/* ===========================================================================
   /insights/ — index (paginated grid + filter + search) + single post layout
   =========================================================================== */

/* ---------- Intro ---------- */
.ins-intro {
  text-align: center;
  padding: clamp(5rem, 4rem + 5vw, 8rem) 0 clamp(2rem, 1rem + 2vw, 4rem);
  position: relative;
  overflow: hidden;
}
.ins-intro::before {
  content: '';
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 70%;
  background: radial-gradient(ellipse at 50% 0%, rgba(4, 230, 247, 0.12), transparent 65%);
  pointer-events: none;
}
.ins-intro .container { position: relative; z-index: 1; max-width: 900px; }
.ins-intro h1 {
  font-size: clamp(3rem, 2rem + 6vw, 6rem);
  margin-bottom: 1.5rem;
}
.ins-intro .lead { max-width: 60ch; margin-inline: auto; }

/* Search */
.ins-search-wrap {
  max-width: 560px;
  margin: 2.5rem auto 0;
  position: relative;
}
.ins-search {
  width: 100%;
  padding: 1rem 1.25rem 1rem 3rem;
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: 999px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.ins-search:focus {
  outline: none;
  border-color: var(--teal);
  background: var(--ink);
}
.ins-search::placeholder { color: var(--mute-2); }
.ins-search-wrap::before {
  content: '';
  position: absolute;
  left: 1.15rem;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border: 2px solid var(--mute);
  border-radius: 50%;
  background:
    linear-gradient(45deg, transparent 60%, var(--mute) 60% 80%, transparent 80%) no-repeat;
}

/* Filter bar */
.ins-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin: clamp(2rem, 1rem + 2vw, 3rem) auto 0;
  padding-inline: var(--gutter);
}
.ins-filter button {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--mute);
  border: 1px solid var(--ink-3);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease), background 0.15s var(--ease);
}
.ins-filter button:hover {
  color: var(--white);
  border-color: var(--mute);
}
.ins-filter button.is-active {
  color: var(--black);
  background: var(--gradient);
  border-color: transparent;
}

/* Grid */
.ins-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  padding-block: clamp(3rem, 2rem + 3vw, 5rem) clamp(2rem, 1rem + 2vw, 4rem);
}

.ins-card {
  display: block;
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: 6px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
  position: relative;
  overflow: hidden;
}
.ins-card::after {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--gradient);
  transform: scaleX(0.3);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.ins-card:hover {
  transform: translateY(-4px);
  border-color: transparent;
}
.ins-card:hover::after { transform: scaleX(1); }
.ins-card-body {
  padding: 1.75rem 1.5rem;
  min-height: 200px;
  display: flex;
  flex-direction: column;
}
.ins-card-cat {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 0.85rem;
  display: inline-block;
}
.ins-card-title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 1.1rem + 0.6vw, 1.7rem);
  text-transform: uppercase;
  line-height: 1.05;
  color: var(--white);
  margin: 0 0 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ins-card-excerpt {
  color: var(--mute);
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0 0 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.ins-card-arrow {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--teal);
  transition: transform 0.25s var(--ease), color 0.25s var(--ease);
  align-self: flex-start;
}
.ins-card:hover .ins-card-arrow {
  transform: translateX(6px);
  color: var(--white);
}

/* Lazy-load progressive reveal */
.ins-card[hidden] { display: none !important; }
.ins-empty {
  text-align: center;
  color: var(--mute);
  padding: 4rem 0;
  grid-column: 1 / -1;
}
.ins-sentinel {
  width: 100%;
  height: 1px;
  margin-bottom: 4rem;
}

/* Pagefind search results panel */
.ins-search-results {
  max-width: 760px;
  margin: 0 auto;
  padding-inline: var(--gutter);
}
.ins-search-results .pagefind-ui {
  --pagefind-ui-primary: var(--teal);
  --pagefind-ui-text: var(--white);
  --pagefind-ui-background: var(--ink-2);
  --pagefind-ui-border: var(--ink-3);
  --pagefind-ui-tag: var(--teal);
  --pagefind-ui-border-width: 1px;
  --pagefind-ui-border-radius: 6px;
}
/* Drawer holds the results — Pagefind nests it INSIDE the form, so we can't
   hide the form itself. Hide only the input + clear button. */
.ins-search-results .pagefind-ui__form { width: 100%; }
.ins-search-results .pagefind-ui__form::before { display: none !important; }
.ins-search-results .pagefind-ui__search-input,
.ins-search-results .pagefind-ui__search-clear {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  clip-path: inset(50%) !important;
  overflow: hidden !important;
  border: 0 !important;
  padding: 0 !important;
}
.ins-search-results .pagefind-ui__message {
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  color: var(--mute);
  text-transform: uppercase;
  font-size: 0.9rem;
  margin: 0 0 1.5rem;
}
.ins-search-results .pagefind-ui__result {
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: 6px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}
.ins-search-results .pagefind-ui__result-link {
  color: var(--white);
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 1.1rem;
  text-decoration: none;
}
.ins-search-results .pagefind-ui__result-link:hover { color: var(--teal); }
.ins-search-results .pagefind-ui__result-excerpt { color: var(--mute); font-size: 0.95rem; }
.ins-search-results mark { background: rgba(4, 230, 247, 0.25); color: var(--white); }

/* When search is active, hide the grid + filter */
.ins-grid.is-search-active,
.ins-filter.is-search-active { display: none; }

/* ---------- Single Post ---------- */
.ins-hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(40vh, 30vh + 10vw, 55vh);
  display: grid;
  align-items: end;
  overflow: hidden;
  padding-block: clamp(5rem, 4rem + 5vw, 8rem) clamp(2rem, 2rem + 2vw, 4rem);
  background: var(--black);
}
.ins-hero-scrim {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 60% 50% at 15% 100%, rgba(0, 105, 170, 0.55), transparent 70%),
    radial-gradient(ellipse 50% 40% at 85% 10%, rgba(4, 230, 247, 0.25), transparent 65%),
    linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.6) 100%);
}
.ins-hero::after {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--teal) 30%, var(--blue) 70%, transparent);
  opacity: 0.5;
}
.ins-hero .container { max-width: 900px; }
.ins-hero .breadcrumb {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
}
.ins-hero .breadcrumb a { color: rgba(255,255,255,0.75); transition: color 0.15s var(--ease); }
.ins-hero .breadcrumb a:hover { color: var(--teal); }
.ins-hero h1 {
  font-size: clamp(2.25rem, 1.5rem + 4vw, 4.5rem);
  line-height: 1;
  margin: 0;
  max-width: 22ch;
}
.ins-byline {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-top: 1.5rem;
  margin-bottom: 0;
}

/* Body content */
.ins-body { padding: clamp(3rem, 2rem + 3vw, 5rem) 0 clamp(4rem, 2rem + 5vw, 7rem); }
.ins-body .container { max-width: 720px; }
.ins-body h2 {
  font-family: var(--font-display);
  font-size: var(--step-2);
  text-transform: uppercase;
  line-height: 1.05;
  margin: 2.5rem 0 1rem;
}
.ins-body h3 {
  font-family: var(--font-display);
  font-size: var(--step-1);
  margin: 2rem 0 0.75rem;
  text-transform: uppercase;
}
.ins-body h4 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.2em;
  color: var(--teal);
  text-transform: uppercase;
  margin: 2.5rem 0 0.5rem;
}
.ins-body p {
  font-size: var(--step-0);
  line-height: 1.7;
  color: var(--mute);
  margin: 0 0 1.25rem;
  max-width: 70ch;
}
.ins-body p strong, .ins-body strong, .ins-body b { color: var(--white); font-weight: 600; }
.ins-body a {
  color: var(--teal);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.ins-body a:hover { color: var(--white); }
.ins-body ul, .ins-body ol {
  margin: 0 0 1.5rem;
  padding-left: 1.25rem;
  color: var(--mute);
  font-size: var(--step-0);
  line-height: 1.7;
}
.ins-body li { margin-bottom: 0.5rem; }
.ins-body ul li::marker { color: var(--teal); }
.ins-body blockquote {
  border-left: 2px solid var(--teal);
  margin: 2rem 0;
  padding-left: 1.5rem;
  font-size: var(--step-1);
  color: var(--white);
  line-height: 1.5;
}
.ins-body .post-video {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  margin: 2rem 0;
  border-radius: 6px;
  overflow: hidden;
  background: var(--ink-2);
}
.ins-body .post-video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* Keep reading */
.ins-related {
  padding: clamp(3rem, 2rem + 3vw, 5rem) 0;
  background: var(--ink);
  border-top: 1px solid var(--ink-2);
}
.ins-related h3 {
  text-align: center;
  font-size: var(--step-3);
  margin: 0 0 2rem;
}