:root{--navy:#152e55;--navy2:#213d69;--ink:#162238;--muted:#667085;--blue:#2f64a1;--purple:#7656a5;--line:#dce3ec;--paper:#f4f7fb;--white:#fff;--green:#397b6a}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);font-size:16px}.topbar{height:74px;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 34px;position:sticky;top:0;z-index:20;box-shadow:0 2px 10px #0f234344}.brand{display:flex;align-items:center;gap:11px;font-size:15px;font-weight:800;line-height:.9;letter-spacing:.02em}.brand small{display:block;font-size:7px;letter-spacing:.09em;margin-top:5px}.mark{display:grid;place-items:center;width:35px;height:35px;border:2px solid #fff;border-radius:50%;font-family:Georgia,serif;font-size:22px}.guide-label{font-size:13px;letter-spacing:.13em}.guide-label b{color:#b6cdf1;margin-left:8px}.shell{display:grid;grid-template-columns:294px minmax(0,1fr);max-width:1500px;margin:auto}.sidebar{height:calc(100vh - 74px);position:sticky;top:74px;padding:25px 20px;background:#fff;border-right:1px solid var(--line);overflow:auto}.side-title{display:block;text-decoration:none;color:var(--ink);font-weight:760;font-size:20px;margin:0 4px 18px}.search{border:1px solid var(--line);border-radius:9px;padding:10px 12px;display:flex;gap:8px;align-items:center;background:#f9fbfd}.search input{border:0;outline:0;background:transparent;width:100%;font-size:14px}.role-switch{display:grid;grid-template-columns:repeat(3,1fr);background:#edf1f6;border-radius:9px;padding:3px;margin:12px 0 18px}.role-switch button{border:0;background:transparent;padding:8px 2px;border-radius:7px;color:#667085;cursor:pointer;font-weight:650}.role-switch button.active{background:#fff;color:var(--navy);box-shadow:0 1px 4px #1d315b22}nav a{display:flex;align-items:center;gap:9px;padding:9px 10px;margin:2px 0;border-radius:7px;color:#526071;text-decoration:none;font-size:14px}nav a:hover,nav a.active{background:#edf3fb;color:var(--navy);font-weight:650}nav a i{width:7px;height:7px;border-radius:50%;background:#b7c1ce;flex:0 0 auto}nav a[data-role=admin] i{background:var(--blue)}nav a[data-role=attendee] i{background:var(--purple)}.nav-group{font-size:11px;letter-spacing:.1em;color:#98a2b3;margin:18px 10px 7px;text-transform:uppercase}.progress-card{border-top:1px solid var(--line);margin-top:20px;padding:18px 6px}.progress-card>div:first-child{display:flex;justify-content:space-between;font-size:13px}.progress-track{height:6px;background:#e6ebf1;border-radius:9px;margin:10px 0}.progress-track i{display:block;height:100%;width:0;background:var(--green);border-radius:9px;transition:.3s}.progress-card button{border:0;background:transparent;color:#7a8698;padding:0;font-size:12px;cursor:pointer}main{min-width:0}.intro{min-height:440px;padding:66px clamp(30px,6vw,88px);background:linear-gradient(120deg,#fff 0 64%,#e8eef6 64%);display:grid;grid-template-columns:1.35fr .8fr;gap:70px;align-items:center;border-bottom:1px solid var(--line)}.eyebrow{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.15em}.intro h1{font-size:clamp(39px,4vw,62px);line-height:1.04;letter-spacing:-.045em;margin:12px 0 20px;color:var(--navy)}.intro h1 em{font-family:Georgia,serif;font-weight:400}.lede{color:#5e6c7f;line-height:1.7;max-width:660px;font-size:18px}.stats{display:flex;gap:27px;flex-wrap:wrap;margin-top:28px;color:#667085;font-size:13px}.stats b{display:block;color:var(--navy);font-size:20px}.start-card{background:var(--navy);color:#fff;border-radius:14px;padding:29px;box-shadow:0 22px 50px #17335e2d}.start-card>p{color:#a8c2e6;font-size:12px;text-transform:uppercase;letter-spacing:.12em;font-weight:750}.start-card h2{font-size:24px;margin:5px 0 20px}.start-card button{display:flex;justify-content:space-between;width:100%;padding:13px 14px;margin:9px 0;border:1px solid #54729b;border-radius:8px;color:#fff;background:#203d68;font-size:15px;cursor:pointer}.start-card button:hover{background:#2a4b7b}.start-card small{display:block;color:#b6c5d9;line-height:1.5;margin-top:15px}.legend{padding:16px clamp(30px,6vw,88px);border-bottom:1px solid var(--line);display:flex;gap:28px;background:#fff;color:#667085;font-size:13px;position:sticky;top:74px;z-index:10}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:7px}.dot.admin{background:var(--blue)}.dot.attendee{background:var(--purple)}#guide{padding:15px clamp(30px,6vw,88px) 80px}.chapter{margin-top:56px;scroll-margin-top:145px}.chapter-head{display:flex;justify-content:space-between;gap:20px;align-items:end;border-bottom:1px solid var(--line);padding-bottom:16px}.chapter-head .num{font-size:13px;color:var(--blue);font-weight:750;letter-spacing:.12em}.chapter h2{font-size:32px;letter-spacing:-.025em;margin:5px 0 0;color:var(--navy)}.badge{font-size:12px;font-weight:750;border-radius:99px;padding:7px 11px;background:#e9f0fa;color:var(--blue)}.chapter[data-role=attendee] .badge{background:#f0eaf8;color:var(--purple)}.chapter-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(270px,.8fr);gap:28px;margin-top:24px}.shot{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 6px 22px #20314b0d;cursor:zoom-in}.shot img{display:block;width:100%;aspect-ratio:1172/625;object-fit:cover}.shot figcaption{padding:10px 14px;color:#687588;font-size:12px;border-top:1px solid var(--line)}.content-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:23px}.content-card h3{font-size:18px;margin:0 0 10px;color:var(--navy)}.content-card>p{color:#5f6d7f;line-height:1.6;margin:0 0 15px}.steps{list-style:none;padding:0;margin:0}.steps li{display:grid;grid-template-columns:25px 1fr;gap:10px;padding:11px 0;border-top:1px solid #edf0f4;line-height:1.45;color:#3d4a5d}.steps input{appearance:none;width:20px;height:20px;border:1.5px solid #aeb9c7;border-radius:5px;margin:1px 0 0;cursor:pointer}.steps input:checked{background:var(--green);border-color:var(--green);box-shadow:inset 0 0 0 4px var(--green)}.steps input:checked:after{content:"✓";color:#fff;display:block;font-size:14px;text-align:center;line-height:17px}.tip{margin-top:16px;padding:12px 14px;border-left:3px solid #e0a83d;background:#fff9eb;color:#66552d;font-size:13px;line-height:1.5}.related{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}.related button{border:1px solid var(--line);background:#f8fafc;color:#4d5c70;border-radius:7px;padding:8px 10px;cursor:pointer}#empty{text-align:center;padding:100px 25px;color:#667085}footer{text-align:center;border-top:1px solid var(--line);padding:24px;color:#8a96a6;font-size:12px;background:#fff}dialog{width:min(1100px,94vw);border:0;border-radius:14px;padding:12px;box-shadow:0 25px 80px #0d1f3c88;background:#fff}dialog::backdrop{background:#0b1b32c7}dialog img{width:100%;display:block;border-radius:8px}dialog p{margin:11px 6px 3px;color:#516073}.close{position:absolute;right:20px;top:18px;width:38px;height:38px;border:0;border-radius:50%;background:#10294f;color:#fff;font-size:25px;cursor:pointer}@media(max-width:900px){.shell{display:block}.sidebar{height:auto;position:static;border:0;padding:16px}.side-title,.progress-card{display:none}nav{display:none}.topbar{height:62px;padding:0 17px}.guide-label{font-size:10px}.shell{grid-template-columns:1fr}.intro{grid-template-columns:1fr;gap:28px;padding:45px 25px;background:#fff}.legend{top:62px;overflow:auto;white-space:nowrap;padding:13px 22px}.chapter-grid{grid-template-columns:1fr}#guide{padding-left:22px;padding-right:22px}.chapter{scroll-margin-top:122px}.chapter-head{align-items:start}.chapter h2{font-size:27px}}@media(max-width:520px){.brand small{display:none}.guide-label b{display:none}.intro h1{font-size:39px}.stats{gap:18px}.legend span:last-child{display:none}}