/* ==========================================================================
   ADMIN AUTH CARD - Sonora Music Hub Dark Theme
   Adaptado del módulo reutilizable admin-auth-card (Obsidian Vault)
   Paleta: #121214 (base) / #131c33 (surface) / #00F5D4 (accent) / #1E3A8A (blue)
   ========================================================================== */

:root {
  --auth-bg-overlay: #121214;
  --auth-bg-surface: #131c33;
  --auth-accent: #00F5D4;
  --auth-accent-hover: #26f8dd;
  --auth-accent-subtle: rgba(0, 245, 212, 0.1);
  --auth-accent-glow: rgba(0, 245, 212, 0.45);
  --auth-gradient-start: #1E3A8A;
  --auth-gradient-end: #00F5D4;
  --auth-title-color: #FFFFFF;
  --auth-text-muted: #94A3B8;
  --auth-text-body: #CBD5E1;
  --auth-border: rgba(30, 58, 138, 0.45);
  --auth-border-subtle: rgba(30, 58, 138, 0.25);
  --auth-input-bg: #0d1424;
  --auth-input-focus-bg: #172442;
  --auth-danger: #ef4444;
  --auth-danger-bg: rgba(239, 68, 68, 0.12);
  --auth-success: #00F5D4;
  --auth-success-bg: rgba(0, 245, 212, 0.1);
  --auth-radius: 18px;
  --auth-radius-md: 12px;
  --auth-radius-sm: 6px;
}

/* Overlay de pantalla completa */
.auth-screen-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--auth-bg-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Lora', serif;
}

.auth-wrapper {
  width: 100%;
  max-width: 440px;
  padding: 1rem;
  animation: fadeInAuth 0.5s ease-out;
}

@keyframes fadeInAuth {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.auth-card {
  background-color: var(--auth-bg-surface);
  border-radius: var(--auth-radius);
  padding: 2.75rem 2.25rem;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 40px rgba(30, 58, 138, 0.15);
  border: 1px solid var(--auth-border);
  position: relative;
  overflow: hidden;
}

/* Línea decorativa superior en gradiente */
.auth-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--auth-gradient-start), var(--auth-gradient-end));
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--auth-accent);
  background: var(--auth-accent-subtle);
  padding: 0.35rem 0.85rem;
  border-radius: 50px;
  margin-bottom: 0.85rem;
  text-transform: uppercase;
}

.auth-brand {
  font-family: 'Lora', serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--auth-title-color);
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--auth-title-color), var(--auth-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-desc {
  font-size: 0.92rem;
  color: var(--auth-text-muted);
  line-height: 1.5;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Alertas de error y éxito */
.alert-box {
  padding: 0.85rem 1rem;
  border-radius: var(--auth-radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  line-height: 1.4;
  animation: fadeInAuth 0.3s ease;
}

.alert-box.alert-error {
  background-color: var(--auth-danger-bg);
  color: var(--auth-danger);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.alert-box.alert-success {
  background-color: var(--auth-success-bg);
  color: var(--auth-success);
  border: 1px solid rgba(0, 245, 212, 0.2);
}

.auth-form .form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.auth-form .form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--auth-text-body);
}

/* Ocultar botón nativo de revelar contraseña de Edge e Internet Explorer */
input[type="password"]::-ms-reveal,
input[type="password"]::-ms-clear {
  display: none !important;
}

.auth-form .input-container {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.auth-form .input-icon {
  position: absolute;
  left: 1rem;
  width: 18px;
  height: 18px;
  color: var(--auth-text-muted);
  pointer-events: none;
  transition: color 0.2s ease;
  z-index: 5;
}

.auth-form .form-input {
  width: 100%;
  padding: 0.85rem 3rem 0.85rem 2.75rem !important;
  font-family: 'Lora', serif;
  font-size: 0.95rem;
  color: var(--auth-title-color);
  background-color: var(--auth-input-bg);
  border: 1.5px solid var(--auth-border);
  border-radius: var(--auth-radius-md);
  outline: none;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.auth-form .form-input::placeholder {
  color: rgba(148, 163, 184, 0.5);
}

.auth-form .form-input:focus {
  background-color: var(--auth-input-focus-bg);
  border-color: var(--auth-accent);
  box-shadow: 0 0 0 4px rgba(0, 245, 212, 0.1);
}

.auth-form .form-input:focus ~ .input-icon {
  color: var(--auth-accent);
}

.toggle-password-btn {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 25;
  width: 34px;
  height: 34px;
  padding: 0;
  margin: 0;
  color: var(--auth-text-muted);
  border-radius: var(--auth-radius-sm);
  background: transparent !important;
  border: none !important;
  outline: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease, transform 0.15s ease;
  pointer-events: auto !important;
  -webkit-appearance: none;
  appearance: none;
}

.toggle-password-btn:hover {
  color: var(--auth-accent) !important;
}

.toggle-password-btn:active {
  transform: translateY(-50%) scale(0.92);
}

.toggle-password-btn svg {
  width: 20px;
  height: 20px;
  pointer-events: none;
  display: block;
}

/* Botón principal de login */
.auth-form .btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, var(--auth-accent), #00c4a7);
  color: #071018;
  font-family: 'Lora', serif;
  font-weight: 700;
  font-size: 0.96rem;
  padding: 0.9rem 1.5rem;
  border-radius: var(--auth-radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 4px 18px var(--auth-accent-glow);
  width: 100%;
  margin-top: 0.25rem;
}

.auth-form .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--auth-accent-glow);
  filter: brightness(1.08);
}

.auth-form .btn-primary:active {
  transform: translateY(0);
}

.auth-form .btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.auth-form .btn-primary .btn-arrow {
  width: 18px;
  height: 18px;
  transition: transform 0.2s ease;
}

.auth-form .btn-primary:hover .btn-arrow {
  transform: translateX(4px);
}

.auth-footer {
  margin-top: 1.75rem;
  text-align: center;
  padding-top: 1.25rem;
  border-top: 1px solid var(--auth-border-subtle);
}

.auth-footer .version-text {
  font-size: 0.78rem;
  color: var(--auth-text-muted);
  opacity: 0.6;
}

@media (max-width: 480px) {
  .auth-card {
    padding: 2rem 1.5rem;
  }

  .auth-brand {
    font-size: 1.8rem;
  }
}