/* Shared card-grid index sheet:
   /case-studies/index.html
   /portfolio/index.html  (also links portfolio.css for its private nav)
   Edit once, it changes both. */

html { scroll-behavior: smooth; }
body { min-height: 100vh; }
/* ── HEADER ── */
.page-header {
  max-width: 1200px;
  margin: 0 auto;
  padding: 9rem 5% 3rem; /* top padding clears the fixed nav; portfolio.css overrides it */
  border-bottom: 1px solid var(--beige-dark);
}
.page-header h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 0.8rem;
}
.page-header h1 em { font-style: italic; color: var(--violet); }
.page-header p {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-muted);
}
/* ── FILTERS ── */
.filters {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 5%;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 0.35rem 1rem;
  border: 1px solid var(--beige-dark);
  background: transparent;
  border-radius: 20px;
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--violet);
  border-color: var(--violet);
  color: var(--white);
}
/* ── GRID ── */
.grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 5% 6rem;
  columns: 3;
  column-gap: 1.5rem;
}
@media (max-width: 960px) { .grid { columns: 2; } }
@media (max-width: 560px) { .grid { columns: 1; } }
/* ── CARD ── */
.card {
  break-inside: avoid;
  margin-bottom: 2rem;
  background: transparent;
  border: none;
  cursor: pointer;
}
.card-media {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--beige-dark);
  border-radius: 20px;
  transition: transform 0.25s, box-shadow 0.25s;
}
.card:hover .card-media {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(28, 26, 36, 0.12);
}
.card-media img,
.card-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.card:hover .card-media img,
.card:hover .card-media video {
  transform: scale(1.03);
}
/* ── VIDEO CARD LAYERING ── */
.card-poster,
.card-video {
  position: absolute;
  inset: 0;
}
.card-poster {
  z-index: 1;
  transition: opacity 0.7s ease, transform 0.4s ease;
}
.card-video {
  z-index: 0;
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.4s ease;
}
.card-video.is-playing {
  opacity: 1;
  z-index: 2;
}
.card-poster.is-hidden {
  opacity: 0;
  pointer-events: none;
}
/* type badge */
.media-badge {
  position: absolute;
  z-index: 3;
  top: 0.75rem;
  right: 0.75rem;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border-radius: 20px;
  background: rgba(28, 26, 36, 0.55);
  backdrop-filter: blur(6px);
  color: #fff;
}
.card-body {
  padding: 0.75rem 0.25rem 0;
}
.card-title {
  font-family: 'DM Serif Display', serif;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 0.35rem;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.card-category {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--violet);
}
.card-year {
  font-size: 0.65rem;
  font-weight: 300;
  color: var(--text-muted);
}
.card-meta-sep {
  font-size: 0.6rem;
  color: var(--beige-dark);
}
.card-details {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.25rem;
}
.card-client,
.card-location {
  font-size: 0.62rem;
  font-weight: 300;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
/* hidden */
.card[data-hidden="true"] { display: none; }
img { -webkit-user-drag: none; }