/**
 * MODERN ALERTS & TOASTS COMPONENTS
 * Beautiful alerts với icons, animations, và modern styling
 * Created: 2026-03-06
 */

/* ============================================
   BASE ALERT IMPROVEMENTS
   ============================================ */
.alert {
    position: relative;
    padding: var(--spacing-4) var(--spacing-5);
    margin-bottom: var(--spacing-4);
    border: none;
    border-radius: var(--radius-lg);
    border-left: 4px solid;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    box-shadow: var(--shadow-sm);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-dismissible {
    padding-right: var(--spacing-10);
}

.alert .btn-close {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    opacity: 0.5;
    transition: opacity var(--transition-fast);
}

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

/* ============================================
   ALERT VARIANTS
   ============================================ */
.alert-primary {
    background: rgba(59, 130, 246, 0.1);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border-left-color: var(--color-success);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
    border-left-color: var(--color-warning);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
    border-left-color: var(--color-danger);
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--color-info);
    border-left-color: var(--color-info);
}

/* ============================================
   ALERT WITH ICON
   ============================================ */
.alert-icon {
    display: flex;
    align-items: flex-start;
}

.alert-icon .alert-icon-wrapper {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    margin-right: var(--spacing-3);
}

.alert-icon .alert-content {
    flex: 1;
}

.alert-icon .alert-title {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-base);
}

.alert-icon .alert-message {
    margin: 0;
    opacity: 0.9;
    font-size: var(--font-size-sm);
}

/* Icon backgrounds */
.alert-primary .alert-icon-wrapper {
    background: var(--color-primary);
    color: white;
}

.alert-success .alert-icon-wrapper {
    background: var(--color-success);
    color: white;
}

.alert-warning .alert-icon-wrapper {
    background: var(--color-warning);
    color: white;
}

.alert-danger .alert-icon-wrapper {
    background: var(--color-danger);
    color: white;
}

/* ============================================
   SOLID ALERTS
   ============================================ */
.alert-solid-primary {
    background: var(--color-primary);
    color: white;
    border-left-color: rgba(255, 255, 255, 0.5);
}

.alert-solid-success {
    background: var(--color-success);
    color: white;
    border-left-color: rgba(255, 255, 255, 0.5);
}

.alert-solid-warning {
    background: var(--color-warning);
    color: white;
    border-left-color: rgba(255, 255, 255, 0.5);
}

.alert-solid-danger {
    background: var(--color-danger);
    color: white;
    border-left-color: rgba(255, 255, 255, 0.5);
}

.alert-solid-primary .btn-close,
.alert-solid-success .btn-close,
.alert-solid-warning .btn-close,
.alert-solid-danger .btn-close {
    filter: brightness(0) invert(1);
}

/* ============================================
   GRADIENT ALERTS
   ============================================ */
.alert-gradient-primary {
    background: var(--gradient-primary);
    color: white;
    border-left: none;
}

.alert-gradient-success {
    background: var(--gradient-success);
    color: white;
    border-left: none;
}

.alert-gradient-warning {
    background: var(--gradient-warning);
    color: white;
    border-left: none;
}

.alert-gradient-danger {
    background: var(--gradient-danger);
    color: white;
    border-left: none;
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
    position: fixed;
    z-index: var(--z-toast);
    pointer-events: none;
}

.toast-container.top-right {
    top: var(--spacing-6);
    right: var(--spacing-6);
}

.toast-container.top-left {
    top: var(--spacing-6);
    left: var(--spacing-6);
}

.toast-container.bottom-right {
    bottom: var(--spacing-6);
    right: var(--spacing-6);
}

.toast-container.bottom-left {
    bottom: var(--spacing-6);
    left: var(--spacing-6);
}

.toast-container.top-center {
    top: var(--spacing-6);
    left: 50%;
    transform: translateX(-50%);
}

.toast-container.bottom-center {
    bottom: var(--spacing-6);
    left: 50%;
    transform: translateX(-50%);
}

.toast {
    pointer-events: auto;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    margin-bottom: var(--spacing-3);
    min-width: 300px;
    max-width: 400px;
    overflow: hidden;
    animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-200);
}

.toast-header .toast-icon {
    width: 20px;
    height: 20px;
    margin-right: var(--spacing-3);
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast-header .toast-title {
    flex: 1;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    margin: 0;
}

.toast-header .toast-time {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    margin: 0 var(--spacing-3);
}

.toast-header .btn-close {
    margin: 0;
}

.toast-body {
    padding: var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--color-text);
}

/* Toast variants */
.toast-success .toast-header {
    background: rgba(16, 185, 129, 0.1);
}

.toast-success .toast-icon {
    color: var(--color-success);
}

.toast-warning .toast-header {
    background: rgba(245, 158, 11, 0.1);
}

.toast-warning .toast-icon {
    color: var(--color-warning);
}

.toast-danger .toast-header {
    background: rgba(239, 68, 68, 0.1);
}

.toast-danger .toast-icon {
    color: var(--color-danger);
}

.toast-info .toast-header {
    background: rgba(59, 130, 246, 0.1);
}

.toast-info .toast-icon {
    color: var(--color-primary);
}

/* ============================================
   PROGRESS BAR IN ALERT
   ============================================ */
.alert-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: currentColor;
    opacity: 0.3;
    animation: progress 5s linear;
}

@keyframes progress {
    from {
        width: 100%;
    }
    to {
        width: 0%;
    }
}

/* ============================================
   DISMISSIBLE ANIMATION
   ============================================ */
.alert.fade-out {
    animation: fadeOut 0.3s ease-out forwards;
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* ============================================
   ALERT ACTIONS
   ============================================ */
.alert-actions {
    display: flex;
    gap: var(--spacing-2);
    margin-top: var(--spacing-3);
}

.alert-actions .btn {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-sm);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 576px) {
    .toast {
        min-width: calc(100vw - 2 * var(--spacing-6));
        max-width: calc(100vw - 2 * var(--spacing-6));
    }

    .toast-container {
        left: var(--spacing-4) !important;
        right: var(--spacing-4) !important;
        transform: none !important;
    }

    .alert {
        padding: var(--spacing-3) var(--spacing-4);
    }
}

/* ============================================
   DARK MODE SUPPORT
   ============================================ */
[data-theme="dark"] .toast {
    background: var(--bg-primary);
    border-color: var(--border-color);
}

[data-theme="dark"] .toast-header {
    background: var(--bg-secondary);
    border-bottom-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .toast-body {
    color: var(--text-primary);
}

[data-theme="dark"] .alert {
    border-color: var(--border-color);
}