/* ==========================================================================
 *  assets/admin-mfa.css
 *  Phase 1 · MFA Gate overlay — Control Tower
 *  Design system: Obsidian / CyberGreen / KemetGold
 *  REV 2 · QR contrast fix for scan reliability
 * ========================================================================== */

/* Blocco visivo del contenuto sottostante */
body.mfa-locked { overflow: hidden; }
body.mfa-locked > *:not(#mfa-gate):not(script) {
  filter: blur(4px) brightness(.5);
  pointer-events: none;
  user-select: none;
}

/* ─── Overlay full-screen ──────────────────────────────────────────────── */
.mfa-gate {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background:
    radial-gradient(circle at 50% 50%, rgba(0, 255, 163, .05) 0%, transparent 60%),
    rgba(6, 10, 13, .94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow-y: auto;
}

/* ─── Card centrale ─────────────────────────────────────────────────────── */
.mfa-gate__card {
  width: 100%;
  max-width: 460px;
  padding: 28px 24px;
  border-radius: 18px;
  background: linear-gradient(165deg, rgba(19, 25, 32, .96), rgba(9, 13, 16, .99));
  border: 1px solid rgba(212, 175, 55, .45);
  box-shadow:
    0 25px 60px -15px rgba(0, 0, 0, .9),
    0 0 45px -10px rgba(0, 255, 163, .15);
  font-family: 'Plus Jakarta Sans', sans-serif;
  color: #E2E8F0;
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
}

/* ─── Header ────────────────────────────────────────────────────────────── */
.mfa-gate__header { text-align: center; margin-bottom: 4px; }

.mfa-gate__logo {
  font-size: 2.5rem;
  line-height: 1;
  color: #00FFA3;
  margin-bottom: 8px;
  text-shadow: 0 0 20px rgba(0, 255, 163, .5);
}

.mfa-gate__title {
  font-family: 'Cinzel', serif;
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: .03em;
  margin: 0;
}

.mfa-gate__subtitle {
  font-family: 'JetBrains Mono', monospace;
  font-size: .72rem;
  color: #D4AF37;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin: 4px 0 0;
}

/* ─── Body / Testo ──────────────────────────────────────────────────────── */
.mfa-gate__body { display: flex; flex-direction: column; gap: 12px; }

.mfa-gate__text {
  font-size: .85rem;
  color: #CBD5E1;
  line-height: 1.55;
  margin: 0;
}

.mfa-gate__text--dim {
  color: #94A3B8;
  font-style: italic;
  font-size: .8rem;
}

/* ─── QR code · FORCED HIGH CONTRAST ────────────────────────────────────── */
.mfa-gate__qr {
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  padding: 20px !important;
  border-radius: 12px !important;
  background: #FFFFFF !important;
  margin: 0 auto 12px !important;
  width: fit-content !important;
  box-shadow:
    0 4px 20px rgba(0, 0, 0, 0.3),
    inset 0 0 0 4px #FFFFFF !important;
  filter: none !important;
  opacity: 1 !important;
}

.mfa-gate__qr svg,
.mfa-gate__qr img {
  display: block !important;
  width: 240px !important;
  height: 240px !important;
  background: #FFFFFF !important;
  filter: none !important;
  opacity: 1 !important;
  image-rendering: pixelated !important;
  image-rendering: crisp-edges !important;
  -ms-interpolation-mode: nearest-neighbor !important;
}

/* Assicura che i path interni dell'SVG siano neri su bianco */
.mfa-gate__qr svg path,
.mfa-gate__qr svg rect {
  fill: #000000 !important;
}

/* ─── Chiave manuale ────────────────────────────────────────────────────── */
.mfa-gate__secret {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(0, 0, 0, .6);
  border: 1px solid rgba(212, 175, 55, .3);
}

.mfa-gate__secret-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: .65rem;
  color: #94A3B8;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.mfa-gate__secret-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: .8rem;
  color: #D4AF37;
  word-break: break-all;
  letter-spacing: .05em;
}

/* ─── Form / Input ──────────────────────────────────────────────────────── */
.mfa-gate__form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mfa-gate__input {
  width: 100%;
  padding: 14px 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.5rem;
  text-align: center;
  letter-spacing: .3em;
  color: #00FFA3;
  background: rgba(0, 0, 0, .7);
  border: 1px solid rgba(0, 255, 163, .4);
  border-radius: 10px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

.mfa-gate__input:focus {
  border-color: #00FFA3;
  box-shadow: 0 0 0 3px rgba(0, 255, 163, .15);
}

.mfa-gate__input--wide {
  font-size: 1rem;
  letter-spacing: .1em;
}

/* ─── Bottoni ───────────────────────────────────────────────────────────── */
.mfa-gate__btn {
  width: 100%;
  padding: 12px 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: #001a10;
  background: linear-gradient(135deg, #00B871, #00FFA3);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: filter .15s, transform .1s;
}

.mfa-gate__btn:hover { filter: brightness(1.1); }
.mfa-gate__btn:active { transform: scale(.98); }
.mfa-gate__btn[disabled] { opacity: .5; cursor: wait; }

.mfa-gate__btn--ghost {
  background: rgba(0, 0, 0, .6);
  color: #00FFA3;
  border: 1px solid rgba(0, 255, 163, .4);
}

/* ─── Link secondari ────────────────────────────────────────────────────── */
.mfa-gate__link {
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: .78rem;
  color: #94A3B8;
  text-decoration: underline;
  padding: 6px;
  align-self: center;
}

.mfa-gate__link:hover { color: #D4AF37; }

/* ─── Griglia recovery codes ────────────────────────────────────────────── */
.mfa-gate__codes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 12px;
  border-radius: 10px;
  background: rgba(0, 0, 0, .7);
  border: 1px solid rgba(212, 175, 55, .3);
}

.mfa-gate__code {
  font-family: 'JetBrains Mono', monospace;
  font-size: .78rem;
  color: #D4AF37;
  text-align: center;
  padding: 4px;
  border-bottom: 1px dashed rgba(212, 175, 55, .25);
}

.mfa-gate__code:last-child { border-bottom: none; }

/* ─── Errore ────────────────────────────────────────────────────────────── */
.mfa-gate__err {
  color: #FF3B3B;
  font-size: .82rem;
  text-align: center;
  padding: 8px;
  background: rgba(255, 59, 59, .1);
  border: 1px solid rgba(255, 59, 59, .3);
  border-radius: 8px;
}

/* ─── Mobile ────────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .mfa-gate__card {
    padding: 22px 16px;
    border-radius: 14px;
  }
  .mfa-gate__qr svg,
  .mfa-gate__qr img {
    width: 200px !important;
    height: 200px !important;
  }
  .mfa-gate__qr {
    padding: 16px !important;
  }
  .mfa-gate__input {
    font-size: 1.2rem;
    padding: 12px;
  }
}