:root{--teal: #1a9e8f;--teal-deep: #157d71;--navy: #1b2a4a;--navy-card: #1e3050;--navy-deep: #162340;--offwhite: #f5f7fa;--white: #ffffff;--ink: #2d2d2d;--ink-soft: #444852;--muted: #6b7280;--teal-tint: #e8f7f5;--gold: #f5c842;--rule: #e2e6ec;--font-sans: "DM Sans", "Google Sans", system-ui, -apple-system, Arial, sans-serif;--shadow-sm: 0 1px 2px rgba(27, 42, 74, .06), 0 2px 8px rgba(27, 42, 74, .06);--shadow-md: 0 4px 16px rgba(27, 42, 74, .1);--radius: 12px;--radius-sm: 8px;--maxw: 1180px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:88px}body{background:var(--offwhite);color:var(--ink);font-family:var(--font-sans);font-weight:400;line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased;min-height:100vh}a{color:var(--teal-deep);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;display:block}h1,h2,h3,h4{color:var(--navy);line-height:1.15;font-weight:700}h1{font-size:clamp(34px,5vw,52px);letter-spacing:-.02em}h2{font-size:clamp(26px,3.4vw,34px);letter-spacing:-.01em;margin-bottom:14px}h3{font-size:21px;margin:28px 0 10px}h4{font-size:14px;text-transform:uppercase;letter-spacing:.06em;color:var(--teal-deep);margin:22px 0 8px}p{margin-bottom:14px;color:var(--ink)}strong{color:var(--navy)}.eyebrow{font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--teal-deep);font-style:italic}.title-rule{width:64px;height:3px;background:var(--teal);border:0;margin:14px 0 24px;border-radius:2px}.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}.masthead{position:sticky;top:0;z-index:100;background:var(--navy);color:var(--white);border-bottom:3px solid var(--teal)}.masthead-inner{max-width:var(--maxw);margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;color:var(--white);font-weight:700;font-size:19px;letter-spacing:-.01em}.brand:hover{text-decoration:none}.brand-mark{width:11px;height:11px;border-radius:50%;background:var(--teal);display:inline-block}.masthead-nav{display:flex;gap:22px;font-size:14px;font-weight:500}.masthead-nav a{color:#cdd6e6}.masthead-nav a:hover{color:var(--white);text-decoration:none}.hero{background:var(--navy);color:var(--white)}.hero-inner{max-width:var(--maxw);margin:0 auto;padding:72px 24px 80px}.hero h1{color:var(--white);max-width:18ch}.hero .eyebrow{color:var(--teal)}.hero-sub{color:#c7d0e0;font-size:20px;max-width:60ch;margin-top:20px;line-height:1.55}.hero-meta{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px 28px;font-size:13px;color:#aab6cc;text-transform:uppercase;letter-spacing:.08em}.card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow-sm);border-top:4px solid var(--teal);padding:24px}.card h3{margin-top:0}.course-section{padding:56px 0;border-bottom:1px solid var(--rule)}.course-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}.course-num{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--teal-deep)}.btn{display:inline-flex;align-items:center;gap:8px;background:var(--teal);color:var(--white);font-weight:600;font-size:15px;padding:11px 20px;border-radius:999px;border:2px solid var(--teal);transition:background .15s,border-color .15s}.btn:hover{background:var(--teal-deep);border-color:var(--teal-deep);text-decoration:none}.btn-ghost{background:transparent;color:var(--teal-deep)}.btn-ghost:hover{background:var(--teal-tint);color:var(--teal-deep)}.btn-navy{background:var(--navy);border-color:var(--navy)}.btn-navy:hover{background:var(--navy-deep);border-color:var(--navy-deep)}.video-embed{position:relative;width:100%;aspect-ratio:16 / 9;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);background:var(--navy-card)}.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.slide-tile{display:block;border:2px solid var(--teal);border-radius:var(--radius);padding:20px 22px;background:var(--teal-tint);color:var(--navy)}.slide-tile:hover{text-decoration:none;box-shadow:var(--shadow-sm)}.slide-tile.pending{border-style:dashed;border-color:var(--muted);background:var(--white);color:var(--muted)}.slide-tile .tile-label{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--teal-deep)}.slide-tile.pending .tile-label{color:var(--muted)}.slide-tile .tile-title{font-size:18px;font-weight:700;margin-top:4px}.callout{background:var(--teal-tint);border-left:4px solid var(--teal);border-radius:var(--radius-sm);padding:16px 20px;margin:20px 0}.callout.warn{background:#fdf6dd;border-left-color:var(--gold)}.callout.navy{background:var(--navy-deep);border-left-color:var(--teal);color:#dfe6f2}.callout.navy strong{color:var(--white)}.callout-label{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--teal-deep);margin-bottom:4px}.callout.navy .callout-label{color:var(--teal)}.objectives{counter-reset:obj;list-style:none;background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:8px 8px 8px 0;margin:20px 0}.objectives li{counter-increment:obj;position:relative;padding:12px 20px 12px 60px;border-bottom:1px solid var(--rule);color:var(--ink)}.objectives li:last-child{border-bottom:0}.objectives li:before{content:counter(obj,decimal-leading-zero);position:absolute;left:18px;top:12px;width:28px;height:28px;border-radius:50%;background:var(--teal);color:var(--white);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}.steplist{counter-reset:step;list-style:none;margin:20px 0}.steplist li{counter-increment:step;position:relative;padding:4px 0 18px 52px}.steplist li:before{content:counter(step);position:absolute;left:0;top:0;width:34px;height:34px;border-radius:50%;background:var(--navy);color:var(--white);font-weight:700;display:flex;align-items:center;justify-content:center}.overview-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:var(--radius);overflow:hidden;margin:20px 0}.overview-cell{background:var(--white);padding:18px 20px}.overview-cell .label{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}.overview-cell .value{font-size:17px;color:var(--navy);font-weight:600;margin-top:4px}.overview-cell.span-2{grid-column:span 2}.chapter{display:grid;grid-template-columns:220px 1fr;gap:48px;max-width:var(--maxw);margin:0 auto;padding:40px 24px 96px}@media(min-width:861px){.chapter-hero .hero-inner{padding-left:292px}}.toc{position:sticky;top:104px;align-self:start;max-height:calc(100vh - 120px);overflow-y:auto}.toc-label{font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);padding-bottom:10px;border-bottom:1px solid var(--rule);margin-bottom:10px}.toc ul{list-style:none}.toc li{padding:5px 0}.toc a{color:var(--ink);font-size:14px}.toc a:hover{color:var(--teal-deep);text-decoration:none}.chapter-body{min-width:0}.chapter-body section{margin-bottom:48px;scroll-margin-top:100px}.chapter-body ul,.chapter-body ol{margin:0 0 14px 22px}.chapter-body li{margin-bottom:6px}.chapter-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;background:var(--white);border-radius:var(--radius-sm);overflow:hidden;box-shadow:var(--shadow-sm)}.chapter-body thead th{background:var(--navy);color:var(--white);text-align:left;padding:10px 14px;font-size:13px;letter-spacing:.02em}.chapter-body tbody td{padding:10px 14px;border-top:1px solid var(--rule);vertical-align:top}.chapter-body tbody tr:nth-child(2n) td{background:var(--offwhite)}.chapter-body blockquote{margin:22px 0;padding:16px 22px;background:var(--teal-tint);border-left:4px solid var(--teal);border-radius:var(--radius-sm);color:var(--navy);font-style:italic}.chapter-body blockquote p:last-child{margin-bottom:0}.chapter-body hr{border:0;border-top:1px solid var(--rule);margin:32px 0}.chapter-body code{background:#eef1f6;border-radius:4px;padding:1px 6px;font-size:.9em;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace}.chapter-body pre{background:var(--navy-deep);color:#e6ecf6;padding:16px 18px;border-radius:var(--radius-sm);overflow-x:auto;margin:20px 0}.chapter-body pre code{background:transparent;padding:0;color:inherit}.chapter-body details{border:1px solid var(--rule);border-radius:var(--radius-sm);padding:12px 16px;margin:12px 0;background:var(--white)}.chapter-body summary{font-weight:600;color:var(--navy);cursor:pointer}.chapter-body details.faq{border:1px solid var(--rule);border-radius:var(--radius-sm);margin:10px 0;padding:0;background:var(--white);overflow:hidden}.chapter-body details.faq[open]{box-shadow:var(--shadow-sm)}.chapter-body details.faq>summary{list-style:none;padding:14px 48px 14px 18px;position:relative;color:var(--navy)}.chapter-body details.faq>summary::-webkit-details-marker{display:none}.chapter-body details.faq>summary:after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);color:var(--teal-deep);font-size:22px;font-weight:400;line-height:1}.chapter-body details.faq[open]>summary{border-bottom:1px solid var(--rule)}.chapter-body details.faq[open]>summary:after{content:"–"}.chapter-body details.faq>p{margin:14px 18px;color:var(--ink)}.chapter-body dl.glossary{margin:22px 0;border-top:2px solid var(--teal)}.chapter-body dl.glossary dt{font-weight:700;color:var(--navy);padding:16px 0 4px;font-size:17px}.chapter-body dl.glossary dd{margin:0;padding:0 0 16px;border-bottom:1px solid var(--rule);color:var(--ink)}.chapter-body ul.checklist{list-style:none;margin-left:0}.chapter-body ul.checklist>li{position:relative;padding:4px 0 4px 32px;margin-bottom:4px;cursor:pointer;user-select:none;transition:color .15s}.chapter-body ul.checklist>li:before{content:"";position:absolute;left:0;top:6px;width:18px;height:18px;border:2px solid var(--teal);border-radius:5px;background:var(--white);transition:background .15s}.chapter-body ul.checklist>li:hover:before{background:var(--teal-tint)}.chapter-body ul.checklist>li.checked{color:var(--muted);text-decoration:line-through}.chapter-body ul.checklist>li.checked:before{background:var(--teal);border-color:var(--teal)}.chapter-body ul.checklist>li.checked:after{content:"✓";position:absolute;left:3px;top:3px;font-size:13px;font-weight:700;color:var(--white);line-height:1}.course-nav{display:flex;justify-content:space-between;gap:16px;margin-top:48px;padding-top:24px;border-top:2px solid var(--teal)}.course-nav a{display:flex;flex-direction:column;gap:2px;max-width:48%}.course-nav a:hover{text-decoration:none}.course-nav .nav-dir{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.course-nav .nav-title{color:var(--navy);font-weight:700}.course-nav .next{text-align:right;margin-left:auto;align-items:flex-end}.site-footer{background:var(--navy);color:#aab6cc;margin-top:64px}.site-footer-inner{max-width:var(--maxw);margin:0 auto;padding:40px 24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;font-size:14px}.site-footer a{color:#cdd6e6}.slides-actions{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0;align-items:center}.slides-deck{display:flex;flex-direction:column;gap:16px;max-width:1000px}.slide-page{width:100%;height:auto;border-radius:var(--radius-sm);border:1px solid var(--rule);box-shadow:var(--shadow-sm);background:var(--white)}@media(max-width:860px){.course-grid{grid-template-columns:1fr;gap:24px}.chapter{grid-template-columns:1fr}.toc,.masthead-nav{display:none}.overview-grid{grid-template-columns:1fr}}