/* ========================================
   ALERT SYSTEM
   ======================================== */

/* Floating notification alerts (top right) */
.alert.position-fixed {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: var(--z-alert);
  min-width: 320px;
  max-width: 400px;
  box-shadow: 0 4px 16px var(--theme-shadow-medium);
  pointer-events: auto;
}

/* Stack multiple notifications */
.alert.position-fixed + .alert.position-fixed {
  top: auto;
  margin-top: 12px;
}

/* Base alert styles */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  border: 1px solid;
  font-weight: 500;
  text-shadow: 0 1px 2px var(--theme-shadow-medium);
  box-shadow: 0 2px 4px var(--theme-shadow-medium);
  position: relative;
  z-index: var(--z-alert);
}

/* Success alerts */
.alert.alert-success {
  background: linear-gradient(135deg, var(--alert-success-bg-start) 0%, var(--alert-success-bg-end) 100%);
  border: 1px solid var(--alert-success-border);
  color: var(--alert-success-text);
  font-weight: 500;
  box-shadow: 
    0 4px 20px var(--theme-shadow-dark),
    inset 0 1px 0 var(--theme-white-20);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.alert.alert-success * {
  color: var(--alert-success-text);
}

/* Warning alerts */
.alert.alert-warning {
  background: linear-gradient(135deg, var(--alert-warning-bg-start) 0%, var(--alert-warning-bg-end) 100%);
  border: 1px solid var(--alert-warning-border);
  color: var(--alert-warning-text);
  font-weight: 500;
  box-shadow: 
    0 4px 20px var(--theme-shadow-dark),
    inset 0 1px 0 var(--theme-white-20);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.alert.alert-warning * {
  color: var(--alert-warning-text);
}

/* Error/Danger alerts */
.alert.alert-error,
.alert.alert-danger {
  background: linear-gradient(135deg, var(--alert-error-bg-start) 0%, var(--alert-error-bg-end) 100%);
  border: 1px solid var(--alert-error-border);
  color: var(--alert-error-text);
  font-weight: 500;
  box-shadow: 
    0 4px 20px var(--theme-shadow-dark),
    inset 0 1px 0 var(--theme-white-20);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.alert.alert-error *,
.alert.alert-danger * {
  color: var(--alert-error-text);
}

/* Info alerts */
.alert.alert-info {
  background: linear-gradient(135deg, var(--alert-info-bg-start) 0%, var(--alert-info-bg-end) 100%);
  border: 1px solid var(--alert-info-border);
  color: var(--alert-info-text);
  font-weight: 500;
  box-shadow: 
    0 4px 20px var(--theme-shadow-dark),
    inset 0 1px 0 var(--theme-white-20);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.alert.alert-info * {
  color: var(--alert-info-text);
}

/* Alert close button */
.alert-close {
  background: none;
  border: none;
  color: inherit;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0;
  margin-left: var(--spacing-sm);
  opacity: 0.7;
  transition: opacity 0.2s ease;
  float: right;
}

.alert-close:hover {
  opacity: 1;
}