/* ========================================
   LOGIN - CONTENEDOR PRINCIPAL
   ======================================== */

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-dark) 100%
  );
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

.login-container {
  width: 100%;
  max-width: 440px;
  padding: var(--spacing-lg);
}

/* ========================================
   TARJETA DE LOGIN
   ======================================== */

.login-card {
  background: var(--color-bg-card);
  border-radius: 16px;
  padding: var(--spacing-xl);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   HEADER
   ======================================== */

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.login-icon {
  font-size: 48px;
  color: var(--color-primary);
  display: block;
  margin-bottom: var(--spacing-md);
}

.login-header h1 {
  margin: 0 0 var(--spacing-sm) 0;
  font-size: var(--font-size-xxl);
  color: var(--color-text-primary);
  font-weight: 600;
}

.login-subtitle {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ========================================
   FORMULARIO
   ======================================== */

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

/* Form Groups */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-group label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-primary);
}

.form-group label .icon-sm {
  font-size: 18px;
  color: var(--color-text-secondary);
}

/* Inputs */
.form-group input {
  width: 100%;
  padding: 12px 16px;
  font-size: var(--font-size-base);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-base);
  color: var(--color-text-primary);
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 157, 214, 0.1);
}

.form-group input::placeholder {
  color: var(--color-text-light);
}

/* Password Input Wrapper */
.password-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.password-input-wrapper input {
  padding-right: 48px;
}

.toggle-password {
  position: absolute;
  right: 8px;
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 8px;
  border-radius: 4px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toggle-password:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.toggle-password .material-symbols-outlined {
  font-size: 20px;
}

/* ========================================
   MENSAJE DE ERROR
   ======================================== */

.error-message {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--color-danger);
  border-radius: 8px;
  color: var(--color-danger);
  font-size: var(--font-size-sm);
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-10px); }
  75% { transform: translateX(10px); }
}

.error-message .material-symbols-outlined {
  font-size: 20px;
}

/* ========================================
   BOTÓN DE LOGIN
   ======================================== */

.btn-login {
  width: 100%;
  padding: 14px 24px;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: white;
  background: var(--color-primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.btn-login:hover:not(:disabled) {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(74, 157, 214, 0.3);
}

.btn-login:active:not(:disabled) {
  transform: translateY(0);
}

.btn-login:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Loading State */
.btn-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* ========================================
   FOOTER
   ======================================== */

.login-footer {
  margin-top: var(--spacing-lg);
  text-align: center;
}

.login-footer p {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
  .login-container {
    padding: var(--spacing-md);
  }

  .login-card {
    padding: var(--spacing-lg);
  }

  .login-icon {
    font-size: 40px;
  }

  .login-header h1 {
    font-size: var(--font-size-xl);
  }
}

/* ========================================
   DARK MODE (automático desde variables.css)
   ======================================== */

@media (prefers-color-scheme: dark) {
  /* Los colores ya están definidos en variables.css */
  /* Aquí solo ajustes específicos del login si necesario */
  
  body {
    background: linear-gradient(
      135deg,
      #1e3a5f 0%,
      #0f172a 100%
    );
  }
}