/* Layout concept: one spiral "brain" behind everything. Hub = a single portal box at its centre.
   Engine = the same spiral dimmed, with a chat column at the centre and a walkie-talkie dock under it.
   Dark-first (LED amber on deep ink); light theme mirrors the tokens. */
:root{
  --bg:#0a1216; --panel:#0f1b21; --panel-2:#142329; --fg:#e7eff2; --dim:#9db0b8;
  --line:#243940; --grid:#4d8394; --pulse:#ffb547; --accent:#ffb547; --on-accent:#1a1000;
  --ok:#5ed39a; --bad:#ff8577; --focus:#8fdcff; --scrim:rgba(4,9,11,.74); --shadow:0 20px 60px rgba(0,0,0,.45);
  --f-display:'Bricolage Grotesque','Segoe UI',system-ui,sans-serif;
  --f-body:'IBM Plex Sans','Noto Sans Devanagari','Noto Sans Gujarati','Noto Sans Tamil',system-ui,sans-serif;
  --f-mono:'IBM Plex Mono',ui-monospace,Menlo,monospace;
  color-scheme:dark;
}
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]){
    --bg:#e9eff2; --panel:#ffffff; --panel-2:#f1f6f8; --fg:#0d1a20; --dim:#4b6069;
    --line:#c4d3d9; --grid:#6f97a5; --pulse:#c26a00; --accent:#b45f06; --on-accent:#ffffff;
    --ok:#17794f; --bad:#b3261e; --focus:#005fcc; --scrim:rgba(13,26,32,.5); --shadow:0 20px 50px rgba(13,26,32,.18);
    color-scheme:light;
  }
}
:root[data-theme="light"]{
  --bg:#e9eff2; --panel:#ffffff; --panel-2:#f1f6f8; --fg:#0d1a20; --dim:#4b6069;
  --line:#c4d3d9; --grid:#6f97a5; --pulse:#c26a00; --accent:#b45f06; --on-accent:#ffffff;
  --ok:#17794f; --bad:#b3261e; --focus:#005fcc; --scrim:rgba(13,26,32,.5); --shadow:0 20px 50px rgba(13,26,32,.18);
  color-scheme:light;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; background:var(--bg); color:var(--fg); font-family:var(--f-body); font-size:15px; line-height:1.5;
  padding-left:max(16px,env(safe-area-inset-left,0px)); padding-right:max(16px,env(safe-area-inset-right,0px));
  overflow-x:hidden;
}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
h1,h2,h3,p{margin:0}
.app{position:relative;height:100%;display:flex;flex-direction:column;min-height:0}
#grid{position:fixed;inset:0;width:100%;height:100%;z-index:0;transition:opacity .6s}
.in-engine #grid{opacity:.4}
main{position:relative;z-index:1;flex:1;min-height:0;display:flex;flex-direction:column}

/* ---------- shared ---------- */
.mono{font-family:var(--f-mono)}
.label{font-family:var(--f-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.hint{font-size:13px;color:var(--dim)}
.langs .lm{display:inline-grid;place-items:center;width:46px;height:46px;border-radius:50%;border:3px solid #fff;box-shadow:0 2px 6px rgba(0,0,0,.35);margin-right:8px;padding:6px 4px 3px;flex:none}.langs .lm svg{width:100%;height:auto}
.btn{min-height:44px;padding:0 16px;border:1px solid var(--line);background:var(--panel-2);border-radius:4px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:10px;text-align:center}
.btn:hover:not(:disabled){border-color:var(--accent)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.primary{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}
.btn.small{min-height:36px;padding:0 12px;font-size:13px}
.chip{font-family:var(--f-mono);font-size:11px;letter-spacing:.04em;padding:2px 8px;border:1px solid var(--line);border-radius:99px;white-space:nowrap;color:var(--fg)}
.chip.acc{border-color:var(--accent);color:var(--accent)}

/* ---------- hub ---------- */
.hub{flex:1;display:grid;place-items:center;padding-block:24px}
.portal{width:min(600px,100%);padding:clamp(24px,5vw,44px);background:var(--panel);border:1px solid var(--line);border-radius:6px;box-shadow:var(--shadow);display:grid;gap:22px}
.portal h1{font-family:var(--f-display);font-weight:800;font-size:clamp(2.6rem,9vw,5.2rem);line-height:.95;letter-spacing:-.02em;text-wrap:balance}
.portal .sub{display:flex;gap:12px;align-items:center}
.portal .sub::before{content:"";width:28px;height:2px;background:var(--accent)}
.signin{display:grid;gap:10px}
.signin .btn{justify-content:flex-start;padding:0 14px}
/* Placeholder marks: swap in the official Google and Microsoft logo SVGs at build time. */
.mark{width:26px;height:26px;border-radius:50%;border:1px solid var(--dim);display:grid;place-items:center;font:600 13px var(--f-mono);color:var(--dim)}
.domain{font-family:var(--f-mono);font-size:12px;color:var(--dim);letter-spacing:.06em}
#handoff{min-height:1.5em;font-size:14px;color:var(--accent)}

/* ---------- consent ---------- */
.scrim{position:fixed;inset:0;z-index:20;background:var(--scrim);display:grid;place-items:center;padding:16px}
.dialog{width:min(480px,100%);background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:24px;display:grid;gap:16px}
.dialog h2{font-family:var(--f-display);font-size:1.6rem;line-height:1.1}
.dialog ul{margin:0;padding-left:18px;display:grid;gap:6px}
.dialog label.ck{display:flex;gap:10px;align-items:flex-start;cursor:pointer}
.dialog input[type=checkbox]{width:20px;height:20px;margin-top:2px;accent-color:var(--accent)}
.dialog .row{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}
.dialog a{color:var(--accent)}

/* ---------- engine ---------- */
.engine{flex:1;min-height:0;display:flex;flex-direction:column;gap:10px;width:100%;max-width:840px;margin-inline:auto;padding-block:12px}
.bar{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;justify-content:space-between;padding:10px 14px;background:var(--panel);border:1px solid var(--line);border-radius:6px}
.bar .grp{display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;min-width:0}
.bar select{min-height:36px;background:var(--panel-2);border:1px solid var(--line);border-radius:4px;padding:0 8px}
.bal strong{font-family:var(--f-mono);font-size:16px}
.mt{display:grid;gap:2px;min-width:90px}
.mt .track{height:6px;border-radius:3px;background:var(--line);overflow:hidden}
.mt .track i{display:block;height:100%;width:0;background:var(--accent);transition:width .4s}
.steps{display:flex;list-style:none;margin:0;padding:4px 0;overflow-x:auto;counter-reset:s}
.steps li{flex:1 0 auto;display:flex;align-items:center;gap:8px;font-family:var(--f-mono);font-size:12px;letter-spacing:.06em;color:var(--dim);white-space:nowrap}
.steps li:last-child{flex:0 0 auto}
.steps li::before{counter-increment:s;content:counter(s);flex:none;width:26px;height:26px;border-radius:50%;border:2px solid var(--line);background:var(--panel);display:grid;place-items:center;font-size:12px}
.steps li:not(:last-child)::after{content:"";flex:1;min-width:24px;height:2px;margin:0 10px 0 4px;background:var(--line)}
.steps li.done{color:var(--fg)}
.steps li.done::before{content:"\2713";background:var(--ok);border-color:var(--ok);color:var(--bg)}
.steps li.done::after{background:var(--ok)}
.steps li.now{color:var(--fg);font-weight:500}
.steps li.now::before{border-color:var(--accent);color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent)}
.stepnow{margin:0}
.chat{flex:1;min-height:0;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);overflow:hidden}
.log{flex:1;min-height:0;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}
.msg{max-width:min(92%,640px);padding:10px 14px;border:1px solid var(--line);border-radius:4px 14px 14px 14px;background:var(--panel-2)}
.msg.me{align-self:flex-end;border-radius:14px 4px 14px 14px;background:color-mix(in srgb,var(--accent) 16%,var(--panel))}
.msg .meta{display:block;font-family:var(--f-mono);font-size:11px;color:var(--dim);margin-bottom:2px}
.card{align-self:stretch;display:grid;gap:12px;padding:14px;background:var(--panel-2);border:1px solid var(--line);border-radius:8px}
.card h3{font-family:var(--f-display);font-size:1.15rem}
.card.locked{opacity:.75}
.up{display:grid;gap:10px}
.up-row{display:grid;gap:2px}
.up-row label{font-weight:600}
.up-row input[type=file]{max-width:100%;color:var(--dim)}
.files{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.files li{display:flex;gap:8px;align-items:center;min-width:0}
.files .fn{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.files .x{width:32px;height:32px;border:1px solid var(--line);background:var(--panel);border-radius:4px;cursor:pointer}
.warn{color:var(--bad);font-size:14px;min-height:1.2em}
.stages{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.stages li{display:grid;grid-template-columns:16px 1fr;gap:4px 10px;align-items:center}
.stages .dot{width:12px;height:12px;border-radius:50%;border:2px solid var(--line)}
.stages .how{grid-column:2;font-family:var(--f-mono);font-size:12px;color:var(--dim)}
.stages li.run .dot{border-color:var(--accent);animation:blink 1s infinite}
.stages li.ok .dot{background:var(--ok);border-color:var(--ok)}
.stages li.fail .dot{background:var(--bad);border-color:var(--bad)}
@keyframes blink{50%{opacity:.3}}
.room{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:8px}
.room svg{display:block;width:100%;max-height:300px}
.room .wl{fill:var(--panel-2)} .room .wr{fill:var(--panel)}
.room .edge{fill:none;stroke:var(--dim);stroke-width:1}
.room .tiles path{stroke:var(--fg);stroke-opacity:.18;stroke-width:.6;fill:none}
.room .ghost{fill:none;stroke:var(--dim);stroke-dasharray:4 3}
.room .glow{filter:drop-shadow(0 0 4px currentColor)}
.wm::after{content:"BRAHMANI · FREEMIUM PREVIEW";position:absolute;inset:0;display:grid;place-items:center;transform:rotate(-16deg);font:600 clamp(14px,3.4vw,24px) var(--f-mono);letter-spacing:.1em;color:var(--fg);opacity:.2;pointer-events:none}
.acts{display:flex;flex-wrap:wrap;gap:8px}
.opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px}
.opt{text-align:left;display:grid;gap:8px;align-content:start;padding:12px;background:var(--panel);border:1px solid var(--line);border-radius:6px;cursor:pointer}
.opt:hover{border-color:var(--dim)}
.opt[aria-pressed="true"]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.opt .top{display:flex;justify-content:space-between;gap:6px;align-items:center;flex-wrap:wrap}
.opt .sw{height:10px;border-radius:2px}
.opt b{font-weight:600;line-height:1.3}
.opt .spec{font-size:13px;color:var(--dim)}
.sc{display:grid;grid-template-columns:96px 1fr 34px;gap:6px;align-items:center;font-size:12px;color:var(--dim)}
.sc span.t{height:5px;border-radius:3px;background:var(--line);overflow:hidden}
.sc span.t i{display:block;height:100%;background:var(--accent)}
.tablewrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
thead th{font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);font-weight:500}
td input[type=number]{width:64px;min-height:36px;background:var(--panel);border:1px solid var(--line);border-radius:4px;padding:0 8px}
td label{display:inline-flex;gap:6px;align-items:center;cursor:pointer;white-space:nowrap}
td input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent)}
.notes{margin:0;padding-left:18px;display:grid;gap:4px;font-size:13px;color:var(--dim)}
.confirmbar{display:grid;gap:8px;padding:12px;border:1px solid var(--accent);border-radius:6px}

.dock{border-top:1px solid var(--line);padding:12px 16px;display:grid;gap:10px;background:var(--panel)}
.langs{display:flex;flex-wrap:wrap;gap:6px}
.langs button{display:inline-flex;align-items:center;min-height:56px;padding:0 16px 0 6px;border:1px solid var(--line);background:var(--panel-2);border-radius:99px;cursor:pointer}
.langs button[aria-pressed="true"]{border-color:var(--accent);color:var(--accent)}
.walkie{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.talk{min-height:52px;padding:0 30px;border-radius:99px;background:var(--accent);color:var(--on-accent);border:0;font:800 1.05rem var(--f-display);cursor:pointer}
.talk:disabled{opacity:.45;cursor:not-allowed}
.ring{position:relative;width:56px;height:56px;display:grid;place-items:center}
.ring svg{position:absolute;inset:0}
.ring .r0{fill:none;stroke:var(--line);stroke-width:4}
.ring .r1{fill:none;stroke:var(--accent);stroke-width:4;stroke-linecap:round}
.ring span{font:500 15px var(--f-mono)}
.foot{font-size:12px;color:var(--dim)}

@media (max-width:520px){
  .sc{grid-template-columns:84px 1fr 34px}
  .walkie .btn{flex:1}
}
@media (prefers-reduced-motion:reduce){
  .stages li.run .dot{animation:none}
  #grid{transition:none}
}

.logo{flex:none}
.signin .btn{gap:12px}
.vwrap{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:6px;overflow:hidden}
.vwrap:fullscreen{border:0;border-radius:0;background:#06080b}
.v3d{display:block;width:100%;height:min(52vh,420px);cursor:grab;background:var(--panel)}
.vwrap:fullscreen .v3d{height:100vh}
.vbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.vbar select{min-height:36px;background:var(--panel-2);border:1px solid var(--line);border-radius:4px;padding:0 8px}
.lchip{min-height:34px;padding:0 12px;border:1px solid var(--line);background:var(--panel-2);border-radius:99px;font:500 12px var(--f-mono);cursor:pointer}
.lchip[aria-pressed="true"]{border-color:var(--accent);color:var(--accent)}
.lchip:disabled{opacity:.4;cursor:not-allowed}
.vlist summary{cursor:pointer;color:var(--dim);font-size:13px}
.vlist ul{list-style:none;margin:8px 0 0;padding:0;display:grid;gap:4px;max-height:220px;overflow:auto}
.vlist li{display:flex;gap:8px;align-items:center;font-size:13px}
.vlist .sw2{width:14px;height:14px;border-radius:3px;border:1px solid var(--line);flex:none}
.vlist .q{margin-left:auto;font-family:var(--f-mono);color:var(--dim);font-size:12px}
.chips{display:flex;flex-wrap:wrap;gap:8px}

[hidden]{display:none!important}