/* === Variables === */
:root {
  --color-bg: #faf9f7;
  --color-text: #1a1a1a;
  --color-text-muted: #5c5c5c;
  --color-accent: #2d4a3e;
  --color-accent-light: #4a6b5c;
  --color-border: #e8e6e3;
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --max-width: 680px;
  --spacing: 1.5rem;
}

/* === Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
}

/* === Typography === */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  line-height: 1.2;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.75rem;
  margin: 0 0 1.5rem;
  color: var(--color-accent);
}

h3 {
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
  font-weight: 600;
}

p {
  margin: 0 0 1rem;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-accent-light);
}

/* === Layout === */
.site-header {
  padding: var(--spacing) 0;
  border-bottom: 1px solid var(--color-border);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
}

.nav-logo:hover {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

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

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

/* === Hero === */
.hero {
  margin-bottom: 4rem;
}

.tagline {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.intro {
  font-size: 1.125rem;
  max-width: 540px;
}

/* === Sections === */
.section {
  margin-bottom: 4rem;
}

.section-intro {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

/* === Project Grid === */
.project-grid {
  display: grid;
  gap: 1.5rem;
}

.project-card {
  padding: 1.5rem;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.project-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 20px rgba(45, 74, 62, 0.08);
}

.project-card p {
  margin-bottom: 0.75rem;
  font-size: 0.9375rem;
}

.project-meta {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.project-card a {
  font-size: 0.875rem;
  font-weight: 500;
}

/* === Blog === */
.blog-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.blog-preview {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
}

.blog-preview:last-child {
  border-bottom: none;
}

.blog-preview a {
  color: inherit;
  display: block;
}

.blog-preview a:hover h3 {
  color: var(--color-accent);
}

.blog-preview time {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.blog-preview h3 {
  margin: 0.25rem 0 0.5rem;
}

.blog-preview p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* === Footer === */
.site-footer {
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
}

/* === Blog Post Page === */
.blog-post {
  max-width: 580px;
  margin: 0 auto;
}

.blog-post .back-link {
  display: inline-block;
  margin-bottom: 2rem;
  font-size: 0.9375rem;
}

.blog-post h1 {
  margin-bottom: 0.5rem;
}

.blog-post .post-meta {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.blog-post .post-content {
  font-size: 1.0625rem;
}

.blog-post .post-content p {
  margin-bottom: 1.25rem;
}

/* === Responsive === */
@media (max-width: 640px) {
  .nav-links {
    gap: 1.25rem;
  }

  main {
    padding: 2rem 1.25rem 3rem;
  }

  .hero {
    margin-bottom: 3rem;
  }
}