:root{--ink:#11151d;--paper:#f3f1eb;--lime:#ff8736;--cyan:#82b9ff;--line:#d8dce3;--muted:#526079;--white:#ffffff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif}a{color:inherit;text-underline-offset:4px}button,input,textarea{font:inherit}button,a,input,textarea,summary{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #12827c;outline-offset:4px}button:disabled{opacity:.6;cursor:default}.skip{position:absolute;left:-9999px;z-index:8}.skip:focus{left:10px;top:10px;background:var(--lime);padding:12px}.top{height:92px;display:flex;align-items:center;justify-content:space-between;padding:18px 4vw;background:var(--paper);border-bottom:1px solid 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p{font-size:16px}.chapters{grid-template-columns:1fr}.example{padding:23px}.worksheet{padding:19px}.calc-result{grid-template-columns:1fr}.calc-result div{display:flex;align-items:center;justify-content:space-between}.footer{font-size:8px}.caption-live{bottom:48px}.rubric th,.rubric td{padding:10px}.rubric{font-size:13px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}@media print{.top,.sidebar,.footer,.jump,.video-shell,.video-tools,.chapters,.primary,.download-row,.question button,.finish{display:none}.layout{display:block}main{padding:0}body{font-size:11pt;background:white}.section{break-before:page}.example{background:#eee;color:black}.example p{color:black}}

.top{background:#10151f;color:#fff;border-bottom:3px solid #ff8736}.course-logo{width:64px;height:64px;object-fit:contain}.brand{font-size:11px}.toplink{font-size:12px}.hero{background:#10151f;position:relative;isolation:isolate;overflow:hidden;min-height:510px}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,14,25,.98) 8%,rgba(8,14,25,.73) 60%,rgba(8,14,25,.1)),url('media/examples/crew-1280.webp') 70% center/cover;z-index:-1}.hero h1{font-size:clamp(62px,7vw,96px);max-width:660px}.hero h1 em{color:#ff8736}.hero .number{position:static;display:block;text-align:left;margin:8px 0 16px;color:#93c7ff}.hero p{max-width:570px}.orientation{border-left-color:#ff8736}.host-intro{display:grid;grid-template-columns:150px 1fr;gap:25px;align-items:center;margin:32px 0;background:white;border:1px solid var(--line);padding:22px}.host-intro img{width:150px;height:165px;object-fit:cover;object-position:50% 16%}.host-intro p{font-size:15px;margin:7px 0}.host-intro h2{font-size:25px;margin:0}.registration-callout{padding:24px;border-left:5px solid #ff8736;background:#e9eef8;margin:25px 0}.registration-callout h2{font-size:25px}.registration-callout p{font-size:15px}.social-invite{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.social-invite a{border:1px solid #9daeca;padding:9px 15px;text-decoration:none;font-weight:700;font-size:14px}.form-stage{padding:24px;background:#fff;border:1px solid var(--line)}.form-stage p{max-width:740px}.form-stage iframe{width:100%;height:1150px;border:0}.subtle{font-size:13px;color:var(--muted)}.preview-note{background:#fff0dd;border:1px solid #ffc987;padding:14px 18px;font-size:14px}.video-shell{border-radius:0;box-shadow:8px 8px 0 #dce5f4;margin-right:8px}.example{border-top:4px solid #ff8736}.brand-strip{display:flex;align-items:center;gap:18px;padding:20px 0}.brand-strip img{width:88px}.quick-choice{padding:20px;background:#fff;border:1px solid #b9c7db;margin-top:16px}.quick-choice h3{font-size:21px}.quick-choice button{background:#e9eef8;border:1px solid #b9c7db;padding:10px 14px;margin:4px 6px 4px 0;font-size:14px}.quick-choice .choice-feedback{font-size:14px;color:#22538d;min-height:24px}.completion-survey{border:2px solid #ff8736;background:#fff5e9;padding:26px;margin:35px 0}.completion-survey h2{font-size:27px}.completion-survey p{font-size:15px}.primary{background:#ff8736;color:#11151d}.primary.dark{background:#174887;color:white}.side-note{line-height:1.8}.side-note a{display:inline-block}.resources a{color:#20589a}.home-map .n{color:#2862b8}.read-image{margin:25px 0}.read-image img{width:100%;display:block}.read-image figcaption{font-size:11px;color:var(--muted);margin-top:6px}.nav-survey{font-weight:700}.home-map a:hover{background:#e9eef8}.video-tools label{display:inline-flex;gap:8px;align-items:center}.video-tools select{font:inherit;padding:5px}.footer{background:#11151d;color:#fff}.footer span{color:#9cc4ff}@media(max-width:700px){.course-logo{width:49px;height:49px}.host-intro{grid-template-columns:90px 1fr;padding:15px;gap:15px}.host-intro img{width:90px;height:123px}.host-intro h2{font-size:20px}.hero{min-height:490px}.toplink{font-size:10px}.hero h1{font-size:62px}.form-stage{padding:15px}.sidebar .side-note{display:block;margin-top:12px}.sidebar .side-note a{margin-right:12px}.video-tools{line-height:1.8}}

.course-welcome{margin:38px 0;padding:24px;background:white;border:1px solid var(--line)}.course-welcome h2{margin:6px 0 20px}.course-welcome video{width:100%;display:block;background:#10151f}.course-welcome details{margin-top:12px}.course-welcome .subtle{margin-top:12px}@media(max-width:700px){.course-welcome{padding:15px}}
/* Learner accounts and a working notebook. */
.account-link{color:#ffb47e;font-size:13px;font-weight:750;white-space:nowrap}.account-form,.profile-form,.mailing-card{background:white;border:1px solid #d3dce8;border-radius:18px;padding:32px;margin:28px 0;box-shadow:6px 7px 0 #e2e9f3}.account-form{max-width:650px}.account-form h2{font-size:27px}.account-form label,.profile-field>label{display:block;font-weight:700;margin:20px 0 7px}.account-form input,.profile-form input:not([type=radio]):not([type=checkbox]),.profile-form select{display:block;width:100%;border:1px solid #93a4ba;border-radius:8px;padding:12px;background:#fcfcfd;color:#15263d}.account-buttons,.account-actions{display:flex;flex-wrap:wrap;gap:12px;margin:25px 0}.account-buttons button,.account-form>button,#sign-out,.sync-choice button,.legacy-import button,.mailing-card button{border:1px solid #a4b3c8;border-radius:7px;padding:12px 18px;font-weight:700;background:#eef3fa;color:#183254}.account-buttons .primary,.mailing-card .primary{background:#183254;color:#fff}.account-form [role=status]{font-weight:600;color:#274f7d;min-height:28px}.account-email{font-weight:700;color:#36587f;overflow-wrap:anywhere}.save-banner{border:1px solid #9db7dc;background:#edf4ff;padding:17px 22px;border-radius:10px;margin:22px 0;font-size:15px}.save-banner p{margin:5px 0}.account-progress{display:flex;align-items:center;gap:30px;border-top:3px solid #ff8736;border-bottom:1px solid #ccd7e5;padding:28px 0}.account-progress>strong{font-size:83px;color:#183254;line-height:1}.account-progress small{font-size:16px;display:block;margin-top:14px;white-space:nowrap}.account-progress h2{font-size:28px;margin:0}.account-actions a{padding:13px 17px;background:white;border:1px solid #b9c8dc;border-radius:8px;font-size:15px}.sync-choice{background:#fff0da;border:2px solid #ce8c4e;padding:22px;border-radius:12px}.sync-choice h2{font-size:25px}.sync-choice button{margin:6px}.profile-field{padding:22px 0;border-bottom:1px solid #e1e6ed}.profile-field legend{font-weight:700;font-size:17px}.profile-field fieldset{border:0;padding:0;margin:0}.profile-field textarea{width:100%;min-height:140px;padding:15px;border:1px solid #a5b4c6;border-radius:8px}.profile-field .field-help{font-size:13px;color:#52647b;margin:7px 0 15px}.profile-field .option{border:none;padding:8px 0;background:none;display:flex;align-items:flex-start;gap:12px;font-weight:400}.profile-field .option input{margin-top:6px;flex:0 0 auto;accent-color:#234b80}.required-mark{color:#94521d}.optional-mark{color:#637083;font-size:12px;font-weight:400}.profile-section{font-size:24px;border-top:3px solid #ff8736;padding-top:23px;margin-top:30px}.scale-options{display:flex;gap:30px;flex-wrap:wrap}.course-name{font-weight:700;color:#183254}.course-conclusion{border-top:3px solid #ff8736;padding:30px;margin:40px 0;background:white;border-radius:0 0 12px 12px}.course-conclusion video{display:block;width:100%;margin:22px 0}.worksheet{border:1px solid #a2b6cf;border-radius:15px;background-color:#fffdf5;background-image:radial-gradient(#bfd0e333 .8px,transparent .8px);background-size:15px 15px;box-shadow:7px 8px 0 #dbe4f0;position:relative}.worksheet:before{content:'MAKE IT YOURS ↘';display:block;color:#285888;font-size:12px;font-weight:800;letter-spacing:1px;transform:rotate(-2deg);margin-bottom:20px}.worksheet textarea{background:#fffefb;border-radius:6px;border-color:#b8c6d8}.worksheet label{color:#183254}.legacy-import{padding:18px;background:white;border:1px dashed #a5b3c8;border-radius:8px}.legacy-import summary{font-weight:650}.mailing-card{border-top:5px solid #ff8736}.mailing-card h2{font-size:28px}
@media(max-width:850px){.edition{display:none}.account-link{font-size:11px}.account-form,.profile-form,.mailing-card{padding:21px}.account-progress{align-items:flex-start;gap:18px}.account-progress>strong{font-size:62px}.account-progress h2{font-size:24px}.scale-options{gap:18px}.course-conclusion{padding:20px}.toplink{display:none}.progress small{display:block}.account-actions{display:grid;grid-template-columns:1fr}.profile-field .option{font-size:15px}.account-buttons button{width:100%}}

.account-stat{padding:24px;display:flex;flex-direction:column;background:#fff;border:1px solid #bbc5d1;border-radius:12px}.account-stat strong{font-size:44px;color:#183254}.account-stat span{font-size:15px}

@media(max-width:700px){.hero:before{background-image:linear-gradient(90deg,rgba(8,14,25,.98) 8%,rgba(8,14,25,.73) 60%,rgba(8,14,25,.1)),url("media/examples/crew-640.webp")}}