/* Burn Calendar. Layout: a calm, content-first dashboard. Summary before detail,
   one ember accent, charts that share a single colour system. */
:root{
  --bg:#f3f4f7; --surface:#ffffff; --surface2:#eef0f4; --ink:#151a21; --mut:#586271; --line:#dde1e8;
  --ember:#c2410c; --ember-soft:#fdeadd; --on-ember:#ffffff; --blue:#2563eb;
  --good:#17724a; --warn:#a15a07; --focus:#2563eb;
  --shadow:0 1px 2px rgba(16,24,40,.05),0 6px 20px rgba(16,24,40,.05);
  --r:14px; --gut:max(16px,env(safe-area-inset-left,0px));
  --font:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --display:"Space Grotesk","Inter",system-ui,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0d1116; --surface:#161b22; --surface2:#1d242d; --ink:#e8ecf2; --mut:#98a3b3; --line:#29313c;
    --ember:#ff8a4c; --ember-soft:#2c1a12; --on-ember:#1b0e06; --blue:#6ea0ff;
    --good:#4cc38a; --warn:#f2b45a; --focus:#7aa8ff;
    --shadow:0 1px 2px rgba(0,0,0,.35),0 8px 24px rgba(0,0,0,.28);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0d1116; --surface:#161b22; --surface2:#1d242d; --ink:#e8ecf2; --mut:#98a3b3; --line:#29313c;
  --ember:#ff8a4c; --ember-soft:#2c1a12; --on-ember:#1b0e06; --blue:#6ea0ff;
  --good:#4cc38a; --warn:#f2b45a; --focus:#7aa8ff;
  --shadow:0 1px 2px rgba(0,0,0,.35),0 8px 24px rgba(0,0,0,.28);
  color-scheme:dark;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 var(--font);-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--display);line-height:1.2;margin:0;text-wrap:balance}
p{margin:0}
a{color:var(--ember);text-underline-offset:3px}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px}
.wrap{max-width:1240px;margin:0 auto;padding-left:var(--gut);padding-right:max(16px,env(safe-area-inset-right,0px))}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--surface);padding:8px 12px;border-radius:8px;z-index:200}
.skip:focus{left:8px}
[hidden]{display:none!important}

/* top bar */
.top{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;justify-content:space-between;height:56px}
.brand{display:flex;align-items:center;gap:9px;color:var(--ink);text-decoration:none;font:700 17px var(--display)}
.brand svg{color:var(--ember)}
.top-nav{display:flex;align-items:center;gap:6px}
.top-nav a{color:var(--mut);text-decoration:none;padding:8px 10px;border-radius:8px;font-weight:500;font-size:14px}
.top-nav a:hover{color:var(--ink);background:var(--surface2)}
.icon-btn{display:grid;place-items:center;width:36px;height:36px;border-radius:9px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.icon-btn:hover{background:var(--surface2)}
:root .i-sun{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .i-sun{display:block}:root:not([data-theme="light"]) .i-moon{display:none}}
:root[data-theme="dark"] .i-sun{display:block}:root[data-theme="dark"] .i-moon{display:none}
:root[data-theme="light"] .i-sun{display:none}:root[data-theme="light"] .i-moon{display:block}
.progress{position:fixed;left:0;top:0;height:3px;width:100%;z-index:100;background:linear-gradient(90deg,transparent,var(--ember),transparent);background-size:40% 100%;background-repeat:no-repeat;animation:slide 1.1s linear infinite}
@keyframes slide{from{background-position:-40% 0}to{background-position:140% 0}}

/* hero */
.hero{padding:34px 0 8px}
.hero h1{font-size:clamp(26px,4.2vw,40px);letter-spacing:-.02em;max-width:22ch}
.hero p{margin-top:12px;max-width:62ch;color:var(--mut);font-size:16px}
.banner{margin:12px 0 0;padding:9px 12px;border-radius:10px;background:var(--ember-soft);color:var(--ember);font-weight:600;font-size:13px}

/* region picker */
.regions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:22px 0 18px}
.region{all:unset;box-sizing:border-box;cursor:pointer;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--surface);display:flex;flex-direction:column;gap:2px;min-width:0}
.region:hover{border-color:color-mix(in srgb,var(--ember) 45%,var(--line))}
.region:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.region b{font:600 15px var(--display)}
.region span{color:var(--mut);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.region[aria-pressed="true"]{border-color:var(--ember);box-shadow:0 0 0 1px var(--ember) inset;background:var(--ember-soft)}
.region[aria-pressed="true"] b{color:var(--ember)}

/* layout */
.layout{display:grid;grid-template-columns:minmax(300px,390px) minmax(0,1fr);gap:20px;align-items:start;padding-bottom:40px}
.side,.content{display:flex;flex-direction:column;gap:20px;min-width:0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px;box-shadow:var(--shadow)}
.card-h{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.card-h.wrap-h{flex-wrap:wrap}
.card h2{font-size:17px}
.help{color:var(--mut);font-size:13.5px;margin:-2px 0 10px;max-width:70ch}
.hint{color:var(--mut);font-size:12.5px;margin-top:8px}
.pill{font-size:12.5px;font-weight:600;color:var(--mut);background:var(--surface2);border:1px solid var(--line);border-radius:999px;padding:3px 10px;white-space:nowrap}
.pill.on{color:var(--ember);background:var(--ember-soft);border-color:transparent}

/* map */
#map{height:330px;border-radius:10px;border:1px solid var(--line);background:var(--surface2);overflow:hidden}
#map.drawing{cursor:crosshair}#map.drawing .leaflet-grab{cursor:crosshair}
:root[data-theme="dark"] .leaflet-tile-pane{filter:invert(1) hue-rotate(180deg) brightness(.92) contrast(.9) saturate(.8)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .leaflet-tile-pane{filter:invert(1) hue-rotate(180deg) brightness(.92) contrast(.9) saturate(.8)}}
.leaflet-container{font-family:var(--font)}
.row-actions{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.btn{font:600 14px var(--font);color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:9px 14px;cursor:pointer;min-height:40px}
.btn:hover{background:var(--surface2)}
.btn.primary{background:var(--ember);border-color:var(--ember);color:var(--on-ember)}
.btn.primary:hover{filter:brightness(1.06)}
.status{margin-top:10px;font-size:13.5px;color:var(--mut);min-height:21px}
.status.warn{color:var(--warn);font-weight:600}
.presets{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.chip{font:500 13px var(--font);color:var(--ink);background:var(--surface2);border:1px solid var(--line);border-radius:999px;padding:6px 12px;cursor:pointer;min-height:32px}
.chip:hover{border-color:var(--ember)}
.chip[aria-pressed="true"]{background:var(--ember-soft);color:var(--ember);border-color:transparent;font-weight:600}

/* trust card */
.lead{color:var(--mut);font-size:13.5px;margin-bottom:12px}
.bars{display:grid;gap:10px}
.bar{display:grid;grid-template-columns:84px 1fr 44px;align-items:center;gap:10px;font-size:13.5px}
.bar em{font-style:normal;font-weight:700;text-align:right;font-variant-numeric:tabular-nums}
.track{position:relative;height:12px;border-radius:99px;background:var(--surface2);overflow:visible}
.track i{display:block;height:100%;border-radius:99px;background:var(--mut);opacity:.55}
.bar.good .track i{background:var(--ember);opacity:1}
.track b{position:absolute;top:-4px;bottom:-4px;width:2px;background:var(--ink);opacity:.6;border-radius:2px}
.cap{color:var(--mut);font-size:12.5px;margin-top:8px}
.kv{display:grid;grid-template-columns:1fr auto;gap:4px 12px;margin:14px 0 0;padding-top:12px;border-top:1px solid var(--line);font-size:13.5px}
.kv dt{color:var(--mut)}.kv dd{margin:0;font-weight:600;text-align:right;font-variant-numeric:tabular-nums}
.note{margin-top:12px;padding:10px 12px;border-radius:10px;background:var(--surface2);font-size:13px;color:var(--ink)}
.note.warn{background:var(--ember-soft)}
details{margin-top:12px;font-size:13.5px;color:var(--mut)}
summary{cursor:pointer;font-weight:600;color:var(--ink)}
details p{margin-top:8px}

/* insights */
.tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.tile{padding:12px;border:1px solid var(--line);border-radius:12px;background:var(--surface2);min-width:0}
.tile small{display:block;color:var(--mut);font-size:12px;font-weight:500;margin-bottom:3px}
.tile b{display:block;font:700 19px/1.2 var(--display);font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.tile span{display:block;color:var(--mut);font-size:12px;margin-top:3px}
.unusual{margin-top:14px}
.unusual h3{font-size:13.5px;margin-bottom:8px;font-family:var(--font);font-weight:600}
.unusual .chips{display:flex;flex-wrap:wrap;gap:6px}
.empty{padding:14px;border-radius:12px;background:var(--surface2);color:var(--mut)}

/* calendar + charts */
.seg{display:inline-flex;background:var(--surface2);border:1px solid var(--line);border-radius:10px;padding:3px;gap:2px}
.seg button{font:600 13px var(--font);color:var(--mut);background:none;border:0;border-radius:7px;padding:7px 12px;cursor:pointer;min-height:34px}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.15)}
.scale{display:flex;align-items:center;gap:10px;margin:2px 0 10px;font-size:12px;color:var(--mut)}
.scale .ramp{flex:0 1 220px;height:10px;border-radius:99px;border:1px solid var(--line)}
.cv{position:relative;width:100%;border-radius:10px;outline-offset:3px;touch-action:pan-y}
.cv canvas{display:block;border-radius:10px}
.cv .base{background:var(--surface)}
.cv .ov{position:absolute;inset:0;pointer-events:none}
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;align-items:center;color:var(--mut);font-size:13px;margin-bottom:8px}
.k{display:inline-block;width:20px;margin-right:6px;vertical-align:middle;border-top:2px solid}
.k.raw{border-top:2px dashed var(--mut)}.k.harm{border-top-color:var(--ember)}
.k.band{height:10px;border:0;background:color-mix(in srgb,var(--blue) 22%,transparent);border-radius:2px}
.legend span+span{margin-left:0}

/* tooltip */
.tip{position:fixed;z-index:300;pointer-events:none;max-width:260px;background:var(--ink);color:var(--bg);border-radius:10px;padding:9px 11px;font-size:12.5px;line-height:1.45;box-shadow:0 8px 24px rgba(0,0,0,.3)}
.tip b{display:block;font-size:13px;margin-bottom:2px}

/* how it works */
.how{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:34px 0}
.how h2{font-size:24px;margin-bottom:18px}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;counter-reset:s}
.steps li{padding:14px;border:1px solid var(--line);border-radius:12px;background:var(--bg)}
.steps h3{font-size:15px;margin-bottom:6px}.steps p{color:var(--mut);font-size:13.5px}
.limits{margin-top:20px;max-width:70ch}.limits h3{font-size:15px;margin-bottom:6px}
.limits ul{margin:0;padding-left:20px;color:var(--mut)}.limits li{margin:3px 0}
.foot{padding:22px 0 34px;color:var(--mut);font-size:13px}.foot p+p{margin-top:6px}

/* responsive */
@media (max-width:1000px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .side{display:contents}
  .map-card{order:1}.content{order:2}#trust{order:3}
  .tiles{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:560px){
  .regions{grid-template-columns:minmax(0,1fr)}
  .region span{white-space:normal}
  .top-nav a[href="#how"]{display:none}
  .steps{grid-template-columns:minmax(0,1fr)}
  #map{height:300px}
  .bar{grid-template-columns:76px 1fr 40px}
  .hero{padding-top:24px}
}