html, body {
  overflow: hidden !important;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

#app,
.v-application,
.v-application__wrap {
  width: 100%;
  height: 100%;
  min-height: 0 !important;
  overflow: hidden;
}

/* アプリ全体の文字設定 */
html,
body,
#app {
  font-family:
    "Noto Sans JP",
    "Hiragino Kaku Gothic ProN",
    "Hiragino Sans",
    "Yu Gothic",
    "Meiryo",
    sans-serif;

  color: #263238;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0.02em;

  /* 文字の輪郭を滑らかにする */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  /* 日本語の折り返しを改善 */
  overflow-wrap: break-word;
  word-break: normal;
  line-break: strict;
  text-rendering: optimizeLegibility;
}

/* 見出し */
h1,
h2,
h3,
h4,
h5,
h6 {
  color: #1f2937;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.025em;
  margin-bottom: 0.6em;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.6rem;
}

h3 {
  font-size: 1.3rem;
}

/* 本文 */
p {
  margin: 0 0 1em;
  line-height: 1.8;
}

/* 補足・説明文字 */
.text-caption,
.help-text {
  color: #64748b;
  font-size: 0.875rem;
  line-height: 1.6;
}

/* 入力項目のラベル */
.form-label {
  color: #374151;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* ボタン文字 */
button,
.v-btn {
  font-family: inherit;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: none;
}

/* 入力欄 */
input,
textarea,
select,
.v-field {
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.5;
}

/* テーブル */
table,
.v-data-table {
  font-size: 0.925rem;
  line-height: 1.6;
}

th,
.v-data-table-header__content {
  color: #475569;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* リンク */
a {
  color: #1565c0;
  text-decoration: none;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration: underline;
}

/* 選択中の文字 */
::selection {
  color: #172554;
  background-color: #dbeafe;
}

/* スマートフォン */
@media (max-width: 600px) {
  html,
  body,
  #app {
    font-size: 15px;
    line-height: 1.65;
  }

  h1 {
    font-size: 1.65rem;
  }

  h2 {
    font-size: 1.4rem;
  }
}