/* =====================================================================
   Alethium Corp. — main stylesheet
   Mobile-first, fluid typography, themable via CSS custom properties.
   All colors / fonts / sizing come from _data/themes/<active>.json
   (resolved into :root vars in _includes/layouts/base.njk).

   Sections
   ──────────────────────────────────────────────────────────────────────
   01. Reset + base
   02. Typography (fluid)
   03. Layout helpers
   04. Skip link
   05. Header / sticky nav
   06. Hero
   07. Stats grid
   08. Cards + grids
   09. Status badges
   10. Page prose
   11. Tables
   12. Satellite detail
   13. Executive bio
   14. Contact form
   15. Footer
   16. Reveal animations + reduced motion
   ===================================================================== */


/* ── 01. Reset + base ─────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

::selection { background: var(--color-primary); color: #fff; }

/* Focus rings — visible for keyboard users, polite for everyone else */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}


/* ── 02. Typography (fluid) ───────────────────────────────────────── */

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 1.5em 0 0.6em;
  color: var(--color-text);
  font-weight: 700;
}

h1 { font-size: clamp(2rem,   3.5vw + 1.2rem, 3.25rem); letter-spacing: -0.025em; }
h2 { font-size: clamp(1.5rem, 2.2vw + 0.9rem, 2.25rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.2rem, 1.2vw + 0.85rem, 1.5rem); }
h4 { font-size: clamp(1.05rem, 0.6vw + 0.85rem, 1.2rem); }

p, ul, ol { margin: 0 0 1.1em; }

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s;
}
a:hover, a:focus { color: var(--color-primary-hover); }


/* ── 03. Layout helpers ───────────────────────────────────────────── */

.container {
  width: 100%;
  max-width: var(--layout-max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.main-content {
  padding-top: clamp(1.5rem, 4vw, 3rem);
  padding-bottom: clamp(2rem, 5vw, 4rem);
}

.section {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
}

.section--surface { background: var(--color-surface); }

.eyebrow {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin: 0 0 0.5rem;
}


/* ── 04. Skip link ────────────────────────────────────────────────── */

a.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
}
a.skip:focus {
  left: 1rem;
  top: 1rem;
  background: var(--color-accent);
  color: #000;
  padding: 0.6rem 1rem;
  border-radius: var(--radius);
  font-weight: 700;
  text-decoration: none;
}


/* ── 05. Header / sticky nav ──────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 21, 48, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  color: var(--color-header-text);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 0.85rem 1.25rem;
  gap: 1rem;
  max-width: var(--layout-max-width);
  margin: 0 auto;
}

.site-header__brand {
  color: var(--color-header-text);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.site-header__name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.site-header__tagline {
  font-size: 0.78rem;
  opacity: 0.78;
  max-width: 36ch;
  display: none;
}
@media (min-width: 720px) {
  .site-header__name { font-size: 1.35rem; }
  .site-header__tagline { display: block; }
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.1rem 0.4rem;
  align-items: center;
}
.site-nav__item { position: relative; }
.site-nav a {
  color: var(--color-header-text);
  text-decoration: none;
  padding: 0.55rem 0.7rem;
  display: inline-block;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
  min-height: 44px;
  display: flex;
  align-items: center;
}
.site-nav a:hover,
.site-nav a:focus {
  background: rgba(255,255,255,0.08);
  color: var(--color-header-text);
}
.site-nav a[aria-current="page"] {
  background: rgba(255,255,255,0.12);
  box-shadow: inset 0 -2px 0 var(--color-accent);
}

.site-nav__submenu {
  list-style: none;
  margin: 0;
  padding: 0.35rem;
  background: var(--color-header-bg);
  position: absolute;
  top: calc(100% + 0.25rem);
  left: 0;
  min-width: 240px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 12px 30px rgba(0,0,0,0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.15s, transform 0.15s, visibility 0.15s;
  z-index: 5;
}
.site-nav__submenu a { padding: 0.55rem 0.85rem; display: block; }
.site-nav__item--has-children:hover .site-nav__submenu,
.site-nav__item--has-children:focus-within .site-nav__submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius);
  padding: 0.55rem 0.7rem;
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-header-text);
  margin: 5px 0;
  transition: transform 0.2s, opacity 0.2s;
}
.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 (max-width: 880px) {
  .nav-toggle { display: block; }
  .site-nav {
    flex-basis: 100%;
    display: none;
  }
  .site-nav.is-open {
    display: block;
    animation: slideDown 0.2s ease-out;
  }
  .site-nav__list { flex-direction: column; gap: 0.25rem; align-items: stretch; }
  .site-nav a { padding: 0.8rem 0.9rem; }
  .site-nav__submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    padding-left: 1rem;
    background: transparent;
  }
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}


/* ── 06. Hero ─────────────────────────────────────────────────────── */

.hero {
  position: relative;
  isolation: isolate;
  color: #fff;
  /* Layered hero: dark gradient on top for text contrast + the Milky Way photo
     underneath. Phones get a 1200px mobile variant (~240KB); larger screens get
     the 1920px desktop variant (~500KB). image-set() prefers WebP and falls
     back to JPEG automatically — no JS needed. If the photo is missing the
     gradient alone still produces a polished deep-space look, so nothing
     breaks. */
  background-color: var(--color-hero-from);
  background-image:
    linear-gradient(
      170deg,
      rgba(7, 13, 27, 0.82) 0%,
      rgba(11, 61, 145, 0.55) 55%,
      rgba(7, 13, 27, 0.88) 100%
    ),
    url('/assets/img/hero-milkyway-mobile.jpg');
  background-image:
    linear-gradient(
      170deg,
      rgba(7, 13, 27, 0.82) 0%,
      rgba(11, 61, 145, 0.55) 55%,
      rgba(7, 13, 27, 0.88) 100%
    ),
    image-set(
      url('/assets/img/hero-milkyway-mobile.webp') type('image/webp'),
      url('/assets/img/hero-milkyway-mobile.jpg') type('image/jpeg')
    );
  background-size: cover;
  background-position: center 35%;
  background-repeat: no-repeat;
  overflow: hidden;
}

@media (min-width: 768px) {
  .hero {
    background-image:
      linear-gradient(
        170deg,
        rgba(7, 13, 27, 0.82) 0%,
        rgba(11, 61, 145, 0.55) 55%,
        rgba(7, 13, 27, 0.88) 100%
      ),
      url('/assets/img/hero-milkyway.jpg');
    background-image:
      linear-gradient(
        170deg,
        rgba(7, 13, 27, 0.82) 0%,
        rgba(11, 61, 145, 0.55) 55%,
        rgba(7, 13, 27, 0.88) 100%
      ),
      image-set(
        url('/assets/img/hero-milkyway.webp') type('image/webp'),
        url('/assets/img/hero-milkyway.jpg') type('image/jpeg')
      );
  }
}

.hero::after {
  /* Subtle vignette so the corners feel anchored and text always pops */
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 90% 70% at 50% 50%, transparent 40%, rgba(7,13,27,0.55) 100%);
  pointer-events: none;
  z-index: 0;
}

.hero__inner { position: relative; z-index: 1; }

.hero__inner {
  max-width: var(--layout-max-width);
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 6rem) 1.25rem clamp(2.5rem, 7vw, 5rem);
  display: grid;
  gap: 1.25rem;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  width: fit-content;
  backdrop-filter: blur(8px);
}
.hero__badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-accent);
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5.5vw + 1rem, 4.25rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin: 0;
  color: #fff;
  max-width: 22ch;
  font-weight: 700;
}
.hero__title em {
  color: var(--color-accent);
  font-style: normal;
}

.hero__lede {
  font-size: clamp(1.05rem, 1vw + 0.85rem, 1.3rem);
  line-height: 1.55;
  margin: 0;
  color: rgba(255,255,255,0.85);
  max-width: 56ch;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin-top: 0.5rem;
  color: rgba(255,255,255,0.7);
  font-size: 0.92rem;
}
.hero__meta strong { color: #fff; font-weight: 600; }
.hero__meta a { color: var(--color-accent); text-decoration: underline; text-decoration-thickness: 1.5px; }
.hero__meta a:hover { color: var(--color-accent-hover); }

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  border: 0;
  min-height: 44px;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}
.btn--primary {
  background: var(--color-accent);
  color: #0a1530;
  box-shadow: 0 6px 18px rgba(251,191,36,0.32);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  color: #0a1530;
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(251,191,36,0.42);
}
.btn--ghost {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.25);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.15);
  color: #fff;
  transform: translateY(-1px);
}


/* ── 07. Stats grid ───────────────────────────────────────────────── */

.stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: clamp(2rem, 4vw, 3.5rem) 0;
}
@media (min-width: 560px) { .stats { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px) { .stats { grid-template-columns: repeat(4, 1fr); } }

.stat {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.4rem;
  position: relative;
  overflow: hidden;
}
.stat::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
}
.stat__value {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 2.4vw + 1rem, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--color-text);
}
.stat__label {
  margin: 0.4rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.93rem;
  line-height: 1.4;
}


/* ── 08. Cards + grids ────────────────────────────────────────────── */

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}
@media (min-width: 560px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .card-grid { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  border-color: var(--color-border-strong);
}
.card h3 { margin: 0; font-size: 1.2rem; }
.card h3 a { color: var(--color-text); text-decoration: none; }
.card h3 a:hover { color: var(--color-primary); }
.card__meta {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  margin: 0;
}
.card__body { color: var(--color-text); margin: 0.3rem 0; flex: 1; font-size: 0.97rem; }
.card__cta {
  margin-top: auto;
  padding-top: 0.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
}
.card__cta::after {
  content: "→";
  transition: transform 0.15s;
}
.card__cta:hover { color: var(--color-primary-hover); }
.card__cta:hover::after { transform: translateX(3px); }

.card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}


/* ── 09. Status badges ────────────────────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
  border: 1px solid transparent;
}
.badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.badge--operational {
  background: rgba(22, 163, 74, 0.1);
  color: var(--color-success);
  border-color: rgba(22, 163, 74, 0.25);
}
.badge--decommissioned {
  background: var(--color-surface);
  color: var(--color-text-muted);
  border-color: var(--color-border-strong);
}
.badge--concluded {
  background: var(--color-surface);
  color: var(--color-text-muted);
  border-color: var(--color-border-strong);
}
.badge--developing {
  background: rgba(217, 119, 6, 0.1);
  color: var(--color-warning);
  border-color: rgba(217, 119, 6, 0.25);
}


/* ── 10. Page prose ───────────────────────────────────────────────── */

.page__title { margin-top: 0; }

.prose { max-width: 72ch; }
.prose ul, .prose ol { padding-left: 1.5rem; }
.prose li { margin-bottom: 0.35em; }
.prose strong { color: var(--color-text); }


/* ── 11. Tables ───────────────────────────────────────────────────── */

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.5em 0;
  background: var(--color-surface-elevated);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
th, td {
  text-align: left;
  vertical-align: top;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--color-border);
}
tr:last-child th, tr:last-child td { border-bottom: 0; }
th {
  background: var(--color-surface);
  font-weight: 600;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 0.95rem;
}
@media (max-width: 640px) {
  /* Horizontal scroll for wide tables on phones */
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
}


/* ── 12. Satellite detail ─────────────────────────────────────────── */

.satellite__header { margin-bottom: 1.5rem; }
.satellite__name { margin-top: 0; }
.satellite__subtitle {
  color: var(--color-text-muted);
  font-style: italic;
  margin: -0.3rem 0 1rem;
  font-size: 1.05rem;
}
.satellite__status {
  display: inline-flex;
  margin-bottom: 0.75rem;
}
.satellite__mission-link {
  margin: 0.5rem 0 0;
}
.satellite__mission-link a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.2rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  min-height: 44px;
  transition: background 0.15s, transform 0.15s;
}
.satellite__mission-link a:hover {
  background: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-1px);
}

.satellite__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.4rem;
  margin: 1.5rem 0;
}
@media (min-width: 520px) {
  .satellite__facts {
    grid-template-columns: max-content 1fr;
    gap: 0.55rem 1.5rem;
  }
}
.satellite__facts dt {
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.satellite__facts dd { margin: 0; color: var(--color-text); }

.satellite__role {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  border-left: 4px solid var(--color-accent);
  background: var(--color-surface);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.satellite__role h2 { margin-top: 0; }


/* ── 13. Executive bio ────────────────────────────────────────────── */

.executive { max-width: 72ch; }
.executive__header { margin-bottom: 1.25rem; }
.executive__name { margin-top: 0; }
.executive__role {
  color: var(--color-text-muted);
  margin: -0.4rem 0 0;
  font-size: 1.05rem;
  font-style: italic;
}

.exec-list section.executive {
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  max-width: none;
}
.exec-list section.executive:last-child { border-bottom: 0; }
.exec-list hr { display: none; }


/* ── 14. Contact form ─────────────────────────────────────────────── */

form.contact {
  display: grid;
  gap: 1.1rem;
  max-width: 640px;
  background: var(--color-surface);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
form.contact label {
  display: block;
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.92rem;
}
form.contact input,
form.contact textarea,
form.contact select {
  width: 100%;
  margin-top: 0.4rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
  font: inherit;
  min-height: 44px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
form.contact input:focus,
form.contact textarea:focus,
form.contact select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
  outline: 0;
}
form.contact button {
  justify-self: start;
  background: var(--color-primary);
  color: #fff;
  border: 0;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
  transition: background 0.15s, transform 0.15s;
}
form.contact button:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}


/* ── 15. Footer ───────────────────────────────────────────────────── */

.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: clamp(2rem, 5vw, 3.5rem) 0 1.5rem;
  margin-top: clamp(3rem, 6vw, 5rem);
  font-size: 0.94rem;
  border-top: 4px solid var(--color-accent);
}
.site-footer__grid {
  max-width: var(--layout-max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 720px) {
  .site-footer__grid { grid-template-columns: 2fr 1fr 1fr; }
}
.site-footer h3 {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-footer-heading);
  margin: 0 0 0.85rem;
}
.site-footer__brand { line-height: 1.5; }
.site-footer__brand strong { color: var(--color-footer-heading); font-size: 1.1rem; }
.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-footer li { margin-bottom: 0.5rem; }
.site-footer a {
  color: var(--color-footer-text);
  text-decoration: none;
}
.site-footer a:hover {
  color: var(--color-footer-heading);
  text-decoration: underline;
}
.site-footer__legal {
  max-width: var(--layout-max-width);
  margin: 2rem auto 0;
  padding: 1.25rem 1.25rem 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.86rem;
  color: var(--color-footer-text);
}


/* ── 16. Reveal animations + reduced motion ───────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s cubic-bezier(.2,.7,.2,1), transform 0.6s cubic-bezier(.2,.7,.2,1);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal,
  .reveal.is-visible,
  .hero::before,
  .card,
  .btn,
  .satellite__mission-link a,
  form.contact button,
  .site-nav__submenu,
  .card__cta::after { transition: none !important; animation: none !important; transform: none !important; }
}