/* Global Resets & Base Typographic Layout */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Lora:ital,wght@0,400;0,500;1,400&display=swap');

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-smooth), color var(--transition-smooth), border-color var(--transition-smooth);
  padding: 0; /* Handled by header/footer padding in components */
}

/* Central Responsive Reading Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Typography Defaults - Modern Digital Clarity */
h1, h2, h3, h4 {
  font-family: var(--font-sans);
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.015em;
}

h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

h2 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--spacing-xs);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

/* Selective Serif Highlights for Academic Warmth */
.serif-highlight {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-style: italic;
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.serif-quote {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--text-muted);
  border-left: 2px solid var(--accent-color);
  padding-left: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  line-height: 1.65;
}

strong {
  font-weight: 600;
}

/* Horizontal Rules as clean spacing breaks */
hr {
  border: 0;
  border-top: 1px solid var(--border-color);
  margin: var(--spacing-xl) 0;
}

/* Media Queries for Typography */
@media (max-width: 600px) {
  html {
    font-size: 15px;
  }
  h1 {
    font-size: 1.85rem;
  }
  h2 {
    font-size: 1.25rem;
  }
  .serif-highlight {
    font-size: 1.15rem;
  }
}