#tripnest-ai-app{
  min-height:100vh;
  background:
    radial-gradient(circle at 82% 10%, rgba(188,165,255,.28), transparent 30%),
    radial-gradient(circle at 10% 90%, rgba(255,217,172,.28), transparent 30%),
    #f8f4ef;
  color:#2b1732;
  font-family:Inter,Arial,sans-serif;
}
#tripnest-ai-app *{box-sizing:border-box}
#tripnest-ai-app .tn-shell{max-width:1500px;margin:0 auto;padding:24px}
#tripnest-ai-app .tn-topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
#tripnest-ai-app .tn-brand{font-size:24px;font-weight:900}
#tripnest-ai-app .tn-pill{background:#fff;border:1px solid rgba(43,23,50,.12);padding:10px 15px;border-radius:999px;font-weight:800}
#tripnest-ai-app .tn-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:22px;min-height:760px}
#tripnest-ai-app .tn-chat,
#tripnest-ai-app .tn-check{
  background:#fff;
  border-radius:34px;
  box-shadow:0 24px 70px rgba(43,23,50,.12);
  overflow:hidden;
}
#tripnest-ai-app .tn-chat{display:flex;flex-direction:column}
#tripnest-ai-app .tn-head{padding:30px 30px 16px}
#tripnest-ai-app .tn-head small{font-weight:900;letter-spacing:.08em;color:#8c6cff}
#tripnest-ai-app .tn-head h1{font-size:clamp(38px,5vw,72px);line-height:.96;margin:12px 0;letter-spacing:-.04em}
#tripnest-ai-app .tn-head p{color:#756b7b;font-size:17px;line-height:1.6}
#tripnest-ai-app .tn-messages{padding:18px 30px;display:flex;flex-direction:column;gap:14px;overflow:auto;flex:1;min-height:300px}
#tripnest-ai-app .tn-msg{max-width:86%;padding:15px 17px;border-radius:20px;line-height:1.55;white-space:pre-wrap}
#tripnest-ai-app .tn-msg.ai{align-self:flex-start;background:#eee8ff}
#tripnest-ai-app .tn-msg.user{align-self:flex-end;background:#2b1732;color:#fff}
#tripnest-ai-app .tn-quick{display:flex;flex-wrap:wrap;gap:8px;padding:0 30px 14px}
#tripnest-ai-app .tn-quick button{border:0;background:#bca5ff;color:#2b1732;padding:10px 14px;border-radius:999px;font-weight:800;cursor:pointer}
#tripnest-ai-app .tn-compose{margin:0 24px 24px;border:1px solid rgba(43,23,50,.15);border-radius:26px;background:#fff;padding:14px;box-shadow:0 16px 38px rgba(43,23,50,.08)}
#tripnest-ai-app .tn-compose textarea{width:100%;min-height:95px;border:0;outline:0;resize:none;font:inherit;font-size:17px;color:#2b1732}
#tripnest-ai-app .tn-row{display:flex;justify-content:space-between;align-items:center;gap:12px}
#tripnest-ai-app .tn-send{width:48px;height:48px;border-radius:50%;border:0;background:#2b1732;color:#fff;font-size:20px;cursor:pointer}
#tripnest-ai-app .tn-check{padding:34px;background:linear-gradient(160deg,#cdbdff,#b99fff)}
#tripnest-ai-app .tn-card{background:rgba(255,255,255,.28);border-radius:28px;padding:28px;height:100%;backdrop-filter:blur(10px)}
#tripnest-ai-app .tn-progress{display:flex;gap:16px;align-items:center}
#tripnest-ai-app .tn-ring{width:66px;height:66px;border-radius:50%;display:grid;place-items:center;background:#fff;font-weight:900}
#tripnest-ai-app .tn-list{margin-top:22px}
#tripnest-ai-app .tn-item{display:grid;grid-template-columns:34px 1fr;gap:12px;padding:13px 0;border-bottom:1px solid rgba(43,23,50,.1)}
#tripnest-ai-app .tn-icon{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.5);font-weight:900}
#tripnest-ai-app .tn-item.done .tn-icon{background:#2b1732;color:#fff}
#tripnest-ai-app .tn-label{font-size:12px;font-weight:900;text-transform:uppercase;opacity:.6}
#tripnest-ai-app .tn-value{font-size:17px;font-weight:800;margin-top:3px}
#tripnest-ai-app .tn-generate-wrap{margin-top:24px;background:#fff;border-radius:22px;padding:16px}
#tripnest-ai-app .tn-generate{width:100%;border:0;border-radius:999px;padding:16px;background:#2b1732;color:#fff;font-size:16px;font-weight:900;cursor:pointer}
#tripnest-ai-app .tn-generate:disabled{opacity:.4;cursor:not-allowed}
#tripnest-ai-app .tn-error{display:none;color:#a12626;background:#fff1f1;padding:10px;border-radius:12px}
#tripnest-ai-app .tn-error.show{display:block}
@media(max-width:980px){
  #tripnest-ai-app .tn-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  #tripnest-ai-app .tn-shell{padding:10px}
  #tripnest-ai-app .tn-chat,
  #tripnest-ai-app .tn-check{border-radius:24px}
  #tripnest-ai-app .tn-head{padding:24px 20px 12px}
  #tripnest-ai-app .tn-messages{padding:14px 20px}
  #tripnest-ai-app .tn-quick{padding:0 20px 12px}
  #tripnest-ai-app .tn-compose{margin:0 14px 14px}
  #tripnest-ai-app .tn-check{padding:16px}
}