:root {
  --bg: #12110F; --panel: #181714; --rule: #2A2824; --ink: #E8E2D4; --ink2: #9A9384; --muted: #6E6A61;
  --err: #E5484D; --ok: #8BAE7A;
  --l1: #D9A441; --l2: #7FA7C9; --l3: #C8664A; --l4: #8BAE7A;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: var(--bg); color: var(--ink); font: 15px/1.6 Vazirmatn, Tahoma, system-ui, sans-serif;
  background-image: linear-gradient(rgb(232 226 212 / 3.5%) 1px, transparent 1px), linear-gradient(90deg, rgb(232 226 212 / 3.5%) 1px, transparent 1px);
  background-size: 40px 40px;
}
.wrap { min-height: 100vh; display: grid; place-content: center; padding: 24px 16px; gap: 16px; }
.ticket { position: relative; width: min(400px, calc(100vw - 32px)); background: var(--panel); border: 1px solid var(--rule); border-radius: 4px; padding: 30px 26px 26px; overflow: hidden; }
.lines { position: absolute; inset: 0 0 auto 0; display: flex; height: 6px; }
.lines i { flex: 1; }
.lines i:nth-child(1) { background: var(--l1); }
.lines i:nth-child(2) { background: var(--l2); }
.lines i:nth-child(3) { background: var(--l3); }
.lines i:nth-child(4) { background: var(--l4); }
.eyebrow { font: 500 10px/1 var(--mono); letter-spacing: .12em; color: var(--muted); margin: 6px 0 10px; direction: ltr; text-align: left; }
h1 { font-size: 22px; margin: 0; }
.sub { color: var(--ink2); font-size: 13px; margin: 4px 0 22px; }
.f { display: grid; gap: 6px; font-size: 13px; color: var(--ink2); margin-bottom: 14px; }
.f[hidden] { display: none; }
input {
  font: 15px var(--mono); color: var(--ink); background: var(--bg); border: 1px solid var(--rule); border-radius: 2px;
  padding: 10px 12px; width: 100%; outline: none; text-align: left;
}
input:focus { border-color: var(--ink2); box-shadow: 0 0 0 3px rgb(232 226 212 / 8%); }
.perf { position: relative; margin: 22px -26px 18px; border-top: 1px dashed var(--rule); }
.perf::before, .perf::after { content: ""; position: absolute; top: -10px; width: 20px; height: 20px; border-radius: 50%; background: var(--bg); border: 1px solid var(--rule); }
.perf::before { left: -11px; }
.perf::after { right: -11px; }

.captcha {
  display: grid; grid-template-columns: 26px 1fr auto; grid-template-rows: auto auto; gap: 4px 12px; align-items: center;
  width: 100%; text-align: start; font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--rule);
  border-radius: 2px; padding: 12px 14px; cursor: pointer;
}
.captcha:hover { border-color: var(--ink2); }
.captcha:focus-visible { outline: 2px solid var(--ink2); outline-offset: 2px; }
.captcha .box { grid-column: 1; grid-row: 1 / 3; width: 24px; height: 24px; border: 2px solid var(--ink2); border-radius: 2px; position: relative; }
.captcha .txt { grid-column: 2; grid-row: 1; display: grid; }
.captcha b { font-weight: 600; font-size: 14px; }
.captcha small { color: var(--muted); font-size: 12px; }
.captcha .brand { grid-column: 3; grid-row: 1 / 3; font: 600 10px var(--mono); letter-spacing: .1em; color: var(--muted); border: 1px solid var(--rule); padding: 2px 6px; }
.captcha .meter { grid-column: 2; grid-row: 2; height: 3px; background: var(--rule); overflow: hidden; display: none; }
.captcha .meter i { display: block; height: 100%; width: 0; background: var(--ink); transition: width .2s; }
.captcha.working { cursor: progress; }
.captcha.working .meter { display: block; }
.captcha.working .box { border-color: transparent; border-top-color: var(--ink); border-right-color: var(--ink); border-radius: 50%; animation: spin .8s linear infinite; }
.captcha.done { border-color: var(--ok); cursor: default; }
.captcha.done .box { border-color: var(--ok); background: var(--ok); }
.captcha.done .box::after { content: ""; position: absolute; left: 7px; top: 2px; width: 6px; height: 12px; border: solid var(--bg); border-width: 0 3px 3px 0; transform: rotate(45deg); }
@keyframes spin { to { transform: rotate(360deg); } }

.msg { margin: 14px 0 0; font-size: 13px; color: var(--err); border-inline-start: 3px solid var(--err); padding: 4px 10px; }
.msg[hidden] { display: none; }
.submit {
  margin-top: 18px; width: 100%; font: 600 15px Vazirmatn, sans-serif; color: var(--bg); background: var(--ink);
  border: 0; border-radius: 2px; padding: 11px; cursor: pointer;
}
.submit:hover:not(:disabled) { background: #fff; }
.submit:disabled { opacity: .4; cursor: not-allowed; }
.foot { text-align: center; color: var(--muted); font-size: 11px; margin: 0; }
@media (prefers-reduced-motion: reduce) { .captcha.working .box { animation: none; } }