/* Shared styles for every tracker page. Page-specific sizes are set per page with CSS variables:
   --h / --hs     chart heights on screen (normal / short charts)
   --ph / --phs   chart heights when printing
   --pcols        number of cards per row when printing */
:root{color-scheme:only light;--bg:#fff;--fg:#1c1c1c;--mut:#555;--card:#fff;--line:#ddd;--acc:#d00000;
 box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
html{background:#fff}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
main{max-width:1000px;margin:0 auto;padding:20px 16px 40px}
h1{font-size:22px;margin:0 0 4px}
.sub{color:var(--mut);margin:0 0 16px;font-size:13px}
a{color:#1f5fa8}

/* navigation */
.nav{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 14px}
.nb{font:inherit;font-size:13px;line-height:1.5;padding:6px 12px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--fg);cursor:pointer;text-decoration:none;display:inline-block}
.nb:hover{border-color:var(--acc)}
.nb.off,.nb:disabled{background:#eee;color:#999;cursor:default;pointer-events:none}
.nb.cur{border-color:var(--acc);color:var(--acc);background:var(--card);cursor:default;pointer-events:none}

/* cards, boxes, charts */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(var(--cardw,170px),1fr));gap:10px;margin:16px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 12px}
.card .v{font-size:22px;font-weight:700}
.card .l{font-size:12px;color:var(--mut)}
.box{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:14px}
.box h2{font-size:15px;margin:0 0 8px}
.wrap{position:relative;height:var(--h,400px)}
.wrap.s{height:var(--hs,300px)}
#read{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:6px 16px}
#read li{margin:6px 0}
#err{color:var(--acc)}
.hide{display:none}

/* chart legends (drawn as HTML by site.js): a left-aligned grid, click to show/hide */
.lgd{display:grid;grid-template-columns:repeat(auto-fill,minmax(165px,1fr));gap:2px 14px;margin:0 0 6px;font-size:12px;color:var(--mut)}
.lgd button{all:unset;display:flex;align-items:center;gap:7px;cursor:pointer;line-height:1.35;padding:2px 0;min-width:0}
.lgd button:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.lgd .sw{flex:0 0 22px;height:0;border-top:3px solid #888}
.lgd .bx{flex:0 0 22px;height:11px;border-radius:2px}
.lgd .tx{overflow:hidden;text-overflow:ellipsis}
.lgd .off{opacity:.38;text-decoration:line-through}

/* small segmented button groups above a chart (e.g. region / baseline / window toggles) */
.seg{display:inline-flex;flex-wrap:wrap;gap:6px;margin:0 14px 8px 0;font-size:13px;align-items:center;color:var(--mut)}
.seg .nb{padding:3px 10px}
.seg .nb.on{border-color:var(--acc);color:var(--acc)}

/* back-to-top button */
#totop{position:fixed;right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));
 width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:var(--card);color:var(--fg);
 font:600 20px/1 system-ui,sans-serif;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.15);z-index:50;
 opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s,transform .2s,visibility .2s}
#totop.show{opacity:1;visibility:visible;transform:none}
#totop:hover{border-color:var(--acc);color:var(--acc)}

/* small screens */
@media (max-width:600px){
 main{padding:14px 10px 32px}
 h1{font-size:19px}
 .card .v{font-size:19px}
 .box{padding:10px 8px}
 .wrap{height:calc(var(--h,400px)*.85)}
 .wrap.s{height:calc(var(--hs,300px)*.85)}
 .lgd{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}
}

/* printing */
@media print{
 .nav,#err,.hint,.seg,#totop{display:none}
 *{print-color-adjust:exact;-webkit-print-color-adjust:exact}
 @page{margin:12mm}
 main{padding:0;max-width:none;zoom:.8}
 .cards{margin:8px 0;grid-template-columns:repeat(var(--pcols,5),1fr)}
 .wrap{height:var(--ph,330px)}
 .wrap.s{height:var(--phs,250px)}
 .box{margin-bottom:8px;break-inside:avoid}
 #read{padding:2px 14px}
 #read li{margin:2px 0}
 .wrap canvas{width:100%!important;height:100%!important}
}