/* ========================================
   Marco Reis Blog — Minimal Personal Theme
   ======================================== */

/* --- CSS Custom Properties --- */
:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-text-secondary: #6b7280;
  --color-text-muted: #9ca3af;
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-surface: #f9fafb;
  --color-code-bg: #f3f4f6;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  --max-width: 720px;
  --header-height: 64px;
  --radius: 8px;
  --radius-sm: 4px;
  --transition: 0.2s ease;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border-light);
}

.site-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 2px;
}

.site-logo:hover {
  color: var(--color-text);
}

.logo-cursor {
  display: inline-block;
  color: var(--color-text);
  animation: opacity 1s infinite;
  line-height: 1;
}

@keyframes opacity {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.nav-link:hover {
  color: var(--color-text);
  background-color: var(--color-surface);
}

/* --- Container --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  flex: 1;
}

/* --- Hero Section --- */
.hero {
  display: flex;
  align-items: flex-start;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--color-border);
}

.hero-content {
  flex: 1;
}

.hero-greeting {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-bio {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.hero-bio p {
  margin-bottom: 0.75rem;
}

.hero-bio a {
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: var(--color-border);
  transition: text-decoration-color var(--transition), color var(--transition);
}

.hero-bio a:hover {
  text-decoration-color: var(--color-accent);
}

.hero-image {
  flex-shrink: 0;
}

.profile-photo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-border-light);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}

.profile-photo:hover {
  transform: scale(1.03);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1);
}

/* --- Latest Posts --- */
.latest-posts {
  padding-top: 2.5rem;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.post-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.post-item {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-border-light);
  transition: background-color var(--transition);
}

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

.post-date {
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
  color: var(--color-text-muted);
  white-space: nowrap;
  min-width: 6rem;
}

.post-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition);
}

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

/* --- Article (Single Post) --- */
.article-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.article-title {
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.3;
  margin-bottom: 0.75rem;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-align: left;
  background: none;
  padding: 0;
  border-radius: 0;
}

.article-date {
  font-variant-numeric: tabular-nums;
}

.article-content {
  font-size: 1rem;
  line-height: 1.8;
}

.article-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.article-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

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

.article-content ul,
.article-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.4rem;
}

.article-content a {
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: var(--color-border);
}

.article-content a:hover {
  text-decoration-color: var(--color-accent);
}

/* --- Code --- */
pre {
  background: var(--color-code-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-code-bg);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
}

pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}

/* --- Blockquote --- */
blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--color-surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--color-text-secondary);
  font-style: italic;
}

/* --- Table --- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

thead {
  background: var(--color-surface);
}

th,
td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}

/* --- Footer --- */
.site-footer {
  text-align: center;
  padding: 2rem 1.5rem 2.5rem;
  margin-top: auto;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  border-top: 1px solid var(--color-border-light);
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--color-text-secondary);
  transition: all var(--transition);
}

.social-icon:hover {
  color: var(--color-text);
  background-color: var(--color-surface);
  transform: translateY(-2px);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-copy p {
  margin: 0;
}

/* --- Terms Page --- */
.terms {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.terms li a {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  background: var(--color-surface);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition);
}

.terms li a:hover {
  background: var(--color-accent);
  color: white;
}

/* --- 404 --- */
.not-found {
  text-align: center;
  padding: 4rem 0;
}

/* --- Responsive --- */
@media (max-width: 640px) {
  .hero {
    flex-direction: column-reverse;
    align-items: center;
    gap: 1.5rem;
  }

  .hero-content {
    align-self: stretch;
  }

  .hero-greeting {
    font-size: 1.6rem;
  }

  .profile-photo {
    width: 110px;
    height: 110px;
  }

  .post-item {
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.75rem 0;
  }

  .post-date {
    min-width: auto;
  }

  .article-title {
    font-size: 1.5rem;
  }

  .header-inner {
    padding: 0 1rem;
  }

  .container {
    padding: 1.5rem 1rem;
  }
}

/* --- Print --- */
@media print {

  .site-header,
  .site-footer,
  .footer-social {
    display: none;
  }

  body {
    font-size: 12pt;
    color: black;
  }
}