/* papyrai-ui Global Styles */

/* ==================== CSS Reset ==================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font-serif);
  background-color: var(--paper-white);
  color: var(--ink-black);
  line-height: 1.6;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Dark theme body */
[data-theme="dark"] body {
  background-color: var(--paper-black);
  color: var(--ink-light);
}

/* ==================== Typography ==================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 var(--spacing-md);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
  margin: 0 0 var(--spacing-md);
}

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

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

/* Handwritten headings */
.handwrite,
.handwrite h1,
.handwrite h2,
.handwrite h3,
.handwrite h4,
.handwrite h5,
.handwrite h6 {
  font-family: var(--font-handwrite);
}

/* Monospace text */
code,
pre,
.mono {
  font-family: var(--font-mono);
}

code {
  background: var(--paper-aged);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
}

pre {
  background: var(--paper-aged);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

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

/* ==================== Selection ==================== */
::selection {
  background: var(--paper-aged);
  color: var(--ink-black);
}

[data-theme="dark"] ::selection {
  background: var(--ink-dark);
  color: var(--ink-light);
}

/* ==================== Scrollbar ==================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--paper-cream);
}

::-webkit-scrollbar-thumb {
  background: var(--ink-light);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--ink-mid);
}

/* ==================== Paper Texture ==================== */
.paper-texture {
  position: relative;
}

.paper-texture::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
  z-index: 0;
}

.paper-texture > * {
  position: relative;
  z-index: 1;
}

/* ==================== Paper Card ==================== */
.paper-card {
  background: var(--paper-cream);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--elevation-1);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.paper-card:hover {
  box-shadow: var(--elevation-2);
}

.paper-card-elevated {
  background: var(--paper-white);
  box-shadow: var(--elevation-2);
}

.paper-card-elevated:hover {
  box-shadow: var(--elevation-3);
  transform: translateY(-2px);
}

/* ==================== Folded Corner ==================== */
.paper-fold {
  position: relative;
}

.paper-fold::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 24px 24px 0;
  border-color: transparent var(--paper-aged) transparent transparent;
}

/* ==================== Ink Stamp ==================== */
.ink-stamp {
  display: inline-block;
  padding: 4px 12px;
  border: 2px solid currentColor;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transform: rotate(-2deg);
}

.ink-stamp-red {
  color: var(--accent-red);
}

.ink-stamp-blue {
  color: var(--accent-blue);
}

.ink-stamp-green {
  color: var(--accent-green);
}

/* ==================== Utilities ==================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }

/* ==================== Animations ==================== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.animate-fade-in {
  animation: fadeIn var(--transition-normal) ease-out;
}

.animate-slide-up {
  animation: slideUp var(--transition-normal) ease-out;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}