:root {
  --bg: #0f1420;
  --bg2: #161d2e;
  --card: #1e2739;
  --text: #e8ecf4;
  --muted: #93a0b4;
  --line: #3d4a63;
  --accent: #38bdf8;
  --danger: #f87171;
  --warn: #fbbf24;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif; font-size: 14px;
}
.hidden { display: none !important; }

.centred { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.card {
  background: var(--bg2); border: 1px solid var(--line); border-radius: 14px;
  padding: 26px 24px; width: 100%; max-width: 380px;
}
.card h1 { margin: 0 0 6px; font-size: 20px; }
.sub { color: var(--muted); font-size: 13px; margin-bottom: 18px; }
.fineprint { color: var(--muted); font-size: 11.5px; line-height: 1.55; margin-top: 16px; }

label { display: block; font-size: 12.5px; color: var(--muted); margin: 12px 0; }

button {
  padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--card); color: var(--text); cursor: pointer; font-size: 13px;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .55; cursor: default; }
button.primary {
  width: 100%; background: var(--accent); color: #04222f; border: none;
  font-weight: 700; padding: 10px; font-size: 14px;
}

.gbtn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  background: #fff; color: #1f2937; text-decoration: none; font-weight: 600;
  border-radius: 9px; padding: 11px; margin-top: 4px;
}
.gbtn svg { width: 18px; height: 18px; }

.err { color: var(--danger); font-size: 12.5px; margin-top: 12px; min-height: 1em; }
.err-inline { color: var(--danger); font-size: 12px; }