:root {
  --bg: #f7f5f2;
  --surface: #ffffff;
  --surface-soft: #f0ede8;
  --line: #e2ddd4;
  --text: #1c1b19;
  --muted: #5f5a53;
  --accent: #0f766e;
  --accent-soft: #d8ebe8;
  --shadow: 0 10px 30px rgba(28, 27, 25, 0.05);
  --container: 920px;
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", sans-serif;
  font-size: 15px;
}

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

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

button {
  font: inherit;
}

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

.section {
  padding: 3.5rem 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 0;
  background: rgba(247, 245, 242, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(226, 221, 212, 0.8);
}

.brand {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.nav {
  display: flex;
  gap: 1.25rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav a:hover,
.nav a:focus-visible,
.hero-actions a:hover,
.hero-actions a:focus-visible,
.article-link:hover,
.article-link:focus-visible,
.back-link:hover,
.back-link:focus-visible {
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) 240px;
  gap: 3rem;
  align-items: start;
  padding-top: 4.25rem;
}

.section-tag {
  display: inline-block;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

h1,
h2,
h3,
#modal-title {
  margin: 0;
  font-family: "Source Serif 4", serif;
  font-weight: 600;
  letter-spacing: -0.03em;
}

h1 {
  margin-top: 1rem;
  font-size: clamp(2.7rem, 7vw, 4.3rem);
  line-height: 0.96;
}

h2 {
  margin-top: 0.85rem;
  font-size: clamp(1.8rem, 4vw, 2.35rem);
  line-height: 1.08;
}

.hero-subtitle {
  margin: 1.1rem 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.hero-description,
.about-copy p,
.contact-panel p,
.hero-card-info p,
.article-card p,
.highlights span,
.article-body p {
  color: var(--muted);
  line-height: 1.75;
  font-size: 0.98rem;
}

.hero-description {
  max-width: 42rem;
  margin: 1.5rem 0 0;
  color: var(--text);
  font-size: 1.05rem;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-actions a {
  padding-bottom: 0.2rem;
  border-bottom: 1px solid transparent;
  color: var(--muted);
  transition: border-color 0.2s ease;
}

.hero-actions a:hover,
.hero-actions a:focus-visible {
  border-color: var(--text);
}

.hero-aside {
  padding-top: 0.5rem;
}

.profile-image {
  width: 180px;
  aspect-ratio: 1 / 1;
  border-radius: 999px;
  object-fit: cover;
  object-position: center 18%;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-card-info {
  margin-top: 1.25rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
}

.hero-card-label,
.article-category {
  display: inline-block;
  margin-bottom: 0.65rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-heading {
  max-width: 44rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(220px, 0.8fr);
  gap: 3rem;
  margin-top: 2rem;
}

.about-copy p {
  margin: 0;
}

.about-copy p + p {
  margin-top: 1.2rem;
}

.highlights {
  display: grid;
  gap: 1.3rem;
  align-content: start;
}

.highlights div {
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--line);
}

.highlights strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.98rem;
}

.articles-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 2rem;
}

.article-card {
  padding: 0 0 1.5rem;
  border-bottom: 1px solid var(--line);
}

.article-card h3 {
  font-size: 1.65rem;
  line-height: 1.18;
}

.article-card p {
  max-width: 44rem;
  margin: 0.8rem 0 1rem;
}

.article-meta-row {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.article-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.article-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.article-link:hover::after,
.article-link:focus-visible::after {
  transform: translateX(2px);
}

.contact-panel {
  margin-top: 2rem;
  max-width: 44rem;
}

.site-footer {
  padding: 2rem 0 3rem;
  color: var(--muted);
  font-size: 0.95rem;
  border-top: 1px solid var(--line);
}

.page-shell-article {
  max-width: 780px;
}

.article-page {
  padding: 4rem 0 2rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  color: var(--muted);
}

.article-header {
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--line);
}

.article-meta {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.article-summary {
  max-width: 40rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.8;
}

.article-body {
  padding: 2rem 0 1rem;
}

.article-body h2 {
  margin: 2.5rem 0 0.9rem;
  font-size: 1.6rem;
}

.article-body p {
  margin: 0;
  max-width: 42rem;
}

.article-body p + p {
  margin-top: 1.1rem;
}

.article-body ul {
  max-width: 42rem;
  margin: 1rem 0;
  padding-left: 1.2rem;
  color: var(--muted);
  line-height: 1.75;
}

.article-body li + li {
  margin-top: 0.55rem;
}

.article-body pre {
  max-width: 42rem;
  margin: 1rem 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fbfaf8;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.article-body code {
  font-family:
    ui-monospace, SFMono-Regular, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  font-size: 0.9rem;
  color: #24403d;
}

@media (max-width: 860px) {
  .hero,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 2rem;
    padding-top: 3rem;
  }

  .hero-aside {
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }

  .hero-card-info {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
  }
}

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

  .section {
    padding: 3rem 0;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .nav {
    flex-wrap: wrap;
  }

  .hero-aside {
    flex-direction: column;
    align-items: flex-start;
  }

  .profile-image {
    width: 132px;
  }

  .article-page {
    padding-top: 3rem;
  }

  .article-meta-row {
    flex-direction: column;
    gap: 0.35rem;
  }
}