/* Threat Modeling Lab — workspace styles.
 * Built on the locked Cyber Dark tokens from assets/css/style.css. */
  
* { box-sizing: border-box; }
html, body { overflow-x: clip; }

/* Custom Scrollbar Styles */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(16, 185, 129, 0.4) rgba(4, 12, 19, 0.5);
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(4, 12, 19, 0.6);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: rgba(16, 185, 129, 0.35);
  border-radius: 4px;
  border: 1px solid rgba(16, 185, 129, 0.2);
  transition: background 0.2s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(16, 185, 129, 0.65);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
}

::-webkit-scrollbar-corner {
  background: rgba(4, 12, 19, 0.6);
}

.lab-main {
  max-width: 1440px;
  margin: 0 auto;
  padding: 18px 20px 60px;
  width: 100%;
}

/* ---- Top bar ---- */
.lab-topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap; margin-bottom: 14px;
}
.lab-crumb-link {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--color-text-muted); font-size: 0.85rem; font-weight: 500;
}
.lab-crumb-link:hover { color: var(--color-accent); }
.lab-topbar-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.lab-chip {
  font-family: var(--font-mono); font-size: 0.74rem;
  color: var(--color-text-muted); background: var(--color-surface);
  border: 1px solid var(--color-border); border-radius: var(--radius-pill);
  padding: 5px 11px; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
}
.lab-chip i { color: var(--color-accent); }
.lab-lang {
  font-family: var(--font-mono); font-weight: 700; font-size: 0.74rem;
  color: var(--color-accent); background: rgba(16,185,129,0.12);
  border: 1px solid var(--color-border-accent); border-radius: var(--radius-pill);
  width: 38px; height: 30px; cursor: pointer; transition: background 0.2s;
}
.lab-lang:hover { background: rgba(16,185,129,0.22); }

/* ---- Hero ---- */
.lab-hero { text-align: center; padding: 8px 0 26px; }
.lab-hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem); margin: 14px 0 12px; letter-spacing: -0.02em;
}
.lab-hero-obj {
  color: var(--color-text-muted); max-width: 760px; margin: 0 auto;
  font-size: 0.98rem; line-height: 1.6;
}
.lab-hero-obj i { color: var(--color-accent); margin-right: 6px; }

/* ---- Grid ---- */
.lab-grid {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr) 330px;
  gap: 16px; align-items: start;
}
.lab-col {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px;
  min-width: 0;
}
.lab-col-head {
  display: flex; align-items: center; gap: 9px;
  font-weight: 700; font-size: 0.95rem; margin-bottom: 10px;
  color: var(--color-text);
}
.lab-col-head i { color: var(--color-accent); }

/* ---- Toolbox ---- */
.lab-draghint {
  font-size: 0.76rem; color: var(--color-text-dim); line-height: 1.5;
  margin: 0 0 12px; padding: 8px 10px; border-radius: var(--radius-sm);
  background: var(--color-paper-elevated); border: 1px solid var(--color-border);
}
.lab-toolbox { display: flex; flex-direction: column; gap: 9px; }
.lab-tool {
  display: flex; align-items: center; gap: 11px;
  padding: 10px 12px; border-radius: var(--radius-sm);
  background: var(--color-paper-elevated); border: 1px solid var(--color-border);
  cursor: grab; touch-action: none; user-select: none;
  transition: border-color 0.18s, transform 0.18s, box-shadow 0.18s;
}
.lab-tool:hover { border-color: var(--color-border-accent); transform: translateY(-2px); }
.lab-tool.is-dragging { opacity: 0.35; }
.lab-tool.is-armed {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-cyber);
  background: rgba(16,185,129,0.08);
}
.lab-tool.lab-hint { animation: labHint 1.6s ease; }
@keyframes labHint {
  0%, 100% { box-shadow: none; }
  40% { box-shadow: 0 0 0 2px var(--color-cyan), 0 0 18px var(--color-cyan-glow); border-color: var(--color-cyan); }
}
.lab-tool-ico {
  width: 38px; height: 38px; flex: 0 0 auto; border-radius: 10px;
  display: flex; align-items: center; justify-content: center; font-size: 1.05rem;
  background: rgba(255,255,255,0.05); border: 1px solid var(--color-border);
  color: var(--color-accent);
}
.lab-tool-block .lab-tool-ico { color: #f59e0b; }
.lab-tool-detective .lab-tool-ico { color: var(--color-cyan); }
.lab-tool-resilience .lab-tool-ico { color: #22d3ee; }
.lab-tool-name { font-size: 0.86rem; font-weight: 600; line-height: 1.25; }
.lab-tool-meta { font-size: 0.7rem; color: var(--color-text-dim); font-family: var(--font-mono); margin-top: 2px; }

/* ghost following pointer */
.lab-ghost {
  position: fixed; z-index: 9999; pointer-events: none; transform: translate(-50%, -50%);
  width: 230px; opacity: 0.92;
  display: flex; align-items: center; gap: 11px;
  padding: 10px 12px; border-radius: var(--radius-sm);
  background: var(--color-surface-hover); border: 1px solid var(--color-accent);
  box-shadow: var(--shadow-cyber);
}
.lab-ghost .lab-tool-ico { width: 34px; height: 34px; font-size: 1rem; }
.lab-ghost .lab-tool-name { font-size: 0.82rem; }

/* ---- Stage ---- */
.lab-col-stage { padding: 0; overflow: hidden; }
.lab-actions {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 12px 14px; border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}
.lab-scorebox { margin-left: auto; display: flex; gap: 14px; flex-wrap: wrap; }
.lab-score-item {
  font-family: var(--font-mono); font-size: 0.74rem; color: var(--color-text-muted);
  display: inline-flex; align-items: center; gap: 5px;
}
.lab-score-item i { color: var(--color-accent); }
.lab-score-item b { color: var(--color-text); }
.lab-btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-sans); font-weight: 600; font-size: 0.84rem;
  padding: 9px 14px; border-radius: var(--radius-sm); cursor: pointer;
  border: 1px solid var(--color-border); background: var(--color-paper-elevated);
  color: var(--color-text); transition: all 0.18s;
}
.lab-btn:hover { border-color: var(--color-border-accent); transform: translateY(-1px); }
.lab-btn-primary {
  background: var(--th-gradient, linear-gradient(135deg, var(--color-accent), var(--color-cyan)));
  color: #04130d; border: none; font-weight: 700;
}
.lab-btn-primary:hover { box-shadow: 0 8px 22px rgba(16,185,129,0.3); }
.lab-btn-ghost { background: transparent; }
.lab-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.lab-stage-wrap {
  position: relative; width: 100%; overflow: auto;
  background:
    radial-gradient(900px 500px at 70% -10%, rgba(6,182,212,0.06), transparent 60%),
    var(--color-paper);
  min-height: 320px;
  max-height: 76vh;
}
/* Scroll styling for the canvas / log so the full topology is reachable */
.lab-stage-wrap, .lab-log { scrollbar-width: thin; scrollbar-color: var(--color-accent) var(--color-paper-elevated); overscroll-behavior: contain; }
.lab-stage-wrap::-webkit-scrollbar, .lab-log::-webkit-scrollbar { width: 10px; height: 10px; }
.lab-stage-wrap::-webkit-scrollbar-track, .lab-log::-webkit-scrollbar-track { background: var(--color-paper-elevated); border-radius: 8px; }
.lab-stage-wrap::-webkit-scrollbar-thumb, .lab-log::-webkit-scrollbar-thumb { background: var(--color-border-accent); border-radius: 8px; }
.lab-stage-wrap::-webkit-scrollbar-thumb:hover, .lab-log::-webkit-scrollbar-thumb:hover { background: var(--color-accent); }
.lab-stage { position: relative; margin: 0 auto; }
.lab-stage.armed-mode, .lab-armed-mode .lab-node, .lab-armed-mode [data-edge] { cursor: crosshair; }

/* zones */
.lab-zone {
  position: absolute; border: 1px dashed var(--color-border);
  border-radius: var(--radius-md); background: rgba(255,255,255,0.012);
  pointer-events: none;
}
.lab-zone-label {
  position: absolute; top: 8px; left: 12px;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--color-text-dim);
}

/* svg edges */
.lab-svg { position: absolute; inset: 0; overflow: visible; }
.lab-edge { fill: none; stroke: rgba(245,158,11,0.55); stroke-width: 2; stroke-dasharray: 6 6; }
.lab-edge-mgmt { stroke: rgba(239,68,68,0.55); stroke-dasharray: 3 5; }
.lab-edge.is-shielded { stroke: var(--color-accent); stroke-dasharray: none; stroke-width: 2.4; filter: drop-shadow(0 0 4px var(--color-accent-glow)); }
.lab-edge-hit { fill: none; stroke: transparent; stroke-width: 16; pointer-events: stroke; cursor: pointer; }
.lab-edge-label {
  position: absolute; transform: translate(-50%, -50%);
  font-family: var(--font-mono); font-size: 0.66rem; color: var(--color-text-dim);
  background: var(--color-paper); border: 1px solid var(--color-border);
  padding: 1px 6px; border-radius: var(--radius-pill); white-space: nowrap; pointer-events: none;
}
.lab-edge-badge {
  position: absolute; transform: translate(-50%, -50%);
  width: 22px; height: 22px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 0.7rem;
  background: var(--color-surface-hover); border: 1px solid var(--color-accent); color: var(--color-accent);
  pointer-events: none; z-index: 6;
}

/* nodes */
.lab-node {
  position: absolute; border-radius: var(--radius-md);
  background: var(--color-surface); border: 1px solid var(--color-border);
  padding: 8px 9px; display: flex; flex-direction: column; align-items: center;
  gap: 5px; text-align: center; transition: border-color 0.18s, box-shadow 0.18s;
}
.lab-node-icon {
  width: 34px; height: 34px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center; font-size: 1rem;
  background: rgba(255,255,255,0.05); border: 1px solid var(--color-border); color: var(--color-accent);
}
.lab-node-threat .lab-node-icon { color: #ff4757; border-color: rgba(255,71,87,0.35); background: rgba(255,71,87,0.08); }
.lab-node-title { font-size: 0.78rem; font-weight: 600; line-height: 1.2; }
.lab-node-risks { display: flex; flex-wrap: wrap; gap: 4px; justify-content: center; }
.lab-node-controls { display: flex; flex-wrap: wrap; gap: 4px; justify-content: center; margin-top: 2px; }
.lab-node.is-secured { border-color: var(--color-border-accent); box-shadow: 0 0 0 1px rgba(16,185,129,0.25); }
.lab-node.lab-valid { border-color: var(--color-accent); box-shadow: 0 0 0 2px rgba(16,185,129,0.4); }
.lab-node.lab-invalid { border-color: #ff4757; box-shadow: 0 0 0 2px rgba(255,71,87,0.4); }
.lab-edge-hit.lab-valid { stroke: rgba(16,185,129,0.25); }
.lab-edge-hit.lab-invalid { stroke: rgba(255,71,87,0.25); }
.lab-node.lab-shake { animation: labShake 0.42s; }
@keyframes labShake {
  0%,100% { transform: translateX(0); } 20% { transform: translateX(-5px); }
  40% { transform: translateX(5px); } 60% { transform: translateX(-3px); } 80% { transform: translateX(3px); }
}

.lab-risk {
  font-size: 0.62rem; font-family: var(--font-mono); padding: 2px 6px;
  border-radius: var(--radius-pill); display: inline-flex; align-items: center; gap: 4px;
  border: 1px solid transparent;
}
.lab-risk.is-open { color: #ff8a8a; background: rgba(255,71,87,0.1); border-color: rgba(255,71,87,0.3); }
.lab-risk.is-fixed { color: var(--color-accent); background: rgba(16,185,129,0.12); border-color: rgba(16,185,129,0.3); text-decoration: line-through; opacity: 0.85; }
.lab-risk i { font-size: 0.58rem; }

.lab-placed {
  font-size: 0.64rem; font-weight: 600; font-family: var(--font-mono);
  padding: 2px 7px; border-radius: var(--radius-pill); cursor: pointer;
  display: inline-flex; align-items: center; gap: 4px;
}
.lab-placed-block { color: #f59e0b; background: rgba(245,158,11,0.12); border: 1px solid rgba(245,158,11,0.3); }
.lab-placed-detective { color: var(--color-cyan); background: rgba(6,182,212,0.12); border: 1px solid rgba(6,182,212,0.3); }
.lab-placed-resilience { color: #22d3ee; background: rgba(34,211,238,0.12); border: 1px solid rgba(34,211,238,0.3); }
.lab-placed:hover { filter: brightness(1.2); }

/* packet + fx */
.lab-packet {
  position: absolute; width: 15px; height: 15px; border-radius: 50%;
  background: #ff4757; box-shadow: 0 0 14px #ff4757; z-index: 20;
  transform: translate(-50%, -50%); pointer-events: none;
}
.lab-fx { position: absolute; left: 50%; top: 50%; width: 20px; height: 20px; transform: translate(-50%,-50%); pointer-events: none; z-index: 15; }
.lab-fx-block::after, .lab-fx-breach::after {
  content: ""; position: absolute; left: 50%; top: 50%; border-radius: 50%;
  transform: translate(-50%,-50%); width: 20px; height: 20px;
}
.lab-fx-block::after { border: 2px solid var(--color-accent); animation: labRing 0.9s ease-out forwards; }
.lab-fx-breach::after { border: 2px solid #ff4757; animation: labRing 0.9s ease-out forwards; }
@keyframes labRing {
  0% { width: 20px; height: 20px; opacity: 0.9; }
  100% { width: 150px; height: 110px; opacity: 0; }
}

/* ---- Inspector ---- */
.lab-tabs { display: flex; gap: 6px; margin-bottom: 12px; }
.lab-tab {
  flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font-size: 0.76rem; font-weight: 600; padding: 8px 6px; cursor: pointer;
  background: var(--color-paper-elevated); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); color: var(--color-text-muted); transition: all 0.18s;
}
.lab-tab i { font-size: 0.8rem; }
.lab-tab.is-active { color: var(--color-accent); border-color: var(--color-border-accent); background: rgba(16,185,129,0.08); }
.lab-panel { display: none; }
.lab-panel.is-active { display: block; }
.lab-subhead {
  display: flex; align-items: center; gap: 8px; font-size: 0.8rem; font-weight: 700;
  color: var(--color-text-muted); margin: 16px 0 10px; padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}
.lab-subhead:first-child { margin-top: 0; }
.lab-subhead i { color: var(--color-accent); }

.lab-brief-text { font-size: 0.86rem; line-height: 1.6; color: var(--color-text-muted); margin: 0; }

.lab-risks { display: flex; flex-direction: column; gap: 12px; }
.lab-risk-row {
  background: var(--color-paper-elevated); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); padding: 10px;
}
.lab-risk-row-head {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  font-size: 0.82rem; font-weight: 600; margin-bottom: 8px;
}
.lab-risk-row-head i { color: var(--color-accent); margin-right: 6px; }
.lab-risk-count { font-family: var(--font-mono); font-size: 0.7rem; color: var(--color-text-dim); border: 1px solid var(--color-border); border-radius: var(--radius-pill); padding: 1px 7px; }
.lab-risk-count.is-done { color: var(--color-accent); border-color: var(--color-border-accent); }
.lab-risk-pill {
  display: inline-flex; align-items: center; gap: 4px; font-size: 0.68rem;
  font-family: var(--font-mono); padding: 2px 7px; margin: 0 4px 4px 0; border-radius: var(--radius-pill);
}
.lab-risk-pill.is-open { color: #ff8a8a; background: rgba(255,71,87,0.1); border: 1px solid rgba(255,71,87,0.3); }
.lab-risk-pill.is-fixed { color: var(--color-accent); background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.3); }

.lab-attacks { display: flex; flex-direction: column; gap: 8px; }
.lab-attack-row {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--color-paper-elevated); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); padding: 9px 11px;
}
.lab-attack-name { font-size: 0.8rem; display: inline-flex; align-items: center; gap: 7px; }
.lab-attack-name i { color: var(--color-text-dim); font-size: 0.74rem; }
.lab-attack-state {
  font-family: var(--font-mono); font-size: 0.66rem; font-weight: 700; letter-spacing: 0.05em;
  padding: 3px 9px; border-radius: var(--radius-pill); white-space: nowrap; color: var(--color-text-dim);
  border: 1px solid var(--color-border); background: var(--color-surface);
}
.lab-attack-state.blocked { color: var(--color-accent); border-color: var(--color-border-accent); background: rgba(16,185,129,0.1); }
.lab-attack-state.breached { color: #ff4757; border-color: rgba(255,71,87,0.4); background: rgba(255,71,87,0.1); }

.lab-log {
  font-family: var(--font-mono); font-size: 0.72rem; line-height: 1.6;
  background: #0a0e14; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  padding: 10px; height: 320px; overflow-y: auto; color: var(--color-text-muted);
}
.lab-log-line { white-space: pre-wrap; word-break: break-word; }
.lab-log-ts { color: var(--color-text-dim); }
.lab-log-ok { color: var(--color-accent); }
.lab-log-bad { color: #ff6b6b; }
.lab-log-run { color: var(--color-cyan); }
.lab-log-sim { color: var(--color-text); border-bottom: 1px solid var(--color-border); padding-bottom: 4px; margin-bottom: 4px; }

/* ---- Result ---- */
.lab-result { display: none; margin: 14px; padding: 18px; border-radius: var(--radius-md); border: 1px solid var(--color-border); }
.lab-result.is-show { display: block; }
.lab-result.is-secured { border-color: var(--color-border-accent); background: rgba(16,185,129,0.05); }
.lab-result.is-breached { border-color: rgba(255,71,87,0.4); background: rgba(255,71,87,0.05); }
.lab-result-head { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 800; }
.lab-result.is-secured .lab-result-head { color: var(--color-accent); }
.lab-result.is-breached .lab-result-head { color: #ff4757; }
.lab-result-score { font-family: var(--font-mono); font-size: 2.2rem; font-weight: 800; margin: 6px 0; }
.lab-result-score span { font-size: 1rem; color: var(--color-text-dim); }
.lab-result-rating { font-size: 0.9rem; color: var(--color-text-muted); }
.lab-result-rating b { color: var(--color-text); }
.lab-result-msg { font-size: 0.86rem; color: var(--color-text-muted); margin: 10px 0; }
.lab-result-stats { display: flex; flex-wrap: wrap; gap: 14px; font-family: var(--font-mono); font-size: 0.74rem; color: var(--color-text-muted); margin-top: 8px; }
.lab-result-stats i { color: var(--color-accent); margin-right: 4px; }
.lab-result-debrief { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--color-border); }
.lab-result-debrief p { font-size: 0.85rem; line-height: 1.6; color: var(--color-text-muted); margin: 8px 0; }
.lab-result-refs { font-size: 0.74rem; color: var(--color-text-dim); font-family: var(--font-mono); }
.lab-result-refs a { margin-left: 4px; }
.lab-result .lab-btn { margin-top: 14px; }

/* ---- Toast ---- */
.lab-toast {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%) translateY(20px);
  background: var(--color-surface-hover); border: 1px solid var(--color-border);
  color: var(--color-text); padding: 10px 18px; border-radius: var(--radius-pill);
  font-size: 0.84rem; font-weight: 500; opacity: 0; pointer-events: none; z-index: 9999;
  transition: opacity 0.2s, transform 0.2s; box-shadow: var(--shadow-cyber);
}
.lab-toast.is-show { opacity: 1; transform: translateX(-50%) translateY(0); }
.lab-toast.bad { border-color: rgba(255,71,87,0.5); color: #ff8a8a; }

/* ---- Footer ---- */
.lab-footer { border-top: 1px solid var(--color-border); margin-top: 30px; padding: 18px 20px; }
.lab-footer-inner { max-width: 1440px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.lab-footer .brand { font-weight: 800; display: inline-flex; align-items: center; gap: 8px; }
.lab-footer .brand i { color: var(--color-accent); }
.lab-footer-meta { font-family: var(--font-mono); font-size: 0.74rem; color: var(--color-text-dim); }

/* ---- Hub grid ---- */
.hub-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 18px; }
.hub-puzzle {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 20px; display: flex; flex-direction: column;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.hub-puzzle:hover { transform: translateY(-3px); border-color: var(--color-border-accent); box-shadow: var(--shadow-cyber); }
.hub-puzzle-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.hub-puzzle-icon {
  width: 46px; height: 46px; border-radius: 13px; background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border); color: var(--color-accent);
  display: flex; align-items: center; justify-content: center; font-size: 1.25rem; flex-shrink: 0;
}
.hub-puzzle-chips { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.lab-lvl-green { color: var(--color-accent); border-color: var(--color-border-accent); background: rgba(16,185,129,0.12); }
.lab-lvl-blue { color: var(--color-cyan); border-color: rgba(6,182,212,0.35); background: rgba(6,182,212,0.12); }
.lab-lvl-red { color: #ff6b6b; border-color: rgba(255,71,87,0.35); background: rgba(255,71,87,0.1); }
.chip-free { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; padding: 3px 9px; border-radius: var(--radius-pill); background: rgba(16,185,129,0.12); color: var(--color-accent); border: 1px solid rgba(16,185,129,0.3); }
.chip-priv { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; padding: 3px 9px; border-radius: var(--radius-pill); background: rgba(245,158,11,0.12); color: #f59e0b; border: 1px solid rgba(245,158,11,0.3); }
.hub-puzzle h3 { margin: 0 0 8px; font-size: 1.1rem; }
.hub-puzzle p { color: var(--color-text-muted); font-size: 0.86rem; line-height: 1.55; margin: 0 0 14px; flex: 1; }
.hub-puzzle-meta { display: flex; flex-direction: column; gap: 5px; font-size: 0.74rem; color: var(--color-text-dim); font-family: var(--font-mono); margin-bottom: 16px; }
.hub-puzzle-meta i { color: var(--color-accent); width: 16px; }
.hub-puzzle-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.hub-best { font-family: var(--font-mono); font-size: 0.76rem; color: var(--color-text-muted); }
.hub-best i { color: #f59e0b; }
.hub-best b { color: var(--color-text); }
.exam-btn {
  display: inline-flex; align-items: center; gap: 8px; font-size: 0.84rem; font-weight: 600;
  padding: 9px 15px; border-radius: var(--radius-sm); text-decoration: none;
  background: var(--th-gradient, linear-gradient(135deg, var(--color-accent), var(--color-cyan)));
  color: #04130d; transition: transform 0.2s, box-shadow 0.2s;
}
.exam-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(16,185,129,0.3); color: #04130d; }

/* How it works strip */
.lab-how { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 22px 0 6px; }
.lab-how-item {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md);
  padding: 14px; display: flex; flex-direction: column; gap: 3px;
}
.lab-how-num {
  width: 26px; height: 26px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 700; font-size: 0.8rem; color: var(--color-accent);
  background: rgba(16,185,129,0.12); border: 1px solid var(--color-border-accent); margin-bottom: 6px;
}
.lab-how-item b { font-size: 0.92rem; }
.lab-how-item span:last-child { font-size: 0.76rem; color: var(--color-text-muted); line-height: 1.45; }

/* ---- Responsive ---- */
@media (max-width: 1100px) {
  .lab-grid { grid-template-columns: 260px minmax(0,1fr); }
  .lab-col-inspector { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .lab-grid { grid-template-columns: 1fr; }
  .lab-scorebox { width: 100%; margin-left: 0; }
  .lab-actions { gap: 8px; }
  .lab-main { padding: 16px 16px 48px; }
  .lab-hero { padding: 12px 10px 20px; }
  .lab-col { padding: 16px; border-radius: var(--radius-md); }
}

/* STRIDE Panel & Rows */
.lab-stride-panel { display: flex; flex-direction: column; gap: 12px; padding: 12px 0; }
.lab-stride-row { display: flex; flex-direction: column; gap: 4px; }
.lab-stride-info { display: flex; justify-content: space-between; font-size: 0.82rem; }
.lab-stride-info b { color: var(--color-text); font-weight: 600; }
.lab-stride-info span { color: var(--color-text-muted); font-size: 0.76rem; }
.lab-stride-bar { height: 7px; background: rgba(255,255,255,0.08); border-radius: 4px; overflow: hidden; }
.lab-stride-fill { height: 100%; background: linear-gradient(90deg, var(--color-accent), #34d399); transition: width 0.4s ease; }

/* Icon Button & Sound Toggle */
.lab-btn-icon { padding: 9px 12px; font-size: 0.95rem; }
.lab-btn-icon.is-muted { opacity: 0.5; color: var(--color-text-muted); }

/* Report Modal & Print Styles */
.lab-modal-backdrop {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(4, 12, 19, 0.82); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center; padding: 20px;
  animation: labFadeIn 0.25s ease;
}
.lab-modal-content {
  background: var(--color-surface, #0b1716); border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-lg, 16px); width: 100%; max-width: 820px; max-height: 90vh;
  display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.6), 0 0 30px rgba(16,185,129,0.15);
}
.lab-modal-header {
  padding: 16px 22px; border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: space-between;
}
.lab-modal-header h3 { font-size: 1.1rem; font-weight: 700; margin: 0; display: flex; align-items: center; gap: 10px; }
.lab-modal-close { background: none; border: none; color: var(--color-text-muted); font-size: 1.5rem; cursor: pointer; }
.lab-modal-close:hover { color: #fff; }
.lab-modal-body { padding: 22px; overflow-y: auto; display: flex; flex-direction: column; gap: 18px; }
.lab-modal-footer { padding: 14px 22px; border-top: 1px solid var(--color-border); display: flex; justify-content: flex-end; gap: 12px; }

.lab-report-meta-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.lab-report-card { background: rgba(0,0,0,0.3); border: 1px solid var(--color-border); padding: 12px; border-radius: var(--radius-md); display: flex; flex-direction: column; gap: 4px; }
.lab-report-card .lbl { font-size: 0.72rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.lab-report-card b { font-size: 0.95rem; font-weight: 700; }

.lab-report-sub { font-size: 0.92rem; font-weight: 700; color: var(--color-accent); display: flex; align-items: center; gap: 8px; margin: 6px 0 0; }
.lab-report-table { width: 100%; border-collapse: collapse; font-size: 0.84rem; text-align: left; }
.lab-report-table th, .lab-report-table td { padding: 8px 12px; border-bottom: 1px solid var(--color-border); }
.lab-report-table th { color: var(--color-text-muted); font-weight: 600; font-size: 0.78rem; }

.lab-stride-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; }
.lab-stride-card { background: rgba(0,0,0,0.25); border: 1px solid var(--color-border); padding: 10px 12px; border-radius: var(--radius-sm); display: flex; flex-direction: column; gap: 6px; }
.lab-stride-card .hdr { display: flex; justify-content: space-between; font-size: 0.8rem; font-weight: 600; }
.lab-stride-card .bar-wrap { height: 6px; background: rgba(255,255,255,0.08); border-radius: 3px; overflow: hidden; }
.lab-stride-card .bar-fill { height: 100%; background: var(--color-accent); transition: width 0.3s; }
.lab-stride-card .ftr { font-size: 0.72rem; color: var(--color-text-muted); }

.lab-report-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; font-size: 0.84rem; }
.lab-report-list li { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-radius: var(--radius-sm); background: rgba(0,0,0,0.2); }
.lab-report-list li.is-ok i { color: var(--color-ok); }
.lab-report-list li.is-bad i { color: var(--color-bad); }

@keyframes labFadeIn { from { opacity: 0; } to { opacity: 1; } }

@media print {
  body * { visibility: hidden; }
  #labReportModal, #labReportModal * { visibility: visible; }
  #labReportModal { position: absolute; left: 0; top: 0; width: 100%; height: auto; background: #fff; color: #000; }
  .lab-modal-content { border: none; box-shadow: none; max-width: 100%; }
  .lab-modal-close, .lab-modal-footer { display: none; }
}