/* Páginas de respaldo de los Universal Links (/join, /i/…, /app/…).
   Papel editorial (V2): tinta sobre papel, coral solo como señal. */
:root {
  --lf-paper: #F7F6F3; --lf-card: #FFFFFF; --lf-ink: #1A1814; --lf-mute: #6E6B64;
  --lf-line: #E8E5DE; --lf-chip: #F0EEE8; --lf-coral: #FF5100;
  --lf-green: #1E9E6A; --lf-red: #E5342B;
  --lf-shadow: 0 1px 2px rgba(26, 24, 20, .05);
}
[data-theme="dark"] {
  --lf-paper: #151517; --lf-card: #1D1D20; --lf-ink: #F1F0EC; --lf-mute: #98958D;
  --lf-line: #2A2A2E; --lf-chip: #26262A; --lf-shadow: 0 1px 2px rgba(0, 0, 0, .3);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --lf-paper: #151517; --lf-card: #1D1D20; --lf-ink: #F1F0EC; --lf-mute: #98958D;
    --lf-line: #2A2A2E; --lf-chip: #26262A; --lf-shadow: 0 1px 2px rgba(0, 0, 0, .3);
  }
}
html, body { background: var(--lf-paper); }
body { margin: 0; color: var(--lf-ink); font-family: "Instrument Sans", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif; }
.lf { min-height: 100vh; box-sizing: border-box; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 28px; padding: 40px 16px; }
.lf-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--lf-ink); text-decoration: none; font-weight: 700; font-size: 22px; letter-spacing: -.035em; }
.lf-card { width: 100%; max-width: 460px; box-sizing: border-box; background: var(--lf-card); border: 1px solid var(--lf-line); border-radius: 16px; box-shadow: var(--lf-shadow); padding: 32px 28px; }
.lf-eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 16px; font: 500 11px/1 "JetBrains Mono", ui-monospace, Menlo, monospace; letter-spacing: .14em; text-transform: uppercase; color: var(--lf-mute); }
.lf-eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--lf-coral); }
/* El punto dice el estado en la confirmación y la baja (Hi-Fi fila F): verde
   hecho, rojo error. Sin clase, coral (así se ve en todas las demás páginas). */
.lf-eyebrow .dot.ok { background: var(--lf-green); }
.lf-eyebrow .dot.err { background: var(--lf-red); }
.lf-title { margin: 0 0 12px; font-size: 30px; line-height: 1.08; font-weight: 700; letter-spacing: -.025em; }
.lf-lead { margin: 0 0 24px; font-size: 16px; line-height: 1.6; color: var(--lf-mute); }
.lf-lead a { color: var(--lf-ink); }
.lf-code { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; background: var(--lf-chip); border-radius: 12px; padding: 16px 18px; margin: 0 0 24px; }
.lf-code-label { font: 500 10.5px/1 "JetBrains Mono", ui-monospace, Menlo, monospace; letter-spacing: .13em; text-transform: uppercase; color: var(--lf-mute); }
.lf-code-value { font: 600 30px/1.1 "JetBrains Mono", ui-monospace, Menlo, monospace; letter-spacing: .12em; word-break: break-all; user-select: all; }
.lf-actions { display: flex; flex-direction: column; gap: 10px; }
.lf-btn { display: block; box-sizing: border-box; width: 100%; padding: 14px 18px; border-radius: 12px; border: 1px solid var(--lf-line); background: transparent; color: var(--lf-ink); font: 600 15px/1.2 "Instrument Sans", -apple-system, Helvetica, Arial, sans-serif; text-align: center; text-decoration: none; cursor: pointer; }
.lf-btn-primary { background: var(--lf-ink); border-color: var(--lf-ink); color: var(--lf-paper); }
.lf-btn-ghost { border-style: dashed; }
.lf-btn[data-state="done"] { border-color: var(--lf-coral); color: var(--lf-coral); }
/* «Abrir esta página no confirma nada; solo el botón.»: debajo del botón del POST. */
.lf-hint { margin: 12px 0 4px; font-size: 14px; line-height: 1.5; color: var(--lf-mute); }
.lf-note { margin: 20px 0 0; padding: 12px 14px; border-radius: 10px; border: 1px dashed var(--lf-coral); font-size: 13.5px; line-height: 1.5; color: var(--lf-mute); }
.lf-foot { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; font: 500 11px/1.4 "JetBrains Mono", ui-monospace, Menlo, monospace; color: var(--lf-mute); }
.lf-foot a { color: var(--lf-mute); }