.app {
    display: flex;
    flex-direction: column;
    gap: 12px;
    height: 100vh;
    padding: 12px;
}

.topbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px;
    padding: 10px 16px;
    background: var(--panel);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.workspace {
    flex: 1;
    display: flex;
    gap: 12px;
    min-height: 0;
}

.library {
    flex: 0 0 262px;
    width: 262px;
    padding: 10px;
    overflow-y: auto;
    background: var(--panel);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.timeline-wrap {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--panel);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.timeline-scroll {
    flex: 1;
    overflow: auto;
    position: relative;
}

.timeline {
    position: relative;
    min-width: 100%;
}