:root {
  --bg-top: #071a26;
  --bg-bottom: #efe5d4;
  --surface: rgba(248, 243, 234, 0.9);
  --surface-strong: #fffaf2;
  --surface-dark: rgba(8, 23, 35, 0.86);
  --ink: #102434;
  --muted: #526474;
  --line: rgba(16, 36, 52, 0.12);
  --line-strong: rgba(112, 161, 195, 0.35);
  --accent: #0c7f95;
  --accent-strong: #0a5d70;
  --warm: #b7653c;
  --shadow: 0 24px 70px rgba(7, 26, 38, 0.16);
  --shadow-soft: 0 18px 40px rgba(7, 26, 38, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(21, 137, 160, 0.18), transparent 28%),
    radial-gradient(circle at 85% 10%, rgba(183, 101, 60, 0.22), transparent 24%),
    linear-gradient(180deg, var(--bg-top) 0%, #173247 22%, #d7c8b3 72%, var(--bg-bottom) 100%);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.65;
}

a {
  color: inherit;
}

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

.page-shell {
  width: min(1180px, calc(100vw - 2rem));
  margin: 0 auto;
  padding: 1rem 0 3rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: 0.75rem;
  padding: 0.9rem 1.2rem;
  border: 1px solid rgba(145, 190, 219, 0.22);
  border-radius: 999px;
  background: rgba(6, 21, 31, 0.78);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 30px rgba(4, 15, 23, 0.25);
}

.site-mark {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-decoration: none;
  color: #f8f2e9;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.site-nav a {
  padding: 0.45rem 0.8rem;
  border: 1px solid rgba(164, 204, 229, 0.16);
  border-radius: 999px;
  color: #d4e4ed;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.04);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.overview-card:hover,
.overview-card:focus-visible {
  transform: translateY(-2px);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  border-color: rgba(164, 204, 229, 0.42);
  background: rgba(255, 255, 255, 0.08);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.95fr);
  gap: 1.35rem;
  align-items: stretch;
  margin: 1.2rem 0 1.5rem;
}

.hero-copy,
.hero-visual,
.content-panel,
.overview-card {
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero-copy {
  position: relative;
  overflow: hidden;
  padding: 2.35rem;
  border-radius: 34px;
  background:
    linear-gradient(145deg, rgba(250, 246, 239, 0.96), rgba(236, 225, 210, 0.88)),
    var(--surface);
}

.hero-copy::after {
  content: "";
  position: absolute;
  inset: auto -4rem -4rem auto;
  width: 16rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(12, 127, 149, 0.18), transparent 65%);
  pointer-events: none;
}

.hero-copy h1 {
  max-width: 12ch;
  margin: 0.2rem 0 0.8rem;
  font-size: clamp(2.8rem, 6vw, 5rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
}

.hero-tagline {
  max-width: 38rem;
  margin-bottom: 1rem;
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  color: var(--accent-strong);
}

.hero-note {
  max-width: 40rem;
  margin-bottom: 0;
  color: var(--muted);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 1.2rem;
}

.metric-card {
  min-height: 100%;
  padding: 1rem 1.05rem;
  border: 1px solid rgba(12, 127, 149, 0.15);
  border-radius: 22px;
  background: rgba(255, 250, 242, 0.72);
  box-shadow: var(--shadow-soft);
}

.metric-value {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-strong);
}

.metric-label {
  margin: 0.25rem 0 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.hero-visual {
  display: grid;
  gap: 1rem;
  padding: 1rem;
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(7, 26, 38, 0.88), rgba(15, 48, 65, 0.82)),
    var(--surface-dark);
  color: #e7eff4;
}

.hero-image-card,
.hero-support-card,
.hero-gallery-card,
.section-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(157, 203, 227, 0.18);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.06);
}

.hero-image-card {
  min-height: 280px;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-support-card {
  padding: 1.2rem 1.25rem;
  background:
    linear-gradient(135deg, rgba(12, 127, 149, 0.22), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.06);
}

.hero-support-card h2 {
  margin: 0 0 0.75rem;
  font-size: 1.5rem;
  line-height: 1.08;
}

.hero-support-card p:last-child {
  margin-bottom: 0;
  color: rgba(231, 239, 244, 0.82);
}

.hero-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.hero-gallery-card {
  aspect-ratio: 1.2;
}

.hero-gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.placeholder-label,
.eyebrow,
.overview-index {
  margin: 0 0 0.55rem;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-copy .eyebrow {
  color: var(--warm);
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.overview-card {
  display: block;
  min-height: 100%;
  padding: 1.15rem;
  border-radius: 26px;
  text-decoration: none;
  background:
    linear-gradient(180deg, rgba(255, 249, 239, 0.94), rgba(239, 230, 217, 0.9)),
    var(--surface);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.overview-card h2 {
  margin: 0 0 0.45rem;
  font-size: 1.2rem;
  line-height: 1.08;
}

.overview-card p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.content-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.88fr);
  gap: 1.15rem;
  align-items: start;
  margin-top: 0.85rem;
  padding: 1.2rem;
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(251, 247, 240, 0.94), rgba(239, 229, 215, 0.88)),
    var(--surface);
}

.panel-copy {
  display: grid;
  gap: 0.85rem;
  min-width: 0;
}

.panel-media-left .panel-copy {
  order: 1;
}

.panel-media-left .section-figure {
  order: 2;
}

.panel-media-right .panel-copy {
  order: 1;
}

.panel-media-right .section-figure {
  order: 2;
}

.panel-heading {
  padding-right: 0;
}

.panel-heading h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.2rem);
  line-height: 1;
}

.panel-summary {
  margin-bottom: 0;
  color: var(--muted);
}

.panel-body {
  font-size: 1.02rem;
}

.panel-body > :first-child {
  margin-top: 0;
}

.panel-body > :last-child {
  margin-bottom: 0;
}

.panel-body h2,
.panel-body h3 {
  color: var(--warm);
}

.panel-body ul {
  padding-left: 1.25rem;
}

.panel-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  background: var(--surface-strong);
}

.panel-body th,
.panel-body td {
  padding: 0.75rem;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.panel-body blockquote {
  margin: 1rem 0;
  padding-left: 1rem;
  border-left: 4px solid var(--accent);
  color: var(--muted);
}

.section-figure {
  position: relative;
  box-shadow: var(--shadow-soft);
}

.section-figure img {
  width: 100%;
  max-height: 360px;
  object-fit: cover;
}

.section-figure figcaption {
  padding: 0.85rem 1rem 1rem;
  font-size: 0.92rem;
  line-height: 1.45;
  color: var(--muted);
  background: rgba(255, 250, 242, 0.92);
}

.section-introduction,
.section-ai-ecosystem {
  grid-template-columns: 1fr;
  gap: 1rem;
}

.section-introduction .section-figure,
.section-ai-ecosystem .section-figure {
  order: 1;
}

.section-introduction .panel-copy,
.section-ai-ecosystem .panel-copy {
  order: 2;
}

.section-introduction .section-figure img,
.section-ai-ecosystem .section-figure img {
  max-height: 300px;
}

.section-introduction .panel-copy,
.section-ai-ecosystem .panel-copy {
  grid-template-columns: minmax(220px, 0.62fr) minmax(0, 1.35fr);
  align-items: start;
  gap: 1rem 1.25rem;
}

.section-introduction .panel-heading,
.section-ai-ecosystem .panel-heading {
  position: sticky;
  top: 5.6rem;
  align-self: start;
}

.section-introduction .panel-body,
.section-ai-ecosystem .panel-body {
  min-width: 0;
}

.section-ai-ecosystem .panel-body ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  padding-left: 0;
  list-style: none;
}

.section-ai-ecosystem .panel-body li {
  min-height: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(12, 127, 149, 0.14);
  border-radius: 18px;
  background: rgba(255, 250, 242, 0.82);
  box-shadow: var(--shadow-soft);
}

.section-ai-ecosystem .panel-body li strong {
  color: var(--accent-strong);
}

@media (max-width: 1050px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .content-panel {
    grid-template-columns: 1fr;
  }

  .panel-media-left .panel-copy,
  .panel-media-left .section-figure,
  .panel-media-right .panel-copy,
  .panel-media-right .section-figure {
    order: initial;
  }

  .section-introduction .panel-copy,
  .section-ai-ecosystem .panel-copy {
    grid-template-columns: 1fr;
  }

  .section-introduction .panel-heading,
  .section-ai-ecosystem .panel-heading {
    position: static;
  }
}

@media (max-width: 900px) {
  .overview-grid,
  .hero-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .hero-copy,
  .hero-visual,
  .content-panel,
  .overview-card {
    border-radius: 24px;
  }

  .hero-copy {
    padding: 2rem 1.5rem;
  }

  .hero-gallery {
    grid-template-columns: 1fr;
  }

  .hero-gallery-card {
    aspect-ratio: 16 / 9;
  }

  .section-ai-ecosystem .panel-body ul {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100vw - 1rem, 1180px);
  }

  .site-header {
    position: static;
    margin-top: 0.4rem;
    padding: 1rem;
    border-radius: 28px;
  }

  .site-nav {
    width: 100%;
    gap: 0.5rem;
  }

  .site-nav a {
    width: 100%;
    text-align: center;
  }

  .overview-grid,
  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    max-width: none;
  }

  .content-panel {
    padding: 1.1rem;
  }
}