.wt{--wt-gap:20px}.wt .wt-intro{max-width:760px;padding:40px 0 8px}.wt .wt-intro h1{letter-spacing:-.04em;margin:0 0 14px;font-size:clamp(2.2rem,5vw,3.4rem);line-height:1.05}.wt .wt-lead{max-width:680px;color:var(--muted-foreground);margin:0 0 18px;font-size:18px;line-height:1.55}.wt .wt-actions{flex-wrap:wrap;align-items:center;gap:12px 20px;display:flex}.wt .wt-print{gap:8px}.wt .wt-toc{flex-wrap:wrap;gap:8px 18px;display:flex}.wt .wt-toc a{color:var(--primary);font-weight:800}.wt .wt-section{padding:36px 0 8px;scroll-margin-top:16px}.wt .wt-section>h2{margin:0 0 10px;font-size:clamp(1.6rem,3.4vw,2.2rem)}.wt .wt-ui{white-space:nowrap;font-weight:800}.wt p,.wt li,.wt dd{line-height:1.55}.wt .wt-steps{counter-reset:wt-step;gap:12px;margin:0;padding:0;list-style:none;display:grid}.wt .wt-steps li{border:1px solid var(--border);background:var(--card);counter-increment:wt-step;border-radius:20px;padding:18px 20px 18px 76px;position:relative}.wt .wt-steps li:before{content:counter(wt-step);background:var(--primary);width:40px;height:40px;color:var(--primary-foreground);border-radius:13px;justify-content:center;align-items:center;font-size:20px;font-weight:900;display:flex;position:absolute;top:18px;left:20px;transform:rotate(-4deg)}.wt .wt-steps h3,.wt .wt-try h3{margin:0 0 4px;font-size:1.1rem}.wt .wt-steps p,.wt .wt-try p{margin:0}.wt .wt-try{border:2px dashed var(--border-strong);border-radius:20px;margin-top:12px;padding:18px 20px}.wt .wt-points{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:12px 28px;margin:0;padding:0 0 0 20px;display:grid}.wt .wt-topic{gap:var(--wt-gap);border-top:1px solid var(--border);grid-template-columns:minmax(0,1fr) minmax(0,340px);align-items:start;padding:20px 0;display:grid}.wt .wt-topic.wt-wide{grid-template-columns:minmax(0,1fr)}.wt .wt-topic:not(:has(.wt-shot)){grid-template-columns:minmax(0,1fr)}.wt .wt-topic>div{max-width:760px}.wt .wt-topic h3{margin:0 0 6px;font-size:1.2rem}.wt .wt-topic p,.wt .wt-shot{margin:0}.wt .wt-shot img{border:1px solid var(--border);max-width:100%;height:auto;box-shadow:var(--paper-lift);border-radius:14px;display:block}.wt .wt-shot figcaption{color:var(--muted-foreground);margin-top:6px;font-size:14px}.wt .wt-contests{grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:16px;display:grid}.wt .wt-contest{border:1px solid var(--border);border-top:6px solid var(--c);background:var(--card);border-radius:18px;padding:18px 20px}.wt .wt-contest h3{flex-wrap:wrap;align-items:baseline;gap:4px 10px;margin:0 0 10px;font-size:1.15rem;display:flex}.wt .wt-contest h3 a{color:inherit}.wt .wt-grades{color:var(--muted-foreground);font-size:13px;font-weight:700}.wt .wt-contest dl{grid-template-columns:max-content minmax(0,1fr);gap:6px 12px;margin:0;font-size:15px;display:grid}.wt .wt-contest dt{font-weight:800}.wt .wt-contest dd{margin:0}.wt .wt-tip{margin:10px 0 0;font-size:15px}.wt .wt-uil{color:var(--muted-foreground);margin:10px 0 0;font-size:14px}.wt .wt-uil a{color:var(--primary);font-weight:800}.wt .wt-contest.is-coming-soon{opacity:.7}.wt .wt-soon{color:var(--muted-foreground);margin:0;font-weight:800}@media (max-width:560px){.wt .wt-steps li{padding:16px 16px 16px 64px}.wt .wt-steps li:before{width:36px;height:36px;left:14px}.wt .wt-contest dl{grid-template-columns:minmax(0,1fr);gap:2px}.wt .wt-contest dd{margin-bottom:6px}.wt .wt-ui{white-space:normal}}@media (max-width:760px){.wt .wt-topic{grid-template-columns:minmax(0,1fr)}}@page walkthrough{size:letter;margin:.5in}@media print{body:has(.wt){background:#fff}.wt{page:walkthrough;color:#000;max-width:none;margin:0;padding:0;font-size:10pt}.wt>.topbar,.wt .wt-actions,.wt .feedback-note,.wt>footer{display:none}.wt .wt-intro{padding:0 0 6pt}.wt .wt-intro h1{margin-bottom:4pt;font-size:22pt}.wt .wt-lead{color:#333;margin-bottom:6pt;font-size:10.5pt}.wt .wt-section{padding:10pt 0 0}.wt .wt-section>h2{margin-bottom:4pt;font-size:16pt}.wt #quick-start{break-after:page;padding-top:0}.wt .wt-steps{gap:5pt}.wt p,.wt li,.wt dd{line-height:1.4}.wt .wt-steps li,.wt .wt-try{break-inside:avoid;background:#fff;border-radius:8pt;padding:6pt 10pt 6pt 40pt}.wt .wt-try{margin-top:6pt;padding-left:10pt}.wt .wt-steps li:before{-webkit-print-color-adjust:exact;print-color-adjust:exact;border-radius:6pt;width:22pt;height:22pt;font-size:12pt;top:6pt;left:10pt;transform:none}.wt .wt-topic{break-inside:avoid;padding:8pt 0}.wt .wt-shot{break-inside:avoid}.wt .wt-shot img{box-shadow:none;width:auto;max-height:3.4in}.wt .wt-contests{display:block}.wt .wt-contest{break-inside:avoid;-webkit-print-color-adjust:exact;print-color-adjust:exact;background:#fff;margin-bottom:8pt;padding:8pt 10pt}.wt a{color:inherit}.wt .wt-uil a:after{content:" (" attr(href) ")";word-break:break-all;font-weight:400}}