:root {
  --bg: #0b0c0d;
  --ink: #f2f0ea;
  --muted: #9aa0a6;
  --amber: #f0b429;
  --line: rgba(242, 240, 234, 0.12);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  min-height: 100%;
  background: radial-gradient(1200px 600px at 50% -10%, #1a1208, var(--bg) 55%);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  display: grid;
  place-items: center;
  padding: 32px 20px;
}
.gate { width: min(420px, 100%); text-align: center; }
.mark {
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 800;
  font-size: clamp(64px, 18vw, 96px);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 0.9;
}
.sub { color: var(--muted); margin: 12px 0 36px; }
form { display: grid; gap: 14px; text-align: left; }
label { font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); display: grid; gap: 6px; }
input {
  font: inherit;
  color: var(--ink);
  background: #171a1d;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 14px;
  outline: none;
}
input:focus { border-color: var(--amber); }
button {
  margin-top: 8px;
  font-family: "Barlow Condensed", sans-serif;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #0b0c0d;
  background: var(--amber);
  border: 0;
  border-radius: 10px;
  padding: 14px;
  cursor: pointer;
}
.err { color: #ff6b63; text-align: center; font-size: 14px; }