/* Dragon Boardview — 3D viewer styles
 * Extracted from inline <style> in index.html.
 * Palette: dark-suave (#12141a base) + dragon red (#d32027 accent).
 */

/* ─── Design tokens — radii, shadows, easing, timing ─── */
:root{
  --r-sm:4px; --r-md:6px; --r-lg:10px; --r-xl:14px;
  --sh-sm:0 1px 2px rgba(0,0,0,0.35);
  --sh-md:0 4px 12px rgba(0,0,0,0.45);
  --sh-lg:0 12px 40px rgba(0,0,0,0.6);
  --sh-xl:0 20px 60px rgba(0,0,0,0.7);
  --ease-out:cubic-bezier(0.2, 0.8, 0.25, 1);
  --ease-in-out:cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast:120ms; --t-base:180ms; --t-slow:280ms;
  --accent:#d32027; --accent-weak:rgba(211,32,39,0.12);
  --accent-strong:rgba(211,32,39,0.85);
  --hover-bg:rgba(211,32,39,0.08);
  --border-subtle:rgba(255,255,255,0.14);
  --border-mid:rgba(255,255,255,0.25);
}
*{margin:0;padding:0;box-sizing:border-box}
/* html carries the solid fallback bg; body is transparent so the tech-lines
   canvas (position:fixed, z-index:-1) shows through behind the WebGL canvas. */
html{background:#000}
body{background:transparent;color:#ddd;font-family:-apple-system,'SF Pro Text',system-ui,sans-serif;overflow:hidden}
/* touch-action:none on the WebGL canvas lets OrbitControls receive pinch /
   two-finger drag events on touch devices (mobile, tablet, Meta Quest 2D
   mode). Without this the browser eats multi-touch for page zoom / scroll.
   Desktop mouse/trackpad is unaffected. */
canvas{display:block;touch-action:none}

/* ─── Global polish: focus-visible, button press feedback ─── */
:focus{outline:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--r-sm)}
button{font-family:inherit}
button:active{transform:scale(0.97)}
.tb-dropdown-btn,.modal-close,.bb-panel-close,.tb-menu-item{transition:background var(--t-fast) var(--ease-out),color var(--t-fast) var(--ease-out),transform var(--t-fast) var(--ease-out)}

#ui{position:fixed;top:54px;left:12px;z-index:10;background:rgba(18,20,26,0.94);border:1px solid rgba(255,255,255,0.25);border-radius:10px;padding:14px 16px;width:240px;backdrop-filter:blur(12px);box-shadow:0 4px 24px rgba(0,0,0,0.5)}
#ui.controls-help-hidden{display:none}
.controls-help-head{display:flex;align-items:center;margin-bottom:10px}
#ui h2{font-size:12px;color:#d32027;text-transform:uppercase;letter-spacing:1.2px;margin:0 auto 0 0}
#controls-help-close{display:flex;align-items:center;justify-content:center;width:24px;height:24px;padding:0;border:0;border-radius:4px;background:transparent;color:#7c818a;font-size:12px;line-height:1;cursor:pointer}
#controls-help-close:hover{background:rgba(255,255,255,0.1);color:#e6e7ea}
#search{width:100%;padding:6px 10px;background:rgba(22,24,30,0.9);color:#e6e7ea;border:1px solid rgba(255,255,255,0.2);border-radius:6px;font-size:12px;font-family:inherit;outline:none;margin-bottom:6px}
#search:focus{border-color:rgba(211,32,39,0.5)}
#results{max-height:180px;overflow-y:auto;font-size:11px}
.res{padding:3px 8px;cursor:pointer;border-radius:4px;color:#a8acb5}
.res:hover{background:rgba(255,255,255,0.15);color:#d32027}
.sep{height:1px;background:rgba(255,255,255,0.12);margin:10px 0}
.tip{font-size:10px;color:#4d5159;line-height:1.7}
.tip kbd{background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.15);border-radius:3px;padding:0 3px;font-size:9px;color:#7c818a}
#stats{font-size:10px;color:#4d5159;margin-top:6px}

/* ─── SVG line overlay ─── */
#line-overlay{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:8;display:none}
#line-overlay line{stroke:#d32027;stroke-width:1.5;filter:drop-shadow(0 0 4px rgba(211,32,39,0.4));stroke-dasharray:2000;stroke-dashoffset:2000}
#line-overlay.animate line{animation:line-draw 0.4s ease-out forwards}
@keyframes line-draw{to{stroke-dashoffset:0}}
#line-overlay circle{fill:#d32027;filter:drop-shadow(0 0 6px rgba(211,32,39,0.8))}

/* ─── Right side panel ─── */
#panel{position:fixed;top:42px;right:0;width:320px;height:calc(100% - 42px);z-index:14;
  background:rgba(15,17,23,0.97);border-left:1px solid rgba(255,255,255,0.25);
  backdrop-filter:blur(16px);
  transform:translateX(100%);transition:transform 0.35s cubic-bezier(0.4,0,0.2,1);
  display:flex;flex-direction:column;overflow:hidden}
#panel.open{transform:translateX(0)}

/* ─── Sidebar tabs (Info / PDF / Camera / X) ─── */
.sidebar-tabs{display:flex;align-items:center;padding:4px 6px;background:rgba(10,12,28,0.98);border-bottom:1px solid rgba(255,255,255,0.2);flex-shrink:0;gap:2px}
.sidebar-tab{flex:1;background:transparent;border:none;color:#a8acb5;font-size:11px;font-weight:500;padding:7px 6px;border-radius:5px;cursor:pointer;font-family:inherit;transition:background .12s,color .12s;display:flex;align-items:center;justify-content:center;gap:5px}
.sidebar-tab:hover{background:rgba(255,255,255,0.12);color:#e6e7ea}
.sidebar-tab.active{background:rgba(211,32,39,0.15);color:#d32027}
.sidebar-close{background:transparent;border:none;color:#7c818a;font-size:14px;line-height:1;width:26px;height:26px;border-radius:5px;cursor:pointer;display:flex;align-items:center;justify-content:center;margin-left:2px;transition:background .12s,color .12s}
.sidebar-close:hover{background:rgba(232,70,70,0.18);color:#ff8866}

/* ─── Camera panel ─── */
#camera-panel{position:fixed;top:42px;right:0;width:560px;height:calc(100% - 42px);z-index:14;
  background:rgba(15,17,23,0.97);border-left:1px solid rgba(255,255,255,0.25);
  backdrop-filter:blur(16px);
  transform:translateX(100%);transition:transform 0.35s cubic-bezier(0.4,0,0.2,1);
  display:flex;flex-direction:column;overflow:hidden}
#camera-panel.open{transform:translateX(0)}
#camera-body{padding:10px 12px;flex:1;display:flex;flex-direction:column;gap:10px;overflow:hidden}
.camera-row{display:flex;gap:6px;align-items:center;flex-shrink:0}
.camera-row select{flex:1;padding:6px 8px;background:rgba(22,24,30,0.9);color:#e6e7ea;border:1px solid rgba(255,255,255,0.25);border-radius:6px;font-size:11px;font-family:inherit;outline:none;cursor:pointer}
.camera-row select:focus{border-color:rgba(211,32,39,0.55)}
.camera-row select option{background:#16181d;color:#e6e7ea}
.camera-row label{font-size:10px;color:#7c818a;text-transform:uppercase;letter-spacing:0.6px;flex-shrink:0}
#camera-aspect{max-width:110px}
#camera-video-wrap{flex:1;background:#000;border-radius:8px;overflow:hidden;display:flex;align-items:center;justify-content:center;position:relative;min-height:180px}
/* Auto mode — show the native source aspect, letterboxed if needed. */
#camera-video{width:100%;height:100%;object-fit:contain;background:#000;display:block}
/* Forced aspect — element is sized to the chosen ratio, then object-fit:cover
   crops the source uniformly to fill it. No stretching / deformation; this is
   a true framing change (e.g. a 16:9 webcam cropped to 4:3 loses the left/
   right edges but keeps everything in proper proportions). */
#camera-video-wrap.forced-aspect{background:rgba(0,0,0,0.55)}
#camera-video-wrap.forced-aspect #camera-video{
  width:auto;height:auto;max-width:100%;max-height:100%;
  aspect-ratio:var(--cam-aspect,16/9);
  object-fit:cover;
}
#camera-status{position:absolute;color:#7c818a;font-size:11px;text-align:center;padding:12px;line-height:1.5}
#camera-status.error{color:#ff8866}
#camera-controls{display:flex;gap:6px}
#camera-controls button{flex:1;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.25);color:#a8acb5;padding:6px 8px;border-radius:5px;cursor:pointer;font-size:11px;font-family:inherit;transition:background .12s,color .12s}
#camera-controls button:hover{background:rgba(255,255,255,0.22);color:#d32027}

#panel-header{padding:16px 18px 0;border-bottom:1px solid rgba(255,255,255,0.15);flex-shrink:0;height:90px;overflow:hidden}
#panel .ref{font-size:22px;font-weight:800;color:#f0f1f3;letter-spacing:0.8px;display:block;padding-bottom:4px;border-bottom:1px solid rgba(255,255,255,0.15);margin-bottom:4px}
#panel .model{font-size:11px;color:#7c818a;font-weight:500;display:block;margin-top:2px}
#nav-bar{display:flex;align-items:center;gap:8px;padding:8px 18px;background:rgba(255,255,255,0.08);border-bottom:1px solid rgba(255,255,255,0.15);flex-shrink:0}
#nav-bar .nav-net{font-size:11px;color:#d32027;font-weight:600;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#nav-bar .nav-pos{font-size:10px;color:#7c818a;flex-shrink:0}
#nav-next,#nav-back{background:rgba(211,32,39,0.15);border:1px solid rgba(211,32,39,0.3);color:#d32027;font-size:11px;padding:3px 10px;border-radius:4px;cursor:pointer;font-weight:600;flex-shrink:0}
#nav-next:hover,#nav-back:hover{background:rgba(211,32,39,0.25)}
#panel .block-tag{display:inline-block;background:rgba(211,32,39,0.1);border:1px solid rgba(211,32,39,0.2);color:#d32027;font-size:10px;padding:1px 8px;border-radius:12px;margin-top:6px;min-height:18px}

#panel-body{padding:12px 18px;flex:1;overflow-y:auto}
#panel .func{font-size:12px;color:#e6e7ea;margin-bottom:10px;line-height:1.5;min-height:16px}
#panel .func.typewriter{border-right:2px solid #d32027;animation:blink 0.7s step-end infinite}
@keyframes blink{50%{border-color:transparent}}
#panel .field{font-size:10px;color:#6b7b9e;margin:4px 0;line-height:1.5}
#panel .field b{color:#a8acb5;font-weight:600}

/* Pin list */
#pin-section{margin-top:10px;border-top:1px solid rgba(255,255,255,0.12);padding-top:8px}
#pin-section h3{font-size:11px;color:#7c818a;margin-bottom:6px;font-weight:600;text-transform:uppercase;letter-spacing:0.5px}
#pin-list{max-height:300px;overflow-y:auto;font-size:10px}
.pin-row{display:flex;padding:2px 0;border-bottom:1px solid rgba(255,255,255,0.05)}
.pin-row:hover{background:rgba(255,255,255,0.08)}
.pin-row.active{background:rgba(211,32,39,0.12);border-left:2px solid #d32027}
.pin-num{width:35px;color:#7c818a;flex-shrink:0;text-align:right;padding-right:8px}
.pin-net{color:#a8acb5;word-break:break-all}
.pin-net.gnd{color:#456}
.pin-net.power{color:#e8a44a}
.pin-net.signal{color:#f0f1f3}

#loading{position:fixed;top:0;left:0;width:100%;height:100%;background:#000;display:flex;align-items:center;justify-content:center;z-index:100;flex-direction:column;gap:12px}
#loading .sp{width:36px;height:36px;border:3px solid rgba(211,32,39,0.15);border-top-color:#d32027;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
#loading p{color:#7c818a;font-size:12px}
#pct{color:#d32027;font-size:14px;font-weight:600}
#label-toggles label{display:inline-block;font-size:10px;color:#a8acb5;margin:2px 6px 2px 0;cursor:pointer;white-space:nowrap}
#label-toggles input[type=checkbox]{margin-right:2px;accent-color:#d32027;vertical-align:middle}

/* ─── Split View ─── */
/* ─── PDF Panel ─── */
/* z-index MUST be higher than #panel (14) and #camera-panel (14) so the
   info/camera panels slide off-screen behind the PDF during the 350ms
   transition — otherwise the info panel visibly overlaps the PDF panel's
   right edge while sliding out. */
/* Tab bar sits below #toolbar when visible. */
#tabbar{position:fixed;top:42px;left:0;right:0;z-index:19;display:none}
body.has-tabs #tabbar{display:flex}
body.has-tabs #pdf-panel,
body.has-tabs #panel,
body.has-tabs #chat-panel,
body.has-tabs #camera-panel,
body.has-tabs #sidebar-resizer{top:76px !important;height:calc(100% - 76px) !important}
/* PDF fullscreen: match 2D layout — PDF fills center, sidebar (#panel)
   stays visible on the right with its Info tab. */
body.pdf-fullscreen #panel{right:0 !important;display:flex !important}
body.pdf-fullscreen #pdf-panel{
  display:flex !important;
  left:0 !important;
  right:320px !important;
  width:auto !important;
  border-left:none;
}
body.pdf-fullscreen .sidebar-tab[data-sidebar-tab="pdf"]{display:none !important}
/* Camera panel is 560px by default; in pdf-fullscreen the right gutter is
   only 320px (matches #panel), so clamp it here or it covers the PDF. */
body.pdf-fullscreen #camera-panel{width:320px !important}
body.pdf-fullscreen #camera-panel:not(.open){transform:translateX(100%) !important}
/* The old in-panel sidebar-tabs row (Info/PDF/Camera) is redundant when
   we have in-app tabs; hide it in pdf-fullscreen. */
body.pdf-fullscreen #pdf-panel > .sidebar-tabs{display:none !important}
#pdf-panel{position:fixed;top:42px;right:0;width:45vw;height:calc(100% - 42px);z-index:16;
  background:rgba(15,17,23,0.98);border-left:1px solid rgba(255,255,255,0.25);
  display:none;flex-direction:column;overflow:hidden}
#pdf-panel.open{display:flex}
#chat-panel{position:fixed;top:42px;right:0;width:480px;height:calc(100% - 42px);z-index:15;
  background:rgba(15,17,23,0.98);border-left:1px solid rgba(255,255,255,0.25);
  display:none;flex-direction:column;overflow:hidden}
#chat-panel.open{display:flex}
#pdf-header{display:flex;align-items:center;padding:8px 12px;border-bottom:1px solid rgba(255,255,255,0.15);flex-shrink:0;gap:8px}
#pdf-header span:first-of-type{font-size:11px;color:#d32027;font-weight:600;text-transform:uppercase;letter-spacing:0.8px;margin-right:auto}
#pdf-header button{background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);color:#a8acb5;width:28px;height:28px;border-radius:6px;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;transition:background .15s,color .15s}
#pdf-header button:hover{background:rgba(255,255,255,0.2);color:#d32027}
#pdf-nav{display:flex;align-items:center;padding:6px 12px;border-bottom:1px solid rgba(255,255,255,0.1);flex-shrink:0;gap:6px}
#pdf-nav button{background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);color:#a8acb5;padding:3px 10px;border-radius:4px;cursor:pointer;font-size:11px;transition:background .15s,color .15s}
#pdf-nav button:hover{background:rgba(255,255,255,0.2);color:#d32027}
#pdf-nav input:not(#pdf-page-input){flex:1;padding:4px 8px;background:rgba(22,24,30,0.9);color:#e6e7ea;border:1px solid rgba(255,255,255,0.2);border-radius:4px;font-size:10px;font-family:inherit;outline:none}
#pdf-nav input:focus{border-color:rgba(211,32,39,0.5)}
#pdf-zoom-level{font-size:10px;color:#7c818a;min-width:35px;text-align:center}
.pdf-nav-sep{width:1px;height:18px;background:rgba(255,255,255,0.2);margin:0 2px}
#pdf-results-bar{display:flex;align-items:center;padding:5px 12px;border-bottom:1px solid rgba(255,200,50,0.2);flex-shrink:0;gap:6px;background:rgba(255,200,50,0.05)}
#pdf-results-bar button{background:rgba(255,200,50,0.15);border:1px solid rgba(255,200,50,0.3);color:#e8a44a;padding:2px 8px;border-radius:4px;cursor:pointer;font-size:11px;transition:background .15s}
#pdf-results-bar button:hover{background:rgba(255,200,50,0.25)}
#pdf-result-info{font-size:11px;color:#e8a44a;font-weight:600;min-width:80px;text-align:center}
#pdf-result-ref{font-size:10px;color:#d32027;font-weight:600;margin-left:auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#pdf-container{flex:1;overflow:auto;padding:8px;overscroll-behavior:contain}
#pdf-container canvas{display:block;margin:0 auto}
#pdf-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:10px}
#pdf-loading .sp{width:32px;height:32px;border:3px solid rgba(211,32,39,0.15);border-top-color:#d32027;border-radius:50%;animation:spin .7s linear infinite}
#pdf-loading p{color:#7c818a;font-size:11px}
#pdf-pct{color:#d32027;font-size:13px;font-weight:600}
#sidebar-resizer{position:fixed;top:42px;width:6px;height:calc(100% - 42px);cursor:col-resize;z-index:13;display:none;
  background:rgba(18,20,26,0.98);border-left:1px solid rgba(211,32,39,0.3);border-right:1px solid rgba(211,32,39,0.3)}
#sidebar-resizer:hover{background:rgba(211,32,39,0.08)}
#pdf-search-hl{position:absolute;background:rgba(255,200,50,0.35);border:2px solid rgba(255,200,50,0.8);border-radius:2px;pointer-events:none;display:none}

#split-divider{position:fixed;left:0;right:0;top:50%;height:6px;margin-top:-3px;background:rgba(18,20,26,0.98);border-top:1px solid rgba(211,32,39,0.3);border-bottom:1px solid rgba(211,32,39,0.3);z-index:7;display:none;pointer-events:none}
.split-label{position:fixed;left:12px;z-index:7;font-size:10px;color:rgba(211,32,39,0.5);pointer-events:none;display:none;font-weight:600;text-transform:uppercase;letter-spacing:1px}
#split-label-a{top:48px}
#split-label-b{top:calc(50% + 6px)}

/* ─── Top Toolbar ─── */
#toolbar{position:fixed;top:0;left:0;right:0;z-index:20;height:42px;background:rgba(18,20,26,0.96);border-bottom:1px solid rgba(255,255,255,0.2);backdrop-filter:blur(12px);display:flex;align-items:center;padding:0 12px;gap:6px;font-size:12px;box-shadow:0 2px 12px rgba(0,0,0,0.4)}
#toolbar .tb-group{display:flex;align-items:center;gap:2px;padding:0 4px}
#toolbar .tb-brand{display:inline-flex;align-items:center;gap:8px;font-weight:700;letter-spacing:0.3px;color:#e6e7ea;font-size:13px;padding:0 12px 0 4px;border-right:1px solid rgba(255,255,255,0.12);margin-right:6px;text-decoration:none;height:32px;line-height:1;transition:opacity var(--t-fast) var(--ease-out)}
#toolbar .tb-brand:hover{opacity:0.85}
#toolbar .tb-brand-logo{width:26px;height:26px;display:block;flex-shrink:0;filter:drop-shadow(0 0 6px rgba(211,32,39,0.35))}
#toolbar .tb-brand-name{white-space:nowrap}
@media (max-width:760px){#toolbar .tb-brand-name{display:none}}
#toolbar .tb-sep{width:1px;height:22px;background:rgba(255,255,255,0.2);margin:0 6px}
#toolbar .tb-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:none;background:transparent;color:#a8acb5;border-radius:6px;cursor:pointer;font-size:15px;transition:background .15s,color .15s}
#toolbar .tb-btn:hover{background:rgba(255,255,255,0.15);color:#d32027}
#toolbar .tb-btn:active{background:rgba(255,255,255,0.25)}
#toolbar .tb-btn svg{width:18px;height:18px;fill:currentColor}
#toolbar .tb-btn.active{color:#d32027;background:rgba(255,255,255,0.12)}
#toolbar .tb-btn-txt{width:auto;padding:0 12px;font-size:11px;font-weight:500;font-family:inherit;letter-spacing:0.2px}
/* Embedded mode is used by /viewer2d/ 3D tabs. The outer 2D shell owns
   navigation, tabs, PDFs, and user chrome; the iframe renders only 3D content. */
body.embedded #toolbar,
body.embedded #tabbar,
body.embedded #ui,
body.embedded #upload-progress-overlay {
  display: none !important;
}
body.embedded #panel,
body.embedded #pdf-panel,
body.embedded #chat-panel,
body.embedded #camera-panel {
  top: 0 !important;
  height: 100% !important;
}
body.embedded #sidebar-resizer {
  top: 0 !important;
  height: 100% !important;
}
body.embedded #split-label-a { top: 8px; }
body.embedded #net-path-overlay { top: 12px; }
/* Toolbar <select> — styled to visually match tb-btn-txt so it doesn't stand out. */
.tb-select{height:28px;padding:0 22px 0 10px;background:transparent;color:#a8acb5;border:1px solid transparent;border-radius:var(--r-md);font-size:11px;font-family:inherit;letter-spacing:0.2px;cursor:pointer;appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,currentColor 50%),linear-gradient(135deg,currentColor 50%,transparent 50%);background-position:calc(100% - 11px) 12px,calc(100% - 7px) 12px;background-size:4px 4px,4px 4px;background-repeat:no-repeat}
.tb-select:hover{background-color:var(--hover-bg);color:var(--accent);border-color:var(--border-subtle)}
.tb-select:focus{outline:none;border-color:rgba(211,32,39,0.3)}
.tb-select option{background:#16181d;color:#e6e7ea}
.tb-select.quality-medium{color:#e0c97a}
.tb-select.quality-low{color:#e08a7a}

/* Dropdown menus */
.tb-dropdown{position:relative}
.tb-dropdown-btn{display:flex;align-items:center;gap:4px;padding:5px 11px;border:1px solid transparent;background:transparent;color:#a8acb5;border-radius:var(--r-md);cursor:pointer;font-size:12px;font-family:inherit;white-space:nowrap;transition:background var(--t-fast) var(--ease-out),color var(--t-fast) var(--ease-out),border-color var(--t-fast) var(--ease-out),transform var(--t-fast) var(--ease-out)}
.tb-dropdown-btn:hover{background:var(--hover-bg);color:var(--accent);border-color:var(--border-subtle)}
.tb-dropdown-btn.active{background:var(--accent-weak);color:var(--accent);border-color:rgba(211,32,39,0.3)}
.tb-dropdown-btn::after{content:'';border-left:3.5px solid transparent;border-right:3.5px solid transparent;border-top:4px solid currentColor;margin-left:2px}
.tb-menu{display:none;position:absolute;top:100%;left:0;margin-top:4px;background:rgba(20,22,28,0.98);border:1px solid rgba(255,255,255,0.25);border-radius:8px;min-width:200px;padding:4px 0;box-shadow:0 8px 32px rgba(0,0,0,0.6);z-index:30}
/* Open Board dropdown + username badge styles live in /shared/openboard-dropdown.css */
.bbt-empty{padding:12px 14px;color:#7c818a;font-size:11px;text-align:center}
.tb-menu.open{display:block}
.tb-menu-item{display:flex;align-items:center;padding:6px 14px;cursor:pointer;color:#e6e7ea;font-size:11.5px;gap:8px;transition:background .1s}
.tb-menu-item:hover{background:rgba(255,255,255,0.12)}
.tb-menu-item kbd{margin-left:auto;font-size:9px;color:#7c818a;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.15);border-radius:3px;padding:0 4px}
.tb-menu-divider{height:1px;background:rgba(255,255,255,0.15);margin:4px 0}
.tb-menu-label{padding:4px 14px;font-size:9px;color:#7c818a;text-transform:uppercase;letter-spacing:0.8px;pointer-events:none}
.tb-menu-item input[type=checkbox]{accent-color:#d32027;margin:0}

/* PCB color swatches */
#tb-pcb-colors{display:flex;align-items:center;gap:6px;padding:6px 14px}
#tb-pcb-colors .pcb-swatch{width:18px;height:18px;border-radius:4px;cursor:pointer;border:2px solid transparent;transition:border-color .15s,transform .1s;flex-shrink:0}
#tb-pcb-colors .pcb-swatch:hover{transform:scale(1.15)}
#tb-pcb-colors .pcb-swatch.active{border-color:#d32027}

/* Search inputs in toolbar */
.tb-search{position:relative}
.tb-search input{padding:5px 10px 5px 28px;background:rgba(22,24,30,0.9);color:#e6e7ea;border:1px solid rgba(255,255,255,0.2);border-radius:6px;font-size:11px;font-family:inherit;outline:none;width:280px;transition:border-color .15s,width .2s}
.tb-search input:focus{border-color:rgba(211,32,39,0.5);width:360px}
.tb-search-results .res.res-pin{color:#b89b7a}
.tb-search-results .res.res-pin:hover{color:#e8a44a}
.tb-search-results .res.active{background:rgba(255,255,255,0.22);color:#d32027}
.tb-search-results .res-kind{display:inline-block;font-size:9px;color:#7c818a;text-transform:uppercase;letter-spacing:0.6px;margin-right:8px;min-width:28px}
.tb-search input::placeholder{color:#4d5159}
.tb-search-icon{position:absolute;left:8px;top:50%;transform:translateY(-50%);color:#4d5159;font-size:12px;pointer-events:none}
.tb-search-results{display:none;position:absolute;top:100%;left:0;margin-top:4px;background:rgba(20,22,28,0.98);border:1px solid rgba(255,255,255,0.25);border-radius:8px;min-width:280px;max-height:300px;overflow-y:auto;padding:4px 0;box-shadow:0 8px 32px rgba(0,0,0,0.6);z-index:30}
.tb-search-results.open{display:block}
.tb-search-results .res{padding:5px 12px;cursor:pointer;color:#a8acb5;font-size:11px;transition:background .1s}
.tb-search-results .res:hover{background:rgba(255,255,255,0.12);color:#d32027}
.tb-search-results .res .net-count{float:right;color:#7c818a;font-size:10px}
.tb-search-results .res .net-type{display:inline-block;width:6px;height:6px;border-radius:50%;margin-right:6px}
.tb-search-results .res-header{padding:4px 12px;font-size:9px;color:#7c818a;text-transform:uppercase;letter-spacing:0.8px;pointer-events:none}

/* ─── Open Board: Modal overlay (Select board, Upload progress) ─── */
.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(10,12,16,0.78);backdrop-filter:blur(8px);z-index:50;display:none;align-items:center;justify-content:center}
.modal-overlay.open{display:flex}
.modal-card{background:rgba(20,22,28,0.98);border:1px solid rgba(255,255,255,0.25);border-radius:12px;box-shadow:0 16px 60px rgba(0,0,0,0.7);width:min(820px,90vw);max-height:80vh;display:flex;flex-direction:column;overflow:hidden}
.modal-card.progress-card{width:auto;min-width:420px;max-width:520px}
.modal-header{display:flex;align-items:center;padding:14px 18px;border-bottom:1px solid rgba(255,255,255,0.18);flex-shrink:0}
.modal-header h2{font-size:13px;color:#d32027;font-weight:700;text-transform:uppercase;letter-spacing:1.2px;margin:0;flex:1}
.modal-close{background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);color:#a8acb5;width:28px;height:28px;border-radius:6px;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;transition:background .15s,color .15s}
.modal-close:hover{background:rgba(255,255,255,0.25);color:#d32027}
.modal-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;padding:16px;overflow-y:auto}
.modal-loading,.modal-empty,.modal-error{grid-column:1/-1;text-align:center;color:#7c818a;font-size:12px;padding:30px}
.modal-error{color:#e8704a}

/* Board card inside the Select modal */
.board-card{position:relative;padding:14px 14px 12px;background:rgba(22,24,30,0.7);border:1px solid rgba(255,255,255,0.2);border-radius:8px;cursor:pointer;transition:background .15s,border-color .15s,transform .15s}
.board-card:hover{background:rgba(255,255,255,0.18);border-color:rgba(211,32,39,0.5);transform:translateY(-1px)}
.board-card.current{border-color:rgba(211,32,39,0.6);background:rgba(211,32,39,0.08)}
.board-card .bc-name{font-size:12px;color:#f0f1f3;font-weight:600;line-height:1.3;margin-bottom:4px;padding-right:24px;word-break:break-word}
.board-card .bc-id{font-size:10px;color:#7c818a;font-family:'SF Mono',monospace}
.board-card .bc-delete{position:absolute;top:8px;right:8px;background:rgba(0,0,0,0.3);border:1px solid rgba(255,255,255,0.2);color:#7c818a;width:20px;height:20px;border-radius:4px;cursor:pointer;font-size:14px;line-height:1;display:flex;align-items:center;justify-content:center;transition:background .15s,color .15s,opacity .15s;opacity:0}
.board-card:hover .bc-delete{opacity:1}
.board-card .bc-delete:hover{background:rgba(232,70,70,0.25);color:#ff8866;border-color:rgba(232,70,70,0.4)}

/* ─── Upload progress card ─── */
.progress-card{min-width:420px;max-width:520px;padding:36px 32px;align-items:center;text-align:center}
.progress-spinner{width:48px;height:48px;border:4px solid rgba(211,32,39,0.15);border-top-color:#d32027;border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 22px}
.progress-message{font-size:14px;color:#f0f1f3;font-weight:500;line-height:1.5;margin-bottom:18px;min-height:42px}
.progress-bar{width:100%;height:6px;background:rgba(255,255,255,0.15);border-radius:4px;overflow:hidden;margin-bottom:8px}
.progress-bar-fill{height:100%;width:5%;background:linear-gradient(90deg,#d32027,#ff5563);border-radius:4px;transition:width .4s cubic-bezier(0.4,0,0.2,1);position:relative}
.progress-bar-fill::after{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.4),transparent);background-size:200% 100%;animation:shimmer 1.6s linear infinite}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
.progress-error{display:none;margin-top:14px;padding:12px 14px;background:rgba(232,70,70,0.1);border:1px solid rgba(232,70,70,0.3);border-radius:6px;color:#ff8866;font-size:12px;line-height:1.5}
.progress-close-btn{display:none;margin-top:18px;padding:8px 22px;background:rgba(255,255,255,0.18);border:1px solid rgba(255,255,255,0.35);color:#d32027;border-radius:6px;cursor:pointer;font-size:12px;font-family:inherit;font-weight:600;transition:background .15s}
.progress-close-btn:hover{background:rgba(255,255,255,0.3)}

/* ─── Net path overlay ─── */
#net-path-overlay{position:fixed;top:54px;left:50%;transform:translateX(-50%);background:rgba(10,12,16,0.92);backdrop-filter:blur(6px);border:1px solid rgba(211,32,39,0.3);border-radius:8px;padding:8px 16px;font-family:monospace;font-size:12px;color:#e8e8e8;z-index:30;display:none;max-width:80vw;white-space:nowrap;overflow-x:auto}
#net-path-overlay.open{display:flex;align-items:center;gap:8px}
#net-path-name{font-weight:700;color:#ffdd00;font-size:13px}
#net-path-layers{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.net-path-layer{padding:2px 8px;border-radius:4px;font-size:10px;font-weight:600;border:1px solid rgba(255,255,255,0.2)}
.net-path-arrow{color:#7c818a;font-size:14px}
#net-path-close{background:none;border:none;color:#7c818a;cursor:pointer;font-size:16px;padding:0 0 0 8px;line-height:1}
#net-path-close:hover{color:#ff6655}

/* ─── Debug panel ─── */
#debug-panel{position:fixed;bottom:12px;left:12px;background:rgba(10,12,16,0.88);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,0.15);border-radius:6px;padding:8px 12px;font-family:monospace;font-size:11px;color:#d32027;z-index:20;line-height:1.8;display:none}
#dbg-copy{margin-top:5px;padding:2px 10px;background:rgba(255,255,255,0.18);border:1px solid rgba(255,255,255,0.25);border-radius:4px;color:#d32027;font-family:monospace;font-size:10px;cursor:pointer;width:100%}
#dbg-copy:active{background:rgba(255,255,255,0.4)}

/* ─── Like/dislike floating card ─── */
.floating-card{position:fixed;bottom:24px;right:24px;background:rgba(20,22,28,0.98);border:1px solid rgba(211,32,39,0.4);border-radius:12px;box-shadow:0 12px 48px rgba(0,0,0,0.6);padding:18px 22px;z-index:60;display:none;animation:slide-in .35s cubic-bezier(0.4,0,0.2,1);min-width:280px}
.floating-card.open{display:block}
@keyframes slide-in{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}
.fc-title{font-size:13px;color:#f0f1f3;font-weight:600;margin-bottom:4px}
.fc-board{font-size:10px;color:#7c818a;font-family:'SF Mono',monospace;margin-bottom:14px}
.fc-buttons{display:flex;gap:10px}
.fc-btn{flex:1;padding:9px 14px;border-radius:6px;cursor:pointer;font-size:12px;font-family:inherit;font-weight:600;border:1px solid;transition:background .15s,transform .1s}
.fc-btn:active{transform:scale(0.97)}
.fc-btn-like{background:rgba(80,200,120,0.15);border-color:rgba(80,200,120,0.4);color:#7feaa6}
.fc-btn-like:hover{background:rgba(80,200,120,0.28)}
.fc-btn-dislike{background:rgba(232,70,70,0.12);border-color:rgba(232,70,70,0.35);color:#ff8866}
.fc-btn-dislike:hover{background:rgba(232,70,70,0.22)}

/* ─── Settings modal (mirrors viewer2d layout; dark-cyan theme) ─── */
#settings-modal{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:340px;max-height:80vh;background:rgba(20,22,28,0.98);border:1px solid rgba(255,255,255,0.25);border-radius:10px;box-shadow:0 16px 60px rgba(0,0,0,0.7);z-index:60;display:flex;flex-direction:column;overflow:hidden;user-select:none;font-family:inherit}
#settings-modal.hidden{display:none}
#settings-modal.dragging{transition:none;cursor:grabbing}
#settings-titlebar{display:flex;align-items:center;padding:10px 8px 10px 14px;background:rgba(22,24,30,0.9);border-bottom:1px solid rgba(255,255,255,0.2);cursor:grab;flex-shrink:0}
#settings-titlebar:active{cursor:grabbing}
#settings-title{font-size:12px;font-weight:700;color:#d32027;text-transform:uppercase;letter-spacing:1.2px;margin-right:auto}
#settings-close{background:transparent;border:none;color:#a8acb5;font-size:20px;line-height:1;padding:0 8px;cursor:pointer}
#settings-close:hover{color:#d32027}
#settings-tabs{display:flex;padding:0 8px;background:rgba(20,22,28,0.98);border-bottom:1px solid rgba(255,255,255,0.2);flex-shrink:0}
.settings-tab{background:transparent;border:none;border-bottom:2px solid transparent;color:#a8acb5;padding:9px 14px;font-size:12px;font-weight:500;cursor:pointer;margin-bottom:-1px;transition:color .15s,border-color .15s;font-family:inherit}
.settings-tab:hover{color:#e6e7ea}
.settings-tab.active{color:#d32027;border-bottom-color:#d32027}
.settings-tab[hidden]{display:none}
.settings-panel-body{flex:1;overflow-y:auto;user-select:text}
.settings-tab-panel{display:none}
.settings-tab-panel.active{display:block}
.settings-panel-head{display:flex;align-items:center;padding:10px 14px 6px 14px;font-size:10px;text-transform:uppercase;letter-spacing:0.8px;color:#7c818a}
.settings-panel-head>span{margin-right:auto;font-weight:600}
.settings-panel-head button{padding:3px 10px;font-size:10px;background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.3);color:#d32027;border-radius:4px;cursor:pointer;font-family:inherit}
.settings-panel-head button:hover{background:rgba(255,255,255,0.25)}
.settings-body{padding:6px 14px 12px 14px;display:flex;flex-direction:column;gap:4px}
.settings-body label{display:flex;align-items:center;font-size:12px;color:#e6e7ea;gap:10px;padding:4px 0;cursor:pointer}
.settings-body label>span{flex:1}
.settings-body label.with-select>select{background:rgba(20,22,28,0.95);color:#e6e7ea;border:1px solid rgba(255,255,255,0.3);border-radius:4px;padding:2px 6px;font-size:11px;font-family:inherit;cursor:pointer}
.settings-body input[type=color]{width:36px;height:24px;padding:0;border:1px solid rgba(255,255,255,0.3);border-radius:4px;background:transparent;cursor:pointer}
.settings-body input[type=color]::-webkit-color-swatch-wrapper{padding:0}
.settings-body input[type=color]::-webkit-color-swatch{border:none;border-radius:3px}
.settings-body input[type=checkbox]{accent-color:#d32027;margin:0}
.settings-body kbd{margin-left:auto;font-size:9px;color:#7c818a;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.15);border-radius:3px;padding:0 4px}
#settings-pcb-swatches{display:flex;align-items:center;gap:8px;padding:4px 0 10px 0;flex-wrap:wrap}
#settings-pcb-swatches .pcb-swatch{width:24px;height:24px;border-radius:5px;cursor:pointer;border:2px solid transparent;transition:border-color .15s,transform .1s;flex-shrink:0}
#settings-pcb-swatches .pcb-swatch:hover{transform:scale(1.12)}
#settings-pcb-swatches .pcb-swatch.active{border-color:#d32027}
#settings-label-toggles,#settings-components-toggles{display:flex;flex-wrap:wrap;gap:2px 10px;margin-top:4px;padding-top:6px;padding-left:18px;border-top:1px dashed rgba(255,255,255,0.12)}
#settings-label-toggles label,#settings-components-toggles label{font-size:11px;color:#a8acb5;padding:2px 0;flex:0 1 auto;min-width:90px}
.toggle-all-row{display:flex;align-items:center;gap:6px;font-size:11px;color:#c8c9cc;padding:4px 0;font-weight:600}
#settings-layers-list{max-height:260px;overflow-y:auto;margin-top:4px;padding-top:8px;border-top:1px solid rgba(255,255,255,0.12)}
#settings-layers-list .layer-row{display:flex;align-items:center;gap:8px;padding:3px 0;font-size:11px;color:#a8acb5;cursor:pointer}
#settings-layers-list .layer-row input{accent-color:#d32027}
#settings-layers-list .layer-swatch{width:12px;height:12px;border-radius:2px;flex-shrink:0}
#settings-layers-list .layer-section{font-size:9px;color:#7c818a;text-transform:uppercase;letter-spacing:0.8px;padding:6px 0 2px 0}