/* ponytail: Minimalist Monochrome — tokens, textures, base only. Layout via Tailwind utilities. */
:root {
  --ink: #000000;
  --paper: #ffffff;
  --muted: #f5f5f5;
  --muted-fg: #525252;
  --line: #e5e5e5;
  --font-display: "Playfair Display", Georgia, serif;
  --font-serif: "Source Serif 4", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

html {
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--ink);
  color: var(--paper);
}

a {
  color: inherit;
}

/* Global paper texture — fixed layer behind all content, never affects text opacity */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 220px 220px;
  opacity: 0.025;
  pointer-events: none;
  z-index: 0;
}
body > * {
  position: relative;
  z-index: 1;
}

/* Required textures (design system) — prevent flat design, near-invisible */
.tx-lines {
  background-image: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 1px,
    #000 1px,
    #000 2px
  );
  background-size: 100% 4px;
}
.tx-grid {
  background-image: linear-gradient(#00000008 1px, transparent 1px),
    linear-gradient(90deg, #00000008 1px, transparent 1px);
  background-size: 40px 40px;
}
.tx-noise {
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.tx-invert-lines {
  background-image: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 1px,
    #fff 1px,
    #fff 2px
  );
  background-size: 4px 100%;
}

/* Visible focus for keyboard, none for mouse */
:focus {
  outline: none;
}
:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}