/* ==========================================================================
   Core9 — Insights (blog listing + articles). Same tokens as main.css.
   ========================================================================== */

/* ---------------------------------------------------------------- cards */
.ameta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  font-size: 13px;
  color: var(--dim);
}
.ameta span + span::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--dim);
  margin-right: 14px;
  vertical-align: middle;
}
.ameta .ameta__cat {
  font-family: var(--ff-tech);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--p-200);
  padding: 6px 11px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
}
.ameta .ameta__cat + span::before {
  display: none;
}
.acard {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  overflow: hidden;
  color: inherit;
  text-decoration: none;
  transition: transform 0.6s var(--ease), border-color 0.4s;
}
.acard:hover {
  transform: translateY(-4px);
  border-color: rgba(224, 175, 77, 0.4);
}
.acard__img {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background:
    radial-gradient(80% 120% at 85% 0%, rgba(117, 90, 161, 0.55), transparent 65%),
    linear-gradient(135deg, #1b1230, #0d0913);
}
.acard__img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(13, 9, 19, 0.55));
  pointer-events: none;
}
.acard__img picture {
  display: contents;
}
.acard__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.2s var(--ease);
}
.acard:hover .acard__img img {
  transform: scale(1.04);
}
.acard__body {
  position: relative;
  z-index: 1;
  padding: 24px 26px 26px;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 12px;
}
.acard h3 {
  margin: 4px 0 0;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: #fff;
  text-wrap: balance;
}
.acard p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--muted);
}
.acard .link-arrow {
  margin-top: 6px;
  justify-self: start;
}
.acard--big {
  grid-template-rows: none;
  grid-template-columns: 1.25fr 1fr;
  min-height: 420px;
}
.acard--big .acard__img {
  aspect-ratio: auto;
  height: 100%;
}
.acard--big .acard__img::after {
  background: linear-gradient(90deg, transparent 60%, rgba(13, 9, 19, 0.5));
}
.acard--big .acard__body {
  padding: clamp(28px, 3.4vw, 48px);
  align-content: center;
  grid-template-rows: none;
  gap: 16px;
}
.acard--big h3 {
  font-size: clamp(1.6rem, 2.4vw, 2.3rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
}
.acard--big p {
  font-size: 16px;
}
.agrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* ---------------------------------------------------------------- listing */
.ins-hero.hero {
  padding-bottom: 40px;
}
.ins-hero h1 {
  max-width: 14em;
}
.ifeed {
  padding: 8px 0 clamp(60px, 7vw, 100px);
}
.ifilters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}
.ifilter {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 8px 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  color: var(--muted);
  font: inherit;
  font-size: 14.5px;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.3s, border-color 0.3s, background 0.3s;
}
.ifilter i {
  font-style: normal;
  font-family: var(--ff-tech);
  font-size: 10px;
  min-width: 26px;
  height: 26px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: rgba(82, 49, 138, 0.3);
  color: var(--p-200);
}
.ifilter:hover {
  color: #fff;
  border-color: var(--line-2);
}
.ifilter.is-on {
  color: #fff;
  border-color: rgba(224, 175, 77, 0.55);
  background: rgba(216, 155, 33, 0.08);
}
.ifilter.is-on i {
  background: var(--gold-hi);
  color: var(--gold-ink);
}
.ifilter:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 3px;
}
.ifeed__feat {
  margin-bottom: 44px;
}
.ifeed__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  font-family: var(--ff-tech);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim);
}
.ifeed__head b {
  color: var(--gold-hi);
  font-weight: 600;
}
.ifeed__empty {
  padding: 40px 0;
  color: var(--dim);
}
.acard.is-hidden {
  display: none;
}
.ins-tools {
  padding-top: 0;
  padding-bottom: clamp(60px, 7vw, 100px);
}

/* ---------------------------------------------------------------- article */
.aprog {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 60;
  pointer-events: none;
}
.aprog i {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--p-500), var(--gold-hi));
}
.ahero.hero {
  padding-bottom: 40px;
}
.ahero h1 {
  max-width: 19em;
  font-size: clamp(2.1rem, 3.8vw, 3.7rem);
}
.ahero .hero__sub {
  max-width: 760px;
}
.ahero__by {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--dim);
}
.ahero__by img {
  width: 34px;
  height: 34px;
  padding: 7px;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, 0.03);
}
.ahero__by b {
  color: #fff;
  font-weight: 500;
}
.ahero__img .acard__img {
  aspect-ratio: 21 / 8;
  border-radius: 28px;
  border: 1px solid var(--line);
}
.abody {
  padding: clamp(48px, 6vw, 80px) 0 clamp(60px, 7vw, 100px);
}
.abody__grid {
  display: grid;
  grid-template-columns: 250px minmax(0, 720px) 280px;
  justify-content: space-between;
  gap: 48px;
  align-items: start;
}
.atoc,
.aside {
  position: sticky;
  top: 110px;
}
.atoc__box summary {
  list-style: none;
  font-family: var(--ff-tech);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--p-200);
  margin-bottom: 14px;
  cursor: default;
}
.atoc__box summary::-webkit-details-marker {
  display: none;
}
.atoc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: toc;
}
.atoc > details > ol {
  border-left: 1px solid var(--line);
}
.atoc ol ol {
  margin: 2px 0 6px 12px;
}
.atoc a {
  display: block;
  padding: 7px 0 7px 16px;
  margin-left: -1px;
  border-left: 1px solid transparent;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--dim);
  transition: color 0.3s, border-color 0.3s;
}
.atoc ol ol a {
  font-size: 12.5px;
  padding-top: 5px;
  padding-bottom: 5px;
}
.atoc a:hover {
  color: #fff;
}
.atoc a.is-on {
  color: #fff;
  border-left-color: var(--gold-hi);
}

.aprose {
  font-size: 17.5px;
  line-height: 1.75;
  color: rgba(245, 242, 251, 0.82);
}
.aprose p {
  margin: 0;
}
.aprose.aprose > * + * {
  margin-top: 1.1em;
}
.aprose > p:first-child {
  font-size: 1.22em;
  line-height: 1.55;
  color: #fff;
}
.aprose h2 {
  margin: 2.2em 0 0;
  font-size: clamp(1.45rem, 2vw, 1.85rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: #fff;
  scroll-margin-top: 110px;
}
.aprose h3 {
  margin: 1.8em 0 0;
  font-size: 1.12em;
  font-weight: 500;
  color: #fff;
  scroll-margin-top: 110px;
}
.aprose.aprose h2 + p,
.aprose.aprose h3 + p {
  margin-top: 0.6em;
}
.aprose.aprose > h2 {
  margin-top: 2.2em;
}
.aprose.aprose > h3 {
  margin-top: 1.8em;
}
.aprose strong {
  color: #fff;
  font-weight: 500;
}
.aprose a {
  color: var(--gold-hi);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.aprose ul,
.aprose ol {
  margin: 1.1em 0 0;
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.aprose ul li,
.aprose ol li {
  position: relative;
  padding-left: 26px;
}
.aprose ul li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--p-200);
  box-shadow: 0 0 10px rgba(225, 195, 255, 0.5);
}
.aprose ol {
  counter-reset: li;
}
.aprose ol li::before {
  counter-increment: li;
  content: counter(li, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.35em;
  font-family: var(--ff-tech);
  font-size: 10px;
  color: var(--gold-hi);
}
.aprose blockquote {
  margin: 1.6em 0 0;
  padding: 4px 0 4px 22px;
  border-left: 2px solid var(--gold-hi);
  font-size: 1.15em;
  color: #fff;
}
.atable {
  margin-top: 1.6em !important;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: var(--surface);
  overflow-x: auto;
}
.atable table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  line-height: 1.45;
}
.atable th,
.atable td {
  padding: 14px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}
.atable thead th {
  font-family: var(--ff-tech);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--p-200);
  background: rgba(82, 49, 138, 0.16);
  white-space: nowrap;
}
.atable tbody th {
  font-weight: 500;
  color: #fff;
}
.atable td {
  color: var(--muted);
}
.atable tr:last-child th,
.atable tr:last-child td {
  border-bottom: 0;
}
.atable tr.hl th,
.atable tr.hl td {
  background: rgba(216, 155, 33, 0.08);
  color: #fff;
}
.atable tr.hl th {
  color: var(--gold-hi);
}
.aprose .note {
  font-size: 13px;
  color: var(--dim);
}
.acta {
  margin-top: 2.4em !important;
  padding: 26px 28px;
  border-radius: 22px;
  border: 1px solid rgba(224, 175, 77, 0.35);
  background:
    radial-gradient(100% 140% at 0% 0%, rgba(216, 155, 33, 0.1), transparent 60%),
    var(--surface);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.acta span {
  font-family: var(--ff-tech);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-hi);
}
.acta p {
  margin: 6px 0 0;
  font-size: 18px;
  line-height: 1.35;
  color: #fff;
}
.acta .btn {
  flex: none;
}

.aside {
  display: grid;
  gap: 14px;
}
.aside__stat {
  padding: 26px;
  border-radius: 22px;
  border: 1px solid rgba(225, 195, 255, 0.2);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(117, 90, 161, 0.34), transparent 60%),
    var(--surface);
  display: grid;
  gap: 10px;
}
.aside__stat b {
  font-family: var(--ff-tech);
  font-size: 34px;
  font-weight: 600;
  line-height: 1.05;
  color: var(--gold-hi);
}
.aside__stat p {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--muted);
}
.aside__quote {
  margin: 0;
  padding: 22px 24px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  font-size: 15.5px;
  line-height: 1.55;
  color: #fff;
}
.aside__quote cite {
  display: block;
  margin-top: 12px;
  font-style: normal;
  font-size: 13px;
  color: var(--dim);
}
.aside__tool {
  position: relative;
  padding: 22px 24px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  display: grid;
  gap: 8px;
  color: inherit;
  transition: border-color 0.4s;
}
.aside__tool:hover {
  border-color: rgba(224, 175, 77, 0.45);
}
.aside__tool > * {
  position: relative;
  z-index: 1;
}
.aside__tool b {
  font-size: 16px;
  font-weight: 500;
  color: #fff;
  line-height: 1.3;
}
.aside__tool .link-arrow {
  margin-top: 6px;
  justify-self: start;
  font-size: 14px;
}
.amore {
  padding-top: 0;
}
.ins-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
  margin-bottom: 22px;
}
.ins-head h2 {
  margin: 0;
  font-size: clamp(1.5rem, 2.2vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: #fff;
}

/* ------------------------------------------------------------- responsive */
@media (max-width: 1240px) {
  .abody__grid {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 40px;
  }
  .aside {
    position: static;
    grid-column: 2;
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 1000px) {
  .agrid {
    grid-template-columns: 1fr 1fr;
  }
  .acard--big {
    grid-template-columns: 1fr;
  }
  .acard--big .acard__img {
    aspect-ratio: 16 / 9;
    height: auto;
  }
}
@media (max-width: 900px) {
  .abody__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .atoc {
    position: static;
  }
  .atoc__box {
    padding: 16px 20px;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: var(--surface);
  }
  .atoc__box summary {
    margin: 0;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
  }
  .atoc__box summary::after {
    content: '+';
    font-size: 16px;
    line-height: 1;
  }
  .atoc__box[open] summary {
    margin-bottom: 12px;
  }
  .atoc__box[open] summary::after {
    content: '–';
  }
  .aside {
    grid-column: auto;
    grid-template-columns: 1fr;
  }
  .ahero__img .acard__img {
    aspect-ratio: 16 / 9;
    border-radius: 20px;
  }
}
@media (max-width: 680px) {
  .agrid {
    grid-template-columns: 1fr;
  }
  .ifilters {
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
    margin: 0 calc(var(--gutter) * -1) 22px;
    padding: 2px var(--gutter);
  }
  .ifilters::-webkit-scrollbar {
    display: none;
  }
  .ifilter {
    flex: none;
  }
  .aprose {
    font-size: 16.5px;
  }
  .acta {
    flex-direction: column;
    align-items: flex-start;
  }
  .ins-head {
    flex-direction: column;
    align-items: flex-start;
  }
}