:root {
  --bg: #eef2f0; --panel: #ffffff; --panel-2: #f3f7f5; --border: #dde6e1;
  --text: #16241d; --muted: #6a7c73; --accent: #0f9d6b; --accent-soft: #e3f6ee;
  --cyan: #0e8aa6; --amber: #b7791f; --danger: #d4493f;
  --radius: 10px; --shadow: 0 4px 18px rgba(20, 50, 38, 0.08); --tab-h: 36px;
}
[data-theme="dark"] {
  --bg: #08110c; --panel: #0e1b14; --panel-2: #11241a; --border: #1d3a2b;
  --text: #e8f5ee; --muted: #82a896; --accent: #34d399; --accent-soft: #11241a;
  --cyan: #22d3ee; --shadow: 0 8px 30px rgba(0,0,0,0.35);
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;
  background: var(--bg); color: var(--text); display: flex; flex-direction: column; height: 100vh; overflow: hidden; }
.icon { width: 17px; height: 17px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 13px; }
.warn { color: var(--amber); font-size: 12.5px; display: inline-flex; gap: 5px; align-items: center; }
.spacer { margin-left: auto; }

/* topbar */
header.topbar { display: flex; align-items: center; gap: 10px; padding: 9px 14px; border-bottom: 1px solid var(--border); background: var(--panel); }
.wordmark { font-weight: 800; letter-spacing: 1px; font-size: 17px; }
.iconbtn { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 30px; border-radius: 8px; border: 1px solid transparent; background: transparent; color: var(--muted); cursor: pointer; transition: .12s; }
.iconbtn:hover { background: var(--panel-2); color: var(--text); border-color: var(--border); }
.iconbtn.active { color: var(--accent); }
.status-pill { display: flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--muted); border: 1px solid var(--border); padding: 5px 11px; border-radius: 999px; background: var(--panel-2); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.dot.ok { background: var(--accent); box-shadow: 0 0 7px var(--accent); } .dot.bad { background: var(--danger); }

/* shell */
.app { flex: 1; display: flex; min-height: 0; }
aside.sidebar { width: 264px; flex: none; border-right: 1px solid var(--border); background: var(--panel); display: flex; flex-direction: column; overflow: hidden; }
aside.sidebar.collapsed { width: 0; border: none; }
.sidebar .head { display: flex; align-items: center; justify-content: space-between; padding: 13px 14px 6px; }
.sidebar .head h2 { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted); margin: 0; }
.sb-controls { padding: 4px 12px 10px; border-bottom: 1px solid var(--border); display: flex; flex-direction: column; gap: 8px; }
.sb-search { display: flex; align-items: center; gap: 6px; border: 1px solid var(--border); border-radius: 8px; padding: 0 8px; background: var(--bg); }
.sb-search .icon { color: var(--muted); } .sb-search input { border: none; background: transparent; padding: 7px 0; }
.list { overflow-y: auto; padding: 8px 10px 14px; flex: 1; }
.group-label { font-size: 10.5px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); margin: 12px 4px 4px; }
.rec-item { padding: 9px 11px; border-radius: 9px; border: 1px solid transparent; cursor: pointer; margin-bottom: 6px; position: relative; }
.rec-item:hover { background: var(--panel-2); }
.rec-actions { position: absolute; top: 5px; right: 5px; display: flex; gap: 1px; opacity: 0; transition: .1s; }
.rec-item:hover .rec-actions { opacity: 1; }
.rec-actions .iconbtn { width: 24px; height: 24px; }
.rec-item .name { padding-right: 44px; }
.rec-item.active { background: var(--accent-soft); border-color: var(--accent); }
.rec-item .name { font-weight: 650; font-size: 13.5px; }
.rec-item .tags { display: flex; gap: 4px; flex-wrap: wrap; margin-top: 5px; }
.tagchip { font-size: 10px; padding: 1px 7px; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--border); color: var(--muted); }
.tagchip.rm { cursor: pointer; } .tagchip.rm:hover { color: var(--danger); border-color: var(--danger); }

/* dock */
.workspace { flex: 1; min-width: 0; min-height: 0; display: flex; }
.split { display: flex; flex: 1; min-width: 0; min-height: 0; }
.split.row { flex-direction: row; } .split.col { flex-direction: column; }
.dock-kid { min-width: 0; min-height: 0; display: flex; }
.resizer { flex: none; background: transparent; position: relative; z-index: 6; }
.split.row > .resizer { width: 10px; cursor: col-resize; } .split.col > .resizer { height: 10px; cursor: row-resize; }
.resizer::after { content: ""; position: absolute; inset: 0; margin: auto; background: var(--border); border-radius: 3px; transition: background .12s; }
.split.row > .resizer::after { width: 2px; height: 100%; } .split.col > .resizer::after { height: 2px; width: 100%; }
/* visible grip handle (always faint, accent on hover/drag) */
.resizer::before { content: ""; position: absolute; inset: 0; margin: auto; background: var(--muted); opacity: .5; border-radius: 3px; }
.split.row > .resizer::before { width: 3px; height: 26px; } .split.col > .resizer::before { height: 3px; width: 26px; }
.resizer:hover::after, .resizer:active::after { background: var(--accent); }
.resizer:hover::before, .resizer:active::before { background: var(--accent); opacity: 1; }

.group { flex: 1; display: flex; flex-direction: column; min-width: 0; min-height: 0; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; margin: 5px; overflow: hidden; position: relative; }
.group.maximized { width: 100%; height: 100%; }
.tabstrip { display: flex; align-items: center; gap: 2px; min-height: var(--tab-h); padding: 3px 5px; border-bottom: 1px solid var(--border); background: var(--panel); flex-wrap: wrap; }
.tab { display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 10px; border-radius: 6px; font-size: 12.5px; color: var(--muted); cursor: grab; white-space: nowrap; border: 1px solid transparent; }
.tab:hover { background: var(--panel-2); color: var(--text); }
.tab.active { background: var(--accent-soft); color: var(--accent); border-color: var(--border); font-weight: 600; }
.tab .x { opacity: .5; } .tab .x:hover { opacity: 1; color: var(--danger); }
.tab.dragging { opacity: .4; }
.panel-content { flex: 1; min-height: 0; position: relative; display: flex; }
.pc-content { flex: 1; overflow: auto; padding: 14px; min-height: 0; }
.dropzone-edge { position: absolute; inset: 0; pointer-events: none; z-index: 20; }
.dropzone-edge .zone { position: absolute; background: rgba(15,157,107,.18); border: 1.5px solid var(--accent); border-radius: 6px; display: none; }

/* inputs/buttons */
h3.sec { margin: 0 0 12px; font-size: 14px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.field { display: block; font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.field span { display: block; margin-bottom: 4px; }
input, textarea, select { background: var(--panel); color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; font-size: 13.5px; width: 100%; outline: none; font-family: inherit; }
input:focus, textarea:focus { border-color: var(--accent); }
button { background: var(--panel); color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 7px 12px; font-size: 13px; cursor: pointer; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
button.ghost { background: transparent; border-color: transparent; color: var(--muted); }
button.danger { color: var(--danger); } button:disabled { opacity: .5; cursor: not-allowed; }

/* diagram + zoom */
.diag-toolbar { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.pagenav { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 12.5px; }
.pagenav input { width: 46px; text-align: center; padding: 4px; }
.zoomctl { display: flex; align-items: center; gap: 4px; margin-left: auto; color: var(--muted); font-size: 12px; }
.diag-scroll { overflow: auto; border: 1px solid var(--border); border-radius: 8px; background: var(--panel); max-height: calc(100% - 50px); }
.diag-scroll img { display: block; }
.dropzone { border: 2px dashed var(--border); border-radius: var(--radius); padding: 26px; text-align: center; color: var(--muted); cursor: pointer; }
.dropzone:hover, .dropzone.drag { border-color: var(--accent); color: var(--text); background: var(--panel-2); }

/* pinout */
.pin-sticky { position: sticky; top: -14px; background: var(--bg); padding-top: 4px; z-index: 3; margin: -14px -14px 8px; padding: 8px 14px; border-bottom: 1px solid var(--border); }
.pin-detail { background: var(--accent-soft); border: 1px solid var(--accent); border-radius: 9px; padding: 10px 12px; margin-bottom: 8px; }
.pin-detail .pd-top { display: flex; align-items: baseline; gap: 9px; }
.pin-detail .pd-pin { font-size: 20px; font-weight: 800; color: var(--cyan); }
.pin-detail .pd-sig { font-size: 14px; font-weight: 700; }
.pin-detail .pd-func { margin: 3px 0 7px; font-size: 13px; }
.pin-detail .pd-grid { display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; font-size: 12px; color: var(--muted); }
.pin-detail .pd-grid b { color: var(--text); font-weight: 600; } .pin-detail .pd-close { margin-left: auto; cursor: pointer; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
td { padding: 5px 8px; border-bottom: 1px solid var(--border); }
tr.pin-row { cursor: pointer; } tr.pin-row:hover { background: var(--panel-2); } tr.pin-row.sel { background: var(--accent-soft); }
.conn-group { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--accent); margin: 12px 0 3px; font-weight: 700; }
.badge { font-size: 9.5px; padding: 1px 5px; border-radius: 4px; font-weight: 700; }
.badge.can { background: rgba(14,138,166,.14); color: var(--cyan); } .badge.pwr { background: rgba(183,121,31,.16); color: var(--amber); } .badge.gnd { background: rgba(106,124,115,.16); color: var(--muted); }

/* markdown + pinref */
.md { line-height: 1.6; font-size: 13.5px; }
.md h1,.md h2,.md h3 { color: var(--accent); margin: 12px 0 6px; font-size: 15px; }
.md ul,.md ol { margin: 6px 0; padding-left: 22px; } .md li { margin: 3px 0; }
.md code { background: var(--panel-2); padding: 1px 5px; border-radius: 5px; color: var(--cyan); font-size: 12.5px; }
.md pre { background: var(--panel-2); padding: 10px 12px; border-radius: 8px; overflow-x: auto; border: 1px solid var(--border); }
.pinref { border-bottom: 1.5px dotted var(--cyan); color: var(--cyan); cursor: help; font-weight: 600; }

/* chat */
.chat { display: flex; flex-direction: column; height: 100%; }
.messages { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; padding: 2px 2px 10px; }
.msg { max-width: 92%; padding: 9px 12px; border-radius: 11px; }
.msg.user { align-self: flex-end; background: var(--accent-soft); border: 1px solid var(--border); }
.msg.assistant { align-self: flex-start; background: var(--panel); border: 1px solid var(--border); }
.chips { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 9px; }
.chip { font-size: 11.5px; padding: 5px 9px; border-radius: 999px; border: 1px solid var(--border); background: var(--panel); cursor: pointer; }
.chip:hover { border-color: var(--cyan); color: var(--cyan); }
.chat-input { display: flex; gap: 8px; } .chat-input textarea { resize: none; height: 42px; }
.toggle { display: flex; align-items: center; gap: 6px; font-size: 11.5px; color: var(--muted); margin-top: 6px; } .toggle input { width: auto; }
.cursor-blink::after { content: "▋"; color: var(--accent); animation: blink 1s steps(2) infinite; } @keyframes blink { 50% { opacity: 0; } }
.thinking { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 7px; }

/* memories + tags + api */
.memory { display: flex; gap: 8px; align-items: flex-start; padding: 7px 0; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.memory .kind { font-size: 9px; text-transform: uppercase; color: var(--cyan); border: 1px solid var(--border); border-radius: 4px; padding: 2px 5px; flex: none; } .memory .kind.auto { color: var(--accent); }
.api-group { margin-bottom: 16px; } .api-group h4 { margin: 0 0 6px; font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--accent); }
.api-ep { border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; margin-bottom: 7px; background: var(--panel); }
.api-ep .m { font-size: 10.5px; font-weight: 800; padding: 1px 6px; border-radius: 5px; background: var(--accent-soft); color: var(--accent); }
.api-ep .p { font-family: ui-monospace, monospace; font-size: 12.5px; } .api-ep .u { color: var(--muted); font-size: 12.5px; margin: 4px 0; }
.api-ep pre { background: var(--panel-2); border: 1px solid var(--border); border-radius: 6px; padding: 7px 9px; font-size: 11.5px; overflow-x: auto; margin: 4px 0 0; }

/* PCB annotation — image fit-to-height on the left, scrollable list on the right */
.pcb-col { display: flex; flex-direction: column; height: 100%; min-height: 0; }
.pcb-layout { display: flex; gap: 12px; flex: 1; min-height: 0; }
.pcb-stage { flex: 1; min-width: 0; display: flex; align-items: flex-start; justify-content: center;
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; overflow: auto; }
/* height is set inline per zoom level (100% = fit-to-height); the box overlay scales with it */
.pcb-wrap { position: relative; line-height: 0; flex: none; }
.pcb-wrap img { display: block; height: 100%; width: auto; border-radius: 6px; }
/* boxes are red for maximum contrast against the green PCB */
.pcb-box { position: absolute; border: 2px solid #ef4444; border-radius: 4px; cursor: pointer; box-sizing: border-box; transition: border-color .1s, box-shadow .1s; }
.pcb-box.dim { border-color: rgba(239,68,68,.55); border-width: 1.5px; }
.pcb-box:hover { border-color: #ff6b6b; }
.pcb-box .lbl { position: absolute; top: -17px; left: -2px; background: #ef4444; color: #fff; font-size: 10px; line-height: 1.5; padding: 0 5px; border-radius: 4px 4px 0 0; white-space: nowrap; font-weight: 700; }
.pcb-box.sel { border-color: #ef4444; box-shadow: 0 0 0 2px #ef4444, 0 0 0 9999px rgba(8,17,12,.28); z-index: 3; }
/* multiple PCB photos — thumbnail switcher */
.pcb-photos { display: flex; gap: 6px; margin-bottom: 8px; overflow-x: auto; padding-bottom: 2px; }
.pcb-thumb { position: relative; flex: none; width: 58px; height: 44px; border: 2px solid var(--border); border-radius: 6px; overflow: hidden; cursor: pointer; }
.pcb-thumb.sel { border-color: var(--accent); }
.pcb-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pcb-thumb .pt-n { position: absolute; left: 0; bottom: 0; background: rgba(0,0,0,.6); color: #fff; font-size: 10px; padding: 0 4px; border-radius: 0 4px 0 0; }

/* drag/resize affordances in edit mode */
.pcb-box.editing { cursor: move; }
.pcb-box .handle { position: absolute; width: 12px; height: 12px; background: #fff; border: 2px solid #ef4444; border-radius: 50%; box-sizing: border-box; z-index: 4; }
.pcb-box .handle.nw { left: -6px; top: -6px; cursor: nwse-resize; }
.pcb-box .handle.ne { right: -6px; top: -6px; cursor: nesw-resize; }
.pcb-box .handle.sw { left: -6px; bottom: -6px; cursor: nesw-resize; }
.pcb-box .handle.se { right: -6px; bottom: -6px; cursor: nwse-resize; }
.pcb-box .pcb-del { position: absolute; top: 2px; right: 2px; width: 18px; height: 18px; display: flex; align-items: center; justify-content: center; background: #ef4444; color: #fff; border-radius: 50%; cursor: pointer; z-index: 5; border: 1.5px solid #fff; }
.pcb-box .pcb-del svg { width: 11px; height: 11px; }
.pcb-box .pcb-del:hover { background: #dc2626; }
.pcb-side { width: 290px; flex: none; display: flex; flex-direction: column; min-height: 0; }
.pcb-list { display: flex; flex-direction: column; gap: 5px; overflow-y: auto; flex: 1; min-height: 0; padding-right: 2px; }
.pcb-item { border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; cursor: pointer; font-size: 13px; flex: none; }
.pcb-item:hover, .pcb-item.sel { border-color: var(--accent); background: var(--accent-soft); }
.pcb-item .pi-top { display: flex; align-items: center; gap: 8px; }
.pcb-item .pi-label { font-weight: 700; } .pcb-item .pi-conf { margin-left: auto; font-size: 10px; color: var(--muted); }
.pcb-item .pi-detail { color: var(--muted); font-size: 12px; margin-top: 4px; }
.pcb-detail { border-top: 1px solid var(--border); padding-top: 10px; margin-top: 8px; flex: none; }

/* tooltip + drop indicator */
#tooltip { position: fixed; z-index: 999; max-width: 280px; background: var(--panel); color: var(--text); border: 1px solid var(--accent); border-radius: 9px; padding: 9px 11px; box-shadow: var(--shadow); font-size: 12.5px; pointer-events: none; display: none; }
#tooltip .tt-pin { font-weight: 800; color: var(--cyan); } #tooltip .tt-sig { font-weight: 700; } #tooltip .tt-row { color: var(--muted); margin-top: 2px; }
.spinner { display: inline-block; width: 13px; height: 13px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite; } @keyframes spin { to { transform: rotate(360deg); } }
.empty { color: var(--muted); text-align: center; padding: 46px 20px; }

/* AI thinking toast */
#aiToast { position: fixed; right: 16px; bottom: 16px; z-index: 1500; width: 340px; max-width: 46vw;
  background: var(--panel); border: 1px solid var(--accent); border-radius: 12px; box-shadow: var(--shadow);
  padding: 11px 13px; font-size: 12.5px; transition: opacity .2s, transform .2s; }
#aiToast.hidden { opacity: 0; transform: translateY(8px); pointer-events: none; }
#aiToast .tt-head { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--accent); }
#aiToast .tt-head .icon { width: 15px; height: 15px; }
#aiToast .tt-stop { margin-left: auto; font-size: 11px; padding: 2px 9px; border-radius: 999px; background: var(--danger); color: #fff; border: none; cursor: pointer; font-weight: 700; }
#aiToast .tt-body { color: var(--muted); margin-top: 5px; max-height: 92px; overflow: hidden; line-height: 1.45;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; }

/* bench / CAN */
.bench-status { display: flex; align-items: center; gap: 8px; font-size: 13px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 9px; margin-bottom: 12px; }
.bench-section { border: 1px solid var(--border); border-radius: 10px; padding: 12px; margin-bottom: 12px; }
.bench-section h4 { margin: 0 0 9px; font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--accent); }
.frame-log { font-family: ui-monospace, monospace; font-size: 11.5px; max-height: 200px; overflow: auto; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 8px; }
.frame-log .fr { white-space: nowrap; padding: 1px 0; }
.frame-log .fr .fid { color: var(--cyan); font-weight: 700; }
.frame-log .fr .fdec { color: var(--accent); }
.rb-msgs { display: flex; flex-direction: column; gap: 2px; max-height: 180px; overflow: auto; font-family: ui-monospace, monospace; font-size: 11.5px; }
.rb-m { display: flex; align-items: center; gap: 7px; padding: 3px 8px; border-radius: 6px; border: 1px solid var(--border); }
.rb-m.on { border-color: var(--accent); background: var(--panel-2); }
.rb-m .fid { color: var(--cyan); font-weight: 700; }
.dtc-list { display: flex; flex-wrap: wrap; gap: 6px; }
.dtc { font-family: ui-monospace, monospace; font-weight: 700; padding: 3px 9px; border-radius: 6px; background: var(--panel-2); border: 1px solid var(--border); }
.dtc.conf { background: rgba(239,68,68,.16); color: #ef4444; border-color: #ef4444; }
.kvp { font-size: 13px; display: grid; grid-template-columns: auto 1fr; gap: 3px 12px; }
.kvp b { color: var(--text); }
.ok-badge { font-size: 11px; padding: 2px 8px; border-radius: 999px; font-weight: 700; }
.ok-badge.yes { background: rgba(15,157,107,.15); color: var(--accent); }
.ok-badge.no { background: rgba(212,73,63,.14); color: var(--danger); }

/* modal */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: flex; align-items: center; justify-content: center; z-index: 2000; }
.modal { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; width: min(580px, 93vw); max-height: 90vh; overflow: auto; box-shadow: var(--shadow); }
.modal .m-head { padding: 16px 18px 4px; font-weight: 700; font-size: 16px; display: flex; align-items: center; gap: 8px; }
.modal .m-sub { padding: 0 18px; color: var(--muted); font-size: 12.5px; }
.modal .m-body { padding: 10px 18px 6px; }
.modal .m-foot { padding: 12px 18px 16px; display: flex; gap: 8px; align-items: center; justify-content: flex-end; border-top: 1px solid var(--border); margin-top: 10px; }
.modal .m-status { margin-right: auto; font-size: 12.5px; color: var(--muted); display: flex; align-items: center; gap: 7px; }
.modal .opts { display: flex; flex-direction: column; gap: 7px; margin: 8px 0 2px; }
.modal .opts label { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text); }
.modal .opts input[type=checkbox] { width: auto; }

/* inline images in chat/triage transcripts + lightbox */
.md-img { display: block; max-width: 240px; max-height: 220px; margin-top: 8px; border-radius: 8px;
  border: 1px solid var(--border); cursor: zoom-in; transition: filter .12s; }
.md-img:hover { filter: brightness(1.05); }
.modal.lightbox { width: min(940px, 96vw); padding: 12px; }
.modal.lightbox .lb-tools { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; margin-bottom: 8px; }
.modal.lightbox .lb-tools button { padding: 5px 9px; font-size: 12.5px; }
.modal.lightbox .lb-tools .tool.active { outline: 2px solid var(--accent); border-color: var(--accent); }
.lb-sw { width: 18px; height: 18px; border-radius: 4px; border: 1px solid var(--border); cursor: pointer; display: inline-block; vertical-align: middle; margin-right: 3px; }
.lb-sw.active { outline: 2px solid var(--text); }
.modal.lightbox .lb-img { display: flex; justify-content: center; background: var(--panel-2);
  border-radius: 10px; overflow: auto; max-height: 74vh; }
.modal.lightbox .lb-canvaswrap { position: relative; display: inline-block; line-height: 0; }
.modal.lightbox #lbImg { display: block; max-width: 100%; max-height: 72vh; width: auto; border-radius: 8px; }
.modal.lightbox #lbCanvas { position: absolute; left: 0; top: 0; cursor: crosshair; touch-action: none; }
.modal.lightbox .lb-cap { display: flex; gap: 8px; margin-top: 10px; }
.modal.lightbox .lb-cap input { flex: 1; }

/* CAB module profile */
.prof-col { display: flex; flex-direction: column; height: 100%; overflow: auto; padding: 12px 14px; }
.prof-summary { font-size: 13px; margin-bottom: 8px; }
.prof-cards { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 6px; }
.prof-legend { display: flex; flex-wrap: wrap; gap: 12px; margin: 6px 0; font-size: 11px; color: var(--muted); }
.prof-legend .lg { display: inline-flex; align-items: center; gap: 5px; }
.prof-legend .lg i { width: 14px; height: 3px; border-radius: 2px; display: inline-block; }
.prof-wire { flex: none; max-height: 46vh; overflow: auto; border: 1px solid var(--border); border-radius: 8px; background: var(--panel-2); margin-bottom: 8px; }
.harness-svg { width: 100%; display: block; }
.harness-svg .hs-conn { fill: var(--panel); stroke: var(--border); stroke-width: 1; }
.harness-svg .hs-title { font-size: 10px; font-weight: 700; fill: var(--muted); letter-spacing: .5px; }
.harness-svg .hs-pin { font-size: 11px; fill: var(--text); }
.harness-svg .hs-hdr { font-size: 10.5px; font-weight: 600; }
.prof-harness { flex: none; max-height: 40vh; overflow: auto; border: 1px solid var(--border); border-radius: 8px; }
.prof-harness table { border-collapse: collapse; width: 100%; }
.prof-harness th, .prof-harness td { border-bottom: 1px solid var(--border); padding: 4px 9px; font-size: 12px; text-align: left; white-space: nowrap; }
.prof-harness th { background: var(--panel-2); position: sticky; top: 0; }
.prof-harness .pin { padding: 1px 6px; border-radius: 4px; font-size: 11px; background: var(--panel-2); }
.prof-harness .pin.can { background: rgba(14,138,166,.18); color: var(--cyan); }
.prof-harness .pin.pwr { background: rgba(239,68,68,.16); color: #ef4444; }
.prof-harness .pin.gnd { background: rgba(120,120,120,.2); }
.prof-yaml { flex: none; min-height: 240px; font-family: ui-monospace, monospace; font-size: 12px; line-height: 1.45; white-space: pre; overflow: auto; }
.tagchip.ok { background: var(--accent); color: #fff; }

/* guided walkthrough */
.guided-col { display: flex; flex-direction: column; height: 100%; overflow: auto; padding: 12px 14px; gap: 4px; }
.g-ladder { display: flex; align-items: center; flex-wrap: wrap; gap: 2px; margin-bottom: 10px; }
.gp { display: flex; align-items: center; gap: 6px; padding: 5px 10px; border-radius: 20px; font-size: 12px; cursor: pointer; border: 1px solid var(--border); color: var(--muted); }
.gp .gp-n { display: inline-flex; align-items: center; justify-content: center; width: 17px; height: 17px; border-radius: 50%; background: var(--panel-2); font-size: 10px; font-weight: 700; }
.gp .gp-n svg { width: 11px; height: 11px; }
.gp.cur { border-color: var(--accent); color: var(--text); background: var(--panel-2); font-weight: 600; }
.gp.cur .gp-n { background: var(--accent); color: #fff; }
.gp.done { color: var(--accent); }
.gp.done .gp-n { background: var(--accent); color: #fff; }
.gp-sep { flex: 1; min-width: 6px; height: 1px; background: var(--border); }
.g-sym { display: flex; gap: 8px; margin-bottom: 10px; }
.g-sym textarea { flex: 1; min-height: 38px; }
.g-step { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 14px; }
.g-step.done { border-color: var(--accent); }
.g-step .g-title { font-size: 15px; font-weight: 700; display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.g-step .g-title svg { width: 16px; height: 16px; color: var(--accent); }
.g-row { font-size: 13px; margin: 4px 0; line-height: 1.45; }
.g-think { font-size: 12px; line-height: 1.5; color: var(--muted); white-space: pre-wrap; max-height: 220px; overflow: auto; font-family: ui-monospace, monospace; background: var(--panel-2); border-radius: 8px; padding: 9px 11px; margin-top: 4px; }
button.ok { background: var(--accent); color: #fff; border-color: var(--accent); }
.g-log .g-le { font-size: 12px; padding: 5px 9px; border-left: 2px solid var(--border); margin: 3px 0; color: var(--muted); white-space: pre-wrap; }

/* house knowledge base browser */
.kb-col { display: flex; flex-direction: column; height: 100%; }
.kb-search { display: flex; align-items: center; gap: 7px; padding: 8px 6px; border-bottom: 1px solid var(--border); }
.kb-search svg { width: 15px; height: 15px; color: var(--muted); flex: none; }
.kb-search input { flex: 1; }
.kb-wrap { flex: 1; display: flex; min-height: 0; }
.kb-list { width: 250px; flex: none; overflow: auto; border-right: 1px solid var(--border); padding: 6px; }
.kb-item { padding: 7px 9px; border-radius: 7px; cursor: pointer; margin-bottom: 3px; }
.kb-item:hover { background: var(--panel-2); }
.kb-item.sel { background: var(--panel-2); outline: 1px solid var(--accent); }
.kb-item .kb-title { font-size: 12.5px; font-weight: 600; }
.kb-item .kb-tags { display: flex; flex-wrap: wrap; gap: 3px; margin-top: 4px; }
.kb-doc { flex: 1; overflow: auto; padding: 4px 18px 24px; min-width: 0; }
.kb-doc table { border-collapse: collapse; margin: 8px 0; }
.kb-doc th, .kb-doc td { border: 1px solid var(--border); padding: 4px 9px; font-size: 12.5px; }

/* project wiki */
.wiki-col { display: flex; flex-direction: column; height: 100%; }
.wiki-doc { flex: 1; overflow: auto; padding: 4px 18px 24px; max-width: 880px; }
.wiki-doc table { border-collapse: collapse; margin: 8px 0; }
.wiki-doc th, .wiki-doc td { border: 1px solid var(--border); padding: 4px 9px; font-size: 12.5px; text-align: left; }
.wiki-doc th { background: var(--panel-2); }
.wiki-doc img.md-img { max-width: 360px; max-height: 280px; }

/* ============================ premium motion layer ============================ */
:root { --ease: cubic-bezier(.4,0,.2,1); --spring: cubic-bezier(.34,1.4,.5,1);
  --glow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent); }

/* buttons: hover lift, press, primary glow + sheen */
button { transition: transform .14s var(--spring), box-shadow .2s var(--ease),
  background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease); position: relative; overflow: hidden; }
button:hover { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(20,50,38,.12); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
button:active { transform: translateY(0) scale(.96); box-shadow: none; }
button:disabled { opacity: .55; transform: none; box-shadow: none; cursor: default; }
button.primary { background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 88%, #fff), var(--accent)); box-shadow: 0 2px 10px color-mix(in srgb, var(--accent) 30%, transparent); }
button.primary:hover { box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 42%, transparent); filter: brightness(1.04); }
button.danger { background: var(--danger); color: #fff; border-color: var(--danger); }
button.ghost { box-shadow: none; }

/* icon buttons + chips */
.iconbtn { transition: transform .14s var(--spring), background .16s var(--ease), color .16s var(--ease); }
.iconbtn:hover { background: var(--panel-2); color: var(--text); transform: translateY(-1px); }
.iconbtn:active { transform: scale(.9); }
.chip, .tagchip { transition: transform .14s var(--spring), background .16s, border-color .16s, box-shadow .16s; }
.chip:hover { transform: translateY(-1px); border-color: var(--accent); background: var(--accent-soft); box-shadow: 0 3px 10px rgba(20,50,38,.1); }
.tagchip:hover { border-color: var(--accent); }

/* tabs: hover + active indicator slide + drag feedback */
.tab { transition: background .15s var(--ease), color .15s var(--ease), transform .12s var(--ease); position: relative; }
.tab:hover { background: var(--panel-2); color: var(--text); }
.tab.active::after { content: ""; position: absolute; left: 9px; right: 9px; bottom: -4px; height: 2px;
  border-radius: 2px; background: var(--accent); animation: tabBar .28s var(--spring); }
@keyframes tabBar { from { transform: scaleX(0); opacity: 0; } to { transform: scaleX(1); opacity: 1; } }
.tab.dragging { opacity: .45; transform: scale(.94) rotate(-1deg); }
.tab .x { transition: transform .12s var(--spring), color .12s; border-radius: 5px; }
.tab .x:hover { transform: scale(1.25); color: var(--danger); }

/* inputs: focus glow */
input, textarea, select { transition: border-color .16s var(--ease), box-shadow .16s var(--ease), background .16s; }
input:focus, textarea:focus, select:focus { border-color: var(--accent); box-shadow: var(--glow); }

/* list / card hover lifts */
.rec-item { transition: transform .15s var(--spring), background .16s, border-color .16s, box-shadow .16s; }
.rec-item:hover { background: var(--panel-2); border-color: color-mix(in srgb, var(--accent) 35%, var(--border)); transform: translateX(2px); box-shadow: 0 3px 12px rgba(20,50,38,.08); }
.rec-item.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 4px 14px color-mix(in srgb, var(--accent) 18%, transparent); }
.pcb-item, .kb-item, .pi, .rb-m, .g-le { transition: transform .14s var(--spring), background .15s, border-color .15s; }
.pcb-item:hover, .kb-item:hover { transform: translateX(2px); border-color: color-mix(in srgb, var(--accent) 30%, var(--border)); }
.gp { transition: transform .14s var(--spring), background .15s, color .15s, border-color .15s; }
.gp:hover { transform: translateY(-1px); border-color: var(--accent); }
.msg { animation: msgIn .26s var(--ease); }
@keyframes msgIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* status dot pulse */
.dot.ok { animation: dotPulse 2.4s var(--ease) infinite; }
@keyframes dotPulse { 0%,100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 55%, transparent); }
  50% { box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 0%, transparent); } }

/* view mount animation */
.pc-content.view-in > * { animation: viewIn .26s var(--ease); }
@keyframes viewIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* modal + backdrop entrance */
.modal-backdrop { animation: fadeIn .16s var(--ease); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal { animation: modalIn .26s var(--spring); }
@keyframes modalIn { from { opacity: 0; transform: translateY(12px) scale(.97); } to { opacity: 1; transform: none; } }
.addmenu { animation: modalIn .18s var(--spring); }
#aiToast:not(.hidden) { animation: toastIn .3s var(--spring); }
@keyframes toastIn { from { opacity: 0; transform: translateY(14px) scale(.96); } to { opacity: 1; transform: none; } }

/* wordmark + brand shimmer on hover */
.wordmark { background: linear-gradient(90deg, var(--text), var(--accent), var(--text)); background-size: 200% auto;
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; transition: background-position .6s var(--ease); }
.wordmark:hover { background-position: 200% center; }

/* click ripple */
.ripple { position: absolute; border-radius: 50%; transform: scale(0); pointer-events: none;
  background: color-mix(in srgb, currentColor 32%, transparent); animation: ripple .55s var(--ease); }
@keyframes ripple { to { transform: scale(2.6); opacity: 0; } }

/* resizers + dropzones get a touch of life */
.resizer:hover::after { background: var(--accent); }
.dropzone { transition: border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--spring); }
.dropzone:hover, .dropzone.drag { border-color: var(--accent); background: var(--accent-soft); transform: scale(1.01); }
.group { transition: box-shadow .2s var(--ease); }
.group:focus-within { box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 30%, transparent); }

@media (prefers-reduced-motion: reduce) {
  *, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ============================ bench instruments ============================ */
.topbar-div { width: 1px; height: 20px; background: var(--border); margin: 0 2px; }
.instr { padding: 14px; display: flex; flex-direction: column; height: 100%; }
.instr-head { font-weight: 700; font-size: 14px; display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.instr-head svg { width: 17px; height: 17px; color: var(--accent); }

/* DMM */
.dmm-modes { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.dmm-modes button { min-width: 48px; font-family: ui-monospace, monospace; font-size: 14px; }
.dmm-screen { background: #07150e; border: 1px solid var(--border); border-radius: 12px; padding: 22px 20px;
  display: flex; align-items: baseline; gap: 12px; box-shadow: inset 0 2px 18px rgba(0,0,0,.5); }
.dmm-val { font-family: "DejaVu Sans Mono", ui-monospace, monospace; font-weight: 700; font-size: clamp(40px, 9vw, 72px);
  color: #34f5a0; text-shadow: 0 0 16px rgba(52,245,160,.55); letter-spacing: 1px; line-height: 1; }
.dmm-val.beep { color: #f5d534; text-shadow: 0 0 16px rgba(245,213,52,.6); animation: beepPulse .5s infinite; }
@keyframes beepPulse { 50% { opacity: .5; } }
.dmm-unit { font-family: ui-monospace, monospace; font-size: 24px; color: #2bd48a; }
.dmm-extra { margin-left: auto; align-self: flex-start; color: #f5d534; font-family: ui-monospace, monospace; font-size: 13px; }

/* Oscilloscope + previews */
.scope-screen { position: relative; flex: 1; min-height: 220px; border-radius: 12px; overflow: hidden;
  background: radial-gradient(120% 120% at 50% 0%, #0a2018, #050d09); border: 1px solid var(--border);
  box-shadow: inset 0 0 40px rgba(0,0,0,.55); }
.scope-screen canvas { width: 100%; height: 100%; display: block; }
.scope-ctl { display: flex; gap: 12px; align-items: center; margin-top: 10px; flex-wrap: wrap; }
.scope-ctl label { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.scope-ctl select { width: auto; }
.sg-prev { min-height: 120px; max-height: 150px; flex: none; margin-bottom: 12px; }

/* Signal generator */
.sg-waves { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.sg-waves button { text-transform: capitalize; }
.sg-row { display: flex; gap: 12px; margin-bottom: 8px; }
.sg-row label { flex: 1; font-size: 11px; color: var(--muted); display: flex; flex-direction: column; gap: 4px; }
.sg-in { display: flex; align-items: center; gap: 6px; }
.sg-in input { flex: 1; }
.sg-in span { font-size: 11px; color: var(--muted); min-width: 24px; }

/* instrument source bar + scope trigger controls */
.scope-ctl.trig { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--border); }
.scope-ctl.trig .trig-lbl { font-size: 11px; font-weight: 700; color: var(--amber); text-transform: uppercase; letter-spacing: .5px; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.seg button { border: none; border-radius: 0; box-shadow: none; padding: 5px 11px; text-transform: capitalize; }
.seg button:hover { transform: none; }
.instr-source { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; font-weight: 400; }
.instr-source select { width: auto; max-width: 210px; font-size: 12px; padding: 5px 8px; }
.src-badge { font-size: 10px; font-weight: 700; padding: 2px 7px; border-radius: 999px; background: var(--panel-2); color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.src-badge.live { background: var(--danger); color: #fff; animation: dotPulse 1.8s infinite; }

/* instrument recording into a project */
.instr-rec { display: flex; align-items: center; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.meas-list { display: flex; flex-direction: column; gap: 3px; margin-top: 6px; max-height: 130px; overflow: auto; }
.meas-row { display: flex; align-items: center; gap: 7px; font-size: 12px; padding: 3px 8px; border: 1px solid var(--border); border-radius: 7px; }
.meas-row svg { width: 13px; height: 13px; color: var(--accent); flex: none; }
.meas-row .meas-v { font-family: ui-monospace, monospace; color: var(--accent); }
.meas-row .iconbtn { margin-left: auto; width: 22px; height: 22px; }

/* product library */
.prod-banner { background: var(--accent-soft); border: 1px solid var(--accent); color: var(--text);
  border-radius: 9px; padding: 8px 12px; margin-bottom: 12px; font-size: 12.5px; display: flex; align-items: center; gap: 7px; }
.prod-banner svg { width: 15px; height: 15px; color: var(--accent); }
.prod-banner a { color: var(--accent); font-weight: 600; }
.prod-col { padding: 14px; height: 100%; overflow: auto; }
.prod-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.prod-card { display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: 12px; padding: 12px; background: var(--panel); transition: transform .14s var(--spring), box-shadow .16s, border-color .16s; }
.prod-card:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: 0 6px 18px rgba(20,50,38,.1); }
.prod-card .pc-title { font-weight: 700; font-size: 14px; }
.prod-card .pc-sub { color: var(--muted); font-size: 11.5px; margin-top: 2px; }
.prod-card .pc-units { font-size: 12px; margin-top: 8px; color: var(--muted); }
.units-badge { display: inline-flex; align-items: center; justify-content: center; min-width: 22px; height: 20px; padding: 0 6px; border-radius: 999px; background: var(--accent); color: #fff; font-weight: 700; font-size: 11px; }

/* NPI cockpit */
.ck-col { padding: 14px; height: 100%; overflow: auto; }
.ck-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.ck-head input { width: auto; }
.ck-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.ck-card { border: 1px solid var(--border); border-radius: 12px; padding: 12px; background: var(--panel); cursor: pointer; transition: transform .14s var(--spring), box-shadow .16s, border-color .16s; }
.ck-card:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: 0 6px 18px rgba(20,50,38,.1); }
.ck-top { display: flex; align-items: center; gap: 8px; }
.ck-title { font-weight: 700; font-size: 13.5px; flex: 1; }
.ck-bar { height: 6px; border-radius: 999px; background: var(--panel-2); overflow: hidden; margin: 9px 0; }
.ck-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--cyan)); transition: width .4s var(--ease); }
.ck-stages { display: flex; flex-wrap: wrap; gap: 4px; }
.ck-st { display: inline-flex; align-items: center; gap: 3px; font-size: 9.5px; padding: 2px 6px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); }
.ck-st i { font-style: normal; }
.ck-st svg { width: 10px; height: 10px; }
.ck-st.on { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); font-weight: 600; }
.ck-next { font-size: 11.5px; color: var(--muted); margin-top: 9px; text-transform: capitalize; }
.ck-next .ck-ready { color: var(--accent); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.ck-next .ck-ready svg { width: 13px; height: 13px; }

/* onboarding wizard overlay */
#wizard { position: fixed; inset: 0; z-index: 3000; background: rgba(8,17,12,.55); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; animation: fadeIn .18s var(--ease); }
.wiz { width: min(640px, 94vw); max-height: 92vh; overflow: auto; background: var(--panel); border: 1px solid var(--border);
  border-radius: 18px; box-shadow: var(--shadow); padding: 22px 24px; animation: modalIn .28s var(--spring); }
.wiz-head { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.wiz-head .wordmark { font-size: 16px; }
.wiz-head .wiz-sub { color: var(--muted); font-size: 12.5px; }
.wiz-stepper { display: flex; align-items: center; gap: 6px; margin-bottom: 18px; flex-wrap: wrap; }
.wiz-pip { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; color: var(--muted); padding: 4px 10px; border-radius: 999px; border: 1px solid var(--border); }
.wiz-pip span { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; border-radius: 50%; background: var(--panel-2); font-weight: 700; font-size: 10px; }
.wiz-pip span svg { width: 11px; height: 11px; }
.wiz-pip.cur { border-color: var(--accent); color: var(--text); font-weight: 600; }
.wiz-pip.cur span { background: var(--accent); color: #fff; }
.wiz-pip.done span { background: var(--accent); color: #fff; }
.wiz-title { font-size: 20px; margin: 0 0 14px; }
.wiz-body { min-height: 140px; }
.wiz-grid .field { margin-bottom: 12px; }
.wiz-drop { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; padding: 24px; border: 1.5px dashed var(--border); border-radius: 12px; }
.wiz-ok { color: var(--accent); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.wiz-ok svg { width: 16px; height: 16px; }
.wiz-thumb { max-width: 220px; max-height: 150px; border-radius: 8px; border: 1px solid var(--border); }
.wiz-symptom { min-height: 120px; }
.wiz-review .wr-row { display: flex; justify-content: space-between; gap: 12px; padding: 9px 2px; border-bottom: 1px solid var(--border); font-size: 13px; }
.wiz-review .wr-row span { color: var(--muted); }
.wiz-assist { display: flex; align-items: center; gap: 9px; margin: 16px 0; padding: 11px 13px; background: var(--accent-soft); border-radius: 10px; font-size: 12.5px; }
.wiz-assist svg { width: 18px; height: 18px; color: var(--accent); flex: none; }
.wiz-nav { display: flex; align-items: center; gap: 8px; }