:root{--bg:#f8f9fb;--panel:#ffffff;--text:#1f2937;--muted:#6b7280;--line:#d1d5db;--accent:#0f766e}*{box-sizing:border-box}body{margin:0;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:var(--bg)}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line);background:var(--panel)}.toolbar .title{font-weight:700}.toolbar button{border:1px solid var(--line);border-radius:6px;padding:6px 10px;background:var(--panel);cursor:pointer}.status{min-width:220px;font-size:12px;text-align:right;color:var(--muted)}.value-input{width:62px;padding:2px 4px;border:1px solid var(--line);border-radius:4px;font-size:12px;color:var(--text);background:var(--panel)}.value-input::-webkit-outer-spin-button,.value-input::-webkit-inner-spin-button{margin:0}.value-badge{min-width:42px;font-size:12px;color:var(--muted);text-align:right}.layout{display:grid;grid-template-columns:1fr 260px;gap:12px;padding:12px;height:calc(100vh - 58px)}.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}.graph-panel{position:relative}.graph-panel::before{content:"";position:absolute;inset:0;background-image:url(./assets/antarctica_contour.png);background-repeat:no-repeat;background-position:center;background-size:68%auto;opacity:.16;pointer-events:none}#chart{width:100%;height:100%;display:block;position:relative;z-index:1}.side-panel{padding:12px;overflow:auto}.side-panel h3{margin:8px 0;font-size:13px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}.legend-item{display:flex;align-items:center;gap:8px;margin:6px 0;font-size:12px}.settings-card{margin-top:10px;margin-bottom:10px;padding:10px;border:1px solid #dce3ea;border-radius:10px;background:linear-gradient(180deg,#f8fbff 0,#f2f6fb 100%)}.settings-title{font-size:12px;font-weight:700;color:#334155;text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px}.settings-row{display:flex;flex-direction:column;gap:6px;margin-bottom:10px}.settings-row:last-child{margin-bottom:0}.settings-row label{font-size:12px;color:#475569}.settings-controls{display:grid;grid-template-columns:1fr 68px;gap:8px;align-items:center}.settings-controls input[type=range]{width:100%}.settings-input{width:100%;border:1px solid var(--line);border-radius:4px;padding:4px 6px;font-size:12px;background:#fff;color:var(--text)}.inline-check{display:inline-flex;align-items:center;gap:8px}.settings-buttons{display:grid;grid-template-columns:1fr 1fr;gap:8px}.settings-buttons button{border:1px solid var(--line);border-radius:6px;padding:6px 8px;background:#fff;cursor:pointer;font-size:12px}.selection-rect{fill:#0ea5e91f;stroke:#0284c7;stroke-width:1;stroke-dasharray:4 2;pointer-events:none}.swatch{width:10px;height:10px;border-radius:2px;border:1px solid #00000022}.info{font-size:12px;line-height:1.5;color:var(--text)}.muted{color:var(--muted)}