/* ── Modal Login ── */
.pia-login-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 15, 30, .45);
  backdrop-filter: blur(8px);
  z-index: 1060;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.pia-login-backdrop.open { opacity: 1; pointer-events: all; }

.pia-login-box {
  background: #fff;
  border-radius: 20px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .22);
  transform: translateY(20px) scale(.97);
  transition: transform .3s cubic-bezier(.4, 0, .2, 1);
  overflow: hidden;
}
.pia-login-backdrop.open .pia-login-box {
  transform: translateY(0) scale(1);
}

/* Header con gradiente brand */
.pia-login-header {
  background: var(--color-brand-grad);
  padding: 28px 28px 22px;
  text-align: center;
  position: relative;
}
.pia-login-logo {
  width: 64px; height: 64px;
  border-radius: 14px;
  border: 3px solid rgba(255, 255, 255, .4);
  margin-bottom: 10px;
  object-fit: cover;
}
.pia-login-header h4 {
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
  margin: 0 0 2px;
}
.pia-login-header p {
  color: rgba(255, 255, 255, .75);
  font-size: 0.8rem;
  margin: 0;
}

.btn-pia-login-close {
  position: absolute;
  top: 14px; right: 14px;
  background: rgba(255, 255, 255, .2);
  border: none;
  border-radius: 8px;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  transition: background .2s;
}
.btn-pia-login-close:hover { background: rgba(255, 255, 255, .35); }

/* Body */
.pia-login-body { padding: 26px 28px 28px; }

.pia-input-group { position: relative; margin-bottom: 14px; }
.pia-input-icon {
  position: absolute;
  left: 13px; top: 50%;
  transform: translateY(-50%);
  color: #9ca3af;
  font-size: 1rem;
  pointer-events: none;
}
.pia-input {
  width: 100%;
  border: 1.5px solid #e5e7eb;
  border-radius: 10px;
  padding: 11px 14px 11px 40px;
  font-size: 0.9rem;
  outline: none;
  background: #f9fafb;
  color: #1a1a2e;
  transition: border-color .2s, box-shadow .2s;
}
.pia-input:focus {
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-brand) 12%, transparent);
  background: #fff;
}
.pia-input-password { padding-right: 40px; }

.pia-input-eye {
  position: absolute;
  right: 11px; top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: #9ca3af;
  font-size: 1rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  transition: color .2s;
}
.pia-input-eye:hover { color: var(--color-brand); }

.btn-pia-login-submit {
  width: 100%;
  background: var(--color-brand-grad);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 13px;
  font-weight: 700;
  font-size: 0.95rem;
  margin-top: 6px;
  transition: opacity .2s, transform .15s;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  cursor: pointer;
}
.btn-pia-login-submit:hover { opacity: .88; transform: translateY(-1px); }
.btn-pia-login-submit:disabled { opacity: .75; transform: none; cursor: not-allowed; }

/* Spinner inline en botones */
.pia-btn-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: pia-spin .65s linear infinite;
  flex-shrink: 0;
}
@keyframes pia-spin {
  to { transform: rotate(360deg); }
}

.pia-login-links {
  display: flex;
  justify-content: space-between;
  margin-top: 14px;
  font-size: 0.8rem;
}
.pia-login-links a {
  color: var(--color-brand);
  text-decoration: none;
  font-weight: 500;
}
.pia-login-links a:hover { text-decoration: underline; }

.pia-login-divider {
  display: flex; align-items: center; gap: 10px;
  margin: 18px 0;
  color: #d1d5db; font-size: 0.78rem;
}
.pia-login-divider::before, .pia-login-divider::after {
  content: ''; flex: 1; height: 1px; background: #e9ecef;
}

.pia-login-tenant {
  text-align: center;
  font-size: 0.72rem;
  color: #9ca3af;
}
.pia-login-tenant span {
  background: color-mix(in srgb, var(--color-brand) 10%, transparent);
  color: var(--color-brand);
  border-radius: 6px;
  padding: 2px 8px;
  font-weight: 600;
}

/* Tabs Login / Registro */
.pia-login-tabs {
  display: flex;
  gap: 4px;
  background: rgba(0,0,0,.15);
  border-radius: 10px;
  padding: 4px;
  margin-top: 14px;
}
.pia-login-tab {
  flex: 1;
  background: transparent;
  border: none;
  border-radius: 7px;
  color: rgba(255,255,255,.7);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 7px 10px;
  cursor: pointer;
  transition: background .2s, color .2s;
}
.pia-login-tab.active {
  background: rgba(255,255,255,.95);
  color: #1a1a2e;
  font-weight: 700;
}
.pia-login-tab:not(.active):hover { color: #fff; }

/* Vistas (login / registro / olvide contraseña) */
.pia-login-view { display: none; }
.pia-login-view.active { display: block; }

/* Mensaje de error inline */
.pia-login-error {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 0.82rem;
  margin-bottom: 14px;
  display: none;
}

/* Mensaje de éxito inline */
.pia-login-success {
  background: #f0fdf4;
  color: #15803d;
  border: 1px solid #bbf7d0;
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 0.82rem;
  margin-bottom: 14px;
  display: none;
}