:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-soft: #0f172a;
  --card: rgba(15, 23, 42, 0.86);
  --border: rgba(148, 163, 184, 0.18);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-2: #818cf8;
  --shadow: 0 18px 50px rgba(2, 8, 23, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, rgba(56, 189, 248, 0.18), transparent 28%),
    linear-gradient(180deg, #050b15 0%, var(--bg) 50%, #050b15 100%);
  color: var(--text);
  line-height: 1.6;
}

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

img {
  max-width: 100%;
}

.site-header,
.site-footer,
.section {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 0;
  position: sticky;
  top: 0;
  backdrop-filter: blur(20px);
  z-index: 10;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.site-nav a {
  color: var(--muted);
}

.site-nav a:hover,
.blog-link a:hover,
.contact-links a:hover {
  color: white;
}

.menu-button {
  display: none;
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.75);
  color: var(--text);
  border-radius: 999px;
  padding: 0.65rem 1rem;
}

.section {
  padding: 3.5rem 0;
}

.hero {
  display: grid;
  grid-template-columns: 1.5fr 0.9fr;
  gap: 1.5rem;
  align-items: stretch;
  padding-top: 2rem;
}

.hero-copy,
.hero-card,
.card,
.timeline-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 2rem;
}

.hero-card {
  padding: 1.5rem;
}

.eyebrow,
.section-heading p,
.tag,
.article-meta,
.timeline-date {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.8rem);
  line-height: 1.05;
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.lead {
  color: #cbd5e1;
  font-size: 1.08rem;
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.8rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
}

.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #020617;
}

.secondary {
  border-color: var(--border);
  background: rgba(15, 23, 42, 0.45);
}

.section-heading {
  margin-bottom: 1.25rem;
}

.timeline,
.card-grid,
.two-col {
  display: grid;
  gap: 1rem;
}

.timeline-item,
.card {
  padding: 1.35rem;
}

.timeline-item ul,
.card ul,
.article-body ul {
  padding-left: 1.2rem;
  margin-bottom: 0;
}

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

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

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.chip-list span {
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.55);
  border-radius: 999px;
  padding: 0.65rem 0.9rem;
}

.tag {
  display: inline-block;
  margin-bottom: 0.75rem;
}

.blog-link,
.contact-links {
  margin-top: 1rem;
}

.contact-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.contact-links a,
.blog-link a,
.article-body a {
  color: var(--accent);
}

.site-footer {
  padding: 1.5rem 0 2.5rem;
  color: var(--muted);
}

.article-page,
.blog-page {
  padding-top: 2rem;
}

.article-page {
  max-width: 760px;
}

.article-body {
  color: #dbe4f0;
}

.article-body h2 {
  margin-top: 2rem;
}

.always-visible {
  display: flex !important;
}

@media (max-width: 920px) {
  .hero,
  .card-grid,
  .two-col {
    grid-template-columns: 1fr;
  }

  .site-header {
    flex-wrap: wrap;
  }

  .menu-button {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    padding: 0.85rem 0 0.2rem;
  }

  .site-nav.open {
    display: flex;
  }

  .always-visible {
    display: flex !important;
    flex-direction: row !important;
    width: auto !important;
    padding: 0 !important;
  }
}