/* ==============================================
   Toast Notification System
   ============================================== */
.toast-container {
    position: fixed;
    top: calc(var(--header-height, 60px) + var(--space-4));
    right: var(--space-4);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    pointer-events: none;
    max-width: 380px;
    width: calc(100% - var(--space-8));
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-35) var(--space-4);
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-lg);
    pointer-events: auto;
    transform: translateX(110%);
    opacity: 0;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    font-size: var(--text-md);
    line-height: 1.5;
    color: var(--color-text);
}

.toast.toast-show {
    transform: translateX(0);
    opacity: 1;
}

.toast.toast-hide {
    transform: translateX(110%);
    opacity: 0;
}

.toast-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 1px;
}

.toast-body {
    flex: 1;
    min-width: 0;
}

.toast-title {
    font-weight: var(--font-semibold);
    font-size: var(--text-md);
    margin-bottom: var(--space-05);
}

.toast-message {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    word-break: break-word;
}

.toast-close {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
    background: none;
    border: none;
    padding: 0;
    margin-top: 1px;
}

.toast-close:hover {
    color: var(--color-text);
}

/* Toast types — border accent + background tinting */
.toast-success {
    border-left: 3px solid var(--color-success);
    background: linear-gradient(135deg, hsl(var(--green-50)), var(--color-card-bg));
}
.toast-success .toast-icon { color: var(--color-success); }

.toast-error {
    border-left: 3px solid var(--color-error);
    background: linear-gradient(135deg, hsl(var(--red-50)), var(--color-card-bg));
}
.toast-error .toast-icon { color: var(--color-error); }

.toast-warning {
    border-left: 3px solid var(--color-warning);
    background: linear-gradient(135deg, hsl(var(--yellow-50)), var(--color-card-bg));
}
.toast-warning .toast-icon { color: var(--color-warning); }

.toast-info {
    border-left: 3px solid var(--color-info);
    background: linear-gradient(135deg, hsl(var(--blue-50)), var(--color-card-bg));
}
.toast-info .toast-icon { color: var(--color-info); }

/* Progress bar */
.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    background: var(--color-primary);
    border-radius: 0 0 0 var(--radius-card);
    transition: width linear;
}

.toast {
    position: relative;
    overflow: hidden;
}

/* Toast dark mode backgrounds */
[data-theme="dark"] .toast-success {
    background: linear-gradient(135deg, hsl(var(--green-900) / 0.3), var(--color-card-bg));
}
[data-theme="dark"] .toast-error {
    background: linear-gradient(135deg, hsl(var(--red-900) / 0.3), var(--color-card-bg));
}
[data-theme="dark"] .toast-warning {
    background: linear-gradient(135deg, hsl(var(--yellow-900) / 0.3), var(--color-card-bg));
}
[data-theme="dark"] .toast-info {
    background: linear-gradient(135deg, hsl(var(--blue-900) / 0.3), var(--color-card-bg));
}

/* Mobile */
@media (max-width: 640px) {
    .toast-container {
        top: auto;
        bottom: calc(var(--bottom-tab-height, 0px) + var(--space-4));
        left: var(--space-4);
        right: var(--space-4);
        max-width: none;
    }
}