:root {
  color-scheme: dark;
  --bg: #050815;
  --panel: rgba(15, 23, 42, 0.78);
  --panel-strong: rgba(15, 23, 42, 0.94);
  --line: rgba(148, 163, 184, 0.22);
  --text: #f8fafc;
  --muted: #b8c4d8;
  --soft: #8ea1bc;
  --cyan: #22d3ee;
  --mint: #5eead4;
  --blue: #60a5fa;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 6%, rgba(34, 211, 238, 0.16), transparent 28rem),
    radial-gradient(circle at 82% 12%, rgba(96, 165, 250, 0.14), transparent 26rem),
    linear-gradient(180deg, #050815 0%, #08101f 58%, #050815 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 8, 21, 0.82);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1180px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--cyan);
}

.hero,
.section,
.footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 4.5rem 1.25rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0.42rem 0.78rem;
  border: 1px solid rgba(34, 211, 238, 0.34);
  border-radius: 999px;
  color: var(--cyan);
  background: rgba(34, 211, 238, 0.08);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  max-width: 920px;
  margin-top: 1.1rem;
  font-size: clamp(2.45rem, 6vw, 5.2rem);
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.75rem);
}

h3 {
  font-size: 1.12rem;
}

p {
  color: var(--muted);
  margin: 1rem 0 0;
}

.lead {
  max-width: 760px;
  font-size: 1.1rem;
}

.hero-card,
.card,
.proof-card,
.qa,
.cta-panel {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel);
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.32);
}

.hero-card {
  overflow: hidden;
}

.hero-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero-card div {
  padding: 1.25rem;
}

.cta-row,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: 12px;
  color: #020617;
  background: #f8fafc;
  font-weight: 900;
  text-decoration: none;
}

.button.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

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

.card,
.qa,
.proof-card,
.cta-panel {
  padding: 1.25rem;
}

.card span,
.proof-card span {
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card ul,
.qa ul {
  padding-left: 1.1rem;
  color: var(--muted);
}

.card li + li,
.qa li + li {
  margin-top: 0.45rem;
}

.qa + .qa {
  margin-top: 1rem;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.proof-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 14px;
  margin-bottom: 1rem;
  background: rgba(255, 255, 255, 0.04);
}

.muted {
  color: var(--soft);
}

.footer {
  padding-top: 2rem;
  color: var(--soft);
  font-size: 0.92rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0;
  color: var(--soft);
  font-size: 0.88rem;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--cyan);
}

.article-shell {
  max-width: 920px;
  margin: 0 auto;
  padding: 3.5rem 1.25rem;
}

.article-shell .lead {
  font-size: 1.16rem;
}

.answer-box,
.source-note,
.link-panel {
  margin-top: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
  padding: 1.25rem;
}

.answer-box {
  border-color: rgba(34, 211, 238, 0.34);
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.14), rgba(15, 23, 42, 0.82));
}

.answer-box strong,
.source-note strong,
.link-panel strong {
  display: block;
  color: var(--text);
}

.article-section {
  margin-top: 2.5rem;
}

.article-section h2 {
  font-size: clamp(1.45rem, 2.4vw, 2.1rem);
}

.article-section ul,
.source-note ul {
  padding-left: 1.1rem;
  color: var(--muted);
}

.article-section li + li,
.source-note li + li {
  margin-top: 0.5rem;
}

.link-panel .button-row {
  margin-top: 1rem;
}

.insight-list {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.insight-list .card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
}

.insight-list .card a {
  color: var(--cyan);
  font-weight: 900;
  text-decoration: none;
}

@media (max-width: 860px) {
  .hero,
  .grid,
  .grid.two,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .hero,
  .section,
  .footer {
    padding: 3rem 1rem;
  }

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

  .insight-list .card {
    grid-template-columns: 1fr;
  }
}