/*
 * Bootstrap 5 で廃止されたクラスのうち、既存の画面・独自 CSS・JS が頼っているものを Bootstrap 4 のルールのまま残す（#109）。
 * 対象: form-group、form-inline、custom-control 系（チェックボックス・ラジオ・スイッチ）、custom-file 系、
 * DB に保存した本文の HTML（レッスンメモ・TalkLesson・規約）に入っている font-weight-bold・text-left（HtmlContentSanitizer が通すクラス）、
 * Contract/ServiceContractConfirm の pre-scrollable。
 * 新しく書く画面では 5 系の書き方（mb-3、グリッド、form-check、<input type="file" class="form-control">、fw-bold、text-start）を使う。
 * 下のルールは Bootstrap 4 の CSS から写した（MIT License, Copyright (c) 2011-2021 The Bootstrap Authors / Twitter, Inc.）。
 * 写したものと違うのは 1 箇所だけ: .form-inline の中のセレクトは 5 系で form-select になったので、custom-select の行を form-select にした。
 */

/* リンクに下線を付けない（4 系と同じ見た目。5 系は a と .btn-link に下線を付ける） */
a,
.btn-link {
  text-decoration: none;
}

/*
 * 表の罫線。5 系は行とセルに border-width だけを付け、border-style: solid は reboot に任せている。
 * styles_v2.css の先頭のリセット（table・tr・th・td などに border:0）がそれを消すので、ここで戻す。
 * リセット自体は変えない（本文の HTML の <table border="1"> の見え方が変わるため）。
 */
.table > :not(caption) > *,
.table > :not(caption) > * > *,
.table-bordered > :not(caption) > *,
.table-bordered > :not(caption) > * > * {
  border-style: solid;
}

/* DB に保存した本文の HTML が使っている（HtmlContentSanitizer の AllowedClasses） */
.font-weight-bold {
  font-weight: 700 !important;
}

.text-left {
  text-align: left !important;
}

/* 契約内容の確認画面で、本文の枠の高さを抑えてスクロールさせる */
.pre-scrollable {
  max-height: 340px;
  overflow-y: scroll;
}

.form-group {
  margin-bottom: 1rem;
}

.form-inline {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-flow: row wrap;
  flex-flow: row wrap;
  -ms-flex-align: center;
  align-items: center;
}

.form-inline .form-check {
  width: 100%;
}

@media (min-width: 576px) {
  .form-inline label {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: center;
    justify-content: center;
    margin-bottom: 0;
  }
  .form-inline .form-group {
    display: -ms-flexbox;
    display: flex;
    -ms-flex: 0 0 auto;
    flex: 0 0 auto;
    -ms-flex-flow: row wrap;
    flex-flow: row wrap;
    -ms-flex-align: center;
    align-items: center;
    margin-bottom: 0;
  }
  .form-inline .form-control {
    display: inline-block;
    width: auto;
    vertical-align: middle;
  }
  .form-inline .form-control-plaintext {
    display: inline-block;
  }
  .form-inline .input-group,
  .form-inline .form-select {
    width: auto;
  }
  .form-inline .form-check {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: center;
    justify-content: center;
    width: auto;
    padding-left: 0;
  }
  .form-inline .form-check-input {
    position: relative;
    -ms-flex-negative: 0;
    flex-shrink: 0;
    margin-top: 0;
    margin-right: 0.25rem;
    margin-left: 0;
  }
  .form-inline .custom-control {
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: center;
    justify-content: center;
  }
  .form-inline .custom-control-label {
    margin-bottom: 0;
  }
}

.custom-control {
  position: relative;
  z-index: 1;
  display: block;
  min-height: 1.5rem;
  padding-left: 1.5rem;
  -webkit-print-color-adjust: exact;
  color-adjust: exact;
}

.custom-control-inline {
  display: -ms-inline-flexbox;
  display: inline-flex;
  margin-right: 1rem;
}

.custom-control-input {
  position: absolute;
  left: 0;
  z-index: -1;
  width: 1rem;
  height: 1.25rem;
  opacity: 0;
}

.custom-control-input:checked ~ .custom-control-label::before {
  color: #fff;
  border-color: #007bff;
  background-color: #007bff;
}

.custom-control-input:focus ~ .custom-control-label::before {
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.custom-control-input:focus:not(:checked) ~ .custom-control-label::before {
  border-color: #80bdff;
}

.custom-control-input:not(:disabled):active ~ .custom-control-label::before {
  color: #fff;
  background-color: #b3d7ff;
  border-color: #b3d7ff;
}

.custom-control-input[disabled] ~ .custom-control-label, .custom-control-input:disabled ~ .custom-control-label {
  color: #6c757d;
}

.custom-control-input[disabled] ~ .custom-control-label::before, .custom-control-input:disabled ~ .custom-control-label::before {
  background-color: #e9ecef;
}

.custom-control-label {
  position: relative;
  margin-bottom: 0;
  vertical-align: top;
}

.custom-control-label::before {
  position: absolute;
  top: 0.25rem;
  left: -1.5rem;
  display: block;
  width: 1rem;
  height: 1rem;
  pointer-events: none;
  content: "";
  background-color: #fff;
  border: #adb5bd solid 1px;
}

.custom-control-label::after {
  position: absolute;
  top: 0.25rem;
  left: -1.5rem;
  display: block;
  width: 1rem;
  height: 1rem;
  content: "";
  background: 50% / 50% 50% no-repeat;
}

.custom-checkbox .custom-control-label::before {
  border-radius: 0.25rem;
}

.custom-checkbox .custom-control-input:checked ~ .custom-control-label::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8'%3e%3cpath fill='%23fff' d='M6.564.75l-3.59 3.612-1.538-1.55L0 4.26l2.974 2.99L8 2.193z'/%3e%3c/svg%3e");
}

.custom-checkbox .custom-control-input:indeterminate ~ .custom-control-label::before {
  border-color: #007bff;
  background-color: #007bff;
}

.custom-checkbox .custom-control-input:indeterminate ~ .custom-control-label::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4' viewBox='0 0 4 4'%3e%3cpath stroke='%23fff' d='M0 2h4'/%3e%3c/svg%3e");
}

.custom-checkbox .custom-control-input:disabled:checked ~ .custom-control-label::before {
  background-color: rgba(0, 123, 255, 0.5);
}

.custom-checkbox .custom-control-input:disabled:indeterminate ~ .custom-control-label::before {
  background-color: rgba(0, 123, 255, 0.5);
}

.custom-radio .custom-control-label::before {
  border-radius: 50%;
}

.custom-radio .custom-control-input:checked ~ .custom-control-label::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23fff'/%3e%3c/svg%3e");
}

.custom-radio .custom-control-input:disabled:checked ~ .custom-control-label::before {
  background-color: rgba(0, 123, 255, 0.5);
}

.custom-switch {
  padding-left: 2.25rem;
}

.custom-switch .custom-control-label::before {
  left: -2.25rem;
  width: 1.75rem;
  pointer-events: all;
  border-radius: 0.5rem;
}

.custom-switch .custom-control-label::after {
  top: calc(0.25rem + 2px);
  left: calc(-2.25rem + 2px);
  width: calc(1rem - 4px);
  height: calc(1rem - 4px);
  background-color: #adb5bd;
  border-radius: 0.5rem;
  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out, -webkit-transform 0.15s ease-in-out;
  transition: transform 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  transition: transform 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out, -webkit-transform 0.15s ease-in-out;
}

.custom-switch .custom-control-input:checked ~ .custom-control-label::after {
  background-color: #fff;
  -webkit-transform: translateX(0.75rem);
  transform: translateX(0.75rem);
}

.custom-switch .custom-control-input:disabled:checked ~ .custom-control-label::before {
  background-color: rgba(0, 123, 255, 0.5);
}

@media (prefers-reduced-motion: reduce) {
  .custom-switch .custom-control-label::after {
    transition: none;
  }
}

.custom-file {
  position: relative;
  display: inline-block;
  width: 100%;
  height: calc(1.5em + 0.75rem + 2px);
  margin-bottom: 0;
}

.custom-file-input {
  position: relative;
  z-index: 2;
  width: 100%;
  height: calc(1.5em + 0.75rem + 2px);
  margin: 0;
  overflow: hidden;
  opacity: 0;
}

.custom-file-input:focus ~ .custom-file-label {
  border-color: #80bdff;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.custom-file-input[disabled] ~ .custom-file-label,
.custom-file-input:disabled ~ .custom-file-label {
  background-color: #e9ecef;
}

.custom-file-input:lang(en) ~ .custom-file-label::after {
  content: "Browse";
}

.custom-file-input ~ .custom-file-label[data-browse]::after {
  content: attr(data-browse);
}

.custom-file-label {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1;
  height: calc(1.5em + 0.75rem + 2px);
  padding: 0.375rem 0.75rem;
  overflow: hidden;
  font-weight: 400;
  line-height: 1.5;
  color: #495057;
  background-color: #fff;
  border: 1px solid #ced4da;
  border-radius: 0.25rem;
}

.custom-file-label::after {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 3;
  display: block;
  height: calc(1.5em + 0.75rem);
  padding: 0.375rem 0.75rem;
  line-height: 1.5;
  color: #495057;
  content: "Browse";
  background-color: #e9ecef;
  border-left: inherit;
  border-radius: 0 0.25rem 0.25rem 0;
}

.custom-control-label::before,
.custom-file-label {
  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

@media (prefers-reduced-motion: reduce) {
  .custom-control-label::before,
  .custom-file-label {
    transition: none;
  }
}