/* TradeForge Demo Auth — mismo lenguaje visual que NMS TradeForge Landing:
   Inter (texto), Source Serif 4 (títulos), JetBrains Mono (mayúsculas/mono),
   acento dorado. Estilos aislados con variables propias, sin dependencias. */

.tfa-box {
  --tfa-bg: #ffffff;
  --tfa-border: rgba(154, 113, 0, 0.22);
  --tfa-border-strong: rgba(154, 113, 0, 0.38);
  --tfa-text: #14171c;
  --tfa-text-secondary: #3d4148;
  --tfa-muted: #6b6f78;
  --tfa-gold: #b8860b;
  --tfa-gold-light: #d19a1f;
  --tfa-gold-glow: rgba(184, 134, 11, 0.16);
  --tfa-field-bg: #fbf9f4;
  --tfa-danger-bg: #fdecec;
  --tfa-danger-text: #a12626;
  --tfa-danger-border: rgba(161, 38, 38, 0.18);
  --tfa-success-bg: #eafaf1;
  --tfa-success-text: #1a7a4c;
  --tfa-success-border: rgba(26, 122, 76, 0.18);
  --tfa-weak: #d64545;
  --tfa-fair: #d19a1f;
  --tfa-good: #7ab84a;
  --tfa-strong: #1a9d5c;
  --tfa-radius: 14px;

  box-sizing: border-box;
  max-width: 400px;
  width: 100%;
  margin: 0 auto;
  padding: 36px 30px;
  background: var(--tfa-bg);
  border: 1px solid var(--tfa-border);
  border-radius: var(--tfa-radius);
  box-shadow: 0 4px 14px rgba(20, 23, 28, 0.05), 0 16px 40px rgba(20, 23, 28, 0.07);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--tfa-text);
}

.tfa-box *,
.tfa-box *::before,
.tfa-box *::after {
  box-sizing: border-box;
}

.tfa-kicker {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--tfa-gold);
  margin-bottom: 12px;
}

.tfa-title {
  font-family: 'Source Serif 4', serif;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--tfa-text);
  margin: 0 0 8px;
  line-height: 1.25;
}

.tfa-subtitle {
  font-size: 14px;
  color: var(--tfa-muted);
  line-height: 1.55;
  margin: 0 0 22px;
}

.tfa-alert {
  margin-bottom: 18px;
  padding: 11px 14px;
  border-radius: 9px;
  font-size: 13.5px;
  line-height: 1.5;
  border: 1px solid transparent;
}

.tfa-alert-error {
  background: var(--tfa-danger-bg);
  color: var(--tfa-danger-text);
  border-color: var(--tfa-danger-border);
}

.tfa-alert-success {
  background: var(--tfa-success-bg);
  color: var(--tfa-success-text);
  border-color: var(--tfa-success-border);
}

.tfa-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 0;
}

.tfa-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--tfa-text-secondary);
}

.tfa-field span {
  font-weight: 600;
  letter-spacing: 0.1px;
}

.tfa-field input {
  font: inherit;
  font-size: 14.5px;
  color: var(--tfa-text);
  background: var(--tfa-field-bg);
  border: 1px solid var(--tfa-border);
  border-radius: 9px;
  padding: 11px 13px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  width: 100%;
}

.tfa-field input:focus {
  border-color: var(--tfa-gold);
  background: #fff;
  box-shadow: 0 0 0 3px var(--tfa-gold-glow);
}

.tfa-field input.tfa-invalid {
  border-color: var(--tfa-weak);
  box-shadow: 0 0 0 3px rgba(214, 69, 69, 0.12);
}

.tfa-hint {
  margin: -10px 0 0;
  font-size: 12px;
  color: var(--tfa-muted);
}

/* Campo de contraseña + ojito */
.tfa-input-group {
  position: relative;
  display: flex;
  align-items: stretch;
}

.tfa-input-group input {
  padding-right: 42px;
}

.tfa-eye {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--tfa-muted);
  cursor: pointer;
  border-radius: 7px;
  padding: 0;
  transition: color 0.15s ease, background 0.15s ease;
}

.tfa-eye:hover {
  color: var(--tfa-gold);
  background: var(--tfa-gold-glow);
}

.tfa-eye svg {
  pointer-events: none;
}

/* Medidor de fuerza de contraseña */
.tfa-strength {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
}

.tfa-strength-track {
  flex: 1;
  height: 4px;
  border-radius: 3px;
  background: var(--tfa-border);
  overflow: hidden;
}

.tfa-strength-track span {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: 3px;
  background: var(--tfa-weak);
  transition: width 0.2s ease, background 0.2s ease;
}

.tfa-strength small {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--tfa-muted);
  white-space: nowrap;
}

/* Honeypot: invisible para personas, visible para bots que rellenan todo */
.tfa-hp {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.tfa-forgot-link {
  align-self: flex-end;
  margin-top: -8px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--tfa-gold);
  text-decoration: none;
}

.tfa-forgot-link:hover {
  color: var(--tfa-gold-light);
  text-decoration: underline;
}

.tfa-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 12px 16px;
  font-size: 14.5px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  border-radius: 9px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.2;
  transition: background 0.15s ease, border-color 0.15s ease, opacity 0.15s ease, transform 0.05s ease;
}

.tfa-btn:active {
  transform: translateY(1px);
}

.tfa-btn-primary {
  background: var(--tfa-gold);
  color: #ffffff;
}

.tfa-btn-primary:hover {
  background: #a3790a;
}

.tfa-btn-primary:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

.tfa-btn-primary.is-loading {
  position: relative;
  color: transparent;
}

.tfa-btn-primary.is-loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  animation: tfa-spin 0.7s linear infinite;
}

@keyframes tfa-spin {
  to { transform: rotate(360deg); }
}

.tfa-btn-google {
  background: #ffffff;
  color: var(--tfa-text);
  border-color: var(--tfa-border);
}

.tfa-btn-google:hover {
  background: #faf8f3;
  border-color: var(--tfa-border-strong);
}

.tfa-g-icon {
  flex-shrink: 0;
}

.tfa-btn-logout {
  display: inline-flex;
  width: auto;
  background: transparent;
  color: var(--tfa-text-secondary);
  border-color: var(--tfa-border);
  padding: 10px 20px;
  font-size: 13.5px;
}

.tfa-btn-logout:hover {
  background: var(--tfa-field-bg);
  border-color: var(--tfa-border-strong);
  color: var(--tfa-text);
}

.tfa-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--tfa-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.tfa-divider::before,
.tfa-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--tfa-border);
}

.tfa-footer-link {
  margin: 22px 0 0;
  text-align: center;
  font-size: 13px;
  color: var(--tfa-muted);
}

.tfa-footer-link a {
  color: var(--tfa-gold);
  font-weight: 600;
  text-decoration: none;
  margin-left: 4px;
}

.tfa-footer-link a:hover {
  color: var(--tfa-gold-light);
  text-decoration: underline;
}

@media (max-width: 420px) {
  .tfa-box {
    padding: 26px 20px;
    border-radius: 12px;
  }

  .tfa-title {
    font-size: 21px;
  }
}