.plotter-intro { padding: 48px 0 24px; }
.plotter-intro h1 { max-width: 850px; font-size: clamp(2rem, 5vw, 3.75rem); letter-spacing: -.04em; line-height: 1.08; margin: 12px 0 20px; }
.plotter-intro p { max-width: 780px; line-height: 1.75; }
.plotter-label { color: var(--accent); text-transform: uppercase; font-weight: 700; letter-spacing: .1em; font-size: .8rem; }
.plotter-stats { display: flex; flex-wrap: wrap; gap: 12px 28px; margin: 24px 0; }
.plotter-stats strong { display: block; font-size: 1.15rem; }
.plotter-stats span { color: var(--muted); font-size: .9rem; }
.plotter-toolbar { display: flex; gap: 8px; flex-wrap: wrap; padding: 14px; border-bottom: 1px solid var(--border); }
.plotter-toolbar button { color: var(--text); background: var(--panel); border: 1px solid var(--border); padding: 9px 15px; border-radius: 8px; cursor: pointer; }
.plotter-toolbar button:hover { border-color: var(--accent); }
.plotter-toolbar button:focus-visible, .plotter-controls input:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
#plotter-view { height: clamp(330px, 56vw, 610px); width: 100%; background: #edf2f2; }
#plotter-view canvas { display: block; width: 100%; height: 100%; touch-action: none; }
.plotter-controls { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; padding: 20px; }
.plotter-controls label { font-size: .9rem; display: block; margin-bottom: 9px; }
.plotter-controls input[type=range] { width: 100%; accent-color: var(--accent); }
.plotter-controls output { float: right; color: var(--muted); }
.plotter-status { padding: 0 20px 18px; color: var(--muted); font-size: .85rem; line-height: 1.6; }
.plotter-section { margin: 32px 0; padding: 28px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel); }
.plotter-section h2 { margin-top: 0; letter-spacing: -.025em; }
.plotter-section p, .plotter-section li { line-height: 1.8; }
.plotter-section a:not(.btn) { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.plotter-section figure { margin: 24px 0; }
.plotter-section img { width: 100%; height: auto; border-radius: 8px; }
.plotter-section figcaption { color: var(--muted); font-size: .9rem; margin-top: 8px; line-height: 1.6; }
.plotter-table-wrap { overflow-x: auto; max-width: 100%; }
.plotter-table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: .9rem; }
.plotter-table th, .plotter-table td { text-align: left; vertical-align: top; padding: 12px; border-bottom: 1px solid var(--border); line-height: 1.6; }
.plotter-table th { color: var(--accent); }
.plotter-downloads { display: flex; flex-wrap: wrap; gap: 10px; }
.plotter-two { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.plotter-two > div { min-width: 0; }
.plotter-section pre { overflow: auto; background: var(--bg0); padding: 18px; border-radius: 8px; }
@media (max-width: 640px) {
 .plotter-controls, .plotter-two { grid-template-columns: 1fr; }
 .plotter-section { padding: 20px; }
 .plotter-controls { gap: 12px; }
 .plotter-intro { padding-top: 30px; }
}
@media (max-width: 640px) {
 .header-inner { flex-wrap: wrap; }
 .header-inner .nav { flex-wrap: wrap; gap: 6px; }
}