:root { --navy:#14224a; --gold:#b99653; --ink:#1a2138; --muted:#5d6584; --line:#e7e2d6; --ivory:#f6f6fa; --paper:#fff; --ok:#1f6b3a; --err:#9b1c1c; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ivory); color: var(--ink); font: 17px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
header { background: var(--navy); color: #fff; padding: 18px 20px; border-bottom: 3px solid var(--gold); }
header p { margin: 0; max-width: 40rem; margin-inline: auto; font-weight: 600; letter-spacing: .02em; }
main { max-width: 40rem; margin: 0 auto; padding: 24px 20px 48px; }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: 24px 20px; box-shadow: 0 1px 2px rgba(20,34,74,.06); }
h1 { margin: 0 0 12px; font-size: 1.35rem; line-height: 1.25; color: var(--navy); }
p { margin: 0 0 14px; }
.muted { color: var(--muted); font-size: .92rem; }
.after { margin-top: 16px; }
.actions { display: grid; gap: 12px; margin-top: 18px; }
button, .btn { font: inherit; font-weight: 600; min-height: 48px; padding: 12px 18px; border-radius: 8px; border: 2px solid var(--navy); background: var(--navy); color: #fff; cursor: pointer; text-align: center; }
button.secondary { background: var(--paper); color: var(--navy); }
button.danger { background: var(--paper); color: var(--err); border-color: var(--err); }
button:disabled { opacity: .55; cursor: wait; }
button:focus-visible, input:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }
label { display: block; font-weight: 600; margin: 14px 0 6px; }
input { font: inherit; width: 100%; min-height: 48px; padding: 10px 12px; border: 2px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink); }
.status { margin-top: 16px; padding: 12px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--ivory); }
.status.ok { border-color: var(--ok); color: var(--ok); background: #eef7f1; }
.status.err { border-color: var(--err); color: var(--err); background: #fbefef; }
[hidden] { display: none !important; }
footer { max-width: 40rem; margin: 0 auto; padding: 0 20px 32px; color: var(--muted); font-size: .85rem; }
@media (prefers-color-scheme: dark) {
  body { background: #0f1630; color: #e9ecf6; }
  .card { background: #172044; border-color: #2a3560; box-shadow: none; }
  h1 { color: #fff; } .muted, footer { color: #aeb6d4; }
  button.secondary { background: transparent; color: #fff; border-color: #aeb6d4; }
  button.danger { background: transparent; color: #ffb4b4; border-color: #ffb4b4; }
  input { background: #0f1630; color: #fff; border-color: #2a3560; }
  .status { background: #0f1630; border-color: #2a3560; }
  .status.ok { background: #10261a; color: #8fd9a8; border-color: #8fd9a8; }
  .status.err { background: #2b1111; color: #ffb4b4; border-color: #ffb4b4; }
}