html[data-course-page],[data-course]{--navy:#08132f;--accent:#2f63ff;--accent-strong:#1f4ce0;--accent-bright:#6b9bff;--accent-soft:#eef3ff;--accent-ink:#16388f;--accent-pale:#cddcff;--navy-2:#0e1c40;--navy-3:#13244d;--stage:#0b1735;--panel:radial-gradient(120% 120% at 78% 8%, #122043 0%, #08132f 62%);--paper:#eef2f7;--paper-deep:#e3e9f2;--card:#fff;--text:#202124;--heading:#08132f;--muted:#515b72;--link:#1f4ce0;--line:#d5dce7;--line-strong:#b9c3d3;--on-dark-head:#eef2f8;--on-dark-body:#cdd5e3;--on-dark-muted:#9da8bf;--on-dark-strong:#fff;--dark-line:#ffffff1f;--dark-line-strong:#ffffff47;--ctl-bg:#1b2d5c;--ctl-bg-hover:#243a72;--ctl-line:#cdd5e385;--ctl-line-hover:#cdd5e3d9;--sel-bg:#6b9bff33;--sel-edge:#6b9bff;--up:#26a69a;--down:#ef5350;--up-ink:#0f7b6c;--down-ink:#b42318;--sell:#c9302c;--sell-hover:#b0231f;--err-on-dark:#ffb4b1;--ok-ink:#1f7a4d;--ok-soft:#e7f5ee;--ok-body:#0f3d26;--bad-ink:#9f1d1d;--bad-soft:#fdecec;--bad-body:#4a1010;--warn-ink:#7a4d00;--warn-soft:#fdf3dc;--warn-edge:#e0a43a;--font:var(--et-font), Helvetica, Arial, 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sans-serif;--t-body:1.0625rem;--lh-body:1.625rem;--t-lead:1.1875rem;--lh-lead:1.875rem;--t-h1:2.125rem;--lh-h1:2.5rem;--t-h2:1.75rem;--lh-h2:2.125rem;--t-h3:1.25rem;--lh-h3:1.625rem;--t-small:1rem;--lh-small:1.625rem;--t-label:.875rem;--t-cap:.8125rem;--t-tag:.75rem;--gutter:16px;--bar-h:56px;--rail-w:0px;--sec-gap:56px;--overlap:40px;--ease:cubic-bezier(.16, 1, .3, 1);--shadow-card:none;--shadow-fig:0 18px 40px -28px #08132f80}}@media (min-width:640px){html[data-course-page],[data-course]{--sec-gap:88px;--t-body:1.125rem;--lh-body:1.875rem;--t-lead:1.3125rem;--lh-lead:2.0625rem;--t-h1:2.75rem;--lh-h1:3.125rem;--t-h2:2rem;--lh-h2:2.5rem;--gutter:32px;--bar-h:64px;--overlap:56px}@media (scripting:none){html:has([data-course]){--sec-gap:88px;--t-body:1.125rem;--lh-body:1.875rem;--t-lead:1.3125rem;--lh-lead:2.0625rem;--t-h1:2.75rem;--lh-h1:3.125rem;--t-h2:2rem;--lh-h2:2.5rem;--gutter:32px;--bar-h:64px;--overlap:56px}}}@media (min-width:1280px){html[data-course-page],[data-course]{--t-body:1.1875rem;--lh-body:2rem;--t-lead:1.375rem;--lh-lead:2.1875rem;--t-h1:3.25rem;--lh-h1:3.5rem;--t-h2:2.375rem;--lh-h2:2.875rem;--t-h3:1.375rem;--lh-h3:1.75rem;--t-small:1.0625rem;--lh-small:1.75rem;--gutter:48px;--rail-w:232px;--sec-gap:112px;--overlap:64px;--T:34em;--G:48px;--N:272px;--Nmax:368px;--article-cols:minmax(16px, 1fr) [wide-start text-start] var(--T) [text-end] var(--G) [note-start] minmax(var(--N), var(--Nmax)) [note-end wide-end] minmax(16px, 1fr) [full-end]}@media (scripting:none){html:has([data-course]){--t-body:1.1875rem;--lh-body:2rem;--t-lead:1.375rem;--lh-lead:2.1875rem;--t-h1:3.25rem;--lh-h1:3.5rem;--t-h2:2.375rem;--lh-h2:2.875rem;--t-h3:1.375rem;--lh-h3:1.75rem;--t-small:1.0625rem;--lh-small:1.75rem;--gutter:48px;--rail-w:232px;--sec-gap:112px;--overlap:64px;--T:34em;--G:48px;--N:272px;--Nmax:368px;--article-cols:minmax(16px, 1fr) [wide-start text-start] var(--T) [text-end] var(--G) [note-start] minmax(var(--N), var(--Nmax)) [note-end wide-end] minmax(16px, 1fr) [full-end]}}}@media (min-width:1440px){html[data-course-page],[data-course]{--rail-w:272px}@media (scripting:none){html:has([data-course]){--rail-w:272px}}}@media (min-width:1600px){html[data-course-page],[data-course]{--t-body:1.25rem;--lh-body:2.0625rem;--t-lead:1.4375rem;--lh-lead:2.25rem;--t-h1:3.5rem;--lh-h1:3.75rem;--t-h2:2.5rem;--lh-h2:3rem;--rail-w:288px;--G:64px;--N:320px;--Nmax:496px}@media (scripting:none){html:has([data-course]){--t-body:1.25rem;--lh-body:2.0625rem;--t-lead:1.4375rem;--lh-lead:2.25rem;--t-h1:3.5rem;--lh-h1:3.75rem;--t-h2:2.5rem;--lh-h2:3rem;--rail-w:288px;--G:64px;--N:320px;--Nmax:496px}}}[data-course] *,[data-course] :before,[data-course] :after{box-sizing:border-box}html[data-course-page]{-moz-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--bar-h) + 20px);background:var(--navy)}@media 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input{font:inherit;color:inherit}[data-course] dfn{color:var(--heading);font-style:normal;font-weight:700}[data-course] b,[data-course] strong{font-weight:700}[data-course] q{quotes:"“" "”"}[data-course] h1,[data-course] h2,[data-course] h3{text-wrap:balance}[data-course] p,[data-course] li{text-wrap:pretty}[data-course] [hidden]{display:none!important}[data-course] .ec-ui,[data-course] .ec-ui *,[data-course] .ec-btn,[data-course] button,[data-course] summary,[data-course] [role=radio],[data-course] [role=button],[data-course] input[type=range],[data-course] .etf,[data-course] .etf *{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent}[data-course] button,[data-course] summary,[data-course] [role=radio],[data-course] input[type=range]{touch-action:manipulation}[data-course] .ec-ui input[type=text],[data-course] .ec-input,[data-course] .ec-ui .ec-quiz-q,[data-course] .ec-ui .ec-quiz-hint,[data-course] .ec-ui .ec-ans-why,[data-course] .ec-ui .ec-help,[data-course] .ec-ui .ec-done-text,[data-course] .ec-ui .ec-qs-score-t,[data-course] .ec-ui .ec-qs-score-list,[data-course] .ec-ui .ec-full,[data-course] .ec-ui .ec-spec-q,[data-course] .ec-ui .ec-chart-head,[data-course] .ec-ui .ec-guess-q,[data-course] .ec-ui .ec-reveal-body,[data-course] .etf .etf-mm-head,[data-course] .etf .etf-mm-ratio,[data-course] .etf .etf-rpoint{-webkit-user-select:text;user-select:text;-webkit-touch-callout:default}[data-course] .ec-toc a,[data-course] .ec-dtoc a,[data-course] .ec-dles,[data-course] .eh-map a,[data-course] .eh-idx a{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}[data-course] .ec-num{font-variant-numeric:tabular-nums;white-space:nowrap}[data-course] .ec-nowrap{white-space:nowrap}[data-course] .ec-sr{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}[data-course] .ec-skip{z-index:70;color:var(--navy);background:#fff;border-radius:4px;padding:10px 14px;font-weight:700;position:absolute;top:8px;left:8px;transform:translateY(-160%)}[data-course] .ec-skip:focus{transform:none}@media (scripting:none){[data-course] .ec-needs-js{display:none!important}}@media (scripting:enabled){[data-course] .ec-no-js{display:none!important}}[data-course] .ec-tri{clip-path:polygon(0 0,100% 50%,0 100%);background:currentColor;flex:none;width:.625em;height:.75em;display:inline-block}[data-course] .ec-chev{--ico:var(--ico-chev);width:16px;height:16px;-webkit-mask:var(--ico) center / 100% 100% no-repeat;-webkit-mask:var(--ico) center / 100% 100% no-repeat;mask:var(--ico) center / 100% 100% no-repeat;background:currentColor;flex:none;margin-inline:-4px;display:inline-block}[data-course] .ec-chev--left{transform:rotate(180deg)}[data-course] .ec-chev--down{transform:rotate(90deg)}[data-course] .ec-arrow{clip-path:polygon(0 42%,62% 42%,62% 8%,100% 50%,62% 92%,62% 58%,0 58%);background:currentColor;flex:none;width:14px;height:12px;display:inline-block}[data-course] .ec-check{border-bottom:2px solid;border-right:2px solid;flex:none;width:6px;height:11px;margin:-2px 2px 0 1px;display:inline-block;transform:rotate(45deg)}[data-course] .ec-btn{border:1px solid var(--accent);background:var(--accent);color:#fff;white-space:nowrap;cursor:pointer;border-radius:4px;justify-content:center;align-items:center;gap:10px;min-height:48px;padding:0 22px;font-size:1rem;font-weight:700;line-height:1.2;text-decoration:none;transition:background-color .12s,border-color .12s,transform .12s;display:inline-flex}[data-course] .ec-btn:hover{background:var(--accent-strong);border-color:var(--accent-strong);text-decoration:none}[data-course] .ec-btn:active{transform:translateY(1px)}[data-course] .ec-btn--ghost{border-color:var(--ctl-line);color:#fff;background:0 0}[data-course] .ec-btn--ghost:hover{border-color:var(--ctl-line-hover);background:#ffffff14}[data-course] .ec-btn--dark{background:var(--navy);border-color:var(--navy);color:#fff}[data-course] .ec-btn--dark:hover{background:var(--navy-3);border-color:var(--navy-3)}[data-course] .ec-btn--line{background:var(--card);border-color:var(--line-strong);color:var(--heading)}[data-course] .ec-btn--line:hover{background:var(--accent-soft);border-color:var(--accent)}[data-course] .ec-btn[disabled],[data-course] .ec-btn[aria-disabled=true]{opacity:.45;cursor:not-allowed}html[data-course-page],[data-course]{--ico-check:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7.5 12l3 3 6-6' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");--ico-cross:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M8 8l8 8M16 8l-8 8' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round'/%3E%3C/svg%3E");--ico-bang:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 6.85v5.7' fill='none' stroke='%23000' stroke-width='2.6' stroke-linecap='round'/%3E%3Ccircle cx='12' cy='17' r='1.45'/%3E%3C/svg%3E");--ico-chev:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 6l6 6-6 6' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")}@media (scripting:none){html:has([data-course]){--ico-check:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7.5 12l3 3 6-6' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");--ico-cross:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M8 8l8 8M16 8l-8 8' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round'/%3E%3C/svg%3E");--ico-bang:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 6.85v5.7' fill='none' stroke='%23000' stroke-width='2.6' stroke-linecap='round'/%3E%3Ccircle cx='12' cy='17' r='1.45'/%3E%3C/svg%3E");--ico-chev:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 6l6 6-6 6' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")}}[data-course] .ec-cicon:after,[data-course] .ec-mark:after,[data-course] .ec-qs-track li.is-right:after{content:"";width:var(--ico-box,100%);height:var(--ico-box,100%);background:var(--ico-ink,#fff);-webkit-mask:var(--ico) center / 100% 100% no-repeat;-webkit-mask:var(--ico) center / 100% 100% no-repeat;mask:var(--ico) center / 100% 100% no-repeat;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}[data-course] .ec-ans-l,[data-course] .ec-gcard-l,[data-course] .ec-recap-n,[data-course] .ec-qs-track li{font-variant-numeric:lining-nums tabular-nums;text-box:trim-both cap alphabetic;will-change:transform;line-height:normal}@supports not (text-box:trim-both cap alphabetic){[data-course] .ec-ans-l,[data-course] .ec-gcard-l,[data-course] .ec-recap-n,[data-course] .ec-qs-track li{padding-top:.14em}}[data-course] .ec-recap-n[data-one],[data-course] .ec-qs-track li[data-one]{padding-left:.09em}[data-course] .ec-tag{border:1px solid var(--dark-line-strong);height:24px;color:var(--on-dark-body);font-size:var(--t-tag);white-space:nowrap;border-radius:999px;align-items:center;padding:0 10px;font-weight:700;line-height:1;display:inline-flex}[data-course] .ec-pill{background:var(--paper-deep);height:22px;color:var(--muted);font-size:var(--t-tag);white-space:nowrap;border-radius:999px;align-items:center;padding:0 9px;font-weight:700;line-height:1;display:inline-flex}[data-course] .ec-pill--accent{color:var(--accent-pale);background:#6b9bff2e}[data-course] .ec-pill--warn{background:var(--warn-soft);color:var(--warn-ink)}[data-course] .ec-bar{z-index:40;background:var(--navy);color:#fff;border-bottom:1px solid var(--dark-line);position:sticky;top:0}[data-course] .ec-bar-inner{height:var(--bar-h);max-width:1680px;padding:0 var(--gutter);padding-left:max(var(--gutter), env(safe-area-inset-left));padding-right:max(var(--gutter), env(safe-area-inset-right));align-items:center;gap:12px;margin:0 auto;display:flex}[data-course] .ec-brand{border-radius:4px;flex:none;align-items:center;min-height:44px;margin:0 -6px;padding:0 6px;display:flex}[data-course] .ec-brand:focus-visible{outline:2px solid var(--accent-bright);outline-offset:2px}[data-course] .ec-brand img{width:132px;height:auto}[data-course] .ec-bar-course{color:var(--on-dark-head);white-space:nowrap;font-size:.9375rem;font-weight:500;text-decoration:none;display:none}[data-course] .ec-bar-course:hover{text-decoration:underline}[data-course] .ec-bar-where{color:var(--on-dark-muted);font-size:var(--t-label);white-space:nowrap;margin:0 0 0 auto;display:none}@media (min-width:640px){[data-course] .ec-brand img{width:150px}[data-course] .ec-bar-course{border-left:1px solid var(--dark-line-strong);margin-left:4px;padding-left:14px;display:block}}@media (min-width:1024px){[data-course] .ec-brand img{width:164px}[data-course] .ec-bar-where{display:block}}[data-course] .ec-menu{color:#fff;cursor:pointer;background:0 0;border:0;border-radius:4px;align-items:center;gap:10px;height:44px;margin-left:-8px;padding:0 12px 0 8px;font-size:.9375rem;font-weight:500;display:inline-flex}[data-course] .ec-menu:hover{background:#ffffff14}[data-course] .ec-burger{background:linear-gradient(currentColor,currentColor) 0/100% 2px no-repeat;border-top:2px solid;border-bottom:2px solid;width:18px;height:14px}@media (scripting:none){[data-course] .ec-menu,[data-course] .ec-drawer .ec-close{display:none}}[data-course] .ec-progress{pointer-events:none;height:2px;position:absolute;bottom:-1px;left:0;right:0}[data-course] .ec-progress-fill{background:var(--accent-bright);transform-origin:0;width:100%;height:100%;transform:scaleX(var(--p,0));display:block}[data-course] .ec-drawer{z-index:60;overscroll-behavior:contain;background:var(--navy);width:min(380px,88vw);color:var(--on-dark-body);visibility:hidden;transition:transform .24s var(--ease), visibility 0s linear .24s;scrollbar-width:thin;scrollbar-color:#ffffff3d transparent;font-size:.9375rem;line-height:1.375rem;position:fixed;inset:0 auto 0 0;overflow-y:auto;transform:translate(-100%);box-shadow:24px 0 48px #08132f59}[data-course] .ec-drawer.is-open{visibility:visible;transition:transform .24s var(--ease);transform:none}@media (scripting:none){[data-course] .ec-drawer{visibility:visible;width:auto;box-shadow:none;position:static;transform:none}}[data-course] .ec-scrim{z-index:55;background:#08132f8c;border:0;position:fixed;inset:0}[data-course] .ec-drawer-in{padding:12px 12px 40px;padding-left:max(12px, env(safe-area-inset-left))}[data-course] .ec-drawer-head{border-bottom:1px solid var(--dark-line);justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;padding:4px 4px 12px 12px;display:flex}[data-course] .ec-drawer-title{color:var(--on-dark-head);margin:0;font-weight:700}[data-course] .ec-close{cursor:pointer;background:linear-gradient(45deg,#0000 calc(50% - 1px),#fff calc(50% - 1px) calc(50% + 1px),#0000 calc(50% + 1px)) 50%/16px 16px no-repeat,linear-gradient(-45deg,#0000 calc(50% - 1px),#fff calc(50% - 1px) calc(50% + 1px),#0000 calc(50% + 1px)) 50%/16px 16px no-repeat;border:0;border-radius:4px;flex:none;width:44px;height:44px}[data-course] .ec-close:hover{background-color:#ffffff14}[data-course] .ec-drawer-home{min-height:44px;color:var(--on-dark-head);border-radius:4px;align-items:center;gap:10px;padding:0 12px;font-weight:500;text-decoration:none;display:flex}[data-course] .ec-drawer-home:hover{background:#ffffff0f}[data-course] .ec-dmod{border-top:1px solid var(--dark-line)}[data-course] .ec-dmod>summary{cursor:pointer;border-radius:4px;grid-template-columns:minmax(0,1fr) 16px;align-items:center;column-gap:8px;min-height:56px;padding:8px 12px;list-style:none;display:grid}[data-course] .ec-dmod>summary::-webkit-details-marker{display:none}[data-course] .ec-dmod>summary:after{content:"";border-right:2px solid var(--on-dark-muted);border-bottom:2px solid var(--on-dark-muted);width:8px;height:8px;transition:transform .2s var(--ease);grid-area:1/2/span 2;margin-left:3px;transform:rotate(45deg)}[data-course] .ec-dmod[open]>summary:after{transform:rotate(-135deg)}[data-course] .ec-dmod>summary:hover{background:#ffffff0d}[data-course] .ec-dmod-k{color:var(--on-dark-muted);font-size:var(--t-cap);line-height:1.125rem}[data-course] .ec-dmod-n{color:var(--on-dark-head);grid-column:1;font-weight:700}[data-course] .ec-dlist{margin:0 0 10px;padding:0;list-style:none}[data-course] .ec-dles{min-height:40px;color:var(--on-dark-muted);border-radius:4px;grid-template-columns:34px minmax(0,1fr) auto auto;align-items:start;column-gap:4px;padding:9px 12px;text-decoration:none;display:grid}[data-course] .ec-dles-c{color:var(--on-dark-muted);font-size:var(--t-cap);font-variant-numeric:tabular-nums}[data-course] .ec-dles-t{min-width:0}[data-course] .ec-dles-tag{color:var(--on-dark-muted);font-size:var(--t-tag);white-space:nowrap;margin-top:1px;font-weight:500;line-height:1.25rem}[data-course] a.ec-dles{color:var(--on-dark-head);font-weight:500}[data-course] a.ec-dles:hover{background:#ffffff0f}[data-course] a.ec-dles[aria-current=page]{color:#fff;background:#6b9bff29;font-weight:700}[data-course] a.ec-dles[aria-current=page] .ec-dles-c{color:var(--accent-bright);font-weight:700}[data-course] .ec-dles-done{color:var(--up);display:none}[data-course] .ec-dles.is-done .ec-dles-done{display:inline-block}[data-course] .ec-pbar{background:var(--line);border-radius:999px;height:6px;position:relative;overflow:hidden}[data-course] .ec-pbar-fill{border-radius:inherit;background:var(--accent);transform-origin:0;width:100%;height:100%;transform:scaleX(var(--p,0));display:block}[data-course] .ec-prog-t{color:var(--muted);font-size:var(--t-cap);font-variant-numeric:tabular-nums;margin:8px 0 0;line-height:1.125rem}[data-course] .ec-prog-t b{color:var(--heading);font-weight:700}[data-course] .ec-dprog{padding:4px 12px 14px}[data-course] .ec-drawer .ec-pbar{background:#ffffff24}[data-course] .ec-drawer .ec-pbar-fill{background:var(--accent-bright)}[data-course] .ec-drawer .ec-prog-t{color:var(--on-dark-muted)}[data-course] .ec-drawer .ec-prog-t b{color:var(--on-dark-head)}[data-course] .ec-dmod-num{font-variant-numeric:tabular-nums}[data-course] .ec-lock-ico{width:14px;height:14px;color:var(--on-dark-muted);flex:none;margin-top:3px}html[data-course-member] [data-course] .ec-lock-ico{display:none}[data-course] .ec-route .ec-dmod>summary{min-height:52px;padding:8px 4px}@media (min-width:640px){[data-course] .ec-route .ec-dmod>summary{min-height:60px;padding:10px 12px}}[data-course] .ec-route .ec-dmod>summary:focus-visible{outline:2px solid var(--accent-bright);outline-offset:-2px}[data-course] .ec-route .ec-dmod-n{font-size:1.0625rem}[data-course] .ec-route .ec-dles{color:var(--on-dark-body)}[data-course] .ec-route .ec-dles.is-here{color:#fff;background:#6b9bff29;font-weight:700}[data-course] .ec-route .ec-dles.is-here .ec-dles-c{color:var(--accent-bright);font-weight:700}[data-course] .ec-route .ec-dles.is-here .ec-dles-tag{color:var(--accent-pale)}@media (min-width:1024px){[data-course] .ec-route .ec-dlist{columns:2;column-gap:24px}[data-course] .ec-route .ec-dlist>li{break-inside:avoid}}[data-course] .ec-paths{gap:0;display:grid}[data-course] .ec-path{min-width:0;padding:4px 0 8px}[data-course] .ec-path+.ec-path{border-top:1px solid var(--dark-line);margin-top:12px;padding-top:20px}@container ecfig (min-width:600px){[data-course] .ec-paths{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}[data-course] .ec-path+.ec-path{border-top:0;border-left:1px solid var(--dark-line);margin-top:0;padding:4px 0 8px 28px}[data-course] .ec-path:first-child{padding-right:28px}}[data-course] .ec-paths--3 .ec-path+.ec-path{margin-top:8px;padding-top:16px}[data-course] .ec-paths--3 .ec-path-list{margin-top:10px}[data-course] .ec-paths--3 .ec-path-list li+li{margin-top:8px}@container ecfig (min-width:600px){[data-course] .ec-paths--3{grid-template-columns:minmax(0,1fr)}[data-course] .ec-paths--3 .ec-path+.ec-path{border-top:1px solid var(--dark-line);border-left:0;margin-top:8px;padding:16px 0 8px}[data-course] .ec-paths--3 .ec-path:first-child{padding-right:0}}@container ecfig (min-width:840px){[data-course] .ec-paths--3{grid-template-columns:repeat(3,minmax(0,1fr))}[data-course] .ec-paths--3 .ec-path+.ec-path{border-top:0;border-left:1px solid var(--dark-line);margin-top:0;padding:4px 24px 8px}[data-course] .ec-paths--3 .ec-path:first-child{padding-right:24px}[data-course] .ec-paths--3 .ec-path:last-child{padding-right:0}}[data-course] .ec-path-t{color:var(--on-dark-strong);margin:0;font-size:1.0625rem;font-weight:700;line-height:1.5rem}[data-course] .ec-path-s{color:var(--on-dark-muted);font-size:var(--t-cap);margin:4px 0 0;line-height:1.25rem}[data-course] .ec-path-list{margin:14px 0 0;padding:0;list-style:none}[data-course] .ec-path-list li{color:var(--on-dark-body);font-size:var(--t-small);align-items:flex-start;gap:12px;line-height:1.5rem;display:flex}[data-course] .ec-path-list li+li{margin-top:12px}[data-course] .ec-path-list b{color:var(--on-dark-head)}[data-course] .ec-path-list .ec-mark{margin-top:1px}[data-course] .ec-path-list li.is-off{color:var(--on-dark-muted)}[data-course] .ec-mark--off{--ico:var(--ico-cross);--ico-ink:var(--on-dark-body);background:var(--ctl-bg);box-shadow:inset 0 0 0 1.5px var(--ctl-line)}[data-course] .ec-dtoc ol{margin:2px 0 8px 28px;padding:0;list-style:none}[data-course] .ec-dtoc a{min-height:40px;color:var(--on-dark-body);font-size:var(--t-label);border-radius:4px;align-items:center;padding:4px 12px 4px 22px;line-height:1.25rem;text-decoration:none;display:flex;position:relative}[data-course] .ec-dtoc a:before,[data-course] .ec-toc a:before{content:"";background:0 0;border-radius:1px;width:9px;height:2px;margin-top:-1px;position:absolute;top:50%;left:6px}[data-course] .ec-dtoc a:hover{color:#fff;background:#ffffff0d}[data-course] .ec-dtoc a[aria-current=true]{color:#fff;font-weight:700}[data-course] .ec-dtoc a[aria-current=true]:before{background:var(--accent-bright)}@media (pointer:coarse),(max-width:639px){[data-course] .ec-dles,[data-course] .ec-dtoc a{align-items:center;min-height:48px}[data-course] .ec-dles{padding-top:12px;padding-bottom:12px}}[data-course] .ec-hero{background:var(--panel);color:var(--on-dark-body);padding-bottom:var(--overlap);position:relative}[data-course] .ec-hero-in{max-width:1680px;padding:28px var(--gutter) 32px;margin:0 auto;position:relative}[data-course] .ec-hero-grid{gap:28px;display:grid}@media (min-width:1280px){[data-course] .ec-hero-in{grid-template-columns:[rail-start] var(--rail-w) [rail-end full-start] var(--article-cols);padding:56px 16px 40px var(--gutter);display:grid}[data-course] .ec-hero-grid{grid-column:rail-start/wide-end;grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:start;column-gap:56px}[data-course] .ec-hero-text{padding-top:24px}}@media (min-width:1600px){[data-course] .ec-hero-in{padding-top:64px}[data-course] .ec-hero-grid{column-gap:72px}}@media (min-width:1280px){[data-course] .ec-hero-grid:not(:has(.ec-video)){grid-template-columns:minmax(0,1fr)}[data-course] .ec-hero-grid:not(:has(.ec-video)) .ec-hero-text{max-width:52rem}}[data-course] .ec-kicker{color:var(--accent-bright);font-size:var(--t-label);letter-spacing:.01em;margin:0 0 12px;font-weight:700}[data-course] .ec-kicker[data-module-line]{letter-spacing:0;flex-wrap:wrap;align-items:center;gap:8px 12px;margin-bottom:14px;font-size:.9375rem;line-height:1.375rem;display:flex}[data-course] .ec-kicker-mod{color:var(--on-dark-head)}[data-course] .ec-kicker-pos{box-shadow:inset 0 0 0 1px var(--dark-line-strong);color:var(--accent-pale);font-size:var(--t-label);font-variant-numeric:tabular-nums;white-space:nowrap;border-radius:999px;padding:1px 10px;font-weight:500;line-height:1.375rem}[data-course] .ec-title-code{color:var(--accent-bright);font-variant-numeric:tabular-nums;margin-right:.04em}[data-course] .ec-title{color:var(--on-dark-head);font-size:var(--t-h1);line-height:var(--lh-h1);letter-spacing:-.022em;margin:0;font-weight:700}[data-course] .ec-hero-lead{max-width:34em;color:var(--on-dark-body);font-size:var(--t-lead);line-height:var(--lh-lead);margin:16px 0 0}[data-course] .ec-meta{color:var(--on-dark-muted);font-size:var(--t-label);flex-wrap:wrap;row-gap:4px;margin:20px 0 0;padding:0;line-height:1.25rem;list-style:none;display:flex}@media (max-width:389px){[data-course] .ec-meta{--meta-bar:none;column-gap:18px}}[data-course] .ec-meta li+li:before{content:"";display:var(--meta-bar,inline-block);vertical-align:-2px;background:var(--dark-line-strong);width:1px;height:14px;margin:0 12px}[data-course] .ec-meta b{color:var(--on-dark-head);font-weight:500}[data-course] .ec-actions{flex-wrap:wrap;gap:12px;margin-top:24px;display:flex}@media (max-width:639px){[data-course] .ec-actions .ec-btn{flex:1 1 0;padding:0 12px}[data-course] .ec-actions{display:none}}[data-course] .ec-hero a:not(.ec-btn){color:var(--accent-pale)}[data-course] .ec-video{min-width:0;container:ecvideo/inline-size}@media (max-width:639px){[data-course] .ec-video{margin:0 calc(-1 * var(--gutter))}[data-course] .ec-video>:not(.ec-video-box){margin-left:var(--gutter);margin-right:var(--gutter)}@media (scripting:enabled){[data-course] .ec-video:not(.is-open) .ec-video-box,[data-course] .ec-video-more:not(.is-open){display:none}}[data-course] .ec-video--none{display:none}}[data-course] .ec-vrow{display:none}@media (max-width:639px){[data-course] .ec-vrow{width:calc(100% - 2 * var(--gutter));border:1px solid var(--ctl-line);background:var(--ctl-bg);color:#fff;text-align:left;cursor:pointer;border-radius:8px;grid-template-rows:auto auto;grid-template-columns:44px minmax(0,1fr);align-items:center;column-gap:14px;min-height:68px;padding:12px 16px 12px 12px;display:grid}[data-course] .ec-vrow .ec-play-disc{grid-row:1/span 2;width:44px;height:44px}[data-course] .ec-vrow-t{align-self:end;font-size:1.0625rem;font-weight:700;line-height:1.375rem}[data-course] .ec-vrow-m{color:var(--on-dark-body);font-size:var(--t-label);align-self:start;line-height:1.25rem}[data-course] .ec-video.is-open .ec-vrow{display:none}}[data-course] .ec-video-box{aspect-ratio:16/9;border-top:1px solid var(--dark-line);border-bottom:1px solid var(--dark-line);background:#050c20;position:relative;overflow:hidden}@media (min-width:640px){[data-course] .ec-video-box{border:1px solid var(--dark-line);border-radius:12px;box-shadow:0 30px 60px -30px #0009}}[data-course] .ec-video-box:has(:focus-visible){box-shadow:0 0 0 2px var(--accent-bright), 0 30px 60px -30px #0009}[data-course] .ec-video-box video{object-fit:contain;width:100%;height:100%}[data-course] .ec-video-box video:focus{outline:none}[data-course] .ec-cover{background:var(--panel);position:absolute;inset:0}[data-course] .ec-cover-btn{color:#fff;text-align:left;cursor:pointer;background:0 0;border:0;align-content:end;justify-items:start;width:100%;padding:12px 14px 14px;display:grid;position:absolute;inset:0}[data-course] .ec-cover-btn:focus-visible{outline:none}[data-course] .ec-cover-art{display:none}[data-course] .ec-cover-body{justify-items:start;gap:4px;min-width:0;display:grid}[data-course] .ec-cover-kicker{color:var(--accent-bright);font-size:var(--t-cap);font-weight:700;line-height:1.125rem}[data-course] .ec-cover-title{max-width:22em;color:var(--on-dark-head);letter-spacing:-.01em;text-wrap:balance;font-size:1.125rem;font-weight:700;line-height:1.4375rem;display:block}[data-course] .ec-cover-sub{max-width:32em;color:var(--on-dark-body);font-size:.9375rem;line-height:1.375rem;display:none}[data-course] .ec-play{background:#ffffff1a;border-radius:999px;align-items:center;gap:10px;margin-top:6px;padding:4px 16px 4px 4px;font-size:.9375rem;font-weight:700;transition:background-color .12s;display:inline-flex;box-shadow:inset 0 0 0 1px #ffffff42}[data-course] .ec-cover-btn:hover .ec-play{background:#ffffff2e}[data-course] .ec-play-disc{width:36px;height:36px;color:var(--navy);will-change:transform;background:#fff;border-radius:50%;place-items:center;display:grid}[data-course] .ec-play-disc .ec-tri{width:12px;height:14px;margin-left:4px}@container ecvideo (min-width:400px){[data-course] .ec-cover-btn{padding:18px 22px 20px}[data-course] .ec-cover-title{font-size:1.25rem;line-height:1.625rem}[data-course] .ec-play-disc{width:40px;height:40px}}@container ecvideo (min-width:560px){[data-course] .ec-cover-btn{align-content:center;padding:28px 34px 30px}[data-course] .ec-cover-body{gap:8px;max-width:54%}[data-course] .ec-cover-title{font-size:1.375rem;line-height:1.75rem}[data-course] .ec-cover-sub{display:block}[data-course] .ec-play{margin-top:14px;font-size:1rem}[data-course] .ec-play-disc{width:48px;height:48px}[data-course] .ec-cover-art{pointer-events:none;gap:12px;width:36%;display:grid;position:absolute;top:50%;right:34px;transform:translateY(-50%)}[data-course] .ec-cover-art .ec-cover-trader{box-shadow:inset 0 0 0 1px var(--dark-line);background:#ffffff0d;border-radius:8px;padding:14px 18px 12px}[data-course] .ec-cover-art .etf-money-label{color:var(--on-dark-body);font-size:.875rem}[data-course] .ec-cover-art .etf-money-value{font-size:min(2.25rem,14cqi)}[data-course] .ec-cover--plain .ec-cover-body{max-width:76%}}@container ecvideo (min-width:700px){[data-course] .ec-cover-title{font-size:1.625rem;line-height:2.0625rem}}@container ecvideo (min-width:900px){[data-course] .ec-cover-title{font-size:2rem;line-height:2.375rem}}[data-course] .ec-video-error{background:var(--navy);color:var(--on-dark-body);align-content:center;gap:6px;padding:24px;font-size:.9375rem;line-height:1.375rem;display:grid;position:absolute;inset:0}[data-course] .ec-video-error p{margin:0}[data-course] .ec-video-error-t{color:var(--on-dark-head);font-weight:700}[data-course] .ec-video-ph{background:var(--panel);align-content:end;gap:6px;padding:20px 22px;display:grid;position:absolute;inset:0}[data-course] .ec-video-ph p{margin:0}[data-course] .ec-video-more{min-width:0}@media (min-width:1280px){[data-course] .ec-video-more{grid-column:1/-1}}[data-course] .ec-chapters{margin-top:18px}@media (max-width:639px){[data-course] .ec-chap-list{margin:0 calc(-1 * var(--gutter))!important;padding:0 var(--gutter) 4px!important}}[data-course] .ec-chapters-title{color:var(--on-dark-muted);font-size:var(--t-cap);margin:0 0 8px;font-weight:500;line-height:1.125rem}[data-course] .ec-chap-list{overscroll-behavior-x:contain;scroll-snap-type:x mandatory;scroll-padding-inline:var(--gutter);scrollbar-width:none;gap:8px;margin:0;padding:0 0 4px;list-style:none;display:flex;overflow-x:auto}[data-course] .ec-chap-list::-webkit-scrollbar{display:none}[data-course] .ec-chap-list>li{scroll-snap-align:start;flex:none;display:grid}@media (min-width:640px){[data-course] .ec-chap-list{grid-template-columns:repeat(var(--chapters,5), minmax(0, 1fr));padding:0;display:grid;overflow:visible}}[data-course] .ec-chap{border:1px solid var(--ctl-line);background:var(--ctl-bg);width:136px;min-height:60px;color:var(--on-dark-body);text-align:left;cursor:pointer;border-radius:8px;align-content:center;gap:2px;padding:8px 12px;transition:background-color .12s,border-color .12s,box-shadow .12s;display:grid}@media (min-width:640px){[data-course] .ec-chap{width:100%}}[data-course] .ec-chap:hover{background:var(--ctl-bg-hover);border-color:var(--ctl-line-hover)}[data-course] .ec-chap-time{color:var(--accent-bright);font-size:var(--t-cap);font-variant-numeric:tabular-nums;align-items:center;gap:6px;font-weight:700;line-height:1.125rem;display:flex}[data-course] .ec-chap-label{color:var(--on-dark-head);font-size:var(--t-label);text-wrap:balance;font-weight:500;line-height:1.25rem}[data-course] .ec-chap[aria-current=true]{border-color:var(--sel-edge);background:var(--sel-bg);box-shadow:inset 0 0 0 1px var(--sel-edge)}[data-course] .ec-video-note{color:var(--on-dark-muted);font-size:var(--t-cap);margin:14px 0 0;line-height:1.25rem}[data-course] .ec-video-note a{color:var(--accent-pale)}[data-course] .ec-transcript{margin-top:10px}[data-course] .ec-transcript>summary,[data-course] .ec-video-next{font-size:.9375rem}[data-course] .ec-transcript>summary{min-height:44px;color:var(--on-dark-head);cursor:pointer;align-items:center;gap:10px;font-weight:700;list-style:none;display:inline-flex}[data-course] .ec-transcript>summary::-webkit-details-marker{display:none}[data-course] .ec-transcript>summary:after{content:"";border-bottom:2px solid;border-right:2px solid;width:7px;height:7px;margin-top:-4px;transform:rotate(45deg)}[data-course] .ec-transcript[open]>summary:after{margin-top:3px;transform:rotate(-135deg)}[data-course] .ec-transcript ol{color:var(--on-dark-body);background:#ffffff0d;border-radius:12px;max-height:320px;margin:4px 0 0;padding:16px 20px 16px 40px;font-size:.9375rem;line-height:1.5rem;overflow-y:auto}[data-course] .ec-transcript li+li{margin-top:6px}[data-course] .ec-video-next{color:var(--on-dark-body);margin:8px 0 0;line-height:1.375rem}[data-course] .ec-layout{max-width:1680px;margin:0 auto}@media (min-width:1280px){[data-course] .ec-layout{grid-template-columns:var(--rail-w) minmax(0, 1fr);padding-left:var(--gutter);display:grid}}[data-course] .ec-rail{display:none}@media (min-width:1280px){[data-course] .ec-rail{padding-top:calc(var(--overlap) + 12px);display:block}}[data-course] .ec-rail-in{top:calc(var(--bar-h) + 28px);max-height:calc(100vh - var(--bar-h) - 56px);scrollbar-width:thin;padding:4px 16px 16px 0;position:sticky;overflow-y:auto}[data-course] .ec-rail-k{color:var(--muted);font-size:var(--t-cap);margin:0;line-height:1.125rem}[data-course] .ec-rail-t{color:var(--heading);margin:2px 0 0;font-size:.9375rem;font-weight:700;line-height:1.375rem}[data-course] .ec-rail-h{color:var(--heading);font-size:var(--t-label);margin:22px 0 8px;font-weight:700;line-height:1.25rem}[data-course] .ec-toc ol{margin:0;padding:0;list-style:none}[data-course] .ec-toc a{min-height:36px;color:var(--muted);border-radius:4px;align-items:center;padding:4px 8px 4px 22px;font-size:.9375rem;line-height:1.375rem;text-decoration:none;display:flex;position:relative}[data-course] .ec-toc a:hover{color:var(--heading);background:#08132f0a}[data-course] .ec-toc a[aria-current=true]{color:var(--heading);font-weight:700}[data-course] .ec-toc a[aria-current=true]:before{background:var(--accent)}[data-course] .ec-rail-progress{margin-top:20px}[data-course] .ec-rail-progress-label{color:var(--muted);font-size:var(--t-cap);font-variant-numeric:tabular-nums;margin:0 0 8px;line-height:1.125rem}[data-course] .ec-rail-segs{gap:3px;display:flex}[data-course] .ec-rail-segs span{background:var(--line);border-radius:999px;flex:1 1 0;height:4px}[data-course] .ec-rail-segs span.is-on{background:var(--accent)}[data-course] .ec-rail-all{border:1px solid var(--line-strong);min-height:44px;color:var(--heading);font-size:var(--t-label);cursor:pointer;background:0 0;border-radius:4px;align-items:center;gap:10px;margin-top:16px;padding:0 14px;font-weight:700;display:inline-flex}[data-course] .ec-rail-all:hover{border-color:var(--accent);background:var(--accent-soft)}@media (scripting:none){[data-course] .ec-rail-all{display:none}}[data-course] .ec-sc-mod{color:var(--muted);font-size:var(--t-cap);margin:0;font-weight:500;line-height:1.125rem}[data-course] .ec-sc-t{color:var(--heading);text-wrap:pretty;margin:6px 0 0;font-size:1rem;font-weight:700;line-height:1.375rem}[data-course] .ec-sc-code{color:var(--accent-strong);font-variant-numeric:tabular-nums}[data-course] .ec-sc-pos{box-shadow:inset 0 0 0 1px var(--line-strong);color:var(--muted);font-size:var(--t-cap);font-variant-numeric:tabular-nums;white-space:nowrap;border-radius:999px;margin:10px 0 0;padding:1px 10px;font-weight:500;line-height:1.25rem;display:inline-block}[data-course] .ec-sc .ec-rail-h{border-top:1px solid var(--line);margin:20px 0 6px;padding-top:16px}[data-course] .ec-sc .ec-rail-in,[data-course] .ec-sc .ec-toc a{margin-left:-18px;padding-left:18px}[data-course] .ec-sc .ec-toc a:before{left:3px}[data-course] .ec-article{grid-template-columns:[full-start] var(--gutter) [wide-start text-start note-start] minmax(0, 1fr) [wide-end text-end note-end] var(--gutter) [full-end];min-width:0;padding:0 0 96px;display:grid}@media (min-width:640px){[data-course] .ec-article{grid-template-columns:[full-start] minmax(var(--gutter), 1fr) [wide-start] minmax(0, 48px) [text-start note-start] minmax(0, 34em) [text-end note-end] minmax(0, 48px) [wide-end] minmax(var(--gutter), 1fr) [full-end]}}@media (min-width:900px) and (max-width:1023px){[data-course] .ec-article{grid-template-columns:[full-start] var(--gutter) [wide-start] minmax(0, 1fr) [text-start note-start] minmax(0, 34em) [text-end note-end] minmax(0, 1fr) [wide-end] var(--gutter) [full-end]}}@media (min-width:1024px) and (max-width:1279px){[data-course] .ec-article{grid-template-columns:[full-start] var(--gutter) [wide-start text-start] minmax(0, 34em) [text-end] 40px [note-start] minmax(240px, 1fr) [note-end wide-end] var(--gutter) [full-end]}}@media (min-width:1280px){[data-course] .ec-article{grid-template-columns:[full-start] var(--article-cols);padding-right:16px}}[data-course] .ec-sec{grid-column:full;grid-template-columns:subgrid;display:grid}[data-course] :where(.ec-article,.ec-sec)>*{grid-column:text;min-width:0;margin:0}[data-course] .ec-sec>p,[data-course] .ec-sec>ul,[data-course] .ec-sec>ol{margin-top:16px}@media (min-width:640px){[data-course] .ec-sec>p,[data-course] .ec-sec>ul,[data-course] .ec-sec>ol{margin-top:20px}}@media (min-width:1280px){[data-course] .ec-sec>p{margin-top:22px}}[data-course] .ec-sec>h2{margin-top:var(--sec-gap);color:var(--heading);font-size:var(--t-h2);line-height:var(--lh-h2);letter-spacing:-.018em;scroll-margin-top:calc(var(--bar-h) + 24px);font-weight:700}[data-course] .ec-tickrule,[data-course] .ec-hero-text:before{content:"";--tr:var(--accent-bright);background:linear-gradient(var(--tr), var(--tr)) 0 100% / 100% 2px no-repeat, linear-gradient(var(--tr), var(--tr)) 0 0 / 2px 100% no-repeat, linear-gradient(var(--tr), var(--tr)) 100% 0 / 2px 100% no-repeat, linear-gradient(var(--tr), var(--tr)) 11px 100% / 2px 50% no-repeat, linear-gradient(var(--tr), var(--tr)) 22px 100% / 2px 50% no-repeat, linear-gradient(var(--tr), var(--tr)) 33px 100% / 2px 50% no-repeat;width:46px;height:12px;margin-bottom:16px;display:block}[data-course] .ec-sec>h2+p{margin-top:16px}[data-course] .ec-lead{color:var(--heading);font-size:var(--t-lead);line-height:var(--lh-lead)}[data-course] .ec-opener{margin-top:56px}[data-course] .ec-opener>.ec-lead:first-child{margin-top:0}[data-course] .ec-sec>.ec-lede{margin-top:16px}[data-course] .ec-lede-text>p{margin:0}[data-course] .ec-lede-text>p+p{margin-top:16px}[data-course] .ec-side{margin-top:12px}[data-course] .ec-side .ec-keys{display:none}@media (max-width:1023px){[data-course] .ec-lede{flex-direction:column;display:flex}[data-course] .ec-lede-text{display:contents}[data-course] .ec-lede-text>p:last-child:not(:first-child){order:2;margin-top:16px}[data-course] .ec-side{order:1}[data-course] .ec-side:not(:has(.ec-tip)){display:none}}@media (min-width:640px) and (max-width:1023px){[data-course] .ec-lede-text>p:last-child:not(:first-child){margin-top:20px}}@media (min-width:640px){[data-course] .ec-sec>.ec-lede,[data-course] .ec-lede-text>p+p,[data-course] .ec-side{margin-top:20px}}@media (min-width:1024px){[data-course] .ec-sec>.ec-lede{grid-column:text-start/note-end;grid-template-columns:subgrid;align-items:stretch;display:grid}[data-course] .ec-lede-text{grid-area:1/text}[data-course] .ec-side{grid-area:1/note;min-width:0;margin-top:0}[data-course] .ec-side-in,[data-course] .ec-side>:first-child:last-child{top:calc(var(--bar-h) + 24px);position:sticky}[data-course] .ec-side .ec-keys{display:block}[data-course] .ec-side>*+*{margin-top:20px}}@media (min-width:1280px){[data-course] .ec-sec>.ec-lede,[data-course] .ec-lede-text>p+p{margin-top:22px}}[data-course] .ec-keys{border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:12px;padding:16px 18px 12px}[data-course] .ec-keys-t{color:var(--heading);font-size:var(--t-label);margin:0 0 8px;font-weight:700;line-height:1.25rem}[data-course] .ec-keys-tbl{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%}[data-course] .ec-keys-tbl th,[data-course] .ec-keys-tbl td{text-align:right;white-space:nowrap;padding:3px 0}[data-course] .ec-keys-tbl thead th{border-bottom:1px solid var(--line);color:var(--muted);font-size:var(--t-cap);padding-top:0;padding-bottom:8px;font-weight:500;line-height:1.125rem}[data-course] .ec-keys-tbl tbody tr:first-child>*{padding-top:8px}[data-course] .ec-keys-tbl th[scope=row],[data-course] .ec-keys-tbl thead th:first-child{text-align:left}[data-course] .ec-keys-tbl th[scope=row]{color:var(--accent-ink);font-size:.9375rem;font-weight:700}[data-course] .ec-keys-tbl td{color:var(--heading);padding-left:12px;font-size:1rem;font-weight:500}[data-course] .ec-keys-tbl .is-text{text-align:left}[data-course] .ec-keys-tbl td.is-text{white-space:normal;font-weight:400}[data-course] .ec-keys-tbl tr:has(>td.is-text)>*{vertical-align:baseline}[data-course] .ec-keys-tbl td.is-text{text-wrap:balance;line-height:1.375rem}[data-course] .ec-keys-ladder{font-variant-numeric:tabular-nums;gap:2px;margin:0;padding:0;list-style:none;display:grid}[data-course] .ec-keys-ladder li{background:var(--paper);border-radius:4px;grid-template-columns:minmax(0,1fr) auto auto;align-items:baseline;gap:12px;padding:4px 10px;display:grid}[data-course] .ec-keys-ladder li.is-start{background:var(--accent-soft);box-shadow:inset 0 0 0 1px var(--accent)}[data-course] .ec-keys-p{color:var(--heading);font-size:1rem;font-weight:700}[data-course] .ec-keys-d{color:var(--muted);font-size:var(--t-label)}[data-course] .ec-keys-v{min-width:4.2em;color:var(--up-ink);text-align:right;font-size:1rem;font-weight:700}[data-course] .ec-keys-ladder li.is-start .ec-keys-d{color:var(--accent-ink);font-weight:700}[data-course] .ec-keys-ladder li.is-start .ec-keys-v{color:var(--muted);font-weight:500}[data-course] .ec-tip{color:var(--text);font-size:var(--t-small);line-height:var(--lh-small);margin:0}[data-course] .ec-tip-k{color:var(--accent-ink);align-items:baseline;gap:8px;margin-right:4px;font-weight:700;display:inline-flex}[data-course] .ec-tip b.ec-num{color:var(--heading)}[data-course] .ec-tickmark{--tr:var(--accent);background:linear-gradient(var(--tr), var(--tr)) 0 100% / 100% 2px no-repeat, linear-gradient(var(--tr), var(--tr)) 0 0 / 2px 100% no-repeat, linear-gradient(var(--tr), var(--tr)) 100% 0 / 2px 100% no-repeat, linear-gradient(var(--tr), var(--tr)) 5px 100% / 2px 50% no-repeat, linear-gradient(var(--tr), var(--tr)) 10px 100% / 2px 50% no-repeat, linear-gradient(var(--tr), var(--tr)) 15px 100% / 2px 50% no-repeat;flex:none;width:22px;height:9px;display:inline-block}@media (min-width:1024px){[data-course] .ec-side .ec-tip-k{align-items:center;margin:0 0 6px;display:flex}}[data-course] .ec-objectives{z-index:2;border:1px solid var(--line);background:var(--card);border-radius:12px;padding:22px 20px;position:relative;box-shadow:0 1px 2px #08132f14,0 24px 48px -28px #08132f8c;margin-top:calc(-1 * var(--overlap))!important;grid-column:text-start/note-end!important}@media (min-width:640px){[data-course] .ec-objectives{padding:28px 32px 30px}}[data-course] .ec-objectives-title{color:var(--heading);font-size:var(--t-h3);line-height:var(--lh-h3);margin:0 0 16px;font-weight:700}[data-course] .ec-objectives-list{counter-reset:obj;font-size:var(--t-small);line-height:var(--lh-small);gap:14px;margin:0;padding:0;list-style:none;display:grid}@media (min-width:900px){[data-course] .ec-objectives-list{grid-template-columns:1fr 1fr;gap:18px 40px}}[data-course] .ec-objectives-list li{counter-increment:obj;text-wrap:wrap;padding-left:42px;position:relative}[data-course] .ec-hero-obj{display:none}@media (max-width:639px){[data-course] .ec-hero-lead{display:none}[data-course] .ec-hero-obj{color:var(--on-dark-body);font-size:var(--t-small);margin:14px 0 0;line-height:1.5rem;display:block}[data-course] .ec-objectives{display:none}[data-course] .ec-hero{padding-bottom:0}[data-course] .ec-opener{margin-top:32px}}[data-course] .ec-objectives-list li:before{content:counter(obj);background:var(--navy);color:#fff;width:28px;height:28px;font-size:var(--t-cap);font-variant-numeric:tabular-nums;border-radius:8px;place-items:center;font-weight:700;display:grid;position:absolute;top:0;left:0}[data-course] .ec-callout{color:var(--text);font-size:var(--t-small);line-height:var(--lh-small);grid-column:wide!important;margin-top:32px!important}[data-course] .ec-callout p,[data-course] .ec-callout dl,[data-course] .ec-callout dd{margin:0}[data-course] .ec-callout-title{color:var(--heading);align-items:center;gap:12px;font-size:1.0625rem;font-weight:700;line-height:1.5rem;display:flex;margin:0 0 12px!important}[data-course] .ec-cicon{background:var(--heading);--ico:var(--ico-bang);border-radius:50%;flex:none;width:22px;height:22px;position:relative}[data-course] .ec-cicon--risk{background:var(--down)}[data-course] .ec-callout--mistake{border:1px solid var(--line);background:var(--card);border-radius:12px;padding:18px 20px 8px}[data-course] .ec-wr-row{padding:12px 0 14px}[data-course] .ec-wr-row+.ec-wr-row{border-top:1px dashed var(--line-strong)}[data-course] .ec-wr-row dt{color:var(--heading);vertical-align:top;align-items:center;gap:12px;margin-right:10px;font-weight:700;display:inline-flex}[data-course] .ec-wr-row dd{display:inline}[data-course] .ec-wr-row .ec-mark{margin-top:0}[data-course] .ec-wr-row.is-wrong s{color:var(--muted);text-decoration-line:line-through;text-decoration-color:#b423188c;text-decoration-thickness:1.5px}[data-course] .ec-wr-row.is-right dd{color:var(--heading)}[data-course] .ec-wr-row.is-right b{font-variant-numeric:tabular-nums;font-weight:700}@media (min-width:640px){[data-course] .ec-callout--mistake{padding:22px 28px 10px}[data-course] .ec-wr-row{grid-template-columns:112px minmax(0,1fr);align-items:start;padding:14px 0 16px;display:grid}[data-course] .ec-wr-row dt{margin:0}[data-course] .ec-wr-row dd{display:block}}@media (min-width:1024px){[data-course] .ec-callout--mistake{font-size:1.0625rem;line-height:1.75rem}}[data-course] .ec-callout--risk{background:var(--panel);color:var(--on-dark-body);box-shadow:var(--shadow-fig);border-radius:12px;gap:16px;padding:20px 20px 22px;display:grid}[data-course] .ec-callout--risk .ec-callout-title{color:var(--on-dark-head)}[data-course] .ec-risk-fig{grid-template-columns:1fr 1fr;align-content:start;gap:4px 16px;display:grid}[data-course] .ec-risk-k{color:var(--on-dark-muted);font-size:var(--t-label);grid-column:1/-1;line-height:1.25rem}[data-course] .ec-risk-row{align-items:baseline;gap:10px;display:flex}[data-course] .ec-risk-sym{color:var(--accent-bright);font-size:1rem;font-weight:700}[data-course] .ec-risk-v{color:var(--on-dark-strong);font-variant-numeric:tabular-nums;letter-spacing:-.01em;font-size:1.75rem;font-weight:700;line-height:2.25rem}[data-course] .ec-risk-body>p+p{margin-top:10px}[data-course] .ec-risk-more{font-size:var(--t-label);line-height:1.25rem}[data-course] .ec-risk-more a{color:var(--accent-pale);text-underline-offset:3px}[data-course] .ec-risk-more a:hover{color:#fff}[data-course] .ec-callout--risk .ec-gl{color:var(--on-dark-strong);-webkit-text-decoration-color:var(--accent-bright);text-decoration-color:var(--accent-bright)}[data-course] .ec-callout--risk .ec-gl:hover{color:var(--accent-pale)}[data-course] .ec-callout--risk .ec-gl:focus-visible{outline-color:var(--accent-bright)}@media (scripting:enabled){[data-course] .ec-callout--risk .ec-gl-pop{background:#16244a;box-shadow:0 0 0 1px #ffffff24,0 18px 40px -12px #000000b3}}[data-course] .ec-callout--risk.is-words{grid-template-columns:minmax(0,1fr)!important}[data-course] .ec-callout--risk.is-words .ec-risk-body{max-width:40em}@media (min-width:640px){[data-course] .ec-callout--risk{grid-template-columns:minmax(180px,220px) minmax(0,1fr);column-gap:32px;padding:24px 28px 26px}[data-course] .ec-risk-fig{grid-template-columns:1fr}[data-course] .ec-risk-row{justify-content:space-between}}@media (min-width:1024px){[data-course] .ec-callout--risk{grid-template-columns:260px minmax(0,1fr);column-gap:40px;padding:28px 32px 30px;font-size:1.0625rem;line-height:1.75rem}[data-course] .ec-risk-v{font-size:2rem;line-height:2.5rem}}[data-course] .ec-mark{border-radius:50%;flex:none;width:22px;height:22px;margin-top:2px;display:block;position:relative}[data-course] .ec-mark--no{--ico:var(--ico-cross);background:var(--bad-ink)}[data-course] .ec-mark--yes{--ico:var(--ico-check);background:var(--ok-ink)}[data-course] .ec-rule{background:var(--panel);color:var(--on-dark-body);box-shadow:var(--shadow-fig);border-radius:12px;padding:20px 20px 22px;grid-column:text-start/note-end!important;margin-top:24px!important}@media (min-width:640px){[data-course] .ec-rule{padding:24px 32px 26px}}[data-course] .ec-rule p{margin:0}[data-course] .ec-rule-eq{color:var(--on-dark-head);letter-spacing:-.01em;flex-wrap:wrap;align-items:baseline;gap:4px 12px;font-size:1.375rem;font-weight:700;line-height:1.875rem;display:flex}@media (min-width:640px){[data-course] .ec-rule-eq{font-size:1.75rem;line-height:2.25rem}}[data-course] .ec-rule-op{color:var(--on-dark-muted);font-weight:400}@media (max-width:639px){[data-course] .ec-rule-eq{grid-template-columns:auto minmax(0,1fr);column-gap:10px;display:grid}[data-course] .ec-rule-eq>:first-child{grid-column:1/-1}}[data-course] .ec-rule-rhs{color:var(--accent-bright);text-wrap:balance}[data-course] .ec-more{grid-column:wide!important;margin-top:28px!important}[data-course] .ec-more>summary{border:1px solid var(--line-strong);width:100%;min-height:48px;color:var(--heading);cursor:pointer;background:0 0;border-radius:4px;justify-content:space-between;align-items:center;gap:16px;padding:0 18px;font-size:1rem;font-weight:700;list-style:none;transition:background-color .12s,border-color .12s;display:flex}@media (min-width:640px){[data-course] .ec-more>summary{justify-content:flex-start;width:auto;display:inline-flex}}[data-course] .ec-more>summary::-webkit-details-marker{display:none}[data-course] .ec-more>summary:after{content:"";width:8px;height:8px;transition:transform .2s var(--ease);border-bottom:2px solid;border-right:2px solid;margin-top:-4px;transform:rotate(45deg)}[data-course] .ec-more[open]>summary:after{margin-top:4px;transform:rotate(-135deg)}[data-course] .ec-more>summary:hover{background:var(--card);border-color:var(--accent)}[data-course] .ec-more--aside{margin-top:12px!important}[data-course] .ec-more--aside>summary{min-height:44px;color:var(--link);border-color:#0000;padding:0 4px}[data-course] .ec-more--aside>summary:hover{color:var(--accent-ink);text-underline-offset:4px;background:0 0;border-color:#0000;text-decoration:underline}[data-course] .ec-more-body{background:var(--paper-deep);font-size:var(--t-small);line-height:var(--lh-small);border-radius:12px;margin-top:12px;padding:16px 20px 18px}[data-course] .ec-more-body>p{font-variant-numeric:tabular-nums;margin:0}[data-course] .ec-more-body>p+p{margin-top:12px}[data-course] .ec-more-body b{color:var(--heading)}[data-course] .ec-math .ec-more-body{background:var(--panel);color:var(--on-dark-body);box-shadow:var(--shadow-fig);padding:22px 20px 24px}[data-course] .ec-work{gap:18px;display:grid}[data-course] .ec-work p{margin:0}[data-course] .ec-work-rule{color:var(--on-dark-head);font-size:1.0625rem;font-weight:700;line-height:1.625rem}[data-course] .ec-work-note{color:var(--on-dark-muted)}[data-course] .ec-work-note a,[data-course] .ec-work-note .ec-xref{color:var(--accent-pale)}[data-course] .ec-xref,[data-course] .ec-lede-text a:not([class]){padding-block:3px}[data-course] .ec-work-row{gap:4px;display:grid}[data-course] .ec-work-k{color:var(--on-dark-muted);font-size:var(--t-label);font-weight:700;line-height:1.25rem}[data-course] .ec-work-k.is-sym{color:var(--accent-bright);font-size:1rem}[data-course] .ec-work-v{gap:6px;display:grid}[data-course] .ec-work-v>p{color:var(--on-dark-body)}[data-course] .ec-math .ec-eq{font-size:1.125rem;line-height:1.75rem}@media (min-width:640px){[data-course] .ec-math .ec-more-body{padding:26px 28px 28px}[data-course] .ec-work-row{grid-template-columns:136px minmax(0,1fr);align-items:baseline;column-gap:24px}[data-course] .ec-work-k.is-sym{font-size:1.0625rem}}@media (min-width:1024px){[data-course] .ec-math .ec-more-body{padding:30px 32px 32px}[data-course] .ec-work--table{grid-template-columns:max-content repeat(3,max-content);justify-content:start;column-gap:40px}[data-course] .ec-work--table>p{grid-column:1/-1}[data-course] .ec-work--table .ec-work-row{grid-column:1/-1;grid-template-columns:subgrid}[data-course] .ec-work--table .ec-work-v{display:contents}}[data-course] .ec-eq{white-space:nowrap;font-variant-numeric:tabular-nums}[data-course] .ec-eq-n{color:var(--heading);font-weight:500}[data-course] .ec-eq-op{color:var(--muted);padding:0 2px}[data-course] .ec-eq-u{color:var(--muted)}[data-course] .ec-eq-r{color:var(--heading);font-weight:700}[data-course] .ec-math .ec-eq-n{color:var(--on-dark-head)}[data-course] .ec-math .ec-eq-op,[data-course] .ec-math .ec-eq-u{color:var(--on-dark-muted)}[data-course] .ec-math .ec-eq-r{color:#fff;font-size:1.1em}@media (max-width:359px){[data-course] .ec-eq{white-space:normal}}[data-course] .ec-gl-wrap{white-space:nowrap;position:relative}[data-course] .ec-gl-pop{white-space:normal}[data-course] .ec-gl:not([disabled]){position:relative}[data-course] .ec-gl:not([disabled]):after{content:"";width:max(44px,100% + 4px);height:44px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}[data-course] .ec-gl{color:var(--heading);font:inherit;-webkit-text-decoration:underline dotted;text-decoration:underline dotted;-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent);text-underline-offset:4px;cursor:help;background:0 0;border:0;padding:0;font-weight:700;text-decoration-thickness:2px}[data-course] .ec-gl:hover{color:var(--link)}[data-course] .ec-gl:not([disabled]){border-radius:4px;margin:0 -3px -4px;padding:0 3px 5px}[data-course] .ec-gl:focus-visible{outline:2px solid var(--accent);outline-offset:-1px}[data-course] .ec-fig .ec-gl:focus-visible,[data-course] .ec-quizset .ec-gl:focus-visible{outline-color:var(--accent-bright)}[data-course] .ec-gl[disabled]{cursor:text;text-decoration:none}@media (scripting:none){[data-course] .ec-gl-pop{color:var(--muted);font-size:.9em;display:inline}[data-course] .ec-gl-pop:before{content:" ("}[data-course] .ec-gl-pop:after{content:")"}[data-course] .ec-gl-term{display:none}}@media (scripting:enabled){[data-course] .ec-gl-pop:not([data-open]){display:none}[data-course] .ec-gl-pop{z-index:30;background:var(--navy);width:min(320px,100vw - 32px);color:var(--on-dark-body);text-align:left;white-space:normal;transform:translateX(var(--ec-pop-shift,0px));border-radius:12px;padding:14px 16px 16px;font-size:1rem;font-weight:400;line-height:1.5rem;position:absolute;top:calc(100% + 10px);left:0;box-shadow:0 18px 40px -16px #08132f99}[data-course] .ec-fig .ec-gl-pop,[data-course] .ec-quizset .ec-gl-pop{background:#16244a;box-shadow:0 0 0 1px #ffffff24,0 18px 40px -12px #000000b3}}@media (scripting:none){[data-course] .ec-chart-head .ec-gl-pop{display:none}}[data-course] .ec-gl-term{color:var(--on-dark-head);margin-bottom:4px;font-size:1.0625rem;font-weight:700;display:block}[data-course] .ec-fig{--fig-pad-x:16px;--fig-pad-y:20px;padding:var(--fig-pad-y) var(--fig-pad-x) calc(var(--fig-pad-y) + 2px);background:var(--panel);color:var(--on-dark-body);font-size:var(--t-small);line-height:var(--lh-small);position:relative;container:ecfig/inline-size;margin:40px 0 0!important}[data-course] .ec-fig.is-wide{grid-column:full}@media (max-width:639px){[data-course] .ec-fig{grid-column:full}}@media (min-width:640px){[data-course] .ec-fig{--fig-pad-x:28px;--fig-pad-y:24px;box-shadow:var(--shadow-fig);border-radius:12px}[data-course] .ec-fig.is-wide{grid-column:wide}}@media (min-width:1280px){[data-course] .ec-fig{--fig-pad-x:32px;--fig-pad-y:28px}}[data-course] .ec-fig+*{margin-top:36px!important}@media (max-width:639px){[data-course] .ec-fig{margin-top:32px!important}[data-course] .ec-fig+*{margin-top:24px!important}[data-course] .ec-more{margin-top:16px!important}[data-course] .ec-callout{margin-top:20px!important}[data-course] .ec-fig-cap{margin-top:18px;padding-top:14px}[data-course] .ec-fig{--fig-pad-y:16px}[data-course] .ec-fig-head{margin-bottom:12px}[data-course] .ec-ctl{margin-top:16px}[data-course] .ec-sec>h2+p{margin-top:12px}[data-course] .ec-callout--mistake{padding:14px 16px 2px}[data-course] .ec-callout--mistake .ec-callout-title{margin-bottom:4px!important}[data-course] .ec-wr-row{padding:8px 0 10px}[data-course] .ec-callout--risk{padding:16px 16px 18px}[data-course] .ec-risk-fig{display:none}[data-course] .ec-callout--risk .ec-callout-title{margin-bottom:8px!important}[data-course] .ec-sec>h2+.ec-lede{margin-top:12px}[data-course] .ec-pager-link.is-pending .ec-pager-sum,[data-course] .ec-fig[data-fig=together]{display:none}}[data-course] .ec-fig-head{grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:8px 12px;margin-bottom:16px;display:grid}[data-course] .ec-fig-head>:not(.ec-fig-title){grid-area:1/2}[data-course] .ec-fig-title{min-width:0;color:var(--on-dark-head);margin:4px 0 0;font-size:1.125rem;font-weight:700;line-height:1.5rem}@media (min-width:1280px){[data-course] .ec-fig-title{font-size:1.25rem;line-height:1.625rem}}[data-course] .ec-watch{min-height:44px;color:var(--accent-pale);font-size:var(--t-label);cursor:pointer;background:#6b9bff1f;border:1px solid #6b9bff80;border-radius:4px;flex:none;align-items:center;gap:8px;padding:0 14px;font-weight:700;transition:background-color .12s,border-color .12s;display:inline-flex}[data-course] .ec-watch:hover{border-color:var(--accent-bright);color:#fff;background:#6b9bff3d}@media (pointer:coarse){[data-course] .ec-watch{min-height:48px}}[data-course] .ec-chart-head{color:var(--on-dark-muted);font-size:var(--t-cap);flex-wrap:wrap;align-items:baseline;gap:2px 12px;margin:0 0 10px;font-weight:500;line-height:1.25rem;display:flex}[data-course] .ec-chart-head .ec-gl{color:var(--on-dark-head);-webkit-text-decoration-color:var(--accent-bright);text-decoration-color:var(--accent-bright);font-weight:500}[data-course] .ec-legend{color:var(--on-dark-body);font-size:var(--t-cap);flex-wrap:wrap;gap:6px 18px;margin:10px 0 0;line-height:1.25rem;display:flex}[data-course] .ec-legend span{align-items:center;gap:8px;display:inline-flex}[data-course] .ec-legend i{border:1.5px solid var(--up);border-radius:1px;width:9px;height:14px;display:inline-block}[data-course] .ec-legend i.is-down{border-color:var(--down);background:var(--down)}[data-course] .ec-fig-cap{border-top:1px solid var(--dark-line);color:var(--on-dark-body);font-size:var(--t-small);line-height:var(--lh-small);margin-top:22px;padding-top:16px}[data-course] .ec-fig-cap p{margin:0}[data-course] .ec-fig-cap p+p{margin-top:8px}[data-course] .ec-fig-cap b{color:var(--on-dark-head)}[data-course] .ec-fig a:not([class]){color:var(--accent-pale)}[data-course] .ec-fig-small{color:var(--on-dark-muted);font-size:var(--t-cap);line-height:1.25rem}[data-course] .ec-fig-small .ec-xref,[data-course] .ec-fig-small a:not([class]){padding-block:5px}[data-course] .ec-narrate{min-height:calc(3rem + 28px);box-shadow:inset 0 0 0 1px var(--dark-line);color:var(--on-dark-head);background:#ffffff0d;border-radius:8px;margin:18px 0 0;padding:14px 16px;font-size:1.0625rem;font-weight:500;line-height:1.5rem}@media (min-width:640px){[data-course] .ec-narrate{min-height:calc(1.5rem + 28px);padding:14px 20px}}[data-course] .ec-ctl{gap:16px;margin-top:20px;display:grid}[data-course] .ec-ctl-group{border:0;align-content:start;gap:8px;min-width:0;margin:0;padding:0;display:grid}[data-course] .ec-ctl-label{color:var(--on-dark-muted);font-size:var(--t-cap);margin:0;padding:0;font-weight:500;line-height:1.125rem}[data-course] .ec-ctl-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}[data-course] .ec-ctl-row--end{border-top:1px solid var(--dark-line);padding-top:16px}[data-course] .ec-ctl-row--fill>[data-reset],[data-course] .ec-ctl-row--nudge>[data-reset]{margin-left:auto}[data-course] .ec-ctl-row.ec-row-4{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}[data-course] .ec-ctl-row.ec-row-3{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}[data-course] .ec-ctl-row.ec-row-4>*,[data-course] .ec-ctl-row.ec-row-3>*{width:100%;padding-left:10px;padding-right:10px}@container ecfig (max-width:560px){[data-course] .ec-ctl-row,[data-course] .ec-presets.ec-presets--grid{grid-template-columns:1fr 1fr;display:grid}[data-course] .ec-ctl-row.ec-row-4{grid-template-columns:1fr 1fr}[data-course] .ec-ctl-row.ec-row-3{grid-template-columns:repeat(3,minmax(0,1fr))}[data-course] .ec-ctl-row--nudge{grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto}[data-course] .ec-ctl-row--play{grid-template-columns:minmax(0,1fr)}[data-course] .ec-ctl-row>.ec-cbtn,[data-course] .ec-ctl-row>.ec-chip,[data-course] .ec-presets.ec-presets--grid>.ec-chip{width:100%;padding-left:10px;padding-right:10px}[data-course] .ec-ctl-row--nudge>[data-reset]{width:auto;padding-left:16px;padding-right:16px}[data-course] .ec-ctl-row>.ec-nudges{order:-1;grid-column:1/-1;grid-template-columns:1fr 1fr;display:grid}[data-course] .ec-ctl-row>.ec-nudges .ec-cbtn{width:100%}[data-course] .ec-ctl-row--end>.ec-cbtn--ghost,[data-course] .ec-ctl-row--fill>[data-reset],[data-course] .ec-ctl-row--nudge>[data-reset]{margin-left:0}}[data-course] .ec-chips--pairs{--cols:4}@container ecfig (max-width:760px){[data-course] .ec-chips--pairs{--cols:2}}[data-course] .ec-ctl-row--end>.ec-cbtn--ghost{margin-left:auto}[data-course] .ec-cbtn{border:1px solid var(--ctl-line);background:var(--ctl-bg);color:#fff;white-space:nowrap;cursor:pointer;border-radius:4px;justify-content:center;align-items:center;gap:10px;min-height:48px;padding:0 18px;font-size:1rem;font-weight:700;line-height:1.1;transition:background-color .12s,border-color .12s,transform .12s,opacity .12s;display:inline-flex}[data-course] .ec-cbtn:hover{background:var(--ctl-bg-hover);border-color:var(--ctl-line-hover)}[data-course] .ec-cbtn:active{transform:translateY(1px)}[data-course] .ec-cbtn--primary{background:var(--accent);border-color:var(--accent)}[data-course] .ec-cbtn--primary:hover{background:#4574ff;border-color:#4574ff}[data-course] .ec-cbtn--ghost{background:0 0}[data-course] .ec-cbtn--ghost:hover{background:#ffffff12}[data-course] .ec-cbtn[aria-disabled=true]{opacity:.42;cursor:not-allowed}[data-course] .ec-cbtn[aria-disabled=true]:active{transform:none}[data-course] .ec-nudge-glyph{clip-path:polygon(0 0,100% 0,50% 100%);background:currentColor;flex:none;width:.75em;height:.5em;display:inline-block}[data-course] .ec-nudge-glyph.is-up{clip-path:polygon(50% 0,100% 100%,0 100%)}[data-course] .ec-cbtn--sm{min-height:44px;padding:0 16px;font-size:.9375rem}@media (pointer:coarse){[data-course] .ec-cbtn--sm{min-height:48px}}[data-course] .ec-chip{border:1px solid var(--ctl-line);background:var(--ctl-bg);color:#fff;text-align:center;white-space:nowrap;cursor:pointer;border-radius:8px;justify-content:center;align-items:center;min-height:48px;padding:0 16px;font-size:.9375rem;font-weight:700;line-height:1.2;transition:background-color .12s,border-color .12s,color .12s,transform .12s;display:inline-flex;position:relative}[data-course] .ec-chip:hover{background:var(--ctl-bg-hover);border-color:var(--ctl-line-hover)}[data-course] .ec-chip:active{transform:translateY(1px)}[data-course] .ec-chip-check{display:none}[data-course] .ec-chip[aria-checked=true],[data-course] .ec-chip[aria-pressed=true]{border-color:var(--accent-bright);background:var(--accent-bright);color:var(--navy)}[data-course] .ec-chip[aria-checked=true]:hover,[data-course] .ec-chip[aria-pressed=true]:hover{background:#8db3ff;border-color:#8db3ff}[data-course] .ec-chip:focus-visible{outline:2px solid var(--accent-bright);outline-offset:3px}[data-course] .ec-chip[aria-disabled=true]{opacity:.42;cursor:not-allowed}[data-course] .ec-chips{grid-template-columns:repeat(var(--cols,4), minmax(0, 1fr));gap:8px;display:grid}[data-course] .ec-chips.ec-chips--2{--cols:2;max-width:440px}[data-course] .ec-chips--wrap{flex-wrap:wrap;display:flex}[data-course] .ec-chip--sym{white-space:normal;text-align:left;place-content:start stretch;justify-items:start;gap:1px;min-height:64px;padding:10px 12px 9px;display:grid}[data-course] .ec-chip-sym{letter-spacing:.01em;max-width:100%;font-size:1.25rem;font-weight:700;line-height:1.5rem}[data-course] .ec-chip-sub{color:var(--on-dark-body);font-size:var(--t-cap);text-wrap:balance;font-weight:400;line-height:1.0625rem}[data-course] .ec-chip[aria-checked=true] .ec-chip-sub,[data-course] .ec-chip[aria-pressed=true] .ec-chip-sub{color:var(--navy);font-weight:500}@container ecfig (max-width:420px){[data-course] .ec-chip--sym{padding:9px 10px 8px}[data-course] .ec-chip--sym .ec-chip-sym{font-size:1.125rem}}[data-course] .ec-stepper{grid-template-columns:1fr 1fr;align-items:center;gap:8px;display:grid}[data-course] .ec-stepper-status{color:var(--on-dark-body);font-size:var(--t-label);font-variant-numeric:tabular-nums;grid-area:1/1/auto/-1;justify-items:center;gap:6px;font-weight:500;line-height:1.25rem;display:grid}[data-course] .ec-stepper [data-step=prev],[data-course] .ec-stepper [data-step=next]{grid-row:2}@media (min-width:640px){[data-course] .ec-stepper{grid-template-columns:auto 1fr auto;gap:16px}[data-course] .ec-stepper-status,[data-course] .ec-stepper [data-step=prev],[data-course] .ec-stepper [data-step=next]{grid-area:1}}[data-course] .ec-steps{gap:4px;width:min(100%,168px);display:flex}[data-course] .ec-steps span{background:#ffffff2e;border-radius:999px;flex:1 1 0;height:4px}[data-course] .ec-steps span.is-on{background:var(--accent-bright)}[data-course] .ec-tickbtn{color:#fff;cursor:pointer;background:0 0;border:0;border-radius:8px;place-items:center;padding:0;font-size:1.375rem;font-weight:500;display:grid}[data-course] .ec-tickbtn:hover{background:#ffffff1a}[data-course] .ec-input{color:#fff;width:100%;min-width:0;height:100%;font:inherit;text-align:center;font-variant-numeric:tabular-nums;background:0 0;border:0;padding:0 4px;font-size:1.25rem;font-weight:700}[data-course] .ec-input:focus{outline:none}[data-course] .ec-live{margin:0}[data-course] .ec-guess{border-top:1px solid var(--dark-line);margin-top:20px;padding-top:20px}[data-course] .ec-guess-groups{grid-template-columns:minmax(0,1fr);gap:10px;display:grid}[data-course] .ec-guess-q{color:var(--on-dark-head);margin:0;font-size:1.0625rem;font-weight:700;line-height:1.5rem}[data-course] .ec-guess-q--times{margin-top:12px}@container ecfig (min-width:700px){[data-course] .ec-guess-groups{grid-template-rows:auto auto;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);align-items:end;gap:10px 28px}[data-course] .ec-guess-q--who{grid-area:1/1}[data-course] .ec-gcards--who{grid-area:2/1}[data-course] .ec-guess-q--times{grid-area:1/2;margin-top:0}[data-course] .ec-gcards--times{grid-area:2/2}[data-course] .ec-gcards{align-self:start}}[data-course] .ec-gcards{gap:8px;display:grid}[data-course] .ec-gcards--who{grid-template-columns:repeat(2,minmax(0,1fr))}[data-course] .ec-gcards--times{grid-template-columns:repeat(4,minmax(0,1fr))}[data-course] .ec-gcard{border:1px solid var(--ctl-line);background:var(--ctl-bg);color:#fff;min-height:64px;font:inherit;text-align:left;cursor:pointer;border-radius:8px;grid-template-columns:32px minmax(0,1fr);align-items:center;column-gap:12px;padding:10px 14px 10px 12px;transition:border-color .12s,background-color .12s,box-shadow .12s,transform .12s;display:grid;position:relative}[data-course] .ec-gcard:hover{background:var(--ctl-bg-hover);border-color:var(--ctl-line-hover)}[data-course] .ec-gcard:active{transform:translateY(1px)}[data-course] .ec-gcard:focus-visible{outline:2px solid var(--accent-bright);outline-offset:3px}[data-course] .ec-gcard-l{width:32px;height:32px;box-shadow:inset 0 0 0 1px var(--dark-line-strong);color:var(--on-dark-head);background:#ffffff14;border-radius:8px;place-items:center;font-size:.9375rem;font-weight:700;display:grid}[data-course] .ec-gcard-t{color:#fff;font-size:1.0625rem;font-weight:700;line-height:1.375rem;display:grid}[data-course] .ec-gcard-s{color:var(--on-dark-body);font-size:var(--t-cap);font-weight:400;line-height:1.125rem}[data-course] .ec-gcard-state{font-size:var(--t-label);grid-column:2;align-items:center;gap:8px;margin-top:6px;font-weight:700;line-height:1.25rem;display:none}[data-course] .ec-gcard-state:not(:empty){display:flex}[data-course] .ec-gcard-state .ec-mark,[data-course] .ec-gcard-mark .ec-mark{width:20px;height:20px;margin:0}[data-course] .ec-gcard--n{text-align:center;grid-template-columns:minmax(0,1fr);place-items:center;padding:10px 6px;display:grid}[data-course] .ec-gcard-v{letter-spacing:-.01em;font-size:1.5rem;font-weight:700;line-height:2rem}[data-course] .ec-gcard-mark{position:absolute;top:6px;right:6px}[data-course] .ec-gcard-mark:empty{display:none}[data-course] .ec-gcard[aria-checked=true]:not(.is-right):not(.is-wrong){border-color:var(--accent-bright);background:var(--accent-bright);box-shadow:none;color:var(--navy)}[data-course] .ec-gcard[aria-checked=true]:not(.is-right):not(.is-wrong):hover{background:#8db3ff;border-color:#8db3ff}[data-course] .ec-gcard[aria-checked=true]:not(.is-right):not(.is-wrong) :is(.ec-gcard-t,.ec-gcard-v,.ec-gcard-s){color:var(--navy)}[data-course] .ec-gcard[aria-checked=true]:not(.is-right):not(.is-wrong) .ec-gcard-s{font-weight:500}[data-course] .ec-gcard[aria-checked=true]:not(.is-right):not(.is-wrong) .ec-gcard-l{background:var(--navy);box-shadow:none;color:#fff}[data-course] .ec-gcards .ec-gcard.is-right{border-color:var(--up);box-shadow:inset 0 0 0 1px var(--up);background:#26a69a29}[data-course] .ec-gcard.is-right .ec-gcard-l{background:var(--up);box-shadow:none;color:var(--navy)}[data-course] .ec-gcard.is-right .ec-gcard-state{color:#7fe0d6}[data-course] .ec-gcards .ec-gcard.is-wrong{background:#ef535024;border-color:#ff8a87;box-shadow:inset 0 0 0 1px #ff8a87}[data-course] .ec-gcard.is-wrong .ec-gcard-l{box-shadow:none;color:var(--navy);background:#ff8a87}[data-course] .ec-gcard.is-wrong .ec-gcard-state{color:var(--err-on-dark)}[data-course] .ec-gcard .ec-mark--yes{background:var(--up)}[data-course] .ec-gcard .ec-mark--no{--ico-ink:var(--navy);background:#ff8a87}[data-course] .ec-reveal{margin-top:18px}[data-course] .ec-reveal>summary{list-style:none}[data-course] .ec-reveal>summary::-webkit-details-marker{display:none}@media (max-width:639px){[data-course] .ec-reveal>summary{width:100%}}[data-course] .ec-guess-fb{color:var(--on-dark-head);margin:0 0 12px;font-weight:700}[data-course] .ec-guess-fb:empty{display:none}[data-course] .ec-guess-fb.is-right{color:#7fe0d6}[data-course] .ec-reveal-body{color:var(--on-dark-body);background:#6b9bff1a;border-radius:8px;margin-top:14px;padding:16px 18px 18px;box-shadow:inset 0 0 0 1px #6b9bff47}@media (scripting:none){[data-course] .ec-guess{margin-top:16px}}[data-course] .ec-worked{counter-reset:wk;font-size:var(--t-small);line-height:var(--lh-small);gap:10px;margin:0;padding:0;list-style:none;display:grid}[data-course] .ec-worked li{counter-increment:wk;font-variant-numeric:tabular-nums;padding-left:40px;position:relative}[data-course] .ec-worked li:before{content:counter(wk);width:26px;height:26px;color:var(--on-dark-head);font-size:var(--t-cap);background:#ffffff1a;border-radius:8px;place-items:center;font-weight:700;display:grid;position:absolute;top:1px;left:0}[data-course] .ec-worked li:first-child{color:var(--on-dark-head);font-weight:700}[data-course] .ec-worked-r{color:var(--up);font-size:1.125em}[data-course] .ec-worked a{color:var(--accent-pale)}[data-course] .ec-quiz-intro{margin-top:16px!important}[data-course] .ec-quizset{background:var(--panel);color:var(--on-dark-body);scroll-margin-top:calc(var(--bar-h) + 16px);padding:20px 16px 22px;position:relative;grid-column:text-start/note-end!important;margin-top:24px!important}@media (max-width:639px){[data-course] .ec-quizset{grid-column:full!important}}@media (min-width:640px){[data-course] .ec-quizset{box-shadow:var(--shadow-fig);border-radius:12px;padding:26px 32px 30px}}[data-course] .ec-qs-head{border-bottom:1px solid var(--dark-line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 16px;padding-bottom:16px;display:flex}[data-course] .ec-qs-count{color:var(--on-dark-muted);font-size:var(--t-label);margin:0;font-weight:500;line-height:1.25rem}[data-course] .ec-qs-count b{color:var(--on-dark-head)}[data-course] .ec-qs-track{align-items:center;margin:0;padding:0;list-style:none;display:flex}[data-course] .ec-qs-track li{width:30px;height:30px;box-shadow:inset 0 0 0 1.5px var(--ctl-line);color:var(--on-dark-muted);font-size:var(--t-cap);border-radius:50%;place-items:center;font-weight:700;display:grid;position:relative}[data-course] .ec-qs-track li+li{margin-left:22px}[data-course] .ec-qs-track li+li:before{content:"";background:var(--dark-line-strong);width:22px;height:1.5px;margin-top:-.75px;position:absolute;top:50%;right:100%}[data-course] .ec-qs-track li.is-current{box-shadow:inset 0 0 0 2px var(--accent-bright);color:#fff}[data-course] .ec-qs-track li.is-right{background:var(--up);box-shadow:none;color:#0000;--ico:var(--ico-check);--ico-box:22px}[data-course] .ec-qs-track li.is-shown{background:var(--ctl-bg-hover);box-shadow:none;color:var(--on-dark-head)}[data-course] .ec-quiz{padding-top:18px}@media (scripting:none){[data-course] .ec-quiz+.ec-quiz{border-top:1px solid var(--dark-line);margin-top:22px;padding-top:26px}}[data-course] .ec-quiz-count{color:var(--on-dark-muted);font-size:var(--t-label);font-variant-numeric:tabular-nums;margin:0 0 8px;font-weight:500}@media (scripting:enabled){[data-course] .ec-quiz-count{display:none}}[data-course] .ec-quiz-q{color:var(--on-dark-head);letter-spacing:-.005em;scroll-margin-top:calc(var(--bar-h) + 24px);margin:0;font-size:1.25rem;font-weight:700;line-height:1.875rem}[data-course] .ec-quiz-q:focus{outline:none}[data-course] .ec-quiz-q:focus-visible{outline:2px solid var(--accent-bright);outline-offset:4px;border-radius:4px}@media (min-width:1280px){[data-course] .ec-quiz-q{font-size:1.5rem;line-height:2.125rem}}[data-course] .ec-quiz-note{color:var(--on-dark-muted);font-size:var(--t-label);margin:8px 0 0}[data-course] .ec-answers{border:0;grid-template-columns:minmax(0,1fr);gap:10px;min-width:0;margin:20px 0 0;padding:0;display:grid}[data-course] .ec-ans{border:1px solid var(--ctl-line);background:var(--ctl-bg);color:#fff;cursor:pointer;border-radius:8px;grid-template-columns:36px minmax(0,1fr);align-items:start;column-gap:14px;min-height:64px;padding:14px 16px;transition:border-color .12s,background-color .12s,box-shadow .12s,transform .12s;display:grid;position:relative}[data-course] .ec-ans input{opacity:0;pointer-events:none;position:absolute}[data-course] .ec-ans:hover{background:var(--ctl-bg-hover);border-color:var(--ctl-line-hover)}[data-course] .ec-ans:active{transform:translateY(1px)}[data-course] .ec-ans:has(input:focus-visible){outline:2px solid var(--accent-bright);outline-offset:2px}[data-course] .ec-ans-l{width:36px;height:36px;box-shadow:inset 0 0 0 1px var(--dark-line-strong);color:var(--on-dark-head);background:#ffffff14;border-radius:8px;place-items:center;font-size:1rem;font-weight:700;transition:background-color .12s,color .12s;display:grid}[data-course] .ec-ans-v{font-variant-numeric:tabular-nums;padding-top:5px;font-size:1.0625rem;font-weight:500;line-height:1.625rem;display:block}[data-course] .ec-ans-v.ec-num{white-space:normal}[data-course] .is-short .ec-ans-v{letter-spacing:-.01em;padding-top:2px;font-size:1.5rem;font-weight:700;line-height:2rem}[data-course] .ec-ans-state{font-size:var(--t-label);grid-column:2;align-items:center;gap:8px;margin-top:8px;font-weight:700;line-height:1.25rem;display:none}[data-course] .ec-ans-why{color:var(--on-dark-body);font-size:var(--t-small);line-height:var(--lh-small);grid-column:2;margin-top:6px;font-weight:400;display:none}[data-course] .ec-ans.is-picked{border-color:var(--sel-edge);background:var(--sel-bg);box-shadow:inset 0 0 0 1px var(--sel-edge)}[data-course] .ec-ans:has(input:checked){border-color:var(--sel-edge);background:var(--sel-bg);box-shadow:inset 0 0 0 1px var(--sel-edge)}[data-course] .ec-ans.is-picked .ec-ans-l{background:var(--accent-bright);box-shadow:none;color:var(--navy)}[data-course] .ec-ans:has(input:checked) .ec-ans-l{background:var(--accent-bright);box-shadow:none;color:var(--navy)}[data-course] .ec-answers .ec-ans.is-right{border-color:var(--up);box-shadow:inset 0 0 0 1px var(--up);background:#26a69a29}[data-course] .ec-answers .ec-ans.is-right .ec-ans-l{background:var(--up);box-shadow:none;color:var(--navy)}[data-course] .ec-ans.is-right .ec-ans-state{color:#7fe0d6;display:flex}[data-course] .ec-answers .ec-ans.is-wrong{background:#ef535024;border-color:#ff8a87;box-shadow:inset 0 0 0 1px #ff8a87}[data-course] .ec-answers .ec-ans.is-wrong .ec-ans-l{box-shadow:none;color:var(--navy);background:#ff8a87}[data-course] .ec-ans.is-wrong .ec-ans-state{color:var(--err-on-dark);display:flex}[data-course] .ec-ans .ec-mark{width:20px;height:20px;margin:0}[data-course] .ec-ans .ec-mark--yes{background:var(--up)}[data-course] .ec-ans .ec-mark--no{--ico-ink:var(--navy);background:#ff8a87}[data-course] .ec-ans.is-open .ec-ans-why{display:block}@media (scripting:none){[data-course] .ec-ans[data-correct] .ec-ans-why{display:block}[data-course] .ec-ans[data-correct]{border-color:var(--up)}}[data-course] .ec-answers.is-locked .ec-ans{cursor:default}[data-course] .ec-answers.is-locked .ec-ans:not(.is-right):not(.is-wrong){border-color:var(--dark-line);box-shadow:none;color:var(--on-dark-muted);background:#ffffff08}[data-course] .ec-answers.is-locked .ec-ans:hover:not(.is-right):not(.is-wrong){border-color:var(--dark-line)}[data-course] .ec-quiz-hint{color:var(--on-dark-head);font-size:var(--t-small);line-height:var(--lh-small);background:#6b9bff24;border-radius:8px;margin:14px 0 0;padding:12px 16px}[data-course] .ec-quiz-hint b{color:var(--accent-pale)}[data-course] .ec-quiz-actions{flex-wrap:wrap;gap:8px;margin-top:20px;display:flex}@media (max-width:639px){[data-course] .ec-quiz-actions .ec-cbtn{flex:1 1 0;padding:0 12px}}[data-course] .ec-quiz-msg{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;margin:-1px;position:absolute;overflow:hidden}[data-course] .ec-quiz.is-asking .ec-quiz-msg{clip:auto;white-space:normal;width:auto;height:auto;color:var(--err-on-dark);font-size:var(--t-small);margin:12px 0 0;font-weight:700;position:static}[data-course] .ec-qs-score{padding-top:20px}[data-course] .ec-qs-score:focus{outline:none}[data-course] .ec-qs-score-k{color:var(--accent-bright);font-size:var(--t-label);margin:0;font-weight:700}[data-course] .ec-qs-score-t{color:#fff;letter-spacing:-.01em;margin:4px 0 0;font-size:1.75rem;font-weight:700;line-height:2.25rem}[data-course] .ec-qs-score-list{font-size:var(--t-small);line-height:var(--lh-small);gap:10px;margin:18px 0 0;padding:0;list-style:none;display:grid}[data-course] .ec-qs-score-list li{grid-template-columns:20px minmax(0,1fr);align-items:start;gap:12px;display:grid}[data-course] .ec-qs-score-list .ec-mark{background:var(--up);width:20px;height:20px;margin-top:4px}[data-course] .ec-qs-score-list b{color:var(--on-dark-head)}[data-course] .ec-qs-dot{width:20px;height:20px;box-shadow:inset 0 0 0 1.5px var(--ctl-line);border-radius:50%;margin-top:4px}[data-course] a.ec-cbtn{color:#fff;text-decoration:none}[data-course] .ec-recap{gap:14px;padding:0;list-style:none;display:grid;grid-column:text-start/note-end!important;margin-top:20px!important}[data-course] .ec-recap li{font-size:var(--t-small);line-height:var(--lh-small);grid-template-columns:40px minmax(0,1fr);gap:16px;display:grid}@media (min-width:1024px){[data-course] .ec-recap{grid-template-columns:1fr 1fr;gap:28px 48px;margin-top:28px!important}}@media (min-width:1280px){[data-course] .ec-recap li{grid-template-columns:44px minmax(0,1fr);font-size:1.125rem;line-height:1.875rem}}[data-course] .ec-recap p{margin:0}[data-course] .ec-recap b{color:var(--heading)}[data-course] .ec-recap-n{background:var(--navy);color:#fff;border-radius:8px;place-items:center;width:36px;height:36px;font-size:1rem;font-weight:700;display:grid}[data-course] .ec-sheet{background:var(--navy-2);color:var(--on-dark-body);box-shadow:var(--shadow-fig);border-radius:12px;overflow:hidden;grid-column:text-start/note-end!important;margin-top:24px!important}@media (max-width:639px){[data-course] .ec-sheet{box-shadow:none;border-radius:0;grid-column:full!important}[data-course] .ec-sheet+.ec-sheet-note{margin-top:24px!important}}[data-course] .ec-sheet-scroll{overflow-x:auto}[data-course] .ec-sheet-scroll[tabindex]{outline-offset:-2px}[data-course] .ec-table,[data-course] .ec-ptable{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%;font-size:.9375rem;line-height:1.375rem}[data-course] .ec-table caption{caption-side:bottom;color:var(--on-dark-muted);font-size:var(--t-cap);text-align:left;padding:14px 16px 16px}[data-course] .ec-table th,[data-course] .ec-table td{text-align:left;vertical-align:top;padding:8px 16px}[data-course] .ec-table thead th{border-bottom:1px solid var(--dark-line-strong);color:var(--on-dark-muted);font-size:var(--t-cap);vertical-align:bottom;padding-top:16px;padding-bottom:12px;font-weight:500;line-height:1.125rem}[data-course] .ec-table tbody+tbody{border-top:1px solid var(--dark-line)}[data-course] .ec-table tbody tr:first-child>*{padding-top:14px}[data-course] .ec-table tbody tr:last-child>*,[data-course] .ec-table tbody tr.ec-table-more:nth-last-child(2)>*{padding-bottom:14px}[data-course] .ec-table tbody tr.ec-table-more td{color:var(--on-dark-muted);font-size:var(--t-cap);padding-top:0}[data-course] .ec-table th[scope=row]{background:var(--navy-2);color:#fff;font-weight:700;position:sticky;left:0}[data-course] .ec-table-sym{color:#fff;font-size:1.0625rem;font-weight:700;line-height:1.5rem;display:block}[data-course] .ec-table-sub{color:var(--on-dark-muted);font-size:var(--t-cap);font-weight:400;line-height:1.125rem;display:block}[data-course] .ec-table td{color:var(--on-dark-body)}[data-course] .ec-table .is-num{text-align:right;white-space:nowrap}[data-course] .ec-table td.is-num{color:#fff;font-weight:700}[data-course] .ec-table .is-wide{display:none}@media (min-width:1100px){[data-course] .ec-table .is-wide{display:table-cell}[data-course] .ec-table tr.ec-table-more{display:none}}@media (min-width:900px) and (max-width:1279px){[data-course] .ec-sheet{grid-column:wide!important}}[data-course] .ec-pairs{display:none}@media (max-width:639px){[data-course] .ec-table{display:none}[data-course] .ec-pairs{padding:4px 16px 0;display:block}[data-course] .ec-ptable+.ec-ptable{border-top:1px solid var(--dark-line)}[data-course] .ec-ptable th,[data-course] .ec-ptable td{text-align:left;vertical-align:bottom;padding:5px 0}[data-course] .ec-ptable thead th{vertical-align:top;padding-top:16px;padding-bottom:8px}[data-course] .ec-ptable thead th+th,[data-course] .ec-ptable td{text-align:right;width:32%;padding-left:10px}[data-course] .ec-ptable thead .ec-table-sym{font-size:1.1875rem}[data-course] .ec-ptable tbody th{color:var(--on-dark-muted);font-size:var(--t-cap);font-weight:400}[data-course] .ec-ptable td{color:#fff;white-space:nowrap;font-weight:700}[data-course] .ec-ptable tbody tr:last-child>*{padding-bottom:16px}[data-course] .ec-pairs-src{border-top:1px solid var(--dark-line);color:var(--on-dark-muted);font-size:var(--t-cap);margin:0;padding:12px 0 16px;line-height:1.25rem}}[data-course] .ec-sheet-note{color:var(--text);font-size:var(--t-small);line-height:var(--lh-small);margin:16px 0 0!important}[data-course] .ec-sheet-actions{margin-top:16px!important}[data-course] .ec-scroll-hint{color:var(--muted);font-size:var(--t-cap);margin:8px 16px 0}[data-course] .ec-done{background:var(--paper-deep);border-radius:12px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 24px;padding:18px 20px;display:flex;grid-column:text-start/note-end!important;margin-top:40px!important}[data-course] .ec-done-text{color:var(--text);font-size:var(--t-small);line-height:var(--lh-small);flex:320px;margin:0}[data-course] .ec-done.is-done{background:var(--ok-soft)}[data-course] .ec-done.is-done .ec-done-text{color:var(--ok-body)}@media (max-width:639px){[data-course] .ec-done .ec-btn{width:100%}}[data-course] .ec-pager{gap:12px;display:grid;grid-column:text-start/note-end!important;margin-top:24px!important}@media (min-width:768px){[data-course] .ec-pager{grid-template-columns:1fr 1fr;column-gap:24px}[data-course] .ec-pager-link--next{grid-column:2}}[data-course] .ec-pager-link{border:1px solid var(--line);background:var(--card);min-width:0;color:var(--heading);text-align:left;border-radius:12px;align-content:start;justify-items:start;gap:4px;padding:16px 20px 18px;text-decoration:none;display:grid}[data-course] a.ec-pager-link:hover{border-color:var(--accent)}[data-course] .ec-pager-link.is-pending{border:0;border-top:1px solid var(--line-strong);background:0 0;border-radius:0;padding:14px 0 4px}[data-course] .ec-pager-dir{color:var(--muted);font-size:var(--t-cap);align-items:center;gap:8px;font-weight:500;line-height:1.125rem;display:inline-flex}[data-course] .ec-pager-title{color:var(--heading);font-size:1.0625rem;font-weight:700;line-height:1.5rem}[data-course] .is-pending .ec-pager-title{color:var(--text);font-weight:500}[data-course] .ec-pager-sum{color:var(--muted);font-size:var(--t-label);line-height:1.3125rem}[data-course] .ec-foot{background:var(--navy);color:var(--on-dark-body)}[data-course] .ec-foot-in{max-width:1680px;padding:48px var(--gutter) 40px;margin:0 auto}[data-course] .ec-foot h2{color:var(--on-dark-head);margin:0 0 16px;font-size:1.1875rem;line-height:1.625rem}[data-course] .ec-disclosures{font-size:var(--t-tag);line-height:1.125rem}@media (min-width:640px){[data-course] .ec-disclosures{font-size:.875rem;line-height:1.375rem}}@media (min-width:1100px){[data-course] .ec-disclosures{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;column-gap:56px;display:grid}[data-course] .ec-disclosures>p:nth-child(2){grid-area:1/2/span 3}[data-course] .ec-disclosures>p:nth-child(3),[data-course] .ec-disclosures>p:nth-child(4){grid-column:1}}[data-course] .ec-disclosures p{margin:0 0 14px}[data-course] .ec-disclosures strong{color:var(--on-dark-head)}[data-course] .ec-foot-row{border-top:1px solid var(--dark-line);font-size:var(--t-label);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 24px;margin-top:28px;padding-top:20px;display:flex}[data-course] .ec-foot-row img{width:140px;height:auto}[data-course] .ec-foot-row p{color:var(--on-dark-muted);margin:0}[data-course] .ec-foot-row a{color:var(--accent-pale)}@media print{[data-course].ec-printing *{visibility:hidden}[data-course].ec-printing .ec-sheet-print,[data-course].ec-printing .ec-sheet-print *{visibility:visible}[data-course].ec-printing .ec-sheet-print{width:100%;position:absolute;top:0;left:0}[data-course].ec-printing .ec-sheet-actions{display:none}[data-course] .ec-table .is-wide{display:table-cell!important}[data-course] .ec-table tr.ec-table-more{display:none!important}[data-course] .ec-sheet{color:#000!important;box-shadow:none!important;background:#fff!important}[data-course] .ec-table{display:table!important}[data-course] .ec-pairs{display:none!important}[data-course] .ec-table th,[data-course] .ec-table td,[data-course] .ec-table caption,[data-course] .ec-table-sym,[data-course] .ec-table-sub,[data-course] .ec-table thead th,[data-course] .ec-table td.is-num{color:#000!important;background:#fff!important}[data-course] .ec-table thead th,[data-course] .ec-table tbody+tbody{border-color:#999!important}}@media (prefers-reduced-motion:reduce){[data-course] *,[data-course] :before,[data-course] :after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}html:not([data-track=forex]) [data-course] [data-track-only=forex],html[data-track=forex] [data-course] [data-track-only=futures]{display:none!important}[data-course] .ec-shot{margin:4px 0 24px}[data-course] .ec-shot img{border:1px solid var(--line);background:var(--card);border-radius:8px;max-width:100%;height:auto;display:block}[data-course] .ec-shot figcaption{color:var(--muted);font-size:var(--t-small);line-height:var(--lh-small);margin-top:8px}[data-course] .ec-do{gap:16px;margin-top:24px;padding:0;list-style:none;display:grid}[data-course] .ec-do-step{border:1px solid var(--line);background:var(--card);border-radius:12px;grid-template-columns:44px minmax(0,1fr);align-items:center;gap:0 14px;padding:20px 16px 22px;display:grid}[data-course] .ec-do-step--link{border-color:var(--accent-pale);background:var(--accent-soft)}[data-course] .ec-do-n{background:var(--navy);color:#fff;border-radius:50%;place-items:center;width:44px;height:44px;font-size:1.375rem;font-weight:700;line-height:1;display:grid}[data-course] .ec-do-t{color:var(--heading);letter-spacing:-.01em;margin:0;font-size:1.3125rem;font-weight:700;line-height:1.75rem}[data-course] .ec-do-body{grid-column:1/-1;min-width:0}[data-course] .ec-do-body>p,[data-course] .ec-do-body>dl{margin:14px 0 0}[data-course] .ec-do-go{justify-items:start;gap:12px;display:grid}[data-course] .ec-btn--big{white-space:normal;text-align:center;width:100%;min-height:56px;padding:0 28px;font-size:1.125rem}[data-course] .ec-do-ref{color:var(--muted);font-size:var(--t-small);line-height:var(--lh-small)}[data-course] .ec-do-two{gap:8px;display:grid}[data-course] .ec-do-two>div{border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:12px 14px}[data-course] .ec-do-two dt{color:var(--heading);font-weight:700}[data-course] .ec-do-two dd{margin:2px 0 0}[data-course] .ec-do-more a{min-height:24px;font-weight:700;display:inline-block}[data-course] .ec-do-body>.ec-ntform,[data-course] .ec-do-body>.eca-ntform{margin:16px 0 0}@media (min-width:640px){[data-course] .ec-do-step{grid-template-columns:48px minmax(0,1fr);gap:0 18px;padding:24px 28px 28px 22px}[data-course] .ec-do-n{width:48px;height:48px;font-size:1.5rem}[data-course] .ec-do-t{font-size:1.5rem;line-height:2rem}[data-course] .ec-do-body{grid-column:2}[data-course] .ec-btn--big{width:auto;min-width:320px}[data-course] .ec-do-two{grid-template-columns:repeat(2,minmax(0,1fr))}}[data-course] .ec-ntform{border:1px solid var(--line-strong);background:var(--card);border-radius:12px;padding:20px}[data-course] .ec-ntform>p{margin:0}[data-course] .ec-ntform>p+p{margin-top:10px}[data-course] .ec-ntform-k{color:var(--accent-ink);font-size:var(--t-label);font-weight:700}[data-course] .ec-screens>.ec-screens-t{color:var(--heading);font-size:var(--t-h3);line-height:var(--lh-h3);scroll-margin-top:calc(var(--bar-h) + 24px);margin-top:40px;font-weight:700}[data-course] .ec-screens>.ec-screens-t+p{margin-top:12px}[data-course] .ec-screens-back a{min-height:24px;font-weight:700;display:inline-block}@media (min-width:640px){[data-course] .ec-screens>.ec-screens-t{margin-top:48px}}[data-course] .ec-anatomy.ec-anatomy--phone{justify-items:center;gap:20px;padding:24px 16px;display:grid}[data-course] .ec-anatomy--phone .ec-anatomy-svg{aspect-ratio:212/320;width:100%;max-width:398px;height:auto;margin:0}[data-course] .ec-phone-keys{width:100%;max-width:398px;color:var(--on-dark-body);font-size:var(--t-small);line-height:var(--lh-small);gap:14px;margin:0;padding:0;list-style:none;display:grid}[data-course] .ec-phone-keys>li{grid-template-columns:32px minmax(0,1fr);align-items:start;gap:12px;display:grid}[data-course] .ec-phone-keys b{color:#fff;display:block}[data-course] .ec-phone-n{width:32px;height:32px;color:var(--navy);background:#fff;border-radius:50%;place-items:center;font-size:1rem;font-weight:700;line-height:1;display:grid}@media (max-width:639px){[data-course] .ec-anatomy.ec-anatomy--phone{padding:16px 8px 20px}[data-course] .ec-phone-keys{padding:0 8px}}@media (min-width:900px){[data-course] .ec-anatomy.ec-anatomy--phone{grid-template-columns:minmax(0,398px) minmax(220px,320px);justify-content:center;align-items:center;gap:48px;padding:32px 24px}}