:root {
  --bg: #0d1117;
  --fg: #e6edf3;
  --fg-muted: #8b949e;
  --primary: #2f81f7;
  --primary-hover: #1f6feb;
  --disabled: #30363d;
  --beta: #f0883e;
  --beta-strong: #db6d28;
  --beta-bg: rgba(240, 136, 62, 0.08);
  --beta-border: rgba(240, 136, 62, 0.4);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg); color: var(--fg); min-height: 100vh;
  display: grid; place-items: center;
}
.container { max-width: 640px; padding: 4rem 2rem; text-align: center; }
h1 { font-size: 4rem; font-weight: 700; margin-bottom: 0.5rem; }
.tagline { font-size: 1.25rem; color: var(--fg-muted); margin-bottom: 3rem; }
.downloads { display: flex; gap: 1rem; justify-content: center; margin-bottom: 3rem; flex-wrap: wrap; }
.btn { padding: 0.75rem 1.5rem; border-radius: 8px; font-weight: 600;
  text-decoration: none; border: none; cursor: pointer; font-size: 1rem; transition: background 0.15s; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-disabled { background: var(--disabled); color: var(--fg-muted); cursor: not-allowed; }
.btn-sub { font-weight: 400; opacity: 0.75; font-size: 0.85em; }

/* --- BETA MODE quarantine callout (orange) --- */
.beta-callout {
  text-align: left; background: var(--beta-bg);
  border: 1px solid var(--beta-border); border-left: 4px solid var(--beta);
  padding: 1.25rem 1.5rem; border-radius: 10px; margin: 0 auto 2rem; max-width: 560px;
}
.beta-head { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.6rem; }
.beta-badge {
  background: var(--beta); color: #1a1200; font-weight: 800; font-size: 0.7rem;
  letter-spacing: 0.06em; padding: 3px 8px; border-radius: 5px; text-transform: uppercase;
}
.beta-title { font-weight: 700; color: var(--beta); font-size: 1rem; }
.beta-desc { color: var(--fg); font-size: 0.9rem; line-height: 1.6; margin-bottom: 0.9rem; }
.beta-desc strong { color: var(--fg); }
.beta-cmd {
  display: flex; align-items: stretch; gap: 0.5rem;
  background: #010409; border: 1px solid var(--beta-border); border-radius: 8px;
  padding: 0.6rem 0.75rem;
}
.beta-cmd code {
  flex: 1; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.82rem;
  color: #ffd9b3; white-space: pre-wrap; word-break: break-all; line-height: 1.5;
  align-self: center;
}
.beta-copy {
  flex-shrink: 0; background: var(--beta); color: #1a1200; border: none; cursor: pointer;
  font-weight: 700; font-size: 0.8rem; padding: 0 0.9rem; border-radius: 6px;
  transition: background 0.15s;
}
.beta-copy:hover { background: var(--beta-strong); }
.beta-copy.copied { background: #3fb950; color: #04140a; }
.beta-note { color: var(--fg-muted); font-size: 0.78rem; margin-top: 0.7rem; line-height: 1.5; }
footer { color: var(--fg-muted); font-size: 0.875rem; }
footer a { color: var(--primary); text-decoration: none; }
footer a:hover { text-decoration: underline; }