:root{
  --bg:#0A0E14; --bg2:#0E131B; --card:#121821; --card2:#1A2230; --line:#263042; --line2:#334155;
  --text:#E8EDF5; --muted:#9AA6B8; --accent:#2DD4BF; --accent-ink:#04201C; --accent-soft:#0F2A27;
  --amber:#F5A524; --red:#DC2626; --ok:#6EE7B7; --okbg:#10251F; --warn:#FCD34D; --warnbg:#2A2010;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
[hidden]{display:none!important}
a{color:var(--accent)} a:hover{color:#5EEAD4}
button{font:inherit;cursor:pointer}
.mono{font-family:'JetBrains Mono',monospace}
.muted{color:var(--muted);font-weight:400}
.sr{position:absolute;left:-9999px}

/* ---------- home ---------- */
.home{min-height:100%;display:flex;flex-direction:column}
.nav{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding:20px max(16px,4vw)}
.brand{display:flex;align-items:center;gap:10px;font:700 18px 'Space Grotesk',sans-serif;letter-spacing:.04em}
.brand b{color:var(--accent)}
.mark{width:36px;height:36px;border-radius:10px;background:var(--accent);color:var(--accent-ink);display:flex;align-items:center;justify-content:center;font:700 20px 'Space Grotesk',sans-serif;flex:none}
.mark.sm{width:32px;height:32px;font-size:17px}
.navlinks{display:flex;gap:20px;align-items:center;font-weight:600;font-size:14px}
.link{background:none;border:0;color:var(--accent);font-weight:600;padding:8px 0}
.hero{flex:1;width:100%;max-width:1180px;margin:0 auto;padding:24px max(16px,4vw);display:flex;flex-wrap:wrap;gap:48px;align-items:center}
.pitch{flex:1 1 400px;min-width:0;display:flex;flex-direction:column;gap:20px}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--accent)}
.pitch h1{margin:0;font:700 clamp(36px,6vw,56px)/1.05 'Space Grotesk',sans-serif}
.pitch h1 em{font-style:normal;color:var(--accent)}
.pitch p{margin:0;font-size:18px;line-height:1.6;color:#B6C0CE}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips span{padding:10px 14px;border-radius:12px;background:var(--card);border:1px solid var(--line);font-size:14px}
.cards{flex:1 1 360px;min-width:0;display:flex;flex-direction:column;gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:26px;display:flex;flex-direction:column;gap:16px}
.card h2{margin:0;font:700 22px 'Space Grotesk',sans-serif}
label{display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--muted)}
input{height:52px;border-radius:14px;border:1px solid var(--line2);background:var(--bg);color:var(--text);padding:0 16px;font:16px Inter,sans-serif;outline:none;width:100%}
input:focus{border-color:var(--accent)}
.idbox{height:58px;font:700 24px 'JetBrains Mono',monospace;letter-spacing:.06em}
.primary{height:58px;border:0;border-radius:16px;background:var(--accent);color:var(--accent-ink);font:700 17px 'Space Grotesk',sans-serif;letter-spacing:.04em}
.primary:disabled{opacity:.6;cursor:wait}
.primary.sm{height:44px;padding:0 16px;font-size:14px;border-radius:10px}
.msg{margin:0;min-height:20px;font-size:14px;color:#FCA5A5}
.recents{display:flex;flex-wrap:wrap;gap:8px}
.recents button{height:40px;padding:0 12px;border-radius:10px;border:1px solid var(--line2);background:transparent;color:#C7D0DD;font:500 13px 'JetBrains Mono',monospace}
.help{background:#17130A;border-color:#4A3A12;flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:space-between;padding:20px 26px}
.help div{display:flex;flex-direction:column;gap:4px}
.help strong{color:var(--warn)} .help span{font-size:14px;color:#D6C9A3}
.amber{height:48px;padding:0 20px;border-radius:12px;background:var(--amber);color:#1C1405;font-weight:700;font-size:15px;text-decoration:none;display:flex;align-items:center}
.amber:hover{color:#1C1405;filter:brightness(1.08)}
.foot{text-align:center;padding:18px 16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}

/* ---------- session ---------- */
.session{position:fixed;inset:0;display:flex;flex-direction:column;background:#05080D}
.bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;padding:8px 12px;padding-top:max(8px,env(safe-area-inset-top));background:var(--bg2);border-bottom:1px solid var(--line)}
.who{display:flex;align-items:center;gap:10px;min-width:0}
.whotext{display:flex;flex-direction:column;min-width:0}
.whotext span:first-child{font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.whotext span:last-child{font-size:11px;color:var(--muted)}
.pill{padding:5px 10px;border-radius:999px;background:var(--card2);color:#C7D0DD;font-size:12px;font-weight:600;white-space:nowrap}
.pill.ok{background:var(--okbg);color:var(--ok)} .pill.warn{background:var(--warnbg);color:var(--warn)}
.pill:empty{display:none}
.tools{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.tool{height:40px;min-width:40px;padding:0 12px;border-radius:10px;border:1px solid var(--line2);background:transparent;color:var(--text);font-weight:600;font-size:13px;display:flex;align-items:center;gap:6px;position:relative}
.tool svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.tool.on{border-color:var(--accent);background:var(--accent-soft);color:#5EEAD4}
.tool i{position:absolute;top:6px;right:6px;width:8px;height:8px;border-radius:50%;background:var(--amber)}
.mons{display:flex;gap:6px}
.end{height:40px;padding:0 16px;border-radius:10px;border:0;background:var(--red);color:#fff;font-weight:700;font-size:13px}
.work{flex:1;display:flex;min-height:0}
.stage{flex:1;position:relative;overflow:auto;display:flex;align-items:safe center;justify-content:safe center;background:#05080D;-webkit-overflow-scrolling:touch}
#screen{display:block;outline:none;cursor:default;touch-action:pan-x pan-y;image-rendering:auto;background:#000}
.stage.fit #screen{max-width:100%;max-height:100%;object-fit:contain}
.rcursor{position:absolute;width:14px;height:14px;margin:-7px 0 0 -7px;border-radius:50%;border:2px solid var(--accent);background:rgba(45,212,191,.25);pointer-events:none}
.overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:rgba(5,8,13,.85);font-size:15px;color:#C7D0DD;text-align:center;padding:24px}
.spinner{width:40px;height:40px;border-radius:50%;border:4px solid var(--line);border-top-color:var(--accent);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.chat{width:300px;max-width:85vw;background:var(--card);border-left:1px solid var(--line);display:flex;flex-direction:column;padding:14px;gap:10px}
.chat h3{margin:0;font:700 16px 'Space Grotesk',sans-serif}
.chatlog{flex:1;overflow:auto;display:flex;flex-direction:column;gap:8px}
.chatlog div{max-width:88%;padding:9px 13px;border-radius:14px;font-size:14px;line-height:1.4;word-wrap:break-word}
.chatlog .them{align-self:flex-start;background:var(--card2);border-bottom-left-radius:4px}
.chatlog .me{align-self:flex-end;background:var(--accent-soft);color:#CCFBF1;border-bottom-right-radius:4px}
.chatform{display:flex;gap:8px}
.chatform input{height:44px;border-radius:10px;font-size:14px}
.kbin{position:fixed;left:0;bottom:0;width:1px;height:1px;opacity:0;border:0;padding:0}
@media (max-width:700px){
  .tool span{display:none}
  #qualBtn,#tmBtn{display:none}
  .chat{position:absolute;right:0;top:0;bottom:0;z-index:5}
  .work{position:relative}
}