/* Teaching & Media — cinematic video rail, scoped to this page only.
   Future-ready: add another .vgrid-card and the existing horizontal rail + arrows work. */
.teaching-media-site .vgrid {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 3.4vw, 48px) 0 clamp(34px, 3.8vw, 54px);
  background:
    radial-gradient(circle at 78% 18%, rgba(127, 29, 68, .32), transparent 31%),
    radial-gradient(circle at 18% 82%, rgba(201, 232, 74, .08), transparent 26%),
    linear-gradient(118deg, #0f1210 0%, #171310 42%, #2a0e1c 100%);
  color: #f7f2ed;
  isolation: isolate;
}
.teaching-media-site .vgrid::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px);
  background-size: 86px 86px;
  mask-image: linear-gradient(to right, rgba(0,0,0,.55), transparent 78%);
}

.teaching-media-site .vgrid .qual-shell {
  width: min(1450px, calc(100% - clamp(36px, 5vw, 78px)));
  max-width: none;
}

.teaching-media-site .vgrid-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: clamp(18px, 2vw, 26px);
}
.teaching-media-site .vgrid-head-copy {
  max-width: 760px;
}
.teaching-media-site .vgrid-head p {
  margin: 0 0 8px;
  color: #c9e84a;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .22em;
}
.teaching-media-site .vgrid-head h2 {
  max-width: 720px;
  margin: 0 0 8px;
  color: #f7f2ed;
  font-size: clamp(30px, 3vw, 46px);
  line-height: 1.02;
  letter-spacing: -.02em;
}
.teaching-media-site .vgrid-head-copy > span {
  max-width: 650px;
  color: rgba(247, 242, 237, .64);
  font-size: 13.5px;
  line-height: 1.5;
}

/* Keep the controls visible even with one video so the section already reads
   as a growing video library. The existing script automatically enables the
   arrows once more cards create horizontal overflow. */
.teaching-media-site .vgrid-nav {
  display: flex !important;
  align-items: center;
  gap: 8px;
  padding-bottom: 2px;
}
.teaching-media-site .vgrid-nav::before {
  content: "VIDEO LIBRARY";
  margin-right: 7px;
  color: rgba(247, 242, 237, .44);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .17em;
}
.teaching-media-site .vgrid-btn {
  width: 42px;
  height: 42px;
  border-color: rgba(247, 242, 237, .24);
  background: rgba(255,255,255,.07);
  color: #f7f2ed;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.teaching-media-site .vgrid-btn:hover:not([disabled]) {
  background: #c9e84a;
  border-color: #c9e84a;
  color: #121713;
  transform: translateY(-1px);
}
.teaching-media-site .vgrid-btn[disabled] {
  opacity: .36;
  cursor: default;
  background: rgba(255,255,255,.045);
  color: rgba(247, 242, 237, .75);
}
.teaching-media-site .vgrid-btn[disabled]:hover {
  background: rgba(255,255,255,.045);
  color: rgba(247, 242, 237, .75);
}

/* Netflix / Disney-style horizontal cinematic rail. One card deliberately
   leaves breathing room on the right; future cards slide into that space. */
.teaching-media-site .vgrid-list {
  position: relative;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: clamp(610px, 57vw, 820px);
  gap: clamp(18px, 2vw, 28px);
  align-items: stretch;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: 2px;
  scroll-behavior: smooth;
  scrollbar-width: none;
  overscroll-behavior-inline: contain;
  padding: 2px clamp(120px, 18vw, 270px) 8px 2px;
  -webkit-overflow-scrolling: touch;
}
.teaching-media-site .vgrid-list::-webkit-scrollbar { display: none; }
.teaching-media-site .vgrid-list:focus-visible {
  outline: 2px solid #c9e84a;
  outline-offset: 6px;
  border-radius: 20px;
}

.teaching-media-site .vgrid-card {
  position: relative;
  min-height: clamp(285px, 25vw, 350px);
  display: block;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 22px;
  overflow: hidden;
  background: #101410;
  box-shadow: 0 22px 54px rgba(0,0,0,.3);
  scroll-snap-align: start;
  transform: none;
  transition: transform .32s cubic-bezier(.2,.7,.2,1), border-color .3s ease, box-shadow .3s ease;
}
.teaching-media-site .vgrid-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(9,12,10,.88) 0%, rgba(9,12,10,.62) 34%, rgba(9,12,10,.16) 66%, rgba(9,12,10,.08) 100%),
    linear-gradient(0deg, rgba(8,10,9,.8) 0%, transparent 45%);
}
.teaching-media-site .vgrid-card:hover {
  transform: translateY(-4px) scale(1.004);
  border-color: rgba(201,232,74,.42);
  box-shadow: 0 28px 68px rgba(0,0,0,.42);
}

.teaching-media-site .vgrid-thumb {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #111;
  z-index: 0;
}
.teaching-media-site .vgrid-thumb img {
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  object-fit: cover;
  object-position: center;
  filter: saturate(.92) contrast(1.04) brightness(.9);
  transition: transform .7s cubic-bezier(.2,.7,.2,1), filter .35s ease;
}
.teaching-media-site .vgrid-card:hover .vgrid-thumb img {
  transform: scale(1.035);
  filter: saturate(1) contrast(1.04) brightness(.95);
}

.teaching-media-site .vgrid-play {
  left: auto;
  right: clamp(24px, 4vw, 54px);
  top: 50%;
  translate: 0 -50%;
  z-index: 3;
  width: clamp(54px, 4.8vw, 68px);
  height: clamp(54px, 4.8vw, 68px);
  background: rgba(201, 232, 74, .96);
  color: #14231c;
  box-shadow: 0 12px 32px rgba(0,0,0,.36), 0 0 0 8px rgba(201,232,74,.1);
}
.teaching-media-site .vgrid-play svg {
  width: 22px;
  height: 22px;
}
.teaching-media-site .vgrid-card:hover .vgrid-play {
  transform: scale(1.08);
  background: #d8f26a;
}

.teaching-media-site .vgrid-body {
  position: relative;
  z-index: 2;
  width: min(56%, 440px);
  min-height: clamp(285px, 25vw, 350px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-start;
  padding: clamp(24px, 3.2vw, 42px);
  background: transparent;
}
.teaching-media-site .vgrid-chip {
  margin: 0 0 10px;
  padding: 5px 10px;
  border: 1px solid rgba(201,232,74,.32);
  background: rgba(10,14,11,.42);
  color: #c9e84a;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: .15em;
}
.teaching-media-site .vgrid-body h3 {
  margin: 0 0 8px;
  color: #fffaf5;
  font-size: clamp(20px, 2vw, 27px);
  font-weight: 500;
  line-height: 1.08;
  -webkit-line-clamp: 2;
}
.teaching-media-site .vgrid-body p {
  margin: 0 0 16px;
  color: rgba(247, 242, 237, .68);
  font-size: 12.5px;
  line-height: 1.48;
  -webkit-line-clamp: 2;
}
.teaching-media-site .vgrid-cta {
  min-height: 38px;
  padding: 8px 15px;
  border: 1px solid rgba(201,232,74,.22);
  background: #c9e84a;
  color: #111711;
  font-size: 12.5px;
  font-weight: 750;
  box-shadow: 0 8px 20px rgba(0,0,0,.22);
}
.teaching-media-site .vgrid-cta:hover {
  background: #d9f45b;
  transform: translateY(-1px);
}

@media (max-width: 980px) {
  .teaching-media-site .vgrid .qual-shell {
    width: min(100% - 34px, 920px);
  }
  .teaching-media-site .vgrid-list {
    grid-auto-columns: min(76vw, 700px);
    padding-right: 16vw;
  }
  .teaching-media-site .vgrid-card,
  .teaching-media-site .vgrid-body {
    min-height: 320px;
  }
  .teaching-media-site .vgrid-body {
    width: min(62%, 400px);
  }
}

@media (max-width: 760px) {
  .teaching-media-site .vgrid {
    padding: 30px 0 34px;
  }
  .teaching-media-site .vgrid .qual-shell {
    width: calc(100% - 28px);
  }
  .teaching-media-site .vgrid-head {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: end;
    gap: 12px 14px;
    margin-bottom: 16px;
  }
  .teaching-media-site .vgrid-head-copy {
    grid-column: 1 / -1;
  }
  .teaching-media-site .vgrid-head h2 {
    max-width: 12ch;
    font-size: clamp(28px, 8vw, 36px);
    line-height: 1.04;
  }
  .teaching-media-site .vgrid-head-copy > span {
    max-width: 34ch;
    font-size: 12.5px;
    line-height: 1.48;
  }
  .teaching-media-site .vgrid-nav {
    display: none !important;
  }
  .teaching-media-site .vgrid-list {
    grid-auto-columns: 88%;
    gap: 12px;
    padding: 2px 11% 5px 1px;
  }
  .teaching-media-site .vgrid-card {
    min-height: 312px;
    border-radius: 18px;
  }
  .teaching-media-site .vgrid-card::after {
    background:
      linear-gradient(0deg, rgba(8,10,9,.94) 0%, rgba(8,10,9,.68) 48%, rgba(8,10,9,.16) 76%),
      linear-gradient(90deg, rgba(9,12,10,.18), transparent 70%);
  }
  .teaching-media-site .vgrid-thumb img {
    object-position: 57% center;
  }
  .teaching-media-site .vgrid-body {
    width: 100%;
    min-height: 312px;
    justify-content: flex-end;
    padding: 20px 18px 18px;
  }
  .teaching-media-site .vgrid-body h3 {
    max-width: 90%;
    margin-bottom: 6px;
    font-size: 19px;
    line-height: 1.12;
  }
  .teaching-media-site .vgrid-body p {
    max-width: 94%;
    margin-bottom: 12px;
    font-size: 11.8px;
    -webkit-line-clamp: 2;
  }
  .teaching-media-site .vgrid-chip {
    margin-bottom: 8px;
    font-size: 8.5px;
  }
  .teaching-media-site .vgrid-play {
    top: 28%;
    right: 18px;
    width: 50px;
    height: 50px;
    box-shadow: 0 10px 26px rgba(0,0,0,.32), 0 0 0 6px rgba(201,232,74,.09);
  }
  .teaching-media-site .vgrid-cta {
    min-height: 36px;
    padding: 7px 14px;
  }
}

@media (max-width: 430px) {
  .teaching-media-site .vgrid-list { grid-auto-columns: 91%; padding-right: 9%; }
  .teaching-media-site .vgrid-card,
  .teaching-media-site .vgrid-body { min-height: 300px; }
  .teaching-media-site .vgrid-body { padding: 18px 16px 16px; }
  .teaching-media-site .vgrid-body p { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .teaching-media-site .vgrid-card,
  .teaching-media-site .vgrid-thumb img,
  .teaching-media-site .vgrid-play,
  .teaching-media-site .vgrid-cta {
    transition: none;
  }
}