:root { color-scheme: dark; --bg: #0b0f0b; --panel: #121812; --line: #243024; --ink: #e8efe6; --muted: #9aa89a; --accent: #b5e36c; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 16px; background: var(--bg); color: var(--ink);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif; }
.card { width: 100%; max-width: 440px; padding: 28px; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); }
.eyebrow { margin: 0; color: var(--accent); font-size: 12px; letter-spacing: .12em; }
h1 { margin: 4px 0 16px; font-size: 26px; }
p { margin: 0 0 16px; color: var(--muted); }
.who { color: var(--ink); }
code { font-size: 13px; word-break: break-all; }
button { min-height: 44px; padding: 0 20px; border: 0; border-radius: 999px; background: var(--accent); color: #0b0f0b; font: inherit; font-weight: 700; cursor: pointer; }
button.ghost { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
button:disabled { opacity: .5; cursor: default; }
button:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.note { margin: 12px 0 0; min-height: 1.6em; font-size: 14px; }