.toolbox-install {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  color: var(--text);
  overflow-wrap: anywhere;
}
.auth-panel > .toolbox-install { width: min(450px, 100%); margin: 0 0 18px; }
.auth-panel:has(> .toolbox-install:not([hidden])) { align-content: start; }
.workspace > .toolbox-install { margin: 16px 28px 0; max-width: 680px; }
.install-heading { display: flex; align-items: flex-start; gap: 12px; }
.install-heading > img { flex: 0 0 44px; border-radius: 12px; }
.install-heading h2 { margin: 0; font-size: 1rem; line-height: 1.3; }
.toolbox-install p { margin: 6px 0 0; color: var(--muted); font-size: .83rem; line-height: 1.5; }
.install-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.toolbox-install button, .toolbox-install [data-install-open] { min-height: 44px; padding: 10px 12px; font-size: .8rem; }
.toolbox-install [data-install-open] { display: inline-flex; align-items: center; text-decoration: none; }
.toolbox-install .install-hint { font-size: .72rem; margin-top: 10px; }
.toolbox-install h3 { margin: 18px 0 12px; font-size: .85rem; }
.install-steps { margin: 0; padding: 0; list-style: none; counter-reset: install-step; display: grid; gap: 16px; }
.install-steps li { display: grid; grid-template-columns: 38px minmax(0, 1fr); align-items: start; gap: 12px; counter-increment: install-step; }
.install-steps strong { font-size: .85rem; }
.install-steps strong::before { content: counter(install-step) ". "; }
.install-step-icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; background: var(--surface-2); color: var(--brand-deep); }
:root[data-theme=dark] .install-step-icon { color: var(--brand); }
.install-step-icon svg { width: 24px; height: 24px; }
.install-step-icon img { border-radius: 9px; }
.install-transfer { display: grid; gap: 8px; margin-top: 16px; }
.install-transfer label { font-size: .8rem; font-weight: 700; }
.install-transfer input { width: 100%; min-width: 0; padding: 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface-2); color: var(--text); font-size: 16px; }
@media (max-width: 760px) {
  .workspace > .toolbox-install { margin: 14px 15px 0; }
}
@media (display-mode: standalone), (display-mode: fullscreen), (display-mode: minimal-ui) {
  .toolbox-install { display: none !important; }
}

#toolbox-install-sheet {width: min(560px, calc(100vw - 24px)); max-height: calc(100dvh - 24px - env(safe-area-inset-top) - env(safe-area-inset-bottom)); padding: 0; border: 1px solid var(--line); border-radius: 24px; background: var(--surface); color: var(--text); overflow: auto;}
.install-sheet-card {padding: 20px; min-width: 0;}
.install-sheet-card header {display: flex; justify-content: space-between; gap: 12px; align-items: flex-start;}
.install-sheet-card h2 {margin: 0; font-size: 1.4rem;}
.install-sheet-card p, .install-sheet-card figcaption {color: var(--muted); line-height: 1.5;}
.install-sheet-platforms {display: flex; gap: 8px; margin: 20px 0;}
.install-sheet-platforms button {flex: 1; border-radius: 999px;}
.install-sheet-platforms [aria-pressed="true"] {background: var(--surface-2); color: var(--text); border-color: var(--text);}
.install-sheet-icon {display: grid; justify-items: center; gap: 12px; margin: 24px 0; text-align: center; font-size: .85rem;}
.install-sheet-card footer {display: flex; justify-content: flex-end; padding: 18px 0 max(0px, env(safe-area-inset-bottom));}
.install-sheet-card #toolbox-install .install-actions, .install-sheet-card #install-session-hint {display: none;}
.install-sheet-card input {max-width: 100%; min-width: 0;}
.sidebar [data-shell-install] {color: var(--text); padding: 10px 0;}