:root {
  --labs-bg: #080f0a;
  --labs-deep: #0b1410;
  --labs-card: #0f1a12;
  --labs-card-2: #101e15;
  --labs-border: #1a3022;
  --labs-accent: #00c96a;
  --labs-accent-2: #00854a;
  --labs-text: #e6f0e9;
  --labs-muted: #779486;
  --labs-soft: rgba(255,255,255,.055);
  --labs-soft-2: rgba(255,255,255,.03);
  --labs-danger: #ff5f73;
  --labs-gold: #f4c542;
  --labs-shadow: 0 24px 60px rgba(0,0,0,.26);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--labs-text);
  background:
    radial-gradient(circle at 78% 8%, rgba(0,201,106,.12), transparent 32rem),
    radial-gradient(circle at 8% 44%, rgba(0,133,74,.10), transparent 30rem),
    var(--labs-bg);
  font-family: 'DM Sans', sans-serif;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='.025'/%3E%3C/svg%3E");
  opacity: .45;
}

.labs-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: rgba(8,15,10,.9);
  border-bottom: 1px solid var(--labs-border);
  backdrop-filter: blur(18px);
}
.labs-logo {
  color: var(--labs-text);
  text-decoration: none;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem;
  letter-spacing: 2px;
}
.labs-logo span { color: var(--labs-accent); }
.labs-nav-right { display:flex; gap:10px; align-items:center; }
.labs-nav-link, .labs-nav-btn {
  border: 1px solid var(--labs-border);
  background: transparent;
  color: var(--labs-muted);
  text-decoration: none;
  min-height: 40px;
  padding: 9px 14px;
  border-radius: 999px;
  font: 600 .78rem/1 'DM Sans', sans-serif;
  cursor: pointer;
  transition: .18s ease;
}
.labs-nav-link:hover, .labs-nav-btn:hover { color: var(--labs-text); border-color: rgba(0,201,106,.4); }

.labs-wrap { width: min(1220px, calc(100% - 32px)); margin: 0 auto; }
.labs-hero { padding: 72px 0 36px; }
.labs-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--labs-accent);
  text-transform: uppercase;
  letter-spacing: 1.8px;
  font-size: .72rem;
  font-weight: 800;
}
.labs-eyebrow::before { content:''; width:7px; height:7px; border-radius:50%; background:var(--labs-accent); box-shadow:0 0 18px rgba(0,201,106,.7); }
.labs-hero h1 {
  max-width: 780px;
  margin: 14px 0 14px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(4rem, 10vw, 8.4rem);
  line-height: .88;
  letter-spacing: 1px;
}
.labs-hero h1 em { font-family:'DM Serif Display', serif; font-style:italic; color:var(--labs-accent); }
.labs-hero p { max-width: 760px; color: var(--labs-muted); line-height: 1.75; font-size: 1rem; }
.labs-hero-note { margin-top: 18px; color: rgba(230,240,233,.45); font-size: .78rem; }

.lab-library { padding: 22px 0 48px; }
.lab-library-head { display:flex; align-items:end; justify-content:space-between; gap:20px; margin-bottom:16px; }
.lab-library-head h2 { margin:0; font-family:'Bebas Neue', sans-serif; font-size:2.2rem; letter-spacing:1px; }
.lab-library-head p { margin:0; color:var(--labs-muted); font-size:.86rem; }
.lab-filter { display:flex; gap:8px; flex-wrap:wrap; margin-top:12px; }
.lab-filter-btn {
  appearance:none;
  border:1px solid var(--labs-border);
  background:var(--labs-soft-2);
  color:var(--labs-muted);
  padding:8px 12px;
  border-radius:999px;
  font:600 .73rem/1 'DM Sans', sans-serif;
  cursor:pointer;
}
.lab-filter-btn.active, .lab-filter-btn:hover { color:var(--labs-text); border-color:rgba(0,201,106,.45); background:rgba(0,201,106,.08); }
.lab-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:14px; }
.lab-card {
  text-align:left;
  border:1px solid var(--labs-border);
  background:linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.018));
  border-radius:18px;
  padding:20px;
  color:inherit;
  cursor:pointer;
  min-height:230px;
  position:relative;
  overflow:hidden;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.lab-card::after { content:''; position:absolute; width:180px; height:180px; right:-50px; top:-65px; border-radius:50%; background:radial-gradient(circle, rgba(0,201,106,.10), transparent 70%); pointer-events:none; }
.lab-card:hover { transform:translateY(-3px); border-color:rgba(0,201,106,.38); background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02)); }
.lab-card.active { border-color:rgba(0,201,106,.62); box-shadow:0 0 0 1px rgba(0,201,106,.12), var(--labs-shadow); }
.lab-card-meta { display:flex; justify-content:space-between; gap:12px; align-items:center; }
.lab-chip { font-size:.66rem; font-weight:800; text-transform:uppercase; letter-spacing:1.4px; color:var(--labs-accent); }
.lab-open-chip { font-size:.68rem; color:var(--labs-muted); }
.lab-card h3 { margin:28px 0 8px; font-size:1.22rem; }
.lab-card p { margin:0; color:var(--labs-muted); font-size:.83rem; line-height:1.65; max-width:330px; }
.lab-card-foot { display:flex; gap:8px; flex-wrap:wrap; margin-top:18px; }
.lab-tag { padding:5px 8px; border:1px solid var(--labs-border); border-radius:999px; color:rgba(230,240,233,.58); font-size:.64rem; }

.lab-workspace-wrap { padding-bottom:86px; }
.lab-workspace {
  display:none;
  border:1px solid var(--labs-border);
  border-radius:22px;
  overflow:hidden;
  background:var(--labs-card);
  box-shadow:var(--labs-shadow);
}
.lab-workspace.open { display:block; }
.lab-workspace:fullscreen {
  width:100vw;
  max-width:none;
  height:100vh;
  max-height:none;
  margin:0;
  border-radius:0;
  overflow-y:auto;
  overflow-x:hidden;
  overscroll-behavior:contain;
  -webkit-overflow-scrolling:touch;
}
.lab-workspace:fullscreen .lab-workspace-head {
  position:sticky;
  top:0;
  z-index:5;
}
.lab-workspace-head { display:flex; align-items:center; justify-content:space-between; gap:14px; padding:16px 18px; border-bottom:1px solid var(--labs-border); background:rgba(255,255,255,.02); }
.lab-workspace-kicker { color:var(--labs-muted); font-size:.68rem; text-transform:uppercase; letter-spacing:1.5px; font-weight:800; }
.lab-workspace-title { margin-top:3px; font-family:'Bebas Neue', sans-serif; font-size:1.65rem; letter-spacing:1px; }
.lab-head-actions { display:flex; gap:8px; align-items:center; }
.lab-icon-btn { border:1px solid var(--labs-border); background:transparent; color:var(--labs-text); width:42px; height:42px; border-radius:10px; cursor:pointer; font-size:.9rem; }
.lab-icon-btn:hover { border-color:rgba(0,201,106,.4); background:rgba(0,201,106,.07); }

.lab-mount { min-height:640px; }
.lab-shell { display:grid; grid-template-columns:280px minmax(0,1fr); min-height:640px; }
.lab-controls { border-right:1px solid var(--labs-border); padding:18px; background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.015)); }
.lab-controls h4 { margin:0 0 15px; font-size:.72rem; letter-spacing:1.5px; text-transform:uppercase; color:var(--labs-muted); }
.lab-control { margin-bottom:18px; }
.lab-control-row { display:flex; justify-content:space-between; gap:10px; align-items:center; margin-bottom:7px; }
.lab-control-label { color:var(--labs-text); font-size:.8rem; font-weight:700; }
.lab-control-value { color:var(--labs-accent); font-size:.78rem; font-weight:800; font-variant-numeric:tabular-nums; }
.lab-range { width:100%; accent-color:var(--labs-accent); }
.lab-select, .lab-number {
  width:100%;
  padding:10px 11px;
  color:var(--labs-text);
  border:1px solid var(--labs-border);
  background:var(--labs-deep);
  border-radius:10px;
  font:600 .8rem/1.2 'DM Sans',sans-serif;
  outline:none;
}
.lab-number:focus, .lab-select:focus { border-color:rgba(0,201,106,.55); }
.lab-switch-row { display:flex; align-items:center; justify-content:space-between; gap:10px; padding:10px 0; }
.lab-switch-label { color:var(--labs-muted); font-size:.77rem; }
.lab-toggle { width:46px; height:26px; border:1px solid var(--labs-border); background:rgba(255,255,255,.06); border-radius:999px; position:relative; cursor:pointer; padding:0; }
.lab-toggle::after { content:''; position:absolute; width:18px; height:18px; top:3px; left:3px; border-radius:50%; background:#6d8276; transition:.18s; }
.lab-toggle.on { background:rgba(0,201,106,.16); border-color:rgba(0,201,106,.48); }
.lab-toggle.on::after { left:23px; background:var(--labs-accent); box-shadow:0 0 12px rgba(0,201,106,.55); }
.lab-action-row { display:flex; gap:8px; flex-wrap:wrap; margin-top:6px; }
.lab-btn {
  border:1px solid var(--labs-border); background:rgba(255,255,255,.035); color:var(--labs-text);
  padding:10px 12px; border-radius:10px; font:700 .72rem/1 'DM Sans',sans-serif; cursor:pointer;
}
.lab-btn:hover { border-color:rgba(0,201,106,.45); background:rgba(0,201,106,.07); }
.lab-btn.primary { background:var(--labs-accent); color:#041008; border-color:var(--labs-accent); }
.lab-btn.primary:hover { background:#28dd84; }
.lab-note { margin-top:16px; padding:11px 12px; border:1px solid var(--labs-border); background:var(--labs-soft-2); border-radius:12px; color:var(--labs-muted); font-size:.7rem; line-height:1.55; }

.lab-stage { padding:14px; display:flex; flex-direction:column; min-width:0; }
.lab-stage-top { display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:10px; }
.lab-stage-title { font-weight:800; font-size:.82rem; }
.lab-stage-sub { color:var(--labs-muted); font-size:.7rem; }
.lab-canvas-wrap { flex:1; min-height:460px; position:relative; border:1px solid var(--labs-border); border-radius:16px; overflow:hidden; background:radial-gradient(circle at 55% 40%, rgba(0,201,106,.05), transparent 45%), #08100b; }
.lab-canvas { display:block; width:100%; height:100%; min-height:460px; touch-action:none; }
.lab-metrics { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:8px; margin-top:10px; }
.lab-metric { border:1px solid var(--labs-border); background:rgba(255,255,255,.022); border-radius:12px; padding:10px; min-width:0; }
.lab-metric-label { color:var(--labs-muted); font-size:.62rem; text-transform:uppercase; letter-spacing:1px; font-weight:800; }
.lab-metric-value { margin-top:5px; color:var(--labs-text); font-size:1rem; font-weight:800; font-variant-numeric:tabular-nums; }
.lab-metric-value.accent { color:var(--labs-accent); }
.lab-stage-foot { display:flex; justify-content:space-between; gap:10px; align-items:center; margin-top:9px; color:var(--labs-muted); font-size:.68rem; }
.lab-status { color:var(--labs-accent); font-weight:800; }

.lab-inspector { margin-top:10px; border-top:1px solid var(--labs-border); padding-top:11px; }
.lab-inspector-title { color:var(--labs-muted); font-size:.64rem; text-transform:uppercase; letter-spacing:1.2px; font-weight:800; margin-bottom:5px; }
.lab-inspector p { margin:0; color:rgba(230,240,233,.7); font-size:.75rem; line-height:1.65; }

.lab-circuit-svg { width:100%; height:100%; min-height:460px; display:block; background:linear-gradient(180deg, rgba(0,201,106,.02), transparent 35%); }
.circuit-wire { fill:none; stroke:rgba(230,240,233,.38); stroke-width:6; stroke-linecap:round; }
.circuit-wire.active { stroke:rgba(0,201,106,.72); }
.circuit-resistor { fill:#1a2b20; stroke:rgba(0,201,106,.6); stroke-width:2; rx:9; }
.circuit-battery { fill:#101d16; stroke:rgba(230,240,233,.32); stroke-width:2; rx:10; }
.circuit-text { fill:rgba(230,240,233,.78); font:700 15px 'DM Sans',sans-serif; }
.circuit-muted { fill:rgba(230,240,233,.42); font:600 12px 'DM Sans',sans-serif; }
.circuit-electron { fill:#00c96a; opacity:.8; }
.circuit-switch { fill:#121f17; stroke:rgba(230,240,233,.32); stroke-width:2; }
.circuit-switch.on { fill:rgba(0,201,106,.12); stroke:rgba(0,201,106,.6); }

.titration-wrap { position:relative; width:100%; height:100%; min-height:460px; display:grid; grid-template-columns:1.02fr 1fr; gap:10px; padding:10px; }
.titration-visual, .titration-graph { border:1px solid var(--labs-border); border-radius:14px; background:#09110c; overflow:hidden; min-width:0; }
.titration-svg { width:100%; height:100%; min-height:440px; display:block; }
.titration-curve { width:100%; height:100%; min-height:440px; display:block; }
.titration-label { fill:rgba(230,240,233,.7); font:700 12px 'DM Sans',sans-serif; }
.titration-small { fill:rgba(230,240,233,.45); font:600 11px 'DM Sans',sans-serif; }
.titration-axis { stroke:rgba(230,240,233,.16); stroke-width:1; }
.titration-curve-line { fill:none; stroke:#00c96a; stroke-width:3; }
.titration-current-line { stroke:rgba(244,197,66,.85); stroke-width:2; stroke-dasharray:5 5; }
.titration-point { fill:#f4c542; stroke:#0b1410; stroke-width:2; }

.lab-empty { padding:38px; border:1px dashed var(--labs-border); border-radius:16px; color:var(--labs-muted); text-align:center; }

@media (max-width: 980px) {
  .lab-grid { grid-template-columns:1fr; }
  .lab-shell { grid-template-columns:1fr; }
  .lab-controls { border-right:0; border-bottom:1px solid var(--labs-border); }
  .lab-stage { min-height:0; }
  .titration-wrap { grid-template-columns:1fr; }
}
@media (max-width: 700px) {
  .labs-nav { padding:0 14px; }
  .labs-nav-right { gap:6px; }
  .labs-nav-link:first-child { display:none; }
  .labs-wrap { width:min(100% - 20px, 1220px); }
  .labs-hero { padding:48px 0 22px; }
  .labs-hero h1 {
    font-size:clamp(2.9rem, 14vw, 5.8rem);
    letter-spacing:0;
    max-width:100%;
    overflow:hidden;
  }
  .labs-hero h1 em { display:inline-block; max-width:100%; white-space:nowrap; font-size:.9em; }
  .labs-library-head { display:block; }
  .lab-library-head p { margin-top:5px; }
  .lab-shell { min-height:0; }
  .lab-controls { padding:14px; }
  .lab-stage { padding:10px; }
  .lab-canvas-wrap, .lab-canvas, .lab-circuit-svg { min-height:360px; }
  .lab-metrics { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .lab-stage-foot { align-items:flex-start; flex-direction:column; }
  .titration-wrap { min-height:0; padding:7px; }
  .titration-svg, .titration-curve { min-height:330px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior:auto !important; transition:none !important; animation:none !important; }
}