/* ============================================================
   Ideal Fire – pages.css  (shared styles for all sub-pages)
   ============================================================ */

/* ── Reuse the same design tokens from style.css ─────────── */
:root {
  --clr-primary: #CC0000;
  --clr-primary-dark: #990000;
  --clr-primary-glow: rgba(204, 0, 0, 0.22);
  --clr-secondary: #ff4500;
  --clr-navy: #0d1b2a;
  --clr-navy-mid: #152232;
  --clr-navy-light: #1e3145;
  --clr-bg: #f5f7fa;
  --clr-bg-alt: #eef1f6;
  --clr-white: #ffffff;
  --clr-text: #1a2332;
  --clr-text-muted: #546e8a;
  --clr-border: #dde3ec;

  --grad-primary: linear-gradient(135deg, #CC0000 0%, #ff4500 100%);
  --grad-hero: linear-gradient(160deg, rgba(13, 27, 42, .92) 0%, rgba(13, 27, 42, .72) 50%, rgba(13, 27, 42, .88) 100%);

  --font-body: 'Inter', system-ui, sans-serif;
  --font-heading: 'Outfit', 'Inter', system-ui, sans-serif;

  --fs-xs: .75rem;
  --fs-sm: .875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 1.875rem;
  --fs-4xl: 2.25rem;
  --fs-5xl: 3rem;
  --fs-6xl: 3.75rem;

  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --radius-sm: .375rem;
  --radius-md: .625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, .10), 0 2px 6px rgba(0, 0, 0, .06);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, .14), 0 4px 12px rgba(0, 0, 0, .08);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, .18);
  --shadow-red: 0 8px 32px rgba(204, 0, 0, .32);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  --container-max: 1200px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  font-size: 16px;
  -webkit-text-size-adjust: 100%
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.65;
  color: var(--clr-text);
  background: var(--clr-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased
}

img {
  display: block;
  max-width: 100%;
  height: auto
}

a {
  color: inherit;
  text-decoration: none
}

ul {
  list-style: none
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none
}

/* ── Layout ──────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6)
}

.section {
  padding-block: var(--space-20)
}

.section-alt {
  background-color: var(--clr-bg-alt)
}

/* ── Typography helpers ──────────────────────────────────── */
.highlight {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text
}

.section-eyebrow {
  display: inline-block;
  color: var(--clr-primary);
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: var(--space-3)
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(var(--fs-3xl), 4vw, var(--fs-5xl));
  font-weight: 800;
  line-height: 1.15;
  color: var(--clr-navy);
  margin-bottom: var(--space-4)
}

.section-subtitle {
  font-size: var(--fs-lg);
  color: var(--clr-text-muted);
  line-height: 1.7
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: .875rem 2rem;
  font-family: var(--font-heading);
  font-size: var(--fs-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, .1);
  opacity: 0;
  transition: opacity var(--transition-fast)
}

.btn:hover::before {
  opacity: 1
}

.btn-primary {
  background: var(--grad-primary);
  color: var(--clr-white);
  box-shadow: var(--shadow-red)
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(230, 59, 46, .45)
}

.btn-outline {
  background: transparent;
  color: var(--clr-primary);
  border: 2px solid var(--clr-primary)
}

.btn-outline:hover {
  background: var(--clr-primary);
  color: white;
  transform: translateY(-2px)
}

.btn-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform var(--transition-base)
}

.btn:hover .btn-icon {
  transform: translateX(3px)
}

/* ── Skip link ───────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--clr-primary);
  color: white;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--fs-sm);
  z-index: 9999;
  transition: top var(--transition-fast)
}

.skip-link:focus {
  top: var(--space-4)
}

/* ── HEADER / NAV ────────────────────────────────────────── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(13, 27, 42, .0);
  backdrop-filter: blur(0px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition-slow), backdrop-filter var(--transition-slow), border-color var(--transition-slow), box-shadow var(--transition-slow)
}

.header.scrolled {
  background: rgba(13, 27, 42, .96);
  backdrop-filter: blur(20px);
  border-bottom-color: rgba(255, 255, 255, .08);
  box-shadow: 0 4px 32px rgba(0, 0, 0, .3)
}

.navbar {
  height: 100%
}

.nav-container {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  height: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6)
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0
}

.logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: var(--radius-sm)
}

.logo-text {
  display: flex;
  flex-direction: row;
  align-items: center;
  line-height: 1;
  gap: 0
}

.logo-text {
  display: flex;
  align-items: center;
  line-height: 1;
  gap: 8px;
}

.footer-logo .logo-name,
.footer-logo .logo-fire {
  font-size: 1.6rem;
  font-weight: 900;
}

.footer-logo .logo-text {
  gap: 9px;
}

.logo-name,
.logo-fire {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.logo-red {
  color: #E8321A;
}

.logo-gold {
  color: #FFB800;
}

.logo-fire {
  background: linear-gradient(135deg,
      #E8321A 0%,
      #F0441E 50%,
      #FFB800 100%);

  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;

  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto
}

.nav-link {
  position: relative;
  padding: var(--space-2) var(--space-4);
  color: rgba(255, 255, 255, .80);
  font-size: var(--fs-sm);
  font-weight: 500;
  border-radius: var(--radius-full);
  transition: color var(--transition-fast), background var(--transition-fast)
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 18px;
  height: 2px;
  background: var(--clr-primary);
  border-radius: 2px;
  transition: transform var(--transition-base)
}

.nav-link:hover,
.nav-link.active {
  color: var(--clr-white)
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: translateX(-50%) scaleX(1)
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: .55rem 1.25rem;
  background: var(--grad-primary);
  color: white;
  font-size: var(--fs-sm);
  font-weight: 600;
  font-family: var(--font-heading);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-red);
  transition: all var(--transition-base);
  flex-shrink: 0
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(230, 59, 46, .45)
}

/* Dropdown mega menu */
.nav-item {
  position: relative
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0)
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px;
  background: rgba(13, 27, 42, .97);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius-lg);
  padding: var(--space-3) 0;
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  z-index: 100
}

.dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  background: rgba(13, 27, 42, .97);
  border: 1px solid rgba(255, 255, 255, .1);
  border-bottom: none;
  border-right: none;
  rotate: 45deg
}

.dropdown-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  color: rgba(255, 255, 255, .75);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: all var(--transition-fast)
}

.dropdown-link:hover {
  color: white;
  background: rgba(204, 0, 0, .15);
  padding-left: calc(var(--space-5) + 4px)
}

.dropdown-link svg {
  width: 16px;
  height: 16px;
  color: var(--clr-primary);
  flex-shrink: 0
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 6px;
  border-radius: var(--radius-sm);
  flex-shrink: 0
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--clr-white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
  transform-origin: center
}

.hamburger.open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg)
}

.hamburger.open .hamburger-line:nth-child(2) {
  opacity: 0;
  width: 0
}

.hamburger.open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg)
}

/* Mobile nav */
@media(max-width:768px) {
  .nav-links {
    display: none;
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: rgba(13, 27, 42, .98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-6);
    gap: var(--space-2);
    overflow-y: auto
  }

  .nav-links.open {
    display: flex
  }

  .nav-link {
    font-size: var(--fs-base);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    border-bottom: 1px solid rgba(255, 255, 255, .06)
  }

  .nav-item {
    flex-direction: column
  }

  .dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: rgba(255, 255, 255, .04);
    min-width: unset;
    border-radius: var(--radius-md);
    margin-top: var(--space-2);
    box-shadow: none;
    border: none;
    backdrop-filter: none;
    padding: var(--space-2) 0
  }

  .dropdown::before {
    display: none
  }

  .nav-cta {
    display: none
  }

  .hamburger {
    display: flex
  }
}

/* ── PAGE HERO ───────────────────────────────────────────── */
.page-hero {
  position: relative;
  height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--clr-navy)
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0
}

.page-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center
}

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(13, 27, 42, .88) 0%, rgba(13, 27, 42, .70) 50%, rgba(13, 27, 42, .88) 100%)
}

.page-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding-top: var(--header-height)
}

.page-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  color: rgba(255, 255, 255, .6);
  font-size: var(--fs-sm)
}

.page-breadcrumb a {
  color: rgba(255, 255, 255, .6);
  transition: color var(--transition-fast)
}

.page-breadcrumb a:hover {
  color: var(--clr-primary)
}

.page-breadcrumb svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0
}

.page-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(var(--fs-3xl), 5vw, var(--fs-5xl));
  font-weight: 900;
  color: var(--clr-white);
  margin-bottom: var(--space-4);
  letter-spacing: -.02em
}

.page-hero-subtitle {
  color: rgba(255, 255, 255, .75);
  font-size: var(--fs-lg);
  max-width: 560px;
  margin: 0 auto
}

/* ── PRODUCT DETAIL ──────────────────────────────────────── */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start
}

.product-detail-image {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  position: relative
}

.product-detail-image img {
  width: 100%;
  height: 480px;
  object-fit: cover
}

.product-detail-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom right, rgba(204, 0, 0, .08), transparent);
  z-index: 1;
  pointer-events: none;
  border-radius: inherit
}

.product-detail-content {
  padding-top: var(--space-4)
}

.product-spec-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin: var(--space-6) 0
}

.product-spec-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
  transition: border-color var(--transition-base), box-shadow var(--transition-base)
}

.product-spec-item:hover {
  border-color: rgba(204, 0, 0, .25);
  box-shadow: var(--shadow-md)
}

.spec-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, rgba(204, 0, 0, .12), rgba(255, 69, 0, .08));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0
}

.spec-icon svg {
  width: 18px;
  height: 18px;
  color: var(--clr-primary)
}

.spec-label {
  font-weight: 700;
  font-size: var(--fs-sm);
  color: var(--clr-navy);
  display: block;
  margin-bottom: .2rem
}

.spec-value {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted)
}

/* Types / variants grid */
.types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-8)
}

.type-card {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base)
}

.type-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(204, 0, 0, .2)
}

.type-card-img {
  height: 180px;
  overflow: hidden
}

.type-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease
}

.type-card:hover .type-card-img img {
  transform: scale(1.06)
}

.type-card-body {
  padding: var(--space-5)
}

.type-card-title {
  font-family: var(--font-heading);
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--clr-navy);
  margin-bottom: var(--space-2)
}

.type-card-desc {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  line-height: 1.65
}

/* Features grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-8)
}

.feature-card {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base)
}

.feature-card:hover::before {
  transform: scaleX(1)
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg)
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(204, 0, 0, .12), rgba(255, 69, 0, .08));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4)
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  color: var(--clr-primary)
}

.feature-title {
  font-family: var(--font-heading);
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--clr-navy);
  margin-bottom: var(--space-2)
}

.feature-desc {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  line-height: 1.65
}

/* Applications section */
.applications-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6)
}

.app-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--clr-text);
  transition: all var(--transition-base)
}

.app-item:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  transform: translateX(4px)
}

.app-item::before {
  content: '🔥';
  font-size: var(--fs-base)
}

/* ── CTA STRIP ───────────────────────────────────────────── */
.cta-strip {
  background: var(--grad-primary);
  padding: var(--space-16) 0;
  text-align: center;
  position: relative;
  overflow: hidden
}

.cta-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")
}

.cta-strip-title {
  font-family: var(--font-heading);
  font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl));
  font-weight: 800;
  color: white;
  margin-bottom: var(--space-4)
}

.cta-strip-subtitle {
  color: rgba(255, 255, 255, .85);
  font-size: var(--fs-lg);
  margin-bottom: var(--space-8)
}

.cta-strip .btn-white {
  background: white;
  color: var(--clr-primary);
  font-weight: 700;
  box-shadow: 0 8px 32px rgba(0, 0, 0, .2)
}

.cta-strip .btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, .3)
}

/* ── FOOTER (shared) ─────────────────────────────────────── */
.footer {
  background: var(--clr-navy);
  color: rgba(255, 255, 255, .75)
}

.footer-top {
  padding: var(--space-16) 0
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10)
}

.footer-brand-desc {
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: rgba(255, 255, 255, .55);
  margin-top: var(--space-4);
  max-width: 280px
}

.footer-email {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-5);
  color: rgba(255, 255, 255, .7);
  font-size: var(--fs-sm);
  transition: color var(--transition-fast)
}

.footer-email:hover {
  color: var(--clr-primary)
}

.footer-email svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: white;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: var(--space-5)
}

.footer-link {
  display: block;
  color: rgba(255, 255, 255, .55);
  font-size: var(--fs-sm);
  padding: var(--space-1) 0;
  transition: color var(--transition-fast), padding-left var(--transition-fast)
}

.footer-link:hover {
  color: var(--clr-primary);
  padding-left: 6px
}

.footer-bottom {
  padding: var(--space-5) 0;
  border-top: 1px solid rgba(255, 255, 255, .08)
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, .4)
}

.footer-bottom-inner a {
  color: rgba(255, 255, 255, .4);
  transition: color var(--transition-fast)
}

.footer-bottom-inner a:hover {
  color: var(--clr-primary)
}

/* ── Related products ────────────────────────────────────── */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-8)
}

.related-card {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  text-decoration: none;
  display: block
}

.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(204, 0, 0, .2)
}

.related-card-img {
  height: 200px;
  overflow: hidden;
  position: relative
}

.related-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease
}

.related-card:hover .related-card-img img {
  transform: scale(1.06)
}

.related-card-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13, 27, 42, .6), transparent)
}

.related-card-body {
  padding: var(--space-5)
}

.related-card-tag {
  display: inline-block;
  background: linear-gradient(135deg, rgba(204, 0, 0, .1), rgba(255, 69, 0, .08));
  color: var(--clr-primary);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .25rem .75rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-2)
}

.related-card-title {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--clr-navy);
  margin-bottom: var(--space-2)
}

.related-card-desc {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  line-height: 1.6
}

/* ── Responsive ──────────────────────────────────────────── */
@media(max-width:1024px) {
  .product-detail-grid {
    grid-template-columns: 1fr
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr)
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr)
  }
}

@media(max-width:640px) {
  .page-hero {
    height: 320px
  }

  .features-grid {
    grid-template-columns: 1fr
  }

  .related-grid {
    grid-template-columns: 1fr
  }

  .footer-grid {
    grid-template-columns: 1fr
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center
  }

  .types-grid {
    grid-template-columns: 1fr
  }
}

/* ── Animations ──────────────────────────────────────────── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(28px)
  }

  to {
    opacity: 1;
    transform: translateY(0)
  }
}

[data-animate] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0)
}