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.initial{font-size:var(--size-h3);color:var(--dik-white);background:var(--dik-gray-strong);place-items:center;width:100%;height:100%;display:grid}.bubble-wrap{gap:2px;min-width:0;display:grid}.speaker{font-size:var(--size-floor);color:var(--dik-navy);font-weight:700}.speaker-role{color:var(--dik-text-sub);margin-left:8px;font-weight:400}.bubble{background:var(--dik-white);border:1px solid var(--dik-line-light);border-radius:4px 14px 14px;max-width:46em;margin:0;padding:10px 16px}.talk-line.me .bubble{background:var(--dik-blue-tint);border-color:var(--dik-blue-light);border-radius:14px 4px 14px 14px}.talk-line.who-luca .bubble{border-color:var(--dik-accent)}@media (prefers-reduced-motion:no-preference){.talk-line{animation:.35s both talk-in}.talk-line:nth-child(2){animation-delay:80ms}.talk-line:nth-child(3){animation-delay:.16s}.talk-line:nth-child(4){animation-delay:.24s}.talk-line:nth-child(5){animation-delay:.32s}.talk-line:nth-child(n+6){animation-delay:.4s}}@keyframes talk-in{0%{transform:translateY(6px)}to{transform:none}}.slides{border:1px solid var(--dik-line-light);outline-offset:4px;border-radius:10px;margin:0 0 24px;padding:16px}.slide-frame{cursor:pointer;background:var(--dik-white);border:1px solid var(--dik-line-light);border-radius:6px;position:relative;overflow:hidden}.slide-frame img{width:100%;height:auto;display:block}.slide-count{font-size:var(--size-floor);background:var(--dik-navy);color:var(--dik-white);border-radius:3px;padding:0 10px;position:absolute;bottom:8px;right:10px}.slide-line{grid-template-columns:64px minmax(0,1fr);align-items:start;gap:12px;margin-top:14px;display:grid}.slide-line.me{grid-template-columns:minmax(0,1fr) 64px}.slide-line.me .avatar{order:2}.slide-line .bubble{font-size:var(--size-h3)}.slide-nav{justify-content:space-between;align-items:center;gap:12px;margin-top:14px;display:flex}.slide-nav .btn:disabled{visibility:hidden}.slide-dots{flex-wrap:wrap;justify-content:center;gap:6px;display:flex}.slide-dots span{background:var(--dik-line-light);border-radius:50%;width:10px;height:10px}.slide-dots span.seen{background:var(--dik-blue-light)}.slide-dots span.on{background:var(--dik-accent)}.drill{border:1px solid var(--dik-accent);border-radius:10px;gap:14px;margin:0 0 24px;padding:18px 20px;display:grid}.drill-head{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.drill-head h2{font-size:var(--size-h3);color:var(--dik-navy);margin:0}.drill-count{font-size:var(--size-floor);color:var(--dik-text-sub);font-variant-numeric:tabular-nums}.drill-progress{background:var(--dik-gray-fill);border-radius:4px;height:8px;overflow:hidden}.drill-progress>div{background:var(--dik-accent);height:100%;transition:width .3s}.drill-prompt{font-size:var(--size-h3);color:var(--dik-text-strong);margin:0}.drill-code{background:var(--dik-navy);color:var(--dik-white);border-radius:6px;margin:0;padding:12px 16px;overflow-x:auto}.drill-code code{color:inherit;font-size:var(--size-body);background:0 0}.taskmgr{border:1px solid var(--dik-line-light);border-radius:6px;gap:8px;padding:12px 16px;display:grid}.tm-row{font-size:var(--size-floor);grid-template-columns:7em minmax(0,1fr) 3.5em;align-items:center;gap:10px;display:grid}.tm-bar{background:var(--dik-gray-fill);border-radius:3px;height:16px;overflow:hidden}.tm-bar>div{background:var(--dik-gray-strong);height:100%}.tm-bar>div.hot{background:var(--dik-accent)}.tm-val{text-align:right;font-variant-numeric:tabular-nums}.drill-choices{flex-wrap:wrap;gap:10px;display:flex}.choice{font:inherit;font-size:var(--size-body);border:1px solid var(--dik-line);background:var(--dik-white);color:var(--dik-text);cursor:pointer;border-radius:8px;padding:10px 20px}.choice:hover:not(:disabled){border-color:var(--dik-accent)}.choice.right{background:var(--dik-accent);border-color:var(--dik-accent);color:var(--dik-white)}.choice.wrong{background:var(--dik-gray-fill);color:var(--dik-text-sub)}.choice:disabled{cursor:default}.drill-clear{justify-items:start;gap:8px;display:grid}.drill-clear-mark{font-size:var(--size-num);color:var(--dik-accent);font-weight:700}details.lecture>summary{cursor:pointer;font-size:var(--size-body);color:var(--dik-accent)}.avatar img[src*=luca]{transform-origin:50%;object-position:50% 50%;transform:scale(1.05)}.course-intro{margin:0 0 10px}.course-intro>summary{cursor:pointer;font-size:var(--size-floor);color:var(--dik-accent);padding:4px 0}.course-intro[open]>summary{margin-bottom:6px}.drill-choices .choice{text-align:center;flex:200px;display:block}.fix-fab{right:20px;bottom:calc(20px + env(safe-area-inset-bottom,0px));z-index:20;background:var(--dik-navy);color:var(--dik-white);font-size:var(--size-floor);border:1px solid var(--dik-navy);border-radius:24px;padding:10px 18px;text-decoration:none;position:fixed}.fix-fab:hover{background:var(--dik-accent);border-color:var(--dik-accent)}.fix-row{gap:6px;padding:14px 18px;display:grid}.fix-top{flex-wrap:wrap;align-items:center;gap:8px 14px;display:flex}.chip.fix-open{border-color:var(--dik-navy);color:var(--dik-navy)}.chip.fix-issued,.chip.fix-pr{border-color:var(--dik-accent);color:var(--dik-accent)}.chip.fix-done{background:var(--dik-accent);border-color:var(--dik-accent);color:var(--dik-white)}.chip.fix-closed{border-color:var(--dik-line);color:var(--dik-text-sub)}button.qdot{font:inherit;font-size:var(--size-floor);cursor:pointer;padding:0}button.qdot:disabled{cursor:default}.unit-explain{border-top:1px solid var(--dik-line-light);padding:10px 0}.unit-explain>summary{cursor:pointer;color:var(--dik-navy);font-weight:700}.unit-explain>summary .note{font-weight:400}.unit-explain[open]>summary{margin-bottom:8px}.related-list{gap:8px;margin:0;padding:0;list-style:none;display:grid}.related-item{border:1px solid var(--dik-line-light);color:var(--dik-text);border-radius:6px;grid-template-columns:24px minmax(0,1fr) auto;align-items:center;gap:12px;padding:10px 14px;text-decoration:none;display:grid}.related-item:hover{border-color:var(--dik-accent)}.related-body{gap:2px;min-width:0;display:grid}.related-where{font-size:var(--size-floor);color:var(--dik-text-sub)}.related-title{color:var(--dik-text-strong)}.related-mine{font-size:var(--size-floor);color:var(--dik-text-sub);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}