:root {
  --bg: #07111b;
  --panel: #0d1a28;
  --panel-soft: #122235;
  --line: rgba(143, 176, 204, 0.22);
  --text: #edf4fb;
  --muted: #9fb5ca;
  --accent: #7fffd4;
  --warm: #f5b700;
  --shadow: 0 24px 50px rgba(0, 0, 0, 0.28);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(127, 255, 212, 0.12), transparent 26%),
    radial-gradient(circle at 80% 10%, rgba(245, 183, 0, 0.14), transparent 20%),
    linear-gradient(180deg, #07111b 0%, #0b1624 45%, #09111b 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.site-shell {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(7, 17, 27, 0.84);
  border-bottom: 1px solid var(--line);
}

.site-header__inner,
.site-footer__inner {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-lockup img {
  width: 180px;
}

.brand-copy strong {
  display: block;
  font-size: 1.05rem;
}

.brand-copy span {
  color: var(--muted);
  font-size: 0.92rem;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.main-nav a,
.mini-tab {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  transition: 180ms ease;
}

.main-nav a:hover,
.mini-tab:hover,
.mini-tab.is-active {
  color: var(--text);
  border-color: rgba(127, 255, 212, 0.45);
  background: rgba(127, 255, 212, 0.08);
}

.hero {
  padding: 48px 0 24px;
}

.hero__wrap,
.section-hero,
.article-shell,
.strip,
.feed-grid,
.section-grid,
.related-grid,
.illustration-grid,
.illustration-detail {
  display: grid;
  gap: 24px;
}

.hero__wrap {
  grid-template-columns: 1.1fr 0.9fr;
  align-items: stretch;
}

.hero-panel,
.signal-panel,
.feature-card,
.section-card,
.news-card,
.article-card,
.related-card,
.note-panel,
.illustration-card,
.illustration-detail__copy,
.illustration-frame {
  background: linear-gradient(180deg, rgba(18, 34, 53, 0.94), rgba(11, 22, 36, 0.94));
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 34px;
  overflow: hidden;
  position: relative;
}

.hero-panel::after {
  content: "";
  position: absolute;
  inset: auto -10% -25% auto;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(127, 255, 212, 0.18), transparent 68%);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-size: 0.76rem;
}

.hero h1,
.section-hero h1,
.article-card h1 {
  margin: 12px 0 14px;
  font-size: clamp(2.4rem, 4vw, 4.8rem);
  line-height: 0.95;
}

.hero-panel p,
.section-hero p,
.article-card p,
.news-card p,
.feature-card p,
.related-card p,
.note-panel p {
  color: var(--muted);
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.hero-stats .stat {
  min-width: 140px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(8, 17, 29, 0.55);
  border: 1px solid var(--line);
}

.stat strong {
  display: block;
  font-size: 1.4rem;
}

.signal-panel {
  padding: 26px;
}

.signal-panel ul {
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.strip {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 28px 0 18px;
}

.feature-card,
.section-card,
.news-card,
.article-card,
.related-card,
.note-panel,
.illustration-card,
.illustration-detail__copy,
.illustration-frame {
  padding: 24px;
}

.feature-card h2,
.section-card h3,
.news-card h3,
.related-card h3,
.note-panel h2 {
  margin: 10px 0 12px;
  line-height: 1.2;
}

.feature-card__footer,
.news-card__footer,
.article-meta,
.news-card__meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.92rem;
}

.feature-card__footer a,
.news-card__footer a,
.article-meta a,
.breadcrumbs a {
  color: var(--accent);
}

.section-grid,
.feed-grid,
.related-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 36px;
}

.illustration-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 36px;
}

.illustration-card {
  display: grid;
  gap: 18px;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.illustration-card:hover {
  transform: translateY(-4px);
  border-color: rgba(127, 255, 212, 0.45);
  box-shadow: 0 28px 54px rgba(0, 0, 0, 0.34);
}

.illustration-card img,
.illustration-frame img {
  width: 100%;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(8, 17, 29, 0.7);
}

.illustration-card__body h3 {
  margin: 10px 0 12px;
  line-height: 1.2;
}

.illustration-card__body p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.section-card strong,
.pill {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(245, 183, 0, 0.12);
  color: #ffd978;
  border: 1px solid rgba(245, 183, 0, 0.25);
}

.news-card__meta {
  align-items: center;
}

.section-hero,
.article-shell {
  padding: 44px 0 24px;
}

.section-hero__panel,
.article-card {
  padding: 30px;
}

.section-hero__panel {
  background: linear-gradient(135deg, rgba(18, 34, 53, 0.98), rgba(8, 17, 29, 0.94));
  border-radius: 28px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.mini-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.article-shell {
  grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.9fr);
}

.illustration-detail {
  grid-template-columns: minmax(320px, 0.88fr) minmax(0, 1.12fr);
  padding: 44px 0 24px;
  align-items: start;
}

.illustration-detail__copy {
  padding: 30px;
}

.illustration-detail__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 20px;
}

.illustration-frame {
  padding: 18px;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.article-card blockquote {
  margin: 26px 0;
  padding: 20px 24px;
  border-left: 4px solid var(--warm);
  border-radius: 0 18px 18px 0;
  background: rgba(8, 17, 29, 0.72);
}

.article-card .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid rgba(127, 255, 212, 0.35);
  background: rgba(127, 255, 212, 0.08);
  color: var(--text);
}

.button--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--muted);
}

.site-footer {
  margin-top: 24px;
  border-top: 1px solid var(--line);
  background: rgba(6, 12, 19, 0.92);
}

.site-footer__inner {
  padding: 22px 0 40px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .hero__wrap,
  .strip,
  .feed-grid,
  .section-grid,
  .article-shell,
  .related-grid,
  .illustration-grid,
  .illustration-detail {
    grid-template-columns: 1fr;
  }

  .site-header__inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .brand-lockup img {
    width: 160px;
  }
}

@media (max-width: 640px) {
  .hero-panel,
  .signal-panel,
  .feature-card,
  .section-card,
  .news-card,
  .article-card,
  .related-card,
  .note-panel,
  .section-hero__panel,
  .illustration-card,
  .illustration-detail__copy,
  .illustration-frame {
    border-radius: 22px;
    padding: 20px;
  }

  .hero {
    padding-top: 26px;
  }
}