:root{
  --bg:#0f1115; --panel:#171a21; --panel2:#1e222b; --line:#2a2f3a;
  --text:#e7eaf0; --muted:#9aa3b2; --accent:#6c8cff; --accent2:#8b5cf6;
  --good:#34d399; --bad:#f87171; --chip:#222735;
  --radius:14px; --shadow:0 8px 30px rgba(0,0,0,.35); --side:268px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
  background:var(--bg);color:var(--text);height:100vh;overflow:hidden;
  font:15px/1.5 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
}
button{cursor:pointer;font:inherit;border-radius:10px;border:1px solid var(--line);
  background:var(--panel2);color:var(--text);padding:8px 14px;transition:.15s}
button:hover{border-color:var(--accent)}
.ghost{background:transparent}
.danger{background:#2a1417;border-color:#5b2026;color:#ffb4b4}
.danger:hover{border-color:var(--bad)}
.small{padding:6px 9px;font-size:12.5px}
.icon-btn{background:transparent;border:none;color:var(--muted);font-size:20px;padding:4px 8px}
.icon-btn:hover{color:var(--text)}

.app{display:grid;grid-template-columns:var(--side) 1fr;height:100vh}
.app.collapsed{grid-template-columns:0 1fr}

/* ---- Sidebar ---- */
.sidebar{background:#13161d;border-right:1px solid var(--line);display:flex;
  flex-direction:column;min-width:0;overflow:hidden}
.app.collapsed .sidebar{display:none}
.side-head{display:flex;justify-content:space-between;align-items:center;padding:16px 14px 8px}
.brand{font-weight:600;font-size:17px;display:flex;align-items:center;gap:8px}
.logo{font-size:20px}
.newchat{margin:6px 12px 10px;padding:10px;border:1px dashed var(--line);background:transparent;
  color:var(--text);font-weight:500}
.newchat:hover{border-color:var(--accent);border-style:solid}
.sessions{flex:1;overflow-y:auto;padding:4px 8px;display:flex;flex-direction:column;gap:3px}
.sess{display:flex;align-items:center;gap:6px;padding:9px 10px;border-radius:9px;cursor:pointer;
  color:var(--muted);font-size:13.5px;border:1px solid transparent}
.sess:hover{background:var(--panel)}
.sess.active{background:var(--panel2);color:var(--text);border-color:var(--line)}
.sess .t{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sess .x{opacity:0;font-size:14px;padding:0 4px;color:var(--muted)}
.sess:hover .x{opacity:1}
.sess .x:hover{color:var(--bad)}
.side-foot{border-top:1px solid var(--line);padding:12px;display:flex;flex-direction:column;gap:8px}
.privacy-row{display:flex;gap:8px}
.privacy-row button{flex:1}
.side-note{margin:0;font-size:11.5px;color:var(--muted);line-height:1.4}
.pill{font-size:12px;padding:4px 10px;border-radius:999px;border:1px solid var(--line);align-self:flex-start}
.pill.on{color:var(--good);border-color:#1f5240;background:#0f241c}
.pill.off{color:var(--muted)}

/* ---- Main ---- */
.main{display:flex;flex-direction:column;min-width:0;height:100vh}
.topbar{display:flex;align-items:center;gap:10px;padding:12px 18px;border-bottom:1px solid var(--line)}
.topbar-title{font-weight:600}
#openSide{display:none}

.chat{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:18px;
  max-width:900px;width:100%;margin:0 auto}
.msg{display:flex}
.msg.user{justify-content:flex-end}
.bubble{max-width:80%;padding:13px 16px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line)}
.msg.user .bubble{background:linear-gradient(135deg,var(--accent),var(--accent2));border:none;color:#fff}
.msg.user .bubble img{max-width:200px;border-radius:10px;margin-bottom:8px;display:block}
.welcome .examples{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}
.chip{background:var(--chip);font-size:13px;padding:7px 12px;border-radius:999px;border:1px solid var(--line)}
.chip:hover{border-color:var(--accent)}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin-top:12px}
.card{background:var(--panel2);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px;display:flex;flex-direction:column;gap:9px;box-shadow:var(--shadow)}
.thumb-link{position:relative;display:block;border-radius:10px;overflow:hidden;cursor:pointer;border:1px solid var(--line)}
.thumb{width:100%;height:150px;object-fit:contain;background:#fff;padding:6px;display:block;transition:transform .2s}
.thumb-link:hover .thumb{transform:scale(1.04)}
.thumb-link.is-logo{background:#0d1016}
.thumb-link.is-logo .thumb{height:96px;object-fit:contain;padding:28px;background:transparent;image-rendering:auto}
.thumb-cta{position:absolute;left:0;right:0;bottom:0;text-align:center;font-size:12.5px;font-weight:600;
  color:#fff;background:linear-gradient(0deg,rgba(0,0,0,.78),rgba(0,0,0,0));padding:16px 0 7px;opacity:0;transition:opacity .15s}
.thumb-link:hover .thumb-cta{opacity:1}
.card-head{display:flex;justify-content:space-between;gap:8px;align-items:flex-start}
.card-title{font-weight:600;color:var(--text);text-decoration:none;font-size:14.5px;line-height:1.35}
.card-title:hover{color:var(--accent)}
.score{font-size:12px;color:#0b0d12;background:var(--accent);border-radius:8px;padding:3px 7px;font-weight:700;white-space:nowrap}
.meta{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--muted)}
.price{color:var(--good);font-weight:700}
.rating{color:#fbbf24}
.why{font-size:13.5px;color:#cfd6e4;background:#12151c;border-left:3px solid var(--accent2);padding:8px 10px;border-radius:8px;margin:0}
.bars{display:flex;flex-direction:column;gap:4px}
.bar{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--muted)}
.bar .track{flex:1;height:6px;background:#0d1016;border-radius:6px;overflow:hidden}
.bar .fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2))}
.bar .lbl{width:74px}
.card-actions{display:flex;gap:8px;align-items:center;margin-top:2px}
.card-actions .like.active{background:#0f241c;border-color:#1f5240;color:var(--good)}
.card-actions .dislike.active{background:#2a1417;border-color:#5b2026;color:var(--bad)}
.card-actions .view{margin-left:auto;color:#fff;text-decoration:none;font-size:13px;font-weight:600;align-self:center;
  background:linear-gradient(135deg,var(--accent),var(--accent2));padding:8px 14px;border-radius:10px}
.card-actions .view:hover{filter:brightness(1.1)}

.trace{font-size:12px;color:var(--muted);margin-top:8px;display:flex;flex-wrap:wrap;gap:6px}
.trace b{color:#c7cfe0}
.trace .t{background:#12151c;border:1px solid var(--line);padding:3px 8px;border-radius:6px}
.typing{display:inline-flex;gap:4px}
.typing span{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite}
.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.3}40%{opacity:1}}

/* ---- Composer ---- */
.composer{display:flex;gap:10px;padding:14px 24px;border-top:1px solid var(--line);
  max-width:900px;width:100%;margin:0 auto;align-items:flex-end}
.attach{display:flex;align-items:center;justify-content:center;width:44px;height:44px;
  border:1px solid var(--line);border-radius:12px;background:var(--panel);font-size:18px;cursor:pointer}
.attach:hover{border-color:var(--accent)}
.composer-mid{flex:1;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:6px 8px}
.composer-mid:focus-within{border-color:var(--accent)}
#input{width:100%;background:transparent;border:none;color:var(--text);padding:7px 6px;font:inherit}
#input:focus{outline:none}
.preview{position:relative;display:inline-block;margin:4px 4px 2px}
.preview img{max-height:64px;border-radius:8px;display:block}
.preview-x{position:absolute;top:-7px;right:-7px;width:20px;height:20px;border-radius:50%;
  background:#000;border:1px solid var(--line);color:#fff;font-size:11px;padding:0;line-height:1}
#send{background:linear-gradient(135deg,var(--accent),var(--accent2));border:none;color:#fff;
  padding:0 22px;font-weight:600;height:44px}

@media(max-width:760px){
  .app{grid-template-columns:1fr}
  .sidebar{position:fixed;z-index:40;width:var(--side);height:100vh;box-shadow:var(--shadow)}
  .app:not(.show-side) .sidebar{display:none}
  #openSide{display:inline-block}
}