/* หมวดวิดีโอให้ความรู้ — ใช้ตัวแปรสีเดิมจาก marketplace.css/warm.css */

.vd-head { background: var(--sand); border-bottom: 1px solid var(--warm-line); padding: 46px 0 38px }
.vd-head h1 { font-size: clamp(28px, 5vw, 42px); line-height: 1.2; margin: 6px 0 10px; color: var(--navy) }
.vd-head p { color: var(--sub); max-width: 640px; line-height: 1.7 }

.vd-body { padding: 34px 0 56px }
.vd-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(268px, 1fr)); gap: 26px }

.vd-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: 18px;
  overflow: hidden; display: flex; flex-direction: column;
  box-shadow: 0 10px 30px rgba(8, 31, 61, .07);
}
.vd-card:target { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(18, 97, 168, .18) }

/* กรอบวิดีโอล็อกสัดส่วน 9:16 กันหน้าเด้งตอนโหลด */
.vd-media { position: relative; aspect-ratio: 9 / 16; background: var(--ink) }
.vd-media video { width: 100%; height: 100%; display: block; object-fit: cover }

.vd-info { padding: 15px 16px 17px; display: flex; flex-direction: column; gap: 9px; flex: 1 }
.vd-for { font-size: 12px; font-weight: 700; letter-spacing: .3px; color: var(--blue);
  background: #E7EEF5; align-self: flex-start; padding: 4px 10px; border-radius: 999px }
.vd-info h2 { font-size: 17px; line-height: 1.38; color: var(--navy); margin: 0 }
.vd-info p { font-size: 13.5px; line-height: 1.62; color: var(--sub); margin: 0; flex: 1 }

.vd-share { display: flex; gap: 7px; flex-wrap: wrap; padding-top: 4px }
.vd-share button, .vd-share a {
  font: inherit; font-size: 12.5px; font-weight: 600; cursor: pointer;
  border: 1px solid var(--line); background: var(--mist); color: var(--ink);
  padding: 7px 12px; border-radius: 9px; text-decoration: none; line-height: 1;
  display: inline-flex; align-items: center; gap: 5px;
}
.vd-share a.line { background: #06c755; border-color: #06c755; color: #fff }
.vd-share a.fb { background: #1877f2; border-color: #1877f2; color: #fff }
.vd-share button:hover, .vd-share a:hover { filter: brightness(.95) }
.vd-share .ok { background: var(--green); border-color: var(--green); color: #fff }

.vd-note { margin-top: 30px; font-size: 13px; color: var(--sub); line-height: 1.7;
  background: var(--mist); border: 1px solid var(--line); border-radius: 14px; padding: 15px 17px }

@media (max-width: 560px) {
  .vd-grid { grid-template-columns: 1fr; gap: 20px }
  .vd-media { aspect-ratio: 9 / 16; max-height: 74vh }
}

/* แถบวิดีโอในหน้าแรก (หมวดให้ความรู้) */
.vhome-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px }
.vhome { position: relative; display: block; border-radius: 14px; overflow: hidden;
  background: var(--ink); text-decoration: none; aspect-ratio: 9 / 16 }
.vhome img { width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .35s ease }
.vhome:hover img { transform: scale(1.05) }
.vhome b { position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 12px 12px;
  font-size: 13px; line-height: 1.4; color: #fff; font-weight: 600;
  background: linear-gradient(transparent, rgba(8, 20, 38, .88)) }
.vhome-play { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 46px; height: 46px; border-radius: 50%; background: rgba(255, 255, 255, .92);
  color: var(--navy); display: grid; place-items: center; font-size: 15px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .28) }
@media (max-width: 760px) { .vhome-row { grid-template-columns: repeat(2, 1fr) } }

/* หัวข้อแบ่งหมวดในหน้าวิดีโอ */
.vd-sec { font-size: 21px; color: var(--navy); margin: 40px 0 4px; padding-bottom: 10px;
  border-bottom: 2px solid var(--line) }
.vd-sec:first-of-type { margin-top: 0 }
.vd-secsub { color: var(--sub); font-size: 13.5px; margin: 0 0 18px }
.vd-grid + .vd-sec { margin-top: 46px }

/* ---- การ์ดคลิปจาก YouTube ---- */
/* โชว์รูปปกก่อน กดแล้วค่อยยัด iframe ทับ — ไม่กดก็ไม่มีคุกกี้ YouTube และหน้าโหลดเบา */
.vd-yt[hidden] { display: none }
.vd-media.yt { position: relative }
.yt-fac { position: absolute; inset: 0; width: 100%; height: 100%;
  padding: 0; border: 0; background: var(--ink); cursor: pointer; display: block }
.yt-fac img { width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .35s ease }
.yt-fac:hover img { transform: scale(1.04) }
.yt-play { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 62px; height: 62px; border-radius: 50%; background: rgba(255, 255, 255, .94);
  color: var(--navy); display: grid; place-items: center; font-size: 20px; padding-left: 3px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, .34); transition: transform .2s ease }
.yt-fac:hover .yt-play { transform: translate(-50%, -50%) scale(1.09) }
.yt-fac:focus-visible { outline: 3px solid var(--blue); outline-offset: -3px }
.vd-media.yt iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; z-index: 2 }
.vd-share a.ytb { background: #f00; border-color: #f00; color: #fff }