:root {
  --green: #008a00;
  --green-dark: #006e00;
  --grey: #1f2325;
  --grey-mid: #4d575d;
  --grey-light: #dbdddf;
  --bg: #ffffff;
  --panel: #f7f7f7;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--grey);
  background: var(--bg);
  line-height: 1.5;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 0 16px; }
.top { background: var(--green); color: #fff; padding: 14px 0; }
.top .brand { color: #fff; font-weight: 700; font-size: 1.25rem; text-decoration: none; }
.top .sub { margin-left: 12px; opacity: 0.85; font-size: 0.9rem; }
main { padding: 24px 16px 40px; }
h1 { font-weight: 700; font-size: 1.75rem; margin: 0 0 12px; }
h2 { font-weight: 700; font-size: 1.2rem; margin: 24px 0 8px; }
a { color: var(--green-dark); }
.muted { color: var(--grey-mid); font-size: 0.95rem; }
.avatar { width: 96px; height: 96px; border-radius: 50%; margin-bottom: 12px; display: block; }
.card { background: var(--panel); border: 1px solid var(--grey-light); border-radius: 8px; padding: 16px; display: grid; gap: 8px; max-width: 360px; }
input[type=password], input[type=text] { font: inherit; padding: 8px 10px; border: 1px solid var(--grey-light); border-radius: 6px; }
button { font: inherit; font-weight: 700; color: #fff; background: var(--green); border: 0; border-radius: 6px; padding: 10px 14px; cursor: pointer; }
button:hover { background: var(--green-dark); }
.answer, .flag { font-weight: 700; margin-top: 16px; }
.flag { font-family: Consolas, Menlo, monospace; font-size: 1.1rem; background: var(--panel); border: 1px solid var(--grey-light); padding: 10px 12px; border-radius: 6px; word-break: break-all; }
.token { font-family: Consolas, Menlo, monospace; font-size: 0.85rem; background: var(--panel); border: 1px solid var(--grey-light); padding: 10px 12px; border-radius: 6px; white-space: pre-wrap; word-break: break-all; }
.wall { list-style: none; padding: 0; margin: 0; }
.wall li { padding: 10px 0; border-bottom: 1px solid var(--grey-light); }
.term { background: var(--grey); color: #d8f5d8; font-family: Consolas, Menlo, monospace; font-size: 0.95rem; border-radius: 8px; padding: 12px; min-height: 260px; }
.term pre { margin: 0 0 6px; white-space: pre-wrap; word-break: break-word; max-height: 360px; overflow: auto; font: inherit; }
.term .line { display: flex; gap: 8px; }
.term .prompt { white-space: nowrap; }
.term input { flex: 1; font: inherit; color: inherit; background: transparent; border: 0; outline: 0; }
.foot { display: flex; justify-content: space-between; align-items: center; padding: 16px; border-top: 1px solid var(--grey-light); color: var(--grey-mid); font-size: 0.9rem; }
code { font-family: Consolas, Menlo, monospace; background: var(--panel); padding: 1px 5px; border-radius: 4px; }