/* ── Contenedor ─────────────────────────────────────── */
.auth-wrap {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  padding: 16px;
  animation: slideUp .45s cubic-bezier(.22, .68, 0, 1.2) both;
}

/* ── Tabs ───────────────────────────────────────────── */
.tabs {
  display: flex;
  background: var(--card);
  border: 1px solid var(--bord);
  border-radius: var(--radius);
  padding: 3px;
  margin-bottom: 24px;
}

.tab {
  flex: 1;
  text-align: center;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted2);
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: all .2s;
  display: block;
}

.tab.active {
  background: var(--acc);
  color: #fff;
  box-shadow: 0 2px 12px rgba(37, 99, 235, .35);
}

.tab:not(.active):hover { color: var(--txt); }

/* ── Campos ─────────────────────────────────────────── */
.field { margin-bottom: 16px; }

.field label {
  display: block;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--muted2);
  letter-spacing: .5px;
  text-transform: uppercase;
  margin-bottom: 7px;
}

.field input {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--bord2);
  border-radius: var(--radius-sm);
  padding: 10px 13px;
  font-size: 13.5px;
  font-family: var(--font-ui);
  color: var(--txt);
  outline: none;
  transition: border-color .18s, box-shadow .18s;
}

.field input:focus {
  border-color: var(--acc2);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, .18);
}

.field input::placeholder { color: var(--muted); }

/* ── Password toggle ────────────────────────────────── */
.pw-wrap { position: relative; }

.pw-wrap input { padding-right: 42px; }

.pw-toggle {
  position: absolute;
  right: 11px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--muted);
  padding: 3px;
  line-height: 0;
  transition: color .15s;
}

.pw-toggle:hover { color: var(--acc3); }

/* ── Error box ──────────────────────────────────────── */
.error-box {
  background: rgba(239, 68, 68, .1);
  border: 1px solid rgba(239, 68, 68, .3);
  border-radius: var(--radius-sm);
  padding: 10px 13px;
  font-size: 12.5px;
  color: #fca5a5;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Spinner de submit ──────────────────────────────── */
.btn-primary.submitting {
  opacity: .75;
  pointer-events: none;
}

.btn-primary.submitting::after {
  content: '';
  display: inline-block;
  width: 13px;
  height: 13px;
  border: 2px solid rgba(255, 255, 255, .3);
  border-top-color: #fff;
  border-radius: 50%;
  margin-left: 8px;
  vertical-align: middle;
  animation: spin .7s linear infinite;
}

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

/* ── Hints y barra de fuerza ────────────────────────── */
.hint {
  font-size: 11px;
  color: var(--muted);
  font-family: var(--font-mono);
  margin-top: 5px;
}

.strength-bar {
  height: 3px;
  border-radius: 2px;
  background: var(--bord2);
  margin-top: 7px;
  overflow: hidden;
}

.strength-fill {
  height: 100%;
  width: 0%;
  border-radius: 2px;
  transition: width .3s, background .3s;
}