*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #faf9f7;
  --text: #1a1917;
  --muted: #6b6860;
  --border: #e2e0da;
  --accent: #2c5f8a;
  --accent-light: #ddeaf4;
  --code-bg: #f0ede8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141312;
    --text: #f0ede8;
    --muted: #908d85;
    --border: #2a2926;
    --accent: #7ab3d8;
    --accent-light: #1a2d3a;
    --code-bg: #1f1e1c;
  }
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Layout ── */
.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

/* ── Site header / nav ── */
.site-header {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--text);
  text-decoration: none;
}

.site-logo em { font-style: italic; color: var(--accent); }

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

.site-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}

.site-nav a:hover,
.site-nav a.active { color: var(--text); }

/* ── Page header ── */
.page-header {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}

h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

h1 em { font-style: italic; color: var(--accent); }

.tagline {
  margin-top: 1.25rem;
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 480px;
  line-height: 1.6;
}

/* ── Sections ── */
main { flex: 1; }

section {
  padding: 3rem 0;
  border-bottom: 1px solid var(--border);
}

section:last-child { border-bottom: none; }

h2 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
  color: var(--text);
}

h3 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.35rem;
}

p { color: var(--muted); margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

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

/* ── Product grid ── */
.product-group { margin-bottom: 2rem; }
.product-group:last-child { margin-bottom: 0; }

.product-group-label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.product-list { display: flex; flex-direction: column; gap: 0.5rem; }

.product-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--accent-light);
}

.product-name {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
}

.product-badge {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── Interests ── */
.interests {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.tag {
  font-size: 0.85rem;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
}

/* ── Contact ── */
.contact-links { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 0.5rem; }

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
  transition: color 0.2s;
}

.contact-link:hover { color: var(--text); }

.contact-link .icon {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}

/* ── Blog list ── */
.post-list { display: flex; flex-direction: column; gap: 0; }

.post-item {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
}

.post-item:last-child { border-bottom: none; }

.post-meta {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.post-title {
  font-family: 'DM Serif Display', serif;
  font-size: 1.3rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.post-title a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s;
}

.post-title a:hover { color: var(--accent); }

.post-excerpt { font-size: 0.95rem; color: var(--muted); }

.read-more {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
}

/* ── Blog post ── */
.post-header {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
}

.post-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.post-content {
  padding: 2.5rem 0;
}

.post-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-size: 1.4rem;
}

.post-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

.post-content p {
  margin-bottom: 1.25rem;
  font-size: 1.025rem;
  line-height: 1.8;
}

.post-content ul,
.post-content ol {
  margin: 0 0 1.25rem 1.5rem;
  color: var(--muted);
  font-size: 1.025rem;
  line-height: 1.8;
}

.post-content code {
  font-family: 'DM Mono', 'Fira Code', monospace;
  font-size: 0.875em;
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  color: var(--text);
}

.post-content pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

.post-content pre code {
  background: none;
  padding: 0;
  font-size: 0.9rem;
  line-height: 1.6;
}

.post-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1.25rem;
  margin: 1.5rem 0;
  color: var(--muted);
  font-style: italic;
}

/* ── Back link ── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: 2rem;
  transition: color 0.2s;
}

.back-link:hover { color: var(--text); }

/* ── Footer ── */
footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

footer p { font-size: 0.8rem; color: var(--muted); }

/* ── Animations ── */
@media (prefers-reduced-motion: no-preference) {
  .page-header, .post-header, section, .post-item {
    animation: fade-up 0.4s ease both;
  }
  @keyframes fade-up {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
  }
}