/* =====================================================
   Jaguar Heating & Air — styles.css
   Mobile-first. See CLAUDE.md for brand + layout rules.
   ===================================================== */

/* ---------- Tokens ---------- */
:root {
  --color-black: #0A0A0A;
  --color-gold: #E8A93C;
  --color-gold-dark: #c8902f;
  --color-heat: #D94B2B;
  --color-heat-dark: #b53e23;
  --color-cool: #7BB8D9;
  --color-cool-dark: #5a9bbe;
  --color-off-white: #FAFAFA;
  --color-ink: #1a1a1a;
  --color-ink-soft: #4a4a4a;
  --color-ink-mute: #6b6b6b;
  --color-line: #e6e6e6;
  --color-line-dark: rgba(255, 255, 255, 0.12);

  --font-display: 'Anton', 'Impact', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --max-w: 1200px;
  --gutter: clamp(1rem, 4vw, 2rem);
  --radius: 12px;
  --radius-sm: 8px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06), 0 2px 6px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.14), 0 24px 64px rgba(0, 0, 0, 0.08);

  --header-h: 116px;
  --header-h-scrolled: 92px;
  --logo-h: 88px;
  --logo-h-scrolled: 64px;
  --mobile-cta-h: 64px;
}

@media (min-width: 768px) {
  :root {
    --header-h: 148px;
    --header-h-scrolled: 116px;
    --logo-h: 120px;
    --logo-h-scrolled: 88px;
  }
}

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--color-ink);
  background: var(--color-off-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-bottom: var(--mobile-cta-h); /* room for mobile CTA bar */
}

@media (min-width: 768px) {
  body { padding-bottom: 0; }
}

img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: 0; background: none; padding: 0; color: inherit; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 400; line-height: 1.05; letter-spacing: 0.01em; text-transform: uppercase; }

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.icon { width: 1em; height: 1em; flex-shrink: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: transform 0.12s ease, background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
  border: 2px solid transparent;
  cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-gold);
  color: var(--color-black);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background: var(--color-gold-dark); box-shadow: var(--shadow-md); }

.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
}
.btn--ghost:hover { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.7); }

.btn--lg {
  padding: 1rem 1.5rem;
  font-size: 1rem;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-black);
  color: #fff;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}
.site-header.scrolled {
  border-bottom-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.5);
}
.site-header.scrolled .site-header__inner { min-height: var(--header-h-scrolled); }
.site-header.scrolled .site-header__logo  { height: var(--logo-h-scrolled); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
  transition: min-height 0.2s ease;
}

.site-header__brand { display: flex; align-items: center; }
.site-header__logo {
  height: var(--logo-h);
  width: auto;
  transition: height 0.2s ease;
}

.site-nav { display: none; }
.site-nav__list {
  display: flex;
  gap: 1.75rem;
  font-size: 0.95rem;
  font-weight: 500;
}
.site-nav__list a {
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.15s ease;
  position: relative;
  padding: 0.25rem 0;
}
.site-nav__list a:hover { color: var(--color-gold); }
.site-nav__list a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 2px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}
.site-nav__list a:hover::after { transform: scaleX(1); }

.site-header__cta { display: flex; align-items: center; gap: 0.5rem; }

.header-phone {
  display: none;
  align-items: center;
  gap: 0.45rem;
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-gold);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease;
}
.header-phone:hover { color: var(--color-gold-dark); }
.header-phone .icon { width: 1.05em; height: 1.05em; color: var(--color-gold); }

.header-book { display: none; }

@media (min-width: 768px) {
  .site-nav { display: block; }
  .header-phone { display: inline-flex; }
  .header-book { display: inline-flex; }
}

/* Mobile nav toggle */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 768px) {
  .nav-toggle { display: none; }
}

/* Mobile menu open state */
@media (max-width: 767px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--color-black);
    border-bottom: 1px solid var(--color-line-dark);
    box-shadow: var(--shadow-md);
    padding: 1rem var(--gutter) 1.5rem;
  }
  .site-nav.is-open { display: block; }
  .site-nav__list {
    flex-direction: column;
    gap: 0.25rem;
    font-size: 1.05rem;
  }
  .site-nav__list a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-line-dark);
  }
  .site-nav__list a::after { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--color-black);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  will-change: transform;
}
.hero__glow--heat {
  top: -10%;
  left: -10%;
  width: 50vw;
  height: 50vw;
  max-width: 700px;
  max-height: 700px;
  background: var(--color-heat);
}
.hero__glow--cool {
  bottom: -15%;
  right: -10%;
  width: 50vw;
  height: 50vw;
  max-width: 700px;
  max-height: 700px;
  background: var(--color-cool);
  opacity: 0.35;
}
.hero__glow--gold {
  top: 30%;
  left: 30%;
  width: 35vw;
  height: 35vw;
  max-width: 500px;
  max-height: 500px;
  background: var(--color-gold);
  opacity: 0.18;
  transform: translate(-50%, -30%);
}

.hero::before {
  /* subtle grid texture */
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
  padding-top: clamp(3rem, 8vw, 5rem);
  padding-bottom: clamp(3rem, 8vw, 5rem);
}

@media (min-width: 960px) {
  .hero__inner {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto 1fr;
    row-gap: 2.5rem;
    column-gap: 4rem;
    padding-top: clamp(4rem, 10vw, 7rem);
    padding-bottom: clamp(4rem, 10vw, 7rem);
  }
  .hero__content { grid-column: 2; grid-row: 1; }
  .hero__photo   { grid-column: 1; grid-row: 1 / span 2; }
  .hero__plans   { grid-column: 2; grid-row: 2; }
}

.hero__eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.hero__title {
  font-size: clamp(2.75rem, 7vw, 5rem);
  line-height: 0.95;
  margin-bottom: 1.25rem;
  letter-spacing: 0.005em;
}
.hero__title-accent {
  color: var(--color-gold);
  display: inline-block;
}

.hero__lede {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: rgba(255, 255, 255, 0.82);
  max-width: 38ch;
  margin-bottom: 2rem;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}
.hero__trust li {
  position: relative;
  padding-left: 1.1rem;
}
.hero__trust li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
  transform: translateY(-50%);
}

/* Photo slot */
.hero__photo {
  position: relative;
  aspect-ratio: 4 / 5;
  max-width: 480px;
  margin: 0 auto;
  width: 100%;
}
.hero__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
}
@media (min-width: 960px) {
  .hero__photo {
    aspect-ratio: auto;
    max-width: none;
    margin: 0;
    align-self: stretch;
    min-height: 100%;
  }
}

/* ---------- Hero Maintenance Plans ---------- */
.hero__plans {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.hero__plans-title {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.plan-card {
  position: relative;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 1.5rem;
  color: #fff;
  display: flex;
  flex-direction: column;
}
.plan-card--featured {
  background: rgba(232, 169, 60, 0.07);
  border-color: var(--color-gold);
  box-shadow: 0 0 0 1px var(--color-gold), var(--shadow-md);
}
.plan-card__badge {
  position: absolute;
  top: -0.6rem;
  right: 1.25rem;
  background: var(--color-gold);
  color: var(--color-black);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
}
.plan-card__head { margin-bottom: 0.75rem; }
.plan-card__title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.01em;
  margin-bottom: 0.2rem;
}
.plan-card__tagline {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}
.plan-card__price {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
  margin-bottom: 1.1rem;
}
.plan-card__price-amount {
  font-family: var(--font-display);
  font-size: 2.75rem;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--color-gold);
}
.plan-card__price-suffix {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}
.plan-card__features {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 1.5rem;
}
.plan-card__features li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  line-height: 1.4;
}
.plan-card__features svg {
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  color: var(--color-gold);
  margin-top: 0.2rem;
}
.plan-card__cta {
  margin-top: auto;
  align-self: stretch;
  justify-content: center;
}

/* ---------- Sections ---------- */
.section {
  padding-block: clamp(3.5rem, 8vw, 6rem);
}
.section--light {
  background: var(--color-off-white);
  color: var(--color-ink);
}
.section--dark {
  background: var(--color-black);
  color: #fff;
}

.section__head {
  text-align: center;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.section__eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-heat);
  margin-bottom: 0.75rem;
}
.section--dark .section__eyebrow { color: var(--color-gold); }
.section__title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  margin-bottom: 1rem;
  letter-spacing: 0.01em;
}
.section__lede {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
  max-width: 56ch;
  margin: 0 auto;
}
.section__lede--light { color: rgba(255, 255, 255, 0.75); }

/* ---------- Cards ---------- */
.cards {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}
.cards--3 {
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .cards--3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .cards--3 { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  position: relative;
  overflow: hidden;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--color-gold);
}
.card--heat::before { background: var(--color-heat); }
.card--cool::before { background: var(--color-cool); }
.card--air::before { background: linear-gradient(90deg, var(--color-heat), var(--color-cool)); }

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  background: rgba(232, 169, 60, 0.12);
  color: var(--color-gold);
}
.card__icon svg { width: 28px; height: 28px; }
.card--heat .card__icon { background: rgba(217, 75, 43, 0.12); color: var(--color-heat); }
.card--cool .card__icon { background: rgba(123, 184, 217, 0.18); color: var(--color-cool-dark); }

.card__title { font-size: 1.6rem; margin-bottom: 0.75rem; }
.card__body { color: var(--color-ink-soft); margin-bottom: 1.5rem; }

.card__cta {
  margin-top: auto;
  font-weight: 600;
  color: var(--color-black);
  border-bottom: 2px solid var(--color-gold);
  align-self: flex-start;
  padding-bottom: 2px;
  transition: gap 0.18s ease, color 0.18s ease;
}
.card__cta:hover { color: var(--color-gold-dark); }

/* ---------- Trust ---------- */
.trust {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 640px) { .trust { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .trust { grid-template-columns: repeat(4, 1fr); } }

.trust__item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-line-dark);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  transition: transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}
.trust__item:hover {
  transform: translateY(-3px);
  border-color: rgba(232, 169, 60, 0.5);
  background: rgba(255, 255, 255, 0.06);
}
.trust__icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  background: rgba(232, 169, 60, 0.15);
  color: var(--color-gold);
}
.trust__icon svg { width: 24px; height: 24px; }
.trust__title { font-size: 1.3rem; margin-bottom: 0.5rem; }
.trust__body { color: rgba(255, 255, 255, 0.7); font-size: 0.95rem; line-height: 1.55; }

/* ---------- Reviews ---------- */
.review {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}
.review__stars { display: flex; gap: 2px; color: var(--color-gold); }
.review__stars svg { width: 18px; height: 18px; }
.review__quote {
  font-size: 1.05rem;
  color: var(--color-ink);
  line-height: 1.6;
  flex: 1;
  font-style: normal;
}
.review__quote::before { content: '\201C'; color: var(--color-gold); font-size: 1.5em; line-height: 0; vertical-align: -0.15em; margin-right: 0.1em; }
.review__quote::after { content: '\201D'; color: var(--color-gold); font-size: 1.5em; line-height: 0; vertical-align: -0.4em; margin-left: 0.05em; }
.review__attr {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  border-top: 1px solid var(--color-line);
  padding-top: 1rem;
}
.review__name { font-weight: 700; color: var(--color-black); }
.review__loc { font-size: 0.85rem; color: var(--color-ink-mute); }

/* ---------- Service Area ---------- */
.section--area .section__title { text-align: left; }
.area {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
  align-items: center;
}
@media (min-width: 900px) {
  .area { grid-template-columns: 1.05fr 1fr; gap: 4rem; }
}
.area__copy .section__eyebrow,
.area__copy .section__title,
.area__copy .section__lede {
  text-align: left;
  margin-left: 0;
  margin-right: 0;
}
.area__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.map-container {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  aspect-ratio: 4 / 3;
  border-radius: 8px;
  overflow: hidden;
}
.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* ---------- Book / Work Request Embed ---------- */
.book-embed {
  max-width: 720px;
  margin: 0 auto;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #050505;
  color: rgba(255, 255, 255, 0.7);
  padding-top: clamp(2.5rem, 6vw, 4rem);
  font-size: 0.95rem;
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 2.5rem;
}
@media (min-width: 640px) { .site-footer__inner { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .site-footer__inner { grid-template-columns: 1.5fr repeat(3, 1fr); gap: 3rem; } }

.site-footer__logo { height: 64px; width: auto; margin-bottom: 1rem; }
.site-footer__tagline { max-width: 32ch; color: rgba(255, 255, 255, 0.6); }
.site-footer__heading {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  margin-bottom: 1rem;
}
.site-footer__list { display: flex; flex-direction: column; gap: 0.5rem; }
.site-footer__list a { transition: color 0.15s ease; }
.site-footer__list a:hover { color: var(--color-gold); }

.site-footer__bar {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-block: 1.25rem;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
}
.site-footer__bar-inner {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  justify-content: space-between;
  align-items: flex-start;
}
@media (min-width: 640px) {
  .site-footer__bar-inner { flex-direction: row; align-items: center; }
}
.site-footer__legal { letter-spacing: 0.08em; text-transform: uppercase; }

/* ---------- Mobile sticky CTA ---------- */
.mobile-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.15);
  height: var(--mobile-cta-h);
}
.mobile-cta__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
}
.mobile-cta__btn .icon { width: 1.1em; height: 1.1em; }
.mobile-cta__btn--call {
  background: var(--color-heat);
  color: #fff;
}
.mobile-cta__btn--book {
  background: var(--color-gold);
  color: var(--color-black);
}

@media (min-width: 768px) {
  .mobile-cta { display: none; }
}

/* ---------- Focus styles ---------- */
:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}