/* =====================================================================
   BRAND TOKENS — edit these to rebrand the tool (colours, fonts).
   The four area colours drive the whole tree + panel.
   ===================================================================== */
:root{
  --paper:#F8F7F3;          /* app background        */
  --ink:#0C2E37;            /* primary text          */
  --muted:#5C7178;          /* secondary text        */
  --line:#DFDCD3;           /* borders / dividers     */

  /* Lief area palette — Navy / Pine / Salmon / Sunglow (see CLAUDE.md brand colours) */
  --ci:#035F76;   --ci-tint:#DCEAF4;   --ci-tag:#054A5C;   /* Communication & Interaction */
  --cl:#64A194;   --cl-tint:#DDEBE7;   --cl-tag:#3C5F58;   /* Cognition & Learning        */
  --semh:#F48B99; --semh-tint:#FDE6EA; --semh-tag:#9A4653; /* Social, Emotional & MH      */
  --sp:#FFCE4C;   --sp-tint:#FFF3D0;   --sp-tag:#6F5300;   /* Sensory & Physical          */

  --band-high:#64A194; --band-med:#C99A2E; --band-low:#9D9D9C;

  --font-head:"Cormorant Garamond", Georgia, serif;       /* page + panel titles only */
  --font-display:"Sora", system-ui, sans-serif;           /* UI chrome, labels, data  */
  --font-body:"Sora", system-ui, sans-serif;              /* body + node labels       */
}

*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:var(--font-body);color:var(--ink);background:var(--paper);display:flex;flex-direction:column;overflow-y:auto}
/* #app-shell reserves a full viewport height for the header/tree/panel app UI so it can
   never be squeezed to zero height by #lib-hero's content above it (the hero pushes the
   page into normal scroll; the app itself keeps its original fixed-viewport internal
   layout once reached). */
#app-shell{display:flex;flex-direction:column;min-height:100vh}
header{display:flex;align-items:center;gap:16px;padding:14px 22px;border-bottom:1px solid var(--line);background:var(--paper);z-index:5;flex-wrap:wrap}
.brand{display:flex;flex-direction:column;line-height:1.15}
.brand .kicker{font-family:var(--font-display);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600}
.brand h1{font-family:var(--font-head);font-weight:500;font-size:23px;margin:1px 0 0}
.spacer{flex:1}
.search{position:relative;display:flex;align-items:center}
.search input{font-family:var(--font-body);font-size:13px;padding:8px 12px 8px 32px;width:220px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink)}
.search input:focus{outline:2px solid var(--ci);outline-offset:1px;border-color:var(--ci)}
.search svg{position:absolute;left:10px;width:15px;height:15px;stroke:var(--muted);fill:none}
.controls{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.btn{font-family:var(--font-display);font-size:12px;font-weight:500;cursor:pointer;padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink)}
.btn:hover{border-color:var(--ci);color:var(--ci)}
.btn:focus-visible{outline:2px solid var(--ci);outline-offset:1px}
.btn.on{background:var(--ci);color:#fff;border-color:var(--ci)}
.sep{width:1px;height:22px;background:var(--line);margin:0 2px}
.saved{font-family:var(--font-display);font-size:11px;color:var(--band-high);font-weight:600;opacity:0;transition:opacity .3s}
.saved.show{opacity:1}

main{flex:1;display:flex;min-height:0}
#canvas{flex:1;min-width:0;position:relative}
svg{width:100%;height:100%;display:block;cursor:grab}
svg:active{cursor:grabbing}
/* Give the tree canvas the touch gesture: one finger pans, two fingers pinch-zoom.
   Without this the browser claims a one-finger drag as page scroll and d3 never pans.
   (To scroll the page on a phone, drag on the header/hero rather than the canvas.) */
#svg{touch-action:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}
.link{fill:none;stroke:#C4BFB2;stroke-opacity:.95}
.node-rect{cursor:pointer;transition:filter .15s}
.node-rect:hover{filter:brightness(.97)}
.node-label{pointer-events:none}
.toggle{cursor:pointer}
.toggle text{font-family:var(--font-display);font-weight:600;pointer-events:none;text-anchor:middle}
.band-glyph{pointer-events:none}
.node.match .node-rect{stroke:#111 !important;stroke-width:2.5px}

#panel{width:372px;flex-shrink:0;border-left:1px solid var(--line);background:#fff;display:flex;flex-direction:column;overflow-y:auto}
.p-pad{padding:22px}
.crumb{font-family:var(--font-display);font-size:11px;letter-spacing:.05em;color:var(--muted);text-transform:uppercase;font-weight:600;margin-bottom:10px;line-height:1.6}
.p-level{display:inline-block;font-family:var(--font-display);font-size:10.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;padding:3px 9px;border-radius:20px;margin-bottom:12px}
.p-title{font-family:var(--font-head);font-weight:500;font-size:26px;line-height:1.15;margin:0 0 6px}
.p-desc{font-size:13.5px;line-height:1.55;color:#33474D;margin:0 0 18px}
.p-prev{font-size:13px;line-height:1.5;color:var(--muted);margin:-8px 0 18px}
.p-prev b{color:var(--ink);font-family:var(--font-display);font-weight:600}
.band-panel{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px 15px;margin-bottom:18px}
.band-panel-top{display:flex;align-items:center;gap:9px;margin-bottom:8px}
.band-label{font-family:var(--font-display);font-weight:600;font-size:12.5px}
.band-context{font-size:11.5px;color:var(--muted);margin:0;line-height:1.5}
.band-context + .band-context{margin-top:6px}
.band-note{font-size:11px;color:var(--muted);font-style:italic;margin:8px 0 0;line-height:1.5}
.grounded{font-size:11.5px;line-height:1.6;color:var(--muted);margin:8px 0 0}
.band-panel .grounded{margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}
.grounded-lbl{font-family:var(--font-display);font-weight:600;color:var(--ink);margin-right:2px}
.src-link{color:var(--ci);text-decoration:none;word-break:break-word}
.src-link:hover{text-decoration:underline}
.src-sep{margin:0 6px;color:var(--line)}
.steps-h{display:flex;justify-content:space-between;align-items:center;gap:10px;font-family:var(--font-display);font-weight:600;font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin:4px 0 14px}
.mini-btn{font-family:var(--font-display);font-size:11px;font-weight:600;text-transform:none;letter-spacing:0;cursor:pointer;border:1px solid var(--line);background:#fff;border-radius:7px;padding:5px 10px;color:var(--ink)}
.mini-btn:hover{border-color:var(--ci);color:var(--ci)}
.step{border-left:2px solid var(--dot,var(--line));padding:0 0 16px 14px;position:relative}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:-5px;top:3px;width:8px;height:8px;border-radius:50%;background:var(--dot,#035F76)}
.step-top{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}
.step .lvl{display:inline-block;font-family:var(--font-display);font-size:10px;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);padding:2px 9px;border-radius:20px;background:#EFEDE6}
.copybtn{flex-shrink:0;font-family:var(--font-display);font-size:10.5px;font-weight:600;cursor:pointer;border:1px solid var(--line);background:#fff;border-radius:6px;padding:3px 8px;color:var(--muted)}
.copybtn:hover{border-color:var(--dot,#035F76);color:var(--dot,#035F76)}
.copybtn.done{border-color:var(--band-high);color:var(--band-high)}
.step .txt{font-size:13px;line-height:1.5;margin:4px 0 6px}
.step .tags{display:flex;flex-wrap:wrap;gap:5px}
.tag{font-size:10.5px;padding:2px 7px;border-radius:12px;font-weight:500}
.empty-steps{border:1px dashed var(--line);border-radius:10px;padding:18px;text-align:center;background:var(--paper)}
.empty-steps p{font-size:12.5px;color:var(--muted);line-height:1.55;margin:0 0 12px}
.mini-list{list-style:none;padding:0;margin:0}
.mini-list li{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px;cursor:pointer}
.mini-list li:hover{color:var(--ci)}
.mini-list li:last-child{border-bottom:none}
.band-dots{display:inline-flex;align-items:center;gap:4px;flex-shrink:0}
.band-dot{width:7px;height:7px;border-radius:50%;background:var(--band,#9D9D9C);flex-shrink:0}
.band-dot.open{background:transparent;border:1.3px solid var(--band,#9D9D9C)}
.placeholder{color:var(--muted);font-size:13.5px;line-height:1.6}
.placeholder b{color:var(--ink);font-weight:600;font-family:var(--font-display)}
.legend{border-top:1px solid var(--line);padding:16px 22px;font-size:11.5px;color:var(--muted)}
.legend .row{display:flex;flex-wrap:wrap;gap:14px;margin-top:8px}
.legend .k{display:flex;align-items:center;gap:6px}
.legend .sw{width:12px;height:12px;border-radius:3px}
.foot{padding:10px 22px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);background:var(--paper)}

/* ---- edit mode ---- */
.edit-badge{display:inline-block;font-family:var(--font-display);font-size:10px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#fff;background:var(--band-med);padding:2px 8px;border-radius:20px;margin-left:8px}
.step-edit{border:1px solid var(--line);border-radius:10px;padding:12px;margin-bottom:12px;background:#fff}
.step-edit .row{display:flex;gap:8px;align-items:center;margin-bottom:8px}
.step-edit select,.step-edit input,.step-edit textarea{font-family:var(--font-body);font-size:12.5px;border:1px solid var(--line);border-radius:7px;padding:7px 9px;color:var(--ink);width:100%;background:#fff}
.step-edit textarea{resize:vertical;min-height:52px;line-height:1.45}
.step-edit select{width:auto;font-family:var(--font-display);font-weight:600;font-size:11px}
.step-edit .lbl{font-family:var(--font-display);font-size:10px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 4px}
.step-edit .actions{display:flex;gap:6px;justify-content:flex-end;margin-top:4px}
.iconbtn{cursor:pointer;border:1px solid var(--line);background:#fff;border-radius:6px;padding:4px 9px;font-family:var(--font-display);font-size:11px;font-weight:600;color:var(--muted)}
.iconbtn:hover{border-color:var(--ci);color:var(--ci)}
.iconbtn.danger:hover{border-color:#C0392B;color:#C0392B}
.addstep{width:100%;cursor:pointer;border:1px dashed var(--line);background:var(--paper);border-radius:10px;padding:11px;font-family:var(--font-display);font-weight:600;font-size:12.5px;color:var(--ci)}
.addstep:hover{border-color:var(--ci)}

/* ---- structural editing on the tree ---- */
.node.sel > .node-rect{stroke:var(--ink);stroke-width:2.5px}
.node-tools{overflow:visible}
.ntools{display:flex;gap:6px;align-items:center}
.ntbtn{font-family:var(--font-display);font-size:11px;font-weight:600;white-space:nowrap;cursor:pointer;border:1px solid var(--line);background:#fff;border-radius:20px;padding:5px 11px;color:var(--ink);box-shadow:0 3px 10px rgba(12,46,55,.12)}
.ntbtn:hover{border-color:var(--ci);color:var(--ci)}
.ntbtn.add{color:var(--ci);border-color:#CDE3EC}
.ntbtn.add:hover{background:var(--ci);color:#fff;border-color:var(--ci)}
.ntbtn.danger{color:#B63B17}
.ntbtn.danger:hover{border-color:#B63B17;color:#B63B17}
.node-rename{overflow:visible}
input.nrename{width:100%;height:100%;box-sizing:border-box;font-family:var(--font-body);font-size:12px;font-weight:500;padding:4px 9px;border:1.6px solid var(--ci);border-radius:9px;background:#fff;color:var(--ink);outline:none;box-shadow:0 3px 10px rgba(12,46,55,.12)}

/* ---- shared-sync status ---- */
.saved.warn{color:var(--band-med)}

/* ---- passcode gate ---- */
#passgate{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;background:rgba(3,95,118,.30);backdrop-filter:blur(3px)}
.passcard{width:min(92vw,380px);background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px 26px;box-shadow:0 24px 60px rgba(0,0,0,.18);text-align:left}
.passcard .passk{font-family:var(--font-display);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600}
.passcard h2{font-family:var(--font-head);font-weight:500;font-size:25px;line-height:1.1;margin:6px 0 8px;color:var(--ink)}
.passcard p{font-size:13px;line-height:1.55;color:var(--muted);margin:0 0 16px}
.passcard input{font-family:var(--font-body);font-size:14px;width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink)}
.passcard input:focus{outline:2px solid var(--ci);outline-offset:1px;border-color:var(--ci)}
.passcard .passmsg{color:var(--semh);font-size:12px;min-height:15px;margin:8px 2px 0}
.passcard .passbtn{width:100%;margin-top:14px;justify-content:center;text-align:center;background:var(--ci);color:#fff;border-color:var(--ci);padding:11px 12px}
.passcard .passbtn:hover{filter:brightness(.96);color:#fff;border-color:var(--ci)}
/* Access modal: relative so the close button anchors; scroll when the register view is tall. */
.passcard{position:relative;max-height:92vh;overflow-y:auto}
.passclose{position:absolute;top:12px;right:12px;width:30px;height:30px;border:none;background:transparent;color:var(--muted);font-size:22px;line-height:1;cursor:pointer;border-radius:8px}
.passclose:hover{color:var(--ink);background:var(--ci-tint)}
.passcard .passlbl{display:block;font-family:var(--font-display);font-size:11.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin:12px 2px 6px}
.passcard .passalt{font-size:12.5px;color:var(--muted);margin:16px 0 0;text-align:center}
.linklike{background:none;border:none;padding:0;font:inherit;color:var(--ci);cursor:pointer;text-decoration:underline}
.linklike:hover{filter:brightness(.9)}

/* ---- shared register form (standalone page + in-app modal) ---- */
.regintro{margin:0 0 20px}
.regfield{margin-bottom:16px}
.regfield label{display:block;font-family:var(--font-display);font-size:11.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.regfield input,.regfield select{font-family:var(--font-body);font-size:14px;width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink)}
.regfield input:focus,.regfield select:focus{outline:2px solid var(--ci);outline-offset:1px;border-color:var(--ci)}
.regfield-hint{font-size:11.5px;line-height:1.5;color:var(--muted);margin:6px 2px 0}
.hp-field{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
#regsuccess{display:none}
#regsuccess[data-shown="1"]{display:block}
#regsuccess h2{font-family:var(--font-head);font-weight:500;font-size:24px;line-height:1.15;margin:0 0 10px;color:var(--ink)}
#regsuccess p{font-size:13.5px;line-height:1.6;color:var(--muted);margin:0 0 14px}
.regpass-label{font-family:var(--font-display);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 4px}
.regpass{font-family:var(--font-head);font-weight:600;font-size:28px;letter-spacing:.02em;color:var(--ci);background:var(--ci-tint);border-radius:10px;padding:14px 16px;margin:0 0 16px;text-align:center}
.regtwo{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.regtwo .btn{flex:1 1 auto;justify-content:center;text-align:center;min-width:150px}

/* ---- gated toolbar buttons (anonymous visitor): greyed with a lock, still clickable to unlock ---- */
.controls .btn.locked{color:var(--muted);border-color:var(--line);opacity:.62}
.controls .btn.locked:hover{opacity:1;border-color:var(--ci);color:var(--ci)}
.controls .btn.locked::before{content:"";display:inline-block;width:10px;height:10px;margin-right:5px;vertical-align:-1px;background-color:currentColor;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Crect x='3' y='6.5' width='8' height='6' rx='1.5' fill='black'/%3E%3Cpath d='M4.5 6.5V4.5a2.5 2.5 0 0 1 5 0v2' fill='none' stroke='black' stroke-width='1.6'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Crect x='3' y='6.5' width='8' height='6' rx='1.5' fill='black'/%3E%3Cpath d='M4.5 6.5V4.5a2.5 2.5 0 0 1 5 0v2' fill='none' stroke='black' stroke-width='1.6'/%3E%3C/svg%3E") center/contain no-repeat}

/* ---- account chip (signed-in state) + popover ---- */
.acct-wrap{display:flex;align-items:center}
.acct{display:inline-flex;align-items:center;gap:7px;font-family:var(--font-display);font-size:12px;font-weight:500;cursor:pointer;padding:7px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink)}
.acct:hover{border-color:var(--ci);color:var(--ci)}
.acct .acct-dot{width:8px;height:8px;border-radius:50%;background:#64A194;flex:0 0 auto}
.acct .acct-name{max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.acct.anon{color:var(--muted)}
.acct.anon .acct-sep{color:var(--line)}
.acct.anon .acct-cta{color:var(--ci);font-weight:600}
#acctpop{position:fixed;z-index:95;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 40px rgba(0,0,0,.16);padding:14px 16px;min-width:214px;font-family:var(--font-body)}
#acctpop .ap-k{font-family:var(--font-display);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:600}
#acctpop .ap-school{font-family:var(--font-head);font-weight:500;font-size:19px;color:var(--ink);margin:2px 0 10px;line-height:1.15}
#acctpop .ap-row{font-size:12.5px;color:var(--muted);margin:0 0 12px}
#acctpop .ap-signout{width:100%;justify-content:center;text-align:center;background:var(--ci);color:#fff;border-color:var(--ci);padding:9px 12px}
#acctpop .ap-signout:hover{filter:brightness(.96);color:#fff;border-color:var(--ci)}

/* ---- match navigator (search + tag results): step through every highlighted location ---- */
#matchbar{position:fixed;left:50%;bottom:18px;transform:translateX(-50%);z-index:80;display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 8px 6px 10px;box-shadow:0 10px 30px rgba(0,0,0,.14);font-family:var(--font-body);font-size:12.5px;color:var(--ink)}
#matchbar .mb-nav{width:26px;height:26px;border:1px solid var(--line);background:#fff;border-radius:50%;cursor:pointer;color:var(--muted);font-size:16px;line-height:1}
#matchbar .mb-nav:hover{border-color:var(--ci);color:var(--ci)}
#matchbar .mb-count{min-width:54px;text-align:center}
#matchbar .mb-count b{color:var(--ci)}
#matchbar .mb-q{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);border-left:1px solid var(--line);padding-left:10px}
#matchbar .mb-clear{border:none;background:none;color:var(--ci);cursor:pointer;font:inherit;text-decoration:underline;padding:0 4px}
#matchbar .mb-clear:hover{filter:brightness(.9)}

/* ---- tag index ---- */
#tagov{position:fixed;inset:0;z-index:90;display:flex;align-items:center;justify-content:center;background:rgba(3,95,118,.30);backdrop-filter:blur(3px);padding:24px}
.tagcard{width:min(94vw,680px);max-height:82vh;overflow-y:auto;background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 26px 28px;box-shadow:0 24px 60px rgba(0,0,0,.18)}
.taghd{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px}
.taghd h2{font-family:var(--font-head);font-weight:500;font-size:26px;line-height:1.1;margin:6px 0 6px;color:var(--ink)}
.taghd p{font-size:13px;line-height:1.5;color:var(--muted);margin:0;max-width:46ch}
.tagx{flex:0 0 auto;width:32px;height:32px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:18px;line-height:1;cursor:pointer}
.tagx:hover{border-color:var(--ci);color:var(--ci)}
.tagwrap{display:flex;flex-wrap:wrap;gap:8px}
.tagchip{display:inline-flex;align-items:center;gap:7px;font-family:var(--font-body);font-size:12.5px;cursor:pointer;border:1px solid var(--line);background:var(--paper);border-radius:20px;padding:6px 8px 6px 12px;color:var(--ink)}
.tagchip:hover{border-color:var(--ci);color:var(--ci)}
.tagn{font-family:var(--font-display);font-weight:600;font-size:11px;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:12px;min-width:20px;text-align:center;padding:1px 6px}
.tagchip:hover .tagn{border-color:var(--ci);color:var(--ci)}
.tagempty{font-size:13px;color:var(--muted)}

/* --- name prompt + activity drawer --- */
#namegate{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;background:rgba(3,95,118,.30);backdrop-filter:blur(3px)}
.namerow{display:flex;gap:10px;margin-top:14px}
.passcard .namerow .passbtn{margin-top:0;flex:1}
.nameskip{flex:0 0 auto;justify-content:center;background:#fff;color:var(--muted);border-color:var(--line)}
.nameskip:hover{border-color:var(--ci);color:var(--ci)}
#logov{position:fixed;inset:0;z-index:90;display:flex;align-items:center;justify-content:center;background:rgba(3,95,118,.30);backdrop-filter:blur(3px);padding:24px}
#srcov{position:fixed;inset:0;z-index:90;display:flex;align-items:center;justify-content:center;background:rgba(3,95,118,.30);backdrop-filter:blur(3px);padding:24px}
.srclist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0;width:100%}
.srcrow{display:flex;flex-direction:column;gap:2px;font-size:13px;line-height:1.5;padding:9px 4px;border-bottom:1px solid var(--line)}
.srcrow:last-child{border-bottom:none}
.srcpub{font-size:11.5px;color:var(--muted)}
.srcnote{font-size:11.5px;line-height:1.6;color:var(--muted);margin:16px 0 0;padding-top:14px;border-top:1px solid var(--line)}
.loglist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0;width:100%}
.logrow{display:flex;align-items:baseline;justify-content:space-between;gap:14px;font-size:13px;line-height:1.5;padding:7px 4px;border-bottom:1px solid var(--line)}
.logrow:last-child{border-bottom:none}
.logtxt{color:var(--ink)}
.logtxt b{font-family:var(--font-display);font-weight:600}
.logtime{flex:0 0 auto;font-size:11.5px;color:var(--muted);white-space:nowrap}
.linklike{background:none;border:none;padding:0;font:inherit;color:var(--ci);cursor:pointer;text-decoration:underline}

/* ---- landing hero (Phase 4-03) ---- */
#lib-hero{padding:56px 22px;background:var(--paper);border-bottom:1px solid var(--line)}
.hero-wrap{max-width:1160px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
#lib-hero .kicker{font-family:var(--font-display);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600}
#lib-hero h1{font-family:var(--font-head);font-weight:500;font-size:46px;line-height:1.08;margin:12px 0 18px;max-width:15ch}
.hero-lede{font-family:var(--font-body);font-size:19px;font-weight:300;line-height:1.7;color:var(--ink);margin:0 0 26px;max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center}
#lib-hero .cta{display:inline-flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:12.5px;font-weight:500;text-decoration:none;background:var(--ci);color:#fff;border:1px solid var(--ci);border-radius:8px;padding:12px 22px}
#lib-hero .cta:hover{filter:brightness(.96)}
.cta-ghost{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-display);font-size:12.5px;font-weight:500;text-decoration:none;color:var(--ci)}
.cta-ghost::after{content:"\2193";font-size:14px}
.cta-ghost:hover{filter:brightness(.85)}
/* aside: an informative preview of the taxonomy, not decoration (fills the width, adds hierarchy) */
.hero-aside{border-left:1px solid var(--line);padding-left:28px}
.hc-k{font-family:var(--font-display);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600;margin:0 0 11px}
.hc-k2{margin-top:22px}
.hc-areas{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.hc-areas li{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--ink);line-height:1.3}
.hc-dot{width:9px;height:9px;border-radius:50%;flex:0 0 auto}
.hc-src{font-size:13px;line-height:1.65;color:var(--muted);margin:0}

/* The mobile panel gets a Close bar; on desktop the panel is a static column and it's hidden. */
.panel-close{display:none}

@media (max-width:860px){
  /* Hero: compact + single column so the tool sits close to the fold. */
  #lib-hero{padding:32px 18px}
  .hero-wrap{grid-template-columns:1fr;gap:24px}
  #lib-hero h1{font-size:32px;margin:10px 0 14px;max-width:none}
  .hero-lede{font-size:16.5px;margin:0 0 20px;max-width:none}
  .hero-aside{border-left:none;border-top:1px solid var(--line);padding-left:0;padding-top:20px}

  /* The app (header + tree + panel) fills one screen so the tree is actually usable. */
  #app-shell{min-height:100dvh}
  .spacer{display:none}
  header{padding:10px 14px;gap:10px 12px}
  .brand{order:1}
  .brand h1{font-size:18px}
  .acct-wrap{order:2;margin-left:auto}
  .search{order:3;flex:1 1 100%}
  .search input{width:100%}
  /* Toolbar stays a single row and scrolls sideways instead of wrapping into a tall block. */
  .controls{order:4;flex:1 1 100%;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .controls::-webkit-scrollbar{display:none}
  .controls .btn,.controls .sep{flex:0 0 auto}
  .saved{display:none}

  /* Panel: a bottom sheet that slides up only when a node is tapped. */
  #panel{position:fixed;left:0;right:0;bottom:0;width:auto;max-height:76%;border-left:none;border-top:1px solid var(--line);border-radius:16px 16px 0 0;box-shadow:0 -10px 30px rgba(0,0,0,.16);z-index:20;transform:translateY(101%);transition:transform .28s ease}
  #panel.open{transform:translateY(0)}
  .panel-close{display:block;position:sticky;top:0;width:100%;border:none;border-bottom:1px solid var(--line);background:#fff;color:var(--muted);font-family:var(--font-display);font-size:12px;font-weight:600;letter-spacing:.02em;padding:13px;cursor:pointer;border-radius:16px 16px 0 0}
  .panel-close::before{content:"";display:block;width:36px;height:4px;border-radius:2px;background:var(--line);margin:0 auto 9px}
  #matchbar{bottom:14px}
}