/* ===== CSS Reset & Base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* FT-inspired warm color palette */
  --color-bg: #FFF1E5;
  --color-bg-alt: #FFEBD6;
  --color-text: #1a1a1a;
  --color-text-light: #4a4a4a;
  --color-accent: #C74600;
  --color-accent-hover: #A03800;
  --color-border: #E6D5C3;

  /* Typography */
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;

  /* Layout */
  --max-width: 800px;
  --line-height: 1.6;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  line-height: var(--line-height);
  color: var(--color-text);
  background-color: var(--color-bg);
}

/* ===== Accessibility ===== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-accent);
  color: white;
  padding: var(--space-xs) var(--space-sm);
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* ===== Layout ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ===== Header ===== */
.site-header {
  padding: var(--space-xl) 0 var(--space-lg);
  border-bottom: 2px solid var(--color-border);
}

.site-title {
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
}

.site-title a {
  color: var(--color-text);
  text-decoration: none;
}

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

/* ===== Main Content ===== */
main {
  padding: var(--space-xl) 0;
  min-height: 70vh;
}

/* ===== Posts List ===== */
.posts-list h2 {
  font-size: 1.75rem;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

.post-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  align-items: baseline;
}

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

.post-date {
  flex-shrink: 0;
  font-size: 0.9rem;
  color: var(--color-text-light);
  font-variant-numeric: tabular-nums;
  min-width: 140px;
}

.post-link {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  flex-grow: 1;
}

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

/* ===== Individual Post ===== */
.post {
  max-width: 70ch;
}

.post-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 2px solid var(--color-border);
}

.post-title {
  font-size: 2.25rem;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.post-header .post-date {
  font-size: 1rem;
  color: var(--color-text-light);
}

.post-content {
  font-size: 1.125rem;
  line-height: 1.7;
}

.post-content h2 {
  font-size: 1.75rem;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.post-content h3 {
  font-size: 1.375rem;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.post-content p {
  margin-bottom: var(--space-md);
}

.post-content ul,
.post-content ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

.post-content li {
  margin-bottom: var(--space-xs);
}

.post-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

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

.post-content blockquote {
  margin: var(--space-lg) 0;
  padding-left: var(--space-md);
  border-left: 4px solid var(--color-accent);
  font-style: italic;
  color: var(--color-text-light);
  background-color: var(--color-bg-alt);
  padding: var(--space-md);
  border-radius: 4px;
}

/* Code blocks */
.post-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background-color: var(--color-bg-alt);
  padding: 0.2em 0.4em;
  border-radius: 3px;
  border: 1px solid var(--color-border);
}

.post-content pre {
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow-x: auto;
  line-height: 1.5;
}

.post-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.95rem;
}

.post-footer {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.back-link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
}

.back-link:hover {
  text-decoration: underline;
}

/* ===== Footer ===== */
.site-footer {
  border-top: 2px solid var(--color-border);
  padding: var(--space-lg) 0;
  margin-top: var(--space-xl);
}

.site-footer p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  text-align: center;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  :root {
    --space-xl: 2rem;
    --space-lg: 1.5rem;
  }

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

  .post-title {
    font-size: 1.75rem;
  }

  .post-item {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .post-date {
    min-width: auto;
    font-size: 0.85rem;
  }

  .post-content {
    font-size: 1rem;
  }

  .post-content pre {
    margin-left: calc(var(--space-md) * -1);
    margin-right: calc(var(--space-md) * -1);
    border-radius: 0;
    padding: var(--space-sm);
  }
}

/* ===== Focus Styles for Accessibility ===== */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}