:root {
  --bg: #0b0d11;
  --bg-alt: #11161c;
  --panel: #141a20;
  --panel-strong: #1a2128;
  --border: rgba(255, 255, 255, 0.08);
  --text: #edf2f7;
  --muted: #a8b1bc;
  --muted-strong: #dfe7f2;
  --accent: #c94444;
  --accent-strong: #de6868;
  --accent-soft: rgba(201, 68, 68, 0.15);
  --shadow: rgba(0, 0, 0, 0.35);
  --max-width: 1180px;
  --header-height: 70px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

article, section {
  scroll-margin-top: calc(var(--header-height) - 1em);
}

.hero {
  scroll-margin-top: calc(var(--header-height) + 2em);
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--accent);
  color: white;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  z-index: 100;
}

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

.container {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(11, 13, 17, 0.72);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.brand img {
  width: 30px;
  height: 30px;
  border-radius: 8px;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.primary-nav a {
  color: var(--muted);
  font-size: 0.96rem;
  transition: color 0.2s ease;
}

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

.docs-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.docs-link svg {
  width: 0.9rem;
  height: 0.9rem;
  fill: currentColor;
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
  gap: 3rem;
  padding: 4rem 0 4rem;
}

@media (min-width: 901px) {
  .hero {
    min-height: calc(100svh - var(--header-height));
  }
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent-strong);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(2.9rem, 6vw, 5.3rem);
  line-height: 0.92;
  letter-spacing: -0.06em;
}

.hero-copy h1 br {
  display: block;
}

.lead {
  margin-top: 1.4rem;
  max-width: 36rem;
  font-size: 1.1rem;
  color: var(--muted-strong);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.2rem;
  padding: 0.8rem 1.3rem;
  border-radius: 0.8rem;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.button.primary {
  background: linear-gradient(180deg, var(--accent) 0%, #9b2b2b 100%);
  box-shadow: 0 12px 30px rgba(201, 68, 68, 0.28);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.2rem;
  margin: 1.8rem 0 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-meta li {
  position: relative;
  margin-left: 3px;
  padding-left: 3px;
}

.hero-meta li::marker {
  color: var(--accent-strong);
}

.hero-meta li:first-child {
  list-style: none;
  margin-left: 0;
  padding-left: 0;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.video-shell,
.sharing-video {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
  box-shadow: 0 24px 60px var(--shadow);
}

.video-shell {
  width: min(100%, 620px);
}

.video-shell video,
.sharing-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #090b10;
}

.features,
.download {
  padding: 2rem 0;
}

.section-heading {
  margin-bottom: 2rem;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.1;
  letter-spacing: -0.05em;
  max-width: 20ch;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
}

.feature-card {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 1rem;
  min-height: 100%;
}

.icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 0.75rem;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 700;
  margin-bottom: 1rem;
}

.feature-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.2rem;
  line-height: 1.3;
}

.feature-card p,
.detail-copy p,
.download-card p {
  margin: 0;
  color: var(--muted);
}

.detail-panel {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 2rem;
  padding: 2rem;
  border-radius: 1.35rem;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.015);
}

.detail-copy h3 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 3vw, 2.8rem);
  line-height: 1.08;
  letter-spacing: -0.05em;
}

.detail-copy p + p {
  margin-top: 1rem;
}

.input-visual {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  min-height: 240px;
}

.device-badge {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 4.25rem 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  color: var(--muted-strong);
  font-weight: 600;
  position: relative;
  min-height: 120px;
  line-height: 1.2;
}

.device-badge::before {
  position: absolute;
  top: 1.3rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: clamp(2rem, 3vw, 3.1rem);
  opacity: 0.9;
  filter: grayscale(1) brightness(0.92);
}

.device-badge.mouse::before {
  content: "🖱️";
}

.device-badge.keyboard::before {
  content: "⌨️";
}

.device-badge.gamepad::before {
  content: "🎮";
}

.device-badge.touch::before {
  content: "🦶";
}

.sharing-video {
  width: min(100%, 480px);
  justify-self: end;
  aspect-ratio: 9 / 16;
}

.compact-sections {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  padding: 1rem 0 4rem;
}

.compact-panel {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  padding: 1.75rem;
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  background: linear-gradient(135deg, rgba(201, 68, 68, 0.08), rgba(255, 255, 255, 0.015));
}

.about-panel {
  background: rgba(255, 255, 255, 0.015);
}

.compact-mark {
  display: flex;
  flex: 0 0 3rem;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border: 1px solid rgba(222, 104, 104, 0.35);
  border-radius: 0.85rem;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 1.35rem;
  font-weight: 800;
}

.compact-copy h2 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.5rem, 2.5vw, 2.1rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.compact-copy p {
  margin: 0;
  color: var(--muted);
}

.compact-copy p + p {
  margin-top: 0.75rem;
}

.text-link {
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
  color: var(--muted-strong);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 0.18em;
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--accent-strong);
}

.placeholder-note {
  font-size: 0.9rem;
  color: var(--muted) !important;
  font-style: italic;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.download-card {
  padding: 1.6rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}

.license-card {
  grid-column: 1 / -1;
}

.download-card h3 {
  margin: 0 0 1rem;
  font-size: 1.5rem;
}

.download-card ul {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
  color: var(--muted-strong);
}

.download-card li + li {
  margin-top: 0.65rem;
}

.download-card a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.3);
  text-underline-offset: 0.18em;
}

.site-footer {
  position: relative;
  padding: 1.3rem 0 1.3rem;
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.01);
  line-height: 1.25;
}

.praetorian {
  position: absolute;
  right: 18px;
  bottom: 12px;
  z-index: 11;
  padding: 0;
  border: 0;
  background: transparent;
  color: rgba(237, 242, 247, 0.14);
  font: inherit;
  font-size: 10px;
  line-height: 1;
  cursor: default;
}

.praetorian:hover,
.praetorian:focus-visible {
  color: rgba(237, 242, 247, 0.5);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1.3fr;
  align-items: center;
  gap: 1rem 2rem;
  color: var(--muted);
}

.footer-column {
  display: flex;
  align-items: center;
}

.footer-copy {
  justify-content: flex-start;
}

.footer-brand {
  justify-content: center;
  text-align: center;
  font-size: 0.98rem;
}

.footer-brand .heart {
  color: var(--accent-strong);
  display: inline-block;
  transform: translateY(-1px);
}

.footer-meta {
  align-items: end;
  display: flex;
  flex-direction: column;
}

.footer-inner p {
  margin: 0;
}

.footer-meta sub {
  font-size: xx-small;
}

@media (max-width: 900px) {
  .hero,
  .detail-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

  .sharing-video {
    justify-self: stretch;
    width: 100%;
    max-width: 420px;
  }

  .compact-sections {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-wrap {
    padding-top: 0.85rem;
    padding-bottom: 0.85rem;
    align-items: flex-start;
    flex-direction: column;
  }

  .primary-nav {
    gap: 0.8rem 1rem;
  }

  .hero {
    padding-top: 4rem;
  }

  .feature-grid,
  .download-grid,
  .input-visual {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-copy,
  .footer-brand,
  .footer-meta {
    justify-content: center;
    text-align: center;
  }

  .button {
    width: 100%;
  }

  .cta-row {
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}