:root {
  --background: #ffffff;
  --surface: #f8fafc;
  --surface-strong: #ffffff;
  --foreground: #111827;
  --muted: #6b7280;
  --border: rgba(17, 24, 39, 0.1);
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --secondary: #0d9488;
  --secondary-strong: #0f766e;
  --shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
  --radius: 18px;
  --shell: 1280px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--foreground);
  background: var(--background);
  line-height: 1.6;
}

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

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

.site-shell {
  width: min(calc(100% - 2rem), var(--shell));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 600;
}

.brand-mark__icon {
  display: inline-flex;
  width: 1.5rem;
  height: 1.5rem;
  color: var(--primary);
}

.brand-mark__icon svg {
  width: 100%;
  height: 100%;
}

.site-header__toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 0.5rem;
  cursor: pointer;
}

.site-header__toggle span {
  display: block;
  width: 1.5rem;
  height: 2px;
  margin: 0.25rem 0;
  background: var(--foreground);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav__menus,
.site-nav__actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-group {
  position: relative;
}

.nav-link {
  color: #374151;
  font-size: 0.9375rem;
  transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: #111827;
}

.nav-link--button {
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 0;
  display: grid;
  gap: 0.125rem;
  width: 17rem;
  padding: 0.5rem;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(0.35rem);
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}

.nav-dropdown a {
  display: block;
  padding: 0.65rem 0.8rem;
  border-radius: 0.8rem;
  color: #374151;
}

.nav-dropdown a:hover {
  background: #f8fafc;
  color: #111827;
}

.nav-dropdown--with-copy a strong,
.nav-dropdown--with-copy a span {
  display: block;
}

.nav-dropdown--with-copy a span {
  color: var(--muted);
  font-size: 0.8125rem;
}

.nav-group:hover .nav-dropdown,
.nav-group.is-open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.7rem;
  padding: 0.8rem 1.1rem;
  font-weight: 600;
  transition: background 0.2s ease, color 0.2s ease;
}

.button--primary {
  background: var(--primary);
  color: #fff;
}

.button--primary:hover {
  background: var(--primary-strong);
}

.button--light {
  background: #fff;
  color: var(--primary);
}

.button--light:hover {
  background: #eff6ff;
}

.button--full {
  width: 100%;
}

.site-main {
  min-height: calc(100vh - 4rem);
}

.blog-hero,
.single-post__hero {
  background: linear-gradient(135deg, rgba(219, 234, 254, 0.9), rgba(255, 255, 255, 1), rgba(204, 251, 241, 0.9));
}

.blog-hero__inner,
.single-post__hero-inner {
  padding: 7rem 0 4.5rem;
  text-align: center;
}

.eyebrow,
.eyebrow-link {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-hero h1,
.single-post__hero h1,
.prose-card h1 {
  margin: 0;
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  line-height: 1.1;
}

.lede {
  width: min(44rem, 100%);
  margin: 1.25rem auto 0;
  color: var(--muted);
  font-size: 1.15rem;
}

.blog-grid-section,
.content-section {
  padding: 4rem 0;
}

.blog-grid {
  display: grid;
  gap: 1.75rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.post-card,
.prose-card,
.aside-card {
  overflow: hidden;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.post-card__media {
  position: relative;
  display: block;
  min-height: 14rem;
}

.post-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-card__placeholder {
  position: absolute;
  left: 1.25rem;
  bottom: 1.25rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
}

.post-card__body,
.prose-card,
.aside-card {
  padding: 1.5rem;
}

.post-card__meta,
.single-post__meta,
.prose-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.post-card h2 {
  margin: 0.75rem 0;
  font-size: 1.45rem;
  line-height: 1.25;
}

.post-card p,
.site-footer p,
.aside-card p,
.empty-state p {
  color: var(--muted);
}

.post-card__cta {
  display: inline-flex;
  margin-top: 0.8rem;
  color: var(--primary);
  font-weight: 600;
}

.pagination-wrap {
  margin-top: 2rem;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
}

.nav-links a,
.nav-links span {
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  background: #fff;
}

.nav-links .current {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.blog-cta {
  padding: 4.5rem 0;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.blog-cta__inner {
  text-align: center;
  color: #fff;
}

.blog-cta__inner h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
}

.blog-cta__inner p {
  width: min(42rem, 100%);
  margin: 1rem auto 2rem;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.05rem;
}

.single-post__content-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 20rem;
  gap: 2rem;
  padding: 3.5rem 0 4.5rem;
}

.single-post__content {
  min-width: 0;
}

.single-post__image {
  overflow: hidden;
  margin-bottom: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.entry-content {
  color: #1f2937;
}

.entry-content > *:first-child {
  margin-top: 0;
}

.entry-content h2,
.entry-content h3,
.entry-content h4 {
  margin-top: 2rem;
  margin-bottom: 0.9rem;
  line-height: 1.2;
}

.entry-content p,
.entry-content li,
.entry-content blockquote {
  font-size: 1.05rem;
}

.entry-content a {
  color: var(--primary);
  text-decoration: underline;
}

.entry-content blockquote {
  margin: 1.5rem 0;
  padding-left: 1rem;
  border-left: 4px solid rgba(37, 99, 235, 0.25);
  color: #374151;
}

.entry-content pre,
.entry-content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.entry-content pre {
  overflow-x: auto;
  padding: 1rem;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 1rem;
}

.aside-links {
  margin: 0;
  padding-left: 1rem;
}

.aside-links li + li {
  margin-top: 0.6rem;
}

.prose-shell {
  width: min(52rem, 100%);
}

.empty-state {
  padding: 3rem;
  text-align: center;
  background: #f8fafc;
  border: 1px dashed rgba(17, 24, 39, 0.14);
  border-radius: var(--radius);
}

.site-footer {
  background: #f9fafb;
  border-top: 1px solid var(--border);
}

.site-footer__inner {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1.2fr 1.8fr;
  padding: 3.5rem 0 2rem;
}

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

.site-footer h2 {
  margin: 0 0 0.8rem;
  font-size: 0.95rem;
}

.site-footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer li + li {
  margin-top: 0.45rem;
}

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

.site-footer a:hover {
  color: var(--foreground);
}

.site-footer__bottom {
  padding: 1.25rem 0 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .site-header__toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
    padding: 1rem;
    background: #fff;
    border-bottom: 1px solid var(--border);
  }

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

  .site-nav__menus,
  .site-nav__actions {
    flex-direction: column;
    align-items: stretch;
    gap: 0.9rem;
  }

  .nav-dropdown {
    position: static;
    display: none;
    width: 100%;
    margin-top: 0.6rem;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
  }

  .nav-group.is-open .nav-dropdown {
    display: grid;
  }

  .nav-link--button,
  .nav-link,
  .button {
    width: 100%;
    text-align: left;
  }

  .blog-grid,
  .site-footer__inner,
  .site-footer__columns,
  .single-post__content-wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .blog-hero__inner,
  .single-post__hero-inner {
    padding: 5.5rem 0 3.5rem;
  }

  .post-card__body,
  .prose-card,
  .aside-card {
    padding: 1.25rem;
  }
}