.dvt{--ink:#123f3b;--green:#166443;--line:#d6e4dc;--wash:#f3f8f5;--muted:#536760;margin:0;background:#fff;color:var(--ink);font:400 1rem/1.65 Arial,Helvetica,sans-serif}.dvt *{box-sizing:border-box}.dvt a{color:var(--green);text-underline-offset:.2em}.dvt a:hover{text-decoration:underline}.dvt a:focus-visible,.dvt input:focus-visible,.dvt video:focus-visible,.dvt audio:focus-visible{outline:3px solid #bd257e;outline-offset:4px}.dvt .skip{position:absolute;left:1rem;top:-8rem;padding:.6rem 1rem;background:#fff;z-index:5}.dvt .skip:focus{top:1rem}.dvt .bar{min-height:88px;padding:18px max(24px,calc((100% - 1170px)/2));display:flex;align-items:center;gap:24px;border-bottom:1px solid var(--line);background:#fff}.dvt .brand{font-size:1.75rem;font-weight:800;color:#ed8100;letter-spacing:-1.2px;text-decoration:none;white-space:nowrap}.dvt .brand span{color:#e8008b}.dvt .bar-title{font-size:.9rem;border-left:1px solid var(--line);padding-left:24px}.dvt .bar nav{margin-left:auto;display:flex;flex-wrap:wrap;gap:8px 24px;font-size:.9rem}.dvt .bar nav a{padding:8px 0}.dvt .shell{max-width:1218px;min-height:70vh;padding:40px 24px 64px;margin:auto}.dvt .heading{margin:0 0 32px}.dvt .eyebrow{margin:0 0 8px;font-size:.875rem;font-weight:700;color:var(--green);letter-spacing:.07em}.dvt h1{margin:0 0 12px;font-family:Georgia,'Times New Roman',serif;font-weight:400;font-size:clamp(2rem,4vw,2.8rem);line-height:1.2;overflow-wrap:anywhere}.dvt h2{font-size:1.35rem;line-height:1.4;margin:0 0 16px}.dvt h3{font-size:1.15rem;line-height:1.5}.dvt p{margin:0 0 18px}.dvt .heading>p:last-child{color:var(--muted)}.dvt .courses{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.dvt .course{min-width:0;display:flex;flex-direction:column;padding:26px;border:1px solid var(--line);border-top:4px solid var(--green);border-radius:0 0 12px 12px;color:var(--ink);text-decoration:none;transition:background .15s}.dvt .course:hover{background:var(--wash);text-decoration:none}.dvt .course h2{margin:8px 0 30px;overflow-wrap:anywhere;font-size:1.25rem}.dvt .course-action{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);color:var(--green);font-weight:700;font-size:.95rem;display:flex;justify-content:space-between}.dvt .back{display:inline-block;margin-bottom:28px;padding:4px 0;font-size:.95rem}.dvt .topics{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:40px;padding:14px;background:var(--wash);border:1px solid var(--line);border-radius:10px}.dvt .topics a{display:inline-block;padding:8px 16px;color:var(--ink);font-weight:700;font-size:.95rem}.dvt .topic{scroll-margin-top:24px;margin-bottom:36px;display:grid;grid-template-columns:240px minmax(0,1fr);gap:36px;border-bottom:1px solid var(--line);padding:0 0 36px}.dvt .topic>h2{padding-top:18px}.dvt .lessons{min-width:0}.dvt .lesson{display:grid;grid-template-columns:90px minmax(0,1fr) 20px;gap:18px;align-items:center;color:var(--ink);text-decoration:none;padding:20px 0;border-bottom:1px solid var(--line);min-height:84px}.dvt .lesson:last-child{border-bottom:0}.dvt .lesson strong{font-size:1rem;overflow-wrap:anywhere}.dvt .lesson:hover strong{text-decoration:underline}.dvt .kind{font-size:.875rem;color:var(--green);background:var(--wash);padding:5px 8px;border-radius:5px;text-align:center}.dvt small{display:block;font-size:.875rem;color:var(--muted);margin-top:4px}.dvt .empty{color:var(--muted);background:var(--wash);border:1px dashed var(--line);border-radius:8px;padding:20px}.dvt .reading{max-width:850px;margin:0 auto}.dvt .reading h1{margin-top:12px}.dvt .reading .meta{font-size:.9rem;color:var(--muted);padding-bottom:24px;border-bottom:1px solid var(--line);margin-bottom:32px}.dvt .article-body{font-size:1.0625rem;overflow-wrap:anywhere}.dvt .article-body h2{margin-top:32px}.dvt .article-body h3{margin-top:24px}.dvt .article-body ul,.dvt .article-body ol{padding-left:24px}.dvt .article-body li{margin-bottom:8px}.dvt .article-body table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:24px 0}.dvt .article-body th,.dvt .article-body td{padding:12px;text-align:left;border:1px solid var(--line)}.dvt video{display:block;width:100%;max-height:72vh;border-radius:10px;background:#101b18;margin:24px 0}.dvt audio{display:block;width:100%;margin:24px 0}.dvt .attachment{margin-top:28px;display:flex;align-items:center;gap:20px;justify-content:space-between;background:var(--wash);border:1px solid var(--line);padding:24px;border-radius:10px;overflow-wrap:anywhere}.dvt .attachment>span{min-width:0}.dvt .file-actions{display:flex;gap:10px;flex-shrink:0;flex-wrap:wrap}.dvt .button,.dvt input[type=submit]{font:700 .95rem/1.4 Arial,Helvetica,sans-serif;display:inline-block;color:#fff;background:var(--green);border:1px solid var(--green);padding:12px 20px;border-radius:7px;text-decoration:none;cursor:pointer;min-height:46px}.dvt .button:hover,.dvt input[type=submit]:hover{background:#0e4d32}.dvt .button.secondary{background:#fff;color:var(--green)}.dvt .draft{display:inline-block;padding:6px 12px;background:#fff4d3;color:#725012;border-radius:6px;font-size:.875rem;margin-bottom:18px}.dvt .login{max-width:480px;margin:20px auto;background:var(--wash);border:1px solid var(--line);border-radius:12px;padding:32px}.dvt .login h1{font-size:2.1rem}.dvt .login label{display:block;font-weight:700;margin-bottom:6px}.dvt .login input[type=text],.dvt .login input[type=password]{font-size:1rem;width:100%;background:#fff;border:1px solid #9eb3a7;border-radius:6px;padding:12px}.dvt .login input[type=submit]{width:100%}.dvt .foot{padding:24px;text-align:center;border-top:1px solid var(--line);color:var(--muted);font-size:.875rem}.dvt blockquote{margin:24px 0;border-left:3px solid var(--green);padding:12px 20px;background:var(--wash)}
@media(max-width:960px){.dvt .bar-title{display:none}.dvt .courses{grid-template-columns:repeat(2,minmax(0,1fr))}.dvt .topic{grid-template-columns:180px minmax(0,1fr);gap:24px}.dvt .attachment{align-items:flex-start;flex-direction:column}}
@media(max-width:600px){.dvt .bar{padding:16px;gap:8px;flex-wrap:wrap}.dvt .bar nav{gap:18px;font-size:.875rem}.dvt .brand{font-size:1.45rem}.dvt .shell{padding:28px 16px 40px}.dvt .courses{grid-template-columns:1fr;gap:16px}.dvt .course{padding:22px}.dvt .topic{display:block;padding-bottom:24px;margin-bottom:24px}.dvt .topic>h2{padding-top:0}.dvt .topics{padding:8px;gap:4px;margin-bottom:30px}.dvt .topics a{padding:10px;font-size:.875rem}.dvt .lesson{grid-template-columns:76px minmax(0,1fr) 12px;gap:12px}.dvt .login{margin:0 auto;padding:24px}.dvt .login h1{font-size:1.85rem}.dvt .attachment{padding:18px}.dvt .file-actions{width:100%}.dvt .file-actions .button{flex:1;text-align:center}.dvt .reading .meta{margin-bottom:24px}}
@media(prefers-reduced-motion:reduce){.dvt *{transition:none!important}}