:root{--bg: #fbfaf7;--fg: #1d1d1b;--muted: #5f5e5a;--accent: #2f6f4f;--accent-fg: #ffffff;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--bg: #161615;--fg: #ecebe6;--muted: #a5a39b;--accent: #6fbf94;--accent-fg: #0e1a13}}body{margin:0;background:var(--bg);color:var(--fg)}main{max-width:40rem;margin:0 auto;padding:2rem 1rem}h1{color:var(--accent)}.api-check{color:var(--muted)}button{background:var(--accent);color:var(--accent-fg);border:0;border-radius:.5rem;padding:.6rem 1.2rem;font-size:1rem;cursor:pointer}