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var(--mono);letter-spacing:.04em;color:var(--ink-3);white-space:nowrap}.course-topbar-bar{background:var(--paper-2);border-radius:2px;width:84px;height:4px;overflow:hidden}.course-topbar-fill{background:var(--blue);border-radius:2px;height:100%}@media (max-width:820px){.course-topbar-inner{padding:0 20px}.course-topbar-progress{display:none}}.course-shell{grid-template-columns:280px 1fr 260px;align-items:start;gap:0;max-width:1400px;margin:0 auto;display:grid}.course-sidebar{border-right:1px solid var(--line);top:calc(76px + var(--course-topbar-h));height:calc(100vh - 76px - var(--course-topbar-h));padding:36px 22px 48px 40px;position:sticky;overflow-y:auto}.course-sidebar-label{font:600 10.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:10px;padding:0 10px}.course-phase-divider{align-items:center;gap:8px;margin:22px 0 12px;padding:0 10px;display:flex}.course-phase-divider:first-of-type{margin-top:4px}.course-phase-badge{font:600 10px var(--mono);letter-spacing:.04em;white-space:nowrap;border-radius:999px;padding:3px 9px}.course-phase-badge-1{background:var(--blue-wash);color:var(--blue-deep)}.course-phase-badge-2{background:var(--paper-2);color:var(--ink-3)}.course-phase-line{background:var(--line);flex:1;height:1px}.course-mod-row{color:var(--ink-2);border-radius:8px;align-items:flex-start;gap:10px;margin-bottom:2px;padding:8px 12px;font-size:13px;line-height:1.45;text-decoration:none;transition:background .12s;display:flex}a.course-mod-row:hover{background:var(--paper)}.course-mod-active{background:var(--blue-wash);color:var(--blue-deep);font-weight:600}.course-mod-done{color:var(--ink-2)}.course-mod-locked{color:var(--ink-4,var(--ink-3));opacity:.62}.course-mod-num{font:600 10px var(--mono);color:var(--ink-3);min-width:20px;padding-top:1px}.course-mod-active .course-mod-num{color:var(--blue)}.course-mod-done .course-mod-num{color:var(--good)}.course-mod-title{flex:1}.course-mod-check{color:var(--good);padding-top:1px;font-size:10px}.course-main{min-width:0;max-width:760px;padding:48px 56px 84px}.course-toc{top:calc(76px + var(--course-topbar-h) + 20px);min-width:0;max-height:calc(100vh - 76px - var(--course-topbar-h) - 20px);padding:48px 28px 32px 16px;position:sticky;overflow-y:auto}@media (max-width:1180px){.course-shell{grid-template-columns:260px 1fr}.course-toc{display:none}}@media (max-width:820px){.course-shell{grid-template-columns:1fr}.course-sidebar{display:none}.course-main{max-width:none;padding:32px 24px 64px}}.course-mod-meta{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px;display:flex}.course-meta-pill{font:600 11px var(--mono);border-radius:999px;padding:3px 10px}.course-meta-pill-phase{background:var(--blue-wash);color:var(--blue-deep)}.course-meta-pill-module{background:var(--paper-2);color:var(--ink-2)}.course-meta-time{font:500 12px var(--mono);color:var(--ink-3);align-items:center;gap:5px;margin-left:auto;display:flex}.course-meta-time svg{opacity:.6}.course-title{font-family:var(--display);letter-spacing:-.025em;color:var(--ink);text-wrap:balance;margin-bottom:18px;font-size:clamp(28px,3.6vw,40px);font-weight:700;line-height:1.08}.course-intro{color:var(--ink-2);border-left:3px solid var(--blue);text-wrap:pretty;margin-bottom:40px;padding-left:18px;font-size:17.5px;line-height:1.65}.course-main .prose{margin-top:0}.course-main .prose h2{font-family:var(--sans);letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3);background:0 0;border:0;border-radius:0;align-items:center;gap:10px;margin:44px -4px 18px;padding:0 4px;font-size:11px;font-weight:600;display:flex}.course-main .prose h2:first-child{margin-top:0}.course-main .prose h2:after{content:"";background:var(--line);flex:1;height:1px}.course-main .mdx-callout{margin:26px 0}.mdx-exercise{border:1px solid var(--line);border-radius:var(--course-r-lg);margin:10px 0 34px;overflow:hidden}.mdx-exercise-head{background:var(--paper);border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:10px;padding:14px 22px;display:flex}.mdx-exercise-badge{font:700 11px var(--mono);background:var(--blue-wash);color:var(--blue-deep);border-radius:999px;padding:3px 10px}.mdx-exercise-title{font:600 14.5px var(--sans);color:var(--ink)}.mdx-exercise-time{font:500 12px var(--mono);color:var(--ink-3);margin-left:auto}.mdx-exercise-body{padding:20px 22px 8px}.mdx-exercise-body p{color:var(--ink-2);margin:0 0 18px;font-size:14.5px;line-height:1.65}.mdx-exercise-body ol{counter-reset:mdx-ex;margin:0 0 18px;padding:0;list-style:none}.mdx-exercise-body ol li{counter-increment:mdx-ex;border-top:1px solid var(--line);color:var(--ink-2);align-items:flex-start;gap:13px;padding:13px 0;font-size:14px;line-height:1.55;display:flex}.mdx-exercise-body ol li:first-child{border-top:none}.mdx-exercise-body ol 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var(--line);flex-wrap:wrap;align-items:center;gap:14px;margin-top:52px;padding:26px 0 0;display:flex}.course-nav-btn{font:600 13.5px var(--sans);border-radius:10px;align-items:center;gap:7px;padding:10px 18px;text-decoration:none;transition:transform .15s,box-shadow .15s,background .15s;display:inline-flex}.course-nav-btn-prev{color:var(--ink-2);border:1.5px solid var(--line-2);background:#fff}.course-nav-btn-prev:hover{border-color:var(--ink);color:var(--ink)}.course-nav-btn-next{background:var(--blue);color:#fff;box-shadow:0 10px 24px -12px #1b4dff99}.course-nav-btn-next:hover{background:var(--blue-deep)}.course-nav-btn-locked{background:var(--paper-2);color:var(--ink-3);font:600 12.5px var(--mono);cursor:default;border-radius:10px;align-items:center;padding:10px 16px;display:inline-flex}.course-nav-preview{text-align:right;margin-left:auto}.course-nav-preview-up{font:600 10.5px var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--ink-3);margin-bottom:2px}.course-nav-preview-title{color:var(--ink-2);max-width:320px;font-size:13px}@media (max-width:640px){.course-nav-footer{flex-direction:column;align-items:stretch}.course-nav-preview{text-align:left;order:3;margin-left:0}.course-nav-btn-next,.course-nav-btn-locked{order:2;justify-content:center}}.course-hero-eyebrow{align-items:center;gap:7px;display:inline-flex}.course-hero-eyebrow .dot{background:var(--blue);border-radius:50%;flex-shrink:0;width:5px;height:5px;position:relative}.course-hero-ctas{flex-wrap:wrap;align-items:center;gap:12px;margin-top:30px;display:flex}.course-hero2{padding-bottom:8px;position:relative;overflow:hidden}.course-hero2-inner{z-index:1;text-align:center;max-width:900px;margin:0 auto;padding:100px 0 72px;position:relative}.course-hero2-title{font-family:var(--display);letter-spacing:-.03em;color:var(--ink);text-wrap:balance;margin:20px 0 22px;font-size:clamp(36px,5.6vw,62px);font-weight:700;line-height:1.08}.course-hero2-lead{max-width:660px;margin:0 auto}.course-hero2-ctas{justify-content:center;margin-top:32px}.course-hero2-meta{font:500 12.5px var(--mono);letter-spacing:.02em;color:var(--ink-3);margin-top:24px}.course-orbit{pointer-events:none;z-index:0;position:absolute;inset:0}.course-orbit-ring{--ring-dir:1;animation:course-orbit-spin var(--ring-dur) linear infinite;position:absolute;top:50%;left:50%}.course-orbit-ring--outer{--ring-dur:46s;--ring-radius:clamp(280px, 29vw, 430px);width:clamp(560px,58vw,860px);height:clamp(560px,58vw,860px);margin:calc(clamp(560px,58vw,860px)/-2)}.course-orbit-ring--inner{--ring-dir:-1;--ring-dur:30s;--ring-radius:clamp(150px, 16vw, 230px);width:clamp(300px,32vw,460px);height:clamp(300px,32vw,460px);margin:calc(clamp(300px,32vw,460px)/-2)}.course-orbit-ring:before{content:"";border:1px dashed var(--line-2);opacity:.5;border-radius:50%;position:absolute;inset:0}.course-orbit-ring--inner:before{opacity:.35}.course-orbit-planet{width:44px;height:44px;transform:rotate(var(--angle)) translateX(var(--ring-radius));margin:-22px;position:absolute;top:50%;left:50%}.course-orbit-planet--sm{width:36px;height:36px;margin:-18px}.course-orbit-planet-inner{border:1px solid var(--line);width:100%;height:100%;color:var(--ink-2);transform:rotate(calc(-1 * var(--angle)));animation:course-orbit-spin-reverse var(--ring-dur) linear infinite;background:#fff;border-radius:50%;justify-content:center;align-items:center;display:flex;box-shadow:0 10px 26px -14px #0f172a38}@keyframes course-orbit-spin{to{transform:rotate(calc(var(--ring-dir) * 360deg))}}@keyframes course-orbit-spin-reverse{0%{transform:rotate(calc(-1 * var(--angle)))}to{transform:rotate(calc(-1 * var(--angle) - var(--ring-dir) * 360deg))}}@media (prefers-reduced-motion:reduce){.course-orbit-ring,.course-orbit-planet-inner{animation:none}}.course-orbit.is-paused .course-orbit-ring,.course-orbit.is-paused .course-orbit-planet-inner{animation-play-state:paused}@media (max-width:900px){.course-orbit{display:none}}.course-chapters-section{border-top:1px solid var(--line)}.course-chapters-inner{max-width:740px;margin:0 auto;padding:60px 0 12px}.course-steps{margin-top:26px;position:relative}.course-steps:before{content:"";background:var(--line);width:1px;position:absolute;top:8px;bottom:8px;left:23px}.course-step{border-radius:14px;align-items:flex-start;gap:20px;margin:0 -14px;padding:18px 14px;text-decoration:none;transition:background .15s;display:flex;position:relative}a.course-step:hover{background:var(--paper)}a.course-step:hover .course-step-marker{border-color:var(--blue);background:#fff}a.course-step:hover .course-step-arrow{opacity:1;transform:translate(2px)}.course-step.is-locked{opacity:.55;cursor:default}.course-step-marker{z-index:1;border:1.5px solid var(--line-2);width:46px;height:46px;font:700 14px var(--mono);color:var(--ink-3);background:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;transition:border-color .15s,color .15s;display:flex;position:relative}.course-step.is-live .course-step-marker{color:var(--blue);border-color:var(--blue-wash-2)}.course-step-body{flex:1;min-width:0;padding-top:4px}.course-step-title-row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.course-step-title{font-family:var(--display);color:var(--ink);font-size:1.05rem;font-weight:700;line-height:1.3}.course-step-desc{color:var(--ink-2);max-width:520px;margin-top:6px;font-size:13.5px;line-height:1.55}.course-step-tag{font:600 10px var(--mono);letter-spacing:.05em;text-transform:uppercase;background:var(--paper-2);color:var(--ink-3);border:1px solid var(--line);white-space:nowrap;border-radius:999px;padding:2px 9px}.course-step-tag-live{background:var(--blue-wash);color:var(--blue-deep);border-color:var(--blue-wash-2)}.course-step-arrow{color:var(--blue);opacity:0;flex-shrink:0;margin-top:15px;transition:opacity .15s,transform .15s}@media (max-width:640px){.course-step-desc{max-width:none}.course-step-arrow{display:none}}.course-cta2-section{border-top:1px solid var(--line)}.course-cta2{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;max-width:900px;margin:0 auto;padding:52px 0 88px;display:flex}.course-cta2-title{font-family:var(--display);color:var(--ink);margin-bottom:6px;font-size:1.25rem;font-weight:700}.course-cta2-desc{color:var(--ink-2);max-width:440px;font-size:14px;line-height:1.55}