04) 50%, transparent 75%);
  animation: fr-heat-breathe 8s ease-in-out infinite alternate;
}

.fr-hero__barrier-zone {
  position: absolute;
  left: 35%;
  top: 0;
  bottom: 0;
  width: 6%;
  background: linear-gradient(180deg, transparent 0%, rgba(201, 209, 220, 0.04) 20%, rgba(201, 209, 220, 0.07) 50%, rgba(201, 209, 220, 0.04) 80%, transparent 100%);
  animation: fr-barrier-shimmer 5s ease-in-out infinite;
}

.fr-hero__cool-zone {
  position: absolute;
  right: -5%;
  top: 0;
  bottom: 0;
  width: 40%;
  background: radial-gradient(ellipse at 80% 50%, rgba(59, 130, 246, 0.07) 0%, transparent 70%);
  animation: fr-cool-breathe 8s ease-in-out infinite alternate-reverse;
}

@keyframes fr-heat-breathe {
  0% { opacity: 0.6; transform: scaleX(1); }
  100% { opacity: 1; transform: scaleX(1.05); }
}
@keyframes fr-cool-breathe {
  0% { opacity: 0.5; transform: scaleX(1); }
  100% { opacity: 0.9; transform: scaleX(1.06); }
}
@keyframes fr-barrier-shimmer {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.fr-hero__particle-field {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.fr-hero__particle {
  position: absolute;
  border-radius: 50%;
  animation: fr-particle-float 24s ease-in-out infinite;
}
.fr-hero__particle:nth-child(1) { width: 500px; height: 500px; top: 0; right: -10%; background: radial-gradient(circle, rgba(232, 81, 45, 0.07) 0%, transparent 70%); animation-delay: 0s; }
.fr-hero__particle:nth-child(2) { width: 360px; height: 360px; bottom: -5%; left: -5%; background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 70%); animation-delay: -6s; }
.fr-hero__particle:nth-child(3) { width: 240px; height: 240px; top: 30%; right: 15%; background: radial-gradient(circle, rgba(245, 158, 11, 0.05) 0%, transparent 70%); animation-delay: -12s; }
.fr-hero__particle:nth-child(4) { width: 600px; height: 600px; top: -15%; left: 25%; background: radial-gradient(circle, rgba(232, 81, 45, 0.04) 0%, transparent 70%); animation-delay: -3s; }

@keyframes fr-particle-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(20px, -15px) scale(1.03); }
  50% { transform: translate(-15px, 20px) scale(0.97); }
  75% { transform: translate(10px, 10px) scale(1.01); }
}

/* Hero Layout */
.fr-hero .container {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-top: 60px;
  padding-bottom: 60px;
}

.fr-hero__layout {
  display: grid;
  grid-template-columns: 1fr 480px;
  gap: 64px;
  align-items: center;
  margin-bottom: 56px;
}

/* Hero Content */
.fr-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-bottom: 24px;
}
.fr-hero__breadcrumb a { color: var(--text-tertiary); transition: color var(--transition-fast); }
.fr-hero__breadcrumb a:hover { color: var(--text-secondary); }
.fr-hero__breadcrumb svg { width: 12px; height: 12px; opacity: 0.4; }
.fr-hero__breadcrumb span { color: var(--accent-heat-light); }

.fr-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(232, 81, 45, 0.07);
  border: 1px solid rgba(232, 81, 45, 0.14);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-heat-light);
  margin-bottom: 28px;
}

.fr-hero__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-heat);
  animation: fr-dot-pulse 2.5s ease-in-out infinite;
}

@keyframes fr-dot-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.fr-hero__title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.fr-hero__title em {
  font-style: normal;
  background: linear-gradient(135deg, #E8512D 0%, #FF6B3D 35%, #F59E0B 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.fr-hero__subtitle {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 40px;
}

.fr-hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Thermal Diagram */
.fr-hero__thermal-diagram {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-elevated), 0 0 80px rgba(232, 81, 45, 0.06);
}

.fr-td__zone {
  padding: 28px 24px;
  text-align: center;
}

.fr-td__zone--hot {
  background: linear-gradient(135deg, rgba(232, 81, 45, 0.1), rgba(245, 158, 11, 0.05));
  border-bottom: 1px solid rgba(232, 81, 45, 0.1);
}

.fr-td__zone--cool {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.06), rgba(30, 60, 120, 0.04));
  border-top: 1px solid rgba(59, 130, 246, 0.1);
}

.fr-td__zone-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.fr-td__temp {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-heat-light);
  margin-bottom: 12px;
}

.fr-td__temp--cool {
  color: var(--accent-cool-light);
  font-size: 1.75rem;
}

.fr-td__arrows {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.fr-td__arrow {
  display: block;
  width: 32px;
  height: 4px;
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}

.fr-td__arrow::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, var(--accent-heat) 0px, var(--accent-heat) 6px, transparent 6px, transparent 12px);
  animation: fr-arrow-flow 1.2s linear infinite;
}

.fr-td__arrow--1::before { animation-delay: 0s; }
.fr-td__arrow--2::before { animation-delay: 0.4s; }
.fr-td__arrow--3::before { animation-delay: 0.8s; }

@keyframes fr-arrow-flow {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(50%); }
}

.fr-td__barrier {
  padding: 20px 24px;
  background: rgba(201, 209, 220, 0.03);
  border-top: 1px solid rgba(201, 209, 220, 0.08);
  border-bottom: 1px solid rgba(201, 209, 220, 0.08);
  position: relative;
  text-align: center;
}

.fr-td__barrier-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-silica-muted);
  margin-bottom: 8px;
}

.fr-td__barrier-thickness {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-heat-light);
  margin-bottom: 12px;
}

.fr-td__barrier-dots {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 3px;
  margin-bottom: 12px;
}

.fr-td__barrier-dots span {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(201, 209, 220, 0.12);
}

.fr-td__barrier-tag {
  display: inline-flex;
  padding: 4px 10px;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.15);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-success);
}

.fr-td__cool-icons {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 12px;
}

.fr-td__cool-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(59, 130, 246, 0.06);
  border: 1px solid rgba(59, 130, 246, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.fr-td__cool-icon svg {
  width: 18px;
  height: 18px;
  color: var(--accent-cool-light);
  opacity: 0.7;
}

.fr-td__temp-scale {
  padding: 16px 24px 20px;
  background: rgba(10, 12, 16, 0.4);
}

.fr-td__scale-bar {
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent-heat) 0%, #F59E0B 35%, rgba(201, 209, 220, 0.3) 60%, var(--accent-cool) 100%);
  margin-bottom: 8px;
}

.fr-td__scale-labels {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* Hero Strip */
.fr-hero__strip {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.fr-hero__strip-item {
  flex: 1;
  padding: 20px 16px;
  text-align: center;
}

.fr-hero__strip-value {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--accent-heat-light);
  margin-bottom: 4px;
}

.fr-hero__strip-label {
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  letter-spacing: 0.02em;
}

.fr-hero__strip-div {
  width: 1px;
  height: 40px;
  background: var(--border-subtle);
  flex-shrink: 0;
}

/* ============================================================
   STICKY NAV
   ============================================================ */
.fr-nav {
  position: sticky;
  top: 72px;
  z-index: 900;
  background: rgba(10, 12, 16, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transform: translateY(-100%);
  opacity: 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.fr-nav.visible {
  transform: translateY(0);
  opacity: 1;
}

.fr-nav__inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  overflow-x: auto;
  scrollbar-width: none;
}
.fr-nav__inner::-webkit-scrollbar { display: none; }

.fr-nav__link {
  flex-shrink: 0;
  padding: 14px 12px;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  transition: all var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

.fr-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 12px;
  right: 12px;
  height: 2px;
  background: var(--accent-heat);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.fr-nav__link:hover { color: var(--text-secondary); }
.fr-nav__link.active { color: var(--accent-heat-light); }
.fr-nav__link.active::after { transform: scaleX(1); }

.fr-nav__cta {
  flex-shrink: 0;
  margin-left: auto;
  padding-left: 16px;
}

/* ============================================================
   WHY FIRE RESISTANCE MATTERS
   ============================================================ */
.fr-why__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

/* Risk Diagram */
.fr-why__risk-map {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.fr-risk-diagram {
  padding: 36px;
}

.fr-risk__header {
  margin-bottom: 28px;
}

.fr-risk__title {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.fr-risk__subtitle {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.fr-risk__zones {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.fr-risk__zone {
  flex: 1;
  text-align: center;
  padding: 16px 8px;
  border-radius: var(--radius-md);
  border: 1px solid;
}

.fr-risk__zone--origin {
  background: rgba(232, 81, 45, 0.05);
  border-color: rgba(232, 81, 45, 0.12);
}
.fr-risk__zone--adjacent {
  background: rgba(245, 158, 11, 0.05);
  border-color: rgba(245, 158, 11, 0.12);
}
.fr-risk__zone--system {
  background: rgba(239, 68, 68, 0.05);
  border-color: rgba(239, 68, 68, 0.12);
}
.fr-risk__zone--safe {
  background: rgba(34, 197, 94, 0.05);
  border-color: rgba(34, 197, 94, 0.12);
}

.fr-risk__zone-icon {
  width: 28px;
  height: 28px;
  margin: 0 auto 8px;
}
.fr-risk__zone--origin .fr-risk__zone-icon { color: var(--accent-heat); }
.fr-risk__zone--adjacent .fr-risk__zone-icon { color: #F59E0B; }
.fr-risk__zone--system .fr-risk__zone-icon { color: #EF4444; }
.fr-risk__zone--safe .fr-risk__zone-icon { color: var(--color-success); }
.fr-risk__zone-icon svg { width: 100%; height: 100%; }

.fr-risk__zone-label {
  font-size: 0.625rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.04em;
}
.fr-risk__zone-label span {
  display: block;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: 2px;
}

.fr-risk__propagation {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.fr-risk__arrow {
  width: 32px;
  height: 3px;
  background: repeating-linear-gradient(90deg, rgba(239, 68, 68, 0.4) 0, rgba(239, 68, 68, 0.4) 4px, transparent 4px, transparent 8px);
  border-radius: 2px;
}

.fr-risk__propagation span {
  font-size: 0.5rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-align: center;
  white-space: nowrap;
}

.fr-risk__vs {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.fr-risk__vs-label {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-success);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.fr-risk__vs-label::before {
  content: '';
  display: block;
  width: 16px;
  height: 1px;
  background: var(--color-success);
}

.fr-risk__zones--protected {
  margin-bottom: 0;
}

.fr-risk__barrier-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.fr-risk__barrier-icon {
  width: 24px;
  height: 24px;
  color: var(--accent-silica-muted);
}
.fr-risk__barrier-icon svg { width: 100%; height: 100%; }

.fr-risk__barrier-text {
  font-size: 0.5rem;
  color: var(--text-tertiary);
  text-align: center;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.3;
}

.fr-risk__barrier-check {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.1);
  color: var(--color-success);
  display: flex;
  align-items: center;
  justify-content: center;
}
.fr-risk__barrier-check svg { width: 10px; height: 10px; }

/* Why Content */
.fr-why__content {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.fr-why__point {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.fr-why__point-num {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-heat);
  opacity: 0.5;
  padding-top: 2px;
}

.fr-why__point-body h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.fr-why__point-body p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.fr-why__callout {
  margin-top: 8px;
  padding: 24px;
  background: rgba(232, 81, 45, 0.04);
  border: 1px solid rgba(232, 81, 45, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.fr-why__callout-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  color: var(--accent-heat);
  margin-top: 2px;
}
.fr-why__callout-icon svg { width: 100%; height: 100%; }

.fr-why__callout-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.fr-why__callout-text strong { color: var(--accent-heat-light); }

/* ============================================================
   PROTECTION LOGIC
   ============================================================ */
.fr-logic__diagram-wrap {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 64px;
}

.fr-logic__diagram {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  min-height: 280px;
}

.fr-logic__source,
.fr-logic__protected {
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.fr-logic__source {
  background: linear-gradient(135deg, rgba(232, 81, 45, 0.08), rgba(245, 158, 11, 0.04));
  border-right: 1px solid rgba(232, 81, 45, 0.1);
}

.fr-logic__protected {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(30, 60, 120, 0.03));
  border-left: 1px solid rgba(59, 130, 246, 0.1);
}

.fr-logic__source-label,
.fr-logic__protected-label {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.fr-logic__source-label { color: var(--accent-heat); }
.fr-logic__protected-label { color: var(--accent-cool-light); }

.fr-logic__source-temp {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.fr-logic__protected-temp {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-success);
  margin-bottom: 16px;
}

.fr-logic__heat-paths {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fr-logic__path {
  display: flex;
  align-items: center;
  gap: 10px;
}

.fr-logic__path-line {
  height: 3px;
  width: 48px;
  border-radius: 2px;
  flex-shrink: 0;
}

.fr-logic__path--conduct .fr-logic__path-line {
  background: var(--accent-heat);
  opacity: 0.6;
}
.fr-logic__path--convect .fr-logic__path-line {
  background: #F59E0B;
  opacity: 0.6;
}
.fr-logic__path--radiate .fr-logic__path-line {
  background: #FF6B3D;
  opacity: 0.6;
}

.fr-logic__path-label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
}

.fr-logic__protected-systems {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.fr-logic__protected-systems span {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.fr-logic__protected-systems span::before {
  content: '';
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-success);
  flex-shrink: 0;
}

/* Barrier section */
.fr-logic__barrier-section {
  padding: 32px 24px;
  background: rgba(201, 209, 220, 0.02);
  border-left: 1px solid rgba(201, 209, 220, 0.06);
  border-right: 1px solid rgba(201, 209, 220, 0.06);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.fr-logic__barrier-label {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-silica-muted);
  margin-bottom: 16px;
  text-align: center;
}

.fr-logic__barrier-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
}

.fr-logic__barrier-pores {
  display: flex;
  justify-content: center;
}

.fr-logic__pore-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  width: 100%;
  max-width: 200px;
}

.fr-logic__pore-grid span {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(201, 209, 220, 0.08);
  border: 1px solid rgba(201, 209, 220, 0.04);
}

.fr-logic__barrier-intercepts {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.fr-logic__intercept {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.fr-logic__intercept svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--color-success);
  margin-top: 1px;
}

.fr-logic__intercept span {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  line-height: 1.5;
}

/* Logic Functions */
.fr-logic__functions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.fr-logic__fn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.fr-logic__fn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(232, 81, 45, 0.15), transparent);
}

.fr-logic__fn:hover {
  border-color: rgba(232, 81, 45, 0.12);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card), 0 0 30px rgba(232, 81, 45, 0.05);
}

.fr-logic__fn-num {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--accent-heat);
  opacity: 0.4;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.fr-logic__fn-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(232, 81, 45, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.fr-logic__fn-icon svg { width: 18px; height: 18px; color: var(--accent-heat-light); }

.fr-logic__fn h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.fr-logic__fn p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ============================================================
   FIRE PERFORMANCE HIGHLIGHTS
   ============================================================ */
.fr-perf__hero-metric {
  margin-bottom: 64px;
}

.fr-perf__test-narrative {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.fr-perf__test-header {
  padding: 24px 36px;
  background: rgba(232, 81, 45, 0.04);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.fr-perf__test-badge {
  display: inline-flex;
  padding: 4px 12px;
  background: rgba(232, 81, 45, 0.08);
  border: 1px solid rgba(232, 81, 45, 0.15);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-heat-light);
}

.fr-perf__test-condition {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
}

.fr-perf__test-comparison {
  padding: 40px 36px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.fr-perf__test-col {
  flex: 1;
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid;
}

.fr-perf__test-col--fail {
  background: rgba(239, 68, 68, 0.03);
  border-color: rgba(239, 68, 68, 0.08);
}

.fr-perf__test-col--pass {
  background: rgba(34, 197, 94, 0.04);
  border-color: rgba(34, 197, 94, 0.12);
  position: relative;
}

.fr-perf__test-col--pass::before {
  content: 'LEVRON ADVANTAGE';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-success);
  color: var(--bg-primary);
  font-family: var(--font-mono);
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 3px 10px;
  border-radius: 0 0 8px 8px;
}

.fr-perf__test-material {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.fr-perf__test-thickness {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.fr-perf__test-col--fail .fr-perf__test-thickness { color: var(--text-tertiary); }
.fr-perf__test-col--pass .fr-perf__test-thickness { color: var(--accent-heat-light); }

.fr-perf__test-timeline { margin-bottom: 16px; }

.fr-perf__timeline-bar {
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 3px;
  position: relative;
  overflow: visible;
}

.fr-perf__timeline-fill {
  height: 100%;
  border-radius: 3px;
  position: relative;
}

.fr-perf__timeline-fill--fail {
  background: linear-gradient(90deg, rgba(239, 68, 68, 0.4), rgba(239, 68, 68, 0.2));
}

.fr-perf__timeline-fill--pass {
  background: linear-gradient(90deg, rgba(34, 197, 94, 0.3), rgba(34, 197, 94, 0.5));
}

.fr-perf__timeline-marker {
  position: absolute;
  top: -22px;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  color: #EF4444;
  white-space: nowrap;
}

.fr-perf__timeline-marker--pass {
  color: var(--color-success);
}

.fr-perf__test-result {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
}

.fr-perf__test-result svg { width: 14px; height: 14px; flex-shrink: 0; }

.fr-perf__test-result--fail {
  color: #EF4444;
}

.fr-perf__test-result--pass {
  color: var(--color-success);
}

.fr-perf__test-plus,
.fr-perf__test-vs {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-muted);
  flex-shrink: 0;
}

.fr-perf__test-vs {
  font-size: 0.875rem;
  color: var(--accent-heat);
}

.fr-perf__test-footnote {
  padding: 16px 36px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(10, 12, 16, 0.3);
}

.fr-perf__test-footnote svg {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  flex-shrink: 0;
  margin-top: 1px;
}

.fr-perf__test-footnote {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Performance Grid */
.fr-perf__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 64px;
}

.fr-perf__card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.fr-perf__card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.04), transparent);
}

.fr-perf__card:hover {
  border-color: rgba(232, 81, 45, 0.12);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.fr-perf__card--primary {
  border-color: rgba(232, 81, 45, 0.15);
  background: rgba(232, 81, 45, 0.03);
}

.fr-perf__card-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.fr-perf__card-value {
  font-family: var(--font-mono);
  font-size: 1.625rem;
  font-weight: 800;
  color: var(--accent-heat-light);
  line-height: 1.1;
  margin-bottom: 4px;
}

.fr-perf__card-value span {
  font-size: 1rem;
  color: var(--text-tertiary);
}

.fr-perf__card-unit {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-weight: 500;
  margin-bottom: 14px;
}

.fr-perf__card-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 14px;
}

.fr-perf__card-tag {
  display: inline-flex;
  padding: 3px 10px;
  background: rgba(232, 81, 45, 0.06);
  border: 1px solid rgba(232, 81, 45, 0.1);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-heat-light);
}

/* Performance Table */
.fr-perf__table-wrap {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.fr-perf__table-header {
  padding: 28px 32px;
  border-bottom: 1px solid var(--border-subtle);
}

.fr-perf__table-header h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

/* ============================================================
   TEMPERATURE RESILIENCE
   ============================================================ */
.fr-res__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.fr-res__dimensions {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.fr-res__dim {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.fr-res__dim:hover {
  border-color: var(--border-medium);
  background: rgba(255, 255, 255, 0.03);
}

.fr-res__dim-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 8px;
  background: rgba(232, 81, 45, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
}
.fr-res__dim-icon svg { width: 18px; height: 18px; color: var(--accent-heat-light); }

.fr-res__dim h5 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.fr-res__dim p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Temperature Range Diagram */
.fr-temp-range {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px;
}

.fr-temp-range__header {
  margin-bottom: 24px;
}

.fr-temp-range__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.fr-temp-range__scale {
  margin-bottom: 24px;
}

.fr-temp-range__bar {
  display: flex;
  height: 40px;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 8px;
}

.fr-temp-range__segment {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-align: center;
  line-height: 1.3;
}

.fr-temp-range__segment--cryo {
  flex: 1;
  background: rgba(59, 130, 246, 0.2);
  color: var(--accent-cool-light);
}
.fr-temp-range__segment--ambient {
  flex: 2;
  background: rgba(201, 209, 220, 0.06);
  color: var(--text-muted);
}
.fr-temp-range__segment--high {
  flex: 2;
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.1), rgba(232, 81, 45, 0.15));
  color: #F59E0B;
}
.fr-temp-range__segment--extreme {
  flex: 2;
  background: linear-gradient(90deg, rgba(232, 81, 45, 0.15), rgba(232, 81, 45, 0.3));
  color: var(--accent-heat-light);
}

.fr-temp-range__seg-label { padding: 4px; }

.fr-temp-range__markers {
  position: relative;
  height: 20px;
}
.fr-temp-range__mark {
  position: absolute;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.fr-temp-range__configs {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
  padding: 20px;
  background: rgba(10, 12, 16, 0.4);
  border-radius: var(--radius-md);
}

.fr-temp-range__config {
  display: flex;
  align-items: center;
  gap: 12px;
}

.fr-temp-range__config-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.fr-temp-range__config-dot--standard { background: var(--accent-heat); }
.fr-temp-range__config-dot--extreme { background: var(--accent-heat-light); box-shadow: 0 0 8px rgba(232, 81, 45, 0.5); }

.fr-temp-range__config strong {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
}
.fr-temp-range__config span {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.fr-temp-range__applications {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.fr-temp-range__app {
  text-align: center;
  padding: 12px;
  background: rgba(232, 81, 45, 0.04);
  border: 1px solid rgba(232, 81, 45, 0.08);
  border-radius: var(--radius-md);
}

.fr-temp-range__app-range {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--accent-heat-light);
  margin-bottom: 4px;
}

.fr-temp-range__app-label {
  font-size: 0.625rem;
  color: var(--text-muted);
  line-height: 1.3;
}

/* Resilience Callout */
.fr-res__callout {
  margin-top: 64px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.fr-res__callout-grid {
  display: flex;
}

.fr-res__callout-item {
  flex: 1;
  padding: 28px 24px;
  text-align: center;
}

.fr-res__callout-val {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--accent-heat-light);
  margin-bottom: 6px;
}

.fr-res__callout-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  line-height: 1.5;
}

.fr-res__callout-div {
  width: 1px;
  background: var(--border-subtle);
}

/* ============================================================
   THIN BARRIER
   ============================================================ */
.fr-thin__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

/* Comparison Chart */
.fr-thin__comparison-chart {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px;
}

.fr-thin__chart-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.fr-thin__bars {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 28px;
}

.fr-thin__bar-group { display: flex; flex-direction: column; gap: 8px; }

.fr-thin__bar-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.fr-thin__bar-material {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.fr-thin__bar-result {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 100px;
}

.fr-thin__bar-result--fail {
  background: rgba(239, 68, 68, 0.08);
  color: #EF4444;
  border: 1px solid rgba(239, 68, 68, 0.15);
}
.fr-thin__bar-result--pass {
  background: rgba(34, 197, 94, 0.08);
  color: var(--color-success);
  border: 1px solid rgba(34, 197, 94, 0.15);
}

.fr-thin__bar-wrap { position: relative; }

.fr-thin__bar {
  height: 36px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.fr-thin__bar--fail {
  background: rgba(90, 98, 117, 0.08);
  border: 1px solid rgba(90, 98, 117, 0.1);
}

.fr-thin__bar--pass {
  background: linear-gradient(90deg, rgba(232, 81, 45, 0.15), rgba(232, 81, 45, 0.06));
  border: 1px solid rgba(232, 81, 45, 0.2);
  box-shadow: 0 0 20px rgba(232, 81, 45, 0.08);
}

.fr-thin__bar-val {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
}

.fr-thin__bar--fail .fr-thin__bar-val { color: var(--text-tertiary); }
.fr-thin__bar--pass .fr-thin__bar-val { color: var(--accent-heat-light); }

.fr-thin__chart-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  line-height: 1.5;
}

/* Space diagram */
.fr-thin__space-diagram {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: 20px;
}

.fr-thin__space-title {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.fr-thin__space-blocks {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.fr-thin__space-block { }

.fr-thin__space-bar-row {
  display: flex;
  height: 32px;
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 6px;
}

.fr-thin__space-segment {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 600;
  text-align: center;
  line-height: 1.3;
}

.fr-thin__space-segment--stone { background: rgba(90, 98, 117, 0.12); color: var(--text-tertiary); }
.fr-thin__space-segment--glass { background: rgba(90, 98, 117, 0.08); color: var(--text-muted); }
.fr-thin__space-segment--levron { background: rgba(232, 81, 45, 0.15); color: var(--accent-heat-light); }
.fr-thin__space-segment--free {
  background: rgba(34, 197, 94, 0.04);
  border: 1px dashed rgba(34, 197, 94, 0.15);
  color: var(--color-success);
  font-size: 0.5rem;
}
.fr-thin__space-segment--free span { white-space: nowrap; }

.fr-thin__space-block-label {
  font-size: 0.625rem;
  color: var(--text-muted);
}

.fr-thin__space-vs {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-align: center;
}

/* Thin Content */
.fr-thin__content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.fr-thin__point {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.fr-thin__point:hover {
  border-color: var(--border-medium);
  background: var(--bg-tertiary);
}

.fr-thin__point-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 8px;
  background: rgba(232, 81, 45, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
}
.fr-thin__point-icon svg { width: 18px; height: 18px; color: var(--accent-heat-light); }

.fr-thin__point h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.fr-thin__point p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.fr-thin__summary {
  padding: 24px;
  background: rgba(232, 81, 45, 0.04);
  border: 1px solid rgba(232, 81, 45, 0.12);
  border-radius: var(--radius-md);
}

.fr-thin__summary-metric {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.fr-thin__summary-val {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-heat-light);
  flex-shrink: 0;
  line-height: 1;
}

.fr-thin__summary-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  padding-top: 4px;
}

/* ============================================================
   MOISTURE & DURABILITY
   ============================================================ */
.fr-moist__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

/* Radar Chart */
.fr-moist__radar-wrap {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px;
  text-align: center;
}

.fr-moist__radar-title {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.fr-moist__radar {
  width: 100%;
  max-width: 300px;
  margin: 0 auto;
}

/* Moisture Content */
.fr-moist__content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.fr-moist__point-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.fr-moist__point-icon {
  font-size: 1.25rem;
}

.fr-moist__point h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
}

.fr-moist__point p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Comparison Panel */
.fr-moist__comparison-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.fr-moist__cmp-header {
  padding: 14px 20px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.fr-moist__cmp-rows {
  padding: 0;
}

.fr-moist__cmp-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1.2fr;
  gap: 12px;
  padding: 12px 20px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
  align-items: center;
}

.fr-moist__cmp-row--header {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.fr-moist__cmp-row--levron {
  background: rgba(34, 197, 94, 0.03);
  color: var(--text-primary);
  font-weight: 600;
}

.fr-moist__cmp-bad { color: #EF4444; font-weight: 600; }
.fr-moist__cmp-good { color: var(--color-success); font-weight: 700; }

.fr-moist__cmp-note {
  padding: 12px 20px;
  color: var(--text-muted) !important;
  font-size: 0.6875rem !important;
  line-height: 1.5;
  border-top: 1px solid var(--border-subtle);
}

/* ============================================================
   COMPARISON
   ============================================================ */
.fr-cmp__table-wrap {
  margin-bottom: 40px;
}

.fr-cmp__benchmark-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.fr-cmp__card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition-base);
}

.fr-cmp__card:hover {
  border-color: rgba(232, 81, 45, 0.12);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.fr-cmp__card-metric {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-heat-light);
  margin-bottom: 8px;
}

.fr-cmp__card-label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.fr-cmp__disclaimer {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 20px 24px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.fr-cmp__disclaimer svg {
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  flex-shrink: 0;
  margin-top: 1px;
}

.fr-cmp__disclaimer p {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================================
   APPLICATIONS
   ============================================================ */
.fr-apps__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.fr-app-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.fr-app-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(232, 81, 45, 0.15), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.fr-app-card:hover {
  border-color: rgba(232, 81, 45, 0.12);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card), 0 0 40px rgba(232, 81, 45, 0.06);
}

.fr-app-card:hover::before { opacity: 1; }

.fr-app-card__icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.fr-app-card__category {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.fr-app-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.fr-app-card__desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}

.fr-app-card__need-met {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.fr-app-card__need-met span {
  display: inline-flex;
  padding: 3px 10px;
  background: rgba(232, 81, 45, 0.06);
  border: 1px solid rgba(232, 81, 45, 0.1);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-heat-light);
}

.fr-app-card__link {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-heat-light);
  transition: color var(--transition-fast);
  margin-top: auto;
}

.fr-app-card__link:hover { color: var(--accent-heat); }

/* ============================================================
   MATERIAL SCIENCE
   ============================================================ */
.fr-sci__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.fr-sci__blocks {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 40px;
}

.fr-sci__block {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.fr-sci__block:hover {
  border-color: var(--border-medium);
  background: rgba(255, 255, 255, 0.03);
}

.fr-sci__block-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 8px;
  background: rgba(232, 81, 45, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
}
.fr-sci__block-icon svg { width: 18px; height: 18px; color: var(--accent-heat-light); }

.fr-sci__block h5 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.fr-sci__block p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Structure-Property-Performance */
.fr-sci__spp {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px;
}

.fr-sci__spp-title {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.fr-sci__spp-chain {
  display: flex;
  align-items: stretch;
  gap: 8px;
  margin-bottom: 32px;
}

.fr-sci__spp-node {
  flex: 1;
  border-radius: var(--radius-md);
  border: 1px solid;
  padding: 20px 16px;
}

.fr-sci__spp-node--structure {
  background: rgba(59, 130, 246, 0.04);
  border-color: rgba(59, 130, 246, 0.1);
}
.fr-sci__spp-node--property {
  background: rgba(245, 158, 11, 0.04);
  border-color: rgba(245, 158, 11, 0.1);
}
.fr-sci__spp-node--performance {
  background: rgba(34, 197, 94, 0.04);
  border-color: rgba(34, 197, 94, 0.1);
}

.fr-sci__spp-node-icon { font-size: 1.25rem; margin-bottom: 10px; }

.fr-sci__spp-node-title {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.fr-sci__spp-node--structure .fr-sci__spp-node-title { color: var(--accent-cool-light); }
.fr-sci__spp-node--property .fr-sci__spp-node-title { color: #F59E0B; }
.fr-sci__spp-node--performance .fr-sci__spp-node-title { color: var(--color-success); }

.fr-sci__spp-node ul {
  list-style: none;
  padding: 0;
}
.fr-sci__spp-node ul li {
  font-size: 0.6875rem;
  color: var(--text-secondary);
  padding: 2px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}
.fr-sci__spp-node ul li::before {
  content: '·';
  color: var(--text-muted);
}

.fr-sci__spp-arrow {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

/* Nano-pore visualization */
.fr-sci__nanopore {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
}

.fr-sci__nanopore-title {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.fr-sci__nanopore-visual { }

.fr-sci__np-zones {
  display: flex;
  align-items: stretch;
  border-radius: var(--radius-sm);
  overflow: hidden;
  height: 80px;
}

.fr-sci__np-zone {
  width: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.5rem;
  font-weight: 700;
  text-align: center;
  gap: 2px;
}

.fr-sci__np-zone--hot {
  background: linear-gradient(90deg, rgba(232, 81, 45, 0.2), rgba(232, 81, 45, 0.08));
  color: var(--accent-heat-light);
}

.fr-sci__np-zone--cool {
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.08), rgba(59, 130, 246, 0.15));
  color: var(--accent-cool-light);
}

.fr-sci__np-structure {
  flex: 1;
  background: rgba(201, 209, 220, 0.03);
  padding: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.fr-sci__np-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3px;
  width: 100%;
}

.fr-sci__np-node {
  display: block;
  border-radius: 50%;
  background: rgba(201, 209, 220, 0.1);
  border: 1px solid rgba(201, 209, 220, 0.06);
  aspect-ratio: 1;
  width: 100%;
}

.fr-sci__np-scale-label {
  font-family: var(--font-mono);
  font-size: 0.4375rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-align: center;
}

/* ============================================================
   PLATFORM CONNECTIONS
   ============================================================ */
.fr-platform__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.fr-platform__section-label {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.fr-platform__cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.fr-platform__card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  transition: all var(--transition-base);
}

.fr-platform__card:hover {
  border-color: rgba(232, 81, 45, 0.15);
  background: var(--bg-tertiary);
  transform: translateX(4px);
}

.fr-platform__card--product .fr-platform__card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(232, 81, 45, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.fr-platform__card--product .fr-platform__card-icon svg {
  width: 20px;
  height: 20px;
  color: var(--accent-heat-light);
}

.fr-platform__card--solution .fr-platform__card-icon {
  font-size: 1.25rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.fr-platform__card-body { flex: 1; }

.fr-platform__card-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.fr-platform__card-sub {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.fr-platform__card-specs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.fr-platform__card-specs span {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent-heat-light);
  background: rgba(232, 81, 45, 0.06);
  padding: 2px 8px;
  border-radius: 100px;
}

.fr-platform__card-arrow {
  font-size: 1rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}
.fr-platform__card:hover .fr-platform__card-arrow {
  color: var(--accent-heat-light);
  transform: translateX(4px);
}

/* ============================================================
   WHY LEVRON
   ============================================================ */
.fr-why-levron__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.fr-wl__pillars {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 40px;
}

.fr-wl__pillar {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.fr-wl__pillar:last-child { border-bottom: none; }

.fr-wl__pillar-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-heat-light);
  line-height: 1;
  flex-shrink: 0;
  min-width: 64px;
}

.fr-wl__pillar-unit {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-tertiary);
  padding-top: 6px;
  flex-shrink: 0;
}

.fr-wl__pillar-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  padding-top: 4px;
}

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

.fr-wl__card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition-base);
}

.fr-wl__card:hover {
  border-color: var(--border-medium);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.fr-wl__card-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(232, 81, 45, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.fr-wl__card-icon svg { width: 18px; height: 18px; color: var(--accent-heat-light); }

.fr-wl__card h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.fr-wl__card p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ============================================================
   RESOURCES
   ============================================================ */
.fr-resources__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.fr-resource {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-base);
}

.fr-resource:hover {
  border-color: var(--border-medium);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.fr-resource__icon {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.fr-resource__type {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-heat-light);
  margin-bottom: 10px;
}

.fr-resource__title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.fr-resource__desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 16px;
}

.fr-resource__link {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-heat-light);
  transition: color var(--transition-fast);
}
.fr-resource__link:hover { color: var(--accent-heat); }

/* FAQ */
.fr-faq {
  margin-bottom: 64px;
}

.fr-faq__title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.fr-faq__items {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fr-faq__item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.fr-faq__item[open] {
  border-color: rgba(232, 81, 45, 0.12);
}

.fr-faq__item summary {
  padding: 20px 24px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: background var(--transition-fast);
}

.fr-faq__item summary:hover { background: rgba(255, 255, 255, 0.02); }

.fr-faq__item summary::after {
  content: '+';
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--accent-heat);
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.fr-faq__item[open] summary::after {
  transform: rotate(45deg);
}

.fr-faq__item p {
  padding: 0 24px 20px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--border-subtle);
  padding-top: 20px;
}

/* Glossary */
.fr-glossary {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px;
}

.fr-glossary__title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.fr-glossary__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.fr-glossary__term { }

.fr-glossary__term dt {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent-heat-light);
  margin-bottom: 6px;
}

.fr-glossary__term dd {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   FINAL CTA
   ============================================================ */
.fr-cta__pathways {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.fr-cta-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.fr-cta-card:hover {
  border-color: rgba(232, 81, 45, 0.15);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.fr-cta-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(232, 81, 45, 0.07);
  display: flex;
  align-items: center;
  justify-content: center;
}
.fr-cta-card__icon svg { width: 24px; height: 24px; color: var(--accent-heat-light); }

.fr-cta-card h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
}

.fr-cta-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

/* Contact block */
.fr-cta__contact {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.fr-cta__contact-left {
  padding: 48px 0 48px 48px;
}

.fr-cta__contact-left h3 {
  font-size: 1.625rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.fr-cta__contact-left .text-lg {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.fr-cta__contact-options {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.fr-cta__contact-option {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.fr-cta__contact-option-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(232, 81, 45, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.fr-cta__contact-option-icon svg { width: 18px; height: 18px; color: var(--accent-heat-light); }

.fr-cta__contact-option-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.fr-cta__contact-option-desc {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* Form Panel */
.fr-cta__form-panel {
  background: var(--bg-tertiary);
  border-left: 1px solid var(--border-subtle);
  padding: 48px;
}

.fr-contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.fr-contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fr-contact-form__field label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.fr-contact-form__field input,
.fr-contact-form__field select,
.fr-contact-form__field textarea {
  background: var(--bg-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  font-size: 0.875rem;
  color: var(--text-primary);
  font-family: var(--font-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  resize: vertical;
}

.fr-contact-form__field input:focus,
.fr-contact-form__field select:focus,
.fr-contact-form__field textarea:focus {
  border-color: rgba(232, 81, 45, 0.3);
  box-shadow: 0 0 0 3px rgba(232, 81, 45, 0.08);
}

.fr-contact-form__field input::placeholder,
.fr-contact-form__field textarea::placeholder {
  color: var(--text-muted);
}

.fr-contact-form__field select option {
  background: var(--bg-elevated);
}

.fr-contact-form__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.fr-contact-form__privacy {
  color: var(--text-muted) !important;
  font-size: 0.6875rem !important;
}

.fr-contact-form__success {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  background: rgba(34, 197, 94, 0.07);
  border: 1px solid rgba(34, 197, 94, 0.15);
  border-radius: var(--radius-md);
}

.fr-contact-form__success svg {
  width: 20px;
  height: 20px;
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 2px;
}

.fr-contact-form__success strong {
  display: block;
  font-size: 0.9375rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.fr-contact-form__success p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 64px 0 32px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand { }

.footer__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer__tagline {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  line-height: 1.6;
  margin-bottom: 16px;
  max-width: 280px;
}

.footer__by {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
}

.footer__by span { color: var(--text-muted); }
.footer__by strong { color: var(--text-tertiary); }

.footer__nav-title {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer__nav-link {
  display: block;
  font-size: 0.875rem;
  color: var(--text-tertiary);
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.footer__nav-link:hover { color: var(--text-secondary); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.footer__bottom-right {
  max-width: 500px;
  text-align: right;
}

/* ============================================================
   COMPARISON TABLE SHARED STYLES
   ============================================================ */
.comparison__table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
}

.comparison__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.comparison__table th {
  padding: 16px 20px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-tertiary);
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.comparison__table th:first-child {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.comparison__table td {
  padding: 14px 20px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
  line-height: 1.5;
}

.comparison__table tr:last-child td {
  border-bottom: none;
}

.comparison__table tr:hover td {
  background: rgba(255, 255, 255, 0.01);
}

.comparison__col--highlight {
  background: rgba(232, 81, 45, 0.03) !important;
}

.comparison__table td:last-child {
  background: rgba(232, 81, 45, 0.02);
}

.comparison__highlight {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-success);
  font-weight: 600;
}

.comparison__highlight svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1200px) {
  .fr-hero__layout { grid-template-columns: 1fr 420px; gap: 48px; }
  .fr-perf__grid { grid-template-columns: repeat(3, 1fr); }
  .fr-logic__functions { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1024px) {
  .fr-hero__layout { grid-template-columns: 1fr; gap: 48px; }
  .fr-hero__visual { max-width: 560px; }
  .fr-hero__thermal-diagram { flex-direction: row; }
  .fr-td__zone, .fr-td__barrier { flex: 1; }
  .fr-why__grid { grid-template-columns: 1fr; }
  .fr-res__grid { grid-template-columns: 1fr; }
  .fr-thin__layout { grid-template-columns: 1fr; }
  .fr-moist__grid { grid-template-columns: 1fr; }
  .fr-sci__grid { grid-template-columns: 1fr; }
  .fr-platform__grid { grid-template-columns: 1fr; }
  .fr-why-levron__grid { grid-template-columns: 1fr; }
  .fr-cta__contact { grid-template-columns: 1fr; }
  .fr-cta__contact-left { padding: 40px; }
  .fr-cta__form-panel { padding: 40px; }
}

@media (max-width: 768px) {
  .fr-perf__grid { grid-template-columns: repeat(2, 1fr); }
  .fr-perf__test-comparison { flex-direction: column; }
  .fr-perf__test-plus, .fr-perf__test-vs { text-align: center; }
  .fr-apps__grid { grid-template-columns: 1fr; }
  .fr-cmp__benchmark-cards { grid-template-columns: repeat(2, 1fr); }
  .fr-cta__pathways { grid-template-columns: 1fr; }
  .fr-cta__contact { grid-template-columns: 1fr; }
  .fr-hero__strip { flex-wrap: wrap; }
  .fr-hero__strip-div { display: none; }
  .fr-hero__strip-item { min-width: 50%; }
  .fr-logic__diagram { grid-template-columns: 1fr; }
  .fr-logic__functions { grid-template-columns: 1fr; }
  .fr-sci__spp-chain { flex-direction: column; }
  .fr-sci__spp-arrow { transform: rotate(90deg); text-align: center; }
  .comparison__table { font-size: 0.75rem; }
  .fr-glossary__grid { grid-template-columns: 1fr; }
  .fr-resources__grid { grid-template-columns: 1fr; }
  .fr-contact-form__row { grid-template-columns: 1fr; }
  .fr-wl__cards { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .fr-res__callout-grid { flex-direction: column; }
  .fr-res__callout-div { width: 100%; height: 1px; }
  .fr-temp-range__applications { grid-template-columns: 1fr; }
  .fr-moist__cmp-row { grid-template-columns: 1fr 1fr; font-size: 0.6875rem; }
  .fr-moist__cmp-row--header { display: none; }
}

@media (max-width: 480px) {
  .fr-hero__title { font-size: 2.25rem; }
  .fr-perf__grid { grid-template-columns: 1fr; }
  .fr-cmp__benchmark-cards { grid-template-columns: 1fr; }
  .fr-platform__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; }
  .footer__bottom-right { text-align: left; }
}