/* ==========================================================================
   Astraveon — Design System
   Dark-native, precise, cosmic. One accent family, many app hues.
   ========================================================================== */

/* ---------- 1. Tokens ---------------------------------------------------- */
:root {
  /* Surfaces */
  --canvas:        #08090a;
  --canvas-2:      #0b0c0e;
  --surface:       #0f1011;
  --surface-2:     #141518;
  --surface-3:     #191a1e;
  --border:        rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.13);

  /* Text */
  --text:          #f7f8f8;
  --text-2:        #a2a6ad;
  --text-3:        #6e7278;
  --text-4:        #4a4d52;

  /* Brand */
  --accent:        #7d7cff;
  --accent-2:      #4fd1e8;
  --accent-3:      #b47cff;
  --accent-soft:   rgba(125, 124, 255, 0.14);
  --accent-line:   rgba(125, 124, 255, 0.32);

  /* Type */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display",
               "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "Berkeley Mono", ui-monospace, "SF Mono", "JetBrains Mono",
               Menlo, monospace;

  /* Space */
  --s-1: 4px;  --s-2: 8px;  --s-3: 12px; --s-4: 16px;
  --s-5: 24px; --s-6: 32px; --s-7: 48px; --s-8: 64px;
  --s-9: 96px; --s-10: 128px;

  /* Radii */
  --r-sm: 8px; --r-md: 12px; --r-lg: 16px; --r-xl: 22px; --r-pill: 999px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --fast: 160ms; --base: 220ms; --slow: 420ms;

  /* Layout */
  --maxw: 1200px;
  --gutter: 24px;
  --nav-h: 68px;
}

/* ---------- 2. Reset ----------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 24px);
}

body {
  background: var(--canvas);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  font-feature-settings: "cv01" 1, "ss03" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
ul { list-style: none; padding: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

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

/* ---------- 3. Ambient background --------------------------------------- */
.bg-fx {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

/* Aurora */
.bg-fx::before {
  content: "";
  position: absolute;
  top: -40vh; left: 50%;
  width: 140vw; height: 110vh;
  transform: translateX(-50%);
  background:
    radial-gradient(46% 52% at 22% 30%, rgba(125, 124, 255, 0.22), transparent 68%),
    radial-gradient(40% 46% at 78% 18%, rgba(79, 209, 232, 0.14), transparent 66%),
    radial-gradient(52% 44% at 58% 6%, rgba(180, 124, 255, 0.16), transparent 70%);
  filter: blur(30px);
  animation: drift 26s var(--ease) infinite alternate;
}

@keyframes drift {
  from { transform: translateX(-50%) translateY(-2%) scale(1); }
  to   { transform: translateX(-48%) translateY(3%) scale(1.08); }
}

/* Starfield */
.bg-fx::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 18%, rgba(255,255,255,0.55), transparent),
    radial-gradient(1.2px 1.2px at 68% 8%,  rgba(255,255,255,0.4),  transparent),
    radial-gradient(1.6px 1.6px at 84% 42%, rgba(255,255,255,0.45), transparent),
    radial-gradient(1.1px 1.1px at 32% 62%, rgba(255,255,255,0.32), transparent),
    radial-gradient(1.5px 1.5px at 52% 82%, rgba(255,255,255,0.3),  transparent),
    radial-gradient(1.2px 1.2px at 6%  78%, rgba(255,255,255,0.35), transparent),
    radial-gradient(1.3px 1.3px at 92% 70%, rgba(255,255,255,0.3),  transparent);
  background-repeat: repeat;
  background-size: 100% 100%;
  opacity: 0.7;
}

/* Grain */
.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- 4. Primitives ----------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--s-9); }
.section--tight { padding-block: var(--s-8); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

h1, h2, h3, h4 { font-weight: 510; line-height: 1.06; letter-spacing: -0.03em; }

.h-display { font-size: clamp(2.6rem, 6.4vw, 5.1rem); letter-spacing: -0.045em; }
.h-section { font-size: clamp(1.9rem, 3.6vw, 2.9rem); letter-spacing: -0.035em; }
.h-card    { font-size: 1.2rem; letter-spacing: -0.02em; }

.lede {
  font-size: clamp(1.02rem, 1.5vw, 1.18rem);
  color: var(--text-2);
  max-width: 60ch;
  font-weight: 380;
}

.muted { color: var(--text-2); }
.small { font-size: 0.88rem; }
.mono  { font-family: var(--font-mono); }

/* Available to assistive tech, invisible on screen */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.grad-text {
  background: linear-gradient(104deg, #ffffff 8%, var(--accent-2) 46%, var(--accent-3) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  margin-bottom: var(--s-7);
  max-width: 66ch;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  border-radius: var(--r-pill);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.03);
  transition: background var(--base) var(--ease), border-color var(--base) var(--ease),
              transform var(--base) var(--ease), color var(--base) var(--ease);
  white-space: nowrap;
}
.btn:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}
.btn:active { transform: translateY(0); }

.btn--primary {
  background: linear-gradient(180deg, #8b8aff, #6f6ef5);
  border-color: rgba(255, 255, 255, 0.16);
  color: #fff;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.22) inset, 0 10px 30px -12px rgba(125, 124, 255, 0.9);
}
.btn--primary:hover {
  background: linear-gradient(180deg, #9a99ff, #7b7aff);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.25) inset, 0 16px 40px -14px rgba(125, 124, 255, 1);
}
.btn--ghost { border-color: transparent; background: transparent; color: var(--text-2); }
.btn--ghost:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }

.btn .arrow { transition: transform var(--base) var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

/* Pills */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.76rem;
  color: var(--text-2);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.pill .dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 8px var(--accent-2);
}

/* ---------- 5. Navigation ----------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 60;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background var(--base) var(--ease), border-color var(--base) var(--ease),
              backdrop-filter var(--base) var(--ease);
}
.nav.is-stuck {
  background: rgba(8, 9, 10, 0.72);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom-color: var(--border);
}
.nav__inner {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  gap: var(--s-5);
}

.brand { display: flex; align-items: center; gap: 11px; font-weight: 560; letter-spacing: -0.03em; font-size: 1.06rem; }
.brand__mark { width: 26px; height: 26px; flex: none; }
.brand__mark .spin { transform-origin: 12px 12px; animation: spin 18s linear infinite; }
/* The hero core uses the same dashed orbit; give it a slower turn. */
.constellation__core .spin { transform-origin: 12px 12px; animation: spin 26s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.nav__links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav__link {
  padding: 8px 13px;
  border-radius: var(--r-sm);
  font-size: 0.9rem;
  color: var(--text-2);
  transition: color var(--fast) var(--ease), background var(--fast) var(--ease);
}
.nav__link:hover { color: var(--text); background: rgba(255, 255, 255, 0.045); }
.nav__link[aria-current="page"] { color: var(--text); }
.nav__cta { margin-left: var(--s-3); }

.nav__burger { display: none; margin-left: auto; width: 40px; height: 40px; border-radius: var(--r-sm); border: 1px solid var(--border); }
.nav__burger span { display: block; width: 16px; height: 1.5px; background: var(--text); margin: 3px auto; transition: transform var(--base) var(--ease), opacity var(--base) var(--ease); }
.nav.is-open .nav__burger span:nth-child(1) { transform: translateY(4.5px) rotate(45deg); }
.nav.is-open .nav__burger span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__burger span:nth-child(3) { transform: translateY(-4.5px) rotate(-45deg); }

/* ---------- 6. Hero ----------------------------------------------------- */
.hero { padding-block: clamp(72px, 11vw, 132px) var(--s-8); position: relative; }
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero__copy { display: flex; flex-direction: column; gap: var(--s-5); }
.hero h1 { max-width: 15ch; }
.hero .lede { max-width: 46ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-2); }

.hero__meta {
  display: flex; flex-wrap: wrap; gap: var(--s-5);
  margin-top: var(--s-5);
  padding-top: var(--s-5);
  border-top: 1px solid var(--border);
}
.hero__meta div { display: flex; flex-direction: column; gap: 2px; }
.hero__meta dt { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-3); }
.hero__meta dd { font-size: 1.28rem; font-weight: 520; letter-spacing: -0.03em; }

/* Icon constellation */
.constellation {
  position: relative;
  aspect-ratio: 1 / 1;
  width: 100%;
  max-width: 560px;
  margin-inline: auto;
}
.constellation::before {
  content: "";
  position: absolute; inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(125,124,255,0.16), transparent 62%);
  filter: blur(20px);
}
.orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(255, 255, 255, 0.07);
  inset: 0;
  animation: spin-slow 60s linear infinite;
}
.orbit--2 { inset: 14%; animation-duration: 44s; animation-direction: reverse; }
.orbit--3 { inset: 28%; animation-duration: 32s; }
@keyframes spin-slow { to { transform: rotate(360deg); } }

.constellation__core {
  position: absolute;
  inset: 38%;
  border-radius: 50%;
  background: linear-gradient(150deg, #1a1b22, #0d0e11);
  border: 1px solid var(--border-strong);
  display: grid;
  place-items: center;
  box-shadow: 0 0 60px -10px rgba(125, 124, 255, 0.55), 0 0 0 1px rgba(255,255,255,0.04) inset;
  animation: pulse 6s var(--ease) infinite;
}
@keyframes pulse { 0%,100% { box-shadow: 0 0 50px -12px rgba(125,124,255,0.5), 0 0 0 1px rgba(255,255,255,0.04) inset; } 50% { box-shadow: 0 0 80px -8px rgba(125,124,255,0.8), 0 0 0 1px rgba(255,255,255,0.08) inset; } }
.constellation__core svg { width: 42%; height: 42%; }

.chip {
  position: absolute;
  width: var(--size, 54px);
  height: var(--size, 54px);
  border-radius: 26%;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 30px -12px rgba(0, 0, 0, 0.9), 0 0 22px -6px var(--accent-c, rgba(125,124,255,0.6));
  transform: translate(-50%, -50%) rotate(var(--rot, 0deg));
  animation: bob 7s var(--ease) infinite;
  animation-delay: var(--delay, 0s);
  background: #000;
  transition: box-shadow var(--base) var(--ease);
}
.chip img { width: 100%; height: 100%; object-fit: cover; }
.chip:hover { z-index: 5; box-shadow: 0 0 34px -4px var(--accent-c, rgba(125,124,255,0.9)); }
@keyframes bob {
  0%, 100% { transform: translate(-50%, -50%) translateY(0) rotate(var(--rot, 0deg)); }
  50%      { transform: translate(-50%, -50%) translateY(-9px) rotate(var(--rot, 0deg)); }
}

/* ---------- 7. Marquee -------------------------------------------------- */
.marquee {
  border-block: 1px solid var(--border);
  padding-block: var(--s-5);
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track { display: flex; gap: var(--s-6); width: max-content; animation: scroll 42s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes scroll { to { transform: translateX(-50%); } }
.marquee__item {
  display: flex; align-items: center; gap: 11px;
  color: var(--text-3);
  font-size: 0.86rem;
  white-space: nowrap;
  transition: color var(--base) var(--ease);
}
.marquee__item:hover { color: var(--text); }
.marquee__item img { width: 26px; height: 26px; border-radius: 7px; opacity: 0.85; }

/* ---------- 8. Stats ---------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.stat { background: var(--canvas-2); padding: var(--s-6) var(--s-5); display: flex; flex-direction: column; gap: 6px; }
.stat__value { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 520; letter-spacing: -0.045em; }
.stat__label { font-size: 0.84rem; color: var(--text-3); }

/* ---------- 9. Capabilities -------------------------------------------- */
.caps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-4); }
.cap {
  position: relative;
  padding: var(--s-6);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255,255,255,0.028), rgba(255,255,255,0.008));
  display: flex; flex-direction: column; gap: var(--s-3);
  overflow: hidden;
  transition: border-color var(--base) var(--ease), transform var(--base) var(--ease);
}
.cap::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(70% 60% at 50% 0%, rgba(125,124,255,0.13), transparent 70%);
  opacity: 0; transition: opacity var(--slow) var(--ease);
}
.cap:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.cap:hover::after { opacity: 1; }
.cap__icon {
  width: 36px; height: 36px; border-radius: 10px;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--accent-2);
}
.cap h3 { font-size: 1.02rem; font-weight: 520; letter-spacing: -0.02em; }
.cap p { font-size: 0.9rem; color: var(--text-2); }

/* ---------- 10. Filters ------------------------------------------------- */
.filters {
  display: flex; flex-wrap: wrap; gap: var(--s-2);
  margin-bottom: var(--s-6);
  align-items: center;
}
.filter {
  padding: 8px 15px;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  font-size: 0.86rem;
  color: var(--text-2);
  transition: all var(--base) var(--ease);
}
.filter:hover { color: var(--text); border-color: var(--border-strong); }
.filter[aria-pressed="true"] {
  color: var(--text);
  background: var(--accent-soft);
  border-color: var(--accent-line);
}
.filter__count { color: var(--text-4); font-family: var(--font-mono); font-size: 0.76rem; margin-left: 5px; }

.search {
  margin-left: auto;
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: rgba(255,255,255,0.02);
  transition: border-color var(--base) var(--ease);
}
.search:focus-within { border-color: var(--accent-line); }
.search svg { color: var(--text-3); flex: none; }
.search input {
  background: none; border: none; outline: none; color: var(--text);
  font: inherit; font-size: 0.88rem; width: 150px;
}
.search input::placeholder { color: var(--text-4); }

/* ---------- 11. App grid ------------------------------------------------ */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(272px, 1fr));
  gap: var(--s-4);
}

.app-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  padding: var(--s-5);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background: linear-gradient(180deg, var(--surface), var(--canvas-2));
  overflow: hidden;
  transition: transform var(--base) var(--ease), border-color var(--base) var(--ease),
              box-shadow var(--slow) var(--ease);
}
.app-card::before {
  content: "";
  position: absolute;
  top: -60%; left: 50%;
  width: 130%; height: 120%;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, color-mix(in srgb, var(--accent-c) 26%, transparent), transparent);
  opacity: 0;
  transition: opacity var(--slow) var(--ease);
  pointer-events: none;
}
.app-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent-c) 42%, var(--border-strong));
  box-shadow: 0 22px 50px -26px color-mix(in srgb, var(--accent-c) 70%, transparent);
}
.app-card:hover::before { opacity: 1; }

.app-card__top { display: flex; gap: var(--s-4); align-items: flex-start; position: relative; }
.app-card__icon {
  width: 58px; height: 58px; flex: none;
  border-radius: 15px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.11);
  box-shadow: 0 8px 22px -10px rgba(0,0,0,0.9), 0 0 20px -8px var(--accent-c);
  background: #000;
}
.app-card__icon img { width: 100%; height: 100%; object-fit: cover; }
.app-card__head { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.app-card__name { font-size: 1.06rem; font-weight: 520; letter-spacing: -0.025em; }
.app-card__sub {
  font-size: 0.79rem; color: var(--text-3);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.app-card__tagline {
  position: relative;
  font-size: 0.95rem;
  color: var(--text);
  letter-spacing: -0.015em;
  text-wrap: balance;
}
.app-card__blurb { position: relative; font-size: 0.86rem; color: var(--text-2); }

.app-card__highlights { position: relative; display: flex; flex-direction: column; gap: 7px; margin-top: auto; padding-top: var(--s-3); border-top: 1px solid var(--border); }
.app-card__highlights li { display: flex; gap: 9px; font-size: 0.82rem; color: var(--text-2); align-items: flex-start; }
.app-card__highlights li::before {
  content: "";
  width: 4px; height: 4px; margin-top: 8px; border-radius: 50%; flex: none;
  background: var(--accent-c);
  box-shadow: 0 0 7px var(--accent-c);
}
.app-card__foot {
  position: relative;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s-3);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-4);
  letter-spacing: 0.04em;
}
.app-card__cat {
  color: color-mix(in srgb, var(--accent-c) 78%, #fff);
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.app-card__foot > :last-child { white-space: nowrap; }

.app-card.is-hidden { display: none; }

/* ---------- 12. Process ------------------------------------------------- */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s-5); counter-reset: step; }
.step { position: relative; padding-top: var(--s-5); border-top: 1px solid var(--border); }
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-2);
  letter-spacing: 0.1em;
}
.step h3 { margin-top: var(--s-3); font-size: 1rem; font-weight: 520; }
.step p { margin-top: 6px; font-size: 0.88rem; color: var(--text-2); }

/* ---------- 13. Stack strip -------------------------------------------- */
.stack { display: flex; flex-wrap: wrap; gap: var(--s-2); }
.stack span {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  padding: 7px 13px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  color: var(--text-2);
  background: rgba(255,255,255,0.02);
  transition: all var(--base) var(--ease);
}
.stack span:hover { color: var(--text); border-color: var(--border-strong); transform: translateY(-2px); }

/* ---------- 14. CTA ---------------------------------------------------- */
.cta {
  position: relative;
  border: 1px solid var(--border-strong);
  border-radius: 28px;
  padding: clamp(40px, 6vw, 72px);
  text-align: center;
  overflow: hidden;
  background: linear-gradient(180deg, var(--surface-2), var(--canvas));
  display: flex; flex-direction: column; align-items: center; gap: var(--s-5);
}
.cta::before {
  content: "";
  position: absolute; inset: -50% -10% auto;
  height: 150%;
  background: radial-gradient(48% 60% at 50% 0%, rgba(125,124,255,0.3), transparent 70%);
  pointer-events: none;
}
.cta > * { position: relative; }
.cta h2 { max-width: 22ch; }
.cta .lede { text-align: center; }

/* ---------- 15. Footer ------------------------------------------------- */
.footer { border-top: 1px solid var(--border); margin-top: var(--s-9); padding-block: var(--s-7) var(--s-6); }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--s-6); }
.footer h4 { font-size: 0.78rem; font-family: var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); margin-bottom: var(--s-4); font-weight: 400; }
.footer li + li { margin-top: 10px; }
.footer a { font-size: 0.88rem; color: var(--text-2); transition: color var(--fast) var(--ease); }
.footer a:hover { color: var(--text); }
.footer__bottom {
  margin-top: var(--s-7); padding-top: var(--s-5);
  border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: var(--s-4);
  align-items: center; justify-content: space-between;
  font-size: 0.8rem; color: var(--text-4);
}
.footer__blurb { max-width: 34ch; font-size: 0.88rem; color: var(--text-2); margin-top: var(--s-4); }

/* ---------- 16. Page header (sub-pages) -------------------------------- */
.page-head { padding-block: clamp(56px, 8vw, 96px) var(--s-7); }
.page-head .lede { margin-top: var(--s-5); }

/* ---------- 17. Reveal ------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 700ms var(--ease), transform 700ms var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- 18. Responsive -------------------------------------------- */
@media (max-width: 1000px) {
  .hero__grid { grid-template-columns: 1fr; }
  .constellation { max-width: 440px; order: -1; }
  .caps { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); gap: var(--s-6) var(--s-5); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--s-6); }
}

@media (max-width: 720px) {
  :root { --gutter: 18px; }
  .nav__links {
    position: fixed;
    inset: var(--nav-h) 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--s-4) var(--gutter) var(--s-5);
    background: rgba(8,9,10,0.97);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: all var(--base) var(--ease);
  }
  .nav.is-open .nav__links { transform: none; opacity: 1; pointer-events: auto; }
  .nav__link { padding: 13px 8px; font-size: 1rem; border-bottom: 1px solid var(--border); border-radius: 0; }
  .nav__cta { margin: var(--s-4) 0 0; }
  .nav__cta .btn { width: 100%; justify-content: center; }
  .nav__burger { display: block; }

  .stats { grid-template-columns: 1fr 1fr; }
  .caps { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .search { margin-left: 0; width: 100%; }
  .search input { width: 100%; }
  .constellation { max-width: 330px; }
  .chip { --size: 42px !important; }
  .section { padding-block: var(--s-8); }
  .hero__meta { gap: var(--s-4); }
}

/* ---------- 19. Motion preferences ------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 20. App card platform note -------------------------------- */
/* The store row under each app card. The plain note is what ships today —
   the apps are not public yet, so no store is named anywhere on the site.
   The button styles stay ready for when listings go live. */
.app-card__stores {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 520;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: border-color var(--fast) var(--ease),
              background var(--fast) var(--ease),
              transform var(--fast) var(--ease);
}

.store-btn:hover {
  border-color: color-mix(in srgb, var(--accent-c, var(--accent)) 55%, transparent);
  background: color-mix(in srgb, var(--accent-c, var(--accent)) 14%, transparent);
  transform: translateY(-1px);
}

.store-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.store-note {
  display: inline-flex;
  align-items: center;
  color: var(--text-3);
  font-size: 0.78rem;
  letter-spacing: -0.01em;
}

/* ---------- 21. Print ------------------------------------------------- */
@media print {
  .bg-fx, .grain, .nav, .footer { display: none; }
  body { background: #fff; color: #000; }
  .app-card__stores { display: none; }
}