/* Vidyut Netra (Krionix) app. Same visual language as the pilot blueprint:
   control-room slate, signal amber accent, semantic green/amber/red for health. */
:root{
  --bg:#eef1f4; --panel:#fff; --panel2:#f5f7f9; --line:#d3d9e0; --fg:#18212b; --muted:#5a6775;
  --accent:#c77800; --accent-fg:#1a1205; --accent-soft:#fff1d9; --nav:#0f1820; --nav-fg:#cfe3f2; --nav-muted:#8fb0c8;
  --ok:#17844a; --ok-soft:#dcf2e5; --warn:#b86e00; --warn-soft:#fdeccc; --crit:#c62f2f; --crit-soft:#fbe0e0; --off:#7b8590; --off-soft:#e6e9ed;
  --k400:#8e44ad; --k220:#c0392b; --k110:#d35400; --k66:#2c6cb0; --k0:#9aa5b1;
  --f-disp:"Barlow Semi Condensed","Arial Narrow",Arial,sans-serif;
  --f-body:"Source Sans 3","Segoe UI",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0d1319; --panel:#141c24; --panel2:#18222c; --line:#2a3744; --fg:#e4ebf1; --muted:#93a3b2;
  --accent:#f0a32a; --accent-soft:#3a2a10; --nav:#081016;
  --ok:#3fbf78; --ok-soft:#123222; --warn:#f0a32a; --warn-soft:#3a2a10; --crit:#f06262; --crit-soft:#3d1717; --off:#8592a0; --off-soft:#232d37;
  --k400:#b98ae0; --k220:#f07a6c; --k110:#f2a05a; --k66:#5aa2ec; --k0:#6f7c89; color-scheme:dark}}
*{box-sizing:border-box}
html,body{height:100%}
#app{min-height:100%;display:grid}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.5 var(--f-body)}
h1,h2,h3{font-family:var(--f-disp);margin:0;line-height:1.15;text-wrap:balance}
h1{font-size:26px} h2{font-size:20px} h3{font-size:17px}
p{margin:0}
a{color:inherit}
.boot{padding:40px;text-align:center;color:var(--muted)}
.muted{color:var(--muted)} .mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.eyebrow{font:600 12px/1 var(--f-disp);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}

/* shell */
.shell{display:grid;grid-template-columns:220px minmax(0,1fr);min-height:100%}
.side{background:var(--nav);color:var(--nav-fg);padding:16px 10px;display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh}
.brand{font:700 18px var(--f-disp);padding:4px 10px 14px;letter-spacing:.02em}
.brand small{display:block;font:500 11px var(--f-mono);color:var(--nav-muted);letter-spacing:.06em}
.side a{display:flex;gap:10px;align-items:center;text-decoration:none;color:var(--nav-fg);padding:9px 10px;border-radius:6px;font:600 15px var(--f-disp);letter-spacing:.02em}
.side a[aria-current="page"]{background:rgba(240,163,42,.16);color:#f0a32a}
.side .who{margin-top:auto;border-top:1px solid #22323f;padding:12px 10px 0;font-size:13px;color:var(--nav-muted)}
.side .who b{color:var(--nav-fg);display:block;font-size:14px}
.main{min-width:0;padding-inline:20px;padding-block:20px 90px;display:grid;gap:16px;align-content:start;max-width:1200px;width:100%}
.topbar{display:none}
.bottomnav{display:none}
@media (max-width:820px){
  .shell{grid-template-columns:minmax(0,1fr)}
  .side{display:none}
  .topbar{display:flex;justify-content:space-between;align-items:center;gap:8px;background:var(--nav);color:var(--nav-fg);padding:calc(10px + env(safe-area-inset-top,0px)) 16px 10px;position:sticky;top:0;z-index:5}
  .topbar b{font:700 17px var(--f-disp)}
  .topbar .unit{font-size:12px;color:var(--nav-muted)}
  .main{padding-inline:16px}
  .bottomnav{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;position:fixed;bottom:0;left:0;right:0;background:var(--nav);padding-bottom:env(safe-area-inset-bottom,0px);z-index:5}
  .bottomnav a{text-decoration:none;color:var(--nav-muted);text-align:center;padding:9px 2px;font:600 12px var(--f-disp);letter-spacing:.04em;text-transform:uppercase}
  .bottomnav a[aria-current="page"]{color:#f0a32a}
}

/* blocks */
.card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px;min-width:0}
.row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.between{justify-content:space-between}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:14px}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:12px}
.kpi .v{font:600 26px var(--f-mono)} .kpi .l{font-size:13px;color:var(--muted)}
.note{border-left:3px solid var(--accent);background:var(--accent-soft);padding:10px 14px;border-radius:0 6px 6px 0;font-size:14px}
.pill{display:inline-block;font:600 11.5px/1 var(--f-disp);letter-spacing:.06em;text-transform:uppercase;padding:4px 8px;border-radius:999px;white-space:nowrap}
.p-ok{background:var(--ok-soft);color:var(--ok)} .p-warn{background:var(--warn-soft);color:var(--warn)} .p-crit{background:var(--crit-soft);color:var(--crit)} .p-off{background:var(--off-soft);color:var(--off)} .p-acc{background:var(--accent-soft);color:var(--accent)}
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:8px;background:var(--panel)}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
th{font:600 12px var(--f-disp);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:var(--panel2);white-space:nowrap}
tr:last-child td{border-bottom:0}
tr.click{cursor:pointer} tr.click:hover td{background:var(--panel2)}
.empty{padding:24px;text-align:center;color:var(--muted)}

/* forms */
.form{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}
label.f{display:grid;gap:4px;font-size:12.5px;color:var(--muted)}
input,select,textarea{font:inherit;color:var(--fg);background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:8px 10px;min-width:0;width:100%}
textarea{font-family:var(--f-mono);font-size:13px}
.btn{font:600 14px var(--f-disp);letter-spacing:.04em;text-transform:uppercase;border:0;border-radius:6px;padding:9px 14px;cursor:pointer;background:var(--accent);color:var(--accent-fg);white-space:nowrap}
.btn.ghost{background:var(--panel2);color:var(--fg);border:1px solid var(--line)}
.btn.danger{background:var(--crit-soft);color:var(--crit)}
.btn.small{padding:6px 10px;font-size:12.5px}
.btn:disabled{opacity:.5;cursor:default}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.err{color:var(--crit);font-size:14px}
dialog{border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--fg);padding:0;width:min(560px,calc(100% - 32px))}
dialog::backdrop{background:rgba(5,10,15,.55)}
dialog .dh{padding:14px 16px;border-bottom:1px solid var(--line)}
dialog .db{padding:16px;display:grid;gap:12px}
dialog .df{padding:12px 16px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px}

/* login */
.login{min-height:100%;display:grid;place-items:center;padding:24px 16px;background:var(--nav)}
.login .card{width:min(380px,100%);display:grid;gap:14px}
.brandmark{display:flex;gap:12px;align-items:center;margin-bottom:6px}

/* hierarchy tree */
.tree{display:grid;gap:2px}
.node{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:10px;align-items:center;padding:7px 10px;border-radius:6px}
.node:hover{background:var(--panel2)}
.node .lvl{font:600 11px var(--f-disp);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);width:86px}
.node .nm{font-weight:600;overflow-wrap:anywhere}
.node .ct{font-size:12.5px;color:var(--muted);white-space:nowrap}

/* switches */
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{border:0;background:var(--panel);color:var(--fg);padding:9px 16px;font:600 14px var(--f-disp);cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--accent);color:var(--accent-fg)}
.switch{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}
.switch:last-child{border-bottom:0}
.switch input{width:auto;transform:scale(1.3)}

/* bar chart */
.bars{display:grid;gap:6px}
.bar{display:grid;grid-template-columns:140px minmax(0,1fr) 40px;gap:10px;align-items:center;font-size:13.5px}
.bar .track{display:flex;height:16px;border-radius:3px;overflow:hidden;background:var(--panel2)}
.bar .track span{height:100%}
.legend{display:flex;flex-wrap:wrap;gap:12px;font-size:12.5px;color:var(--muted)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:5px;vertical-align:-1px}

#toast{position:fixed;left:50%;bottom:calc(76px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--fg);color:var(--bg);padding:10px 16px;border-radius:8px;font-size:14px;z-index:50;max-width:calc(100% - 32px)}
@media (prefers-reduced-motion:no-preference){#toast{transition:opacity .2s}}

.netcols{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:14px;align-items:start}
@media (max-width:1100px){.netcols{grid-template-columns:minmax(0,1fr)}}

/* control room animation (mimic power flow, critical blink) */
@keyframes flow{to{stroke-dashoffset:-24}}
.flow{stroke-dasharray:6 6;animation:flow var(--spd,1s) linear infinite}
@keyframes blink{50%{opacity:.25}}
.blink{animation:blink 1s steps(2) infinite}
@media (prefers-reduced-motion:reduce){.flow,.blink{animation:none}}
.dt-node{cursor:pointer}
.dt-node:focus-visible circle{stroke:#fff;stroke-width:3}

/* wall screen */
.wall{min-height:100vh;background:#081016;color:#cfe3f2;display:grid;grid-template-rows:auto 1fr}
.wall-top{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;padding:10px 16px;border-bottom:1px solid #22323f;font:600 16px var(--f-disp)}
.wall-top .btn.ghost{background:#0f1820;color:#cfe3f2;border-color:#2b3c4c}
.wall-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:10px;min-height:0}
.wall[data-panel]:not([data-panel="all"]) .wall-grid{grid-template-columns:1fr}
.wp{background:#0c151d;border:1px solid #22323f;border-radius:8px;padding:12px;min-width:0;overflow:hidden}
.wp h2{font-size:20px;margin-bottom:8px;color:#e8f3fb}
.wp .muted{color:#8fb0c8}
.wrow{display:grid;grid-template-columns:56px 120px minmax(0,1fr) auto;gap:10px;align-items:center;padding:8px 6px;border-bottom:1px solid #1b2a36;font-size:16px}
.wrow.sev-critical{color:#ff8a8a}.wrow.sev-warning{color:#f0b14a}.wrow.sev-offline{color:#9aa5b1}
@media (max-width:1000px){.wall-grid{grid-template-columns:1fr}}

/* printing reports: drop the app chrome, print on white */
@media print{
  .side,.topbar,.bottomnav,#toast,.btn,input[type=date]{display:none!important}
  .shell{display:block}
  body,.card,.tbl,th{background:#fff!important;color:#000!important}
  .main{padding:0;max-width:none}
  *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
}