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h1{letter-spacing:-.03em;font-size:clamp(28px,4vw,40px);line-height:1.12}.course-hero .lede{color:var(--ink-2);max-width:62ch;font-size:16.5px;line-height:1.6}.course-hero .meta{color:var(--muted);font-size:14px}.course-hero-side{gap:10px;display:grid}.course-hero-side .row-gap{flex-wrap:wrap;gap:10px;margin-top:6px;display:flex}.day-goal{color:var(--muted);max-width:70ch;margin-top:6px;font-size:14.5px}.row-locked{opacity:.75;align-items:center;gap:14px;padding:15px 20px;display:flex}.course-switch{flex-wrap:wrap;gap:6px;margin-top:16px;display:flex}.course-switch a{background:var(--card);box-shadow:var(--shadow-button);color:var(--ink-2);border-radius:10px;padding:8px 12px;font-size:14px;text-decoration:none}.course-switch a.on{background:var(--accent-soft);color:var(--brand-ink);box-shadow:inset 0 0 0 1px var(--accent-line)}@media 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:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--page:#0f0f15;--surface:#15151d;--paper:#16161e;--paper-2:#1f1f29;--card:#18181f;--ink:#ececf2;--ink-2:#cdcdd8;--muted:#9b9ba9;--faint:#6e6e7c;--line:#262631;--line-strong:#35353f;--accent:#6c65f5;--accent-hover:#7f79f8;--accent-soft:#7c74ff26;--summit:#fb8a3c;--summit-soft:#fb8a3c24;--night:#24232f;--accent-ink:#fff;--brand-ink:#c5c1ff;--peach:#5b4630;--lilac:#34324a;--sky:#1f3d4d;--tint-blue:#60a5fa1a;--tint-green:#4ade8017;--tint-orange:#fb923c1a;--tint-pink:#f472b61a;--tint-purple:#8b85ff1f;--tint-yellow:#facc1514;--tint-sky:#38bdf817;--step-1:#3e3b74;--step-2:#8b84f0;--ochre:#f2b35b;--ochre-soft:#f59e0b24;--danger:#f87171;--danger-soft:#f8717121;--good:#4ade80;--good-soft:#4ade801f;--mid:#f2b35b;--low:#f87171;--dot:#ffffff0f;--shadow-card:0 0 0 1px var(--line), 0 1px 2px #00000059, 0 18px 40px -24px #000000b3;--shadow-box:0 0 0 1px var(--line), 0 1px 2px #0006, 0 12px 24px -12px #0009;--shadow-button:0 1px 2px #00000073, 0 0 0 1px var(--line-strong);--shadow-shot:0 0 0 1px var(--line-strong), 0 2px 4px #0000004d, 0 30px 70px -30px #000000d9;--header-bg:#0f0f15d1;--prose-ink:#d6d6e0;--glass:#20202ab8;--overlay:#05050a80;--toast-bg:#27262f;--code-bg:#0b0b10;--wash-1:#f5cb940f;--wash-2:#8b84f01a;--wash-3:#38bdf80f;--tip-ink:#a7f3c4;--warn-ink-strong:#fdc9a0;--note-ink:#bcd4ff;--dg-bg:#131319;--dg-dot:#ffffff0d;--arrow:#4b477c;--arrow-head:#8b84f0;--accent-line:#4b4785;--summit-line:#8c4b1e;--summit-ink:#fdba74;--good-line:#23704a;--good-ring:#3fb664;--good-strong:#22c55e;--warn-ring:#f59e0b;--warn-soft:#f59e0b24;--warn-ink:#fbbf24;--warn-ink-2:#fcd34d;--bad-ring:#ef4444;--bad-ink:#fca5a5;--sheet-head:#1f1f29;--sheet-line:#30303c;--sheet-hd:#1c1c25;--tg-bg:#17212b;--tg-out:#2b5278}[data-theme=dark] .dg-here,[data-theme=dark] .hero3 .chipline b,[data-theme=dark] .pin,[data-theme=dark] .notes .k{color:var(--page)}[data-theme=dark] .btn-danger{box-shadow:0 0 0 1px #f8717159}[data-theme=dark] .keypoints{box-shadow:0 0 0 1px var(--line);background:#1a1925}[data-theme=dark] .rc-todo{stroke:#3a3a48}[data-theme=dark] .rc-here-dot,[data-theme=dark] .rc-climber .core,[data-theme=dark] .lf-packet .core{stroke:var(--page)}[data-theme=dark] .cel-toast{box-shadow:0 0 0 1px var(--line-strong), 0 18px 40px -16px #000000b3}[data-theme=dark] .cel-camp-card{box-shadow:var(--shadow-shot)}[data-theme=dark] .dg-n.t-ink,[data-theme=dark] .dg-seq-a.t-ink,[data-theme=dark] .dg-tag.t-ink,[data-theme=dark] .dg-group.t-ink{box-shadow:0 0 0 1px var(--line-strong)}[data-theme=dark] .dg-bar .tr{background:var(--line-strong)}[data-theme=dark] .dg-code{box-shadow:0 0 0 1px var(--line)}[data-theme=dark] .c-s{color:#86efac}[data-theme=dark] .c-n{color:#fdba74}[data-theme=dark] .dg-tokens .c0{background:#8b84f03d}[data-theme=dark] .dg-tokens .c1{background:#fb923c38}[data-theme=dark] .dg-tokens .c2{background:#22c55e33}[data-theme=dark] .dg-tokens .c3{background:#eab30833}[data-theme=dark] .dg-phone{box-shadow:0 0 0 1px var(--line-strong), var(--shadow-shot)}[data-theme=dark] .dg-chat.tg .dg-bub.bot{background:#182533}[data-theme=dark] .dg-chat.tg .dg-bub.user{color:#e8eef5}[data-theme=dark] .dg-notif{background:#1c1c26e6}[data-theme=dark] .shot2-img{background:#fff}[data-theme=dark] .sec.alt,[data-theme=dark] .tools3{background:var(--surface)}[data-theme=dark] .hero3:before{background:radial-gradient(60% 70% at 85% 30%,#7c74ff1f,#0000 70%),radial-gradient(50% 60% at 10% 10%,#fb8a3c0f,#0000 70%)}[data-theme=dark] .topo path{stroke:#8b84f017}[data-theme=dark] .topo.warm path{stroke:#fb8a3c14}[data-theme=dark] .lf-wire{stroke:#4b4785}[data-theme=dark] .lf-wire.dash{stroke:#3d3b5c}[data-theme=dark] .lf-node.lit,[data-theme=dark] .lf-run.busy{box-shadow:0 0 0 1.5px var(--accent-line), var(--shadow-box)}[data-theme=dark] .anat-mock .warn{color:var(--warn-ink-strong)}[data-theme=dark] .bx.big{background:linear-gradient(160deg, #1d1b33, var(--card) 60%)}[data-theme=dark] .bx .fw{background:repeating-linear-gradient(90deg,#4b4785 0 6px,#0000 6px 11px)}[data-theme=dark] .tgmock{background:var(--tg-bg)}[data-theme=dark] .tgmock .h{border-bottom-color:var(--line)}[data-theme=dark] .tgmock .u{color:var(--ink);background:#182533}[data-theme=dark] .tgmock .a{background:var(--tg-out);color:#e8eef5}[data-theme=dark] .tgmock .mem{background:var(--glass)}[data-theme=dark] .summit-cta{background:linear-gradient(180deg, #19182a, var(--card))}[data-theme=dark] .ridge .r1{fill:#1e1d33}[data-theme=dark] .ridge .r2{fill:#2b2850}[data-theme=dark] .ridge .trail{stroke:#ffffff73}[data-theme=dark] .chipq:hover:not([disabled]){background:#7c74ff38}[data-theme=dark] .tq-steps i.cur{background:var(--accent-line)}[data-theme=dark] .tq-explain.ok{color:var(--tip-ink)}[data-theme=dark] .lb div.me{box-shadow:inset 0 0 0 1px var(--accent-line)}[data-theme=dark] .theme-btn .i-moon{display:none}[data-theme=dark] .theme-btn .i-sun{display:inline-flex}[data-theme=dark] .rc-here-text{fill:var(--page)}