*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --ink:#0f0f10;
  --ink2:#4a4a52;
  --ink3:#9898a4;
  --ink4:#c8c8d0;
  --paper:#fafaf8;
  --paper2:#f3f3f0;
  --paper3:#eaeae6;
  --line:#e2e2dc;
  --line2:#d0d0c8;
  --g:#1a5e3a;
  --g-bg:#e8f4ee;
  --g-mid:#2d7a52;
  --serif:'Instrument Serif',serif;
  --sans:'Geist',sans-serif;
  --mono:'Geist Mono',monospace;
  --r:10px;
  --rsm:6px;
}

html,body{height:100%;overflow:hidden;background:var(--paper);color:var(--ink);font-family:var(--sans)}

.shell{display:grid;grid-template-rows:auto 1fr;height:100vh}

/* NAV */
nav{
  height:50px;display:flex;align-items:center;
  border-bottom:1px solid var(--line);
  background:var(--paper);z-index:20;
  padding:0;flex-shrink:0;
}
.nav-brand{
  display:flex;align-items:center;gap:9px;
  padding:0 20px;height:100%;
  border-right:1px solid var(--line);
  text-decoration:none;
}
.nav-logo-box{
  width:26px;height:26px;border-radius:6px;
  background:var(--g);
  display:flex;align-items:center;justify-content:center;
}
.nav-logo-box svg{width:14px;height:14px}
.nav-wordmark{
  font-family:var(--serif);font-size:17px;
  color:var(--ink);letter-spacing:-.2px;
}
.nav-wordmark em{color:var(--g);font-style:italic}
.nav-sep{width:1px;height:26px;background:var(--line);margin:0 14px;flex-shrink:0}
.nav-tag{font-size:12px;color:var(--ink3)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:0;height:100%}
.nav-turn{
  padding:0 18px;height:100%;
  display:flex;align-items:center;gap:7px;
  border-left:1px solid var(--line);
  font-size:12px;color:var(--ink3);
}
.nav-turn b{color:var(--g);font-weight:600}
.turn-track{
  width:60px;height:4px;
  background:var(--paper3);border-radius:2px;overflow:hidden;
}
.turn-fill{
  height:100%;background:var(--g);border-radius:2px;
  width:0%;transition:width .5s ease;
}
.nav-reset{
  padding:0 18px;height:100%;
  border-left:1px solid var(--line);
  background:transparent;border-top:none;border-right:none;border-bottom:none;
  font-size:12px;color:var(--ink3);cursor:pointer;
  font-family:var(--sans);
  display:flex;align-items:center;gap:6px;
  transition:color .15s;
}
.nav-reset:hover{color:var(--g)}
.nav-reset svg{width:13px;height:13px}

/* BODY */
.body{display:grid;grid-template-columns:210px 1fr;overflow:hidden;transition:grid-template-columns .2s ease}
.body.closed{grid-template-columns:0px 1fr}

/* NAV TOGGLE */
.nav-toggle{
  width:32px;height:32px;border-radius:var(--rsm);
  background:transparent;border:none;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;color:var(--ink2);margin-right:8px;
  transition:background .15s,color .15s;
}
.nav-toggle:hover{background:var(--paper2);color:var(--ink)}
.nav-toggle svg{width:18px;height:18px}

/* RAIL */
.rail{
  border-right:1px solid var(--line);
  background:var(--paper);
  display:flex;flex-direction:column;overflow:hidden;
}
.rail-section{padding:14px 12px 8px}
.rail-label{
  font-size:10px;font-weight:500;letter-spacing:.09em;
  text-transform:uppercase;color:var(--ink3);
  display:block;margin-bottom:9px;
}
.rail-scroll{flex:1;overflow-y:auto;padding:4px 8px 8px}
.rail-scroll::-webkit-scrollbar{width:2px}
.rail-scroll::-webkit-scrollbar-thumb{background:var(--line2)}

.prompt-item{
  padding:8px 10px;border-radius:var(--rsm);
  font-size:12px;color:var(--ink3);
  cursor:pointer;transition:all .12s;
  line-height:1.45;margin-bottom:1px;
  display:flex;align-items:flex-start;gap:8px;
}
.prompt-item:hover{background:var(--paper2);color:var(--ink)}
.p-dot{
  width:4px;height:4px;border-radius:50%;
  background:var(--line2);flex-shrink:0;margin-top:5px;
  transition:background .12s;
}
.prompt-item:hover .p-dot{background:var(--g)}

.rail-footer{
  padding:12px 14px;border-top:1px solid var(--line);
  display:flex;align-items:center;gap:7px;
  font-size:11px;color:var(--ink3);font-family:var(--mono);
}
.live{
  width:7px;height:7px;border-radius:50%;background:var(--g);
  animation:breathe 2.5s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.3}}

/* CHAT */
.chat{display:flex;flex-direction:column;overflow:hidden}

.chat-header{
  padding:12px 28px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:12px;
  flex-shrink:0;background:var(--paper);
}
.ch-ava{
  width:32px;height:32px;border-radius:var(--rsm);
  background:var(--g-bg);border:1px solid rgba(26,94,58,.18);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-style:italic;
  font-size:15px;color:var(--g);flex-shrink:0;
}
.ch-name{font-size:14px;font-weight:500}
.ch-sub{font-size:11px;color:var(--ink3);margin-top:1px}

/* MESSAGES */
.msgs{
  flex:1;overflow-y:auto;
  padding:28px 40px;
  display:flex;flex-direction:column;gap:0;
  scroll-behavior:smooth;
}
.msgs::-webkit-scrollbar{width:4px}
.msgs::-webkit-scrollbar-thumb{background:var(--line2);border-radius:2px}

/* WELCOME */
.welcome{
  display:flex;flex-direction:column;
  justify-content:center;padding:20px 0 40px;
  max-width:560px;
}
.wlc-eyebrow{
  font-size:11px;font-weight:500;letter-spacing:.1em;
  text-transform:uppercase;color:var(--g);margin-bottom:14px;
  display:flex;align-items:center;gap:10px;
}
.wlc-eyebrow::before{content:'';width:20px;height:1px;background:var(--g)}
.welcome h1{
  font-family:var(--serif);font-size:34px;
  line-height:1.18;letter-spacing:-.4px;
  margin-bottom:12px;
}
.welcome h1 em{color:var(--g);font-style:italic}
.welcome p{
  font-size:13px;color:var(--ink2);line-height:1.7;
  margin-bottom:24px;max-width:420px;
}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{
  padding:6px 14px;border-radius:20px;
  font-size:12px;color:var(--ink2);cursor:pointer;
  border:1px solid var(--line2);background:var(--paper2);
  transition:all .15s;font-family:var(--sans);
}
.chip:hover{border-color:var(--g);color:var(--g);background:var(--g-bg)}

/* MESSAGE ROWS */
.mrow{
  display:flex;gap:14px;
  padding:18px 0;
  border-bottom:1px solid var(--line);
  animation:fup .25s ease;
}
.mrow:last-child{border-bottom:none}
@keyframes fup{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
.mrow.user{flex-direction:row-reverse}

.mava{
  width:28px;height:28px;border-radius:var(--rsm);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:500;flex-shrink:0;
  margin-top:2px;
}
.mava.bot{
  background:var(--g-bg);border:1px solid rgba(26,94,58,.18);
  color:var(--g);font-family:var(--serif);font-style:italic;font-size:14px;
}
.mava.user{
  background:var(--paper3);border:1px solid var(--line2);
  color:var(--ink2);font-family:var(--mono);font-size:10px;
}

.mbody{flex:1;min-width:0}
.mrow.user .mbody{display:flex;flex-direction:column;align-items:flex-end}

.mmeta{
  font-size:10px;color:var(--ink3);
  font-family:var(--mono);margin-bottom:6px;
}
.mbubble{
  font-size:14px;line-height:1.72;color:var(--ink);max-width:680px;
}
.mrow.user .mbubble{
  background:var(--paper2);border:1px solid var(--line);
  border-radius:var(--r);padding:11px 15px;
  font-size:13px;
}

/* TYPING */
.trow{display:flex;gap:14px;padding:18px 0;animation:fup .25s ease}
.tdots{display:flex;gap:4px;align-items:center;padding:8px 0}
.td{
  width:5px;height:5px;border-radius:50%;background:var(--ink4);
  animation:tdb 1.4s infinite;
}
.td:nth-child(2){animation-delay:.15s}
.td:nth-child(3){animation-delay:.3s}
@keyframes tdb{0%,80%,100%{transform:scale(1);opacity:.35}40%{transform:scale(1.5);opacity:1}}

/* RECS */
.recs{margin-top:14px}
.rec-eyebrow{
  font-size:10px;font-weight:500;letter-spacing:.09em;
  text-transform:uppercase;color:var(--ink3);
  margin-bottom:10px;display:flex;align-items:center;gap:8px;
}
.rec-eyebrow::after{content:'';flex:1;height:1px;background:var(--line)}
.rec-list{display:flex;flex-direction:column;gap:2px}

.rec{
  display:flex;align-items:center;gap:12px;
  padding:10px 13px;border-radius:var(--rsm);
  border:1px solid var(--line);background:var(--paper);
  cursor:pointer;transition:all .15s;text-decoration:none;
  position:relative;overflow:hidden;
}
.rec::before{
  content:'';position:absolute;left:0;top:0;bottom:0;
  width:2px;background:var(--g);
  transform:scaleY(0);transition:transform .15s;
}
.rec:hover{background:var(--g-bg);border-color:rgba(26,94,58,.22)}
.rec:hover::before{transform:scaleY(1)}

.rbadge{
  font-family:var(--mono);font-size:10px;font-weight:500;
  width:24px;height:24px;border-radius:5px;
  background:var(--paper3);border:1px solid var(--line2);
  color:var(--ink2);display:flex;align-items:center;justify-content:center;
  flex-shrink:0;transition:all .15s;
}
.rec:hover .rbadge{background:var(--g-bg);border-color:rgba(26,94,58,.3);color:var(--g)}

.rinfo{flex:1;min-width:0}
.rname{font-size:13px;font-weight:500;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rmeta{font-size:11px;color:var(--ink3);margin-top:2px;display:flex;gap:10px;font-family:var(--mono)}
.rtag{color:var(--ink3)}
.rtag.ok{color:var(--g-mid)}

.rarrow{font-size:11px;color:var(--ink4);flex-shrink:0;font-family:var(--mono);transition:color .15s}
.rec:hover .rarrow{color:var(--g)}

/* EOC */
.eoc{
  display:inline-flex;align-items:center;gap:7px;
  margin-top:12px;padding:8px 13px;
  background:var(--g-bg);border:1px solid rgba(26,94,58,.2);
  border-radius:var(--rsm);font-size:12px;color:var(--g);
}
.eoc svg{width:11px;height:11px;flex-shrink:0}

/* COMPOSER */
.composer{
  padding:14px 28px 18px;
  border-top:1px solid var(--line);
  background:var(--paper);flex-shrink:0;
}
.comp-inner{
  display:flex;gap:10px;align-items:flex-end;
  background:var(--paper2);border:1px solid var(--line2);
  border-radius:var(--r);padding:9px 12px;
  transition:border-color .15s;
}
.comp-inner:focus-within{border-color:var(--g)}
.comp-inner textarea{
  flex:1;background:transparent;border:none;
  color:var(--ink);font-family:var(--sans);
  font-size:14px;line-height:1.5;outline:none;
  resize:none;min-height:20px;max-height:100px;padding:0;
}
.comp-inner textarea::placeholder{color:var(--ink3)}
.csend{
  width:30px;height:30px;flex-shrink:0;
  background:var(--g);border:none;border-radius:var(--rsm);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:opacity .15s,transform .15s;
}
.csend:hover{opacity:.85}
.csend:active{transform:scale(.94)}
.csend:disabled{background:var(--paper3);cursor:not-allowed}
.csend svg{width:13px;height:13px;color:white}
.comp-hint{font-size:11px;color:var(--ink3);text-align:center;margin-top:8px;font-family:var(--mono)}

@media(max-width:600px){
  .rail{display:none}
  .msgs{padding:20px}
  .welcome h1{font-size:26px}
  .composer{padding:12px 16px 16px}
  .chat-header{padding:10px 16px}
}