/* Shared design tokens and element defaults for Two-Flat Studio pages and the demo. */

:root {
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --text: 1.125rem;
  --leading: 1.6;
  --measure: 68ch;
  --ink: #1b1f24;
  --ink-soft: #4a525c;
  --paper: #fbfaf7;
  --paper-deep: #f1eee7;
  --rule: #8a8f96;
  --accent: #9a3412;
  --accent-ink: #ffffff;
  --accent-dark: #7c2d12;
  --focus: #1d4ed8;
  --radius: 6px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --tap: 48px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: var(--text);
  line-height: var(--leading);
  color: var(--ink);
  background: var(--paper);
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  line-height: 1.25;
  margin: var(--space-4) 0 var(--space-2);
  text-wrap: balance;
}

h1 {
  font-size: clamp(1.75rem, 1.2rem + 2.6vw, 2.75rem);
  margin-top: 0;
}

h2 {
  font-size: clamp(1.375rem, 1.1rem + 1.2vw, 1.75rem);
}

h3 {
  font-size: 1.25rem;
}

p,
ul,
ol,
dl {
  margin: 0 0 var(--space-2);
  max-width: var(--measure);
}

li + li {
  margin-top: var(--space-1);
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent-dark);
  text-decoration-thickness: 2px;
}

code,
pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

img,
svg {
  max-width: 100%;
  height: auto;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: var(--space-1);
  top: -10rem;
  z-index: 10;
  padding: var(--space-1) var(--space-2);
  min-height: var(--tap);
  display: inline-flex;
  align-items: center;
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--ink);
}

.skip:focus,
.skip:focus-visible {
  top: var(--space-1);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap);
  min-width: var(--tap);
  padding: 0.6rem 1.25rem;
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.btn:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: var(--accent-ink);
}

.btn-secondary {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--ink);
}

.btn-secondary:hover {
  background: var(--paper-deep);
  border-color: var(--ink);
  color: var(--ink);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}