#app-toast-root {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: min(22rem, calc(100vw - 2rem));
    pointer-events: none;
}

.app-toast {
    padding: 0.875rem 1rem;
    border-radius: 8px;
    font-size: 0.9375rem;
    line-height: 1.4;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.3s, transform 0.3s;
    pointer-events: auto;
    cursor: pointer;
}

.app-toast-visible {
    opacity: 1;
    transform: translateY(0);
}

.app-toast-info {
    background: #1e3a5f;
    color: #e8f0fe;
    border: 1px solid #3b6ea5;
}

.app-toast-success {
    background: #14532d;
    color: #dcfce7;
    border: 1px solid #22c55e;
}

.app-toast-error {
    background: #450a0a;
    color: #fecaca;
    border: 1px solid #ef4444;
}

.app-dialog-overlay {
    position: fixed;
    inset: 0;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}

.app-dialog-overlay.app-dialog-open {
    opacity: 1;
    visibility: visible;
}

.app-dialog {
    width: min(24rem, 100%);
    padding: 1.25rem;
    border-radius: 12px;
    background: var(--surface-elevated, #1a1a2e);
    color: var(--text-primary, #f1f5f9);
    border: 1px solid var(--border, #334155);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.app-dialog-title {
    margin: 0 0 0.5rem;
    font-size: 1.0625rem;
    font-weight: 600;
}

.app-dialog-message {
    margin: 0 0 1.25rem;
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--text-secondary, #cbd5e1);
}

.app-dialog-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

.app-dialog-actions .btn {
    min-width: 5rem;
}