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.35rem;line-height:1.1}.detail .code-lg{color:var(--accent);font-weight:700;letter-spacing:.04em}.detail .lede{color:var(--text);font-size:1.05rem}.detail-grid{display:grid;grid-template-columns:1fr;gap:1.25rem 2.5rem;margin-top:1rem}@media(min-width:900px){.detail-grid{grid-template-columns:minmax(0,1fr) 320px;gap:1.25rem 3rem;align-items:start}.detail-side{position:sticky;top:1rem}}.detail-main{min-width:0}.detail-main .lede,.detail-main .course-section{max-width:90ch}.detail .facts{display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;margin:0;padding:1rem 1.25rem;background:var(--surface-2);border-radius:12px}.detail-side .facts{flex-direction:column;gap:.85rem}.detail .facts div{font-size:.9rem}.detail .facts b{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:.15rem}.detail .side-block{margin-top:1.25rem}.detail-main .course-section:first-child{margin-top:0}.detail .course-section{max-width:90ch;margin:1.25rem 0}.detail .course-section p{margin:0;color:var(--text)}.detail .detail-list{margin:0;padding-left:1.4rem}.detail .detail-list li{color:var(--text);margin:.35rem 0}.detail .detail-list li::marker{color:var(--muted)}.detail .detail-list.refs{list-style:none;padding-left:0}.detail .detail-list.refs li{color:var(--muted);font-size:.92rem;padding-left:1rem;text-indent:-1rem;margin:.5rem 0}.lect{display:inline-flex;align-items:center;gap:.4rem;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:.3rem .7rem;font-size:.86rem;margin:0 .4rem .4rem 0}.state{padding:3rem 1rem;text-align:center;color:var(--muted)}.state h1{font-family:var(--font-display);font-size:clamp(1.4rem,3vw,1.9rem);color:var(--text);margin:0 0 .4rem}.spinner{width:26px;height:26px;border-radius:50%;border:3px solid var(--border);border-top-color:var(--accent);animation:spin .8s linear infinite;margin:0 auto 1rem}@keyframes spin{to{transform:rotate(360deg)}}.retry{margin-top:1rem;font:inherit;font-weight:600;cursor:pointer;background:var(--brand);color:var(--brand-ink);border:0;border-radius:999px;padding:.5rem 1.1rem}footer{border-top:1px solid var(--border);background:var(--surface);color:var(--muted);font-size:.85rem;padding:1.25rem clamp(1rem,4vw,3rem);text-align:center}footer a{color:var(--accent);font-weight:600}.bot-launcher{position:fixed;right:clamp(.75rem,3vw,1.5rem);bottom:clamp(.75rem,3vw,1.5rem);z-index:90;display:inline-flex;align-items:center;gap:.5rem;min-height:48px;padding:0 1rem 0 .85rem;border:0;border-radius:999px;background:var(--brand);color:var(--brand-ink);cursor:pointer;font:inherit;font-weight:600;box-shadow:0 6px 20px #00000047}.bot-launcher:hover{filter:brightness(1.06)}:root[data-theme=contrast] .bot-launcher{border:2px solid var(--brand-ink)}.bot-panel{position:fixed;right:clamp(.5rem,3vw,1.5rem);bottom:clamp(.5rem,3vw,1.5rem);z-index:95;width:min(380px,calc(100vw - 1rem));height:min(560px,calc(100vh - 1.5rem));display:flex;flex-direction:column;overflow:hidden;background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:0 12px 40px #00000059}.bot-head{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.7rem .9rem;background:var(--brand);color:var(--brand-ink)}.bot-title{font-family:var(--font-display);font-weight:700;font-size:1.05rem}.bot-close{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border:0;background:transparent;color:var(--brand-ink);cursor:pointer;border-radius:999px}.bot-close:hover{background:#ffffff2e}.bot-log{flex:1;overflow-y:auto;padding:1rem .9rem;display:flex;flex-direction:column;gap:.6rem}.bot-msg{display:flex}.bot-msg.user{justify-content:flex-end}.bot-bubble{max-width:85%;padding:.55rem .8rem;border-radius:14px;font-size:.92rem;line-height:1.4;background:var(--surface-2);color:var(--text)}.bot-msg.user .bot-bubble{background:var(--brand);color:var(--brand-ink);border-bottom-right-radius:4px}.bot-msg.model .bot-bubble{border-bottom-left-radius:4px}.bot-bubble p{margin:0 0 .4rem}.bot-bubble p:last-child{margin:0}.bot-bubble ul{margin:.2rem 0;padding-left:1.2rem}.bot-bubble li{margin:.15rem 0}.bot-typing{display:inline-flex;gap:.25rem}.bot-typing span{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:bot-blink 1.2s infinite both}.bot-typing span:nth-child(2){animation-delay:.2s}.bot-typing span:nth-child(3){animation-delay:.4s}@keyframes bot-blink{0%,80%,to{opacity:.3}40%{opacity:1}}.bot-input{display:flex;align-items:flex-end;gap:.5rem;padding:.6rem;border-top:1px solid var(--border)}.bot-input textarea{flex:1;resize:none;max-height:96px;font:inherit;font-size:.92rem;padding:.55rem .7rem;border:1px solid var(--border);border-radius:12px;background:var(--surface-2);color:var(--text)}.bot-input textarea::placeholder{color:var(--muted)}.bot-send{width:44px;height:44px;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;background:var(--brand);color:var(--brand-ink);cursor:pointer}.bot-send:disabled{opacity:.5;cursor:default}.tooltip{position:fixed;z-index:1000;width:max-content;max-width:min(18rem,calc(100vw - 16px));padding:4px 8px;border-radius:8px;background:var(--text);color:var(--bg);font:600 .875rem/1.35 var(--font-body);box-shadow:var(--shadow);animation:tooltip-in .15s ease-out}@keyframes tooltip-in{0%{opacity:0}to{opacity:1}}