@import url("./inner.css");

.reading-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: calc(var(--ibt-z-sticky) + 2);
  height: 3px;
  transform: scaleX(0);
  transform-origin: right center;
  background: var(--ibt-gradient);
  pointer-events: none;
}

.articles-hero {
  position: relative;
  min-height: 780px;
  padding: calc(var(--ibt-header-h) + 88px) 0 86px;
  display: grid;
  align-items: center;
  isolation: isolate;
}

.articles-hero::before {
  content: "";
  position: absolute;
  inset: 12% 52% auto auto;
  width: 38rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: color-mix(in srgb, var(--ibt-blue) 11%, transparent);
  filter: blur(84px);
  z-index: -1;
}

.articles-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
  gap: 68px;
  align-items: center;
}

.articles-hero h1,
.article-header h1 {
  margin: 16px 0 20px;
  font-family: var(--ibt-font-display);
  font-size: clamp(2.75rem, 6.4vw, 5.4rem);
  line-height: 1.07;
  letter-spacing: -.055em;
  text-wrap: balance;
}

.articles-hero h1 span,
.article-header h1 span {
  color: transparent;
  background: var(--ibt-gradient);
  -webkit-background-clip: text;
  background-clip: text;
}

.articles-hero__lead {
  max-width: 680px;
  margin: 0;
  color: var(--ibt-muted);
  font-size: clamp(1rem, 1.7vw, 1.18rem);
  line-height: 1.95;
}

.articles-hero__actions {
  margin-top: 30px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.editorial-visual {
  position: relative;
  min-height: 500px;
  padding: 30px;
  border: 1px solid var(--ibt-border);
  border-radius: 34px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, .04), transparent 50%),
    color-mix(in srgb, var(--ibt-surface) 88%, transparent);
  box-shadow: var(--ibt-shadow-lg);
  overflow: hidden;
}

.editorial-visual::before,
.editorial-visual::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(18px);
}

.editorial-visual::before {
  width: 210px;
  height: 210px;
  left: -60px;
  top: -30px;
  background: rgba(236, 72, 153, .16);
}

.editorial-visual::after {
  width: 250px;
  height: 250px;
  right: -70px;
  bottom: -80px;
  background: rgba(16, 200, 232, .14);
}

.editorial-visual__paper {
  position: relative;
  z-index: 1;
  height: 100%;
  min-height: 438px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 24px;
  background: rgba(7, 13, 32, .78);
  backdrop-filter: blur(18px);
}

.editorial-visual__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--ibt-muted);
  font-size: 12px;
  letter-spacing: .08em;
}

.editorial-visual__mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 14px;
  color: var(--ibt-cyan);
  background: rgba(255, 255, 255, .04);
  font-weight: 900;
}

.editorial-visual__title {
  max-width: 330px;
  margin: auto 0 24px;
  font-family: var(--ibt-font-display);
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.18;
}

.editorial-visual__title b {
  display: block;
  color: var(--ibt-cyan);
}

.editorial-visual__lines {
  display: grid;
  gap: 10px;
}

.editorial-visual__lines i {
  height: 7px;
  border-radius: 99px;
  background: rgba(255, 255, 255, .1);
}

.editorial-visual__lines i:nth-child(1) { width: 86%; }
.editorial-visual__lines i:nth-child(2) { width: 68%; }
.editorial-visual__lines i:nth-child(3) { width: 42%; background: var(--ibt-gradient); }

.articles-section {
  padding: 92px 0;
}

.articles-section--soft {
  border-block: 1px solid var(--ibt-border);
  background: color-mix(in srgb, var(--ibt-bg-soft) 82%, transparent);
}

.articles-heading {
  margin-bottom: 34px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
}

.articles-heading h2 {
  max-width: 720px;
  margin: 12px 0 0;
  font-family: var(--ibt-font-display);
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.18;
  text-wrap: balance;
}

.articles-heading p {
  max-width: 440px;
  margin: 0;
  color: var(--ibt-muted);
}

.featured-article {
  min-height: 470px;
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  border: 1px solid var(--ibt-border);
  border-radius: 32px;
  background: var(--ibt-surface);
  box-shadow: var(--ibt-shadow-md);
  overflow: hidden;
}

.featured-article__visual,
.article-card__visual {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(circle at 24% 22%, rgba(16, 200, 232, .22), transparent 32%),
    radial-gradient(circle at 76% 76%, rgba(236, 72, 153, .2), transparent 34%),
    #071028;
}

.featured-article__visual::before,
.article-card__visual::before {
  content: "";
  position: absolute;
  inset: 13%;
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 50%;
  transform: rotate(-16deg);
  box-shadow: 0 0 0 34px rgba(255, 255, 255, .025), 0 0 0 72px rgba(255, 255, 255, .018);
}

.featured-article__visual::after,
.article-card__visual::after {
  content: attr(data-label);
  position: absolute;
  right: 28px;
  bottom: 26px;
  z-index: 1;
  color: rgba(255, 255, 255, .72);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .1em;
}

.featured-article__step {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 126px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 36px;
  transform: translate(-50%, -50%) rotate(8deg);
  background: rgba(8, 16, 40, .76);
  color: #fff;
  font-family: var(--ibt-font-display);
  font-size: 3rem;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .32);
}

.featured-article__copy {
  padding: clamp(34px, 5vw, 62px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--ibt-muted);
  font-size: 13px;
}

.article-meta span + span::before {
  content: "•";
  margin-left: 10px;
  color: color-mix(in srgb, var(--ibt-muted) 55%, transparent);
}

.article-topic {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 5px 11px;
  border: 1px solid color-mix(in srgb, var(--ibt-cyan) 25%, var(--ibt-border));
  border-radius: 999px;
  color: var(--ibt-cyan);
  background: color-mix(in srgb, var(--ibt-cyan) 7%, transparent);
  font-size: 12px;
  font-weight: 900;
}

.featured-article h3 {
  margin: 18px 0 13px;
  font-family: var(--ibt-font-display);
  font-size: clamp(2rem, 3.4vw, 3rem);
  line-height: 1.22;
  text-wrap: balance;
}

.featured-article p,
.article-card p {
  color: var(--ibt-muted);
}

.article-link {
  margin-top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ibt-cyan);
  font-weight: 900;
}

.article-link::after {
  content: "←";
  transition: transform var(--ibt-duration) var(--ibt-ease);
}

.article-link:hover::after { transform: translateX(-5px); }

.article-filters {
  margin-bottom: 28px;
  display: flex;
  gap: 9px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.article-filter {
  flex: 0 0 auto;
  min-height: 42px;
  padding: 8px 15px;
  border: 1px solid var(--ibt-border);
  border-radius: 999px;
  background: var(--ibt-surface);
  color: var(--ibt-muted);
  font-weight: 800;
}

.article-filter:hover,
.article-filter[aria-pressed="true"] {
  border-color: color-mix(in srgb, var(--ibt-cyan) 42%, var(--ibt-border));
  color: var(--ibt-text);
  background: color-mix(in srgb, var(--ibt-cyan) 8%, var(--ibt-surface));
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.article-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--ibt-border);
  border-radius: 24px;
  background: var(--ibt-surface);
  overflow: hidden;
  transition: transform var(--ibt-duration) var(--ibt-ease), border-color var(--ibt-duration) var(--ibt-ease);
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--ibt-cyan) 34%, var(--ibt-border));
}

.article-card[hidden] { display: none; }

.article-card__visual {
  min-height: 210px;
}

.article-card--product .article-card__visual {
  background:
    radial-gradient(circle at 26% 24%, rgba(124, 58, 237, .26), transparent 35%),
    radial-gradient(circle at 78% 72%, rgba(16, 200, 232, .18), transparent 36%),
    #081126;
}

.article-card--strategy .article-card__visual {
  background:
    radial-gradient(circle at 28% 72%, rgba(236, 72, 153, .24), transparent 35%),
    radial-gradient(circle at 74% 24%, rgba(124, 58, 237, .23), transparent 34%),
    #081126;
}

.article-card__number {
  position: absolute;
  inset: 50% auto auto 50%;
  z-index: 1;
  transform: translate(-50%, -50%);
  color: rgba(255, 255, 255, .94);
  font-family: var(--ibt-font-display);
  font-size: 3.6rem;
  font-weight: 900;
}

.article-card__body {
  height: 100%;
  padding: 26px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.article-card h3 {
  margin: 15px 0 8px;
  font-size: 1.35rem;
  line-height: 1.45;
  text-wrap: balance;
}

.article-card p { margin: 0; }
.article-card .article-link { margin-top: auto; padding-top: 20px; }

/* Article detail */
.article-page main { overflow: visible; }

.article-hero {
  position: relative;
  padding: calc(var(--ibt-header-h) + 72px) 0 70px;
  border-bottom: 1px solid var(--ibt-border);
  overflow: hidden;
}

.article-hero::before {
  content: "";
  position: absolute;
  width: 42rem;
  aspect-ratio: 1;
  left: -18rem;
  top: -18rem;
  border-radius: 50%;
  background: rgba(16, 200, 232, .09);
  filter: blur(70px);
}

.article-header {
  position: relative;
  max-width: 980px;
  margin-inline: auto;
  text-align: center;
}

.article-header .breadcrumbs { justify-content: center; }

.article-header h1 {
  max-width: 940px;
  margin-inline: auto;
  font-size: clamp(2.45rem, 5.7vw, 4.8rem);
}

.article-deck {
  max-width: 760px;
  margin: 0 auto 24px;
  color: var(--ibt-muted);
  font-size: clamp(1rem, 1.7vw, 1.22rem);
  line-height: 1.95;
}

.article-header .article-meta { justify-content: center; }

.article-cover {
  position: relative;
  max-width: 1120px;
  min-height: 440px;
  margin: 56px auto -160px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ibt-border);
  border-radius: 34px;
  background:
    radial-gradient(circle at 24% 28%, rgba(16, 200, 232, .24), transparent 30%),
    radial-gradient(circle at 76% 70%, rgba(236, 72, 153, .2), transparent 32%),
    #071027;
  box-shadow: var(--ibt-shadow-lg);
  overflow: hidden;
}

.article-cover::before {
  content: "";
  width: min(52vw, 440px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 36%;
  transform: rotate(12deg);
  box-shadow: 0 0 0 42px rgba(255, 255, 255, .025), 0 0 0 86px rgba(255, 255, 255, .016);
}

.article-cover strong {
  position: absolute;
  font-family: var(--ibt-font-display);
  font-size: clamp(3.8rem, 10vw, 8rem);
  color: rgba(255, 255, 255, .92);
  letter-spacing: -.06em;
}

.article-content-section {
  padding: 230px 0 100px;
  background: color-mix(in srgb, var(--ibt-bg-soft) 62%, transparent);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(220px, .34fr) minmax(0, 1fr);
  gap: 72px;
  align-items: start;
}

.article-aside {
  position: sticky;
  top: calc(var(--ibt-header-h) + 28px);
  display: grid;
  gap: 18px;
}

.article-toc,
.article-share {
  padding: 22px;
  border: 1px solid var(--ibt-border);
  border-radius: 20px;
  background: color-mix(in srgb, var(--ibt-surface) 90%, transparent);
}

.article-toc strong,
.article-share strong {
  display: block;
  margin-bottom: 12px;
  font-size: 14px;
}

.article-toc nav { display: grid; gap: 4px; }

.article-toc a {
  padding: 8px 11px;
  border-right: 2px solid transparent;
  color: var(--ibt-muted);
  font-size: 13px;
}

.article-toc a:hover,
.article-toc a[aria-current="true"] {
  border-color: var(--ibt-cyan);
  color: var(--ibt-text);
  background: color-mix(in srgb, var(--ibt-cyan) 6%, transparent);
}

.copy-link {
  width: 100%;
  min-height: 42px;
  padding: 8px 12px;
  border: 1px solid var(--ibt-border);
  border-radius: 12px;
  color: var(--ibt-text);
  background: var(--ibt-bg-soft);
  font-weight: 800;
}

.copy-link[data-copied="true"] { color: var(--ibt-green); }

.article-body {
  width: min(100%, 780px);
  color: color-mix(in srgb, var(--ibt-text) 88%, var(--ibt-muted));
  font-size: 1.08rem;
  line-height: 2.05;
}

.article-body > p:first-of-type {
  color: var(--ibt-text);
  font-size: 1.22rem;
  font-weight: 700;
}

.article-body h2 {
  margin: 64px 0 18px;
  scroll-margin-top: calc(var(--ibt-header-h) + 28px);
  color: var(--ibt-text);
  font-family: var(--ibt-font-display);
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  line-height: 1.35;
  text-wrap: balance;
}

.article-body h3 {
  margin: 36px 0 12px;
  color: var(--ibt-text);
  font-size: 1.35rem;
}

.article-body p { margin: 0 0 22px; }

.article-body ul,
.article-body ol {
  margin: 0 0 28px;
  padding: 0 1.4rem 0 0;
}

.article-body li { margin-bottom: 10px; }
.article-body li::marker { color: var(--ibt-cyan); font-weight: 900; }

.article-callout {
  margin: 34px 0;
  padding: 26px 28px;
  border: 1px solid color-mix(in srgb, var(--ibt-cyan) 28%, var(--ibt-border));
  border-radius: 20px;
  background: color-mix(in srgb, var(--ibt-cyan) 7%, var(--ibt-surface));
}

.article-callout strong {
  display: block;
  margin-bottom: 7px;
  color: var(--ibt-cyan);
}

.article-callout p { margin: 0; }

.article-steps {
  margin: 28px 0 36px;
  display: grid;
  gap: 12px;
  counter-reset: article-step;
}

.article-step {
  position: relative;
  padding: 20px 68px 20px 22px;
  border: 1px solid var(--ibt-border);
  border-radius: 18px;
  background: var(--ibt-surface);
  counter-increment: article-step;
}

.article-step::before {
  content: counter(article-step, decimal-leading-zero);
  position: absolute;
  right: 18px;
  top: 20px;
  color: var(--ibt-cyan);
  font-weight: 900;
}

.article-step h3 { margin: 0 0 5px; font-size: 1.12rem; }
.article-step p { margin: 0; color: var(--ibt-muted); font-size: .96rem; }

.article-table-wrap {
  margin: 30px 0;
  overflow-x: auto;
  border: 1px solid var(--ibt-border);
  border-radius: 18px;
}

.article-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  background: var(--ibt-surface);
  font-size: .94rem;
}

.article-table th,
.article-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--ibt-border);
  text-align: right;
}

.article-table th { color: var(--ibt-text); background: var(--ibt-bg-soft); }
.article-table tr:last-child td { border-bottom: 0; }

.article-end {
  margin-top: 64px;
  padding-top: 28px;
  border-top: 1px solid var(--ibt-border);
}

.article-end p { color: var(--ibt-muted); }

.related-articles { padding: 92px 0; }
.related-articles .articles-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

@media (max-width: 1020px) {
  .articles-hero__grid,
  .featured-article,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .articles-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .editorial-visual { min-height: 420px; }
  .editorial-visual__paper { min-height: 358px; }
  .article-aside { position: static; order: 2; }
  .article-toc { display: none; }
  .article-share { max-width: 300px; }
}

@media (max-width: 760px) {
  .articles-hero { min-height: auto; padding: 120px 0 70px; }
  .articles-hero__grid { gap: 42px; }
  .articles-hero h1 { font-size: clamp(2.65rem, 13vw, 4rem); }
  .editorial-visual { min-height: 340px; padding: 16px; border-radius: 24px; }
  .editorial-visual__paper { min-height: 306px; padding: 22px; }
  .editorial-visual__title { font-size: 2.15rem; }
  .articles-section { padding: 74px 0; }
  .articles-heading { align-items: flex-start; flex-direction: column; }
  .featured-article { min-height: 0; }
  .featured-article__visual { min-height: 300px; }
  .featured-article__copy { padding: 30px 24px 34px; }
  .articles-grid { grid-template-columns: 1fr; }
  .related-articles .articles-grid { grid-template-columns: 1fr; }
  .article-card__visual { min-height: 190px; }
  .article-hero { padding: 112px 0 54px; }
  .article-header { text-align: right; }
  .article-header .breadcrumbs,
  .article-header .article-meta { justify-content: flex-start; }
  .article-header h1 { font-size: clamp(2.25rem, 12vw, 3.45rem); }
  .article-cover { min-height: 300px; margin: 38px 0 -120px; border-radius: 24px; }
  .article-content-section { padding: 176px 0 74px; }
  .article-layout { gap: 46px; }
  .article-body { font-size: 1rem; line-height: 2; }
  .article-body > p:first-of-type { font-size: 1.1rem; }
  .article-body h2 { margin-top: 52px; }
  .article-callout { padding: 22px; }
  .related-articles { padding: 74px 0; }
}

@media (max-width: 420px) {
  .articles-hero__actions .btn { width: 100%; }
  .article-card__body { padding: 22px; }
  .article-step { padding-left: 18px; }
}