:root {
  --bg: #0a0f14;
  --bg-alt: #0f1720;
  --surface: #121821;
  --surface-strong: #17202b;
  --surface-overlay: rgba(18, 24, 33, 0.82);
  --accent: #4fc3f7;
  --accent-strong: #8adfff;
  --accent-soft: rgba(79, 195, 247, 0.12);
  --text-primary: #eaf2f8;
  --text-secondary: #9fb3c8;
  --line: rgba(159, 179, 200, 0.14);
  --line-strong: rgba(159, 179, 200, 0.22);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-pill: 999px;
  --container: min(1160px, calc(100vw - 40px));
  --font-body: 'Manrope', 'Segoe UI', sans-serif;
  --font-heading: 'Space Grotesk', 'Segoe UI', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at top right, rgba(79, 195, 247, 0.18), transparent 28%),
    radial-gradient(circle at 20% 24%, rgba(79, 195, 247, 0.08), transparent 34%),
    linear-gradient(180deg, #0d141b 0%, var(--bg) 48%, #0a0f14 100%);
  color: var(--text-primary);
  font-family: var(--font-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 88%);
}

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

img {
  display: block;
  max-width: 100%;
}

code {
  padding: 0.18rem 0.42rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  font-size: 0.92em;
}

.page-shell {
  position: relative;
  overflow: clip;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.section {
  position: relative;
  padding: 108px 0;
}

.section--hero {
  padding-top: 156px;
  padding-bottom: 120px;
}

.section--cta {
  padding-top: 32px;
  padding-bottom: 120px;
}

.surface {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.026), rgba(255, 255, 255, 0)),
    var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding-top: 18px;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(10, 15, 20, 0.68);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 42px rgba(0, 0, 0, 0.2);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.site-nav a {
  transition: color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text-primary);
}

.site-nav__cta {
  padding: 10px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.025);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-lockup__image {
  height: 34px;
  width: auto;
}

.brand-lockup__fallback {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-lockup__mark {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--accent-strong), var(--accent));
  box-shadow: 0 0 24px rgba(79, 195, 247, 0.34);
}

.brand-lockup__word {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: 0.26em;
  text-transform: lowercase;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 32px;
  align-items: stretch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow--muted {
  color: var(--text-secondary);
}

.eyebrow__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(79, 195, 247, 0.45);
}

.hero h1,
.section-heading h2,
.cta-card h2,
.error-page h1,
.hero-panel h2 {
  margin: 0;
  font-family: var(--font-heading);
  letter-spacing: -0.04em;
}

.hero h1 {
  margin-top: 22px;
  max-width: 11ch;
  font-size: clamp(3.3rem, 7vw, 5.4rem);
  line-height: 0.95;
}

.hero__lead,
.section-heading p,
.cta-card p,
.detail-card p,
.feature-block p,
.architecture-card p,
.site-footer__copy,
.stack-card p,
.point-card p,
.error-page p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.72;
}

.hero__lead {
  margin-top: 24px;
  max-width: 58ch;
  font-size: 1.08rem;
}

.hero__actions,
.cta-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 20px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button--primary {
  background: linear-gradient(180deg, var(--accent-strong), var(--accent));
  color: #081018;
}

.button--secondary {
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.025);
  color: var(--text-primary);
}

.hero__points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 38px;
}

.point-card,
.stack-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
}

.point-card span,
.stack-card__label,
.architecture-card span {
  display: inline-flex;
  align-items: center;
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-panel {
  padding: 28px;
}

.hero-panel__header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}

.hero-panel__eyebrow {
  margin: 0 0 8px;
  color: var(--text-secondary);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-panel__status {
  margin: 0;
  padding: 10px 14px;
  border: 1px solid rgba(79, 195, 247, 0.2);
  border-radius: var(--radius-pill);
  background: var(--accent-soft);
  color: var(--text-primary);
  font-size: 0.92rem;
  text-align: right;
}

.hero-panel__stack {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.stack-card strong,
.feature-block h3,
.detail-card h3,
.architecture-card h3,
.error-page h1 {
  display: block;
  margin-bottom: 10px;
  font-size: 1.18rem;
  line-height: 1.25;
}

.section-heading {
  max-width: 760px;
}

.section-heading h2 {
  margin-top: 18px;
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  line-height: 1.02;
}

.section-heading p {
  margin-top: 18px;
  max-width: 60ch;
}

.vision-grid,
.feature-grid,
.architecture-grid {
  display: grid;
  gap: 18px;
  margin-top: 32px;
}

.vision-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.architecture-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-block,
.detail-card,
.architecture-card,
.cta-card,
.error-page__card {
  padding: 28px;
}

.feature-block__index {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.cta-card {
  display: grid;
  gap: 18px;
  align-items: flex-start;
}

.site-footer {
  padding: 0 0 42px;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.brand-lockup--footer {
  margin-bottom: 12px;
}

.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.error-page {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 32px 20px;
}

.error-page__card {
  width: min(560px, 100%);
}

.error-page .brand-lockup {
  margin-bottom: 28px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 620ms ease,
    transform 720ms cubic-bezier(0.2, 0.85, 0.2, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero__grid,
  .vision-grid,
  .architecture-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero__points {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 780px) {
  .section {
    padding: 92px 0;
  }

  .section--hero {
    padding-top: 134px;
  }

  .site-header {
    padding-top: 14px;
  }

  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    flex-wrap: wrap;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .button,
  .site-nav__cta {
    width: 100%;
  }

  .hero__actions,
  .cta-card__actions {
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100vw - 28px, 100%);
  }

  .feature-block,
  .detail-card,
  .architecture-card,
  .cta-card,
  .hero-panel,
  .error-page__card {
    padding: 22px;
  }

  .hero h1 {
    max-width: 10ch;
  }
}