/* Eudai · reader styles — case studies (eu-cs-*) and articles (eu-art-*) */

.eu-reader {
  background: #fff;
}

.eu-reader-back {
  display: inline-flex; align-items: center; gap: 6px;
  font: 600 13px/1 var(--font-mono);
  letter-spacing: 0.02em;
  color: var(--fg-3);
  text-decoration: none;
  transition: color 140ms;
}
.eu-reader-back:hover { color: var(--accent); }

/* ============ Case study ============ */
.eu-cs-hero {
  max-width: 1180px; margin: 0 auto;
  padding: 56px 40px 0;
}
.eu-cs-hero-grid {
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px;
  align-items: stretch;
  margin-top: 40px;
}
.eu-cs-hero-l { display: flex; flex-direction: column; }
.eu-cs-tag {
  align-self: flex-start;
  font: 600 12px/1 var(--font-sans);
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 7px 13px; border-radius: 999px;
  border: 1px solid; background: #fff;
}
.eu-cs-title {
  font: 800 clamp(48px, 6vw, 76px)/0.98 var(--font-display);
  letter-spacing: -0.03em;
  color: var(--fg-1);
  margin: 22px 0 0;
}
.eu-cs-dek {
  font: 500 21px/1.5 var(--font-display);
  letter-spacing: -0.01em;
  color: var(--fg-2);
  margin: 22px 0 0;
  max-width: 33ch;
  text-wrap: pretty;
}
.eu-cs-facts {
  display: flex; flex-wrap: wrap; gap: 36px;
  margin-top: auto;
  padding-top: 40px;
}
.eu-cs-fact { display: flex; flex-direction: column; gap: 6px; }
.eu-cs-fact-lbl {
  font: 700 10px/1 var(--font-mono);
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg-4);
}
.eu-cs-fact-val {
  font: 700 15px/1.2 var(--font-sans);
  color: var(--fg-1);
}
.eu-cs-hero-r {
  border-radius: 22px;
  min-height: 320px;
  display: flex; align-items: center; justify-content: center;
  padding: 40px;
  position: relative; overflow: hidden;
}
.eu-cs-hero-r::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(70% 90% at 30% 18%, rgba(255,255,255,0.22), transparent 60%);
}
.eu-cs-hero-logo {
  position: relative; z-index: 1;
  max-width: 78%; max-height: 96px; width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

/* Metrics */
.eu-cs-metrics {
  max-width: 1180px; margin: 0 auto;
  padding: 64px 40px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  border-bottom: 1px solid var(--border-subtle);
}
.eu-cs-metric { display: flex; flex-direction: column; gap: 8px; }
.eu-cs-metric-val {
  font: 800 clamp(40px, 5vw, 60px)/0.95 var(--font-display);
  letter-spacing: -0.03em;
}
.eu-cs-metric-lbl {
  font: 500 15px/1.4 var(--font-sans);
  color: var(--fg-3);
  max-width: 26ch;
}

/* Body */
.eu-cs-body {
  max-width: 1180px; margin: 0 auto;
  padding: 72px 40px 40px;
  display: grid; grid-template-columns: 240px 1fr; gap: 64px;
  align-items: start;
}
.eu-cs-rail { position: sticky; top: 32px; }
.eu-cs-rail-lbl {
  display: block;
  font: 700 10px/1 var(--font-mono);
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg-4);
  margin-bottom: 16px;
}
.eu-cs-rail-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; }
.eu-cs-rail-list li {
  display: flex; align-items: center; gap: 10px;
  font: 600 14px/1.3 var(--font-sans);
  color: var(--fg-2);
}
.eu-cs-rail-dot { width: 6px; height: 6px; border-radius: 999px; flex: none; }

.eu-cs-prose { max-width: 680px; }
.eu-cs-section { margin-bottom: 44px; }
.eu-cs-h2 {
  font: 700 13px/1 var(--font-mono);
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 18px;
}
.eu-cs-p {
  font: 400 19px/1.62 var(--font-sans);
  color: var(--fg-2);
  margin: 0 0 18px;
  text-wrap: pretty;
}
.eu-cs-p:last-child { margin-bottom: 0; }

.eu-cs-quote {
  margin: 8px 0 0;
  padding: 4px 0 4px 28px;
  border-left: 3px solid;
}
.eu-cs-quote-mark { font: 800 44px/0.6 var(--font-display); display: block; }
.eu-cs-quote-text {
  font: 600 26px/1.4 var(--font-display);
  letter-spacing: -0.02em;
  color: var(--fg-1);
  margin: 8px 0 16px;
  text-wrap: pretty;
}
.eu-cs-quote-attr {
  font: 500 14px/1.4 var(--font-sans);
  color: var(--fg-3);
}
.eu-cs-quote-attr strong { color: var(--fg-1); font-weight: 700; }

/* Next */
.eu-cs-next {
  display: block;
  max-width: 1180px; margin: 0 auto 64px;
  padding: 40px;
  border-top: 1px solid var(--border-subtle);
  text-decoration: none;
  transition: background 160ms;
}
.eu-cs-next:hover { background: var(--eudai-mist); }
.eu-cs-next-lbl {
  display: block;
  font: 700 10px/1 var(--font-mono);
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg-4);
  margin-bottom: 12px;
}
.eu-cs-next-client {
  display: block;
  font: 800 clamp(30px, 4vw, 46px)/1.05 var(--font-display);
  letter-spacing: -0.025em;
  color: var(--fg-1);
}
.eu-cs-next-arrow { color: var(--accent); transition: margin 160ms; display: inline-block; }
.eu-cs-next:hover .eu-cs-next-arrow { margin-left: 8px; }
.eu-cs-next-tag {
  display: block;
  font: 500 14px/1.4 var(--font-sans);
  color: var(--fg-3);
  margin-top: 8px;
}

/* ============ Article ============ */
.eu-art {
  max-width: 720px; margin: 0 auto;
  padding: 56px 40px 0;
}
.eu-art-head { margin-top: 36px; }
.eu-art-meta {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 20px;
}
.eu-art-meta .eu-post-cat {
  font: 700 12px/1 var(--font-sans);
  letter-spacing: 0.06em; text-transform: uppercase;
}
.eu-art-meta .eu-post-read {
  font: 500 13px/1 var(--font-mono);
  color: var(--fg-4);
  white-space: nowrap;
}
.eu-art-title {
  font: 800 clamp(38px, 5.2vw, 60px)/1.03 var(--font-display);
  letter-spacing: -0.03em;
  color: var(--fg-1);
  margin: 0;
  text-wrap: balance;
}
.eu-art-dek {
  font: 500 22px/1.5 var(--font-display);
  letter-spacing: -0.01em;
  color: var(--fg-2);
  margin: 22px 0 0;
  text-wrap: pretty;
}
.eu-art-byline {
  display: flex; align-items: center; gap: 12px;
  margin-top: 32px;
}
.eu-art-byline-av {
  width: 44px; height: 44px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--eudai-navy); color: #fff;
  font: 700 14px/1 var(--font-sans);
}
.eu-art-byline-name { font: 700 15px/1.2 var(--font-sans); color: var(--fg-1); }
.eu-art-byline-role { font: 500 13px/1.3 var(--font-sans); color: var(--fg-3); margin-top: 3px; }

.eu-art-rule {
  max-width: 720px; margin: 40px auto 0;
  height: 3px; border-radius: 2px;
}

.eu-art-body {
  max-width: 720px; margin: 0 auto;
  padding: 40px 40px 8px;
}
.eu-art-p {
  font: 400 20px/1.68 var(--font-sans);
  color: var(--fg-2);
  margin: 0 0 26px;
  text-wrap: pretty;
}
.eu-art-h2 {
  font: 700 27px/1.25 var(--font-display);
  letter-spacing: -0.02em;
  color: var(--fg-1);
  margin: 44px 0 18px;
}
.eu-art-quote {
  margin: 36px 0;
  padding: 6px 0 6px 28px;
  border-left: 4px solid;
}
.eu-art-quote p {
  font: 600 26px/1.42 var(--font-display);
  letter-spacing: -0.02em;
  color: var(--fg-1);
  margin: 0;
  text-wrap: pretty;
}
.eu-art-list { list-style: none; margin: 8px 0 30px; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.eu-art-list li {
  display: flex; gap: 14px;
  font: 400 19px/1.55 var(--font-sans);
  color: var(--fg-2);
}
.eu-art-list-dot {
  width: 8px; height: 8px; border-radius: 999px;
  flex: none; margin-top: 10px;
}

/* Author CTA */
.eu-art-author {
  max-width: 720px; margin: 24px auto 0;
  padding: 0 40px;
}
.eu-art-author-inner {
  background: var(--eudai-mist);
  border-radius: 20px;
  padding: 40px;
  display: flex; flex-direction: column; align-items: flex-start; gap: 22px;
}
.eu-art-author-lede {
  font: 600 23px/1.4 var(--font-display);
  letter-spacing: -0.02em;
  color: var(--fg-1);
  margin: 0;
  max-width: 30ch;
  text-wrap: pretty;
}
.eu-art .eu-reader-back,
.eu-art-author + .eu-cs-next { max-width: 720px; }

.eu-reader .eu-art ~ .eu-cs-next,
.eu-reader .eu-art-author ~ .eu-cs-next {
  max-width: 720px;
  margin-top: 48px;
}

/* Missing */
.eu-reader-missing {
  max-width: 720px; margin: 0 auto;
  padding: 120px 40px;
  text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 20px;
}
.eu-reader-missing-title {
  font: 800 44px/1.05 var(--font-display);
  letter-spacing: -0.03em;
  color: var(--fg-1);
  margin: 0 0 12px;
}

@media (max-width: 900px) {
  .eu-cs-hero-grid { grid-template-columns: 1fr; }
  .eu-cs-hero-r { min-height: 220px; order: -1; }
  .eu-cs-metrics { grid-template-columns: 1fr; gap: 32px; }
  .eu-cs-body { grid-template-columns: 1fr; gap: 36px; }
  .eu-cs-rail { position: static; }
}

/* ============ Case study — image-led layout (v2 overrides) ============ */
.eu-cs-top { max-width: 1080px; margin: 0 auto; padding: 48px 40px 0; }
.eu-cs .eu-cs-title {
  font: 800 clamp(44px, 6vw, 72px)/0.98 var(--font-display);
  letter-spacing: -0.03em; color: var(--fg-1); margin: 22px 0 0;
}
.eu-cs-tagline {
  font: 600 13px/1 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent); margin: 14px 0 0;
}

.eu-cs-hero-wrap { max-width: 1080px; margin: 36px auto 0; padding: 0 40px; }

.eu-cs-fig { margin: 0; }
.eu-cs-fig img {
  width: 100%; height: auto; display: block;
  border-radius: 18px; border: 1px solid var(--border-subtle);
}
.eu-cs-fig figcaption {
  font: 500 13px/1.4 var(--font-sans); color: var(--fg-3); margin-top: 12px;
}
.eu-cs-fig-link { display: block; cursor: pointer; }
.eu-cs-fig-link img { transition: transform 240ms var(--ease-out, ease), box-shadow 240ms ease, border-color 240ms ease; }
.eu-cs-fig-link:hover img { transform: translateY(-3px); box-shadow: 0 18px 40px rgba(31,43,72,0.16); border-color: var(--accent); }
.eu-cs-ph {
  aspect-ratio: 16 / 9; border: 1.5px dashed var(--border-base); border-radius: 18px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  color: var(--fg-4); background: color-mix(in srgb, var(--accent) 5%, var(--bg-page));
  font: 600 12px/1.3 var(--font-mono); letter-spacing: 0.04em; text-align: center; padding: 20px;
}

.eu-cs-intro {
  max-width: 1080px; margin: 56px auto 0; padding: 0 40px;
  display: grid; grid-template-columns: 1fr 320px; gap: 56px; align-items: start;
}
.eu-cs-intro-l { min-width: 0; }
.eu-cs .eu-cs-h2 {
  font: 700 13px/1 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 16px;
}
.eu-cs .eu-cs-dek {
  font: 500 24px/1.45 var(--font-display); letter-spacing: -0.015em;
  color: var(--fg-1); margin: 0; text-wrap: pretty;
}
.eu-cs .eu-cs-metrics {
  display: flex; flex-wrap: wrap; gap: 24px 40px; margin: 28px 0 0;
  padding: 0; border: 0;
}
.eu-cs .eu-cs-metric { display: flex; flex-direction: column; gap: 4px; }
.eu-cs .eu-cs-metric-val { font: 800 30px/1 var(--font-display); letter-spacing: -0.02em; }
.eu-cs .eu-cs-metric-lbl { font: 500 13px/1.4 var(--font-sans); color: var(--fg-3); max-width: 24ch; }

.eu-cs-spec {
  background: var(--bg-page); border: 1px solid var(--border-subtle);
  border-radius: 18px; padding: 8px; position: sticky; top: 24px;
}
.eu-cs-spec-logo {
  border-radius: 12px; padding: 28px; display: flex; align-items: center; justify-content: center; min-height: 120px;
}
.eu-cs-spec-logo img { max-width: 80%; max-height: 60px; width: auto; object-fit: contain; filter: brightness(0) invert(1); }
.eu-cs-spec-wordmark { color: #fff; font: 800 24px/1.1 var(--font-display); letter-spacing: -0.02em; text-align: center; }
.eu-cs-spec-list { margin: 0; padding: 16px 16px 6px; }
.eu-cs-spec-list > div { display: flex; flex-direction: column; gap: 3px; padding: 11px 0; border-top: 1px solid var(--border-subtle); }
.eu-cs-spec-list > div:first-child { border-top: 0; }
.eu-cs-spec-list dt { font: 700 10px/1 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-4); }
.eu-cs-spec-list dd { margin: 0; font: 600 14px/1.45 var(--font-sans); color: var(--fg-1); }

.eu-cs .eu-cs-body { display: block; max-width: 1080px; margin: 0 auto; padding: 56px 40px 8px; }
.eu-cs-section { max-width: 720px; }
.eu-cs-shead {
  font: 700 13px/1 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); margin: 40px 0 16px;
}
.eu-cs .eu-cs-body .eu-cs-fig.is-wide { margin: 36px 0 44px; }
.eu-cs-gallery { display: flex; flex-direction: column; gap: 36px; margin-top: 8px; }
.eu-cs-pair-wrap { margin: 36px 0 44px; }
.eu-cs-pair-lead {
  font: 700 13px/1.4 var(--font-mono); letter-spacing: 0.04em;
  color: var(--fg-3); margin: 0 0 18px; max-width: 720px;
}
.eu-cs-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: start; }
.eu-cs-pair .eu-cs-fig img { aspect-ratio: 16 / 7; object-fit: cover; object-position: left top; }
@media (max-width: 720px) {
  .eu-cs-pair { grid-template-columns: 1fr; gap: 28px; }
  .eu-cs-pair .eu-cs-fig img { aspect-ratio: auto; }
}
.eu-cs-video {
  position: relative; width: 100%; aspect-ratio: 16 / 9;
  margin: 36px 0 8px; border-radius: 18px; overflow: hidden;
  border: 1px solid var(--border-subtle); background: #0b1020;
}
.eu-cs-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.eu-cs .eu-cs-quote { margin: 32px 0; max-width: 760px; }

@media (max-width: 760px) {
  .eu-cs-top { padding: 36px 20px 0; }
  .eu-cs-hero-wrap { padding: 0 20px; margin-top: 28px; }
  .eu-cs-intro { grid-template-columns: 1fr; gap: 32px; padding: 0 20px; margin-top: 40px; }
  .eu-cs-spec { position: static; }
  .eu-cs .eu-cs-body { padding: 44px 20px 8px; }
  .eu-cs .eu-cs-dek { font-size: 21px; }
}