:root {
  --bg: #f3f4f6;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --text: #18212f;
  --muted: #586173;
  --line: rgba(24, 33, 47, 0.12);
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.12);
  --shadow-md: 0 18px 40px rgba(15, 23, 42, 0.08);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.12), transparent 26%),
    linear-gradient(180deg, #eef2ff 0%, #f8fafc 24%, #f3f4f6 100%);
  color: var(--text);
  font-family: "Inter", sans-serif;
}

a {
  color: inherit;
}

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

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid rgba(24, 33, 47, 0.08);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.brand-wordmark {
  font-weight: 800;
  letter-spacing: -0.03em;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 18px;
}

.site-nav a,
.footer-link,
.text-link,
.back-link {
  text-decoration: none;
  color: var(--primary-dark);
  font-weight: 600;
}

.hero,
.article-hero {
  padding: 64px 0 28px;
}

.hero-grid,
.article-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 28px;
  align-items: start;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: "Playfair Display", serif;
  letter-spacing: -0.03em;
}

.hero h1,
.article-hero h1 {
  font-size: clamp(2.4rem, 5vw, 4.3rem);
  line-height: 0.98;
}

.hero-copy {
  margin: 18px 0 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.8;
}

.hero-panel,
.post-card,
.empty-state,
.article-body {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-xl);
}

.hero-panel {
  padding: 24px;
}

.hero-panel h2 {
  margin: 4px 0 12px;
  font-size: 1.7rem;
}

.hero-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.hero-panel-meta {
  margin-top: 18px !important;
  font-size: 0.95rem;
}

.section {
  padding: 16px 0 72px;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.post-card {
  overflow: hidden;
}

.post-card-image-link {
  display: block;
  background: #e5e7eb;
}

.post-card-image {
  aspect-ratio: 16 / 9;
  width: 100%;
  object-fit: cover;
}

.post-card-body {
  padding: 24px;
}

.post-meta,
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--muted);
  font-size: 0.94rem;
}

.post-card h2 {
  margin-top: 10px;
  font-size: 2rem;
}

.post-card h2 a {
  text-decoration: none;
}

.post-card p {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.75;
}

.text-link {
  display: inline-flex;
  margin-top: 18px;
}

.empty-state {
  padding: 32px;
}

.empty-state p {
  margin-bottom: 0;
  color: var(--muted);
}

.article-page {
  padding-bottom: 64px;
}

.back-link {
  display: inline-flex;
  margin-bottom: 20px;
}

.article-hero-media {
  overflow: hidden;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  min-height: 220px;
}

.article-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-layout {
  display: grid;
  gap: 24px;
  min-width: 0;
}

.article-body {
  padding: clamp(22px, 4vw, 40px);
  min-width: 0;
  overflow-wrap: break-word;
}

.article-body > *:first-child {
  margin-top: 0;
}

.article-body > *:last-child {
  margin-bottom: 0;
}

.article-body p,
.article-body li,
.article-body blockquote {
  color: #263142;
  font-size: 1.04rem;
  line-height: 1.85;
}

.article-body h2,
.article-body h3,
.article-body h4 {
  margin-top: 34px;
  margin-bottom: 14px;
}

.article-body h2 {
  font-size: 2rem;
}

.article-body h3 {
  font-size: 1.45rem;
}

.article-body ul,
.article-body ol {
  padding-left: 1.35rem;
}

.article-body a {
  color: var(--primary-dark);
}

.article-body img,
.article-body figure {
  margin: 28px auto;
}

.article-body img {
  border-radius: 18px;
  box-shadow: var(--shadow-md);
}

.article-body figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.94rem;
  text-align: center;
}

.article-body blockquote {
  margin: 28px 0;
  padding: 18px 22px;
  border-left: 4px solid var(--primary);
  background: rgba(37, 99, 235, 0.06);
  border-radius: 0 18px 18px 0;
}

.article-body pre,
.article-body code {
  font-family: "SFMono-Regular", "Menlo", monospace;
}

.article-body pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 18px;
  border-radius: 18px;
  background: #111827;
  color: #f9fafb;
}

.article-body :not(pre) > code {
  padding: 0.18rem 0.4rem;
  border-radius: 0.45rem;
  background: rgba(15, 23, 42, 0.08);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.site-footer {
  margin-top: auto;
  border-top: 1px solid rgba(24, 33, 47, 0.08);
  background: rgba(255, 255, 255, 0.58);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0 38px;
}

.footer-inner p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

@media (max-width: 880px) {
  .hero-grid,
  .article-hero-grid,
  .post-grid,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 1.25rem, 1120px);
  }

  .topbar {
    padding: 14px 0;
  }

  .site-nav {
    gap: 12px;
    font-size: 0.95rem;
  }

  .hero,
  .article-hero {
    padding-top: 42px;
  }

  .post-card-body,
  .hero-panel,
  .article-body,
  .empty-state {
    padding: 20px;
  }
}