/* Insights hub (/insights): page-level styles. Shared tokens/components come from tyten-v2.css. */

:root,
[data-theme="light"] {
  --ins-on-accent: #211E28;                  /* ink on accent fills (same in both themes) */
  --ins-pill-border: rgba(33, 30, 40, 0.35);
  --ins-row-rule: rgba(33, 30, 40, 0.18);
  --ins-box-border: rgba(33, 30, 40, 0.25);
  --ins-card-border: rgba(33, 30, 40, 0.2);
}
[data-theme="dark"] {
  --ins-on-accent: #211E28;
  --ins-pill-border: rgba(255, 255, 255, 0.35);
  --ins-row-rule: rgba(246, 210, 176, 0.18);
  --ins-box-border: rgba(255, 255, 255, 0.28);
  --ins-card-border: rgba(246, 210, 176, 0.22);
}

/* ---------------------------------------------------------------- 1. Hero */
.ins-hero__inner { display: grid; gap: 34px; justify-items: start; }
.ins-hero__title { margin: 0; }
.ins-hero__lead { margin: 0; max-width: 760px; }

.ins-filters { display: flex; flex-wrap: wrap; gap: 10px; }
html:not(.v2-js) .ins-filters { display: none; }   /* filters need JS; without it every article is shown */
.ins-filter {
  font: inherit;
  font-size: var(--v2-fs-ui);
  font-weight: 600;
  line-height: 1.2;
  padding: 11px 20px;
  border-radius: var(--v2-r-pill);
  border: 1px solid var(--ins-pill-border);
  background: transparent;
  color: var(--v2-text);
  cursor: pointer;
  transition: background-color var(--v2-dur) var(--v2-ease), border-color var(--v2-dur) var(--v2-ease), color var(--v2-dur) var(--v2-ease);
}
.ins-filter:hover { border-color: var(--v2-accent-deep); background: var(--v2-card-bg-hover); }
.ins-filter:focus-visible { outline: 2px solid var(--v2-focus); outline-offset: 3px; }
.ins-filter[aria-pressed="true"] { background: var(--v2-accent); border-color: var(--v2-accent); color: var(--ins-on-accent); }

/* ------------------------------------------------------- 2. Featured article */
.ins-featured { padding-block: clamp(3.5rem, 1.5rem + 6.5vw, 7.5rem); }
.ins-featured[hidden] { display: none; }
.ins-featured__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(380px, 100%), 1fr));
  gap: clamp(2.5rem, 1rem + 5.5vw, 6rem);
  align-items: center;
}
.ins-featured__text { display: grid; gap: 30px; justify-items: start; }
.ins-featured__text .v2-h2 { margin: 0; }
.ins-featured__tags { display: flex; flex-wrap: wrap; gap: 10px; }
.ins-pill {
  display: inline-block;
  padding: 7px 14px;
  border-radius: var(--v2-r-pill);
  border: 1px solid var(--v2-chip-border);
  font-size: var(--v2-fs-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
  color: var(--v2-text-muted);
}
.ins-pill--new { background: var(--v2-accent); border-color: var(--v2-accent); color: var(--ins-on-accent); }
.ins-featured__lead { margin: 0; max-width: 560px; color: var(--v2-text-muted); font-size: clamp(1.125rem, 1.03rem + 0.38vw, 1.3125rem); }
.ins-featured__meta {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 16px 32px;
  padding-top: 6px;
  font-size: var(--v2-fs-small);
  color: var(--v2-text-muted);
}
.ins-featured__link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: clamp(1rem, 0.95rem + 0.2vw, 1.125rem);
  font-weight: 700;
  color: var(--v2-accent-ink);
  text-decoration: none;
}
.ins-featured__link:hover { text-decoration: underline; text-underline-offset: 4px; }
.ins-featured__link:hover .v2-btn__arrow { transform: translateX(6px); }
.ins-featured__link:focus-visible { outline: 2px solid var(--v2-focus); outline-offset: 4px; border-radius: 4px; }

/* "Five tests" card */
.ins-tests {
  display: grid;
  gap: 34px;
  align-content: center;
  min-height: clamp(20rem, 15rem + 18vw, 27.5rem);
  padding: clamp(1.875rem, 1.2rem + 2.8vw, 3.5rem) clamp(1.625rem, 1.1rem + 2.6vw, 3.25rem);
  border: 1px solid var(--ins-card-border);
  border-radius: var(--v2-r-panel);
  background: var(--v2-card-bg);
}
.ins-tests__big {
  margin: 0;
  font-family: var(--v2-font-display);
  font-weight: 500;
  font-size: clamp(3rem, 2.15rem + 3.5vw, 5.25rem);
  line-height: 1;
  letter-spacing: -0.04em;
}
.ins-tests__boxes { display: flex; flex-wrap: nowrap; gap: clamp(6px, 0.2rem + 0.6vw, 12px); margin: 0; padding: 0; list-style: none; }
.ins-tests__box {
  display: flex; align-items: center; justify-content: center;
  flex: 0 1 52px;
  aspect-ratio: 1;
  min-width: 0;
  max-width: 52px;
  border-radius: 12px;
  border: 1px solid var(--v2-accent);
  background: var(--v2-accent);
  color: var(--ins-on-accent);
  font-family: var(--v2-font-display);
  font-weight: 600;
  font-size: clamp(1.0625rem, 0.95rem + 0.4vw, 1.25rem);
  transition: background-color 500ms ease, border-color 500ms ease, color 500ms ease;
}
/* JS animates the boxes lighting one by one; without JS / with reduced motion all five stay lit */
.ins-tests.is-animated .ins-tests__box:not(.is-lit) { background: transparent; border-color: var(--ins-box-border); color: var(--v2-text-muted); }
.ins-tests__note { margin: 0; color: var(--v2-text-muted); font-size: var(--v2-fs-body); line-height: var(--v2-lh-body); }

/* ------------------------------------------------------------- 3. Articles */
.ins-articles { padding-top: 40px; }
.ins-articles__head { margin-bottom: var(--v2-stack-lg); }
.ins-articles__head .v2-h2 { margin: 0; }
.ins-list { list-style: none; margin: 0; padding: 0; border-bottom: 1px solid var(--ins-row-rule); }
.ins-list__item[hidden] { display: none; }
.ins-row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px 36px;
  align-items: center;
  padding: clamp(1.75rem, 1.4rem + 1.2vw, 2.375rem) 0;
  border-top: 1px solid var(--ins-row-rule);
  color: var(--v2-text);
  text-decoration: none;
}
@media (min-width: 900px) { .ins-row { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); } }
.ins-row:focus-visible { outline: 2px solid var(--v2-focus); outline-offset: 4px; border-radius: 4px; }
.ins-row__meta { display: grid; gap: 10px; align-content: start; }
@media (min-width: 900px) { .ins-row__meta { align-self: center; } }
.ins-row__kind { font-size: 0.75rem; letter-spacing: var(--v2-ls-eyebrow); text-transform: uppercase; color: var(--v2-text-muted); }
.ins-row__date { font-size: 0.875rem; color: var(--v2-text-muted); }
.ins-row__main { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: center; padding-right: 8px; /* room for the arrow's 8px slide */ }
.ins-row__copy { display: grid; gap: 10px; }
.ins-row__title {
  margin: 0;
  font-family: var(--v2-font-display);
  font-weight: 500;
  font-size: clamp(1.625rem, 1.43rem + 0.8vw, 2.125rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  transition: opacity 600ms ease;
}
.ins-row__excerpt { margin: 0; font-size: 1rem; line-height: 1.5; color: var(--v2-text-muted); }
.ins-row__arrow {
  font-size: 1.625rem; line-height: 1;
  color: var(--v2-text); opacity: 0.35;
  transition: transform 600ms ease, opacity 600ms ease, color 600ms ease;
}
/* Desktop: one row at a time is highlighted (JS cycles .is-active; hover/focus take over) */
@media (min-width: 900px) and (prefers-reduced-motion: no-preference) {
  .ins-row__title { opacity: 0.5; }
  .ins-row.is-active .ins-row__title,
  .ins-row:hover .ins-row__title,
  .ins-row:focus-visible .ins-row__title { opacity: 1; }
  .ins-list:hover .ins-row.is-active:not(:hover) .ins-row__title { opacity: 0.5; }
}
.ins-row.is-active .ins-row__arrow,
.ins-row:hover .ins-row__arrow,
.ins-row:focus-visible .ins-row__arrow { opacity: 1; color: var(--v2-accent); transform: translateX(8px); }
.ins-list:hover .ins-row.is-active:not(:hover) .ins-row__arrow { opacity: 0.35; color: var(--v2-text); transform: none; }
@media (prefers-reduced-motion: reduce) {
  .ins-row__arrow, .ins-row__title { transition: none; }
}

/* ---------------------------------------------------------- 4. Coming next */
.ins-next__grid { list-style: none; margin: 0; padding: 0; }
.ins-next__grid .v2-h4 { margin: 0; }
.ins-next__body { margin: 0; font-size: var(--v2-fs-body); line-height: var(--v2-lh-body); color: var(--v2-text-muted); }

/* -------------------------------------------------------------- 5. Closing */
.ins-closing { padding-top: clamp(3.25rem, 2.2rem + 4.5vw, 6.25rem); padding-bottom: clamp(3.25rem, 2.9rem + 1.5vw, 4.5rem); }
.ins-closing .v2-h2 { margin: 0; }
.ins-closing .v2-sub { margin: 0; }