/* Andrey UI Foundation v1.0 — shared visual tokens and accessible defaults. */

:root {
  --color-canvas: #faf9f6;
  --color-surface: #ffffff;
  --color-surface-soft: #eef6f2;
  --color-ink: #17201d;
  --color-muted: #5f6b66;
  --color-border: #dde3df;
  --color-primary: #0b5c49;
  --color-primary-soft: #99f0d0;
  --color-warm: #8a5636;

  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-editorial: "Source Serif 4", Georgia, serif;

  --text-xs: .75rem;
  --text-sm: .875rem;
  --text-base: 1rem;
  --text-md: 1.125rem;
  --text-lg: 1.375rem;
  --text-xl: 1.75rem;
  --text-2xl: clamp(2rem, 3vw, 2.75rem);
  --text-3xl: clamp(2.75rem, 5vw, 4rem);

  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-pill: 999px;
  --layout-container: 1120px;
  --layout-gutter: 32px;
  --focus-ring: 0 0 0 3px rgba(11, 92, 73, .28);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-sans);
  line-height: 1.6;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--color-ink);
  font-family: var(--font-sans);
  letter-spacing: -.035em;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  box-shadow: var(--focus-ring);
}

.container {
  width: min(calc(100% - var(--layout-gutter)), var(--layout-container));
  margin-inline: auto;
}

.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;
}

.skip-link {
  position: absolute;
  z-index: 100;
  top: 0;
  left: 1rem;
  padding: .65rem .9rem;
  background: var(--color-primary);
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 700;
  transform: translateY(-150%);
}

.skip-link:focus-visible {
  transform: translateY(.75rem);
}

@media (max-width: 720px) {
  :root {
    --layout-gutter: 24px;
  }

  body {
    font-size: 1.0625rem;
  }
}