/* ─── Antena · article system ──────────────────────────── */

html {
  scroll-padding-top: 92px;
}

.article-list-head {
  padding: clamp(1.8rem, 3.5vw, 2.6rem) 0 clamp(1.6rem, 3vw, 2.25rem);
  border-bottom: 1px solid var(--rule);
}

.article-list-head__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(260px, 0.72fr);
  max-width: 860px;
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: end;
}

.article-list-head h1 {
  max-width: 11ch;
  margin: 0.45rem 0 0;
  font-size: clamp(2.45rem, 4.35vw, 3.85rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.98;
  font-variation-settings: "opsz" 72;
}

.article-list-head .lead {
  max-width: 34ch;
  margin: 0 0 0.3rem;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.25vw, 1.15rem);
  line-height: 1.5;
}

.article-list {
  padding: clamp(1.8rem, 4vw, 2.8rem) 0 clamp(4rem, 8vw, 7rem);
}

.article-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(1rem, 2vw, 1.35rem);
}

.article-feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(1rem, 3vw, 2.1rem);
  align-items: stretch;
  max-width: 860px;
  min-height: 300px;
  margin: 0 auto;
  padding: clamp(0.8rem, 1.6vw, 1rem);
  border: 1px solid var(--rule);
  border-radius: 18px;
  background: color-mix(in oklab, var(--paper) 72%, transparent);
  box-shadow: 0 22px 56px -50px rgba(15, 13, 10, 0.24);
}

.article-feature__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 430px;
  padding: clamp(0.65rem, 2vw, 1.35rem);
}

.article-kicker {
  color: var(--ink-mute);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.article-kicker {
  color: var(--navy);
  margin-bottom: 0.8rem;
}

.article-feature h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.7rem, 2.55vw, 2.25rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.03;
  font-variation-settings: "opsz" 72;
  text-wrap: balance;
}

.article-feature p {
  max-width: 36ch;
  margin: 0.85rem 0 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.25vw, 1.08rem);
  line-height: 1.5;
}

.article-read-link {
  width: fit-content;
  margin-top: 1.15rem;
  color: var(--navy);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-bottom: 1px solid color-mix(in oklab, var(--navy) 30%, transparent);
}

.article-feature__image {
  overflow: hidden;
  margin: 0;
  border-radius: 14px;
  background: var(--paper);
  justify-self: end;
  align-self: center;
}

.article-feature__image img {
  display: block;
  width: clamp(200px, 22vw, 245px);
  aspect-ratio: 3 / 4;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.article-feature:hover h2 {
  color: var(--navy);
}

.article-feature:hover .article-feature__image img {
  transform: scale(1.025);
}

.article-list-more {
  max-width: 860px;
  margin-top: clamp(2.4rem, 5.5vw, 3.8rem);
  margin-left: auto;
  margin-right: auto;
}

.article-list-more > .eyebrow {
  margin-bottom: 1.1rem;
}

.article-card {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: 14px;
  background: color-mix(in oklab, var(--paper) 70%, transparent);
}

.article-card figure {
  overflow: hidden;
  margin: 0;
  background: var(--paper);
}

.article-card img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.article-card > div {
  display: grid;
  gap: 0.6rem;
  padding: 0.9rem;
}

.article-details dt,
.article-overview span,
.article-overview a {
  color: var(--ink-mute);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.article-card h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.25rem, 1.55vw, 1.55rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.02;
}

.article-card p {
  max-width: 28ch;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.45;
}

.article-card:hover h2 {
  color: var(--navy);
}

.article-card:hover img {
  transform: scale(1.025);
}

.article-hero {
  padding: clamp(1.75rem, 4.5vw, 3.75rem) 0 clamp(2.5rem, 5.5vw, 4.5rem);
}

.article-hero-card {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.76fr);
  overflow: hidden;
  border: 1px solid var(--rule-soft);
  border-radius: 24px;
  background: var(--paper);
  box-shadow: 0 28px 70px -54px rgba(15, 13, 10, 0.28);
}

.article-hero-copy {
  min-height: clamp(420px, 36vw, 530px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.8rem, 5vw, 3.75rem);
}

.article-hero-copy h1 {
  max-width: 12ch;
  margin: 1.1rem 0 1rem;
  font-size: clamp(2.7rem, 5.2vw, 4.95rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 0.94;
  font-variation-settings: "opsz" 72;
  text-wrap: balance;
}

.article-hero-copy .lead {
  max-width: 44ch;
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 1.35vw, 1.22rem);
  line-height: 1.55;
  text-wrap: pretty;
}

.article-details {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.2rem;
  margin: auto 0 0;
  padding-top: clamp(2rem, 4.5vw, 3.4rem);
}

.article-details div {
  min-width: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}

.article-details dt,
.article-details dd {
  margin: 0;
}

.article-details dd {
  margin-top: 0.35rem;
  color: var(--ink);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  line-height: 1.3;
}

.article-hero-image {
  min-height: 100%;
  margin: 0;
  background: var(--ink);
}

.article-hero-image img {
  width: 100%;
  height: 100%;
  min-height: clamp(420px, 36vw, 530px);
  object-fit: cover;
}

.article-body {
  padding: 0 0 clamp(4rem, 8vw, 7rem);
}

.article-reading-grid {
  display: grid;
  grid-template-columns: 230px minmax(0, 760px);
  gap: clamp(2.5rem, 7vw, 6rem);
  align-items: start;
}

.article-overview {
  position: sticky;
  top: 104px;
  padding-top: 0.2rem;
}

.article-overview span {
  display: block;
  margin-bottom: 1.35rem;
  color: var(--ink);
  font-weight: 500;
  letter-spacing: 0.22em;
}

.article-overview nav {
  display: grid;
  gap: 0.85rem;
  position: relative;
  padding-left: 1rem;
  --overview-marker-y: 0px;
  --overview-marker-height: 1.3rem;
}

.article-overview nav::before,
.article-overview nav::after {
  content: "";
  position: absolute;
  left: 0;
  width: 1px;
}

.article-overview nav::before {
  inset-block: 0;
  background: var(--rule);
}

.article-overview nav::after {
  top: 0;
  height: var(--overview-marker-height);
  background: var(--navy);
  transform: translateY(var(--overview-marker-y));
  transition: transform 0.22s ease, height 0.22s ease;
}

.article-overview a {
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  line-height: 1.35;
  text-transform: none;
}

.article-overview a:hover {
  color: var(--navy);
}

.article-overview a.is-active {
  color: var(--navy);
}

.prose {
  max-width: 760px;
}

.prose h2,
.prose h3,
.prose h4 {
  scroll-margin-top: 110px;
  margin: 1.75em 0 0.55em;
  color: var(--ink);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.05;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h2 {
  font-size: clamp(1.95rem, 3.4vw, 3rem);
  font-variation-settings: "opsz" 72;
}

.prose h3 { font-size: clamp(1.35rem, 2.5vw, 1.9rem); }
.prose h4 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

.prose p,
.prose li {
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.35vw, 1.14rem);
  line-height: 1.68;
  text-wrap: pretty;
}

.prose p { margin: 0 0 1.1em; }

.prose a {
  color: var(--navy);
  border-bottom: 1px solid color-mix(in oklab, var(--navy) 28%, transparent);
}

.prose strong { color: var(--ink); font-weight: 500; }
.prose em { color: var(--navy); font-style: italic; }

.prose ul,
.prose ol {
  margin: 0 0 1.4em;
  padding-left: 1.3em;
}

.prose blockquote {
  margin: 1rem 0 1.15rem;
  padding: 0.2rem 0 0.2rem 0.95rem;
  border-left: 2px solid var(--navy);
}

.prose blockquote p {
  color: var(--ink);
  font-size: clamp(1.04rem, 1.45vw, 1.18rem);
  font-style: italic;
  line-height: 1.5;
}

.prose code {
  font-family: var(--mono);
  font-size: 0.88em;
}

.prose pre {
  overflow-x: auto;
  padding: 1rem;
  border: 1px solid var(--rule-soft);
  background: #fff;
}

.article-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding: clamp(1.25rem, 2.5vw, 1.75rem) 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.article-cta p {
  max-width: 44ch;
  margin: 0;
  color: var(--ink);
}

.article-app-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.article-app-badge img {
  display: block;
  width: 168px;
  height: auto;
}

.article-app-badge:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.article-faq {
  grid-column: 2;
  margin-top: clamp(3rem, 6vw, 5rem);
}

.article-faq-box {
  border-top: 1px solid var(--rule);
  padding-top: clamp(1.75rem, 4vw, 2.75rem);
}

.article-faq h2 {
  margin: 1rem 0 clamp(1.2rem, 2.5vw, 1.8rem);
  color: var(--ink);
  font-size: clamp(2.6rem, 5vw, 4.35rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 0.95;
  font-variation-settings: "opsz" 72;
}

.faq-item {
  border-top: 1px solid var(--rule);
}

.faq-item:last-of-type {
  border-bottom: 1px solid var(--rule);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.15rem 0;
  color: var(--ink);
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  line-height: 1.3;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  color: var(--ink-mute);
  font-family: var(--mono);
}

.faq-item[open] summary {
  color: var(--navy);
}

.faq-item[open] summary::after {
  content: "-";
  color: var(--navy);
}

.faq-item .ans {
  max-width: 58ch;
  padding: 0 0 1.25rem;
}

.faq-item .ans p {
  margin: 0 0 0.75rem;
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.5vw, 1.14rem);
  line-height: 1.65;
}

.article-related {
  grid-column: 2;
  margin-top: clamp(2.8rem, 5vw, 4.5rem);
  padding-top: clamp(1.4rem, 3vw, 2rem);
  border-top: 1px solid var(--rule);
}

.article-related__head {
  display: block;
  margin-bottom: clamp(1rem, 2.6vw, 1.45rem);
}

.article-related h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2rem, 3.2vw, 2.85rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.98;
  font-variation-settings: "opsz" 72;
}

.article-related__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: clamp(0.85rem, 2vw, 1.1rem);
}

.article-related__item {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: 14px;
  background: color-mix(in oklab, var(--paper) 76%, white);
  box-shadow: 0 18px 44px -42px rgba(15, 13, 10, 0.2);
  transition: border-color 0.22s ease, box-shadow 0.22s ease, transform 0.22s ease;
}

.article-related__number,
.article-related__description {
  color: var(--ink-mute);
}

.article-related__number {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.article-related__item figure {
  overflow: hidden;
  margin: 0;
  background: var(--paper);
}

.article-related__copy {
  display: grid;
  gap: 0.48rem;
  padding: 0.95rem;
}

.article-related__title {
  color: var(--ink);
  font-size: clamp(1.15rem, 1.75vw, 1.36rem);
  line-height: 1.08;
  letter-spacing: -0.018em;
  transition: color 0.2s ease;
}

.article-related__description {
  font-size: 0.88rem;
  line-height: 1.42;
}

.article-related__item figure img,
.article-related__ghost {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
}

.article-related__item figure img {
  object-fit: cover;
  transition: transform 0.42s ease, filter 0.28s ease;
}

.article-related__ghost {
  border: 1px solid var(--rule);
  background:
    linear-gradient(135deg, transparent 48%, color-mix(in oklab, var(--navy) 14%, transparent) 49%, transparent 51%),
    color-mix(in oklab, var(--paper) 82%, white);
}

.article-related__item:hover {
  border-color: color-mix(in oklab, var(--navy) 22%, var(--rule));
  box-shadow: 0 22px 48px -40px rgba(15, 13, 10, 0.3);
  transform: translateY(-2px);
}

.article-related__item:hover .article-related__title {
  color: var(--navy);
}

.article-related__item:hover figure img {
  filter: saturate(1.04);
  transform: scale(1.025);
}

@media (max-width: 980px) {
  .article-list-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-list-head__inner {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .article-feature {
    grid-template-columns: 1fr;
  }

  .article-feature {
    min-height: 0;
    max-width: 620px;
  }

  .article-feature__copy {
    max-width: 100%;
  }

  .article-feature__image img {
    width: min(100%, 360px);
  }

  .article-hero-card {
    grid-template-columns: 1fr;
    border-radius: 26px;
  }

  .article-hero-copy {
    min-height: auto;
  }

  .article-details {
    grid-template-columns: 1fr;
  }

  .article-hero-image img {
    min-height: 360px;
    max-height: 620px;
  }

  .article-reading-grid {
    grid-template-columns: 1fr;
  }

  .article-overview {
    position: static;
  }

  .article-overview nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-faq {
    grid-column: 1;
  }

  .article-related {
    grid-column: 1;
  }
}

@media (max-width: 760px) {
  .article-list-grid {
    grid-template-columns: 1fr;
  }

  .article-list-head h1 {
    max-width: 10ch;
  }

  .article-list-head {
    padding-top: 2.25rem;
  }

  .article-list-head .lead {
    margin-top: 0.25rem;
  }

  .article-feature {
    padding: 0.8rem;
  }

  .article-feature__image {
    border-radius: 14px;
  }

  .article-feature__image img {
    width: min(100%, 300px);
  }

  .article-hero {
    padding-top: 1.25rem;
  }

  .article-hero-card {
    border-radius: 22px;
  }

  .article-hero-copy {
    padding: 1.6rem;
  }

  .article-hero-copy h1 {
    max-width: 10ch;
    margin-top: 1rem;
  }

  .article-hero-image img {
    min-height: 300px;
  }

  .article-cta {
    grid-template-columns: 1fr;
  }

  .article-overview nav {
    grid-template-columns: 1fr;
  }

  .article-related__head {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.65rem;
  }

  .article-related__item {
    border-radius: 12px;
  }
}