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0;transform:translateY(104%)}.sidebar.open{transform:none}.learning-course-app .sidebar{border-width:0 1px 0 0;border-radius:0 16px 16px 0;width:min(340px,88vw);height:100dvh;inset:0 auto 0 0;transform:translate(-104%)}.learning-course-app .sidebar.open{transform:none}}@media (width<=620px){.course-topbar .course-contents-toggle{width:44px;padding-inline:8px}.course-topbar .course-contents-toggle [data-sidebar-toggle-label]{clip:rect(0,0,0,0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}}.library-header nav a[aria-current=page]{color:var(--accent)}.timeline-body{--timeline-top:66px;max-width:1060px}.timeline-intro{max-width:62ch;color:var(--ink3);font:15px/1.6 var(--sans);margin:14px 0 0}.timeline-controls{top:var(--timeline-top);z-index:20;max-height:calc(100dvh - var(--timeline-top) - 16px);border:1px solid var(--line);background:var(--bg2);box-shadow:var(--shadow);border-radius:12px;gap:14px;margin:30px -12px 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var(--line);background:var(--bg);box-shadow:var(--shadow);cursor:pointer;border-radius:10px;padding:16px 18px;transition:border-color .15s}.timeline-event article:hover{border-color:var(--line2)}.timeline-event details[open]{cursor:auto}.timeline-meta{flex-wrap:wrap;align-items:center;gap:6px 10px;margin:0;display:flex}.timeline-meta time{color:var(--ink3);font:11.5px var(--mono)}.timeline-tag{background:var(--bg3);color:var(--ink3);border-radius:6px;padding:2px 8px;font-size:11px}.timeline-event h3{color:var(--ink);font:500 18px/1.3 var(--serif);margin:6px 0 4px}.timeline-hook{color:var(--ink2);font:14.5px/1.55 var(--sans);margin:0}.timeline-event details{background:0 0;border:0;border-radius:0;max-width:none;margin:10px 0 0}.timeline-event summary{width:fit-content;min-height:32px;color:var(--accent);cursor:pointer;align-items:center;padding:0;font-size:13px;font-weight:600;display:inline-flex}.timeline-event details[open] summary{margin-bottom:4px}.timeline-event h4{color:var(--ink3);font:600 11px var(--mono);letter-spacing:.04em;margin:14px 0 4px}.timeline-event details p{max-width:70ch;color:var(--ink);font:15px/1.65 var(--sans);margin:0}.timeline-why{border-left:3px solid var(--accent-line);margin-top:14px;padding:2px 0 2px 14px}.timeline-why h4{margin-top:0}.timeline-links{gap:4px;margin:0;padding:0;list-style:none;display:grid}.timeline-links a{min-height:32px;color:var(--accent);flex-wrap:wrap;align-items:baseline;gap:2px 8px;padding:4px 0;font-size:14px;text-decoration:none;display:inline-flex}.timeline-links a:hover{text-decoration:underline}.timeline-links a span{color:var(--ink4);font:11px var(--mono)}.timeline-further{margin-top:12px!important;font-size:13.5px!important}.timeline-further a{color:var(--accent)}.timeline-untaught{color:var(--ink4)!important;font-size:13px!important}.timeline-empty{color:var(--ink3);margin:20px 0}.commands-body .timeline-layout{grid-template-columns:170px minmax(0,1fr)}.commands-body .timeline-intro+.timeline-intro{margin-top:10px}.command-inline-link{color:var(--accent)}.command-card h3 code{font:600 17px var(--mono);color:var(--ink);background:0 0;padding:0}.command-stands{color:var(--ink3);font:400 15px var(--sans)}.command-also{color:var(--ink3);margin:0 0 4px;font-size:13px}.command-also code{font:12.5px var(--mono)}.command-privilege-some{background:var(--warn-bg);color:var(--warn)}.command-privilege-admin{background:var(--bad-bg);color:var(--bad)}.command-platform-tag.command-equivalent,.command-platform-tag.command-none{color:var(--ink4)}.command-forms{grid-template-columns:minmax(0,max-content) minmax(0,1fr);gap:6px 14px;margin:0;display:grid}.command-forms dt{overflow-wrap:anywhere;min-width:0}.command-forms dt code{font:13px var(--mono)}.command-forms dd,.command-platforms dd{color:var(--ink);font:14.5px/1.6 var(--sans);margin:0}.command-platforms{gap:8px;margin:0;display:grid}.command-platforms>div{border:1px solid var(--line);border-radius:8px;padding:8px 12px}.command-platforms dt{color:var(--ink2);font:600 13px var(--sans);flex-wrap:wrap;align-items:baseline;gap:4px 10px;display:flex}.command-status{color:var(--ink3);font:400 11.5px var(--mono)}.command-platforms>div[data-platform=windows]{border-style:dashed}.command-platforms>div[data-platform=windows] dd{color:var(--ink3);font-size:13.5px}body[data-platform-focus~=linux] [data-platform=linux],body[data-platform-focus~=macos] [data-platform=macos],body[data-platform-focus~=windows] [data-platform=windows]{border-color:var(--accent-line);background:var(--accent-bg);color:var(--accent)}@media (width<=620px){.command-forms{grid-template-columns:minmax(0,1fr);gap:2px}.command-forms dd{margin-bottom:8px}}@media (width<=760px){.commands-body .timeline-layout{grid-template-columns:minmax(0,1fr)}}@media (width<=620px){.timeline-body{--timeline-top:58px}}@media 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900;font-display:swap}:root{color-scheme:light;--t-serif:"Source Serif 4", Georgia, serif;--t-sans:"Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;--t-mono:ui-monospace, "SF Mono", Menlo, Consolas, 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