/* ============================================================
   DESERT BLOOM
   Colour is semantic and strict:
     --condensate (cyan)  = water, always
     --ember      (amber) = energy, always
   Nothing else uses those two hues.
   ============================================================ */
:root{
  --night:#0B1720;
  --slab:#122430;
  --slab-2:#162B38;
  --haze:#1E3D4C;
  --condensate:#5CD6D0;
  --ember:#E8A33D;
  --alert:#E8615A;
  --bone:#E9EFF1;
  --dust:#7E97A3;

  --panel:rgba(18,36,48,.84);
  --r:3px;
  --pad:clamp(16px,3vw,30px);
  --maxw:1220px;
  --gname:208px;

  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:'IBM Plex Sans',system-ui,-apple-system,Segoe UI,sans-serif;
  --disp:'Archivo','IBM Plex Sans',system-ui,sans-serif;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--night);color:var(--bone);
  font-family:var(--sans);font-size:15px;line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(1100px 520px at 12% -8%, rgba(92,214,208,.10), transparent 62%),
    radial-gradient(900px 460px at 96% 4%, rgba(232,163,61,.06), transparent 60%);
}
.wrap{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}

/* ---------- utilities (kept so no element needs a style attribute) ---------- */
.spacer{flex:1}
.mt-s{margin-top:12px}
.mt-m{margin-top:16px}
.mt-l{margin-top:20px}
.mb-m{margin-bottom:16px}
.mb-0{margin-bottom:0}
.no-rule{border-bottom:0}
[hidden]{display:none !important}

/* ---------- typography ---------- */
.eyebrow{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.19em;
  text-transform:uppercase;color:var(--dust);
}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.water{color:var(--condensate)}
.power{color:var(--ember)}
code{font-family:var(--mono);color:var(--condensate);font-size:.92em}

/* ---------- vapour layer ---------- */
#vapor{position:fixed;inset:0;width:100vw;height:100vh;pointer-events:none;z-index:0}

/* ---------- header ---------- */
header{
  position:sticky;top:0;z-index:40;
  background:rgba(11,23,32,.90);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--haze);
}
.bar{display:flex;align-items:center;gap:16px;height:66px}
.brand{display:flex;align-items:center;gap:11px;margin-right:auto;min-width:0}
.mark{flex:none;display:block}
.wordmark{
  font-family:var(--disp);font-variation-settings:'wdth' 118,'wght' 700;
  font-size:16px;letter-spacing:.03em;text-transform:uppercase;line-height:1;white-space:nowrap;
}
.wordmark span{
  display:block;font-variation-settings:'wdth' 96,'wght' 400;
  font-size:9.5px;letter-spacing:.24em;color:var(--dust);margin-top:4px;
}

.pulse{
  display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11.5px;
  color:var(--dust);border:1px solid var(--haze);border-radius:100px;
  padding:5px 12px 5px 10px;white-space:nowrap;
}
.dot{
  width:7px;height:7px;border-radius:50%;background:var(--condensate);flex:none;
  box-shadow:0 0 0 0 rgba(92,214,208,.55);animation:ping 2.6s ease-out infinite;
}
.pulse.stale{color:var(--alert);border-color:rgba(232,97,90,.45)}
.pulse.stale .dot{background:var(--alert);box-shadow:none;animation:none}
@keyframes ping{
  0%{box-shadow:0 0 0 0 rgba(92,214,208,.5)}
  70%{box-shadow:0 0 0 9px rgba(92,214,208,0)}
  100%{box-shadow:0 0 0 0 rgba(92,214,208,0)}
}

nav{display:flex;gap:2px}
.tab{
  appearance:none;background:none;border:0;cursor:pointer;color:var(--dust);
  font-family:var(--mono);font-size:11.5px;letter-spacing:.17em;text-transform:uppercase;
  padding:9px 15px;border-radius:var(--r);
}
.tab:hover{color:var(--bone)}
.tab[aria-selected="true"]{color:var(--night);background:var(--condensate);font-weight:600}
.tab:focus-visible{outline:2px solid var(--condensate);outline-offset:2px}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:clamp(30px,5vw,58px) 0 clamp(24px,3.5vw,38px);
  border-bottom:1px solid var(--haze);
}
.hero-head{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:baseline;margin-bottom:26px}
.hero-head h1{
  font-family:var(--disp);font-variation-settings:'wdth' 112,'wght' 600;
  font-size:clamp(21px,3.1vw,31px);line-height:1.12;margin:0;letter-spacing:-.01em;max-width:19ch;
}
.verdict{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.13em;text-transform:uppercase;
  padding:5px 11px;border-radius:100px;border:1px solid;white-space:nowrap;
}
.verdict.on{color:var(--condensate);border-color:rgba(92,214,208,.4);background:rgba(92,214,208,.08)}
.verdict.off{color:var(--dust);border-color:var(--haze)}

.strip{position:relative;height:118px;margin:0 0 6px}
.strip svg{width:100%;height:100%;display:block;overflow:visible}
.strip svg text{font-family:var(--mono);font-size:10px;fill:var(--dust);letter-spacing:.06em}

.strip-legend{
  display:flex;flex-wrap:wrap;gap:8px 26px;margin-top:16px;
  font-family:var(--mono);font-size:11.5px;color:var(--dust);
}
.strip-legend b{font-weight:500;color:var(--bone)}
.swatch{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:7px}
.swatch.is-water{background:var(--condensate)}
.swatch.is-air{background:var(--bone)}
.swatch.is-band{background:rgba(92,214,208,.22)}

/* ---------- sections ---------- */
section{padding:clamp(30px,4.5vw,52px) 0;border-bottom:1px solid var(--haze)}
.sec-head{display:flex;align-items:baseline;gap:14px;margin-bottom:22px;flex-wrap:wrap}
.sec-head h2{
  font-family:var(--disp);font-variation-settings:'wdth' 108,'wght' 600;
  font-size:15px;letter-spacing:.06em;text-transform:uppercase;margin:0;
}
.sec-head p{margin:0;color:var(--dust);font-size:13px;max-width:56ch}

.grid{display:grid;gap:14px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g6{grid-template-columns:repeat(6,1fr)}

.card{
  background:var(--panel);backdrop-filter:blur(3px);
  border:1px solid var(--haze);border-radius:var(--r);
  padding:18px 18px 20px;min-width:0;
}
.card h3{
  margin:0 0 14px;font-family:var(--mono);font-size:10.5px;letter-spacing:.19em;
  text-transform:uppercase;color:var(--dust);font-weight:500;
}

/* ---------- tank ---------- */
.tank-row{display:flex;gap:18px;align-items:stretch}
.vessel{
  position:relative;width:62px;flex:none;border:1px solid var(--haze);border-radius:2px;
  background:linear-gradient(180deg,rgba(255,255,255,.02),transparent);overflow:hidden;min-height:150px;
}
.fill{
  position:absolute;left:0;right:0;bottom:0;height:0;
  background:linear-gradient(180deg,rgba(92,214,208,.55),rgba(92,214,208,.16));
  border-top:2px solid var(--condensate);transition:height .9s cubic-bezier(.4,0,.2,1);
}
.fill::before{
  content:"";position:absolute;left:-50%;right:-50%;top:-5px;height:10px;
  background:
    radial-gradient(50% 100% at 12% 100%, var(--condensate) 0 40%, transparent 41%),
    radial-gradient(50% 100% at 38% 0%,  var(--condensate) 0 40%, transparent 41%),
    radial-gradient(50% 100% at 62% 100%,var(--condensate) 0 40%, transparent 41%),
    radial-gradient(50% 100% at 88% 0%,  var(--condensate) 0 40%, transparent 41%);
  background-size:50% 100%;opacity:.5;animation:swell 5.5s linear infinite;
}
@keyframes swell{to{transform:translateX(25%)}}
.marker{position:absolute;left:0;right:0;bottom:0;border-top:1px dashed rgba(232,97,90,.8)}
.marker::after{
  content:"drain";position:absolute;left:4px;top:3px;font-family:var(--mono);
  font-size:8.5px;letter-spacing:.09em;color:var(--alert);
}
.tank-read{display:flex;flex-direction:column;justify-content:center;gap:3px;min-width:0}
.big{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:clamp(28px,4.4vw,38px);line-height:1;font-weight:500;letter-spacing:-.02em;
}
.unit{font-size:.42em;color:var(--dust);margin-left:5px;letter-spacing:.05em}
.sub{font-size:12.5px;color:var(--dust)}

@keyframes refresh{
  0%{color:var(--condensate);text-shadow:0 0 14px rgba(92,214,208,.5)}
  100%{text-shadow:none}
}
.flash{animation:refresh 1.1s ease-out}

/* ---------- stat rows ---------- */
.rows{display:flex;flex-direction:column}
.row{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:9px 0;border-bottom:1px solid rgba(30,61,76,.6);
}
.row:last-child{border-bottom:0;padding-bottom:0}
.row span{font-size:12.5px;color:var(--dust)}
.row b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:500;font-size:15px}

/* ---------- health flags ---------- */
.flags{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}
.flag{
  border:1px solid var(--haze);border-radius:2px;padding:9px 8px;text-align:center;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--dust);
}
.flag b{display:block;font-size:14px;letter-spacing:0;margin-bottom:3px;font-weight:500}
.flag.ok b{color:var(--condensate)}
.flag.bad{border-color:rgba(232,97,90,.45)}
.flag.bad b{color:var(--alert)}

/* ---------- sensor tiles ---------- */
.tile{
  background:var(--panel);backdrop-filter:blur(3px);
  border:1px solid var(--haze);border-radius:var(--r);padding:14px;
}
.tile .eyebrow{display:block;margin-bottom:9px}
.tile .v{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:21px;font-weight:500;letter-spacing:-.01em;
}
.tile .v i{font-style:normal;font-size:.55em;color:var(--dust);margin-left:3px}

/* ---------- charts ---------- */
.chart{width:100%;display:block;overflow:visible}
.chart text{font-family:var(--mono);font-size:9.5px;fill:var(--dust);letter-spacing:.06em}
.gridline{stroke:var(--haze);stroke-width:1}
.axis{stroke:var(--haze);stroke-width:1}

/* ---------- cost ---------- */
.cost-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.tariff{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.tariff label{
  font-family:var(--mono);font-size:11px;letter-spacing:.13em;
  text-transform:uppercase;color:var(--dust);
}
.tariff input{
  width:92px;background:var(--night);border:1px solid var(--haze);border-radius:2px;
  color:var(--ember);font-family:var(--mono);font-size:13px;padding:5px 8px;
}
.tariff input:focus{outline:2px solid var(--ember);outline-offset:1px}

/* ---------- tables ---------- */
.tbl-scroll{
  overflow-x:auto;border:1px solid var(--haze);border-radius:var(--r);
  background:var(--panel);backdrop-filter:blur(3px);
}
table{
  width:100%;border-collapse:collapse;font-family:var(--mono);font-size:12.5px;
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
th{
  text-align:left;padding:11px 13px;font-size:9.5px;letter-spacing:.15em;text-transform:uppercase;
  color:var(--dust);font-weight:500;border-bottom:1px solid var(--haze);
  background:var(--slab-2);position:sticky;top:0;
}
td{padding:10px 13px;border-bottom:1px solid rgba(30,61,76,.45)}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:rgba(92,214,208,.045)}
.tag{
  font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;
  padding:2px 7px;border-radius:2px;border:1px solid;
}
.tag.night{color:var(--condensate);border-color:rgba(92,214,208,.35)}
.tag.day{color:var(--ember);border-color:rgba(232,163,61,.35)}
.empty{padding:34px 18px;text-align:center;color:var(--dust);font-size:13.5px}

/* ---------- buttons ---------- */
.controls{display:flex;gap:9px;flex-wrap:wrap;align-items:center;margin-bottom:18px}
.btn{
  appearance:none;cursor:pointer;background:transparent;border:1px solid var(--haze);
  color:var(--dust);font-family:var(--mono);font-size:11px;letter-spacing:.13em;
  text-transform:uppercase;padding:8px 14px;border-radius:2px;
}
.btn:hover{color:var(--bone);border-color:var(--condensate)}
.btn[aria-pressed="true"]{background:var(--condensate);color:var(--night);border-color:var(--condensate);font-weight:600}
.btn.primary{border-color:var(--condensate);color:var(--condensate)}
.btn.primary:hover{background:var(--condensate);color:var(--night)}
.btn:focus-visible{outline:2px solid var(--condensate);outline-offset:2px}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn:disabled:hover{color:var(--dust);border-color:var(--haze);background:transparent}

.save-state{font-family:var(--mono);font-size:11px;color:var(--dust);letter-spacing:.08em}
.save-state.dirty{color:var(--ember)}
.save-state.done{color:var(--condensate)}
.err{font-family:var(--mono);font-size:11.5px;color:var(--alert)}

/* ---------- gantt ---------- */
.gantt{
  overflow-x:auto;border:1px solid var(--haze);border-radius:var(--r);
  background:var(--panel);backdrop-filter:blur(3px);
}
.g-inner{min-width:100%;position:relative}
.g-scale{
  display:flex;position:sticky;top:0;z-index:3;background:var(--slab-2);
  border-bottom:1px solid var(--haze);
}
.g-corner{
  width:var(--gname);flex:none;position:sticky;left:0;z-index:4;
  background:var(--slab-2);border-right:1px solid var(--haze);
  padding:9px 13px;font-family:var(--mono);font-size:9.5px;letter-spacing:.15em;
  text-transform:uppercase;color:var(--dust);
}
.g-ticks{flex:1;position:relative;height:34px}
.g-tick{
  position:absolute;top:0;bottom:0;border-left:1px solid var(--haze);
  padding:9px 0 0 7px;font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--dust);white-space:nowrap;
}
.g-group{
  display:flex;align-items:center;gap:9px;padding:11px 13px 6px;
  position:sticky;left:0;font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--dust);
}
.g-group i{display:block;width:8px;height:8px;border-radius:2px;flex:none}
.g-row{display:flex;align-items:stretch;min-height:34px;border-bottom:1px solid rgba(30,61,76,.4)}
.g-row:last-child{border-bottom:0}
.g-row:hover .g-name,.g-row.sel .g-name{color:var(--bone)}
.g-row.sel .g-track{background:rgba(92,214,208,.05)}
.g-name{
  width:var(--gname);flex:none;position:sticky;left:0;z-index:2;
  background:rgba(18,36,48,.97);border-right:1px solid var(--haze);
  padding:9px 12px;font-size:12.5px;color:var(--dust);
  display:flex;align-items:center;gap:8px;cursor:pointer;min-width:0;
}
.g-name span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.g-name i{width:7px;height:7px;border-radius:50%;flex:none}
.g-track{flex:1;position:relative;padding:8px 0;cursor:pointer}
.g-bar{
  position:absolute;top:9px;height:16px;border-radius:2px;min-width:5px;
  display:flex;align-items:center;overflow:hidden;
}
.g-fill{position:absolute;inset:0;width:0;border-radius:2px}
.g-label{
  position:relative;font-family:var(--mono);font-size:9.5px;letter-spacing:.06em;
  padding-left:7px;color:var(--night);font-weight:600;white-space:nowrap;
}
.g-out{
  position:absolute;top:11px;font-family:var(--mono);font-size:9.5px;
  color:var(--dust);white-space:nowrap;
}
.g-ms{position:absolute;top:8px;width:16px;height:16px;transform:rotate(45deg);border-radius:2px}
.g-today{position:absolute;top:0;bottom:0;width:1px;background:var(--alert);z-index:1;pointer-events:none}
.g-today::after{
  content:"today";position:absolute;top:2px;left:5px;font-family:var(--mono);
  font-size:8.5px;letter-spacing:.1em;color:var(--alert);
}
.g-lanes{position:absolute;left:var(--gname);right:0;top:34px;bottom:0;pointer-events:none;z-index:0}
.g-lane{position:absolute;top:0;bottom:0;border-left:1px solid rgba(30,61,76,.5)}

.legend{display:flex;flex-wrap:wrap;gap:8px 18px;font-family:var(--mono);font-size:11px;color:var(--dust)}
.legend i{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:7px}

/* ---------- forms ---------- */
.g-edit{display:grid;grid-template-columns:repeat(auto-fit,minmax(158px,1fr));gap:13px;align-items:end}
.fld{display:flex;flex-direction:column;gap:6px;min-width:0}
.fld label{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--dust);
}
.fld input,.fld select{
  background:var(--night);border:1px solid var(--haze);border-radius:2px;color:var(--bone);
  font-family:var(--mono);font-size:12.5px;padding:8px 9px;width:100%;
}
.fld input:focus,.fld select:focus{outline:2px solid var(--condensate);outline-offset:1px}
.auth-card{max-width:420px}
.swatches{display:flex;gap:6px;flex-wrap:wrap}
.sw{width:26px;height:26px;border-radius:2px;border:2px solid transparent;cursor:pointer;padding:0;appearance:none}
.sw[aria-pressed="true"]{border-color:var(--bone)}
.sw:focus-visible{outline:2px solid var(--condensate);outline-offset:2px}

footer{padding:30px 0 46px;color:var(--dust);font-size:12px}
.foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- responsive ---------- */
@media(max-width:1000px){
  .g6{grid-template-columns:repeat(3,1fr)}
  .cost-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .g3,.g2{grid-template-columns:1fr}
  .bar{height:auto;padding:12px 0;flex-wrap:wrap;gap:11px}
  .brand{order:1}.pulse{order:2}nav{order:3;width:100%}
  .tab{flex:1;text-align:center}
  :root{--gname:150px}
}
@media(max-width:430px){
  .g6{grid-template-columns:repeat(2,1fr)}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}

/* Old readings must not look like current ones. */
.tile.stale .v{opacity:.55}
.tile.stale .eyebrow::after{content:" · last known";color:var(--alert);letter-spacing:.1em}
#planHint{color:var(--ember)}