/* ============================================
   Base — Reset, Typography, Elements
   ============================================ */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--navbar-height) + 24px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.025em;
}

h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

h3 {
  font-size: 1.2rem;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

h4 {
  font-size: 1.05rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--color-text-secondary);
}

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

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

strong {
  font-weight: 600;
  color: var(--color-text);
}

em {
  font-style: italic;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2.5rem 0;
}

/* Lists */
ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.35rem;
  color: var(--color-text-secondary);
}

li > ul, li > ol {
  margin-top: 0.35rem;
  margin-bottom: 0;
}

/* Inline code */
code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85em;
  background: var(--color-code-inline-bg);
  color: var(--color-code-inline-text);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-variant-ligatures: none;
}

/* Code blocks — override inline style */
pre {
  margin-bottom: 1.5rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  position: relative;
}

pre code {
  display: block;
  background: var(--color-code-bg);
  color: var(--color-code-text);
  padding: 1.25rem 1.5rem;
  font-size: 0.82rem;
  line-height: 1.7;
  border-radius: var(--radius-md);
  overflow-x: auto;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

/* Blockquotes */
blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--color-bg-secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

blockquote p {
  margin-bottom: 0;
}

/* Selection */
::selection {
  background: var(--color-accent-subtle);
  color: var(--color-text);
}