:root{--ss-black:#0b0b0e;--ss-blue:#1f8cff;--ss-blue-dark:#075ea8;--ss-white:#fff;--ss-ink:#20242a;--ss-muted:#5a6b7f;--ss-line:#d7e0ea;--ss-soft:#f4f7fa;--ss-course-font:"Noto Sans",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ss-white);color:var(--ss-ink);font:16px/1.65 var(--ss-course-font);letter-spacing:0;text-rendering:optimizeLegibility}
a{color:var(--ss-blue-dark)}
img,video{max-width:100%;height:auto}
button,input,textarea,select,summary{font:inherit;letter-spacing:0}
.ss-skip-link{position:fixed;inset-block-start:8px;inset-inline-start:8px;z-index:1000;transform:translateY(-160%);padding:10px 14px;background:var(--ss-black);color:var(--ss-white);font-weight:800;text-decoration:none}
.ss-skip-link:focus{transform:translateY(0)}
.ss-site-header{position:sticky;inset-block-start:0;z-index:100;min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:11px 24px;border-block-end:1px solid rgba(11,11,14,.12);background:rgba(255,255,255,.97);backdrop-filter:blur(14px)}
.ss-brand{display:flex;align-items:baseline;gap:10px;color:var(--ss-black);text-decoration:none;font-weight:900;white-space:nowrap}
.ss-brand span:first-child{font-size:17px}
.ss-brand span:last-child{font-size:11px;color:var(--ss-blue-dark)}
.ss-header-tools{display:flex;align-items:center;justify-content:flex-end;gap:10px}
.ss-tool-link,.ss-course-action,.ss-step-nav a{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--ss-blue);border-radius:6px;padding:9px 14px;background:var(--ss-blue);color:var(--ss-white);font-weight:800;text-decoration:none;text-align:center;cursor:pointer}
.ss-tool-link.is-secondary,.ss-course-action.is-secondary{background:var(--ss-white);color:var(--ss-blue-dark);border-color:#b6d9ff}
.ss-tool-link:hover,.ss-course-action:hover,.ss-step-nav a:hover{background:var(--ss-black);border-color:var(--ss-black);color:var(--ss-white)}
.ss-course-action[data-copy-mission][data-copy-state="success"]{background:#0f7b4d;border-color:#0f7b4d;color:var(--ss-white)}
.ss-course-action[data-copy-mission][data-copy-state="error"]{background:#a82828;border-color:#a82828;color:var(--ss-white)}
.ss-language-menu{position:relative}
.ss-language-menu summary{min-height:44px;display:flex;align-items:center;gap:8px;cursor:pointer;list-style:none;border:1px solid #b6d9ff;border-radius:6px;padding:7px 12px;background:var(--ss-white);color:var(--ss-black)}
.ss-language-menu summary::-webkit-details-marker{display:none}
.ss-language-menu summary::after{content:"\25BE";color:var(--ss-blue-dark);font-size:12px}
.ss-language-menu[open] summary{border-color:var(--ss-blue);box-shadow:0 0 0 3px rgba(31,140,255,.15)}
.ss-language-label{font-size:12px;color:var(--ss-muted);font-weight:700}
.ss-language-menu summary strong{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}
.ss-language-panel{position:absolute;inset-block-start:calc(100% + 9px);inset-inline-end:0;z-index:110;width:min(380px,calc(100vw - 24px));max-height:min(72vh,570px);overflow:auto;border:1px solid rgba(11,11,14,.13);border-radius:8px;padding:10px;background:var(--ss-white);box-shadow:0 24px 70px rgba(11,11,14,.24)}
.ss-language-panel>label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.ss-language-panel>input{position:sticky;inset-block-start:0;z-index:2;width:100%;min-height:44px;margin-block-end:8px;border:1px solid #aacff7;border-radius:6px;padding:9px 12px;background:var(--ss-white);color:var(--ss-black)}
.ss-language-panel nav{display:grid;grid-template-columns:1fr 1fr;gap:4px}
.ss-language-option{min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:8px;border-radius:6px;padding:8px 10px;color:var(--ss-ink);font-weight:650;text-decoration:none}
.ss-language-option:hover,.ss-language-option:focus{background:#edf6ff;color:var(--ss-black)}
.ss-language-option[aria-current="page"]{background:var(--ss-blue);color:var(--ss-white)}
.ss-language-option small{font-size:10px;opacity:.72}
[hidden]{display:none!important}
.ss-course-shell{min-height:calc(100vh - 68px);display:grid;grid-template-columns:292px minmax(0,1fr)}
.ss-course-sidebar{position:sticky;inset-block-start:68px;align-self:start;height:calc(100vh - 68px);overflow:auto;padding:28px 20px 24px;background:var(--ss-black);color:var(--ss-white)}
.ss-course-rail-head{padding:0 8px 22px;border-block-end:1px solid rgba(255,255,255,.18)}
.ss-course-rail-head>span{display:block;margin-block-end:8px;color:#8cc7ff;font-size:11px;font-weight:900}
.ss-course-rail-head>a{display:block;color:var(--ss-white);font-size:18px;font-weight:850;line-height:1.35;text-decoration:none}
.ss-course-map summary{display:none}
.ss-step-count{direction:ltr;unicode-bidi:isolate}
.ss-course-map ol{display:grid;list-style:none;margin:18px 0 0;padding:0}
.ss-course-map li{border-block-end:1px solid rgba(255,255,255,.10)}
.ss-course-map li a{min-height:54px;display:grid;grid-template-columns:30px minmax(0,1fr);align-items:center;gap:8px;padding:9px 8px;color:#dce7f2;text-decoration:none}
.ss-course-map li a>span{font-size:11px;color:#8cc7ff;font-weight:900}
.ss-course-map li a>strong{font-size:13px;line-height:1.35;font-weight:650}
.ss-course-map li a:hover{background:rgba(255,255,255,.08);color:var(--ss-white)}
.ss-course-map li a[aria-current="step"]{background:var(--ss-blue);color:var(--ss-white)}
.ss-course-map li a[aria-current="step"]>span{color:var(--ss-white)}
.ss-course-main{min-width:0;width:100%;max-width:1240px;margin:0 auto;padding:42px clamp(28px,5vw,72px) 58px}
.ss-step-meta{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-block-end:12px;color:var(--ss-muted);font-size:12px;font-weight:850;text-transform:uppercase}
.ss-step-meta a{color:var(--ss-blue-dark);text-decoration:none}
.ss-course-main>h1{max-width:980px;margin:0 0 22px;color:var(--ss-black);font-size:38px;line-height:1.12;font-weight:900;letter-spacing:0}
.ss-course-actions{display:flex;flex-wrap:wrap;gap:10px;margin-block-end:30px}
.ss-course-body{min-width:0}
.ss-course-body>section,.ss-course-body>article{max-width:none!important}
.ss-course-body h2{font-size:38px!important;letter-spacing:0!important}
.ss-course-body h3{letter-spacing:0!important}
.ss-course-body textarea{max-width:100%}
.ss-course-body .seo-note{min-height:0;margin:0;padding:16px;border:1px solid #b6d9ff;background:#edf6ff;color:var(--ss-blue-dark)}
.ss-course-body .seo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.ss-course-body .seo-card{display:block;border:1px solid var(--ss-line);border-radius:6px;padding:16px;color:var(--ss-black);text-decoration:none}
.ss-course-body .seo-card:hover{border-color:var(--ss-blue);box-shadow:0 12px 30px rgba(31,140,255,.12)}
.ss-course-body .module{margin-block-start:26px;padding-block-start:24px;border-block-start:1px solid var(--ss-line)}
.ss-course-body video{display:block}
.ss-step-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-block-start:38px;padding-block-start:24px;border-block-start:1px solid var(--ss-line)}
.ss-step-nav a{min-width:0;display:flex;flex-direction:column;align-items:flex-start;background:var(--ss-white);border-color:var(--ss-line);color:var(--ss-black);text-align:start}
.ss-step-nav a.is-next{align-items:flex-end;text-align:end;grid-column:2}
.ss-step-nav a:hover{background:var(--ss-black);border-color:var(--ss-black);color:var(--ss-white)}
.ss-step-nav span{font-size:11px;color:var(--ss-blue-dark);text-transform:uppercase}
.ss-step-nav a:hover span{color:#8cc7ff}
.ss-step-nav strong{font-size:15px;line-height:1.4}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid rgba(31,140,255,.38);outline-offset:2px}
@media(max-width:900px){.ss-site-header{position:relative;padding:10px 16px}.ss-course-shell{display:block}.ss-course-sidebar{position:relative;inset-block-start:auto;height:auto;overflow:visible;padding:20px 16px}.ss-course-rail-head{padding:0 4px 15px}.ss-course-map{margin-block-start:12px}.ss-course-map summary{min-height:46px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;list-style:none;border:1px solid rgba(255,255,255,.25);border-radius:6px;padding:9px 12px;color:var(--ss-white)}.ss-course-map summary::-webkit-details-marker{display:none}.ss-course-map summary::after{content:"\25BE";margin-inline-start:8px;color:#8cc7ff}.ss-course-map summary strong{margin-inline-start:auto}.ss-course-map:not([open])>ol{display:none}.ss-course-map ol{margin-block-start:8px}.ss-course-main{padding:30px 20px 46px}}
@media(max-width:640px){.ss-site-header{align-items:flex-start;flex-wrap:wrap}.ss-brand{min-height:44px;align-items:center}.ss-brand span:last-child{display:none}.ss-header-tools{width:100%;display:grid;grid-template-columns:minmax(0,1fr) auto}.ss-tool-link{width:100%}.ss-language-label{display:none}.ss-language-menu summary strong{max-width:110px}.ss-language-panel{position:fixed;inset-block-start:74px;inset-inline:10px;width:auto;max-height:calc(100vh - 88px)}.ss-language-panel nav{grid-template-columns:1fr}.ss-course-main{padding-inline:14px}.ss-course-main>h1{font-size:30px}.ss-course-body h2{font-size:30px!important}.ss-course-actions{display:grid}.ss-course-action{width:100%}.ss-step-nav{grid-template-columns:1fr}.ss-step-nav a,.ss-step-nav a.is-next{grid-column:1;align-items:flex-start;text-align:start}.ss-course-body [style*="padding:clamp"]{padding:22px!important}.ss-course-body [style*="min-height:420px"]{min-height:0!important}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}