/* ============================================================================
   Case Studies library page
   ============================================================================ */

.cs-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-4); }
@media (min-width: 768px) { .cs-grid { grid-template-columns: repeat(2, 1fr); } }

.cs-card {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--card-radius); padding: var(--space-6);
  display: flex; flex-direction: column; gap: var(--space-3);
  box-shadow: var(--shadow-sm);
  transition: transform 150ms ease-out, box-shadow 150ms ease-out, border-color var(--duration-base) var(--ease-standard);
}
.cs-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  transition: transform 220ms cubic-bezier(0.34, 1.2, 0.64, 1), box-shadow 240ms ease, border-color var(--duration-base) var(--ease-standard);
}

.cs-card__header { display: flex; flex-direction: column; gap: 3px; }
.cs-card__title { font-size: var(--fs-h4); font-weight: var(--fw-semibold); line-height: var(--lh-tight); }
.cs-card__vendor { font-size: var(--fs-xs); color: var(--color-ink-40); }
.cs-card__vendor a { color: var(--color-accent); font-weight: var(--fw-semibold); }
.cs-card__badges { display: flex; flex-wrap: wrap; gap: var(--space-1); margin-top: var(--space-1); }

.cs-card__body { display: flex; flex-direction: column; gap: var(--space-3); }
.cs-card__section { font-size: var(--fs-sm); line-height: var(--lh-body); }
.cs-card__label {
  font-weight: var(--fw-semibold); display: block;
  font-size: var(--fs-xs); text-transform: uppercase;
  letter-spacing: var(--ls-caps); margin-bottom: 1px; color: var(--color-ink);
}
.cs-card__text { color: var(--color-ink-72); }
.cs-card__date { font-size: var(--fs-xs); color: var(--color-ink-40); margin-top: auto; }

/* Search bar */
.cs-controls { margin-bottom: var(--space-6); }

.search-bar { position: relative; }
.search-bar__icon {
  position: absolute; left: var(--space-4); top: 50%;
  transform: translateY(-50%); color: var(--color-ink-40); pointer-events: none;
}
.search-input {
  width: 100%;
  padding: var(--space-3) var(--space-5) var(--space-3) 44px;
  font-family: var(--font-body); font-size: var(--fs-body);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md); background: var(--color-bg);
  color: var(--color-ink);
  transition: border-color var(--duration-base) var(--ease-standard),
              box-shadow var(--duration-base) var(--ease-standard);
}
.search-input:focus {
  outline: none; border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}
.search-input::placeholder { color: var(--color-ink-40); }

.results-header {
  padding-bottom: var(--space-3); margin-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border-strong);
}
.results-count {
  font-size: var(--fs-xs); font-weight: var(--fw-semibold);
  color: var(--color-ink-40); text-transform: uppercase; letter-spacing: var(--ls-caps);
}

.empty-state { text-align: center; padding: var(--space-16) var(--space-8); color: var(--color-ink-40); }
.empty-state p { margin-bottom: var(--space-6); }

/* ── Brand hero ──────────────────────────────────────────────────────────── */

.cs-hero {
  text-align: center;
  padding-bottom: var(--space-10);
}

.cs-hero .kicker { justify-content: center; }

.cs-hero__lead {
  max-width: 58ch;
  margin: var(--space-3) auto 0;
}

.search-bar--hero {
  max-width: 640px;
  margin: var(--space-8) auto 0;
}

.search-bar--hero .search-input {
  font-size: var(--fs-body-lead);
  padding: var(--space-4) var(--space-5) var(--space-4) 48px;
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  box-shadow: 0 0 28px 0 color-mix(in srgb, var(--color-accent) 14%, transparent);
}

.cs-body { padding-top: var(--space-10); }

/* ── Featured trio (transplanted from the homepage strip) ────────────────── */

.cs-band-title { margin-bottom: var(--space-5); }

.cs-featured {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 900px) {
  .cs-featured { grid-template-columns: 1fr; }
}

.cs-featured-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-top: 3px solid var(--color-green);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-sm);
  padding: var(--space-6);
  text-decoration: none;
  color: inherit;
  transition: transform 150ms ease-out, box-shadow 150ms ease-out;
}

.cs-featured-card:hover {
  color: inherit;
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  transition: transform 220ms cubic-bezier(0.34, 1.2, 0.64, 1), box-shadow 240ms ease;
}

.cs-featured-card__vendor {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: var(--ls-caps);
  color: var(--color-green-hover);
}

.cs-featured-card__title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-bold);
  color: var(--color-ink);
  line-height: var(--lh-tight);
}

.cs-featured-card__client {
  font-size: var(--fs-sm);
  color: var(--color-ink-56);
}

.cs-featured-card__link {
  margin-top: auto;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-accent);
}