:root { color-scheme: dark; --bg: #090D16; --card: #172033; --bg2: #111827; --green: #00E676; --purple: #8B5CF6; --text: #FFFFFF; --muted: #94A3B8; --danger: #FF4D6D; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(1200px 600px at 20% -10%, rgba(139, 92, 246, .18), transparent), var(--bg); color: var(--text); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; display: flex; align-items: center; justify-content: center; padding: 24px; }
main { width: 100%; max-width: 480px; background: var(--card); border: 1px solid #24304A; border-radius: 24px; padding: 32px 28px; }
main.wide { max-width: 760px; }
h1 { font-size: 28px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 18px; margin: 28px 0 8px; }
p, li { color: var(--muted); }
.tag { color: var(--green); font-weight: 600; letter-spacing: .02em; }
.code { font: 700 28px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .18em; background: var(--bg2); border-radius: 12px; padding: 16px; text-align: center; color: var(--text); margin: 20px 0; }
a.button, button { display: block; width: 100%; text-align: center; background: var(--green); color: #04130B; font: 700 16px/1 inherit; border: 0; border-radius: 14px; padding: 16px; text-decoration: none; cursor: pointer; margin-top: 12px; }
a.button.secondary { background: transparent; color: var(--text); border: 1px solid #24304A; }
button:disabled { opacity: .5; cursor: default; }
label { display: block; color: var(--muted); font-size: 14px; margin: 16px 0 6px; }
input { width: 100%; background: var(--bg2); border: 1px solid #24304A; border-radius: 12px; color: var(--text); font: inherit; padding: 14px; }
input:focus-visible, a:focus-visible, button:focus-visible { outline: 2px solid var(--purple); outline-offset: 2px; }
.note { font-size: 13px; margin-top: 24px; }
.ok { color: var(--green); } .err { color: var(--danger); }
a { color: var(--green); }
.draft { border: 1px dashed var(--danger); border-radius: 12px; padding: 12px 14px; color: var(--text); font-size: 14px; }