@font-face {
  font-family: "Geo";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("./assets/fonts/Geo-Regular-Latin.woff2") format("woff2");
  unicode-range:
    U+0000-00FF,
    U+0131,
    U+0152-0153,
    U+02BB-02BC,
    U+02C6,
    U+02DA,
    U+02DC,
    U+0304,
    U+0308,
    U+0329,
    U+2000-206F,
    U+20AC,
    U+2122,
    U+2191,
    U+2193,
    U+2212,
    U+2215,
    U+FEFF,
    U+FFFD;
}

:root {
  --color-white: #ffffff;
  --color-black: #000000;
  --color-accent-blue: #9999ff;
  --color-accent-peach: #ffcc99;
  --color-gray-50: #f5f5f5;
  --color-gray-100: #ebebeb;
  --color-gray-200: #d9d9d9;
  --color-gray-400: #9a9a9a;
  --color-gray-700: #4f4f4f;
  --font-first: "Geo", sans-serif;
  --main-frame-border: 2px solid var(--color-black);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-accent-blue);
  color: var(--color-black);
  font-family: sans-serif;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-first);
  font-weight: 400;
}

.page {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
}

.sheet {
  width: 400px;
  padding: 24px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  box-shadow: 0 18px 60px rgba(79, 79, 79, 0.08);
}

.inner-frame {
  width: 100%;
  border: var(--main-frame-border);
  padding: 16px 12px;
  background: transparent;
}

.frame-title {
  width: 100%;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-first);
  font-size: 52px;
  line-height: 1;
  text-align: center;
}

.frame-title-word {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.frame-title-letter {
  display: block;
}

.link-grid {
  width: 100%;
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.link-button {
  width: 100%;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-black);
  background: var(--color-white);
  color: var(--color-black);
  font-family: var(--font-first);
  font-size: 22px;
  line-height: 1;
  text-align: center;
  text-decoration: none;
}

.link-button:hover,
.link-button:focus-visible {
  color: var(--color-accent-blue);
  outline: none;
}

.link-button-hidden {
  margin-top: 8px;
}

.hidden-dropdown {
  margin-top: 8px;
}

.hidden-dropdown > summary {
  list-style: none;
  cursor: pointer;
}

.hidden-dropdown > summary::-webkit-details-marker {
  display: none;
}

.hidden-panel {
  padding-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hidden-link {
  width: 100%;
}

.hidden-subdropdown {
  width: 100%;
}

.hidden-subdropdown > summary {
  list-style: none;
  cursor: pointer;
}

.hidden-subdropdown > summary::-webkit-details-marker {
  display: none;
}

.hidden-subpanel {
  padding-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hidden-sublink {
  width: 100%;
}