:root{--bg:#f6f8fa;--bg-elev:#fff;--bg-sunken:#eef2f5;--border:#d8e0e6;--border-strong:#b9c4cd;--text:#0e1a26;--text-muted:#56697a;--text-subtle:#7a8896;--lake-50:#e6f3f5;--lake-100:#c2e2e7;--lake-200:#8fcdd5;--lake-300:#5cb3bf;--lake-400:#3a96a4;--lake-500:#1f7a89;--lake-600:#155f6c;--lake-700:#0f4a55;--lake-800:#0b3741;--lake-900:#062029;--dry-100:#fbe6c7;--dry-300:#f1b25a;--dry-500:#d97a1f;--dry-700:#9a4a14;--th-weir:#2f6b3a;--th-open:#1f7a89;--th-close:#6b5cbf;--radius:12px;--radius-sm:8px;--shadow-sm:0 1px 2px #0a1e2d0d;--shadow-md:0 4px 18px #0a1e2d14;--font-sans:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono:ui-monospace, "JetBrains Mono", Menlo, "SF Mono", Consolas, monospace;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}.dark{--bg:#061821;--bg-elev:#0c2530;--bg-sunken:#04121a;--border:#173341;--border-strong:#265164;--text:#e8f1f5;--text-muted:#a4b8c4;--text-subtle:#7a8e9c;--th-weir:#6fd089;--th-open:#5cb3bf;--th-close:#a89cff;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 6px 22px #00000059;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%}body{font-family:var(--font-sans);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;font-size:15px;line-height:1.5}a{color:var(--lake-500);text-underline-offset:2px;-webkit-text-decoration:underline #1f7a8959;text-decoration:underline #1f7a8959}a:hover{-webkit-text-decoration-color:var(--lake-500);text-decoration-color:var(--lake-500)}.dark a{color:var(--lake-200)}.dark a:hover{-webkit-text-decoration-color:var(--lake-200);text-decoration-color:var(--lake-200)}button{cursor:pointer;border:1px solid var(--border);background:var(--bg-elev);color:var(--text);border-radius:var(--radius-sm);padding:6px 12px;font-family:inherit;font-size:13px;transition:border-color .15s,background .15s,color .15s}button:hover{border-color:var(--border-strong)}button:focus-visible{outline:2px solid var(--lake-400);outline-offset:2px}.chip{border:1px solid var(--border);background:var(--bg-elev);color:var(--text-muted);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:999px;align-items:center;gap:6px;padding:5px 10px;font-size:12px;display:inline-flex}.chip:hover{border-color:var(--border-strong);color:var(--text)}.chip[aria-pressed=true]{background:var(--lake-500);color:#fff;border-color:var(--lake-500)}.dark .chip[aria-pressed=true]{background:var(--lake-400);border-color:var(--lake-400);color:#062029}.chip.dry[aria-pressed=true]{background:var(--dry-500);border-color:var(--dry-500);color:#fff}.badge{background:var(--bg-sunken);color:var(--text-muted);border:1px solid var(--border);letter-spacing:.01em;border-radius:999px;align-items:center;gap:6px;padding:3px 8px;font-size:11px;font-weight:500;display:inline-flex}.badge.provisional{color:var(--dry-700);background:#d97a1f1f;border-color:#d97a1f59}.dark .badge.provisional{color:var(--dry-300);background:#f1b25a1f;border-color:#f1b25a66}.badge.proxy{color:var(--lake-600);background:#1f7a891a;border-color:#1f7a894d}.dark .badge.proxy{color:var(--lake-200);background:#8ccdd51f;border-color:#8fcdd54d}.app{max-width:1280px;margin:0 auto;padding:24px clamp(16px,3vw,32px) 80px}.header{border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:24px;padding-bottom:20px;display:flex}.header h1{letter-spacing:-.01em;margin:0 0 4px;font-size:clamp(20px,2.4vw,26px);font-weight:600}.header p.lede{max-width:56ch;color:var(--text-muted);margin:0;font-size:14px}.header .actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.logo{color:var(--text);letter-spacing:.02em;text-transform:uppercase;align-items:center;gap:10px;margin-bottom:12px;font-size:14px;font-weight:600;display:inline-flex}.logo .mark{background:linear-gradient(155deg, var(--lake-700), var(--lake-400));border-radius:8px;justify-content:center;align-items:center;width:28px;height:28px;display:inline-flex}.grid{gap:18px;display:grid}.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}@media (width<=920px){.grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr}}.card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:18px 20px}.card.tight{padding:14px 16px}.card h2{letter-spacing:-.005em;margin:0 0 4px;font-size:15px;font-weight:600}.card .subtitle{color:var(--text-muted);margin:0 0 14px;font-size:12.5px}.kpi .value{font-family:var(--font-mono);letter-spacing:-.01em;color:var(--text);font-size:clamp(20px,3vw,26px);font-weight:600}.kpi .label{color:var(--text-subtle);text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px;font-size:11.5px}.kpi .delta{color:var(--text-muted);margin-top:4px;font-size:12px}.kpi .delta.neg{color:var(--dry-500)}.kpi .delta.pos{color:var(--th-weir)}.controls{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.range-row{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.range-row .range-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;font-size:12px}.range-row input[type=range]{min-width:200px;accent-color:var(--lake-500);flex:1}.range-row .range-vals{font-family:var(--font-mono);color:var(--text);text-align:right;min-width:110px;font-size:13px}.tooltip{background:var(--bg-elev);border:1px solid var(--border-strong);border-radius:var(--radius-sm);box-shadow:var(--shadow-md);min-width:160px;padding:10px 12px;font-size:12.5px;line-height:1.45}.tooltip .t-date{color:var(--text);margin-bottom:4px;font-weight:600}.tooltip .t-row{color:var(--text-muted);justify-content:space-between;gap:14px;display:flex}.tooltip .t-row b{font-family:var(--font-mono);color:var(--text);font-weight:600}.tooltip .t-note{color:var(--text-subtle);margin-top:6px;font-size:11.5px}.legend{color:var(--text-muted);flex-wrap:wrap;gap:12px 18px;margin-top:4px;font-size:12px;display:flex}.legend .swatch{vertical-align:middle;border-radius:2px;width:14px;height:4px;margin-right:6px;display:inline-block}.legend .swatch.dot{border-radius:50%;width:8px;height:8px}.legend .swatch.dash{background:0 0;border-top:2px dashed;width:18px;height:0}.drawer-backdrop{z-index:40;background:#06101873;animation:.16s fade;position:fixed;inset:0}.drawer{background:var(--bg-elev);border-left:1px solid var(--border);width:min(440px,92vw);box-shadow:var(--shadow-md);z-index:50;padding:22px 24px;animation:.22s cubic-bezier(.22,1,.36,1) slidein;position:fixed;top:0;bottom:0;right:0;overflow-y:auto}.drawer h2{margin:0 0 4px;font-size:16px}.drawer h3{color:var(--text);text-transform:uppercase;letter-spacing:.06em;margin:18px 0 6px;font-size:13px}.drawer .close{position:absolute;top:14px;right:14px}.drawer ul{margin:6px 0 0;padding:0;list-style:none}.drawer ul li{border-bottom:1px dashed var(--border);padding:6px 0;font-size:13px}.drawer ul li:last-child{border-bottom:0}.drawer p{color:var(--text-muted);margin:4px 0 0;font-size:13px}@keyframes fade{0%{opacity:0}to{opacity:1}}@keyframes slidein{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.section-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:8px;margin:30px 0 14px;display:flex}.section-head h2{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin:0;font-size:14px;font-weight:600}.section-head .meta{color:var(--text-subtle);font-size:12px}.event-list{gap:10px;display:grid}.event-row{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-elev);grid-template-columns:60px 1fr;gap:12px;padding:10px 12px;display:grid}.event-row .year{font-family:var(--font-mono);color:var(--lake-500);font-size:13px;font-weight:600}.event-row .label{margin-bottom:2px;font-size:13.5px;font-weight:600}.event-row .detail{color:var(--text-muted);font-size:12.5px}.event-row.context{border-left:3px solid var(--dry-500)}footer.foot{border-top:1px solid var(--border);color:var(--text-subtle);flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:36px;padding-top:16px;font-size:12px;display:flex}.scrollx{overflow-x:auto}.muted{color:var(--text-muted)}.subtle{color:var(--text-subtle)}.mono{font-family:var(--font-mono)}