/* ====================================================================
   MEDIA HUB - STAGGERED MASONRY VIDEO GRID
   From runr-media-hub.html prototype.
   Chapter-based layout with organic vertical rhythm.
==================================================================== */

/* ---------- DESIGN TOKENS ---------- */
.media-hub-section {
  --mh-ink: #131210;
  --mh-ink-soft: #26241f;
  --mh-bone: #f5f2ea;
  --mh-bone-dim: #ece7db;
  --mh-paper: #faf8f2;
  --mh-orange: #ff4a1c;
  --mh-orange-deep: #c22e08;
  --mh-orange-soft: #ffd9c9;
  --mh-line: rgba(19, 18, 16, 0.12);
  --mh-line-strong: rgba(19, 18, 16, 0.28);
  --mh-gap: 22px;
  --mh-radius: 18px;
  --mh-ease-soft: cubic-bezier(0.22, 0.61, 0.36, 1);
  --mh-ease-out: cubic-bezier(0.16, 0.84, 0.44, 1);
}

/* ---------- CHAPTER SECTION ---------- */
.mh-chapter {
  position: relative;
}

.mh-chapter:first-child {
  padding-top: 60px;
}

/* ---------- ORANGE DECORATIVE CIRCLES ---------- */
.media-hub-section {
  position: relative;
  overflow: hidden;
}

.media-hub-section::before {
  content: "";
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(255, 74, 28, 0.25) 0%,
    rgba(255, 74, 28, 0.08) 40%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
  top: 30%;
  left: -120px;
}

.media-hub-section::after {
  content: "";
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(255, 74, 28, 0.25) 0%,
    rgba(255, 74, 28, 0.08) 40%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
  top: 55%;
  right: -120px;
}

/* ---------- CHAPTER LABELS ---------- */
.mh-chapter-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 26px;
  margin-bottom: 44px;
  border-bottom: 1px solid var(--mh-line);
}

.mh-chapter-label h2 {
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(30px, 4.4vw, 64px);
  line-height: 0.95;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--mh-ink);
}

.mh-chapter-desc {
  font-size: 13.5px;
  color: var(--mh-ink-soft);
  max-width: 280px;
  text-align: right;
  line-height: 1.55;
}

/* ---------- VIEW MORE BUTTON ---------- */

@media (max-width: 720px) {
  .mh-chapter-desc {
    text-align: left;
  }
}

/* ---------- THE GRID ---------- */
.mh-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--mh-gap);
  align-items: start;
  width: 100%;
}

/* ---------- BASE REEL CARD ---------- */
.mh-grid .mh-reel {
  position: relative;
  border-radius: var(--mh-radius);
  overflow: hidden;
  aspect-ratio: 9/16;
  background: var(--mh-ink-soft);
  will-change: transform, opacity;
  transform: translate3d(0, 60px, 0) scale(0.94);
  opacity: 0;
  border: 1.4px solid transparent;
  box-shadow: none;
  isolation: isolate;
}

/* Revealed state */
.mh-grid .mh-reel.mh-revealed {
  transform: translate3d(0, 0, 0) scale(1);
  opacity: 1;
}

/* ---------- STAGGERED VERTICAL RHYTHM (pattern A) ---------- */
.mh-grid--a > .mh-reel:nth-child(5n + 1) {
  margin-top: 0;
}

.mh-grid--a > .mh-reel:nth-child(5n + 2) {
  margin-top: 56px;
}

.mh-grid--a > .mh-reel:nth-child(5n + 3) {
  margin-top: 18px;
}

.mh-grid--a > .mh-reel:nth-child(5n + 4) {
  margin-top: 84px;
}

.mh-grid--a > .mh-reel:nth-child(5n + 5) {
  margin-top: 34px;
}

/* ---------- STAGGERED VERTICAL RHYTHM (pattern B) ---------- */
.mh-grid--b > .mh-reel:nth-child(5n + 1) {
  margin-top: 40px;
}

.mh-grid--b > .mh-reel:nth-child(5n + 2) {
  margin-top: 0;
}

.mh-grid--b > .mh-reel:nth-child(5n + 3) {
  margin-top: 70px;
}

.mh-grid--b > .mh-reel:nth-child(5n + 4) {
  margin-top: 22px;
}

.mh-grid--b > .mh-reel:nth-child(5n + 5) {
  margin-top: 52px;
}

/* ---------- STAGGERED VERTICAL RHYTHM (pattern C) ---------- */
.mh-grid--c > .mh-reel:nth-child(5n + 1) {
  margin-top: 64px;
}

.mh-grid--c > .mh-reel:nth-child(5n + 2) {
  margin-top: 28px;
}

.mh-grid--c > .mh-reel:nth-child(5n + 3) {
  margin-top: 0;
}

.mh-grid--c > .mh-reel:nth-child(5n + 4) {
  margin-top: 48px;
}

.mh-grid--c > .mh-reel:nth-child(5n + 5) {
  margin-top: 14px;
}

/* ---------- RESPONSIVE: 4 columns ---------- */
@media (max-width: 1240px) {
  .mh-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .mh-grid--a > .mh-reel:nth-child(5n + 4),
  .mh-grid--a > .mh-reel:nth-child(5n + 5),
  .mh-grid--b > .mh-reel:nth-child(5n + 4),
  .mh-grid--b > .mh-reel:nth-child(5n + 5),
  .mh-grid--c > .mh-reel:nth-child(5n + 4),
  .mh-grid--c > .mh-reel:nth-child(5n + 5) {
    margin-top: 0;
  }

  .mh-grid--a > .mh-reel:nth-child(4n + 1) {
    margin-top: 10px;
  }

  .mh-grid--a > .mh-reel:nth-child(4n + 2) {
    margin-top: 60px;
  }

  .mh-grid--a > .mh-reel:nth-child(4n + 3) {
    margin-top: 26px;
  }

  .mh-grid--a > .mh-reel:nth-child(4n + 4) {
    margin-top: 74px;
  }

  .mh-grid--b > .mh-reel:nth-child(4n + 1) {
    margin-top: 50px;
  }

  .mh-grid--b > .mh-reel:nth-child(4n + 2) {
    margin-top: 0;
  }

  .mh-grid--b > .mh-reel:nth-child(4n + 3) {
    margin-top: 64px;
  }

  .mh-grid--b > .mh-reel:nth-child(4n + 4) {
    margin-top: 20px;
  }

  .mh-grid--c > .mh-reel:nth-child(4n + 1) {
    margin-top: 20px;
  }

  .mh-grid--c > .mh-reel:nth-child(4n + 2) {
    margin-top: 64px;
  }

  .mh-grid--c > .mh-reel:nth-child(4n + 3) {
    margin-top: 0;
  }

  .mh-grid--c > .mh-reel:nth-child(4n + 4) {
    margin-top: 44px;
  }
}

/* ---------- RESPONSIVE: 3 columns ---------- */
@media (max-width: 900px) {
  .mh-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .mh-grid > .mh-reel {
    margin-top: 0 !important;
  }

  .mh-grid > .mh-reel:nth-child(3n + 2) {
    margin-top: 44px !important;
  }

  .mh-grid > .mh-reel:nth-child(3n + 3) {
    margin-top: 16px !important;
  }
}

/* ---------- RESPONSIVE: 2 columns ---------- */
@media (max-width: 600px) {
  .media-hub-section {
    --mh-gap: 14px;
  }

  .mh-chapter-label {
    flex-direction: column;
    align-items: start;
  }

  .mh-view-more-icon {
    width: 28px !important;
    height: 28px !important;
  }

  .mh-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .mh-grid > .mh-reel {
    margin-top: 0 !important;
  }

  .mh-grid > .mh-reel:nth-child(2n) {
    margin-top: 34px !important;
  }

  .mh-chapter {
    padding: 60px 0 20px;
  }

  .mh-chapter-label {
    margin-bottom: 28px;
    padding-bottom: 18px;
  }
}

/* ---------- POSTER IMAGE ---------- */
.mh-grid .mh-reel .video-poster {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  border-radius: inherit;
  background: linear-gradient(160deg, #2a2822, #151410);
}

.mh-grid .mh-reel .video-poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  transform: scale(1.12);
  transition:
    opacity 0.5s var(--mh-ease-soft),
    transform 6s var(--mh-ease-soft);
}

/* Ken Burns when card is in viewport */
.mh-grid .mh-reel.is-playing .video-poster img {
  animation: mh-kenburns 14s ease-in-out infinite alternate;
}

@keyframes mh-kenburns {
  0% {
    transform: scale(1.12) translate(0, 0);
  }

  100% {
    transform: scale(1.22) translate(-1.4%, -1.6%);
  }
}

/* Faster Ken Burns on hover */
.mh-grid .mh-reel:hover .video-poster img {
  animation-duration: 6s;
}

/* ---------- VIDEO CONTAINER ---------- */
.mh-grid .mh-reel .video-container {
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: hidden;
  border-radius: inherit;
}

.mh-grid .mh-reel .video-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* ---------- YOUTUBE IFRAME ---------- */
.mh-grid .mh-reel .video-container iframe {
  display: block !important;
  width: 400% !important;
  height: 200% !important;
  left: -150% !important;
  top: -50% !important;
  max-width: none !important;
  border: 0 !important;
  position: absolute !important;
  pointer-events: none !important;
  opacity: 0;
  transition: opacity 0.65s ease;
  border-radius: inherit !important;
}

.mh-grid .mh-reel .video-container iframe.mh-vid-ready {
  opacity: 1 !important;
}

/* ---------- SCRIM (gradient overlay) ---------- */
.mh-grid .mh-reel .mh-reel-scrim {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(19, 18, 16, 0) 45%,
    rgba(19, 18, 16, 0.72) 100%
  );
  border-radius: inherit;
}

/* ---------- HOVER - LIFT + ORANGE GLOW BORDER ---------- */
@media (hover: hover) and (pointer: fine) {
  .mh-grid .mh-reel {
    transition:
      transform 0.5s var(--mh-ease-out),
      opacity 0.8s var(--mh-ease-out),
      border-color 0.35s var(--mh-ease-soft),
      box-shadow 0.35s var(--mh-ease-soft);
  }

  .mh-grid .mh-reel:hover {
    transform: translate3d(0, -6px, 0) scale(1.035);
    z-index: 5;
    border-color: var(--mh-orange);
    box-shadow: 0 24px 50px -18px rgba(255, 74, 28, 0.45);
    opacity: 1;
  }
}

/* ---------- REDUCED MOTION ---------- */
@media (prefers-reduced-motion: reduce) {
  .mh-grid .mh-reel {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .mh-grid .mh-reel .video-poster img {
    animation: none;
  }
}