/* Token design system RT ku (tema terang) */
:root {
  --biru: #1F4FA3; --biru-lembut: #E5EDFA; --hijau: #5DC452; --teal: #2F7A76;
  --latar: #F4F6F3; --kartu: #FFFFFF; --tinta: #13233F; --redup: #4A5568; --garis: #DDE3DC;
}
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; background: var(--latar); color: var(--tinta);
  font-family: Nunito, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; font-size: 16px; line-height: 1.5;
  display: flex; justify-content: center; padding: 24px 16px;
}
.kartu {
  width: 100%; max-width: 420px; background: var(--kartu); border-radius: 24px; padding: 28px 20px;
  display: flex; flex-direction: column; align-items: stretch; text-align: center;
  box-shadow: 0 4px 16px rgba(19, 35, 63, .08);
}
.logo { width: 88px; height: 88px; margin: 0 auto 8px; }
.wordmark { margin: 0; font-size: 34px; font-weight: 800; letter-spacing: -0.5px; }
.wordmark .rt { color: var(--biru); } .wordmark .ku { color: var(--teal); }
.sub { margin: 4px 0 20px; color: var(--redup); }
.kode-kotak { background: var(--biru-lembut); border-radius: 16px; padding: 16px; margin-bottom: 16px; }
.kode-kotak .label { font-size: 12px; font-weight: 800; letter-spacing: 1.2px; color: var(--redup); }
.kode { font-family: ui-monospace, Menlo, monospace; font-size: 34px; font-weight: 800; letter-spacing: 8px; color: var(--biru); margin: 4px 0 10px; }
.tombol {
  display: flex; align-items: center; justify-content: center; min-height: 56px; border-radius: 16px;
  font-weight: 700; font-size: 17px; text-decoration: none; margin-bottom: 10px; cursor: pointer; border: 0;
}
.tombol.utama { background: var(--biru); color: #fff; }
.tombol.garis { background: #fff; color: var(--biru); border: 2px solid var(--biru); }
.tombol.kecil { min-height: 40px; font-size: 14px; margin: 0 auto; padding: 0 16px; display: inline-flex; }
.catatan { color: var(--redup); font-size: 14px; }
.langkah { text-align: left; color: var(--redup); font-size: 14.5px; margin: 12px 0 0; padding-left: 20px; }
.langkah li { margin-bottom: 6px; }
[hidden] { display: none !important; }