@font-face{font-family:"Barlow Condensed Local";src:url("/uk-water/assets/BarlowCondensed.6553a31e71bb.woff2") format("woff2");font-weight:400 900;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans Local";src:url("/uk-water/assets/IBMPlexSans-400-latin-ext.ae1d854fefa1.woff2") format("woff2");font-weight:400 700;font-style:normal;font-display:swap;unicode-range:U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF}
@font-face{font-family:"IBM Plex Sans Local";src:url("/uk-water/assets/IBMPlexSans-400-latin.056e4e2459f5.woff2") format("woff2");font-weight:400 700;font-style:normal;font-display:swap;unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:"Source Serif 4 Local";src:url("/uk-water/assets/SourceSerif4-400-latin-ext.231f594ad829.woff2") format("woff2");font-weight:400 700;font-style:normal;font-display:swap;unicode-range:U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF}
@font-face{font-family:"Source Serif 4 Local";src:url("/uk-water/assets/SourceSerif4-400-latin.8e38e3fbd74d.woff2") format("woff2");font-weight:400 700;font-style:normal;font-display:swap;unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}

:root{
  --bg:#f3f1ea;--bg-alt:#e6e9e4;--text:#0d1b24;--muted:#33454f;--line:rgba(13,27,36,.24);--line-soft:rgba(13,27,36,.13);
  --accent:#0b4f72;--accent-ink:#ffffff;--wet:#104d7f;--dry:#6f3f06;--hot:#8a2711;--dot:#46606e;--panel:#e9ece6;
  --sans:"IBM Plex Sans Local","Helvetica Neue",Arial,sans-serif;--serif:"Source Serif 4 Local",Georgia,serif;--display:"Barlow Condensed Local",Impact,sans-serif;
  --bar:48px;color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#0d1b24;--bg-alt:#12242f;--text:#eef3f3;--muted:#b9c9d0;--line:rgba(238,243,243,.28);--line-soft:rgba(238,243,243,.15);
  --accent:#86cdea;--accent-ink:#0d1b24;--wet:#7cc2f0;--dry:#f0b560;--hot:#ff8f71;--dot:#9bb4c0;--panel:#0a151c;color-scheme:dark;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0d1b24;--bg-alt:#12242f;--text:#eef3f3;--muted:#b9c9d0;--line:rgba(238,243,243,.28);--line-soft:rgba(238,243,243,.15);
  --accent:#86cdea;--accent-ink:#0d1b24;--wet:#7cc2f0;--dry:#f0b560;--hot:#ff8f71;--dot:#9bb4c0;--panel:#0a151c;color-scheme:dark;}}

*{box-sizing:border-box}
html{background:var(--bg);color:var(--text);scroll-behavior:smooth;scroll-padding-top:calc(var(--bar) + 12px)}
body{margin:0;min-width:320px;overflow-x:hidden;background:var(--bg);font:17px/1.6 var(--sans);text-rendering:optimizeLegibility}
a{color:inherit}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--accent-ink);padding:8px 12px;z-index:100}
.skip:focus{left:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.02;margin:0;letter-spacing:.005em}
p{margin:0 0 1em}

.topbar{position:sticky;top:0;z-index:50;height:var(--bar);display:flex;align-items:center;gap:14px;padding:0 max(16px,env(safe-area-inset-left));background:color-mix(in srgb,var(--bg) 94%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line-soft);font-size:14px}
.home{font-weight:600;text-decoration:none;letter-spacing:.01em}
.topnav{display:flex;gap:16px;overflow-x:auto;scrollbar-width:none;min-width:0}
.topnav::-webkit-scrollbar{display:none}
.topnav a{text-decoration:none;color:var(--muted);padding:4px 0;border-bottom:2px solid transparent;white-space:nowrap}
.topnav a:hover{color:var(--text)}
.topnav a[aria-current="true"]{color:var(--text);border-bottom-color:var(--accent)}
.spacer{flex:1}
.chip{border:1px solid var(--line);border-radius:99px;padding:3px 11px;text-decoration:none;font-size:13px}
.chip:hover{border-color:var(--accent)}
.icon-btn{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:transparent;display:grid;place-items:center;cursor:pointer}
.icon-btn:hover{border-color:var(--accent)}
.icon-btn svg{display:block}
.icon-btn svg[hidden]{display:none}
.progress{position:fixed;left:0;right:0;top:var(--bar);height:2px;z-index:49;pointer-events:none}
.progress span{display:block;height:100%;width:100%;background:var(--accent);transform:scaleX(0);transform-origin:0 50%}

.hero{max-width:1180px;margin:0 auto;padding:clamp(28px,5vw,64px) 20px clamp(28px,4vw,48px)}
.kicker{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:18px}
h1{font-size:clamp(2.2rem,5.2vw,4.4rem);text-wrap:balance;max-width:24ch}
.deck{font:clamp(1.1rem,2vw,1.4rem)/1.5 var(--serif);max-width:46rem;margin:20px 0 26px}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);margin-bottom:26px}
.stat{padding:18px 22px 14px 0;border-right:1px solid var(--line-soft);margin-right:22px}
.stat:last-child{border-right:0;margin-right:0}
.stat-v{font:700 clamp(2.6rem,6vw,4.4rem)/1 var(--display);margin:0 0 8px;color:var(--accent)}
.stat:nth-child(2) .stat-v{color:var(--dry)}
.stat:nth-child(3) .stat-v{color:var(--hot)}
.stat-l{font-size:15px;color:var(--muted);margin:0;line-height:1.45}
.verdict{font:clamp(1.05rem,1.7vw,1.25rem)/1.5 var(--serif);max-width:46rem;border-left:3px solid var(--accent);padding-left:16px;margin:0}

.story{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:clamp(20px,4vw,64px);max-width:1280px;margin:0 auto;padding:0 20px;align-items:start}
.story-fig{position:sticky;top:calc(var(--bar) + 10px);height:calc(100svh - var(--bar) - 20px);display:flex;align-items:center;z-index:2}
.panel{margin:0;width:100%;background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:12px 12px 10px;max-height:100%;display:flex;flex-direction:column;min-height:0}
.scatter{width:100%;height:auto;min-height:0;flex:1 1 auto;display:block;touch-action:pan-y}
.scatter .gl,.months .gl,.cis .gl{stroke:var(--line-soft)}
.scatter .ax,.months .ax,.cis .ax{font:11px var(--sans);fill:var(--muted)}
.scatter .ax-t,.months .ax-t,.cis .ax-t{font:12px var(--sans);fill:var(--muted)}
.scatter .avg{stroke:var(--muted);stroke-width:1;stroke-dasharray:4 4}
.scatter .avg-t{font:11px var(--sans);fill:var(--muted)}
.scatter .d{fill:var(--dot);fill-opacity:.62;stroke:none;transition:fill .25s,fill-opacity .25s}
.scatter .y26{fill:var(--hot);fill-opacity:1;stroke:var(--text);stroke-width:1.5}
.scatter .lab26{font:700 15px var(--sans);fill:var(--hot)}
.scatter .cur{fill:none;stroke:var(--text);stroke-width:2}
.scatter .fit{stroke:var(--accent);stroke-width:2.2}
.scatter .corner rect{fill:var(--hot);fill-opacity:.08;stroke:var(--hot);stroke-width:1.4;stroke-dasharray:5 4}
.scatter .corner-t{font:600 13px var(--sans);fill:var(--hot)}
.scatter [hidden]{display:none}
.scatter[data-focus="flat"] .d{fill-opacity:.28}
.scatter[data-focus="flat"] .d.t20{fill:var(--wet);fill-opacity:1}
.scatter[data-focus="flat"] .y26{fill:var(--hot);fill-opacity:1}
.scatter[data-focus="y26"] .d:not(.y26){fill-opacity:.3}
.panel-bar{display:flex;flex-direction:column;gap:8px;padding-top:8px;border-top:1px solid var(--line);margin-top:6px}
.readout{margin:0;font-size:14px;line-height:1.4;min-height:2.8em}
.scrub{display:flex;gap:12px;align-items:center}
.play,.reset{flex:none;border:1px solid var(--line);background:transparent;border-radius:99px;padding:8px 14px;font-size:14px;cursor:pointer;min-height:44px}
.play:hover,.reset:hover{border-color:var(--accent)}
.yr{flex:1;min-width:0;display:block}
.yr input{width:100%;accent-color:var(--accent);height:44px;margin:0}
.story-steps{padding:6svh 0 30svh}
.step{min-height:78svh;display:flex;flex-direction:column;justify-content:center;padding:4svh 0}
.step h2{font-size:clamp(1.9rem,3.4vw,2.9rem);margin-bottom:18px;text-wrap:balance}
.step p{font:1.12rem/1.65 var(--serif);max-width:34rem}
.note{font-size:14px;color:var(--muted);line-height:1.5}

.band{padding:clamp(48px,8vw,104px) 0}
.band.alt{background:var(--bg-alt)}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.band h2{font-size:clamp(2rem,4.4vw,3.6rem);margin-bottom:26px;max-width:24ch;text-wrap:balance}
.prose p{font:1.12rem/1.7 var(--serif);max-width:38rem}
.cols{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:clamp(24px,5vw,64px);align-items:start}
.chart{margin:0;overflow-x:auto}
.chart svg{width:100%;height:auto;display:block}
.panel-lite .scatter{max-height:none}
.panel-lite .readout{padding-top:8px}
.months .bar.up{fill:var(--wet)}
.months .bar.dn{fill:var(--dry)}
.months .avgtick{stroke:var(--text);stroke-width:2}
.months .val{font:11px var(--sans);fill:var(--muted);font-variant-numeric:tabular-nums}
.months .val-hi{font:700 13px var(--sans);fill:var(--hot)}
.months .sep{stroke:var(--line);stroke-dasharray:3 3}
.cis .cl{font:13px var(--sans);fill:var(--text)}
.cis .cn{font:12px var(--sans);fill:var(--muted);font-variant-numeric:tabular-nums}
.cis .cv{font:700 13px var(--sans);fill:var(--text)}
.cis .zero{stroke:var(--text);opacity:.7}
.cis .ci,.cis .cap{stroke-width:2.4}
.cis .is-w .ci,.cis .is-w .cap{stroke:var(--wet)}.cis .is-w .cd{fill:var(--wet)}
.cis .is-s .ci,.cis .is-s .cap{stroke:var(--dry)}.cis .is-s .cd{fill:var(--dry)}
.box{border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:4px;padding:18px 20px;background:var(--bg)}
.box h3{font-size:1.5rem;margin-bottom:10px}
.box ul{margin:0 0 10px;padding-left:1.1em}
.box li{margin-bottom:8px;font-size:16px;line-height:1.5}
.text-link{font-weight:600;color:var(--accent);text-decoration-thickness:2px;text-underline-offset:3px}
.method{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 48px;margin-bottom:30px}
.m-item h3{font-size:1.5rem;margin:18px 0 6px}
.m-item p{font-size:16px;line-height:1.6}
.sub{font-size:1.9rem;margin:30px 0 6px}
.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 40px}
.tablewrap{overflow-x:auto;margin:10px 0 8px;border-top:1px solid var(--line)}
table{border-collapse:collapse;width:100%;font-size:15px;font-variant-numeric:tabular-nums}
caption{text-align:left;font-weight:600;padding:10px 0 4px}
th,td{text-align:right;padding:8px 10px;border-bottom:1px solid var(--line-soft)}
th[scope="row"],thead th:first-child{text-align:left;font-weight:600}
thead th{font-size:13px;color:var(--muted);font-weight:600;vertical-align:bottom}
.sources{list-style:none;margin:20px 0 28px;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px}
.source{padding:16px 0;border-top:1px solid var(--line)}
.source h3{font-size:1.35rem;margin:2px 0 6px}
.source p{font-size:15px;color:var(--muted);margin:0 0 6px}
.source .source-org{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--text);font-weight:600}
.share-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.share-label{font-size:14px;color:var(--muted);margin-right:4px}
.share-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line-soft);background:transparent;display:grid;place-items:center;color:var(--text);cursor:pointer;text-decoration:none}
.share-btn:hover,.share-btn:focus-visible{border-color:var(--accent);color:var(--accent)}
.share-status{font-size:14px;color:var(--muted)}
.foot{padding:34px 20px 60px;text-align:center;color:var(--muted);font-size:14px}
.foot p{margin:0 0 6px}

@media (pointer:coarse){.share-btn{width:44px;height:44px}.topnav a{padding:10px 0}}
@media (max-width:900px){
  .stats{grid-template-columns:1fr}.stat{border-right:0;margin-right:0;padding:14px 0;border-bottom:1px solid var(--line-soft)}
  .story{display:block;padding:0}
  .story-fig{position:sticky;top:var(--bar);height:auto;padding:6px 8px 0;background:var(--bg);z-index:5}
  .panel{max-height:none;padding:8px 6px 6px}
  .scatter{max-height:32svh;width:100%}
  .readout{font-size:12.5px;line-height:1.35;min-height:2.7em}
  .play,.reset{min-height:40px;padding:6px 12px;font-size:13px}
  .yr input{height:40px}
  .story-steps{padding:2svh 20px 20svh}
  .step{min-height:64svh}
  .cols,.two,.method,.sources{grid-template-columns:1fr}
  .chart svg:not(.scatter){min-width:520px}
  .panel-lite .scatter{max-height:none}
}
@media (max-width:520px){.topnav a:nth-child(n+3){display:none}.home{font-size:13px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.scatter .d{transition:none}}
.nf{max-width:32rem;margin:20vh auto;padding:0 20px}.nf h1{font-size:3.4rem}