@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Space+Grotesk:wght@400;500;700&display=swap");

:root {
  --bg: #07111f;
  --bg-elevated: rgba(8, 21, 38, 0.88);
  --bg-panel: rgba(11, 27, 46, 0.78);
  --bg-panel-strong: rgba(10, 22, 39, 0.95);
  --line: rgba(109, 201, 255, 0.22);
  --line-strong: rgba(109, 201, 255, 0.45);
  --text: #eff7ff;
  --text-muted: #9eb3c8;
  --teal: #7df9d1;
  --cyan: #6dc9ff;
  --amber: #f7b955;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(109, 201, 255, 0.18), transparent 32%),
    radial-gradient(circle at top right, rgba(125, 249, 209, 0.12), transparent 26%),
    linear-gradient(180deg, #07111f 0%, #050c16 100%);
  color: var(--text);
  font-family: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(109, 201, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(109, 201, 255, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  content: "";
  pointer-events: none;
}

a {
  color: inherit;
}

code,
pre {
  font-family: "IBM Plex Mono", "SFMono-Regular", ui-monospace, monospace;
}

.page-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 4rem;
}

.route-container {
  min-height: 100vh;
}

.route-container {
  overflow: hidden !important;
}

.route-content {
  width: 100%;
}

.route-content.from {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.route-content.to {
  position: relative;
  z-index: 1;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 0.9rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid rgba(125, 249, 209, 0.45);
  border-radius: 0.9rem;
  background:
    linear-gradient(135deg, rgba(125, 249, 209, 0.22), rgba(109, 201, 255, 0.24)),
    rgba(9, 23, 39, 0.95);
  color: var(--teal);
  font-family: "IBM Plex Mono", monospace;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.brand-kicker {
  color: var(--text-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.header-cluster {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-pill,
.locale-switcher {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem;
  background: rgba(6, 16, 28, 0.76);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.nav-link,
.locale-link,
.button-link,
.back-pill {
  text-decoration: none;
}

.nav-link,
.locale-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 0.92rem;
  transition:
    transform 120ms ease,
    background-color 120ms ease,
    color 120ms ease,
    border-color 120ms ease;
}

.nav-link:hover,
.locale-link:hover,
.button-link:hover,
.demo-card:hover,
.back-pill:hover {
  transform: translate3d(0, calc(var(--motion-y, 0px) - 1px), 0) scale(var(--motion-scale, 1));
}

.nav-link.is-active,
.locale-link.is-active {
  background: linear-gradient(135deg, rgba(125, 249, 209, 0.18), rgba(109, 201, 255, 0.12));
  color: var(--text);
  box-shadow: inset 0 0 0 1px rgba(125, 249, 209, 0.22);
}

.locale-label {
  color: var(--text-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0 0.5rem 0 0.7rem;
}

.hero {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.85fr);
  gap: 1.5rem;
  margin-bottom: 1.75rem;
  padding: 2rem;
  background:
    radial-gradient(circle at top right, rgba(125, 249, 209, 0.18), transparent 35%),
    linear-gradient(135deg, rgba(8, 19, 33, 0.96), rgba(8, 17, 31, 0.82));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero::after {
  position: absolute;
  inset: auto -5% -25% auto;
  width: 14rem;
  height: 14rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(109, 201, 255, 0.18), transparent 70%);
  content: "";
}

.eyebrow {
  color: var(--cyan);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.hero h1,
.section-title,
.demo-card h2,
.loader-title {
  margin: 0;
  line-height: 1.05;
}

.hero h1 {
  max-width: 12ch;
  margin-top: 0.65rem;
  font-size: clamp(2.8rem, 6vw, 5rem);
}

.hero p,
.section-lead,
.feature-copy,
.card-copy,
.footer-copy,
.loader-copy {
  color: var(--text-muted);
  line-height: 1.7;
}

.hero p {
  max-width: 60ch;
  margin: 1rem 0 1.5rem;
}

.hero-actions {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.button-link,
.back-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.9rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(10, 24, 41, 0.68);
  color: var(--text);
  font-weight: 600;
  transition:
    transform 120ms ease,
    border-color 120ms ease,
    background-color 120ms ease,
    box-shadow 120ms ease;
}

.button-link.primary {
  border-color: rgba(125, 249, 209, 0.4);
  background: linear-gradient(135deg, rgba(125, 249, 209, 0.2), rgba(109, 201, 255, 0.15));
  box-shadow: inset 0 0 0 1px rgba(125, 249, 209, 0.12);
}

.button-link.secondary {
  color: var(--cyan);
}

.motion-reveal {
  opacity: var(--motion-opacity, 1);
  transform: translate3d(0, var(--motion-y, 0px), 0) scale(var(--motion-scale, 1));
  transform-origin: center;
  will-change: opacity, transform;
}

.hero-panel,
.section-panel,
.code-panel,
.demo-card,
.loader-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.hero-panel {
  padding: 1.4rem;
}

.hero-panel h2,
.panel-label,
.footer-label,
.loader-kicker {
  color: var(--amber);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-list {
  display: grid;
  gap: 0.9rem;
}

.hero-list li strong,
.demo-card h2 {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--text);
}

.grid {
  display: grid;
  gap: 1rem;
}

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

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

.stack {
  display: grid;
  gap: 1rem;
}

.section-panel,
.code-panel,
.demo-card,
.loader-card {
  padding: 1.35rem;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
}

.code-panel pre {
  margin: 0;
  padding: 1.1rem;
  overflow-x: auto;
  background: rgba(3, 10, 18, 0.92);
  border: 1px solid rgba(109, 201, 255, 0.14);
  border-radius: var(--radius-md);
  color: #d9f6ff;
  font-size: 0.92rem;
}

.demo-card {
  display: grid;
  gap: 0.9rem;
  text-decoration: none;
  transition:
    transform 140ms ease,
    border-color 140ms ease,
    background-color 140ms ease;
}

.demo-card:hover {
  border-color: var(--line-strong);
  background: var(--bg-panel-strong);
}

.card-label {
  color: var(--teal);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.card-link {
  color: var(--cyan);
  font-weight: 600;
}

.site-footer {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--line);
}

.footer-copy {
  display: grid;
  gap: 0.45rem;
  margin: 0;
}

.footer-text {
  display: block;
}

.footer-link {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.footer-link:hover {
  color: var(--teal);
}

.fullscreen-demo {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

.fullscreen-demo-frame {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  border: 0;
  display: block;
  background: #050b14;
}

.fullscreen-demo canvas,
.fullscreen-demo body > canvas {
  position: fixed;
  inset: 0;
  width: 100vw !important;
  height: 100vh !important;
  margin: 0;
  display: block;
}

.back-pill {
  position: fixed;
  top: 1.25rem;
  left: 1.25rem;
  z-index: 5;
  background: rgba(7, 19, 33, 0.92);
}

.loader-stage {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 6rem 1.25rem 2rem;
}

.loader-card {
  width: min(32rem, 100%);
  text-align: center;
}

.loader-title {
  margin-top: 0.65rem;
  font-size: clamp(2.1rem, 6vw, 3.25rem);
}

.status-line {
  display: none;
  margin: 0.35rem 0 0;
}

#bevy-loader[data-state="loading"] .status-line[data-state="loading"],
#bevy-loader[data-state="error"] .status-line[data-state="error"] {
  display: block;
}

#bevy-loader[data-state="ready"] {
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

@media (max-width: 960px) {
  .hero,
  .grid.columns-3,
  .grid.columns-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 1rem, 1180px);
    padding-top: 0.75rem;
  }

  .page-header {
    align-items: stretch;
    flex-direction: column;
  }

  .header-cluster {
    justify-content: flex-start;
  }

  .nav-pill,
  .locale-switcher {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero,
  .section-panel,
  .code-panel,
  .demo-card,
  .footer-panel {
    border-radius: 22px;
  }

  .hero {
    padding: 1.4rem;
  }

  .hero h1 {
    max-width: none;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .button-link,
  .nav-link,
  .locale-link {
    justify-content: center;
  }

  .back-pill {
    top: 0.9rem;
    left: 0.9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .motion-reveal {
    --motion-opacity: 1 !important;
    --motion-scale: 1 !important;
    --motion-y: 0px !important;
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}