/* =========================================================
   Heatwave Pools & Spas — styles.css
   "Desert Oasis" — cool pool tones grounded in desert warmth.
   Signature: The Waterline (rippling dividers + caustic shimmer).
   ========================================================= */

/* ---------- Design tokens ---------- */
:root {
  --c-deep:   #06414f;
  --c-deep-2: #052e38;
  --c-aqua:   #16a6bc;
  --c-aqua-2: #43c6d6;
  --c-white:  #fbfcfd;
  --c-sand:   #f3e8d4;
  --c-sand-2: #faf3e6;
  --c-terra:  #dd7a5b;
  --c-sun:    #e9a23c;
  --c-ink:    #16252b;
  --c-ink-soft: #4a5b62;
  --c-line:   #e4e9ea;

  --grad-heat: linear-gradient(100deg, var(--c-sun) 0%, var(--c-terra) 34%, var(--c-aqua) 72%, var(--c-deep) 100%);
  --grad-deep: linear-gradient(160deg, var(--c-deep) 0%, var(--c-deep-2) 100%);

  --shadow-sm: 0 2px 10px rgba(6, 65, 79, .07);
  --shadow-md: 0 14px 40px rgba(6, 65, 79, .12);
  --shadow-lg: 0 30px 70px rgba(6, 65, 79, .22);

  --radius: 18px;
  --radius-sm: 12px;

  --container: min(1200px, 92vw);
  --header-h: 76px;

  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;

  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: clamp(1rem, .96rem + .2vw, 1.075rem);
  line-height: 1.65;
  color: var(--c-ink);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
ul, ol { list-style: none; padding: 0; }
input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--c-aqua); outline-offset: 3px; border-radius: 4px; }

.container { width: var(--container); margin-inline: auto; }

.skip-link {
  position: fixed; top: -100px; left: 16px; z-index: 1000;
  background: var(--c-deep); color: #fff; padding: 10px 16px; border-radius: 0 0 10px 10px;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 0; }

/* ---------- Type scale ---------- */
.eyebrow {
  font-size: .8rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--c-aqua); margin-bottom: .9rem;
}
.eyebrow--light { color: var(--c-aqua-2); }

.section__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-optical-sizing: auto;
  line-height: 1.04;
  letter-spacing: -.015em;
  font-size: clamp(1.9rem, 1.3rem + 2.7vw, 3.2rem);
  color: var(--c-deep);
}
.section--deep .section__title,
.section--deep .eyebrow { color: #fff; }
.section--deep .section__title { color: #fff; }

.section__lead {
  margin-top: 1rem; max-width: 54ch; color: var(--c-ink-soft);
  font-size: clamp(1.02rem, .98rem + .3vw, 1.18rem);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-weight: 700; letter-spacing: .01em;
  padding: .85em 1.5em; border-radius: 100px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
  will-change: transform;
}
.btn--sm { padding: .6em 1.15em; font-size: .92rem; }
.btn--lg { padding: 1em 1.8em; font-size: 1.05rem; }
.btn--block { width: 100%; }
.btn--primary { background: var(--c-aqua); color: #fff; box-shadow: 0 8px 22px rgba(22,166,188,.35); }
.btn--primary:hover { background: var(--c-deep); transform: translateY(-2px); box-shadow: 0 14px 30px rgba(6,65,79,.3); }
.btn--ghost { color: #fff; border: 1.5px solid rgba(255,255,255,.6); backdrop-filter: blur(4px); }
.btn--ghost:hover { background: rgba(255,255,255,.14); border-color: #fff; transform: translateY(-2px); }
.btn--light { background: #fff; color: var(--c-deep); }
.btn--light:hover { background: var(--c-sand); transform: translateY(-2px); }

/* ---------- Wordmark / logo ---------- */
.wordmark { display: inline-flex; align-items: center; }
.wordmark__img { display: block; width: auto; max-width: 100%; height: clamp(38px, 1.2vw + 28px, 46px); }

/* Header: logo is white over the dark hero, then flips to its true black
   once the header goes light on scroll (mirrors the nav-link treatment). */
.site-header .wordmark__img {
  filter: brightness(0) invert(1);
  transition: filter .3s var(--ease);
}
.site-header.is-scrolled .wordmark__img { filter: none; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center;
  transition: background .35s var(--ease), box-shadow .35s var(--ease), backdrop-filter .35s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(251,252,253,.9);
  backdrop-filter: saturate(140%) blur(12px);
  box-shadow: 0 1px 0 var(--c-line), var(--shadow-sm);
}
.site-header__inner { display: flex; align-items: center; gap: 1.5rem; width: var(--container); }
.primary-nav { display: flex; gap: 1.6rem; margin-left: auto; }
.primary-nav a {
  font-weight: 600; font-size: .98rem; color: #fff; position: relative; padding: .3em 0;
  text-shadow: 0 1px 12px rgba(0,0,0,.4);
  transition: color .2s var(--ease);
}
.primary-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0; background: var(--c-aqua);
  transition: width .25s var(--ease);
}
.primary-nav a:hover::after { width: 100%; }
.site-header.is-scrolled .primary-nav a { color: var(--c-ink); text-shadow: none; }

.site-header__actions { display: flex; align-items: center; gap: 1rem; }
.call-link {
  display: inline-flex; align-items: center; gap: .5em; font-weight: 700; color: #fff;
  text-shadow: 0 1px 12px rgba(0,0,0,.4); white-space: nowrap;
}
.call-link .icon { width: 18px; height: 18px; fill: var(--c-aqua-2); }
.site-header.is-scrolled .call-link { color: var(--c-ink); text-shadow: none; }
.site-header.is-scrolled .call-link .icon { fill: var(--c-aqua); }

/* hamburger */
.nav-toggle { display: none; width: 44px; height: 44px; flex-direction: column; justify-content: center; gap: 5px; margin-left: auto; }
.nav-toggle__bar { display: block; height: 2.5px; width: 24px; margin-inline: auto; background: #fff; border-radius: 2px; transition: transform .3s var(--ease), opacity .2s var(--ease), background .3s var(--ease); }
.site-header.is-scrolled .nav-toggle__bar { background: var(--c-ink); }
body.nav-open .nav-toggle__bar { background: #fff; }
body.nav-open .nav-toggle__bar:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
body.nav-open .nav-toggle__bar:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle__bar:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Mobile overlay ---------- */
.nav-overlay {
  position: fixed; inset: 0; z-index: 90;
  background: var(--grad-deep);
  display: flex; flex-direction: column; justify-content: center; gap: 2.5rem;
  padding: var(--header-h) 8vw 8vh;
  opacity: 0; pointer-events: none; transform: translateY(-8px);
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}
.nav-overlay.is-open { opacity: 1; pointer-events: auto; transform: none; }
.nav-overlay__menu { display: flex; flex-direction: column; gap: 1.2rem; }
.nav-overlay__menu a {
  font-family: var(--font-display); font-size: clamp(2rem, 1.4rem + 4vw, 3rem); font-weight: 600; color: #fff;
}
.nav-overlay__menu a:hover { color: var(--c-aqua-2); }
.nav-overlay__foot { display: flex; flex-direction: column; gap: 1rem; }
.call-link--lg { font-size: 1.15rem; color: #fff; text-shadow: none; }

/* =========================================================
   HERO
   ========================================================= */
.hero { position: relative; min-height: 100svh; display: flex; align-items: flex-end; padding-bottom: clamp(4rem, 10vh, 8rem); isolation: isolate; overflow: hidden; }
.hero__media { position: absolute; inset: 0; z-index: -2; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero__scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(6,46,56,.55) 0%, rgba(6,46,56,.05) 30%, rgba(6,46,56,.15) 60%, rgba(5,46,56,.85) 100%),
    linear-gradient(75deg, rgba(6,46,56,.7) 0%, rgba(6,46,56,0) 55%);
}
.hero__caustics {
  position: absolute; inset: -20%; z-index: -1; pointer-events: none;
  background: url("../assets/images/texture-water.jpg") center/cover;
  mix-blend-mode: soft-light; opacity: .35;
  animation: caustic-drift 26s ease-in-out infinite alternate;
}
@keyframes caustic-drift {
  0%   { transform: scale(1.05) translate3d(0,0,0); }
  100% { transform: scale(1.18) translate3d(-3%, -2%, 0); }
}
.hero__inner { position: relative; color: #fff; max-width: 760px; }
.hero__title {
  font-family: var(--font-display); font-weight: 600; font-optical-sizing: auto;
  font-size: clamp(2.6rem, 1.5rem + 6vw, 5.4rem); line-height: .98; letter-spacing: -.02em;
  margin: .2em 0 .35em; text-shadow: 0 4px 30px rgba(0,0,0,.35);
}
.hero__sub { font-size: clamp(1.05rem, .98rem + .55vw, 1.3rem); max-width: 50ch; color: rgba(255,255,255,.92); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; }
.hero__trust { display: flex; flex-wrap: wrap; gap: .6rem 1.4rem; margin-top: 2.4rem; }
.hero__trust li { position: relative; font-size: .92rem; font-weight: 600; color: rgba(255,255,255,.92); padding-left: 1.3rem; }
.hero__trust li::before { content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 8px; height: 8px; border-radius: 50%; background: var(--c-aqua-2); box-shadow: 0 0 12px var(--c-aqua-2); }

/* =========================================================
   THE WATERLINE (signature divider)
   ========================================================= */
.waterline { position: absolute; left: 0; right: 0; bottom: -1px; line-height: 0; pointer-events: none; }
/* Static and exactly full-width: no transform or oversizing, so no edge can ever be exposed
   in any browser. (An earlier drift animation relied on an over-wide SVG, which Firefox
   renders at 100% width, leaving a margin-sized gap on the right.) */
.waterline svg { display: block; width: 100%; height: clamp(48px, 7vw, 110px); }
.waterline--hero path { fill: var(--c-white); }
.waterline--sand path { fill: var(--c-sand); }

/* =========================================================
   SECTION SHELL
   ========================================================= */
.section { position: relative; padding-block: clamp(4rem, 3rem + 6vw, 8rem); }
.services { padding-bottom: clamp(5rem, 4rem + 7vw, 9rem); }
.section--sand { background: var(--c-sand); }
.section--deep { background: var(--grad-deep); color: rgba(255,255,255,.85); }
.section__head { max-width: 60ch; margin-bottom: clamp(2.2rem, 1.5rem + 2vw, 3.5rem); }
.section__head--center { margin-inline: auto; text-align: center; }

/* =========================================================
   SERVICES
   ========================================================= */
.services__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: clamp(1rem, .6rem + 1.4vw, 1.6rem); }
.card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: clamp(1.4rem, 1rem + 1vw, 2rem);
  box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.card__icon {
  display: inline-flex; align-items: center; justify-content: center; width: 56px; height: 56px;
  border-radius: 16px; background: linear-gradient(150deg, rgba(22,166,188,.14), rgba(221,122,91,.14));
  margin-bottom: 1.1rem;
}
.card__icon svg { width: 28px; height: 28px; fill: none; stroke: var(--c-deep); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.card:hover .card__icon svg { stroke: var(--c-aqua); }
.card__title { font-family: var(--font-display); font-weight: 600; font-size: 1.3rem; color: var(--c-deep); margin-bottom: .5rem; line-height: 1.15; }
.card__text { color: var(--c-ink-soft); font-size: .98rem; }

/* =========================================================
   ABOUT
   ========================================================= */
.about__grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(2rem, 1rem + 4vw, 5rem); align-items: center; }
.about__media { position: relative; }
.about__media img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow-md); }
.about__badge {
  position: absolute; left: -14px; bottom: 26px;
  background: #fff; color: var(--c-deep); font-family: var(--font-display); font-weight: 600;
  font-size: 1.02rem; padding: .8rem 1.2rem; border-radius: 14px; box-shadow: var(--shadow-md);
  border-left: 4px solid var(--c-terra);
}
.about__lead { margin-top: 1.2rem; color: var(--c-ink-soft); font-size: clamp(1.02rem, .98rem + .3vw, 1.15rem); }
.about__points { margin-top: 1.8rem; display: grid; gap: 1.1rem; }
.about__points li { display: grid; gap: .15rem; padding-left: 1.6rem; position: relative; }
.about__points li::before {
  content: ""; position: absolute; left: 0; top: .35rem; width: 12px; height: 12px; border-radius: 50%;
  background: var(--grad-heat);
}
.about__points strong { color: var(--c-deep); font-size: 1.05rem; }
.about__points span { color: var(--c-ink-soft); font-size: .96rem; }

/* =========================================================
   PROCESS
   ========================================================= */
.process__steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1.2rem, .5rem + 2vw, 2.4rem); counter-reset: step; }
.step { position: relative; padding-top: 1.6rem; }
.step::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--c-aqua), transparent); }
.step__num { font-family: var(--font-display); font-size: 2.6rem; font-weight: 500; color: var(--c-aqua-2); display: block; line-height: 1; margin-bottom: .6rem; opacity: .9; }
.step__title { font-family: var(--font-display); font-weight: 600; font-size: 1.35rem; color: #fff; margin-bottom: .4rem; }
.step__text { color: rgba(255,255,255,.78); font-size: .98rem; }

/* =========================================================
   GALLERY
   ========================================================= */
.gallery__grid {
  width: var(--container); margin: clamp(1.5rem, 1rem + 2vw, 2.5rem) auto 0;
  display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: 220px; gap: 14px;
}
.gallery__item { position: relative; overflow: hidden; border-radius: var(--radius-sm); background: var(--c-deep); }
.gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease), opacity .3s var(--ease); }
.gallery__item::after {
  content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(6,46,56,.45));
  opacity: 0; transition: opacity .35s var(--ease);
}
.gallery__item:hover img { transform: scale(1.06); }
.gallery__item:hover::after { opacity: 1; }
.gallery__item--tall { grid-row: span 2; }
.gallery__item--wide { grid-column: span 2; }

/* =========================================================
   CTA BAND
   ========================================================= */
.cta-band { position: relative; padding-block: clamp(4.5rem, 3rem + 7vw, 8rem); color: #fff; text-align: center; isolation: isolate; overflow: hidden; }
.cta-band__media { position: absolute; inset: 0; z-index: -1; }
.cta-band__media img { width: 100%; height: 100%; object-fit: cover; }
.cta-band__scrim { position: absolute; inset: 0; background: linear-gradient(160deg, rgba(6,46,56,.78), rgba(221,122,91,.45) 130%), rgba(6,46,56,.35); }
.cta-band__inner { max-width: 640px; }
.cta-band__title { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.9rem, 1.3rem + 2.6vw, 3.1rem); line-height: 1.05; }
.cta-band__text { margin: 1rem auto 0; max-width: 46ch; color: rgba(255,255,255,.9); font-size: 1.1rem; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; margin-top: 2rem; }

/* =========================================================
   CONTACT
   ========================================================= */
.contact__grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(2rem, 1rem + 4vw, 4.5rem); align-items: start; }
.contact__lead { margin-top: 1rem; color: var(--c-ink-soft); max-width: 42ch; }
.contact__info { margin-top: 2rem; display: grid; gap: 1.3rem; }
.contact__info li { display: grid; gap: .15rem; }
.contact__label { font-size: .76rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--c-aqua); }
.contact__value { font-weight: 600; color: var(--c-ink); }
.contact__value--lg { font-family: var(--font-display); font-size: 1.6rem; color: var(--c-deep); }
.contact__link { color: var(--c-deep); font-weight: 700; border-bottom: 2px solid var(--c-terra); width: max-content; padding-bottom: 1px; }
.contact__link:hover { color: var(--c-aqua); }

.contact__form-wrap { background: #fff; border-radius: var(--radius); padding: clamp(1.4rem, 1rem + 1.5vw, 2.4rem); box-shadow: var(--shadow-md); border: 1px solid var(--c-line); }
.quote-form { display: grid; gap: 1.1rem; }
.field { display: grid; gap: .4rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field label { font-size: .85rem; font-weight: 700; color: var(--c-deep); }
.field label span { color: var(--c-terra); }
.field input, .field select, .field textarea {
  width: 100%; padding: .8em .9em; border: 1.5px solid var(--c-line); border-radius: 12px; background: var(--c-sand-2);
  transition: border-color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--c-aqua); background: #fff; box-shadow: 0 0 0 4px rgba(22,166,188,.14); }
.field input:user-invalid, .field input[aria-invalid="true"] { border-color: var(--c-terra); }
.field textarea { resize: vertical; min-height: 110px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-fineprint { font-size: .82rem; color: var(--c-ink-soft); text-align: center; }
.form-status { padding: .8em 1em; border-radius: 12px; font-weight: 600; font-size: .95rem; }
.form-status[data-kind="ok"] { background: rgba(22,166,188,.12); color: var(--c-deep); }
.form-status[data-kind="err"] { background: rgba(221,122,91,.14); color: #a8482e; }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer { background: var(--c-deep-2); color: rgba(255,255,255,.75); padding-top: clamp(3rem, 2rem + 4vw, 5rem); }
.site-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.5rem; }
.wordmark--footer .wordmark__img { height: clamp(50px, 4vw + 18px, 62px); filter: brightness(0) invert(1); }
.site-footer__tag { margin-top: 1rem; max-width: 36ch; font-size: .96rem; }
.site-footer__nav, .site-footer__contact { display: grid; gap: .7rem; align-content: start; }
.site-footer__nav a:hover, .site-footer__contact a:hover { color: var(--c-aqua-2); }
.site-footer__contact span { font-size: .95rem; }
.site-footer__base {
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center;
  padding-block: 1.5rem; border-top: 1px solid rgba(255,255,255,.12); font-size: .88rem;
}
.site-footer__top:hover { color: var(--c-aqua-2); }

/* =========================================================
   LIGHTBOX
   ========================================================= */
.lightbox { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; }
.lightbox[hidden] { display: none; }
.lightbox__backdrop { position: absolute; inset: 0; background: rgba(5,30,37,.92); backdrop-filter: blur(4px); }
.lightbox__stage { position: relative; z-index: 1; width: min(92vw, 1100px); display: grid; place-items: center; }
.lightbox__img { max-width: 92vw; max-height: 82vh; border-radius: 12px; box-shadow: var(--shadow-lg); }
.lightbox__btn { position: absolute; z-index: 2; color: #fff; width: 52px; height: 52px; border-radius: 50%; background: rgba(255,255,255,.12); display: grid; place-items: center; font-size: 1.8rem; line-height: 1; transition: background .2s var(--ease), transform .2s var(--ease); }
.lightbox__btn:hover { background: rgba(255,255,255,.26); transform: scale(1.06); }
.lightbox__close { top: -64px; right: 0; }
.lightbox__prev { left: -68px; }
.lightbox__next { right: -68px; }

/* =========================================================
   SCROLL REVEAL
   ========================================================= */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* anchor offset for fixed header */
:where(section[id], #top) { scroll-margin-top: var(--header-h); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 980px) {
  .about__grid { grid-template-columns: 1fr; }
  .about__media { max-width: 460px; }
  .process__steps { grid-template-columns: repeat(2, 1fr); row-gap: 2rem; }
  .contact__grid { grid-template-columns: 1fr; }
  .gallery__grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 200px; }
  .gallery__item--wide { grid-column: span 2; }
}

@media (max-width: 880px) {
  .primary-nav, .site-header__actions { display: none; }
  .nav-toggle { display: flex; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
  .site-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  :root { --header-h: 66px; }
  .hero { min-height: 100svh; }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn { width: 100%; }
  .services__grid { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .gallery__grid { grid-template-columns: 1fr; grid-auto-rows: 240px; }
  .gallery__item--tall { grid-row: span 1; }
  .gallery__item--wide { grid-column: span 1; }
  .about__badge { left: 0; }
  .lightbox__prev { left: 6px; }
  .lightbox__next { right: 6px; }
  .lightbox__close { top: 8px; right: 8px; background: rgba(0,0,0,.4); }
  .site-footer__grid { grid-template-columns: 1fr; gap: 1.8rem; }
}

@media (max-width: 360px) {
  .process__steps { grid-template-columns: 1fr; }
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  .hero__caustics { animation: none; }
}