/* ============================================================
   MEMTEST INDUSTRIAL — Video hub page
   ============================================================ */

/* ---- Hero ---- */
.vh-hero {
  padding-top: 12rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--ink-line);
  position: relative;
  overflow: hidden;
}
.vh-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 70% at 50% 0%, var(--copper-glow) 0%, transparent 60%);
  pointer-events: none;
}
.vh-hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: end; }
.vh-hero__title { font-size: var(--fs-mega); line-height: 0.92; letter-spacing: -0.025em; max-width: 14ch; }
.vh-hero__title em { font-style: italic; color: var(--copper-bright); }
.vh-hero__title .stroke { -webkit-text-stroke: 1px var(--paper); color: transparent; }
.vh-hero__lead { color: var(--paper-dim); font-size: 1.1rem; line-height: 1.6; max-width: 46ch; }
.vh-hero__lead em { font-family: var(--font-display); font-style: italic; color: var(--copper-bright); }

@media (max-width: 880px) {
  .vh-hero { padding-top: 9rem; }
  .vh-hero__inner { grid-template-columns: 1fr; gap: 2rem; }
}

/* ---- Featured player ---- */
.vh-feature {
  padding-block: clamp(3rem, 5vw, 4rem);
  border-bottom: 1px solid var(--ink-line);
}
.vh-feature__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}
.vh-feature__player {
  aspect-ratio: 16 / 9;
  background: var(--ink-panel);
  border: 1px solid var(--ink-line);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}
.vh-feature__player img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.8) brightness(0.85); transition: filter var(--t-med) var(--ease-out), transform var(--t-slow) var(--ease-out); }
.vh-feature__player:hover img { filter: saturate(0.95) brightness(0.95); transform: scale(1.02); }
.vh-feature__player .play-large {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 88px; height: 88px;
  border: 1px solid var(--paper);
  border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(8,9,10,0.4);
  backdrop-filter: blur(8px);
  transition: background var(--t-med) var(--ease-out), transform var(--t-med) var(--ease-out), border-color var(--t-med) var(--ease-out);
}
.vh-feature__player:hover .play-large { background: var(--copper); border-color: var(--copper); transform: translate(-50%, -50%) scale(1.06); }
.vh-feature__player .play-large svg { width: 26px; height: 26px; fill: var(--paper); margin-left: 3px; transition: fill var(--t-med) var(--ease-out); }
.vh-feature__player:hover .play-large svg { fill: var(--ink-void); }
.vh-feature__player .duration-large {
  position: absolute;
  bottom: 1rem; right: 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.1em;
  background: rgba(8,9,10,0.85);
  backdrop-filter: blur(4px);
  padding: 0.4em 0.8em;
  color: var(--paper);
  border: 1px solid var(--ink-line);
}
.vh-feature__player .corner-label {
  position: absolute; top: 1rem; left: 1rem;
  font-family: var(--font-mono); font-size: var(--fs-micro);
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--copper); background: rgba(8,9,10,0.8);
  backdrop-filter: blur(4px); padding: 0.4em 0.7em;
  border: 1px solid var(--copper-deep);
}

.vh-feature__body { display: flex; flex-direction: column; gap: 1.25rem; padding-top: 1rem; }
.vh-feature__title { font-size: var(--fs-h2); line-height: 1.05; max-width: 16ch; }
.vh-feature__title em { font-style: italic; color: var(--copper-bright); }
.vh-feature__desc { color: var(--paper-dim); font-size: 1.05rem; line-height: 1.6; }
.vh-feature__chapters { display: flex; flex-direction: column; gap: 0.4rem; margin-top: 0.5rem; }
.vh-feature__chapter {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1rem;
  padding: 0.7em 0;
  border-bottom: 1px dashed var(--ink-line);
  font-size: var(--fs-small);
  color: var(--paper-dim);
  cursor: pointer;
  transition: color var(--t-fast) var(--ease-out), padding var(--t-fast) var(--ease-out);
}
.vh-feature__chapter:hover { color: var(--paper); padding-left: 0.5rem; }
.vh-feature__chapter .ts { font-family: var(--font-mono); color: var(--copper); }

@media (max-width: 980px) { .vh-feature__grid { grid-template-columns: 1fr; } }

/* ---- Filter toolbar ---- */
.vh-toolbar {
  padding-block: 2rem 1rem;
  border-bottom: 1px solid var(--ink-line);
  position: sticky;
  top: 64px;
  z-index: 50;
  background: rgba(13,14,16,0.94);
  backdrop-filter: blur(12px);
}
.vh-toolbar__row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.vh-toolbar__count {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.1em;
  color: var(--paper-dim);
  text-align: right;
}
.vh-toolbar__count b { color: var(--copper); font-weight: 400; font-size: 1.4rem; font-family: var(--font-display); }

/* ---- Video grid ---- */
.vh-grid-section { padding-block: clamp(3rem, 5vw, 4rem) var(--pad-section); }
.vh-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.video-card.is-hidden { display: none; }
@media (max-width: 980px) { .vh-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .vh-grid { grid-template-columns: 1fr; } }

/* ---- Series/playlist band ---- */
.vh-series {
  padding-block: clamp(3rem, 5vw, 4rem);
  border-top: 1px solid var(--ink-line);
  background: var(--ink-void);
}
.vh-series__head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 2rem;
  align-items: end;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--ink-line);
}
.vh-series__num { font-family: var(--font-display); font-size: clamp(3rem, 6vw, 5rem); line-height: 1; color: var(--copper); font-feature-settings: "lnum", "tnum"; }
.vh-series__title { font-size: var(--fs-h2); max-width: 18ch; }
.vh-series__title em { font-style: italic; color: var(--copper-bright); }
.vh-series__meta { color: var(--paper-dim); font-size: var(--fs-small); max-width: 36ch; text-align: right; }
@media (max-width: 880px) { .vh-series__head { grid-template-columns: 1fr; gap: 1rem; } .vh-series__meta { text-align: left; } }

/* ---- Empty state ---- */
.vh-empty {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--paper-faint);
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  display: none;
}
.vh-empty.is-visible { display: block; }
.vh-empty b { color: var(--copper); font-weight: 400; }

/* ---- Videos Grid ---- */
.videos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}
.video-card {
  background: var(--ink-raised);
  border: 1px solid var(--ink-line);
  overflow: hidden;
  transition: background var(--t-fast) var(--ease-out), border-color var(--t-fast) var(--ease-out);
}
.video-card:hover {
  background: var(--ink-panel);
  border-color: var(--copper);
}
.video-card__thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.video-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.85);
  transition: transform var(--t-med) var(--ease-out), filter var(--t-fast) var(--ease-out);
}
.video-card:hover .video-card__thumb img {
  transform: scale(1.05);
  filter: brightness(1);
}
.video-card__play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  background: rgba(200,149,109,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-void);
  transition: transform var(--t-fast) var(--ease-out), background var(--t-fast) var(--ease-out);
}
.video-card:hover .video-card__play {
  transform: translate(-50%, -50%) scale(1.1);
  background: var(--copper-bright);
}
.video-card__play svg {
  width: 22px;
  height: 22px;
  margin-left: 3px;
}
.video-card__duration {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.08em;
  color: var(--paper);
  background: rgba(8,9,10,0.85);
  padding: 0.3em 0.6em;
  border: 1px solid var(--ink-line);
}
.video-card__body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.video-card__body h3 {
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  line-height: 1.2;
  color: var(--paper);
}
.video-card__body p {
  color: var(--paper-dim);
  font-size: var(--fs-small);
  line-height: 1.5;
}
.video-card__meta {
  display: flex;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper-faint);
  margin-top: auto;
}

@media (max-width: 880px) {
  .videos-grid { grid-template-columns: 1fr; }
}