:root {
  --accent: #e95420;
  --secondary: #0e8420;
  --accent-hover: #ff6a35;
  --secondary-hover: #095615;
  --bg: #242424;
  --bg-card: #2f2f2f;
  --bg-elevated: #3e3e3e;
  --border: #ffffff1a;
  --text: #fafafa;
  --text-muted: #b5b5b5;
  --accent-soft: rgba(233, 84, 32, 0.14);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", sans-serif;
  background:
    radial-gradient(1200px 620px at 50% -140px, var(--accent-soft), transparent 75%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: #242424d9;
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 18px;
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px;
  gap: 2px;
}

.lang-toggle button {
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-radius: 999px;
  padding: 5px 12px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.lang-toggle button:hover {
  color: var(--text);
}

.lang-toggle button[aria-pressed="true"] {
  background: var(--accent);
  color: #fff;
}

.github-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: background 0.2s, border-color 0.2s;
}

.github-link:hover {
  background: var(--bg-elevated);
  border-color: #ffffff33;
}

.hero {
  padding-top: 72px;
  text-align: center;
  margin-bottom: 32px;
}

.version {
  display: inline-block;
  font-size: 13px;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 14px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(40px, 7vw, 64px);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.hero h1::after {
  content: "";
  display: block;
  width: 72px;
  height: 5px;
  border-radius: 3px;
  background: var(--accent);
  margin: 18px auto 0;
}

.tagline {
  max-width: 640px;
  margin: 20px auto 32px;
  color: var(--text-muted);
  font-size: 18px;
}

.cta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 56px;
}

.button {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-weight: 600;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.button:hover {
  background: var(--bg-elevated);
  border-color: #ffffff33;
}

.button.secondary {
  background: var(--secondary);
  border-color: var(--secondary);
  color: #fff;
}

.button.secondary:hover {
  background: var(--secondary-hover);
  border-color: var(--secondary-hover);
  color: #fff;
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.button.primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.content {
  padding: 16px;
  max-width: 920px;
  margin: 0 auto;
}

.shot img {
  display: block;
  height: auto;
  max-width: 100%;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}

.feature h2 {
  font-size: 17px;
  margin-bottom: 8px;
}

.feature h2::before {
  content: "";
  display: block;
  width: 28px;
  height: 3px;
  border-radius: 2px;
  background: var(--accent);
  margin-bottom: 12px;
}

.feature p {
  color: var(--text-muted);
  font-size: 15px;
}

.gallery {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  margin: 32px auto 32px;
}

.gallery img {
  display: block;
  width: 100%;
}

.platforms {
  text-align: center;
}

.platforms h2 {
  font-size: 24px;
  margin-bottom: 24px;
}

.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.platform {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 256px;
  margin: 0 auto;
}

.platform .os {
  font-weight: 600;
  font-size: 17px;
}

.platform .format {
  color: var(--text-muted);
  font-size: 14px;
}

.footer {
  margin-top: 80px;
  border-top: 1px solid var(--border);
  padding: 28px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

.footer a {
  color: var(--accent);
}

.footer a:hover {
  text-decoration: underline;
}

@media (max-width: 600px) {
  .hero {
    padding-top: 48px;
  }

  .github-link__text {
    display: none;
  }

  .header-inner {
    padding: 14px 16px;
  }

  .brand {
    font-size: 16px;
  }
}