.km-switch { display:flex; gap:6px; flex-wrap:wrap; margin-right:auto; }
.km-switch button[aria-selected="true"] { background:var(--accent-dim); color:var(--fg-bright); border-color:var(--accent-border); }
[hidden] { display:none !important; }
.km-view { padding:2rem 3.5rem 3rem; font-family:var(--ui); }
.km-heading { display:flex; align-items:flex-start; justify-content:space-between; flex-wrap:wrap; gap:16px; margin-bottom:20px; }
.km-heading h2 { font-family:var(--display); font-size:28px; font-weight:500; color:var(--fg-bright); margin-bottom:8px; }
.km-subtitle { color:var(--fg-mid); font-size:13px; line-height:1.7; }
.km-tools { display:flex; gap:8px; flex-wrap:wrap; align-items:center; }
.km-search { min-width:0; width:240px; max-width:100%; background:var(--input-bg); color:var(--fg); border:1px solid var(--border-mid); border-radius:4px; padding:10px 12px; font:inherit; font-size:13px; }
.km-search::placeholder { color:var(--fg-mid); }
.km-layout { display:grid; grid-template-columns:minmax(0,1.1fr) minmax(0,1fr); gap:32px; align-items:start; }
.km-root { padding:12px 0; font-size:15px; font-weight:500; color:var(--fg-bright); }
.km-tree details { border-left:1px solid var(--border-mid); margin-left:6px; padding-left:18px; }
.km-tree summary { position:relative; padding:12px 0; cursor:pointer; color:var(--fg); font-size:14px; }
.km-tree summary::before { content:''; position:absolute; left:-18px; top:22px; width:12px; border-top:1px solid var(--border-mid); }
.km-priority { margin-left:8px; font-size:11px; color:var(--fg-mid); }
.km-leaves { display:flex; flex-direction:column; gap:3px; padding-bottom:12px; margin-left:8px; border-left:1px solid var(--border); }
.km-node { position:relative; text-align:left; border:0; padding:9px 12px 9px 18px; background:transparent; color:var(--fg-mid); font:inherit; font-size:13px; line-height:1.5; cursor:pointer; overflow-wrap:anywhere; }
.km-node::before { content:''; position:absolute; left:0; top:19px; width:10px; border-top:1px solid var(--border); }
.km-node:hover { background:var(--row-hover); color:var(--fg-bright); }
.km-node[aria-pressed="true"] { background:var(--accent-dim); color:var(--fg-bright); font-weight:500; }
.km-detail { position:sticky; top:24px; border-top:1px solid var(--border-mid); padding-top:20px; min-width:0; }
.km-detail h3 { font-size:22px; font-weight:500; color:var(--fg-bright); line-height:1.5; }
.km-kicker { color:var(--fg-mid); font-size:11px; letter-spacing:.12em; margin-bottom:10px; }
.km-description,.km-goal { font-size:14px; line-height:1.9; margin-top:14px; overflow-wrap:anywhere; }
.km-goal { color:var(--fg-mid); }
.km-detail h4 { font-size:12px; color:var(--fg-mid); font-weight:500; margin:24px 0 10px; }
.km-links { display:flex; flex-wrap:wrap; gap:8px; }
.km-related { padding:8px 10px; border:1px solid var(--border-mid); border-radius:4px; background:transparent; color:var(--fg); font:inherit; font-size:12px; cursor:pointer; }
.km-related:hover { background:var(--accent-dim); }
.km-note { display:block; width:100%; text-align:left; padding:12px 0; border:0; border-bottom:1px solid var(--border); background:transparent; color:var(--fg); font:inherit; font-size:13px; line-height:1.6; cursor:pointer; }
.km-note small { display:block; color:var(--fg-mid); margin-top:4px; font-size:11px; }
.km-resource { display:block; color:var(--accent); font-size:13px; line-height:1.6; padding:5px 0; text-decoration:none; overflow-wrap:anywhere; }
.km-resource:hover { text-decoration:underline; }
.km-empty { color:var(--fg-mid); font-size:13px; padding:14px 0; line-height:1.8; }
.km-node:focus-visible,.km-related:focus-visible,.km-note:focus-visible,.km-tree summary:focus-visible { outline:2px solid var(--accent); outline-offset:3px; }
@media(max-width:900px) { .km-view{padding:24px;} .km-layout{gap:22px;} }
@media(max-width:640px) { .km-view{padding:20px 16px;} .km-layout{grid-template-columns:1fr;} .km-detail{position:static;} .km-heading h2{font-size:24px;} .km-search{width:100%;} .km-tools{width:100%;} }
@media(pointer:coarse) { .km-node,.km-related,.km-note { min-height:44px; } }
/* Keep the reading surface clear while retaining skins, music and guestbook. */
body.in-knowledge-map .photo-pin { opacity:0 !important; pointer-events:none !important; }
body.in-knowledge-map #watchRail { opacity:0; pointer-events:none; }
@media(max-width:640px) { .km-switch { width:100%; } }