/* One content axis for the header, ordinary sections and edge-to-edge carousels.
   Percentages use the layout viewport, so Windows scrollbars do not shift the axis. */
:root{--page-max:1760px;--page-gutter:clamp(24px,6vw,112px);--page-inset:max(var(--page-gutter),calc((100% - var(--page-max))/2 + var(--page-gutter)))}
.wrap{width:100%;max-width:var(--page-max);padding-inline:var(--page-gutter)}
@media(max-width:760px){:root{--page-gutter:24px}}
/* Shared site header and footer. Keep page content styles separate. */
header{
    position:sticky;top:0;z-index:50;
    background:rgba(255,255,255,.86);backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
header .nav{display:flex;align-items:center;justify-content:space-between;height:70px}
header .brand{font-family:"Sirry Header Serif",Georgia,serif;font-size:22px;font-weight:600;letter-spacing:0}
header .brand span{color:var(--wine)}
header .menu{display:flex;gap:clamp(18px,2vw,30px);align-items:center}
header .menu a{font-family:"Sirry Header Sans",Arial,sans-serif;font-size:15px;color:var(--muted);font-weight:500;transition:color .2s}
header .menu a:hover{color:var(--ink)}
[hidden]{display:none!important}
header .menu .btn,header .menu .btn:hover{color:#fff}
header .btn{
    display:inline-block;background:var(--wine);color:#fff;font-family:"Sirry Header Sans",Arial,sans-serif;
    padding:11px 20px;border-radius:999px;font-weight:600;font-size:15px;
    transition:background .2s,transform .2s;
  }
header .btn:hover{background:var(--wine-deep)}
header .btn.ghost{background:transparent;color:var(--wine);border:1.5px solid var(--wine)}
header .btn.ghost:hover{background:var(--wine);color:#fff}
header .navtoggle{display:none;background:none;border:0;font-size:26px;color:var(--ink);cursor:pointer}
header .nav-dropdown{position:relative}
header .nav-dropdown-trigger{display:inline-flex;align-items:center;gap:5px;background:none;border:0;padding:0;
    font-family:"Sirry Header Sans",Arial,sans-serif;font-size:15px;color:var(--muted);font-weight:500;
    cursor:pointer;transition:color .2s}
header .nav-dropdown-trigger:hover,header .nav-dropdown.open .nav-dropdown-trigger{color:var(--ink)}
header .nav-chevron{width:11px;height:11px;transition:transform .3s cubic-bezier(.22,1,.36,1)}
header .nav-dropdown.open .nav-chevron{transform:rotate(180deg)}
header .nav-dropdown-panel{position:absolute;top:calc(100% + 16px);left:50%;
    transform:translateX(-50%) translateY(-6px) scale(.97);
    width:min(720px,calc(100vw - 48px));min-width:0;display:grid;grid-template-columns:220px minmax(0,1fr);
    gap:8px;background:#fff;border:1px solid var(--line);border-radius:12px;
    box-shadow:0 24px 48px -20px rgba(0,0,0,.28);padding:8px;
    opacity:0;pointer-events:none;
    transition:opacity .28s cubic-bezier(.22,1,.36,1),transform .28s cubic-bezier(.22,1,.36,1);z-index:60}
header .nav-dropdown-panel::before{content:"";position:absolute;top:-6px;left:50%;
    transform:translateX(-50%) rotate(45deg);width:12px;height:12px;background:#fff;
    border-left:1px solid var(--line);border-top:1px solid var(--line);border-radius:2px}
header .nav-dropdown.open .nav-dropdown-panel{opacity:1;pointer-events:auto;
    transform:translateX(-50%) translateY(0) scale(1)}
header .nav-dropdown-content,header .nav-dropdown-content-inner{display:contents}
header .nav-dropdown-feature{display:flex;flex-direction:column;justify-content:center;min-height:0;padding:8px;
    background:var(--paper-2);border-radius:8px}
header .nav-dropdown-feature-image-wrap{width:100%;min-height:0;flex:1;overflow:hidden;border-radius:6px}
header .nav-dropdown-feature-image{width:100%;height:100%;object-fit:cover;object-position:25% 30%}
header .nav-dropdown-feature h3{font-size:21px;margin-bottom:10px}
header .nav-dropdown-feature p{font-family:"Sirry Header Sans",Arial,sans-serif;font-size:14px;line-height:1.55;color:var(--muted)}
header .nav-dropdown-feature a{display:inline-flex;align-items:center;gap:7px;width:max-content;margin:14px 12px 8px;padding:0;
    font-family:"Sirry Header Sans",Arial,sans-serif;font-size:14px;font-weight:600;color:var(--wine)}
header .nav-dropdown-feature a:hover{color:var(--wine-deep);background:transparent}
header .nav-dropdown-feature a span{font-size:17px;line-height:1;transition:transform .2s}
header .nav-dropdown-feature a:hover span{transform:translateX(3px)}
header .nav-dropdown-links{padding:8px}
header .nav-dropdown-option{display:block;padding:10px 12px;border-radius:8px;transition:background .15s,color .15s}
header .nav-dropdown-option:hover{background:var(--paper-2);color:var(--wine)}
header .nav-dropdown-option-title{display:block;font-family:"Sirry Header Sans",Arial,sans-serif;font-size:14px;color:var(--ink);font-weight:700}
header .nav-dropdown-option:hover .nav-dropdown-option-title{color:var(--wine)}
header .nav-dropdown-group{padding:10px 0}
header .nav-dropdown-group > .nav-dropdown-option-title{margin:0;padding:0 12px}
header .nav-dropdown-option-subtext{display:grid;gap:2px;margin:5px 0 0;padding:0;list-style:none}
header .nav-dropdown-option-subtext a{display:block;padding:6px 12px;border-radius:6px;
    font-family:"Sirry Header Sans",Arial,sans-serif;font-size:12.5px;line-height:1.4;color:var(--muted)}
header .nav-dropdown-option-subtext a:hover{background:var(--paper-2);color:var(--wine)}
header .nav-dropdown-links a:focus-visible{outline:2px solid var(--wine);outline-offset:2px}
header .nav-dropdown-panel{visibility:hidden}
header .nav-dropdown.open .nav-dropdown-panel{visibility:visible}



header{background:rgba(255,255,255,.96)}
header .wrap,footer .wrap{max-width:var(--page-max);margin-inline:auto;padding-inline:var(--page-gutter)}
header .brand{font-family:"Sirry Header Serif",Georgia,serif;line-height:1.65;letter-spacing:0}
header .menu > a,header .nav-dropdown-trigger{font-family:"Sirry Header Sans",Arial,sans-serif;font-weight:500}
header .nav-dropdown-trigger{line-height:1.3}
header .menu > .btn,header .menu > .btn:hover{color:#fff;background:var(--wine);border:1px solid var(--wine);line-height:1.65;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none;transform:none;transition:background .2s,color .2s}
header .menu > .btn::before{display:none}
header .menu > .btn:hover{background:var(--wine-deep)}
header .navtoggle{font:26px/1.65 "Merriweather",Georgia,serif;width:44px;height:44px;align-items:center;justify-content:center}
header .navtoggle-icon,header .navtoggle-icon::before,header .navtoggle-icon::after{display:block;width:21px;height:2px;background:currentColor;border-radius:1px}
header .navtoggle-icon{position:relative;transition:background .15s}
header .navtoggle-icon::before,header .navtoggle-icon::after{content:"";position:absolute;left:0;transition:transform .2s}
header .navtoggle-icon::before{transform:translateY(-6px)}
header .navtoggle-icon::after{transform:translateY(6px)}
header .navtoggle[aria-expanded="true"] .navtoggle-icon{background:transparent}
header .navtoggle[aria-expanded="true"] .navtoggle-icon::before{transform:rotate(45deg)}
header .navtoggle[aria-expanded="true"] .navtoggle-icon::after{transform:rotate(-45deg)}
header .nav-dropdown-option-subtext a{padding-block:9px}
header .nav-dropdown-panel{max-height:calc(100dvh - 110px);overflow-y:auto;overscroll-behavior:contain}
header a:focus-visible,header button:focus-visible{outline:2px solid var(--wine);outline-offset:5px}
footer{background:var(--ink);padding:44px 0;color:#dbe2eb;font:17px/1.65 "Merriweather",Georgia,serif}
footer .foot{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
footer .foot img{display:block;height:46px;width:auto;filter:brightness(0) invert(1);opacity:.85}
footer .footer-links{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
footer .foot a{color:#dbe2eb;text-decoration:none}
footer .foot a:hover{color:#fff}
footer .foot small{font-size:smaller;color:#b7c1ce}
footer a:focus-visible{outline:2px solid #fff;outline-offset:5px}
@media(max-width:1400px){
header .menu{display:none}
header .navtoggle{display:block}
header .menu.open{display:flex;position:absolute;top:70px;left:0;right:0;flex-direction:column;
      background:var(--paper);border-bottom:1px solid var(--line);padding:20px 24px;gap:18px}
header .nav-dropdown{width:100%}
header .nav-dropdown-trigger{width:100%;justify-content:space-between}
header .nav-dropdown-panel{position:static;transform:none;opacity:1;pointer-events:auto;
      width:100%;display:block;border:0;box-shadow:none;padding:0;margin-top:0}
header .nav-dropdown-panel::before{display:none}
header .nav-dropdown-content{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s cubic-bezier(.22,1,.36,1)}
header .nav-dropdown-content-inner{display:block;min-height:0;overflow:hidden}
header .nav-dropdown.open .nav-dropdown-content{grid-template-rows:1fr}
header .nav-dropdown.open .nav-dropdown-panel{padding:8px 0 0;margin-top:6px;transform:none}
header .nav-dropdown-feature{padding:8px;margin-bottom:8px}
header .nav-dropdown-feature-image-wrap{height:180px;flex:none}
header .nav-dropdown-feature h3{font-size:20px}
header .nav-dropdown-links{padding:6px 0 0}

  header .navtoggle{display:flex}
  header .menu.open{max-height:calc(100dvh - 70px);overflow-y:auto;overscroll-behavior:contain;align-items:stretch}
  header .nav-dropdown-panel{max-height:none;overflow:visible}
  header .nav-dropdown-option-subtext a{min-height:44px;display:flex;align-items:center}
}
@media(prefers-reduced-motion:reduce){header *,header *::before,header *::after{transition:none!important}}
@media(prefers-reduced-transparency:reduce){header{background:#fff;backdrop-filter:none}}
@media(max-width:600px){
  footer .foot{align-items:flex-start;gap:28px}
  footer .footer-links{flex-wrap:wrap;gap:16px!important}
  footer .foot small{width:100%}
}

/* Keep logo, menu labels and action on one shared vertical centre line. */
header .nav{gap:24px}
header .brand{flex:none;white-space:nowrap;line-height:1.3}
header .menu{flex:none}
header .menu > a,header .nav-dropdown-trigger{white-space:nowrap;line-height:1.4}
header .menu > .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px}
header .navtoggle{flex:none;width:44px;height:44px;align-items:center;justify-content:center}
@media(max-width:1400px){
  header .menu.open{padding-inline:var(--page-inset)}
  header .menu > a,header .nav-dropdown-trigger{white-space:normal}
  header .menu > a{min-height:44px;display:flex;align-items:center}
  header .menu > .btn{align-self:flex-start}
}

/* Embedded video sections retain their comfortable viewing width. */
.wrap.course-video-inner,.wrap.books-video-inner{max-width:1008px}