:root {
  color-scheme: dark;
  --ink: #020617;
  --panel: #0f172a;
  --panel-soft: #111d34;
  --line: #24324c;
  --muted: #94a3b8;
  --text: #f8fafc;
  --cyan: #13bff2;
  --cyan-soft: #8be3ff;
  --violet: #8b5cf6;
  --coral: #fb7185;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 78% 9%, rgb(19 191 242 / 0.11), transparent 28rem),
    radial-gradient(circle at 16% 34%, rgb(139 92 246 / 0.07), transparent 25rem),
    var(--ink);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 100;
  border-radius: 0.75rem;
  background: white;
  color: var(--ink);
  padding: 0.8rem 1rem;
}
.skip-link:focus { top: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  width: min(100% - 3rem, 1240px);
  margin: 0 auto;
  padding: 1.15rem 0;
  border-bottom: 1px solid rgb(148 163 184 / 0.16);
  background: rgb(2 6 23 / 0.78);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 0.7rem; font-weight: 800; letter-spacing: -0.02em; }
.brand-mark {
  display: grid;
  width: 2.25rem;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 0.72rem;
  background: var(--cyan);
  color: var(--ink);
  font-weight: 950;
  box-shadow: 0 0 2rem rgb(19 191 242 / 0.25);
}
.alpha-pill {
  border: 1px solid rgb(19 191 242 / 0.38);
  border-radius: 99rem;
  background: rgb(19 191 242 / 0.1);
  color: var(--cyan-soft);
  padding: 0.24rem 0.55rem;
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
nav { display: flex; align-items: center; gap: 1.6rem; color: #cbd5e1; font-size: 0.9rem; font-weight: 650; }
nav a:hover { color: white; }
.nav-cta { border: 1px solid var(--line); border-radius: 0.7rem; padding: 0.7rem 1rem; }

.hero {
  display: grid;
  grid-template-columns: 0.85fr 1.35fr;
  align-items: center;
  gap: 4.5rem;
  width: min(100% - 3rem, 1240px);
  min-height: 45rem;
  margin: 0 auto;
  padding: 6rem 0 5rem;
}
.eyebrow {
  margin: 0 0 1rem;
  color: var(--cyan);
  font-size: 0.77rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 1.6rem;
  font-size: clamp(3.3rem, 5.6vw, 6rem);
  line-height: 0.94;
  letter-spacing: -0.065em;
}
h1 span { color: var(--cyan); }
.hero-intro { max-width: 38rem; color: #cbd5e1; font-size: 1.15rem; line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.button {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 0.85rem;
  padding: 0.8rem 1.1rem;
  font-size: 0.92rem;
  font-weight: 850;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--cyan); color: var(--ink); }
.button-primary:hover { background: #67dcff; }
.button-secondary { border-color: var(--line); background: rgb(15 23 42 / 0.72); }
.button-secondary:hover { border-color: #475569; background: var(--panel); }
.proof-list { display: flex; flex-wrap: wrap; gap: 0.7rem 1.2rem; margin: 2rem 0 0; padding: 0; color: var(--muted); font-size: 0.8rem; list-style: none; }
.proof-list li::before { content: ""; display: inline-block; width: 0.45rem; height: 0.45rem; margin-right: 0.48rem; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0.8rem var(--cyan); }

.hero-visual { position: relative; perspective: 1200px; }
.visual-glow { position: absolute; inset: 5% -5% -8%; background: linear-gradient(135deg, rgb(19 191 242 / 0.2), rgb(139 92 246 / 0.17)); filter: blur(4rem); }
.app-frame, .gallery-frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgb(139 229 255 / 0.25);
  border-radius: 1.35rem;
  background: #050b1c;
  box-shadow: 0 2.5rem 6rem rgb(0 0 0 / 0.5);
}
.app-frame { transform: rotateY(-5deg) rotateX(2deg); }
.frame-bar { display: flex; align-items: center; gap: 0.4rem; min-height: 2.25rem; padding: 0 0.8rem; border-bottom: 1px solid #1e293b; background: #091024; }
.frame-bar span { width: 0.48rem; height: 0.48rem; border-radius: 50%; background: #334155; }
.frame-bar strong { margin-left: auto; color: #64748b; font-size: 0.66rem; font-weight: 700; }
.signal-card { position: absolute; z-index: 3; min-width: 11rem; border: 1px solid rgb(148 163 184 / 0.25); border-radius: 1rem; background: rgb(15 23 42 / 0.93); padding: 0.8rem 1rem; box-shadow: 0 1.5rem 3rem rgb(0 0 0 / 0.35); backdrop-filter: blur(14px); }
.signal-card span { display: block; margin-bottom: 0.2rem; color: var(--cyan); font-size: 0.65rem; font-weight: 850; letter-spacing: 0.12em; text-transform: uppercase; }
.signal-card strong { font-size: 0.85rem; }
.signal-card-top { top: -2.2rem; right: -1rem; }
.signal-card-bottom { bottom: -2rem; left: -1.8rem; }

.principle-band {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: 2rem;
  width: min(100% - 3rem, 1240px);
  margin: 0 auto;
  border-block: 1px solid var(--line);
  padding: 2rem 0;
}
.principle-band p { margin: 0; color: var(--muted); }
.principle-band strong { font-size: clamp(1.3rem, 2.2vw, 2rem); letter-spacing: -0.03em; }

.section { width: min(100% - 3rem, 1240px); margin: 0 auto; padding: 8rem 0; }
.section-heading { max-width: 52rem; margin-bottom: 3.5rem; }
.section-heading.compact { max-width: 48rem; }
.section-heading h2, .release-copy h2, .architecture-card h2 {
  margin-bottom: 1.4rem;
  font-size: clamp(2.5rem, 4.5vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.055em;
}
.section-heading > p:last-child, .release-copy > p:last-child { color: #aebdd0; font-size: 1.05rem; line-height: 1.75; }

.skill-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.8rem; margin: 0; padding: 0; list-style: none; }
.skill-card { position: relative; min-height: 18rem; overflow: hidden; border: 1px solid var(--line); border-radius: 1.25rem; background: linear-gradient(150deg, rgb(17 29 52 / 0.95), rgb(8 15 32 / 0.95)); padding: 1.4rem; }
.skill-card::after { content: ""; position: absolute; right: -3rem; bottom: -4rem; width: 9rem; height: 9rem; border-radius: 50%; background: rgb(19 191 242 / 0.08); filter: blur(1rem); }
.skill-number { color: #60708a; font-size: 0.72rem; font-weight: 900; letter-spacing: 0.14em; }
.skill-icon { display: grid; width: 4rem; height: 4rem; margin: 3rem 0 1.5rem; place-items: center; border: 1px solid rgb(19 191 242 / 0.32); border-radius: 1.1rem; background: rgb(19 191 242 / 0.09); color: var(--cyan); font-size: 1.1rem; font-weight: 950; }
.image-icon::before { content: ""; width: 1.8rem; height: 1.4rem; border: 2px solid currentColor; border-radius: 0.3rem; background: linear-gradient(145deg, transparent 48%, currentColor 49% 55%, transparent 56%); }
.sound-icon { letter-spacing: -0.18em; }
.skill-card h3 { margin-bottom: 0.7rem; font-size: 1.15rem; }
.skill-card p { color: var(--muted); font-size: 0.88rem; line-height: 1.6; }

.retry-story { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 4rem; align-items: center; margin-top: 5rem; border: 1px solid var(--line); border-radius: 1.6rem; background: rgb(15 23 42 / 0.67); padding: clamp(1.5rem, 4vw, 3.8rem); }
.retry-copy h3 { margin-bottom: 1rem; font-size: clamp(2rem, 3vw, 3rem); letter-spacing: -0.04em; }
.retry-copy p:last-child { color: var(--muted); line-height: 1.7; }
.retry-diagram { display: grid; grid-template-columns: repeat(7, auto); align-items: center; gap: 0.65rem; }
.retry-node { min-width: 7rem; border: 1px solid #334155; border-radius: 0.9rem; background: #0b1328; padding: 0.8rem; }
.retry-node span { display: block; color: var(--muted); font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.1em; }
.retry-node strong { display: block; margin-top: 0.2rem; font-size: 0.9rem; }
.error-node { border-color: rgb(251 113 133 / 0.55); }
.error-node span { color: var(--coral); }
.return-node { border-color: rgb(19 191 242 / 0.65); box-shadow: 0 0 1.5rem rgb(19 191 242 / 0.12); }
.return-node span { color: var(--cyan); }
.retry-line { display: flex; gap: 0.25rem; }
.retry-line i { width: 0.28rem; height: 0.28rem; border-radius: 50%; background: #475569; }

.product-section { padding-top: 5rem; }
.gallery { display: grid; grid-template-columns: 15rem 1fr; gap: 1.5rem; align-items: start; }
.gallery-tabs { display: grid; gap: 0.65rem; }
.gallery-tabs button { min-height: 3.4rem; border: 1px solid var(--line); border-radius: 0.9rem; background: transparent; color: #aebdd0; padding: 0.8rem 1rem; text-align: left; font: inherit; font-size: 0.9rem; font-weight: 750; cursor: pointer; }
.gallery-tabs button:hover, .gallery-tabs button.is-active { border-color: var(--cyan); background: rgb(19 191 242 / 0.09); color: white; }
.gallery-frame img { width: 100%; }

.architecture-section { display: grid; grid-template-columns: 1.3fr 0.7fr; gap: 1rem; padding-top: 3rem; }
.architecture-card, .claude-card { border: 1px solid var(--line); border-radius: 1.5rem; padding: clamp(1.6rem, 4vw, 3.2rem); }
.architecture-card { background: linear-gradient(140deg, #101c33, #0a1225); }
.architecture-card h2 { font-size: clamp(2.2rem, 3.8vw, 3.7rem); }
.architecture-card ul { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 3rem 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.architecture-card li { display: grid; gap: 0.35rem; padding: 1.1rem 1rem 1.1rem 0; border-bottom: 1px solid var(--line); }
.architecture-card li:nth-child(odd) { border-right: 1px solid var(--line); }
.architecture-card li:nth-child(even) { padding-left: 1rem; }
.architecture-card li span { color: var(--muted); font-size: 0.8rem; line-height: 1.5; }
.claude-card { align-self: stretch; background: linear-gradient(160deg, rgb(139 92 246 / 0.18), rgb(15 23 42 / 0.9)); }
.claude-card h3 { margin-top: 4rem; font-size: 2rem; letter-spacing: -0.04em; }
.claude-card > p:not(.eyebrow) { color: #bdc8d8; line-height: 1.7; }
.roadmap-label { display: inline-block; margin-top: 1.5rem; border: 1px solid rgb(139 92 246 / 0.45); border-radius: 99rem; padding: 0.45rem 0.7rem; color: #d8ccff; font-size: 0.7rem; }

.release-section { display: grid; grid-template-columns: 1fr 0.8fr; gap: 4rem; align-items: center; width: min(100% - 3rem, 1240px); margin: 4rem auto 0; border: 1px solid rgb(19 191 242 / 0.34); border-radius: 1.7rem; background: linear-gradient(130deg, rgb(13 55 78 / 0.88), rgb(27 20 63 / 0.9)); padding: clamp(2rem, 5vw, 5rem); }
.release-copy h2 { font-size: clamp(2.4rem, 4vw, 4rem); }
.release-actions { display: grid; gap: 1rem; justify-items: stretch; }
.release-actions .button { text-align: center; }
.text-link { color: var(--cyan-soft); font-size: 0.9rem; font-weight: 750; text-align: center; }
.release-actions small { color: var(--muted); text-align: center; }
[aria-disabled="true"] { cursor: default; }

footer { display: flex; justify-content: space-between; align-items: center; gap: 2rem; width: min(100% - 3rem, 1240px); margin: 6rem auto 0; border-top: 1px solid var(--line); padding: 2rem 0 3rem; color: var(--muted); font-size: 0.82rem; }
footer .brand { color: white; }

.reveal { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .site-header nav a:not(.nav-cta) { display: none; }
  .hero { grid-template-columns: 1fr; gap: 5rem; padding-top: 4.5rem; }
  .hero-copy { max-width: 44rem; }
  .skill-grid { grid-template-columns: 1fr 1fr; }
  .retry-story, .architecture-section, .release-section { grid-template-columns: 1fr; }
  .retry-diagram { overflow-x: auto; padding-bottom: 0.5rem; }
  .gallery { grid-template-columns: 1fr; }
  .gallery-tabs { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 640px) {
  .site-header, .hero, .section, .principle-band, .release-section, footer { width: min(100% - 2rem, 1240px); }
  .site-header { padding-block: 0.8rem; }
  .site-header nav { display: none; }
  .alpha-pill { display: none; }
  .hero { min-height: auto; padding: 4rem 0; }
  h1 { font-size: clamp(3rem, 15vw, 4.5rem); }
  .hero-actions .button { width: 100%; }
  .signal-card { display: none; }
  .app-frame { transform: none; }
  .principle-band { grid-template-columns: 1fr; }
  .section { padding-block: 5.5rem; }
  .skill-grid { grid-template-columns: 1fr; }
  .skill-card { min-height: 14rem; }
  .skill-icon { margin-top: 2rem; }
  .gallery-tabs { grid-template-columns: 1fr; }
  .architecture-card ul { grid-template-columns: 1fr; }
  .architecture-card li:nth-child(odd) { border-right: 0; }
  .architecture-card li:nth-child(even) { padding-left: 0; }
  footer { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}