.river-map-page .world-banner{display:none}.river-map-page main{max-width:1440px;margin:auto;padding:0 clamp(1rem,4vw,3.5rem) 3rem}.river-map-page .breadcrumbs{padding:1.5rem 0;margin:0}.map-heading{display:flex;align-items:center;justify-content:space-between;gap:2rem;margin:1rem 0 2rem}.map-heading h1{font-size:clamp(2.6rem,5vw,4.5rem);margin:.2em 0;line-height:1.1}.map-heading p{max-width:65ch;line-height:1.65}.map-text-link{white-space:nowrap;color:#7ae0dc}.river-filters{display:grid;grid-template-columns:1.3fr 1fr 1fr auto;gap:1rem;align-items:end;padding:1.25rem;background:#102529;border:1px solid #426466}.river-filters label{display:grid;gap:.5rem;font-size:1rem;color:#edf3ee}.river-filters input,.river-filters select,.river-filters button,.river-card button{font:inherit;font-size:1rem;min-height:46px;border:1px solid #597477;border-radius:3px;padding:.7rem;background:#071114;color:#fff;width:100%}.river-filters button,.river-card button{background:#a6e8de;color:#09262a;font-weight:700;cursor:pointer}.river-status{font-size:.9rem;line-height:1.5;color:#c0d7d5;margin:1rem 0}.river-workspace{display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,1fr);gap:1.25rem;align-items:start}.map-column{min-width:0}#london-river-map{height:560px;width:100%;background:#dbe5e3;border:1px solid #597477;z-index:0}.river-map-page .leaflet-container{font:14px/1.4 Arial,sans-serif}.river-map-page .leaflet-control-attribution{color:#172d32;background:#fff;font-size:12px;max-width:95%}.river-map-page .leaflet-control-attribution a{color:#075c76}.river-map-page .leaflet-bar a{color:#172d32;background:#fff}.river-map-page .leaflet-tooltip{background:#fff;color:#10262b;border-color:#345b5c;font-size:14px}.river-file{background:#112a2d;padding:1.5rem;border:1px solid #52777a;min-width:0}.river-file h2{font-size:2rem;line-height:1.2;margin:.5em 0}.river-file h3{font-size:1.15rem;margin:1.5rem 0 .5rem}.river-file p,.river-card p{font-size:1rem;line-height:1.65}.river-file a,.river-card a,.map-method a{color:#9cece4;text-underline-offset:.2em}.river-file details{border-top:1px solid #52777a;margin-top:1rem;padding-top:1rem}.river-file summary{cursor:pointer;font-weight:700;line-height:1.6}.river-legend{display:flex;flex-wrap:wrap;gap:.8rem 1.5rem;margin:1rem 0;font-size:.875rem;line-height:1.5}.river-legend span{display:flex;align-items:center;gap:.5rem}.river-legend i{width:30px;border-top:4px solid #43bdb5;display:inline-block;flex-shrink:0}.river-legend .line-buried{border-top-style:dashed}.river-legend .line-historical{border-color:#e09adf;border-top-style:dotted}.river-legend .line-selected{border-color:#f5cc67}.map-caution{border-left:3px solid #f5cc67;padding-left:1rem;color:#dae4df;font-size:.9rem;line-height:1.65}.river-directory{padding:3rem 0}.directory-heading p{max-width:75ch;line-height:1.6}.river-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.river-card{padding:1.25rem;background:#112529;border:1px solid #3d5e60;display:flex;flex-direction:column;align-items:start}.river-card h3{font-size:1.4rem;margin:.6em 0}.river-card .river-tag,.river-file .river-tag{font-size:.875rem;color:#bce0d8}.river-card button{margin-top:auto}.river-card[aria-current=true]{border-color:#f5cc67}.river-card p{margin:.5em 0 1em}.river-map-page :focus-visible{outline:3px solid #f5cc67;outline-offset:4px}.map-method{border-top:1px solid #52777a;padding-top:2rem;max-width:95ch}.map-method p{font-size:1rem;line-height:1.7}.river-map-page [hidden]{display:none!important}@media(max-width:1000px){.river-filters{grid-template-columns:1fr 1fr}.river-workspace{grid-template-columns:1fr}.river-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.river-file{min-height:0}#london-river-map{height:440px}}@media(max-width:600px){.map-heading{display:block}.map-heading h1{font-size:2.8rem}.river-filters{grid-template-columns:1fr}.river-cards{grid-template-columns:1fr}#london-river-map{height:380px}.river-map-page main{padding-left:1rem;padding-right:1rem}.river-file{padding:1.1rem}}
.river-filters.reading-controls{grid-template-columns:1fr 1fr;margin-top:1rem}.river-filters select:disabled{opacity:.65;cursor:not-allowed}#family-guide ul{padding-left:1.2rem;line-height:1.8}#family-guide li{margin-bottom:.7rem}@media(max-width:600px){.river-filters.reading-controls{grid-template-columns:1fr}}