:root {
  color-scheme: dark;
  --bg: #09131f;
  --bg-soft: #0f1d2e;
  --surface: rgba(12, 25, 39, 0.88);
  --surface-strong: #102336;
  --text: #edf1ef;
  --text-soft: #b4c0c5;
  --text-dark: #17212d;
  --border: rgba(136, 181, 185, 0.18);
  --teal: #5ba7ab;
  --copper: #c47a3d;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
  --radius-lg: 28px;
  --radius-md: 18px;
  --container: 1180px;
  --reading: 740px;
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  background:
    radial-gradient(
      circle at top left,
      rgba(91, 167, 171, 0.18),
      transparent 28%
    ),
    radial-gradient(
    circle at top right,
    rgba(196, 122, 61, 0.16),
    transparent 26%
  ),
    var(--bg);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 28%),
    linear-gradient(rgba(91, 167, 171, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 167, 171, 0.05) 1px, transparent 1px),
    var(--bg);
  background-size: auto, 48px 48px, 48px 48px, auto;
  color: var(--text);
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

.site-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-main {
  flex: 1;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(20px);
  background: rgba(6, 14, 24, 0.78);
  border-bottom: 1px solid rgba(136, 181, 185, 0.12);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem 0;
}

.brand-link {
  display: inline-flex;
  align-items: center;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
}

.logo-mark--compact {
  gap: 0.75rem;
}

.logo-mark__image-shell {
  border-radius: 22px;
  padding: 0.2rem;
  background:
    linear-gradient(135deg, rgba(91, 167, 171, 0.26), rgba(196, 122, 61, 0.2)),
    rgba(255, 255, 255, 0.02);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.logo-mark__image {
  width: 84px;
  aspect-ratio: 1;
  object-fit: contain;
}

.logo-mark--compact .logo-mark__image {
  width: 52px;
}

.logo-mark__text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.logo-mark__name {
  font-size: clamp(1.15rem, 1rem + 0.8vw, 1.9rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.logo-mark__legal {
  color: var(--text-soft);
  font-size: 0.9rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.75rem;
}

.site-nav__link {
  padding: 0.75rem 1rem;
  border-radius: 999px;
  color: var(--text-soft);
  transition:
    color 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease;
  border: 1px solid transparent;
}

.site-nav__link:hover,
.site-nav__link:focus-visible,
.site-nav__link--active {
  color: var(--text);
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.04);
}

.hero-section {
  padding: 4.5rem 0 4rem;
  position: relative;
  overflow: clip;
}

.hero-section::after {
  content: "";
  position: absolute;
  inset: auto -10% -10% 35%;
  height: 380px;
  background: radial-gradient(
    circle,
    rgba(91, 167, 171, 0.16),
    transparent 65%
  );
  pointer-events: none;
}

.hero-section__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 2rem;
  align-items: center;
}

.hero-copy h1,
.page-hero h1,
.article-hero h1 {
  margin: 0;
  font-size: clamp(3rem, 8vw, 5.7rem);
  line-height: 0.96;
  letter-spacing: -0.045em;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 700;
}

.hero-copy__tagline {
  margin: 1.15rem 0 0;
  font-size: clamp(1.2rem, 1rem + 1vw, 1.7rem);
  color: #d7e6e6;
  max-width: 36rem;
}

.hero-copy__body,
.page-hero__body,
.section-heading p,
.content-card p,
.signal-card p,
.sidebar-card p {
  color: var(--text-soft);
  line-height: 1.75;
  font-size: 1.02rem;
}

.hero-copy__body {
  max-width: 39rem;
  margin: 1.5rem 0 0;
}

.hero-copy__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 2rem 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.9rem 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button--primary {
  background: linear-gradient(135deg, var(--teal), #24626d);
  color: white;
  box-shadow: 0 20px 40px rgba(10, 47, 57, 0.28);
}

.button--secondary {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
}

.hero-copy__signals {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.7rem;
}

.hero-copy__signals li {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: #dce5e8;
}

.hero-copy__signals li::before {
  content: "";
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--copper));
  box-shadow: 0 0 0 6px rgba(91, 167, 171, 0.12);
}

.hero-panel__card,
.content-card,
.signal-card,
.article-card,
.sidebar-card,
.article-sheet {
  border: 1px solid var(--border);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.04),
    rgba(255, 255, 255, 0.02)
  );
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero-panel__card {
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.hero-panel__card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      circle at top right,
      rgba(196, 122, 61, 0.14),
      transparent 28%
    ),
    radial-gradient(
    circle at bottom left,
    rgba(91, 167, 171, 0.16),
    transparent 32%
  );
  pointer-events: none;
}

.hero-panel__divider {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(136, 181, 185, 0.4),
    transparent
  );
  margin: 1.5rem 0;
}

.hero-panel__label,
.signal-card__kicker,
.site-footer__tagline,
.article-rail__label {
  color: var(--copper);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
  font-weight: 700;
}

.hero-panel__text {
  margin: 0;
  max-width: 28rem;
  line-height: 1.8;
  color: #dbe4e6;
  position: relative;
}

.section {
  padding: 4rem 0;
}

.section--soft {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.035),
    rgba(255, 255, 255, 0)
  );
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.section-heading {
  max-width: 44rem;
  margin-bottom: 1.8rem;
}

.section-heading--row {
  max-width: none;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
}

.section-heading h2,
.content-card h2,
.sidebar-card h2 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.7rem, 2vw, 2.35rem);
  line-height: 1.1;
}

.signal-grid,
.article-grid,
.narrow-grid {
  display: grid;
  gap: 1.25rem;
}

.signal-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.signal-card,
.content-card,
.article-card,
.sidebar-card {
  padding: 1.5rem;
}

.signal-card h3,
.article-card__title {
  margin: 0.45rem 0 0.8rem;
  font-size: 1.35rem;
  line-height: 1.2;
}

.signal-card__kicker {
  margin: 0;
}

.profile-preview {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
}

.inline-link,
.article-hero__back {
  color: #e7f3f4;
  text-decoration: underline;
  text-decoration-color: rgba(91, 167, 171, 0.55);
  text-underline-offset: 0.24rem;
}

.page-hero,
.article-hero {
  padding: 4rem 0 2rem;
}

.page-hero__body,
.article-hero__summary {
  max-width: 48rem;
  margin: 1.4rem 0 0;
}

.prose-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.content-card--wide {
  grid-column: span 2;
}

.stack-list {
  display: grid;
  gap: 0.9rem;
}

.stack-list p {
  margin: 0;
}

.content-list,
.theme-grid {
  list-style: none;
  margin: 0;
  padding: 0;
}

.content-list {
  display: grid;
  gap: 1rem;
}

.content-list li {
  display: grid;
  gap: 0.3rem;
}

.content-list span {
  color: var(--text-soft);
  line-height: 1.7;
}

.theme-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.95rem;
}

.theme-grid li {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(136, 181, 185, 0.14);
  line-height: 1.6;
}

.articles-layout,
.article-layout {
  display: grid;
  gap: 1.5rem;
}

.articles-layout {
  grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
}

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

.articles-sidebar,
.article-rail {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.filter-list,
.article-card__tags,
.article-hero__tags,
.article-rail__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.filter-chip,
.tag-chip {
  border-radius: 999px;
  border: 1px solid rgba(136, 181, 185, 0.2);
  padding: 0.55rem 0.9rem;
}

.filter-chip {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
}

.filter-chip--active,
.filter-chip:hover,
.filter-chip:focus-visible {
  border-color: rgba(91, 167, 171, 0.45);
  background: rgba(91, 167, 171, 0.14);
}

.tag-chip {
  color: #d3dfdf;
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.86rem;
}

.article-card__meta,
.article-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.article-card__summary {
  color: var(--text-soft);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.article-hero__inner {
  max-width: 64rem;
}

.article-hero__back {
  display: inline-block;
  margin-bottom: 1rem;
}

.article-layout {
  grid-template-columns: minmax(220px, 260px) minmax(0, var(--reading));
  justify-content: center;
}

.article-sheet {
  padding: clamp(1.5rem, 4vw, 3rem);
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.98),
      rgba(245, 239, 232, 0.98)
    ),
    #f4efe8;
  color: var(--text-dark);
}

.article-body {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
}

.article-body__paragraph,
.article-body__list,
.article-body__quote p,
.article-body__callout p {
  font-size: 1.1rem;
  line-height: 1.9;
}

.article-body__paragraph,
.article-body__list,
.article-body__quote,
.article-body__callout,
.article-body__code {
  margin: 0 0 1.4rem;
}

.article-body__heading,
.article-body__subheading {
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #111c27;
}

.article-body__heading {
  margin: 2.4rem 0 1rem;
  font-size: clamp(1.75rem, 3vw, 2.35rem);
}

.article-body__subheading {
  margin: 1.9rem 0 0.9rem;
  font-size: 1.4rem;
}

.article-body code {
  font-family:
    "SFMono-Regular",
    "SF Mono",
    "JetBrains Mono",
    "Menlo",
    monospace;
  font-size: 0.92em;
}

.article-body__paragraph code,
.article-body__list code,
.article-body__quote code,
.article-body__callout code {
  background: rgba(17, 28, 39, 0.08);
  padding: 0.12rem 0.35rem;
  border-radius: 0.4rem;
}

.article-body__list {
  padding-left: 1.35rem;
}

.article-body__quote {
  border-left: 3px solid rgba(91, 167, 171, 0.5);
  padding: 0.25rem 0 0.25rem 1.25rem;
  color: #344252;
}

.article-body__callout {
  padding: 1.15rem 1.2rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(17, 28, 39, 0.1);
}

.article-body__callout strong {
  display: block;
  margin-bottom: 0.45rem;
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
}

.article-body__callout--note {
  background: rgba(91, 167, 171, 0.08);
}

.article-body__callout--accent {
  background: rgba(196, 122, 61, 0.1);
}

.article-body__code {
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid rgba(17, 28, 39, 0.08);
  background: #0a1521;
  color: #ebf0ed;
}

.article-body__code figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  color: #b8c5ca;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.article-body__code pre {
  margin: 0;
  padding: 1.1rem 1.2rem 1.3rem;
  overflow-x: auto;
}

.article-body__code code {
  display: block;
  line-height: 1.7;
  font-size: 0.95rem;
}

.narrow-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.site-footer {
  border-top: 1px solid rgba(136, 181, 185, 0.12);
  background: rgba(7, 14, 23, 0.72);
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.5rem 0 2rem;
}

.site-footer__name {
  margin: 0 0 0.35rem;
  font-weight: 700;
}

.site-footer__tagline,
.site-footer__note {
  margin: 0;
}

.site-footer__note {
  color: var(--text-soft);
  max-width: 30rem;
  line-height: 1.7;
}

@media (max-width: 1080px) {
  .signal-grid,
  .narrow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .articles-layout,
  .article-layout,
  .hero-section__grid {
    grid-template-columns: 1fr;
  }

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

  .article-rail {
    order: 2;
  }

  .article-sheet {
    order: 1;
  }
}

@media (max-width: 800px) {
  .site-header__inner,
  .profile-preview,
  .section-heading--row,
  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .prose-grid,
  .theme-grid,
  .signal-grid,
  .narrow-grid {
    grid-template-columns: 1fr;
  }

  .content-card--wide {
    grid-column: span 1;
  }

  .hero-section {
    padding-top: 3.5rem;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(calc(100% - 1.2rem), var(--container));
  }

  .hero-copy h1,
  .page-hero h1,
  .article-hero h1 {
    font-size: clamp(2.45rem, 12vw, 3.4rem);
  }

  .hero-panel__card,
  .content-card,
  .signal-card,
  .article-card,
  .sidebar-card,
  .article-sheet {
    border-radius: 22px;
  }

  .site-nav {
    width: 100%;
  }

  .site-nav__link {
    padding-inline: 0.9rem;
  }
}