/* Teaching page v4 (2026): clean layout. Built on the shared header, hero, marquee and footer in teaching-redesign.css */
body.tv4 { background: #fff !important; color: var(--ink, #222); font-family: 'Roboto', Arial, sans-serif; }
body.tv4 .visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
body.tv4 main { max-width: none !important; margin: 0 !important; padding: 0 !important; }
.v4w { width: 100%; max-width: 1240px; margin: 0 auto; padding-inline: max(16px, env(safe-area-inset-left, 0px)); box-sizing: border-box; }
.v4s { padding-block: clamp(56px, 8vw, 110px); }
.v4-tint { background: #f6f3ee; }
.v4-kick { margin: 0 0 10px; font: 700 .85rem 'Roboto', Arial, sans-serif; letter-spacing: .18em; text-transform: uppercase; color: var(--carnelian, #b31b1b); }
.v4-lede { max-width: 62ch; margin: 14px 0 0; font-size: clamp(1.05rem, 1.4vw, 1.2rem); line-height: 1.6; color: #444; }
body.tv4 .v4s h2 { margin: 0; }
.v4-btn { display: inline-flex; align-items: center; padding: 14px 24px; background: var(--carnelian, #b31b1b); color: #fff !important; border-radius: 14px; font: 800 .95rem 'Open Sans', Arial, sans-serif; letter-spacing: .06em; text-transform: uppercase; text-decoration: none !important; border: 0; cursor: pointer; transition: background .25s, transform .3s cubic-bezier(.2, .7, .2, 1); }
.v4-btn:hover { background: #222; transform: translateY(-3px); }

/* scroll reveal (only when JS is on) */
html.js-tv3 .rv { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
html.js-tv3 .rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html.js-tv3 .rv { opacity: 1; transform: none; transition: none; } }

/* At a glance */
.v4-glance { border-bottom: 1.5px solid var(--line, #e3e0da); }
.v4-glance ul { list-style: none; margin: 0 auto; padding-block: clamp(28px, 4vw, 44px); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.v4-glance li { display: flex; flex-direction: column; gap: 6px; padding-left: 18px; border-left: 4px solid var(--carnelian, #b31b1b); }
.v4-glance b { font: 800 clamp(2.2rem, 4.4vw, 3.4rem)/1 'Open Sans', Arial, sans-serif; color: #222; }
.v4-glance span { font-size: 1rem; line-height: 1.4; color: #444; max-width: 24ch; }

/* Philosophy */
.v4-phil { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.v4-sticky { position: sticky; top: 110px; }
.v4-pull { margin: 26px 0 28px; padding-left: 20px; border-left: 6px solid var(--carnelian, #b31b1b); font: 800 clamp(1.5rem, 2.6vw, 2.15rem)/1.2 'Open Sans', Arial, sans-serif; color: #222; text-wrap: balance; }
.v4-prose p { margin: 0 0 1.25em; font-size: clamp(1.05rem, 1.35vw, 1.18rem); line-height: 1.78; color: #2c2a28; }
.v4-prose strong { color: var(--carnelian, #b31b1b); font-weight: 700; }
.v4-trio { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: clamp(28px, 4vw, 48px); }
.v4-trio figure { margin: 0; overflow: hidden; border-radius: 18px; border: 1.5px solid var(--line, #e3e0da); background: #fff; }
.v4-trio img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.v4-trio figcaption { padding: 12px 16px 14px; font-size: .98rem; line-height: 1.4; color: #333; }

/* Courses: one row per course */
.v4-courses { margin-top: clamp(28px, 4vw, 48px); border-top: 4px solid var(--carnelian, #b31b1b); }
.v4-course { display: grid; grid-template-columns: 150px minmax(0, 1fr) 270px; gap: clamp(20px, 3vw, 44px); padding-block: clamp(28px, 4vw, 44px); border-bottom: 1.5px solid #d9d4cb; align-items: start; }
.v4-term span { display: block; font: 800 1.35rem/1.15 'Open Sans', Arial, sans-serif; color: var(--carnelian, #b31b1b); text-transform: uppercase; letter-spacing: .02em; }
.v4-term em { display: inline-block; margin-top: 10px; padding: 3px 12px; border: 1.5px solid var(--carnelian, #b31b1b); border-radius: 999px; font: 700 .78rem 'Roboto', Arial, sans-serif; font-style: normal; letter-spacing: .1em; text-transform: uppercase; color: var(--carnelian, #b31b1b); }
.v4-cbody h3 { margin: 0 0 10px; font: 800 clamp(1.3rem, 2.2vw, 1.8rem)/1.15 'Open Sans', Arial, sans-serif; text-transform: uppercase; color: #222; text-wrap: balance; }
.v4-meta { margin: 0 0 14px; font-size: 1.02rem; line-height: 1.5; font-weight: 500; color: #555; }
.v4-meta b { color: var(--carnelian, #b31b1b); margin-inline: 2px; }
.v4-desc { margin: 0 0 16px; font-size: clamp(1.02rem, 1.25vw, 1.12rem); line-height: 1.7; color: #2c2a28; max-width: 68ch; }
.v4-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 8px; }
.v4-chip { display: inline-block; padding: 8px 16px; border: 1.5px solid #222; border-radius: 12px; color: #222 !important; font: 700 .95rem 'Roboto', Arial, sans-serif; text-decoration: none !important; transition: background .2s, color .2s, border-color .2s; }
.v4-chip:hover { background: var(--carnelian, #b31b1b); border-color: var(--carnelian, #b31b1b); color: #fff !important; }
.v4-det { margin-top: 14px; border-top: 1px solid #d9d4cb; padding-top: 12px; }
.v4-det summary { cursor: pointer; font: 700 .95rem 'Roboto', Arial, sans-serif; letter-spacing: .06em; text-transform: uppercase; color: var(--carnelian, #b31b1b); list-style: none; }
.v4-det summary::-webkit-details-marker { display: none; }
.v4-det summary::after { content: " +"; }
.v4-det[open] summary::after { content: " –"; }
.v4-det > div { padding-top: 12px; font-size: 1rem; line-height: 1.65; color: #333; }
.v4-det b { display: block; margin: 14px 0 6px; color: #222; }
.v4-det ul { margin: 0; padding-left: 1.2em; }
.v4-det li { margin-bottom: 4px; }
.v4-det a { color: var(--carnelian, #b31b1b); }
.v4-art { margin: 0; }
.v4-art img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 16px; }

/* Photo grid heading spacing (grid itself is styled in teaching-redesign.css) */
#teaching-in-practice .tv3-grid { margin-top: 32px; }

/* Shelf + quote carousels */
.v4-head2 { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; flex-wrap: wrap; margin-bottom: 28px; }
.v4-arrows { display: flex; gap: 10px; }
.v4-arrows button { width: 52px; height: 52px; border: 1.5px solid #222; border-radius: 14px; background: #fff; font-size: 1.3rem; cursor: pointer; color: #222; transition: background .2s, color .2s, border-color .2s; }
.v4-arrows button:hover { background: var(--carnelian, #b31b1b); border-color: var(--carnelian, #b31b1b); color: #fff; }
.v4-shelf, .v4-quotes { display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: 0; padding-bottom: 14px; scrollbar-width: thin; scrollbar-color: var(--carnelian, #b31b1b) transparent; -webkit-overflow-scrolling: touch; }
.v4-shelf:focus-visible, .v4-quotes:focus-visible { outline: 3px solid rgba(179, 27, 27, .4); outline-offset: 4px; }
.v4-book { flex: 0 0 clamp(210px, 22vw, 260px); margin: 0; scroll-snap-align: start; display: flex; flex-direction: column; background: #fff; border: 1.5px solid #e3e0da; border-radius: 18px; overflow: hidden; }
.v4-book img { display: block; width: 100%; aspect-ratio: 2 / 3; object-fit: cover; background: #eee; }
.v4-book figcaption { padding: 16px 18px 20px; }
.v4-book strong { display: block; margin-bottom: 6px; font: 800 1.05rem/1.25 'Open Sans', Arial, sans-serif; color: #222; }
.v4-book p { margin: 0; font-size: .95rem; line-height: 1.55; color: #444; display: -webkit-box; -webkit-line-clamp: 6; -webkit-box-orient: vertical; overflow: hidden; }
.v4-book:hover p, .v4-book:focus-within p { -webkit-line-clamp: unset; }
.v4-q { flex: 0 0 clamp(290px, 34vw, 420px); margin: 0; scroll-snap-align: start; padding: 56px 28px 28px; position: relative; background: #fff; border: 1.5px solid #e3e0da; border-top: 5px solid var(--carnelian, #b31b1b); border-radius: 18px; font-size: 1.12rem; line-height: 1.65; color: #222; }
.v4-q::before { content: "“"; position: absolute; top: 4px; left: 22px; font: 800 4.5rem/1 'Open Sans', Arial, sans-serif; color: var(--carnelian, #b31b1b); }

/* Certificates */
.v4-certs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 32px; }
.v4-cert { display: flex; flex-direction: column; padding: 0; text-align: left; background: #fff; border: 1.5px solid #e3e0da; border-radius: 18px; overflow: hidden; cursor: zoom-in; font: inherit; color: #222; transition: border-color .25s, transform .3s cubic-bezier(.2, .7, .2, 1); }
.v4-cert:hover, .v4-cert:focus-visible { border-color: var(--carnelian, #b31b1b); transform: translateY(-5px); outline: none; }
.v4-cert img { display: block; width: 100%; aspect-ratio: 3 / 2; object-fit: contain; background: #fff; border-bottom: 1.5px solid #e3e0da; }
.v4-cert span { padding: 14px 18px 18px; font-size: .98rem; line-height: 1.4; color: #555; }
.v4-cert strong { display: block; margin-bottom: 3px; font: 800 1.05rem 'Open Sans', Arial, sans-serif; color: #222; }
.v4-more { margin: 22px 0 0; font-weight: 700; }
.v4-more a { color: var(--carnelian, #b31b1b); }
#v4-lightbox { max-width: min(92vw, 1000px); width: 100%; padding: 22px; border: 0; border-radius: 18px; text-align: center; }
#v4-lightbox::backdrop { background: rgba(20, 14, 14, .78); }
#v4-lightbox img { max-width: 100%; max-height: 72vh; border-radius: 10px; }
#v4-lightbox p { margin: 12px 0 14px; font-size: 1rem; color: #333; }
.v4-x { position: absolute; top: 12px; right: 12px; width: 42px; height: 42px; border: 1.5px solid #222; border-radius: 12px; background: #fff; font-size: 1.1rem; cursor: pointer; }

/* Map section (legacy markup, new frame) */
.v4-mapwrap { padding-block: clamp(56px, 8vw, 110px); }
.v4-mapwrap .teachmap-card { background: #fff; border: 1.5px solid #222; border-radius: 18px; padding: clamp(18px, 3vw, 32px); box-shadow: none; overflow: hidden; }
.v4-mapwrap .tm-title { margin: 0 0 18px; }
.v4-mapwrap #teach-map { min-height: 460px; border-radius: 14px; overflow: hidden; margin-top: 16px; border: 1.5px solid #e3e0da; }
.v4-mapwrap .tm-controls { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 14px; }
.v4-mapwrap .tm-btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; background: #fff; color: #222; border: 1.5px solid #222; border-radius: 12px; font: 700 .95rem 'Roboto', Arial, sans-serif; cursor: pointer; }
.v4-mapwrap .tm-btn[aria-pressed="true"] { background: #222; color: #fff; }
.v4-mapwrap .tm-filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: center; }
.v4-mapwrap .tm-filters input, .v4-mapwrap .tm-filters select { padding: 11px 14px; border: 1.5px solid #222; border-radius: 12px; font: 500 1rem 'Roboto', Arial, sans-serif; background: #fff; }
.v4-mapwrap .tm-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.v4-mapwrap .tm-btn-secondary { padding: 10px 14px; background: #fff; color: #222; border: 1.5px solid #bdb8ae; border-radius: 12px; font: 600 .92rem 'Roboto', Arial, sans-serif; cursor: pointer; }
.v4-mapwrap .tm-btn-secondary:hover { border-color: var(--carnelian, #b31b1b); color: var(--carnelian, #b31b1b); }
.v4-mapwrap .tm-list { margin-top: 16px; border: 1.5px solid #e3e0da; border-radius: 14px; padding: 12px 18px; }
.v4-mapwrap .tm-list summary { cursor: pointer; font-weight: 700; }

@media (max-width: 980px) {
  .v4-glance ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .v4-phil { grid-template-columns: minmax(0, 1fr); }
  .v4-sticky { position: static; }
  .v4-course { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .v4-art { order: -1; max-width: 420px; }
  .v4-term { display: flex; align-items: center; gap: 14px; }
  .v4-term em { margin-top: 0; }
  .v4-certs { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .v4-trio { grid-template-columns: minmax(0, 1fr); }
  .v4-arrows button { width: 46px; height: 46px; }
}

/* fixes */
body.tv4 { margin: 0 !important; }
.v4-courses, .v4-course, .v4-glance li, .v4-pull, .v4-term, .v4-term span, .v4-cbody, .v4-desc { border-radius: 0 !important; }
.v4-q { overflow: hidden; border-top: 1.5px solid #e3e0da !important; }
.v4-q::after { content: ""; position: absolute; inset: 0 0 auto 0; height: 5px; background: var(--carnelian, #b31b1b); }
body.tv4 .v4-mapwrap .tm-btn { background: #fff !important; color: #222 !important; border: 1.5px solid #222 !important; box-shadow: none !important; }
body.tv4 .v4-mapwrap .tm-btn[aria-pressed="true"] { background: #222 !important; color: #fff !important; }
body.tv4 .v4-mapwrap .tm-btn-secondary { background: #fff !important; color: #222 !important; border: 1.5px solid #bdb8ae !important; box-shadow: none !important; }
body.tv4 .v4-mapwrap .tm-btn-secondary:hover { border-color: #b31b1b !important; color: #b31b1b !important; }
body.tv4 .v4-mapwrap .tm-filters input, body.tv4 .v4-mapwrap .tm-filters select { border: 1.5px solid #222 !important; background: #fff !important; min-width: 220px; }
.v4-mapwrap .marker-cluster-small, .v4-mapwrap .marker-cluster-medium, .v4-mapwrap .marker-cluster-large { background: rgba(179, 27, 27, .22) !important; }
.v4-mapwrap .marker-cluster-small div, .v4-mapwrap .marker-cluster-medium div, .v4-mapwrap .marker-cluster-large div { background: #b31b1b !important; color: #fff !important; font-weight: 700; }
body.tv4 main > section, body.tv4 main > section *:is(ul, li, div, header):not(.v4-q):not(.v4-book):not(.v4-cert):not(.v4-trio figure) { border-radius: 0 !important; }
body.tv4.teach-v3 main :is(section, .v4-pull, .v4-glance li, .v4-courses, .v4-course, .v4-mapwrap, header.v4-sticky):not(#x) { border-radius: 0 !important; }