/*
 * Ecosystem Typography
 * Shared font definitions and type scale
 * Usage: Link this file after colors.css
 */

/* Font imports - System fonts with web font fallbacks */
/* Note: For production, consider self-hosting fonts in brand/fonts/ */

/* Primary sans-serif: Inter (modern, readable) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* Display/Editorial: Playfair Display (elegant headings) */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@500;600;700&display=swap');

/* Monospace: JetBrains Mono (code blocks) */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Font families */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;

  /* Font sizes - Modular scale (1.25 ratio) */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  --text-6xl: 3.75rem;     /* 60px */

  /* Line heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* Font weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Letter spacing */
  --tracking-tighter: -0.05em;
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
}

/* Base typography */
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  color: var(--color-text);
  margin-top: 0;
}

h1 {
  font-size: var(--text-4xl);
  letter-spacing: var(--tracking-tight);
}

h2 {
  font-size: var(--text-3xl);
  letter-spacing: var(--tracking-tight);
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

h5 {
  font-size: var(--text-lg);
}

h6 {
  font-size: var(--text-base);
  font-weight: var(--font-medium);
}

/* Display headings (for hero sections) */
.heading-display {
  font-family: var(--font-display);
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-tight);
}

/* Paragraphs and body text */
p {
  margin-top: 0;
  margin-bottom: var(--space-4);
}

.lead {
  font-size: var(--text-xl);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
}

.small {
  font-size: var(--text-sm);
}

/* Links */
a {
  color: var(--color-accent, var(--color-primary));
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Code */
code, kbd, pre, samp {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

code {
  background-color: var(--color-bg-alt);
  padding: 0.125em 0.25em;
  border-radius: var(--radius-sm);
}

pre {
  background-color: var(--color-bg-alt);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

pre code {
  background: none;
  padding: 0;
}

/* Lists */
ul, ol {
  padding-left: var(--space-6);
  margin-bottom: var(--space-4);
}

li {
  margin-bottom: var(--space-2);
}

/* Blockquotes */
blockquote {
  border-left: 4px solid var(--color-accent, var(--color-primary));
  padding-left: var(--space-4);
  margin-left: 0;
  font-style: italic;
  color: var(--color-text-muted);
}