/**
 * Estilos estáticos de la página de login.
 * Las variables :root (colores, animación) se inyectan desde PHP.
 */

/* Layout principal */
.login-page .content {
  position: relative !important;
  left: auto !important;
  top: auto !important;
  transform: none !important;
  padding: 24px !important;
  background: transparent !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  min-height: 100vh;
  display: grid;
  place-items: center;
  text-align: center;
  z-index: 1;
}

.auth-shell {
  width: 100%;
  max-width: 480px;
}

/* Header con logo */
.login-page .brand-badge {
  width: 92px;
  height: 92px;
  margin: 0 auto 12px;
  border-radius: 26px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--login-bg-c1), var(--login-bg-c2));
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.18);
  position: relative;
  overflow: hidden;
}

.login-page .brand-badge::after {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.45), transparent 55%);
  transform: rotate(10deg);
  pointer-events: none;
}

.login-page .brand-badge__inner {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: rgba(255,255,255,0.88);
  border: 1px solid rgba(255,255,255,0.55);
  display: grid;
  place-items: center;
  z-index: 1;
}

.login-page .brand-logo {
  width: 54px;
  height: 54px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 6px 14px rgba(15,23,42,0.12));
}

.login-page .auth-title {
  margin: 0;
  color: var(--text);
  font-weight: 800;
  font-size: clamp(1.5rem, 4vw, 1.875rem);
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.login-page .auth-subtitle {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.875rem;
}

/* Card */
.login-page .card.shadow {
  width: 100%;
  border-radius: 22px !important;
  border: 1px solid var(--card-border) !important;
  background: var(--card-bg) !important;
  box-shadow: var(--shadow) !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow: hidden;
  margin-top: 18px;
}

.login-page .login-card-body {
  padding: 26px !important;
  background: transparent !important;
}

.login-page .login-box-msg {
  color: var(--muted);
  font-size: 0.875rem;
  margin-bottom: 16px;
}

/* Inputs */
.login-page .input-group .form-control {
  height: 46px;
  border-radius: 14px !important;
  background: var(--input-bg);
  border: 1px solid var(--input-border) !important;
  padding-left: 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.login-page .input-group-text {
  border-radius: 14px !important;
  background: rgba(15,23,42,0.02) !important;
  border: 1px solid var(--input-border) !important;
  border-left: 0 !important;
  color: var(--muted);
  min-width: 46px;
  justify-content: center;
}

.login-page .input-group .form-control:focus {
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(0,194,255,0.15) !important;
  border-color: rgba(0,194,255,0.55) !important;
}

.login-page .input-group .form-control:focus-visible {
  outline: 0;
}

/* Botón principal */
.login-page .btn-primary.btn-block {
  position: relative;
  height: 46px;
  border-radius: 14px;
  border: 0;
  font-weight: 700;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
  box-shadow: 0 12px 26px rgba(138,43,226,0.18);
  transition: filter 0.2s, transform 0.1s;
}

.login-page .btn-primary.btn-block:hover {
  filter: brightness(0.98);
}

.login-page .btn-primary.btn-block:active {
  transform: translateY(1px);
}

.login-page .btn-primary.btn-block:focus-visible {
  outline: 2px solid var(--brand-accent);
  outline-offset: 2px;
}

.login-page .btn-primary.btn-block.is-loading {
  pointer-events: none;
  opacity: 0.85;
}

.login-page .btn-primary.btn-block.is-loading .btn-text {
  visibility: hidden;
}

.login-page .btn-primary.btn-block.is-loading .btn-spinner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-page .btn-primary.btn-block .btn-spinner {
  display: none;
}

.login-page .btn-primary.btn-block.is-loading .btn-spinner {
  display: flex;
}

/* Enlaces */
.login-page a.text-center {
  color: var(--brand-primary);
  font-weight: 600;
  text-decoration: none;
}

.login-page a.text-center:hover {
  text-decoration: underline;
}

.login-page a.text-center:focus-visible {
  outline: 2px solid var(--brand-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Footer */
.login-page .footer-note {
  margin-top: 14px;
  color: rgba(255,255,255,0.75);
  font-size: 0.8125rem;
}

/* Alerta de error */
.login-page .alert.alert-danger {
  border-radius: 14px;
  border: 1px solid rgba(220,53,69,0.25);
  background: rgba(220,53,69,0.1);
  color: #b02a37;
}

/* Checkbox "Recuérdame" */
.login-page .icheck-primary label {
  cursor: pointer;
  user-select: none;
}

/* Responsive: menos padding en móvil */
@media (max-width: 480px) {
  .login-page .content {
    padding: 16px !important;
  }
  .login-page .login-card-body {
    padding: 20px !important;
  }
}