:root {
  --container: 1120px;

  --bg: #0b0d12;
  --surface: rgba(255, 255, 255, 0.06);
  --surface-2: rgba(255, 255, 255, 0.085);

  --text: rgba(255, 255, 255, 0.92);
  --text-muted: rgba(255, 255, 255, 0.72);
  --text-faint: rgba(255, 255, 255, 0.55);

  --border: rgba(255, 255, 255, 0.12);
  --border-strong: rgba(255, 255, 255, 0.18);

  --accent: #5aa7ff;
  --accent-2: #8b5cf6;

  --shadow: 0 18px 50px rgba(0, 0, 0, 0.42);
  --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.28);

  --radius: 16px;
  --radius-sm: 12px;

  --ring: 0 0 0 4px rgba(90, 167, 255, 0.28);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Source Serif 4', ui-serif, Georgia, serif;

  --transition-fast: 160ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-smooth: 240ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f8fb;
    --surface: rgba(15, 23, 42, 0.05);
    --surface-2: rgba(15, 23, 42, 0.075);

    --text: rgba(15, 23, 42, 0.92);
    --text-muted: rgba(15, 23, 42, 0.72);
    --text-faint: rgba(15, 23, 42, 0.55);

    --border: rgba(15, 23, 42, 0.12);
    --border-strong: rgba(15, 23, 42, 0.18);

    --shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
    --shadow-soft: 0 8px 24px rgba(15, 23, 42, 0.09);
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(900px 500px at 18% 18%, rgba(90, 167, 255, 0.12), transparent 60%),
    radial-gradient(800px 480px at 84% 78%, rgba(139, 92, 246, 0.11), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

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

a:focus-visible,
button:focus-visible {
  outline: none;
  box-shadow: var(--ring);
  border-radius: 10px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 16px;
  padding: 10px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  transform: translateY(-200%);
  transition: transform var(--transition-fast);
  z-index: 10;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 32px);
  width: 100%;
  position: relative;
  z-index: 1;
}

.site-header {
  padding: clamp(20px, 3vw, 28px) 0 0;
}

.site-nav {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  z-index: 5;
}

.site-nav::before {
  content: '';
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: -1;
}

.brand {
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 14px;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text);
  background: var(--surface);
  border-color: var(--border);
}

.hero {
  padding: clamp(40px, 6.5vw, 72px) 0 clamp(28px, 4.5vw, 48px);
  text-align: center;
}

.hero-eyebrow {
  color: var(--text-faint);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5.3vw, 4.4rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 16px;
}

.hero-subtitle {
  color: var(--text-muted);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  font-weight: 400;
  max-width: 58ch;
  margin: 0 auto;
}

main {
  padding: 0 0 clamp(48px, 7vw, 80px);
}

.section {
  padding: clamp(24px, 4vw, 40px) 0;
}

.section-heading {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 18px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  letter-spacing: -0.02em;
}

.section-lede {
  color: var(--text-muted);
  max-width: 60ch;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
}

.article-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth), background var(--transition-smooth);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.article-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  background: var(--surface-2);
  box-shadow: var(--shadow);
}

.article-header {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  align-items: start;
}

.article-thumbnail {
  width: 96px;
  height: 128px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.05);
}

.article-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  background: color-mix(in srgb, var(--accent) 12%, var(--surface));
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 600;
}

.badge-secondary {
  border-color: color-mix(in srgb, var(--accent-2) 30%, var(--border));
  background: color-mix(in srgb, var(--accent-2) 10%, var(--surface));
}

.meta-sep {
  color: var(--text-faint);
}

.meta {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.article-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 8px;
}

.article-description {
  color: var(--text-muted);
}

.card-footer {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-start;
}

.read-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-weight: 600;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.read-link:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.read-link svg {
  width: 18px;
  height: 18px;
}

.about-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-soft);
  color: var(--text-muted);
  max-width: 80ch;
}

footer {
  text-align: center;
  padding: 34px 0 28px;
  color: var(--text-faint);
  border-top: 1px solid var(--border);
}

@media (max-width: 640px) {
  .article-header {
    grid-template-columns: 1fr;
  }

  .article-thumbnail {
    width: 100%;
    height: 170px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition: none !important;
  }
}