:root{--bg:#060a09;--shell:#0b110f;--panel:#0f1614;--panel-2:#131b18;--line:hsla(0,0%,100%,.07);--line-teal:rgba(45,224,192,.22);--ink:#e8f0ee;--ink-soft:#8a9794;--teal:#2de0c0;--teal-deep:#18b89e;--teal-glow:rgba(45,224,192,.18);--radius:16px}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--ink);min-height:100vh;justify-content:center}.shell,body{display:flex}.shell{width:100%;max-width:760px;height:100vh;height:100dvh;flex-direction:column;background:var(--shell)}@media (min-width:800px){.shell{height:92vh;margin:4vh 0;border-radius:var(--radius);border:1px solid var(--line);box-shadow:0 30px 80px rgba(0,0,0,.55);overflow:hidden}}.header{background:linear-gradient(180deg,#0d1513,#0a100e);border-bottom:1px solid var(--line);padding:22px 26px;position:relative}.header:after{content:"";position:absolute;left:0;bottom:-1px;height:1px;width:100%;background:linear-gradient(90deg,transparent,var(--teal),transparent);opacity:.5}.header h1{font-family:Bricolage Grotesque,Inter,sans-serif;font-weight:700;font-size:1.5rem;letter-spacing:-.02em;margin:0 0 6px;color:#fff}.header p{margin:0;font-size:.86rem;line-height:1.5;color:var(--ink-soft)}.thread{flex:1 1;overflow-y:auto;padding:22px;display:flex;flex-direction:column;gap:14px;scrollbar-width:thin;scrollbar-color:hsla(0,0%,100%,.12) transparent}.thread::-webkit-scrollbar{width:8px}.thread::-webkit-scrollbar-thumb{background:hsla(0,0%,100%,.12);border-radius:8px}.bubble{max-width:80%;padding:12px 15px;border-radius:14px;font-size:.94rem;line-height:1.5;white-space:pre-wrap;word-wrap:break-word}.bubble.bot{align-self:flex-start;background:var(--panel-2);border:1px solid var(--line);color:var(--ink);border-bottom-left-radius:4px}.bubble.user{align-self:flex-end;background:linear-gradient(135deg,var(--teal),var(--teal-deep));color:#04201b;font-weight:500;border-bottom-right-radius:4px}.typing{align-self:flex-start;display:flex;gap:4px;padding:6px 4px}.typing span{width:7px;height:7px;border-radius:50%;background:var(--teal);opacity:.5;animation:blink 1.2s infinite both}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.25}40%{opacity:1}}.courses{align-self:flex-start;width:100%;display:flex;flex-direction:column;gap:10px}.course{border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:var(--panel);transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease}.course:hover{transform:translateY(-1px);border-color:var(--line-teal);box-shadow:0 10px 26px rgba(0,0,0,.4)}.course.sponsored{border-color:var(--line-teal);background:linear-gradient(180deg,rgba(45,224,192,.07),var(--panel) 70%);box-shadow:0 0 0 1px rgba(45,224,192,.06),0 0 24px -10px var(--teal-glow)}.course-top{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:4px}.course h3{font-family:Bricolage Grotesque,Inter,sans-serif;font-size:1.02rem;margin:0;letter-spacing:-.01em;color:#fff}.tag{font-size:.66rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:3px 9px;border-radius:999px}.tag.gold{background:var(--teal-glow);color:var(--teal);border:1px solid var(--line-teal)}.tag.mode{background:hsla(0,0%,100%,.05);color:var(--ink-soft);border:1px solid var(--line)}.course .provider{font-size:.8rem;color:var(--teal-deep);margin:0 0 6px;font-weight:500}.course .desc{font-size:.86rem;line-height:1.45;margin:0 0 10px;color:var(--ink-soft)}.course a.cta{display:inline-block;font-size:.84rem;font-weight:600;color:var(--teal);text-decoration:none;border-bottom:2px solid var(--teal-deep);padding-bottom:1px;transition:color .12s ease}.course a.cta:hover{color:#fff}.composer{border-top:1px solid var(--line);padding:14px 16px;display:flex;gap:10px;background:var(--shell)}.composer textarea{flex:1 1;resize:none;border:1px solid var(--line);border-radius:12px;padding:12px 14px;font:inherit;font-size:.94rem;outline:none;max-height:120px;background:var(--panel);color:var(--ink)}.composer textarea::placeholder{color:#586460}.composer textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(45,224,192,.12)}.composer button{border:0;background:linear-gradient(135deg,var(--teal),var(--teal-deep));color:#04201b;font-weight:700;font-size:.92rem;padding:0 22px;border-radius:12px;cursor:pointer}.composer button:disabled{opacity:.4;cursor:default}@media (prefers-reduced-motion:reduce){*,:after,:before{animation:none!important;transition:none!important}}.course .ministore{margin-top:14px}.ministore{align-self:stretch;display:flex;align-items:center;gap:14px;text-decoration:none;padding:16px 18px;border-radius:14px;background:linear-gradient(135deg,rgba(45,224,192,.16),rgba(45,224,192,.04));border:1px solid var(--line-teal);box-shadow:0 0 30px -12px var(--teal-glow);transition:transform .12s ease,box-shadow .12s ease}.ministore:hover{transform:translateY(-1px);box-shadow:0 0 38px -8px var(--teal-glow)}.ministore-icon{font-size:1.6rem;line-height:1}.ministore-text{display:flex;flex-direction:column;gap:2px;flex:1 1}.ministore-text strong{font-family:Bricolage Grotesque,Inter,sans-serif;color:#fff;font-size:1rem}.ministore-text small{color:var(--ink-soft);font-size:.82rem}.ministore-arrow{color:var(--teal);font-size:1.3rem;font-weight:700}