*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--gk-paper);
  color: var(--gk-ink);
  font-family: var(--gk-font-body);
  font-size: var(--gk-fs-body);
  font-weight: var(--gk-fw-normal);
  line-height: 1.6;
  min-height: 100vh;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

h1,
h2,
h3 {
  font-family: var(--gk-font-display);
  font-weight: var(--gk-fw-bold);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 {
  font-size: var(--gk-fs-h1);
}

h2 {
  font-size: var(--gk-fs-h2);
}

h3 {
  font-size: var(--gk-fs-h3);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--gk-transition);
}

a:hover {
  text-decoration: underline;
}

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

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

.gk-container {
  max-width: var(--gk-maxw);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gk-sp-4);
  padding-right: var(--gk-sp-4);
  width: 100%;
}

.gk-multiline {
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.7;
}

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

.gk-hide {
  display: none;
}

@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;
  }

  html {
    scroll-behavior: auto;
  }
}