/* quadratic-inequality-solve explainer; every selector is scoped to .explain-quadratic-inequality-solve. */
.explain-quadratic-inequality-solve .qs-core { margin:16px 0 12px; font-size:15px; font-weight:600; line-height:1.65; }
.explain-quadratic-inequality-solve .qs-problem { display:flex; align-items:baseline; gap:8px; margin:0 0 12px; padding:10px 14px; border:1px solid #f0dcc0; border-radius:12px; background:#fffaf2; color:#5e4520; font-size:14px; line-height:1.7; }
.explain-quadratic-inequality-solve .qs-badge { flex:none; padding:1px 7px; border-radius:6px; background:#d98a1f; color:#fff; font-size:11.5px; font-weight:700; letter-spacing:.04em; }
.explain-quadratic-inequality-solve .qs-explorer { display:grid; gap:10px; padding:14px; border:1px solid #dbe8e4; border-radius:16px; background:linear-gradient(180deg,#f5fbfa,#fbfdfc); }
.explain-quadratic-inequality-solve .qs-ask { margin:0; color:#33504a; font-size:14px; font-weight:600; }
.explain-quadratic-inequality-solve .qs-targets { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:8px; }
.explain-quadratic-inequality-solve .qs-targets button { padding:8px 4px; border:1px solid #d6e6e1; border-radius:11px; background:#fff; color:var(--ink); font:inherit; font-size:15px; cursor:pointer; }
.explain-quadratic-inequality-solve .qs-targets button[aria-pressed="true"] { border-color:var(--teal); background:#e9f6f2; box-shadow:inset 0 0 0 1px var(--teal); }
.explain-quadratic-inequality-solve .qs-targets button:focus-visible { outline:3px solid #82cfc7; outline-offset:2px; }
.explain-quadratic-inequality-solve .qs-graph { display:block; width:100%; max-width:560px; height:auto; margin:0 auto; }
.explain-quadratic-inequality-solve .qs-graph [hidden] { display:none; }
.explain-quadratic-inequality-solve .qs-axis { fill:none; stroke:#9dafaa; stroke-width:1.3; }
.explain-quadratic-inequality-solve .qs-axis-label { fill:#46605a; font-size:13px; font-style:italic; }
.explain-quadratic-inequality-solve .qs-curve { fill:none; stroke:#b9cbc6; stroke-width:2.2; }
.explain-quadratic-inequality-solve .qs-curve-on { fill:none; stroke:#087f79; stroke-width:3.6; stroke-linecap:round; }
.explain-quadratic-inequality-solve .qs-curve-label { fill:#46605a; font-size:13px; }
.explain-quadratic-inequality-solve .qs-guide { stroke:#c9d8d4; stroke-width:1; stroke-dasharray:3 4; }
.explain-quadratic-inequality-solve .qs-root-label { fill:#33504a; font-size:13.5px; font-weight:600; }
.explain-quadratic-inequality-solve .qs-line { stroke:#9dafaa; stroke-width:1.3; }
.explain-quadratic-inequality-solve .qs-line-label { fill:#46605a; font-size:13px; }
.explain-quadratic-inequality-solve .qs-ray { stroke:#087f79; stroke-width:4; }
.explain-quadratic-inequality-solve .qs-ray-end { fill:#087f79; }
.explain-quadratic-inequality-solve .qs-root, .explain-quadratic-inequality-solve .qs-dot { fill:#087f79; stroke:#087f79; stroke-width:2; }
.explain-quadratic-inequality-solve .qs-root.open, .explain-quadratic-inequality-solve .qs-dot.open { fill:#fff; }
.explain-quadratic-inequality-solve .qs-answer { display:grid; grid-template-columns:auto 1fr; align-items:baseline; gap:2px 10px; margin:0; padding:9px 12px; border:1px solid #bfe0d6; border-radius:11px; background:#eef8f5; font-size:15px; font-weight:600; }
.explain-quadratic-inequality-solve .qs-answer[hidden] { display:none; }
.explain-quadratic-inequality-solve .qs-answer small { grid-column:2; color:var(--muted); font-size:12.5px; font-weight:400; }
.explain-quadratic-inequality-solve .qs-tag { padding:1px 8px; border-radius:6px; background:#1f3b39; color:#fff; font-size:12px; font-weight:600; }
.explain-quadratic-inequality-solve .qs-motto { margin:0; color:#8a5a1c; font-size:14px; font-weight:650; text-align:center; }
.explain-quadratic-inequality-solve .qs-table { width:100%; margin:14px 0 0; border-collapse:separate; border-spacing:0; border:1px solid #e0ebe8; border-radius:14px; overflow:hidden; font-size:14px; table-layout:fixed; }
.explain-quadratic-inequality-solve .qs-table caption { padding:0 0 6px; color:#33504a; font-weight:700; text-align:left; }
.explain-quadratic-inequality-solve .qs-table th, .explain-quadratic-inequality-solve .qs-table td { padding:8px 10px; border-bottom:1px solid #e0ebe8; text-align:center; vertical-align:middle; }
.explain-quadratic-inequality-solve .qs-table tbody tr:last-child > * { border-bottom:0; }
.explain-quadratic-inequality-solve .qs-table thead th { background:#f3f8f7; color:#46605a; font-weight:600; }
.explain-quadratic-inequality-solve .qs-table tbody th { width:32%; color:#33504a; text-align:left; }
.explain-quadratic-inequality-solve .qs-table tbody th small { display:block; color:var(--muted); font-size:12.5px; font-weight:400; white-space:nowrap; }
.explain-quadratic-inequality-solve .qs-hidden { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); }
.explain-quadratic-inequality-solve .qs-notes { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:10px; margin:16px 0 0; }
.explain-quadratic-inequality-solve .qs-note { padding:12px 14px; border:1px solid #e0ebe8; border-radius:14px; background:#fbfdfc; font-size:13.5px; line-height:1.7; }
.explain-quadratic-inequality-solve .qs-note h3 { margin:0 0 6px; font-size:14px; font-weight:700; }
.explain-quadratic-inequality-solve .qs-note p { margin:0 0 6px; }
.explain-quadratic-inequality-solve .qs-note > :last-child { margin-bottom:0; }
.explain-quadratic-inequality-solve .qs-link { padding:0; border:0; background:none; color:var(--teal-dark); font:inherit; font-weight:650; text-decoration:underline; text-underline-offset:3px; cursor:pointer; }
@media(max-width:760px) {
  .explain-quadratic-inequality-solve .qs-notes { grid-template-columns:1fr; }
}
@media(max-width:600px) {
  .explain-quadratic-inequality-solve .qs-core { font-size:14px; }
  .explain-quadratic-inequality-solve .qs-explorer { padding:10px 8px; }
  .explain-quadratic-inequality-solve .qs-targets { gap:5px; }
  .explain-quadratic-inequality-solve .qs-targets button { font-size:13.5px; padding:7px 2px; }
  .explain-quadratic-inequality-solve .qs-answer { padding:8px 10px; font-size:14px; }
  .explain-quadratic-inequality-solve .qs-table th, .explain-quadratic-inequality-solve .qs-table td { padding:7px 4px; font-size:13px; }
  .explain-quadratic-inequality-solve .qs-table tbody th { width:34%; padding-left:8px; }
  .explain-quadratic-inequality-solve .qs-table tbody th small { font-size:11.5px; }
}