/* MÓDULO DE AUTENTICACIÓN — Split-Screen Blanco y Negro (Pantalla Completa)*/

body {
  min-height: 100vh;
  background: #ffffff;
  color: var(--color-text, #0f172a);
  overflow-x: hidden;
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
}

/* PRELOADER BioMax */
#app-preloader {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(
    ellipse 80% 60% at 50% 40%,
    #152238 0%,
    #0b1220 45%,
    #060a12 100%
  );
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 99999;
  overflow: hidden;
  transition:
    opacity 0.7s ease,
    visibility 0.7s ease;
}

#app-preloader.fade-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Fondo decorativo */
.preloader-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.preloader-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.45;
  animation: orbFloat 10s ease-in-out infinite;
}

.preloader-orb--1 {
  width: 320px;
  height: 320px;
  background: rgba(37, 99, 235, 0.35);
  top: -80px;
  left: -60px;
}

.preloader-orb--2 {
  width: 280px;
  height: 280px;
  background: rgba(99, 102, 241, 0.25);
  bottom: -60px;
  right: -40px;
  animation-delay: -3s;
}

.preloader-orb--3 {
  width: 180px;
  height: 180px;
  background: rgba(56, 189, 248, 0.18);
  top: 45%;
  left: 55%;
  animation-delay: -6s;
}

.preloader-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 400px;
  width: 90%;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.preloader-logo-wrapper {
  margin-bottom: 1.5rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preloader-logo-glow {
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(96, 165, 250, 0.35) 0%,
    transparent 70%
  );
  animation: glowPulse 2.4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes glowPulse {
  0%,
  100% {
    opacity: 0.55;
    transform: scale(0.92);
  }
  50% {
    opacity: 1;
    transform: scale(1.08);
  }
}

.preloader-logo-wrapper img {
  position: relative;
  z-index: 1;
  max-width: 120px;
  height: auto;
  filter: drop-shadow(0 8px 28px rgba(0, 0, 0, 0.55));
  animation: pulseLogo 2.2s infinite ease-in-out;
}

.preloader-logo-placeholder {
  position: relative;
  z-index: 1;
  width: 88px;
  height: 88px;
  border-radius: 22px;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.06em;
  background: linear-gradient(145deg, #1e293b 0%, #0f172a 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  animation: pulseLogo 2.2s infinite ease-in-out;
}

@keyframes pulseLogo {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.96;
  }
  50% {
    transform: scale(1.04);
    opacity: 1;
  }
}

.preloader-title {
  color: #ffffff;
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 0.35rem 0;
  letter-spacing: -0.03em;
}

.preloader-subtitle {
  color: #94a3b8;
  font-size: 0.875rem;
  margin: 0 0 2rem 0;
}

.preloader-progress-block {
  width: 100%;
  transition:
    opacity 0.35s ease,
    transform 0.35s ease;
}

.preloader-progress-block.is-done {
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  height: 0;
  margin: 0;
  overflow: hidden;
}

.preloader-bar-container {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.35);
}

.preloader-bar-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #e2e8f0 0%, #ffffff 50%, #93c5fd 100%);
  border-radius: 999px;
  transition: width 0.15s linear;
  box-shadow: 0 0 14px rgba(147, 197, 253, 0.65);
}

.preloader-percentage {
  display: block;
  margin-top: 0.75rem;
  color: #cbd5e1;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

/* Botón Entrar (aparece al 100%) */
.preloader-enter-btn {
  margin-top: 0.5rem;
  min-width: 200px;
  padding: 0.85rem 1.75rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 0.75rem;
  background: #ffffff;
  color: #0f172a;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease,
    opacity 0.35s ease;
  animation: enterIn 0.45s ease both;
}

.preloader-enter-btn[hidden] {
  display: none !important;
}

.preloader-enter-btn:hover {
  transform: translateY(-2px);
  background: #f8fafc;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.4);
}

.preloader-enter-btn:active {
  transform: translateY(0);
}

@keyframes enterIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* LAYOUT SPLIT-SCREEN */
.auth-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
  width: 100vw;
  margin: 0;
  padding: 0;
  background: #ffffff;
}

/* Panel Izquierdo: Hero Oscuro con Fondo e Imagen */
.auth-hero-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-10, 2.5rem) var(--space-12, 3rem);
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  border-right: 1px solid var(--color-border, #e2e8f0);
}

.hero-top-badge {
  position: relative;
  z-index: 2;
}

.brand-tag,
.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(9, 13, 22, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-pill, 999px);
  font-size: var(--text-xs, 0.75rem);
  font-weight: var(--weight-semibold, 600);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ffffff;
  backdrop-filter: var(--glass-blur-sm, blur(8px));
}

.hero-bottom-card {
  position: relative;
  z-index: 2;
  background: rgba(9, 13, 22, 0.75);
  backdrop-filter: var(--glass-blur, blur(14px));
  -webkit-backdrop-filter: var(--glass-blur, blur(14px));
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xl, 1.25rem);
  padding: var(--space-6, 1.5rem);
  box-shadow: var(--shadow-modal, 0 20px 40px rgba(0, 0, 0, 0.3));
}

.hero-bottom-card h1 {
  font-size: clamp(1.75rem, 2.5vw, 2.25rem);
  font-weight: var(--weight-bold, 700);
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin: 0 0 var(--space-2, 0.5rem) 0;
}

.hero-bottom-card p {
  font-size: var(--text-md, 0.9375rem);
  line-height: var(--leading-normal, 1.55);
  color: #cbd5e1;
  margin: 0;
}

.hero-footer {
  position: relative;
  z-index: 2;
  margin-top: var(--space-8, 2rem);
}

.hero-footer p {
  font-size: var(--text-xs, 0.75rem);
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}

/* Panel Derecho: Formulario */
.auth-form-panel {
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8, 2rem) var(--space-6, 1.5rem);
  position: relative;
}

.form-panel-inner {
  width: 100%;
  max-width: 400px;
}

.auth-header {
  text-align: center;
  margin-bottom: var(--space-6, 1.5rem);
}

.logo-box {
  width: 56px;
  height: 56px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-xl, 1.25rem);
  margin: 0 auto var(--space-4, 1rem) auto;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--shadow-xs, 0 1px 2px rgba(15, 23, 42, 0.04));
}

.logo-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.logo-box span {
  font-size: var(--text-xs, 0.75rem);
  font-weight: var(--weight-bold, 700);
  color: #0f172a;
  letter-spacing: 0.05em;
}

.auth-header h2,
.auth-header #form-title {
  font-size: var(--text-2xl, 1.875rem);
  font-weight: var(--weight-bold, 700);
  color: #0f172a;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.auth-header p,
.auth-header #form-subtitle {
  color: #64748b;
  font-size: var(--text-sm, 0.8125rem);
}

.auth-form {
  width: 100%;
}

.form-group {
  margin-bottom: var(--space-4, 1rem);
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: var(--weight-semibold, 600);
  font-size: var(--text-xs, 0.75rem);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #0f172a;
}

.form-group input {
  width: 100%;
  padding: 0.75rem var(--space-4, 1rem);
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md, 0.75rem);
  background: #f8fafc;
  font-size: var(--text-md, 0.9375rem);
  color: #0f172a;
  box-sizing: border-box;
  transition: all 0.2s ease;
}

.form-group input::placeholder {
  color: #94a3b8;
}

.form-group input:hover {
  border-color: #94a3b8;
  background: #ffffff;
}

.form-group input:focus {
  outline: none;
  border-color: #0f172a;
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.12);
}

.btn-primary {
  width: 100%;
  padding: 0.85rem var(--space-4, 1rem);
  background: #090d16;
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md, 0.75rem);
  font-weight: var(--weight-semibold, 600);
  font-size: var(--text-md, 0.9375rem);
  cursor: pointer;
  margin-top: var(--space-3, 0.75rem);
  box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.1));
  transition: all 0.2s ease;
}

.btn-primary:hover:not(:disabled) {
  background: #1e293b;
  box-shadow: var(--shadow-card, 0 4px 16px rgba(15, 23, 42, 0.15));
  transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(1px);
}

.auth-switch {
  text-align: center;
  margin-top: var(--space-6, 1.5rem);
  font-size: var(--text-sm, 0.8125rem);
  color: #64748b;
}

.auth-switch a {
  color: #2563eb;
  font-weight: var(--weight-semibold, 600);
  text-decoration: none;
  transition: color 0.2s ease;
}

.auth-switch a:hover {
  color: #1d4ed8;
  text-decoration: underline;
}

.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md, 0.75rem);
  font-size: var(--text-sm, 0.8125rem);
  margin-bottom: var(--space-4, 1rem);
  border: 1px solid transparent;
}

.alert.error {
  background: var(--color-danger-soft, #fee2e2);
  color: var(--color-danger, #dc2626);
  border-color: #fecaca;
}

.alert.success {
  background: var(--color-success-soft, #dcfce7);
  color: var(--color-success, #16a34a);
  border-color: #bbf7d0;
}

@media (max-width: 900px) {
  .auth-wrapper {
    grid-template-columns: 1fr;
  }

  .auth-hero-panel {
    display: none;
  }

  .auth-form-panel {
    min-height: 100vh;
    padding: var(--space-8, 2rem) var(--space-4, 1rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .preloader-orb,
  .preloader-logo-glow,
  .preloader-logo-wrapper img,
  .preloader-logo-placeholder {
    animation: none;
  }
}