/* Grid ring builder. Mobile first: base rules are the phone layout, 421 and 701 widen the number grids, 900 restores the legacy desktop sidebar. */
:root{--ink:#17202A;--paper:#F5F7F4;--panel:#FFFFFF;--line:#D8DDD9;--muted:#5F6970;--v400:#5B3FBF;--v220:#2E6FB3;--prop:#E4531B;--prop2:#F08A5B;--tun:#7A3E12;--sea:#0F5C8C;--guard:#1D9E75;--load:#C98A0C;--warn:#B3261E}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{font-family:Archivo,system-ui,sans-serif;color:var(--ink);background:var(--paper);display:flex;flex-direction:column;font-size:14px;line-height:1.45;font-variant-numeric:tabular-nums;height:100vh;height:100dvh;overflow:hidden}
html.drawer-open body,html.wiz-open body{overflow:hidden}
/* iOS in-app browsers resolve a fixed inset against a layout viewport that can sit above the visible area, which
   pushed the wizard header and step rail off the top of the screen. An explicit dynamic height pins it. */
html.wiz-open,html.wiz-open body{height:100%;overscroll-behavior:none}
[hidden]{display:none!important}

/* Header: one row of burger, title and wizard button, then a compact figure row that scrolls sideways if it must. */
header{display:flex;flex-wrap:wrap;align-items:center;gap:4px 10px;padding:6px 12px 4px;border-bottom:1px solid var(--line);background:var(--panel);flex:none}
.burger{flex:none;width:44px;height:44px;margin-left:-8px;border:0;border-radius:4px;background:transparent;cursor:pointer;padding:0}
.burger::before{content:"";display:block;width:18px;height:2px;margin:0 auto;background:var(--ink);box-shadow:0 -6px 0 var(--ink),0 6px 0 var(--ink)}
h1{flex:1;min-width:0;font-size:16px;font-weight:600;font-stretch:112%;margin:0;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
h1 small{font-weight:400;font-stretch:100%;color:var(--muted);margin-left:8px;font-size:12.5px}
select#scenPick{flex:none;width:auto;max-width:40%;min-height:44px;font-size:13px;padding:0 8px}
.wiz-btn{flex:none;font:inherit;font-size:13px;padding:0 12px;min-height:44px;border:1px solid var(--ink);border-radius:4px;background:transparent;color:var(--ink);cursor:pointer;white-space:nowrap}
.hdr-stat{flex-basis:100%;display:flex;gap:16px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;padding:2px 0 4px}
.hdr-stat::-webkit-scrollbar{display:none}
.hdr-stat div{flex:none;display:grid;grid-template-columns:auto auto;align-items:baseline;column-gap:5px;font-size:11px;color:var(--muted);white-space:nowrap}
.hdr-stat b{grid-column:1/-1;font-size:15px;color:var(--ink);font-weight:600;font-stretch:108%;line-height:1.1}
.delta{order:1;font-size:11px;font-weight:500;color:var(--muted)}
.delta.up{color:var(--warn)}
.delta.down{color:var(--guard)}
.delta:empty{display:none}

/* Map */
main{flex:1;display:flex;min-height:0;position:relative}
.mapwrap{position:relative;flex:1;display:flex;min-width:0;min-height:0;isolation:isolate}
#map{flex:1;min-width:0;background:#E9ECE8}
.banner{position:absolute;z-index:800;left:54px;top:12px;background:var(--panel);border:1px solid var(--warn);border-left:4px solid var(--warn);padding:8px 12px;font-size:12.5px;max-width:min(340px,calc(100% - 66px));display:none;border-radius:3px}
.keymap{position:absolute;z-index:800;right:12px;bottom:28px;background:rgba(255,255,255,.92);padding:8px 10px;font-size:11.5px;border-radius:3px;line-height:1.5;color:var(--ink);max-width:calc(100% - 24px)}
.keymap i{display:inline-block;width:22px;height:0;border-top:3px solid;margin-right:6px;vertical-align:middle}
.keymap i.d{border-top-style:dashed}
.keymap i.o{border-top-style:dotted}
.keymap.collapsed{padding:0}
.keymap.collapsed>div{display:none}
.legend-toggle{display:block;width:100%;font:inherit;font-size:12px;font-weight:600;min-height:44px;padding:0 14px;border:0;background:transparent;color:var(--ink);cursor:pointer;text-align:left}
.keymap:not(.collapsed) .legend-toggle{margin:-8px -10px 4px;width:calc(100% + 20px);border-bottom:1px solid var(--line)}
.leaflet-tooltip.lbl{background:rgba(255,255,255,.88);border:0;box-shadow:none;font:600 11px/1.2 Archivo,system-ui,sans-serif;color:var(--ink);padding:2px 5px;border-radius:3px}
.leaflet-tooltip.lbl::before{display:none}
.leaflet-tooltip.lbl.prop{color:var(--prop)}
.leaflet-tooltip.lbl.sea{color:var(--sea)}
.leaflet-tooltip.lbl.v400{color:var(--v400)}
.leaflet-container{font-family:Archivo,system-ui,sans-serif}
.sq{background:var(--ink);border:2px solid #fff;box-shadow:0 0 0 1px var(--ink)}

/* Drawer: fixed sheet from the right on phones, static sidebar from 900 */
.backdrop{position:fixed;inset:0;z-index:1100;background:rgba(23,32,42,.45);opacity:0;visibility:hidden;transition:opacity .2s,visibility 0s .2s}
.backdrop.show{opacity:1;visibility:visible;transition:opacity .2s}
aside#drawer{position:fixed;top:0;right:0;bottom:0;height:100%;width:min(100vw,440px);z-index:1200;display:flex;flex-direction:column;background:var(--panel);border-left:1px solid var(--line);box-shadow:-8px 0 24px rgba(0,0,0,.12);transform:translateX(100%);visibility:hidden;transition:transform .2s ease,visibility 0s .2s;outline:0}
aside#drawer.open{transform:none;visibility:visible;transition:transform .2s ease}
#drawerTitle{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;margin:0}
.drawer-close{flex:none;align-self:flex-end;width:44px;height:44px;margin:2px 4px 0 0;border:0;border-radius:4px;background:transparent;color:var(--ink);font:inherit;font-size:24px;line-height:1;cursor:pointer}
#panelRoot{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;padding:0 16px 48px}

/* Panel */
section{padding:16px 0;border-bottom:1px solid var(--line)}
section:last-of-type{border-bottom:0}
h2{font-size:13px;font-weight:600;margin:0 0 12px;font-stretch:108%}
h2 span{font-weight:400;color:var(--muted);margin-left:8px}
.figs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:6px;border-left:3px solid var(--prop);padding-left:12px}
.figs b{display:block;font-size:22px;font-weight:600;font-stretch:112%;line-height:1.1;letter-spacing:-.02em}
.figs span{font-size:12px;color:var(--muted)}
.figs .delta{display:block}
.sub{font-size:12.5px;color:var(--muted);margin:6px 0 0 15px}
.bar{display:flex;height:10px;border-radius:2px;overflow:hidden;background:var(--line);margin:12px 0 6px 15px}
.bar i{display:block;height:100%}
.legend{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:12px;color:var(--muted);margin-left:15px}
.legend i{display:inline-block;width:10px;height:10px;margin-right:5px;vertical-align:-1px;border-radius:1px}
.flags{margin:12px 0 0 15px;padding:0;list-style:none;font-size:13px}
.flags li{padding:4px 0 4px 14px;position:relative;line-height:1.35}
.flags li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--warn)}
.flags li.warn::before{background:var(--warn)}
.flags li.ok::before{background:var(--guard)}
.flags li.info::before{background:var(--muted)}
.row{display:grid;grid-template-columns:1fr;gap:4px 12px;align-items:center;margin-bottom:12px}
.row label{font-size:13px;color:var(--muted)}
.seg{display:flex;flex-wrap:wrap;gap:1px;border:1px solid var(--ink);border-radius:4px;overflow:hidden;background:var(--ink)}
.seg button{flex:1 1 auto;border:0;background:var(--panel);font:inherit;font-size:12.5px;padding:7px 8px;min-height:44px;cursor:pointer;color:var(--ink);white-space:nowrap}
.seg button.on{background:var(--ink);color:#fff}
.seg button:focus-visible,button.act:focus-visible,.burger:focus-visible,.wiz-btn:focus-visible,.drawer-close:focus-visible,.legend-toggle:focus-visible,.wiz-rail button:focus-visible,.wiz-skip:focus-visible{outline:2px solid var(--prop);outline-offset:-2px}
input[type=number],select,input.text{font:inherit;font-size:16px;padding:6px 8px;min-height:44px;border:1px solid var(--line);border-radius:4px;background:var(--paper);color:var(--ink);width:100%}
input[type=range]{width:100%;accent-color:var(--ink);margin:4px 0 0;min-height:44px}
.chk{display:flex;align-items:center;gap:8px;font-size:13px;min-height:44px}
.chk input{accent-color:var(--ink);margin:0;width:18px;height:18px;flex:none}
.grid{display:grid;grid-template-columns:1fr;gap:10px 12px}
.grp{grid-column:1/-1;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-top:6px}
.grp:first-child{margin-top:0}
.field{font-size:12px;color:var(--muted)}
.field input,.field select{margin-top:3px}
.feed{display:grid;grid-template-columns:1fr 1fr;gap:8px;align-items:end;margin-bottom:10px}
.feed .chk{grid-column:1/-1;padding-bottom:0}
button.act{font:inherit;font-size:13px;padding:8px 12px;min-height:44px;border:1px solid var(--ink);border-radius:4px;background:var(--ink);color:#fff;cursor:pointer}
button.act.alt{background:transparent;color:var(--ink)}
button.act.sm{font-size:12px;padding:4px 8px}
button.act:disabled{opacity:.5;cursor:default}
.btns{display:flex;flex-wrap:wrap;gap:8px}
.status{font-size:12px;color:var(--muted);margin-top:8px;min-height:16px}
.note{font-size:12px;color:var(--muted);margin:16px 0 0;line-height:1.5}

/* Programme view: energisation line, CSS Gantt, totals. Bars and axis ticks are placed with inline left and width percentages. */
#progView{margin-top:4px}
.prog-line{font-size:13px;margin:0 0 10px}
.slip{font-weight:600}
.slip.late{color:var(--warn)}
.slip.early{color:var(--guard)}
.slip.ontime{color:var(--muted)}
.gantt{margin:10px 0 6px;font-size:11.5px}
.g-axis{position:relative;height:18px;margin-left:38%;border-bottom:1px solid var(--line);color:var(--muted);font-size:10.5px;line-height:18px}
.g-axis>*{position:absolute;top:0;bottom:0;border-left:1px solid var(--line);padding-left:3px;white-space:nowrap}
.g-row{display:flex;align-items:center;min-height:22px;margin:2px 0}
.g-name{width:38%;flex:none;padding-right:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.g-track{flex:1;position:relative;height:14px;background:var(--paper);border-radius:2px}
.g-bar{position:absolute;top:0;bottom:0;min-width:2px;border-radius:2px;background:var(--v220);opacity:.55}
.g-bar.crit{background:var(--prop);opacity:1}
.g-row.crit .g-name{font-weight:600}
.totals{font-size:12.5px;color:var(--muted);margin-top:8px}

/* Store and compare */
.scen-list{list-style:none;margin:8px 0;padding:0;border:1px solid var(--line);border-radius:4px;max-height:240px;overflow:auto}
.scen-list:empty{display:none}
.scen-item{display:flex;flex-wrap:wrap;align-items:center;gap:4px 8px;padding:8px 10px;border-bottom:1px solid var(--line)}
.scen-item:last-child{border-bottom:0}
.scen-item .name{flex:1;min-width:0;font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.scen-item .meta{font-size:11.5px;color:var(--muted);white-space:nowrap}
.scen-actions{display:flex;flex-wrap:wrap;gap:6px;flex-basis:100%}
.drop{display:flex;flex-direction:column;align-items:center;gap:6px;border:1px dashed var(--line);border-radius:4px;padding:12px;margin-top:8px;text-align:center;font-size:12.5px;color:var(--muted);transition:border-color .15s,background .15s}
.drop.over{border-color:var(--prop);background:rgba(228,83,27,.06);color:var(--ink)}
.baseline-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:10px}
.baseline-row select{flex:1;min-width:140px;width:auto}
.baseline-row .chk{min-height:0}

/* Wizard: full screen overlay, hidden until .open */
.wiz{position:fixed;top:0;left:0;right:0;height:100vh;height:100dvh;z-index:1300;background:var(--panel);display:none;flex-direction:column;padding-bottom:env(safe-area-inset-bottom)}
.wiz.open{display:flex}
.wiz-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 16px;border-bottom:1px solid var(--line);flex:none;min-height:52px}
.wiz-head h2,.wiz-head b{font-size:16px;font-weight:600;font-stretch:108%;margin:0}
.wiz-head h2 span{font-size:12.5px}
.wiz-head p{flex:1;min-width:0;margin:0;font-size:12.5px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.wiz-skip{flex:none;font:inherit;font-size:13px;min-height:44px;padding:0 10px;border:0;border-radius:4px;background:transparent;color:var(--muted);cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.wiz-rail{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding:8px 16px;border-bottom:1px solid var(--line);flex:none}
.wiz-rail::-webkit-scrollbar{display:none}
.wiz-rail button{flex:none;font:inherit;font-size:12.5px;padding:0 12px;min-height:44px;border:1px solid var(--line);border-radius:999px;background:var(--paper);color:var(--muted);cursor:pointer;white-space:nowrap}
.wiz-rail button.done{color:var(--ink);border-color:var(--ink)}
.wiz-rail button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.wiz-body{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;padding:4px 16px 24px}
.wiz-body section:last-of-type{border-bottom:0}
.wiz-strip{display:flex;gap:18px;overflow-x:auto;scrollbar-width:none;padding:8px 16px;border-top:1px solid var(--line);background:var(--paper);flex:none}
.wiz-strip::-webkit-scrollbar{display:none}
.wiz-strip div{flex:none;font-size:11px;color:var(--muted);white-space:nowrap}
.wiz-strip b{display:block;font-size:16px;color:var(--ink);font-weight:600;font-stretch:108%;line-height:1.1}
.wiz-nav{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:10px 16px;border-top:1px solid var(--line);flex:none}
.wiz-nav button.act:last-child{margin-left:auto}
.wiz-review dl{display:grid;grid-template-columns:1fr auto;gap:8px 12px;margin:0;font-size:13px;align-items:baseline}
.wiz-review dt{color:var(--muted)}
.wiz-review dd{margin:0;text-align:right;display:flex;justify-content:flex-end;align-items:center;gap:8px;flex-wrap:wrap}

/* Wider phones and small tablets */
@media (min-width:421px){
 .grid{grid-template-columns:1fr 1fr}
 .row{grid-template-columns:118px 1fr;gap:8px 12px;margin-bottom:10px}
 .feed{grid-template-columns:1fr 74px 118px}
 .feed .chk{grid-column:auto;padding-bottom:7px}
 .figs b{font-size:24px}
}
@media (min-width:701px){
 .grid{grid-template-columns:1fr 1fr 1fr}
}

/* Desktop: legacy header, static 400 px sidebar, no burger, backdrop or close button */
@media (min-width:900px){
 body{overflow:visible}
 header{flex-wrap:nowrap;min-height:56px;gap:0 24px;padding:0 20px}
 .burger{display:none}
 h1{flex:0 1 auto;font-size:18px;overflow:visible;text-overflow:clip}
 h1 small{font-size:13px;margin-left:10px;white-space:normal}
 select#scenPick{min-height:32px;max-width:220px}
 .wiz-btn{min-height:32px}
 .hdr-stat{flex-basis:auto;margin-left:auto;gap:28px;overflow:visible;padding:0}
 .hdr-stat div{font-size:12px}
 .hdr-stat b{font-size:18px}
 .backdrop{display:none}
 aside#drawer{position:static;width:400px;height:auto;flex:none;display:block;overflow:auto;transform:none;visibility:visible;transition:none;box-shadow:none;padding:14px 20px 48px}
 .drawer-close{display:none}
 #panelRoot{overflow:visible;padding:0}
 .legend-toggle{display:none}
 .keymap.collapsed{padding:8px 10px}
 .keymap.collapsed>div{display:block}
 .figs b{font-size:26px}
 .seg button{min-height:0;padding:7px 4px}
 input[type=number],select,input.text{font-size:13px;min-height:0}
 input[type=range]{min-height:0}
 .chk{min-height:0}
 .chk input{width:auto;height:auto}
 button.act{min-height:0}
 .wiz.open{display:grid;grid-template-columns:220px 1fr;grid-template-rows:auto 1fr auto auto;grid-template-areas:"head head" "rail body" "rail strip" "rail nav"}
 .wiz-head{grid-area:head;padding:10px 24px}
 .wiz-rail{grid-area:rail;flex-direction:column;overflow:auto;border-bottom:0;border-right:1px solid var(--line);padding:16px}
 .wiz-rail button{white-space:normal;text-align:left;border-radius:4px}
 .wiz-body{grid-area:body;padding:8px 32px 32px}
 .wiz-body>*{max-width:760px}
 .wiz-strip{grid-area:strip;padding:10px 32px;gap:28px}
 .wiz-strip div{font-size:12px}
 .wiz-strip b{font-size:18px}
 .wiz-nav{grid-area:nav;padding:12px 32px}
}

@media (prefers-reduced-motion:reduce){
 .backdrop,aside#drawer,.drop,.wiz-rail button{transition:none}
}