/* ============================================================
   ASTech — style.css
   Dark, premium, glassmorphism. Vanilla CSS only.
   Table of contents:
   1.  Design tokens (CSS variables)
   2.  Reset & base
   3.  Typography helpers
   4.  Layout utilities (container, section, eyebrow, glass)
   5.  Buttons
   6.  Navbar
   7.  Hero + animated aurora
   8.  Statistics
   9.  About (mission/vision/values + cards)
   10. Apps
   11. Process timeline
   12. Legal (privacy / terms)
   13. FAQ accordion
   14. Contact
   15. Footer
   16. Back-to-top
   17. Scroll-reveal & keyframes
   18. Responsive
   19. Accessibility (focus, reduced motion)
============================================================ */

/* ------------------------------------------------------------
   1. DESIGN TOKENS
------------------------------------------------------------ */
:root {
  /* Brand palette (from brief) */
  --bg:        #0F172A;
  --card:      #1E293B;
  --primary:   #2563EB;
  --accent:    #38BDF8;
  --secondary: #7C3AED;
  --text:      #F8FAFC;

  /* Derived surfaces & text */
  --bg-2:      #0B1220;
  --muted:     #94A3B8;
  --muted-2:   #64748B;
  --line:      rgba(148, 163, 184, 0.16);
  --line-strong: rgba(148, 163, 184, 0.28);

  /* Glass */
  --glass-bg:  rgba(30, 41, 59, 0.55);
  --glass-brd: rgba(148, 163, 184, 0.16);
  --glass-hi:  rgba(255, 255, 255, 0.06);

  /* Signature gradients */
  /* --grad-brand: linear-gradient(120deg, var(--accent), var(--primary) 55%, var(--secondary)); */
  --grad-brand: linear-gradient(120deg, var(--accent), var(--secondary));
  --grad-text:  linear-gradient(100deg, #7DD3FC, #60A5FA 45%, #A78BFA);
  --grad-soft:  linear-gradient(135deg, rgba(56,189,248,0.16), rgba(124,58,237,0.16));

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(2, 6, 23, 0.4);
  --shadow-md: 0 14px 40px rgba(2, 6, 23, 0.55);
  --shadow-lg: 0 30px 80px rgba(2, 6, 23, 0.6);
  --shadow-glow: 0 20px 60px rgba(37, 99, 235, 0.28);

  /* Radii */
  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 26px;
  --r-xl: 34px;
  --r-pill: 999px;

  /* Type */
  --font-display: 'Space Grotesk', 'Segoe UI', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', monospace;

  /* Rhythm */
  --container: 1180px;
  --gutter: clamp(20px, 5vw, 40px);
  --section-y: clamp(64px, 9vw, 128px);

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.6s;
}

/* ------------------------------------------------------------
   2. RESET & BASE
------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px; /* offset for sticky navbar */
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Ambient page background: subtle fixed radial washes */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60% 50% at 82% 0%, rgba(37, 99, 235, 0.20), transparent 60%),
    radial-gradient(50% 45% at 8% 12%, rgba(124, 58, 237, 0.16), transparent 60%),
    radial-gradient(60% 60% at 50% 100%, rgba(56, 189, 248, 0.10), transparent 65%),
    var(--bg);
}

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

a { color: inherit; text-decoration: none; }

ul { list-style: none; padding: 0; }

button { font: inherit; cursor: pointer; color: inherit; background: none; border: none; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; }

/* ------------------------------------------------------------
   3. TYPOGRAPHY HELPERS
------------------------------------------------------------ */
.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.eyebrow__bracket { color: var(--secondary); font-weight: 700; }

/* ------------------------------------------------------------
   4. LAYOUT UTILITIES
------------------------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); position: relative; }

.section__head { max-width: 760px; margin-bottom: clamp(36px, 5vw, 60px); }
.section__title { font-size: clamp(1.9rem, 4.4vw, 3.1rem); }
.section__intro { color: var(--muted); font-size: clamp(1rem, 1.6vw, 1.15rem); margin-top: 1rem; max-width: 62ch; }
.subsection__title { font-size: clamp(1.2rem, 2.4vw, 1.5rem); margin: clamp(36px,5vw,54px) 0 22px; }

/* Glassmorphism surface */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-brd);
  border-radius: var(--r-lg);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow: var(--shadow-md), inset 0 1px 0 var(--glass-hi);
}

/* Icon chip */
.icon-chip {
  display: inline-grid;
  place-items: center;
  width: 48px; height: 48px;
  border-radius: 14px;
  background: var(--grad-soft);
  border: 1px solid var(--line);
  color: var(--accent);
}
.icon-chip img { filter: none; }

/* Pills */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.4em 0.9em;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-strong);
}
.pill--live { color: var(--accent); background: rgba(56, 189, 248, 0.10); }
.pill--live::before { content:""; width:7px; height:7px; border-radius:50%; background: var(--accent); box-shadow: 0 0 0 3px rgba(56,189,248,0.22); }
.pill--soon { color: var(--secondary); background: rgba(124, 58, 237, 0.12); }

/* ------------------------------------------------------------
   5. BUTTONS
------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 0.85em 1.4em;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
              background 0.25s var(--ease), border-color 0.25s var(--ease);
  will-change: transform;
}
.btn:active { transform: translateY(1px); }
.btn__icon { transition: transform 0.25s var(--ease); }
.btn:hover .btn__icon { transform: translateX(3px); }

.btn--sm { padding: 0.6em 1.05em; font-size: 0.9rem; }
.btn--wide { width: 100%; }

.btn--primary {
  color: #06122b;
  background: var(--grad-brand);
  box-shadow: var(--shadow-glow);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 26px 70px rgba(37, 99, 235, 0.42); }

.btn--ghost {
  color: var(--text);
  border-color: var(--line-strong);
  background: rgba(148, 163, 184, 0.05);
}
.btn--ghost:hover { border-color: var(--accent); background: rgba(56, 189, 248, 0.08); transform: translateY(-2px); }

/* Google Play button */
.btn--play {
  color: var(--text);
  background: rgba(15, 23, 42, 0.7);
  border-color: var(--line-strong);
  padding: 0.6em 1.3em;
}
.btn--play:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--play img { color: var(--accent); }
.btn--play span { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.1; text-align: left; }
.btn--play small { font-size: 0.62rem; font-weight: 500; color: var(--muted); letter-spacing: 0.04em; }
.btn--play span { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; }

/* ------------------------------------------------------------
   6. NAVBAR
------------------------------------------------------------ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), backdrop-filter 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}
.navbar.is-scrolled {
  background: rgba(15, 23, 42, 0.72);
  border-bottom-color: var(--line);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav__brand { display: inline-flex; align-items: center; gap: 12px; }
.nav__brand img { height: 50px; width: auto; }

.nav__menu { display: flex; align-items: center; gap: clamp(4px, 1.4vw, 22px); }
.nav__menu a {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted);
  padding: 0.4em 0.2em;
  transition: color 0.2s var(--ease);
}
.nav__menu a:not(.nav__cta)::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 2px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
  border-radius: 2px;
}
.nav__menu a:not(.nav__cta):hover { color: var(--text); }
.nav__menu a:not(.nav__cta):hover::after,
.nav__menu a.is-active:not(.nav__cta)::after { transform: scaleX(1); }
.nav__menu a.is-active:not(.nav__cta) { color: var(--text); }
.nav__cta { color: #06122b !important; margin-left: 6px; padding: 0.6em 1.5em !important; }

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  border: 1px solid var(--line);
}
.nav__toggle span {
  display: block; width: 22px; height: 2px; border-radius: 2px;
  background: var(--text);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav__toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nav__toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ------------------------------------------------------------
   7. HERO + AURORA
------------------------------------------------------------ */
.hero { position: relative; padding-block: clamp(48px, 8vw, 96px) var(--section-y); overflow: hidden; }

.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(32px, 5vw, 64px);
}

.hero__title { font-size: clamp(2.4rem, 6vw, 4.4rem); letter-spacing: -0.03em; }
.hero__title .gradient-text { display: inline-block; }
.hero__lead {
  color: var(--muted);
  font-size: clamp(1.02rem, 1.7vw, 1.22rem);
  margin-top: 1.4rem;
  max-width: 56ch;
}
.hero__lead strong { color: var(--text); font-weight: 600; }

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 2rem; }

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 2.2rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.hero__badges li { display: inline-flex; align-items: center; gap: 0.5em; }
.hero__badges img { color: var(--accent); }

.hero__art { position: relative; }
.hero__art img { width: 100%; height: auto; filter: drop-shadow(0 40px 80px rgba(2, 6, 23, 0.6)); animation: float 7s ease-in-out infinite; }

/* Aurora animated background */
.aurora { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.hero__inner { position: relative; z-index: 1; }

.aurora__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  mix-blend-mode: screen;
}
.aurora__blob--1 { width: 46vw; height: 46vw; max-width: 620px; max-height: 620px; top: -14%; right: -8%; background: radial-gradient(circle at 30% 30%, #2563EB, transparent 70%); animation: drift1 18s ease-in-out infinite; }
.aurora__blob--2 { width: 40vw; height: 40vw; max-width: 540px; max-height: 540px; bottom: -18%; left: -10%; background: radial-gradient(circle at 40% 40%, #7C3AED, transparent 70%); animation: drift2 22s ease-in-out infinite; }
.aurora__blob--3 { width: 30vw; height: 30vw; max-width: 420px; max-height: 420px; top: 30%; left: 40%; background: radial-gradient(circle at 50% 50%, #38BDF8, transparent 70%); opacity: 0.4; animation: drift3 20s ease-in-out infinite; }

.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(148,163,184,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(148,163,184,0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(70% 60% at 50% 30%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(70% 60% at 50% 30%, #000 40%, transparent 100%);
}

/* ------------------------------------------------------------
   8. STATISTICS
------------------------------------------------------------ */
.stats { padding-block: clamp(8px, 2vw, 16px) 0; }
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(14px, 2vw, 22px);
}
.stat { padding: clamp(22px, 3vw, 32px); text-align: center; }
.stat__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.6vw, 3.1rem);
  line-height: 1;
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  letter-spacing: -0.02em;
}
.stat__label { display: block; margin-top: 0.6rem; color: var(--muted); font-size: 0.92rem; }

/* ------------------------------------------------------------
   9. ABOUT
------------------------------------------------------------ */
.mvv {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 24px);
}
.mvv__card { padding: clamp(24px, 3vw, 34px); }
.mvv__icon { color: var(--accent); margin-bottom: 1rem; }
.mvv__card h3 { font-size: 1.3rem; margin-bottom: 0.5rem; }
.mvv__card p { color: var(--muted); font-size: 0.98rem; }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 22px);
}
.card { padding: clamp(24px, 2.6vw, 32px); transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease); }
.card__icon { margin-bottom: 1.1rem; }
.card h4 { font-size: 1.15rem; margin-bottom: 0.5rem; }
.card p { color: var(--muted); font-size: 0.96rem; }
.card--hover:hover { transform: translateY(-6px); border-color: var(--line-strong); box-shadow: var(--shadow-lg); }

/* ------------------------------------------------------------
   10. APPS
------------------------------------------------------------ */
.appcard {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  padding: clamp(24px, 3.5vw, 48px);
  margin-bottom: clamp(20px, 3vw, 32px);
  overflow: hidden;
  position: relative;
}
.appcard::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(60% 80% at 20% 20%, rgba(56,189,248,0.10), transparent 60%);
  pointer-events: none;
}
.appcard > * { position: relative; z-index: 1; }

.appcard__media { display: grid; place-items: center; }
.appcard__media img { width: min(280px, 80%); border-radius: 28px; box-shadow: var(--shadow-lg); }
.appcard__media--future img { width: min(420px, 100%); box-shadow: none; border-radius: var(--r-md); }

.appcard__title { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 0.7rem 0 0.6rem; }
.appcard__desc { color: var(--muted); max-width: 54ch; }

.feature-list { margin: 1.4rem 0; display: grid; gap: 0.7rem; }
.feature-list li { display: flex; align-items: flex-start; gap: 0.65em; color: var(--text); font-size: 0.98rem; }
.feature-list img { color: var(--accent); margin-top: 3px; flex: 0 0 auto; }

.appcard__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 1.6rem; }
.appcard--future { grid-template-columns: 1.1fr 0.9fr; }

/* Store meta row (category · privacy · rating) */
.store-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px;
  margin-top: 1.3rem; padding-top: 1.2rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem; color: var(--muted);
}
.store-meta span { display: inline-flex; align-items: center; gap: 7px; }
.store-meta .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex: 0 0 auto; }
.store-meta strong { color: var(--text); font-weight: 600; }

/* Real screenshot gallery (horizontal scroll-snap strip) */
.shots {
  grid-column: 1 / -1;
  margin-top: clamp(20px, 3vw, 32px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--border);
}
.shots__label {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.04em;
  text-transform: uppercase; color: var(--muted); margin: 0 0 14px;
}
.shots__strip {
  display: flex; gap: 16px; overflow-x: auto; padding-bottom: 10px;
  scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
  scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.shots__strip::-webkit-scrollbar { height: 8px; }
.shots__strip::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }
.shots__strip img {
  height: 340px; width: auto; flex: 0 0 auto; scroll-snap-align: start;
  border-radius: 18px; border: 1px solid var(--border);
  background: var(--card-2, #16233b); box-shadow: var(--shadow-md);
  object-fit: cover;
}

/* Coming-soon / placeholder media tile for apps without a screenshot yet */
.appcard__media--placeholder {
  aspect-ratio: 9 / 16; width: min(280px, 80%);
  border-radius: 28px; border: 1px dashed var(--border);
  background:
    radial-gradient(70% 55% at 50% 30%, rgba(124,58,237,0.20), transparent 70%),
    linear-gradient(160deg, rgba(37,99,235,0.14), rgba(15,23,42,0.4));
  display: grid; place-items: center; text-align: center; padding: 24px;
  box-shadow: var(--shadow-lg);
}
.appcard__media--placeholder .ph-mono {
  font-family: var(--font-mono); font-size: 0.8rem; color: var(--muted);
  letter-spacing: 0.03em;
}
.appcard__media--placeholder .ph-name {
  font-family: var(--font-display); font-size: 1.5rem; font-weight: 600;
  color: var(--text); margin: 10px 0 4px;
}

/* ------------------------------------------------------------
   11. PROCESS TIMELINE
------------------------------------------------------------ */
.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 2.4vw, 28px);
}
.timeline__item { position: relative; display: flex; gap: 16px; align-items: flex-start; }
.timeline__step {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--accent);
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 14px;
  border: 1px solid var(--line-strong);
  background: var(--grad-soft);
}
.timeline__content { padding: 22px; flex: 1; }
.timeline__content h3 { font-size: 1.18rem; margin-bottom: 0.4rem; }
.timeline__content p { color: var(--muted); font-size: 0.95rem; }

/* ------------------------------------------------------------
   12. LEGAL (privacy / terms)
------------------------------------------------------------ */
.legal__inner { max-width: 900px; margin-inline: auto; }
.legal__body { padding: clamp(28px, 4vw, 48px); }
.legal__body h3 {
  font-size: 1.2rem;
  margin: 1.8rem 0 0.6rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
}
.legal__body h3:first-child { margin-top: 0; padding-top: 0; border-top: none; }
.legal__body p { color: var(--muted); margin-bottom: 0.7rem; }
.legal__body ul { margin: 0.4rem 0 1rem; display: grid; gap: 0.5rem; }
.legal__body li { color: var(--muted); position: relative; padding-left: 1.4em; }
.legal__body li::before { content: ""; position: absolute; left: 0; top: 0.7em; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.legal__body strong { color: var(--text); font-weight: 600; }
.legal__body a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.legal__body a:hover { color: var(--text); }

/* ------------------------------------------------------------
   13. FAQ ACCORDION
------------------------------------------------------------ */
.faq__inner { max-width: 860px; margin-inline: auto; }
.accordion { display: grid; gap: 12px; }
.accordion__item {
  border: 1px solid var(--glass-brd);
  border-radius: var(--r-md);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow: hidden;
  transition: border-color 0.3s var(--ease);
}
.accordion__item.is-open { border-color: var(--line-strong); }
.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  padding: 20px 22px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
}
.accordion__plus { position: relative; flex: 0 0 auto; width: 20px; height: 20px; }
.accordion__plus::before, .accordion__plus::after {
  content: ""; position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: var(--accent); border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.accordion__plus::before { width: 16px; height: 2px; }
.accordion__plus::after { width: 2px; height: 16px; }
.accordion__item.is-open .accordion__plus::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }

.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s var(--ease);
}
.accordion__panel > p { overflow: hidden; padding: 0 22px; color: var(--muted); }
.accordion__item.is-open .accordion__panel { grid-template-rows: 1fr; }
.accordion__item.is-open .accordion__panel > p { padding-bottom: 22px; }
.accordion__panel a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

/* ------------------------------------------------------------
   14. CONTACT
------------------------------------------------------------ */
.contact__card {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  padding: clamp(32px, 5vw, 64px);
  position: relative;
  overflow: hidden;
}
.contact__card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(70% 90% at 90% 10%, rgba(124,58,237,0.16), transparent 60%);
  pointer-events: none;
}
.contact__card > * { position: relative; z-index: 1; }
.contact__copy .section__title { font-size: clamp(1.7rem, 3.4vw, 2.6rem); }

.contact__list { display: grid; gap: 14px; }
.contact__list li { display: flex; align-items: center; gap: 14px; }
.contact__label { display: block; font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted-2); }
.contact__value { display: block; font-family: var(--font-display); font-weight: 600; color: var(--text); }
a.contact__value:hover { color: var(--accent); }
.contact__value--muted { color: var(--muted); font-weight: 500; }

.contact__card .btn--wide { grid-column: 1 / -1; margin-top: 0.4rem; }

/* ------------------------------------------------------------
   15. FOOTER
------------------------------------------------------------ */
.footer { border-top: 1px solid var(--line); margin-top: var(--section-y); padding-top: clamp(40px, 5vw, 64px); }
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: clamp(24px, 3vw, 40px);
  padding-bottom: clamp(32px, 4vw, 48px);
}
.footer__brand img { height: 40px; width: auto; margin-bottom: 1rem; }
.footer__brand p { color: var(--muted); font-size: 0.94rem; max-width: 40ch; }
.footer__links h4, .footer__social h4 {
  font-family: var(--font-display); font-size: 0.95rem; margin-bottom: 1rem; color: var(--text);
}
.footer__links a { color: var(--muted); font-size: 0.94rem; line-height: 2.2; transition: color 0.2s var(--ease); }
.footer__links a:hover { color: var(--accent); }
.footer__icons { display: flex; gap: 12px; }
.icon-chip--btn { width: 42px; height: 42px; border-radius: 12px; transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease); }
.icon-chip--btn:hover { transform: translateY(-3px); border-color: var(--accent); color: var(--text); }

.footer__bottom {
  display: flex; flex-wrap: wrap; gap: 8px 20px;
  justify-content: space-between; align-items: center;
  padding-block: 22px 40px;
  border-top: 1px solid var(--line);
  color: var(--muted-2); font-size: 0.86rem;
}
.footer__made { font-family: var(--font-mono); }

/* ------------------------------------------------------------
   16. BACK-TO-TOP
------------------------------------------------------------ */
.to-top {
  position: fixed;
  right: 22px; bottom: 22px;
  z-index: 90;
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 14px;
  color: #06122b;
  background: var(--grad-brand);
  box-shadow: var(--shadow-glow);
  transform: translateY(20px) scale(0.8);
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.to-top img { transform: rotate(-90deg); }
.to-top.is-visible { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.to-top:hover { transform: translateY(-3px) scale(1.05); }

/* ------------------------------------------------------------
   17. SCROLL-REVEAL & KEYFRAMES
------------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal.is-visible { opacity: 1; transform: none; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}
@keyframes drift1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-6%, 8%) scale(1.08); }
}
@keyframes drift2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(8%, -6%) scale(1.12); }
}
@keyframes drift3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-10%, -8%) scale(0.92); }
}

/* ------------------------------------------------------------
   18. RESPONSIVE
------------------------------------------------------------ */
@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__art { order: -1; max-width: 480px; margin-inline: auto; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .mvv, .cards, .timeline { grid-template-columns: repeat(2, 1fr); }
  .appcard, .appcard--future { grid-template-columns: 1fr; }
  .appcard__media { order: -1; }
  .appcard__media img { width: min(240px, 66%); }
  .appcard__media--future img { width: min(360px, 80%); }
  .appcard__media--placeholder { order: -1; width: min(240px, 66%); }
  .shots__strip img { height: 300px; }
  .contact__card { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }

  /* Mobile nav */
  .nav__toggle { display: flex; }
  .nav__menu {
    position: fixed;
    inset: 72px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px var(--gutter) 28px;
    background: rgba(11, 18, 32, 0.96);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
  }
  .nav__menu.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav__menu a { padding: 14px 6px; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .nav__menu a:not(.nav__cta)::after { display: none; }
  .nav__cta { text-align: center; margin: 10px 0 0; border-bottom: none !important; }
}

@media (max-width: 560px) {
  :root { --section-y: clamp(52px, 12vw, 80px); }
  .stats__grid { grid-template-columns: 1fr 1fr; }
  .mvv, .cards, .timeline { grid-template-columns: 1fr; }
  .hero__actions .btn, .appcard__actions .btn { flex: 1 1 auto; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .to-top { right: 16px; bottom: 16px; }
}

/* ------------------------------------------------------------
   19. ACCESSIBILITY
------------------------------------------------------------ */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: 16px; top: -60px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--card);
  border: 1px solid var(--line-strong);
  color: var(--text);
  transition: top 0.25s var(--ease);
}
.skip-link:focus { top: 16px; }

/* Respect reduced-motion: disable non-essential animation/transition */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::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; }
  .hero__art img { animation: none; }
}