:root{--navy:#04102d;--light-gray:#eaeef2;--white:#fff;--blue:#287be8;--magenta:#d1458b;--mint:#6ff2c1;--mint-dark:#1a9e74;--text-primary:#1a1f36;--text-secondary:#4a5068;--text-muted:#6b7194;--border:#d8dce8;--surface:#f4f6fa;--card-bg:#fff;--sidebar-bg:#f8f9fc;--sidebar-active:#eef1f8;--sidebar-hover:#f0f2f9}body{background:var(--white);color:var(--text-primary);-webkit-font-smoothing:antialiased;margin:0;font-family:DM Sans,sans-serif;line-height:1.7}.topbar{background:var(--navy);z-index:100;align-items:center;gap:16px;height:56px;padding:0 28px;display:flex;position:fixed;top:0;left:0;right:0}.topbar-brand{color:var(--white);letter-spacing:-.2px;font-size:15px;font-weight:700}.topbar-brand span{color:var(--blue)}.topbar-divider{background:#fff3;width:1px;height:20px}.topbar-course{color:#fff9;font-size:13px;font-weight:400}.layout{min-height:calc(100vh - 56px);margin-top:56px;display:flex}.sidebar{background:var(--sidebar-bg);border-right:1px solid var(--border);scrollbar-width:thin;width:272px;min-width:272px;padding:24px 0;position:fixed;top:56px;bottom:0;left:0;overflow-y:auto}.sidebar-section{margin-bottom:8px;padding:0 20px}.sidebar-label{letter-spacing:1.2px;text-transform:uppercase;color:var(--text-muted);padding:16px 0 8px;font-size:10px;font-weight:700}.sidebar-item{cursor:pointer;color:var(--text-secondary);border-radius:8px;align-items:flex-start;gap:12px;padding:10px 12px;font-size:14px;font-weight:400;line-height:1.4;text-decoration:none;transition:background .15s;display:flex}.sidebar-item:hover{background:var(--sidebar-hover)}.sidebar-item.active{background:var(--sidebar-active);color:var(--blue);font-weight:500}.sidebar-num{color:var(--text-muted);min-width:22px;padding-top:2px;font-family:JetBrains Mono,monospace;font-size:12px}.sidebar-item.active .sidebar-num{color:var(--blue)}.main{flex:1;max-width:860px;margin-left:272px;padding:48px 56px 120px}.section-label{letter-spacing:1.2px;text-transform:uppercase;color:var(--text-muted);margin-bottom:8px;font-size:11px;font-weight:700}h1{color:var(--text-primary);letter-spacing:-.5px;margin:0 0 12px;font-size:36px;font-weight:700;line-height:1.2}h2{color:var(--text-primary);letter-spacing:-.3px;margin:56px 0 16px;font-size:22px;font-weight:700;line-height:1.3}h3{color:var(--text-primary);margin:28px 0 10px;font-size:17px;font-weight:600}.main p{color:var(--text-secondary);margin:0 0 14px;font-size:15.5px}.main p strong{color:var(--text-primary);font-weight:600}.main ul,.main ol{color:var(--text-secondary);margin:8px 0 16px 24px;font-size:15.5px}.main li{margin-bottom:6px}.main li strong{color:var(--text-primary);font-weight:600}.main a{color:var(--blue);text-decoration:none}.main a:hover{text-decoration:underline}.subtitle{color:var(--text-muted);margin:-4px 0 24px;font-size:14px}.intro-box{border-left:3px solid var(--blue);background:#287be80a;border-radius:0 8px 8px 0;margin:24px 0 32px;padding:18px 22px}.intro-box p{margin-bottom:12px;font-size:14.5px}.intro-box p:last-child{margin-bottom:0}.how-list{counter-reset:how;margin:16px 0 0;padding:0;list-style:none}.how-list li{counter-increment:how;color:var(--text-secondary);border-bottom:1px solid #0000000d;margin:0;padding:14px 0 14px 44px;font-size:15px;line-height:1.6;position:relative}.how-list li:last-child{border-bottom:none}.how-list li:before{content:counter(how, decimal-leading-zero);color:var(--white);background:var(--navy);border-radius:6px;justify-content:center;align-items:center;width:30px;height:30px;font-family:JetBrains Mono,monospace;font-size:12px;font-weight:700;display:flex;position:absolute;top:16px;left:0}.how-list li strong{color:var(--text-primary);font-weight:600}.mission-list{flex-direction:column;gap:20px;margin-top:24px;display:flex}.mission-card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:24px 28px;transition:border-color .15s,box-shadow .15s}.mission-card:hover{border-color:#287be866;box-shadow:0 4px 18px #04102d0d}.mission-next{background:linear-gradient(180deg, #287be808, var(--white) 60%);border-color:#287be880;box-shadow:0 4px 22px #287be814}.mission-past{background:var(--surface)}.mission-card-head{justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;display:flex}.mission-tag{color:var(--blue);letter-spacing:.6px;text-transform:uppercase;font-family:JetBrains Mono,monospace;font-size:12px;font-weight:600}.status-badge{letter-spacing:1px;text-transform:uppercase;border-radius:999px;padding:4px 10px;font-size:10px;font-weight:700}.status-past{color:var(--text-muted);background:#4c4f5614}.status-next{color:var(--mint-dark);background:#1a9e741f}.status-upcoming{color:var(--magenta);background:#d1458b14}.mission-title{color:var(--text-primary);letter-spacing:-.2px;margin:0 0 10px;font-size:20px;font-weight:600}.mission-desc{color:var(--text-secondary);margin:0 0 16px;font-size:14.5px;line-height:1.6}.mission-meta{background:var(--surface);border:1px solid var(--border);border-radius:8px;flex-direction:column;gap:4px;margin-bottom:16px;padding:10px 14px;display:flex}.mission-meta-row{align-items:baseline;gap:10px;font-size:13px;display:flex}.mission-meta-label{letter-spacing:.8px;text-transform:uppercase;color:var(--text-muted);min-width:64px;font-family:JetBrains Mono,monospace;font-size:11px;font-weight:700}.mission-meta-value{color:var(--text-primary);font-weight:500}.mission-cta{margin-top:4px}.workbook-btn{background:var(--navy);color:var(--white);border-radius:8px;align-items:center;gap:8px;padding:10px 18px;font-size:14px;font-weight:600;text-decoration:none;transition:background .15s,transform .15s;display:inline-flex}.workbook-btn:hover{background:var(--blue);text-decoration:none}.workbook-btn-arrow{transition:transform .15s;display:inline-block}.workbook-btn:hover .workbook-btn-arrow{transform:translate(2px)}.workbook-btn-disabled{color:var(--text-muted);border:1px dashed var(--border);cursor:default;background:0 0}.workbook-btn-disabled:hover{color:var(--text-muted);background:0 0}.closing-section{margin-top:64px}.takeaway-list{counter-reset:takeaway;margin:20px 0;padding:0;list-style:none}.takeaway-list li{counter-increment:takeaway;color:var(--text-secondary);border-bottom:1px solid #0000000d;margin:0;padding:16px 0 16px 44px;font-size:14.5px;line-height:1.6;position:relative}.takeaway-list li:last-child{border-bottom:none}.takeaway-list li:before{content:counter(takeaway, decimal-leading-zero);color:var(--white);background:var(--navy);border-radius:6px;justify-content:center;align-items:center;width:30px;height:30px;font-family:JetBrains Mono,monospace;font-size:13px;font-weight:700;display:flex;position:absolute;top:18px;left:0}.takeaway-list li strong{color:var(--text-primary);font-weight:600}.footer{text-align:center;color:var(--text-muted);border-top:1px solid var(--border);margin-top:48px;padding-top:48px;font-size:12px}.meta-pills{flex-wrap:wrap;gap:8px;margin:18px 0 24px;display:flex}.meta-pill{background:var(--surface);border:1px solid var(--border);color:var(--text-secondary);border-radius:999px;padding:6px 14px;font-size:13px}.meta-pill strong{color:var(--blue);font-weight:700}.demo-callout{background:var(--navy);color:var(--white);border-radius:12px;margin:24px 0 8px;padding:24px 28px}.demo-callout .demo-badge{background:var(--mint);color:var(--navy);letter-spacing:1px;text-transform:uppercase;border-radius:4px;margin-bottom:12px;padding:4px 10px;font-size:10px;font-weight:700;display:inline-block}.demo-callout h3{color:var(--white);letter-spacing:-.2px;margin:0 0 8px;font-size:18px;font-weight:600}.main .demo-callout p{color:#ffffffb3;margin:0;font-size:14.5px;line-height:1.65}.five-d-grid{border-radius:10px;grid-template-columns:repeat(5,1fr);gap:1px;margin:20px 0 8px;display:grid;overflow:hidden}.five-d-step{text-align:center;background:var(--navy);color:var(--white);padding:18px 14px}.five-d-step:nth-child(2){background:#0d2052}.five-d-step:nth-child(3){background:#1a3070}.five-d-step:nth-child(4){background:#1e3d8a}.five-d-step:nth-child(5){background:var(--blue)}.five-d-letter{color:var(--mint);margin-bottom:4px;font-family:JetBrains Mono,monospace;font-size:26px;font-weight:700;line-height:1}.five-d-word{letter-spacing:1px;text-transform:uppercase;color:#ffffffeb;margin-bottom:6px;font-size:11px;font-weight:700}.five-d-desc{color:#fff9;font-size:11.5px;line-height:1.4}.mission-phase{color:var(--text-muted);text-transform:none;letter-spacing:.2px;margin-left:6px;font-weight:500}.mission-deliverables{flex-wrap:wrap;gap:6px;margin:0 0 16px;display:flex}.deliverable-tag{color:var(--blue);background:#287be814;border-radius:999px;padding:3px 10px;font-size:11.5px;font-weight:600}.mission-next .deliverable-tag{color:var(--mint-dark);background:#1a9e741f}.mission-past .deliverable-tag{color:var(--text-muted);background:#4c4f5614}.persona-grid{grid-template-columns:1fr 1fr;gap:14px;margin:20px 0 0;display:grid}.persona-card{background:var(--card-bg);border:1px solid var(--border);border-top:3px solid var(--blue);border-radius:10px;padding:18px 20px}.persona-role{color:var(--text-primary);margin-bottom:6px;font-size:13.5px;font-weight:700}.main .persona-desc{color:var(--text-secondary);margin:0;font-size:13.5px;line-height:1.6}.artifact-grid{grid-template-columns:1fr 1fr;gap:14px;margin:20px 0 0;display:grid}.artifact-card{background:var(--card-bg);border:1px solid var(--border);border-radius:10px;padding:18px 20px}.artifact-name{color:var(--navy);letter-spacing:-.1px;margin-bottom:6px;font-size:14px;font-weight:700}.main .artifact-desc{color:var(--text-secondary);margin:0;font-size:13.5px;line-height:1.6}.security-card{border-left:3px solid var(--magenta);background:#d1458b0a;border-radius:0 10px 10px 0;margin:20px 0 0;padding:18px 22px}.main .security-card p{color:var(--text-secondary);margin:0;font-size:14.5px;line-height:1.65}@media (max-width:900px){.sidebar{display:none}.main{margin-left:0;padding:32px 24px 80px}.topbar{gap:12px;padding:0 16px}.topbar-course{display:none}h1{font-size:28px}.mission-card{padding:20px}.five-d-grid{grid-template-columns:repeat(3,1fr)}.persona-grid,.artifact-grid{grid-template-columns:1fr}}.series-photo{border:1px solid var(--border);border-radius:14px;margin:28px 0 8px;overflow:hidden}.series-photo img{width:100%;height:auto;display:block}.series-photo-caption{color:var(--text-muted);margin-top:8px;font-size:13px}