/* === BASE STYLES === */
/* v2: "Illustrated Workshop" - Core resets, typography, and layout primitives */
/* Colors now defined in colors.css (light mode default) */

:root {
  /* === TYPOGRAPHY === */
  /* Fraunces: Quirky serifs for headlines (warmth, character) */
  /* Inter: Clean sans for body (readable, professional) */
  /* JetBrains Mono: Modern mono for code/stats (friendly, technical) */
  --font-display: 'Fraunces', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  /* Legacy alias for compatibility */
  --font-serif: var(--font-display);

  /* === SPACING === */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* === TRANSITIONS === */
  --transition-fast: 150ms ease-out;
  --transition-normal: 300ms ease-out;
  --transition-slow: 500ms ease-out;

  /* Motion with slight snap at end (feels like placing something) */
  --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}


/* === RESETS === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

/* === TYPOGRAPHY === */
/*
 * v2 Headline Font System
 * -----------------------
 * Fraunces for all headlines - quirky serifs that feel warm and approachable
 * while maintaining credibility. Variable optical sizing adjusts weight
 * automatically for different sizes.
 *
 * The warmth comes from the typeface itself now, not serif vs sans distinction.
 */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin-top: var(--spacing-xl);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
}

h4 {
  font-size: 1.125rem;
}

h5 {
  font-size: 1rem;
}

h6 {
  font-size: 0.875rem;
  font-family: var(--font-mono);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
}

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

p + p {
  margin-top: var(--spacing-md);
}

small {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* === LINKS === */
a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

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

a:active {
  opacity: 0.7;
}

/* === LISTS === */
ul, ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

li {
  margin-bottom: var(--spacing-sm);
}

/* === CODE === */
code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--bg-secondary);
  padding: 0.2em 0.5em;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
}

pre {
  background-color: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--spacing-lg);
  font-size: 0.875rem;
  line-height: 1.5;
  border: 1px solid var(--border-light);
}

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

/* === BLOCKQUOTES === */
blockquote {
  border-left: 4px solid var(--accent);
  padding-left: var(--spacing-lg);
  margin-left: 0;
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
  font-style: italic;
}

/* === IMAGES === */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* === BUTTONS === */
/* Base button styles - brutalist, no shadows or lifts */
button, [type="button"], [type="submit"], [type="reset"] {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.875rem 1.5rem;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.15s ease;
}

button:hover, [type="button"]:hover, [type="submit"]:hover {
  border-color: var(--accent, var(--green));
  color: var(--accent, var(--green));
}

/* === CTA BUTTONS === */
/* Primary: Solid background */
.cta-btn,
.cta-primary,
a.cta-btn,
a.cta-primary,
button.cta-btn,
button.cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.875rem 1.5rem;
  background: var(--text-primary, #e8e8e8);
  color: var(--bg-primary, #0a0a0a);
  border: none;
  border-radius: 2px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.cta-btn:hover,
.cta-primary:hover,
a.cta-btn:hover,
a.cta-primary:hover,
button.cta-btn:hover,
button.cta-primary:hover {
  background: var(--accent, var(--green));
  color: var(--bg-primary, #0a0a0a);
  text-decoration: none;
}

/* Secondary: Border only */
.cta-secondary,
a.cta-secondary,
button.cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.875rem 1.5rem;
  background: transparent;
  color: var(--text-secondary, #888888);
  border: 1px solid var(--border-color, #333333);
  border-radius: 2px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.cta-secondary:hover,
a.cta-secondary:hover,
button.cta-secondary:hover {
  border-color: var(--accent, var(--green));
  color: var(--text-primary, #e8e8e8);
  text-decoration: none;
}

/* Arrow animation for buttons with arrows */
.cta-btn span,
.cta-primary span,
.cta-secondary span {
  transition: transform 0.15s ease;
}

.cta-btn:hover span,
.cta-primary:hover span,
.cta-secondary:hover span {
  transform: translateX(4px);
}

/* Legacy aliases */
.cta-link { /* inherits from cta-btn */ }
a.cta-link,
button.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.875rem 1.5rem;
  background: var(--text-primary, #e8e8e8);
  color: var(--bg-primary, #0a0a0a);
  border: none;
  border-radius: 2px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

a.cta-link:hover,
button.cta-link:hover {
  background: var(--accent, var(--green));
  color: var(--bg-primary, #0a0a0a);
  text-decoration: none;
}

a.cta-link span,
button.cta-link span {
  transition: transform 0.15s ease;
}

a.cta-link:hover span,
button.cta-link:hover span {
  transform: translateX(4px);
}

/* === LAYOUT === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-sm {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* === UTILITY CLASSES === */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-color, var(--accent));
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 100;
}

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

/* === SKIP ANIMATIONS ON REVISIT === */
/* When user has already visited this page in the session, skip entrance animations */
/* Only target elements with finite animations (not infinite decorative ones) */
html.revisit *:not([class*="terminal"]):not([class*="cursor"]):not([class*="pulse"]):not([class*="status-dot"]):not(.signal-line):not(.live-dot):not(.typing-indicator):not(.typing-indicator *):not(.crab-icon) {
  animation-delay: 0s !important;
  animation-duration: 0.01s !important;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  body {
    font-size: 15px;
  }
}