.tm-split__rail{flex:0 0 auto;display:flex;align-items:center;justify-content:center;inline-size:40px;min-block-size:0;padding:0;border:0;border-inline-end:1px solid var(--tm-admin-border,#e5e7eb);background:var(--tm-admin-surface-muted,#f9fafb);color:var(--tm-admin-text-body,#1a1a1a);cursor:pointer;font:inherit}.tm-split__rail:hover{background:var(--tm-admin-surface,#ffffff)}.tm-split__rail:focus-visible{outline:2px solid var(--tm-color-primary,#2563eb);outline-offset:-2px}.tm-split__rail--map{border-inline-end:0;border-inline-start:1px solid var(--tm-admin-border,#e5e7eb)}.tm-split__rail-label{writing-mode:vertical-rl;transform:rotate(180deg);white-space:nowrap;font-size:12px;letter-spacing:.02em;display:flex;align-items:center;gap:8px}.tm-split-modes{display:inline-flex;align-items:center;gap:2px;padding:2px;border:1px solid var(--tm-admin-border,#e5e7eb);border-radius:var(--tm-radius-md,6px);background:var(--tm-admin-surface-muted,#f9fafb)}.tm-split-modes__btn{min-block-size:32px;min-inline-size:44px;padding:0 10px;border:0;border-radius:var(--tm-radius-sm,4px);background:transparent;color:var(--tm-admin-text-body,#1a1a1a);font:inherit;font-size:13px;cursor:pointer}.tm-split-modes__btn:hover{background:var(--tm-admin-surface,#ffffff)}.tm-split-modes__btn:focus-visible{outline:2px solid var(--tm-color-primary,#2563eb);outline-offset:-2px}.tm-split-modes__btn[aria-checked=true]{background:var(--tm-admin-surface,#ffffff);box-shadow:0 1px 2px rgb(0 0 0/10%);font-weight:600}@media (prefers-reduced-motion:no-preference){.tm-split__pane--animated{transition:flex-basis .18s ease,inline-size .18s ease}}