:root {
  --ink: #0a0e12;
  --panel: #121820;
  --line: #243040;
  --fog: #9db0c0;
  --paper: #e8eef4;
  --phosphor: #5ec4a8;
  --phosphor-ink: #06241c;
  --tungsten: #c4a574;
  --display: "Cabin Sketch", "Segoe UI", sans-serif;
  --body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --code: "JetBrains Mono", ui-monospace, monospace;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  color-scheme: dark;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--body);
  font-size: 1.125rem;
  line-height: 1.55;
  color: var(--paper);
  background:
    radial-gradient(1200px 600px at 70% 20%, rgba(94, 196, 168, 0.08), transparent 55%),
    linear-gradient(165deg, #0d141c 0%, var(--ink) 45%, #070a0e 100%);
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: color-mix(in srgb, var(--phosphor) 45%, transparent);
  color: var(--paper);
}

:focus-visible {
  outline: 2px solid var(--tungsten);
  outline-offset: 3px;
}

a {
  color: var(--phosphor);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: color-mix(in srgb, var(--phosphor) 80%, white);
}

code {
  font-family: var(--code);
  font-size: 0.92em;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  padding: 0.5rem 0.75rem;
  background: var(--phosphor);
  color: var(--phosphor-ink);
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem clamp(1.25rem, 4vw, 2.5rem);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  color: var(--paper);
  text-decoration: none;
}

.wordmark-img {
  display: block;
  height: 1.75rem;
  width: auto;
}

.wordmark-img--footer {
  height: 1.25rem;
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--fog);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--paper);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  padding: clamp(5.5rem, 12vh, 7rem) clamp(1.25rem, 4vw, 2.5rem)
    clamp(2rem, 6vh, 3.5rem);
  overflow: clip;
}

.hero-plane {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.milume-hero {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: #05100f;
}

.milume-hero__canvas,
.milume-hero__poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: none;
}

.milume-hero[data-hero-mode="webgl"] .milume-hero__canvas {
  display: block;
}

.milume-hero[data-hero-mode="poster"] .milume-hero__poster {
  display: block;
  object-fit: cover;
  object-position: center center;
}

.promo-montage {
  padding: 0 clamp(1.25rem, 4vw, 2.5rem) 2.5rem;
  background: linear-gradient(180deg, transparent 0%, rgba(7, 10, 14, 0.85) 12%);
}

.promo-montage__video {
  display: block;
  width: min(100%, 72rem);
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #0b0b0b;
}

.hero-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 14, 18, 0.92) 0%, rgba(10, 14, 18, 0.72) 42%, rgba(10, 14, 18, 0.35) 70%, rgba(10, 14, 18, 0.55) 100%),
    linear-gradient(0deg, rgba(10, 14, 18, 0.85) 0%, transparent 42%);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 38rem;
  animation: copy-rise 0.9s var(--ease-out) 0.12s both;
}

.brand {
  margin: 0 0 0.85rem;
}

.brand-wordmark {
  display: block;
  width: min(72vw, 18rem);
  height: auto;
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 28ch;
}

.lede {
  margin: 0 0 1.75rem;
  color: var(--fog);
  max-width: 42ch;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.install {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 85%, black);
  overflow: hidden;
}

.install code {
  display: block;
  padding: 0.7rem 0.95rem;
  color: var(--paper);
  white-space: nowrap;
}

.copy-btn,
.btn {
  appearance: none;
  border: 0;
  font: inherit;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 1.1rem;
  transition: background-color 160ms var(--ease-out), color 160ms var(--ease-out),
    border-color 160ms var(--ease-out);
}

.copy-btn {
  border-left: 1px solid var(--line);
  background: transparent;
  color: var(--fog);
}

.copy-btn:hover,
.copy-btn[data-copied="true"] {
  background: color-mix(in srgb, var(--phosphor) 18%, transparent);
  color: var(--paper);
}

.btn-primary {
  background: var(--phosphor);
  color: var(--phosphor-ink);
  font-weight: 600;
}

.btn-primary:hover {
  background: color-mix(in srgb, var(--phosphor) 82%, white);
  color: var(--phosphor-ink);
}

.btn-ghost {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--paper);
}

.btn-ghost:hover {
  border-color: color-mix(in srgb, var(--phosphor) 45%, var(--line));
  color: var(--phosphor);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem clamp(1.25rem, 4vw, 2.5rem) 2rem;
  color: var(--fog);
  font-size: 0.95rem;
}

@keyframes copy-rise {
  from {
    opacity: 0;
    filter: blur(6px);
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .hero {
    align-items: end;
  }

  .milume-hero[data-hero-mode="poster"] .milume-hero__poster {
    object-position: 70% center;
  }

  .hero-veil {
    background:
      linear-gradient(180deg, rgba(10, 14, 18, 0.55) 0%, rgba(10, 14, 18, 0.82) 45%, rgba(10, 14, 18, 0.96) 100%);
  }

  .install {
    width: 100%;
  }

  .install code {
    flex: 1;
    overflow-x: auto;
  }

  .cta-group .btn {
    flex: 1 1 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero-copy,
  .milume-hero__canvas,
  .copy-btn,
  .btn {
    animation: none !important;
    transition: none !important;
    filter: none !important;
    transform: none !important;
  }
}