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var(--line);grid-template-columns:2.25rem 1fr;gap:12px;padding:14px 0;display:grid}.path li:first-child{border-top:0}.path__num{background:var(--accent);color:#fff;border-radius:50%;place-items:center;width:2.25rem;height:2.25rem;font-weight:700;display:grid}.path__num--later{background:var(--bg);color:var(--muted);border:1px dashed var(--line-strong)}.session-list{margin:8px 0 16px;padding-left:1.2em}.meter{background:var(--line);border-radius:4px;height:8px;margin:8px 0;overflow:hidden}.meter>span{background:var(--accent);height:100%;display:block}.lib-list{margin:0;padding:0;list-style:none}.lib-item{border-top:1px solid var(--line);padding:16px 0}.lib-item:first-child{border-top:0}.lib-item a.lib-item__title{font-weight:650;font-size:var(--step-1);color:var(--ink);text-decoration:none}.lib-item a.lib-item__title:hover{color:var(--accent-ink);text-decoration:underline}.notion{max-width:var(--measure)}.notion>*+*{margin-top:.75em}.notion h2,.notion h3,.notion h4{margin-top:1.4em}.notion blockquote{border-left:3px solid var(--line-strong);margin:0;padding-left:14px}.notion .callout{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-s);gap:12px;padding:12px 14px;display:flex}.notion pre{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-s);font-size:var(--step--1);padding:12px;overflow-x:auto}.notion img{border-radius:var(--radius-s);border:1px solid var(--line);background:var(--surface);max-width:100%;height:auto}.notion figure{margin:0}.notion figcaption{font-size:var(--step--1);color:var(--muted);margin-top:4px}.notion .columns{grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:16px;display:grid}.notion details{border-left:2px solid var(--line);padding-left:12px}.notion details>summary{cursor:pointer;min-height:36px;font-weight:550}.embed-frame{border:1px solid var(--line);border-radius:var(--radius-s);background:var(--surface);width:100%}.embed-frame--video{aspect-ratio:16/9;height:auto}.link-card{border:1px solid var(--line);border-radius:var(--radius-s);background:var(--surface);flex-direction:column;gap:2px;padding:10px 14px;display:flex}.unsupported{border:1px dashed var(--warn);border-radius:var(--radius-s);background:var(--warn-soft);color:#5e3d00;font-size:var(--step--1);padding:10px 14px}.player{border:1px solid var(--line);border-radius:var(--radius-s);background:var(--surface);padding:12px}.player__row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.player__seek{accent-color:var(--accent);flex:12rem}.player__time{font-variant-numeric:tabular-nums;font-size:var(--step--1);color:var(--muted)}.site-nav__logout{border-left:1px solid var(--line);margin:0 0 0 4px;padding-left:8px;display:inline-flex}.site-nav__logout .btn{color:var(--muted);font-weight:500}.login{background:radial-gradient(60rem 28rem at 50% -8rem, var(--accent-soft), transparent 70%), var(--bg);place-items:center;min-height:calc(100dvh - 66px);padding:40px 20px 72px;display:grid}.login__card{background:var(--surface);border:1px solid var(--line);border-radius:18px;width:100%;max-width:25rem;padding:36px 32px 28px;box-shadow:0 1px 2px #1b22320a,0 12px 32px -12px #1b223224}.login__mark{background:var(--accent);color:#fff;width:48px;height:48px;font-family:var(--font-en);border-radius:12px;place-items:center;margin-bottom:20px;font-size:1.25rem;font-weight:600;display:grid}.login__title{font-size:var(--step-2);margin-bottom:4px}.login__sub{color:var(--muted);margin-bottom:20px}.login__form .field{margin:0 0 16px}.login__form .input:focus-visible{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);outline:none}.login__form .input[aria-invalid=true]{border-color:#d9a3a4}.login__error{margin:0 0 16px}.password{position:relative}.password .input{padding-right:64px}.password__toggle{min-height:32px;color:var(--accent-ink);font-size:var(--step--1);cursor:pointer;background:0 0;border:0;border-radius:6px;padding:4px 10px;font-weight:550;position:absolute;top:50%;right:6px;transform:translateY(-50%)}.password__toggle:hover{background:var(--accent-soft)}.login__hint{font-size:var(--step--1);color:var(--warn);margin:6px 0 0}.login__submit{width:100%;margin-top:4px}.login__submit:disabled{opacity:.7;cursor:progress}.login__foot{border-top:1px solid var(--line);color:var(--muted);font-size:var(--step--1);text-align:center;margin:20px 0 0;padding-top:16px}@media (max-width:760px){.home-grid{grid-template-columns:1fr}.page{padding:20px 16px 48px}.panel,.hero{padding:18px}.lesson-head,.step{padding-left:16px;padding-right:16px}.turn{grid-template-columns:1fr;gap:0}.turn__who{padding-top:8px}.site-header__inner{gap:6px;padding:8px 12px}.site-nav a{padding:6px 10px}.step-actions__inner .btn{padding-inline:12px}.login{place-items:start center;padding:24px 16px 48px}.login__card{padding:28px 20px 22px}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}