:root {
  --bg-body: #edf2ff;
  --bg-gradient: radial-gradient(120% 120% at 20% 20%, #fff5fb 0%, #f1f6ff 45%, #e4f8ff 100%);
  --bg-hero: linear-gradient(135deg, #fff9f3 0%, #f2f7ff 55%, #eef7ff 100%);
  --surface: rgba(255, 255, 255, 0.98);
  --surface-muted: rgba(255, 255, 255, 0.7);
  --text-primary: #101123;
  --text-secondary: #4f5368;
  --brand: #ff6b3d;
  --brand-dark: #d84b2b;
  --brand-secondary: #0eb1ba;
  --brand-tertiary: #845ef7;
  --border-soft: rgba(15, 33, 72, 0.08);
  --shadow-soft: 0 22px 55px rgba(26, 42, 86, 0.15);
  --shadow-card: 0 18px 45px rgba(15, 33, 72, 0.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --font-display: 'Space Grotesk', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

::selection {
  background: var(--brand);
  color: #ffffff;
}

body {
  margin: 0;
  font-family: var(--font-display);
  color: var(--text-primary);
  background: var(--bg-body);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: var(--bg-gradient);
  z-index: -2;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.7) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.35;
  z-index: -1;
  pointer-events: none;
}

a {
  color: var(--brand);
  text-decoration: none;
  font-weight: 500;
}

a:hover,
a:focus {
  color: var(--brand-dark);
}

img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

.shell {
  width: min(1180px, 100% - 2rem);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(15, 33, 72, 0.05);
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 40px rgba(15, 33, 72, 0.12);
}

.site-header .shell {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.8rem 0;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex: 1 1 280px;
}

.brand-mark canvas {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  background: linear-gradient(165deg, #ffe2d5 0%, #ecf7ff 100%);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 18px 40px rgba(15, 33, 72, 0.25);
}

.brand {
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.brand-tagline {
  margin: 0.1rem 0 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.site-nav {
  display: flex;
  align-items: center;
  margin-left: auto;
}

.site-nav .nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 0.6rem;
}

.site-nav a {
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  position: relative;
  transition: color 0.2s ease;
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 0.9rem;
  right: 0.9rem;
  bottom: 0.35rem;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand), var(--brand-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.site-nav a:hover::after,
.site-nav a:focus::after {
  transform: scaleX(1);
}

.nav-toggle {
  border: none;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 999px;
  color: var(--brand);
  padding: 0.4rem 1rem;
  font-weight: 600;
  cursor: pointer;
  display: none;
  align-items: center;
  gap: 0.35rem;
  box-shadow: 0 8px 20px rgba(15, 33, 72, 0.12);
}

.nav-toggle span {
  display: block;
  width: 12px;
  height: 2px;
  background: currentColor;
  position: relative;
  transition: background 0.25s ease;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 100%;
  background: currentColor;
  transition: transform 0.25s ease;
}

.nav-toggle span::before {
  transform: translateY(-5px);
}

.nav-toggle span::after {
  transform: translateY(5px);
}

.nav-toggle.is-active span {
  background: transparent;
}

.nav-toggle.is-active span::before {
  transform: rotate(45deg);
}

.nav-toggle.is-active span::after {
  transform: rotate(-45deg);
}

main {
  padding: 3.5rem 0 2.5rem;
}

.hero {
  position: relative;
  overflow: hidden;
  background: var(--bg-hero);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 3.2rem);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(255, 255, 255, 0.6);
  isolation: isolate;
}

.hero::before,
.hero::after {
  content: '';
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.95), transparent 65%);
  opacity: 0.65;
  filter: blur(4px);
  z-index: -1;
}

.hero::before {
  top: -60px;
  right: -80px;
}

.hero::after {
  bottom: -80px;
  left: -60px;
}

.hero .eyebrow {
  display: inline-flex;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--text-secondary);
  margin-bottom: 0.7rem;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2.1rem, 5vw, 3.3rem);
  line-height: 1.2;
}

.hero p {
  margin: 0;
  max-width: 60ch;
  color: var(--text-secondary);
}



.content-grid {
  margin-top: 2.25rem;
  display: grid;
  grid-template-columns: minmax(230px, 260px) minmax(0, 1fr) minmax(220px, 260px);
  gap: 1.75rem;
  align-items: start;
}

.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
}

.nav-card h2 {
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  margin: 0 0 1rem;
  text-transform: uppercase;
}

.nav-list-column {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.nav-list-column a {
  display: block;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-primary);
  font-weight: 600;
  border: 1px solid rgba(15, 33, 72, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-list-column a:hover,
.nav-list-column a:focus {
  transform: translateX(6px);
  box-shadow: 0 18px 35px rgba(15, 33, 72, 0.15);
}

.prose h1,
.prose h2,
.prose h3 {
  margin-top: 0;
  color: var(--text-primary);
}

.prose h2 {
  margin-top: 2rem;
  font-size: 1.55rem;
}

.prose h3 {
  margin-top: 1.35rem;
  font-size: 1.15rem;
  color: var(--brand-dark);
}

.prose p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.prose ul,
.prose ol {
  color: var(--text-secondary);
  padding-left: 1.2rem;
}

.prose ul li {
  margin-bottom: 0.5rem;
}

.ad-card {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.ad-unit {
  background: rgba(255, 255, 255, 0.75);
  border-radius: var(--radius-md);
  padding: 0.9rem;
  border: 1px dashed rgba(15, 33, 72, 0.12);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.page-footer {
  margin-top: 3.5rem;
  padding: 2.5rem 0 3.5rem;
  color: var(--text-secondary);
}

.page-footer .card {
  text-align: center;
  padding: 2.2rem;
}

@media (max-width: 1150px) {
  .content-grid {
    grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
    grid-template-areas:
      'nav main'
      'ads main';
  }

  .nav-card {
    grid-area: nav;
  }

  .prose {
    grid-area: main;
  }

  .ad-card {
    grid-area: ads;
  }
}

@media (max-width: 900px) {
  .site-header .shell {
    row-gap: 0.5rem;
  }

  .site-nav {
    width: 100%;
  }

  .site-nav .nav-list {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .content-grid {
    display: flex;
    flex-direction: column;
    grid-template-columns: 1fr;
    grid-template-areas: none;
    gap: 1.25rem;
  }

  .content-grid > * {
    width: 100%;
  }

  .nav-card,
  .prose,
  .ad-card {
    grid-area: auto;
  }
}

@media (max-width: 720px) {
  .brand-mark {
    flex: 1 1 100%;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    width: 100%;
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav .nav-list {
    flex-direction: column;
    gap: 0;
    padding: 0.75rem 0;
  }

  .site-nav a {
    display: block;
    width: 100%;
  }

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

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}