.app-modal {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    visibility: hidden;
    pointer-events: none;
    transition: visibility 0s linear 0.4s;
}

    .app-modal.open {
        visibility: visible;
        pointer-events: auto;
        transition-delay: 0s;
    }

.app-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    opacity: 0;
    transition: opacity 0.35s ease;
}

.app-modal.open .app-modal__backdrop {
    opacity: 1;
}

.app-modal__panel {
    position: relative;
    z-index: 1;
    width: 100%;
    max-height: 100dvh;
    overflow-y: auto;
    padding: 1rem;
    background: var(--app-surface);
    border: 1px solid var(--app-border);
    border-bottom: 0;
    border-radius: 1rem 1rem 0 0;
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.app-modal.open .app-modal__panel {
    transform: translateY(0);
}

.app-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.app-modal__close {
    border: 0;
    background: transparent;
    color: var(--app-text);
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-open {
    overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
    .app-modal, .app-modal__panel, .app-modal__backdrop { transition: none; }
}