:root{--bg:#0e1116;--panel:#10141be0;--text:#e6e9ef;--muted:#9aa3b2;--accent:#4fb3ff;--line:#ffffff1f}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;color:var(--text);margin:0;font:13px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overflow:hidden}#app{background:linear-gradient(#5f8fc4 0%,#9fbad6 45%,#c9d6e3 70% 100%);position:fixed;inset:0}#app canvas,#app .labels{position:absolute;inset:0}.label{color:#fff;letter-spacing:.02em;text-shadow:0 0 3px #000000e6,0 0 1px #000;white-space:nowrap;pointer-events:none;font-size:11px}.label-water{color:#cfeeff;font-style:italic}.label-region{color:#ffe9c4;text-transform:uppercase;letter-spacing:.12em;font-size:10px}.label-range{color:#f3f3f3;font-style:italic}.label-point:before,.label-city:before{content:"● ";vertical-align:middle;font-size:8px}.label-point{color:#ffd37a}#panel{z-index:5;background:var(--panel);border:1px solid var(--line);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-radius:10px;width:324px;max-height:calc(100% - 24px);padding:14px 12px;position:fixed;top:12px;left:12px;overflow-y:auto}#panel section{border-top:1px solid var(--line);padding:10px 0}h1{margin:0;font-size:18px;font-weight:600}.sub{color:var(--muted);margin:2px 0 8px}.readout .age{font-variant-numeric:tabular-nums;font-size:34px;font-weight:600}.readout .age small{color:var(--muted);font-size:14px}.readout .event{color:var(--accent);min-height:1.4em}.readout dl{grid-template-columns:1fr auto;gap:2px 8px;margin:8px 0 0;display:grid}.readout dt{color:var(--muted)}.readout dd{text-align:right;font-variant-numeric:tabular-nums;margin:0}#hydrograph{cursor:pointer;width:100%;height:120px;display:block}input[type=range]{width:100%;accent-color:var(--accent)}.row{justify-content:space-between;align-items:center;gap:8px;margin-top:6px;display:flex}button,select{color:var(--text);border:1px solid var(--line);font:inherit;background:#1d2430;border-radius:6px;padding:5px 10px}button:hover{border-color:var(--accent)}.controls label{margin:4px 0;display:block}.controls label.check{color:var(--muted);align-items:flex-start;gap:6px;display:flex}.controls label.check input{margin-top:2px}.legend .ramp{background:linear-gradient(90deg,#0d0887,#6a00a8,#b12a90,#e16462,#fca636,#f0f921);border-radius:3px;height:10px}.ramp-labels{color:var(--muted);justify-content:space-between;margin-top:3px;font-size:11px;display:flex}footer{border-top:1px solid var(--line);color:var(--muted);padding-top:10px;font-size:11px}footer a{color:var(--accent)}#tooltip{pointer-events:none;border:1px solid var(--line);white-space:pre;z-index:10;background:#000000d1;border-radius:6px;padding:6px 8px;font-size:12px;position:fixed}#loading{color:var(--muted);pointer-events:none;place-items:center;font-size:15px;display:grid;position:fixed;inset:0}@media (width<=640px){#panel{width:auto;max-height:45%;right:12px}}