/* ============================================================
   PNW Tool — Industrial-Modern Design System
   Palette: Graphite/Steel neutrals + Anodized-Red accent
   Fonts: Rubik (headings) + Nunito Sans (body)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@300;400;500;600;700&family=Rubik:wght@400;500;600;700&display=swap');

/* ---- Custom Properties ------------------------------------ */
:root {
  /* Core Colors */
  --color-graphite:      #1C2228;
  --color-graphite-mid:  #2E3840;
  --color-steel:         #3D4A56;
  --color-steel-mid:     #64748B;
  --color-slate:         #8A9BAD;
  --color-border:        #D0D5DC;
  --color-border-dark:   #3D4A56;

  /* Backgrounds */
  --bg-dark:             #1C2228;
  --bg-dark-card:        #2E3840;
  --bg-light:            #F4F5F7;
  --bg-white:            #FFFFFF;
  --bg-subtle:           #EAECEF;

  /* Accent — Anodized Red */
  --color-red:           #C0392B;
  --color-red-hover:     #A93226;
  --color-red-subtle:    #FDEDEB;

  /* Text */
  --text-primary:        #1C2228;
  --text-secondary:      #3D4A56;
  --text-muted:          #64748B;
  --text-inverse:        #F4F5F7;
  --text-inverse-muted:  #8A9BAD;

  /* Typography */
  --font-heading:        'Rubik', 'Segoe UI', Arial, sans-serif;
  --font-body:           'Nunito Sans', 'Segoe UI', Arial, sans-serif;

  /* Fluid Type Scale */
  --text-xs:    0.75rem;
  --text-sm:    0.875rem;
  --text-base:  1rem;
  --text-lg:    1.125rem;
  --text-xl:    1.25rem;
  --text-2xl:   1.5rem;
  --text-3xl:   1.875rem;
  --text-4xl:   2.25rem;
  --text-5xl:   3rem;
  --text-6xl:   3.75rem;

  /* Spacing */
  --space-xs:   0.25rem;
  --space-sm:   0.5rem;
  --space-md:   1rem;
  --space-lg:   1.5rem;
  --space-xl:   2rem;
  --space-2xl:  3rem;
  --space-3xl:  4rem;
  --space-4xl:  6rem;

  /* Shadows */
  --shadow-sm:   0 1px 3px rgba(0,0,0,.10);
  --shadow-md:   0 4px 12px rgba(0,0,0,.12);
  --shadow-lg:   0 8px 24px rgba(0,0,0,.15);
  --shadow-card: 0 2px 8px rgba(28,34,40,.10);

  /* Borders & Radius */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-mid:    250ms ease;
  --transition-slow:   400ms ease;

  /* Z-index scale */
  --z-base:     10;
  --z-dropdown: 20;
  --z-sticky:   30;
  --z-overlay:  40;
  --z-modal:    50;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--text-primary);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: var(--color-red); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible {
  outline: 3px solid var(--color-red);
  outline-offset: 3px;
  border-radius: 2px;
}
ul, ol { list-style: none; }

/* ---- Skip Link ------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-red);
  color: #fff;
  padding: .5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: var(--z-modal);
  transition: top var(--transition-fast);
}
.skip-link:focus { top: var(--space-md); }

/* ---- Layout Helpers -------------------------------------- */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section { padding: var(--space-4xl) 0; }
.section--dark {
  background: var(--bg-dark);
  color: var(--text-inverse);
}
.section--light { background: var(--bg-light); }
.section--white { background: var(--bg-white); }

/* ---- Typography ------------------------------------------ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: inherit;
}
h1 { font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl)); font-weight: 700; }
h2 { font-size: clamp(var(--text-2xl), 3.5vw, var(--text-4xl)); }
h3 { font-size: clamp(var(--text-xl), 2.5vw, var(--text-2xl)); }
h4 { font-size: var(--text-xl); }

.section-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-red);
  display: block;
  margin-bottom: var(--space-sm);
}
.section-title { margin-bottom: var(--space-md); }
.section-intro {
  font-size: var(--text-lg);
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.7;
}
.section-header { margin-bottom: var(--space-3xl); }
.section-header--center { text-align: center; }
.section-header--center .section-intro { margin: 0 auto; }

/* ---- Buttons --------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: .75rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast), transform var(--transition-fast),
              box-shadow var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: 3px solid var(--color-red); outline-offset: 3px; }

.btn--primary {
  background: var(--color-red);
  color: #fff;
  border-color: var(--color-red);
}
.btn--primary:hover {
  background: var(--color-red-hover);
  border-color: var(--color-red-hover);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--text-inverse);
  border-color: rgba(255,255,255,.4);
}
.btn--outline:hover {
  border-color: rgba(255,255,255,.9);
  background: rgba(255,255,255,.08);
}

.btn--outline-dark {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--color-border);
}
.btn--outline-dark:hover {
  border-color: var(--color-steel);
  background: var(--bg-light);
}

.btn--lg { padding: .9rem 2rem; font-size: var(--text-lg); }
.btn--sm { padding: .5rem 1rem; font-size: var(--text-sm); }

/* ---- Navigation ------------------------------------------ */
.nav {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: rgba(28, 34, 40, 0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border-dark);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  height: 96px;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  flex-shrink: 0;
}
.nav__logo-img {
  height: 80px;
  width: auto;
}
.nav__logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.2;
  display: flex;
  flex-direction: column;
}
.nav__logo-line1 {
  font-size: var(--text-sm);
  color: var(--color-slate);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.nav__logo-line2 {
  font-size: var(--text-xl);
  color: var(--color-red);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}
.nav__link {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--text-inverse-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
  padding: .25rem 0;
  border-bottom: 2px solid transparent;
}
.nav__link:hover, .nav__link--active {
  color: var(--text-inverse);
  border-bottom-color: var(--color-red);
  text-decoration: none;
}
.nav__cta { margin-left: var(--space-sm); }

/* Mobile menu toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  z-index: var(--z-modal);
}
.nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-inverse);
  border-radius: 2px;
  transition: transform var(--transition-mid), opacity var(--transition-mid);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* ---- Hero ------------------------------------------------ */
.hero {
  background:
    linear-gradient(to bottom,
      rgba(8, 16, 10, 0.85) 0%,
      rgba(8, 16, 10, 0.78) 50%,
      rgba(8, 16, 10, 0.88) 100%),
    url("../img/forest-hero.jpg") center center / cover no-repeat;
  color: var(--text-inverse);
  padding: var(--space-4xl) 0;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(192,57,43,.08) 0%,
    transparent 60%,
    rgba(0,0,0,.15) 100%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}
.hero__label { margin-bottom: var(--space-lg); }
.hero__headline {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: var(--space-lg);
  color: var(--text-inverse);
}
.hero__headline em {
  font-style: normal;
  color: var(--color-red);
}
.hero__subhead {
  font-size: clamp(var(--text-base), 1.8vw, var(--text-lg));
  color: var(--text-inverse-muted);
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
  max-width: 520px;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}
.hero__trust {
  margin-top: var(--space-2xl);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}
.hero__trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--text-inverse-muted);
}
.hero__trust-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-red);
}
.hero__media {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}
.hero__img-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  width: 100%;
}
.hero__img-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-dark-card);
  aspect-ratio: 1;
}
.hero__img-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---- Problem/Solution Band ------------------------------- */
.ps-band {
  background: var(--color-red);
  color: #fff;
  padding: var(--space-2xl) 0;
}
.ps-band__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-xl);
  align-items: center;
  text-align: center;
}
.ps-band__col h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}
.ps-band__col p {
  font-size: var(--text-sm);
  opacity: .85;
  line-height: 1.6;
}
.ps-band__problem-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  opacity: .7;
  text-decoration: line-through;
  text-decoration-thickness: 2px;
}
.ps-band__problems {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
  font-size: var(--text-sm);
  line-height: 1.7;
}
.ps-band__problems li {
  padding: .25rem 0 .25rem 1.5rem;
  position: relative;
  opacity: .85;
}
.ps-band__problems li::before {
  content: '✕';
  position: absolute;
  left: 0;
  font-weight: 700;
  opacity: .6;
}
.ps-band__arrow {
  font-size: 2rem;
  opacity: .7;
}
.ps-band__col--solution h3 { color: #fff; }

/* ---- Product Grid ---------------------------------------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-xl);
}
.product-card {
  background: var(--bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition-mid), transform var(--transition-mid);
  cursor: pointer;
}
.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.product-card__img-wrap {
  background: var(--bg-light);
  aspect-ratio: 1;
  overflow: hidden;
  position: relative;
}
.product-card__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-lg);
  transition: transform var(--transition-slow);
}
.product-card:hover .product-card__img { transform: scale(1.04); }
.product-card__badge {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  padding: .25rem .625rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.product-card__badge--oos {
  background: #FEF3C7;
  color: #92400E;
  border: 1px solid #FCD34D;
}
.product-card__badge--in {
  background: #D1FAE5;
  color: #065F46;
  border: 1px solid #6EE7B7;
}
.product-card__body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
}
.product-card__sku {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}
.product-card__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}
.product-card__replaces {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}
.product-card__replaces strong { color: var(--text-secondary); }
.product-card__price {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}
.product-card__price span {
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--text-muted);
}
.product-card__actions { margin-top: auto; }
.product-card__btn {
  display: block;
  width: 100%;
  text-align: center;
  padding: .7rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--text-sm);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast);
  border: 2px solid var(--color-red);
  text-decoration: none;
}
.product-card__btn--buy {
  background: var(--color-red);
  color: #fff;
}
.product-card__btn--buy:hover {
  background: var(--color-red-hover);
  border-color: var(--color-red-hover);
  text-decoration: none;
}
.product-card__btn--oos {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--color-border);
  cursor: not-allowed;
}

/* ---- Why Aluminum ---------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-xl);
}
.feature-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}
.feature-card__icon {
  width: 44px;
  height: 44px;
  margin-bottom: var(--space-lg);
  color: var(--color-red);
}
.feature-card__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-inverse);
  margin-bottom: var(--space-sm);
}
.feature-card__text {
  font-size: var(--text-sm);
  color: var(--text-inverse-muted);
  line-height: 1.7;
}

/* ---- Compatibility Band ---------------------------------- */
.compat-band {
  background: var(--bg-light);
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.compat-band__label {
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}
.compat-band__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm) var(--space-xl);
}
.compat-band__item {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: .02em;
}

/* ---- Video Section --------------------------------------- */
.video-wrap {
  max-width: 800px;
  margin: 0 auto;
}
.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--bg-graphite);
}
.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ---- Shop Notices ---------------------------------------- */
.notices-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}
.notice-card {
  background: var(--bg-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-red);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-lg);
}
.notice-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: .06em;
  font-size: var(--text-sm);
}
.notice-card__text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}
.notice-card__text ol { list-style: decimal; padding-left: var(--space-lg); }
.notice-card__text ol li { margin-bottom: .25rem; }

/* ---- "Which Latch?" Guide -------------------------------- */
.latch-guide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}
.latch-type-card {
  background: var(--bg-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.latch-type-card:hover {
  border-color: var(--color-red);
  box-shadow: var(--shadow-md);
}
.latch-type-card__abbr {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-red);
  margin-bottom: var(--space-sm);
}
.latch-type-card__name {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}
.latch-type-card__detail {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.7;
}

/* ---- Product Info Tabs ----------------------------------- */
.tabs { margin-top: var(--space-2xl); }
.tabs__list {
  display: flex;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-xl);
  gap: 0;
  overflow-x: auto;
}
.tabs__btn {
  padding: .75rem 1.5rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.tabs__btn:hover { color: var(--text-primary); }
.tabs__btn[aria-selected="true"] {
  color: var(--color-red);
  border-bottom-color: var(--color-red);
}
.tabs__btn:focus-visible {
  outline: 3px solid var(--color-red);
  outline-offset: 2px;
  border-radius: 2px;
}
.tabs__panel { display: none; }
.tabs__panel[aria-hidden="false"] { display: block; }
.tabs__panel--prose {
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 800px;
}
.tabs__panel--prose p + p { margin-top: var(--space-md); }
.tabs__panel--prose strong { color: var(--text-primary); }

/* Downloads list */
.download-list { display: flex; flex-direction: column; gap: var(--space-md); }
.download-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.download-item:hover {
  background: var(--color-red-subtle);
  border-color: var(--color-red);
  text-decoration: none;
}
.download-item__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-red);
}
.download-item__label { flex: 1; }

/* ---- Prose (policy pages) -------------------------------- */
.prose {
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 760px;
}
.prose h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}
.prose h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}
.prose p { margin-bottom: var(--space-md); }
.prose ul, .prose ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-xl);
}
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { margin-bottom: var(--space-xs); }
.prose strong { color: var(--text-primary); font-weight: 700; }

/* ---- Page Hero (interior pages) ------------------------- */
.page-hero {
  background: var(--bg-dark);
  color: var(--text-inverse);
  padding: var(--space-3xl) 0;
  border-bottom: 2px solid var(--color-red);
}
.page-hero__label { margin-bottom: var(--space-md); }
.page-hero__title {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text-inverse);
}
.page-hero__sub {
  font-size: var(--text-lg);
  color: var(--text-inverse-muted);
  margin-top: var(--space-md);
  max-width: 600px;
  line-height: 1.7;
}

/* ---- Footer --------------------------------------------- */
.footer {
  background: var(--bg-dark);
  color: var(--text-inverse-muted);
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid var(--color-border-dark);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-2xl);
}
.footer__brand-name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-inverse);
  margin-bottom: var(--space-sm);
}
.footer__brand-desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}
.footer__col-title {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-inverse);
  margin-bottom: var(--space-md);
}
.footer__links { display: flex; flex-direction: column; gap: var(--space-sm); }
.footer__link {
  font-size: var(--text-sm);
  color: var(--text-inverse-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer__link:hover { color: var(--text-inverse); text-decoration: none; }
.footer__bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: var(--text-xs);
}
.footer__copy { color: var(--text-inverse-muted); }
.footer__legal {
  display: flex;
  gap: var(--space-lg);
}
.footer__legal a {
  color: var(--text-inverse-muted);
  text-decoration: none;
  font-size: var(--text-xs);
}
.footer__legal a:hover { color: var(--text-inverse); }

/* ---- Scroll-reveal ---------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---- Responsive ----------------------------------------- */
@media (max-width: 1024px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .hero__inner { gap: var(--space-2xl); }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .nav__links--open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--color-border-dark);
    padding: var(--space-lg);
    gap: var(--space-sm);
  }
  .nav__link { font-size: var(--text-base); }
  .nav__cta { width: 100%; }
  .nav__cta .btn { width: 100%; justify-content: center; }

  .hero__inner { grid-template-columns: 1fr; }
  .hero__media { display: none; }
  .hero { padding: var(--space-3xl) 0; }

  .ps-band__inner { grid-template-columns: 1fr; gap: var(--space-md); }
  .ps-band__arrow { transform: rotate(90deg); }

  .latch-guide { grid-template-columns: 1fr; }

  .footer__grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .footer__bottom { flex-direction: column; align-items: flex-start; }

  .section { padding: var(--space-3xl) 0; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { text-align: center; justify-content: center; }
  .product-grid { grid-template-columns: 1fr; }
}

/* ---- Utility classes ------------------------------------- */
.text-center { text-align: center; }
.text-red { color: var(--color-red); }
.mt-sm  { margin-top: var(--space-sm); }
.mt-md  { margin-top: var(--space-md); }
.mt-lg  { margin-top: var(--space-lg); }
.mt-xl  { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mb-sm  { margin-bottom: var(--space-sm); }
.mb-md  { margin-bottom: var(--space-md); }
.mb-lg  { margin-bottom: var(--space-lg); }
.mb-xl  { margin-bottom: var(--space-xl); }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}