:root {
  color-scheme: dark light;
  --bg: #0b0d0f;
  --bg-raised: #14171a;
  --fg: #e6e6e6;
  --fg-dim: #9aa0a6;
  --accent: #55e07a;
  --border: #262b2f;
  --code-bg: #1a1d20;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f7f8;
    --bg-raised: #ffffff;
    --fg: #1c1e21;
    --fg-dim: #5b6068;
    --accent: #0a8f3c;
    --border: #e2e4e7;
    --code-bg: #eef0f2;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  line-height: 1.5;
}

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

code, kbd {
  font-family: var(--font-mono);
  background: var(--code-bg);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.site-header .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.logo {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.1rem;
}
.gh-link {
  color: var(--fg-dim);
  text-decoration: none;
  font-size: 0.9rem;
}
.gh-link:hover { color: var(--accent); }

/* Hero */
.hero {
  padding: 72px 0 48px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
.pitch {
  color: var(--fg-dim);
  font-size: 1.15rem;
  max-width: 640px;
  margin: 0 auto 32px;
}
.cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #06210f;
  font-weight: 600;
  font-family: var(--font-mono);
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 1.05rem;
}
.btn-primary:hover { filter: brightness(1.08); }
.req {
  color: var(--fg-dim);
  font-size: 0.85rem;
}
.notice {
  max-width: 560px;
  margin: 32px auto 0;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-raised);
  color: var(--fg-dim);
  font-size: 0.9rem;
  text-align: left;
}

/* Features */
.features { padding: 48px 0; }
.features h2, .screenshots h2 {
  font-size: 1.6rem;
  margin-bottom: 24px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}
.card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}
.card p {
  margin: 0;
  color: var(--fg-dim);
  font-size: 0.95rem;
}

/* Screenshots */
.screenshots { padding: 0 0 64px; }
.shot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.shot-placeholder {
  aspect-ratio: 16 / 10;
  border: 1px dashed var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-dim);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--code-bg);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--fg-dim);
  font-size: 0.85rem;
}
.site-footer nav a {
  color: var(--fg-dim);
  text-decoration: none;
  margin-left: 16px;
}
.site-footer nav a:hover { color: var(--accent); }