/* ======================================================
   LearnO 機能ページ CSS
   - コンポーネント別に整理
   - コメントはコードの内容説明に統一（マージ履歴は削除）
   ====================================================== */

/* === ベース: 変数・ドキュメント設定 === */
html {
  scroll-behavior: smooth;
}

:root {
  --color-primary: #D7B98E;
  --color-secondary: #86C166;
  --color-primary-light: #fdfaf5;
  --color-secondary-light: #f3f9f1;
  --color-secondary-table-bg: #f9fbf8;
  --color-secondary-th-bg: #dee9da;
  --color-secondary-th-bd: #d0dbcd;
  --color-secondary-td-bd: #e7eee5;
  --color-text: #3B403B;
  --color-border-light: #E0E0E0;
  --color-border-tint: #E8E5DB;
  --color-card-bg-alt: #FAF9F5;
}

/* === 見出し・レイアウト（共通） === */
h2 {
  font-size: 1.75rem;
  font-weight: 700;
  text-align: center;
  color: var(--color-text);
}

h3 {
  color: var(--color-text);
  text-align: left;
  margin: 0 0 1em;
  padding-top: 2em;
}

h3 span {
  font-size: 14px;
  padding-left: 36px;
}

h4 {
  font-size: 1rem;
  margin: 0 0 .4em;
}

.section,
.func-tabs {
  max-width: 1080px;
  margin: auto;
  padding: 0 1em;
}

.section {
  margin-bottom: 2rem;
}

.func-tabs {
  margin-bottom: 4rem;
  position: relative;
}

/* --------------------------------
   ヒーロー：.box-function-pickup
   背景・装飾・機能アイコングリッド
-------------------------------- */
.box-function-pickup {
  background-image: url(../images/bg-function-pickup.png) !important;
  background-size: contain !important;
  background-repeat: repeat !important;
  color: #3B403B;
  position: relative;
  /* 装飾の位置基準 */
}

.box-function-pickup .bgShape {
  position: absolute;
  top: 100px;
  right: 0;
  max-width: 960px;
  width: 60%;
  z-index: 0;
}

.box-function-pickup .bgDeco {
  position: absolute;
  width: 160px;
  bottom: 5%;
}

.box-function-pickup .bgDeco.left {
  left: 5%;
}

.box-function-pickup .bgDeco.right {
  right: 5%;
}

.box-function-pickup .box-inner {
  position: relative;
  z-index: 2;
}

.box-function-pickup h1 {
  text-shadow: none;
  font-size: 1.75rem;
  color: #3B403B;
  margin-top: 2em !important;
  margin-bottom: 1.5em !important;
}

.box-function-pickup .box-inner ul {
  display: flex;
  flex-wrap: wrap;
  margin-inline: auto;
  justify-content: center;
  gap: 2%;
  padding-bottom: 32px;
  max-width: 96%;
}

.box-function-pickup .box-inner ul li {
  font-weight: bold;
  padding: 0 0 2.5em;
  text-align: center;
  width: calc((100% - 2%*3)/4);
}

.box-function-pickup .box-inner .imgArea {
  display: block;
  position: relative;
  z-index: 2;
  margin-inline: auto;
  margin-bottom: -8px;
  aspect-ratio: 16/9;
  background-repeat: no-repeat;
  background-position: center bottom;
  background-image: url(../images/icon-function-01.svg);
  background-size: auto 96%;
  width: 70%;
}

/* アイコン差し替え */
.box-function-pickup .box-inner ul li:nth-of-type(2) .imgArea {
  background-image: url(../images/icon-function-02.svg);
  background-size: auto 100%;
}

.box-function-pickup .box-inner ul li:nth-of-type(3) .imgArea {
  background-image: url(../images/icon-function-03.svg);
  background-size: auto 92%;
}

.box-function-pickup .box-inner ul li:nth-of-type(4) .imgArea {
  background-image: url(../images/icon-function-04.svg);
  background-size: auto 92%;
}

.box-function-pickup .box-inner ul li:nth-of-type(5) .imgArea {
  background-image: url(../images/icon-function-05.svg);
}

.box-function-pickup .box-inner ul li:nth-of-type(6) .imgArea {
  background-image: url(../images/icon-function-06.svg);
}

.box-function-pickup .box-inner ul li:nth-of-type(7) .imgArea {
  background-image: url(../images/icon-function-07.svg);
}

.box-function-pickup .box-inner ul li:nth-of-type(8) .imgArea {
  background-image: url(../images/icon-function-08.svg);
}

.box-function-pickup .box-inner ul li h6 {
  width: 100%;
  background-color: #fff;
  border-radius: 50vh;
  font-size: .95rem;
  height: 80px;
  padding-inline: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1.5;
}

/* 機能一覧直前の見出し（:has 対応ブラウザで有効） */
.box-inner:has(.box-function-list) h2 {
  font-size: 1.75rem;
  color: #3B403B;
  margin-bottom: 1.75rem;
}

/* --------------------------------
   機能カード：.box-function-list
-------------------------------- */
.box-function-list ul {
  display: flex;
  flex-wrap: wrap;
  gap: 28px 2%;
  color: #3B403B;
  justify-content: flex-start;
  margin-bottom: 64px;
}

.box-function-list ul li {
  border-radius: 20px;
  border: 1px solid var(--color-border-light);
  background: #FFF;
  box-shadow: 0 4px 4px rgba(150, 150, 150, .25);
  width: calc((100% - 2%*3)/4);
  padding: 20px 4px 12px;
  transition: transform .2s ease;
}

.box-function-list ul li:hover {
  cursor: pointer;
  transform: translateY(-4px);
}

.box-function-list ul li .icon {
  vertical-align: bottom;
  border-radius: 0;
  margin-bottom: 8px;
}

.box-function-list ul li p {
  line-height: 1.1;
}

.box-function-list ul li p span {
  line-height: 1;
  font-size: 14px;
}

/* 配色バリエーション */
.box-function-list ul li:nth-of-type(2),
.box-function-list ul li:nth-of-type(4),
.box-function-list ul li:nth-of-type(5),
.box-function-list ul li:nth-of-type(7),
.box-function-list ul li:nth-of-type(10),
.box-function-list ul li:nth-of-type(12),
.box-function-list ul li:nth-of-type(13) {
  background-color: var(--color-card-bg-alt);
  border-color: var(--color-border-tint);
}

/* --------------------------------
   テーブル／説明ブロック
-------------------------------- */
.list-item {
  background-color: var(--color-secondary-table-bg);
  border-left: 4px solid var(--color-secondary);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .03);
  color: var(--color-text);
}

.list-item p {
  margin: 0 0 1em;
  font-size: .95rem;
  line-height: 1.6;
  color: #555;
}

.list-item table {
  width: 100%;
  border-collapse: collapse;
  background-color: #fff;
  border-radius: 8px;
  overflow: hidden;
  font-size: .9rem;
  margin: 0 auto 1em;
}

.list-item th,
.list-item td {
  padding: 1rem;
  text-align: left;
  vertical-align: top;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-secondary-td-bd);
}

.list-item tr:last-child th,
.list-item tr:last-child td {
  border-bottom: none;
}

.list-item th {
  width: 20%;
  font-weight: 600;
  background-color: var(--color-secondary-th-bg);
  border-bottom: 1px solid var(--color-secondary-th-bd);
}

.list-item td {
  font-weight: 400;
  font-size: .9rem;
  border-right: none;
}

.list-item table+h4 {
  margin: 1.2em 0 .4em;
}

ul {
  margin: .5rem 0 0 1rem;
}

.demo-link {
  display: flex;
  justify-content: space-between;
}

.demo-link .btn {
  width: fit-content;
  padding: 0 1rem;
  font-size: .875rem;
  margin-top: -1rem;
}

#u-mypage .demo-link .btn,
#analytics .demo-link .btn {
  margin: 0 0 .4rem;
}

/* --------------------------------
   目次メニュー／タブ UI
-------------------------------- */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  padding: 0 0 1rem;
}

.menu-item {
  background-color: #fff;
  border: 1px solid var(--color-secondary);
  padding: .75rem;
  text-align: center;
  font-size: .9rem;
  font-weight: 700;
  color: var(--color-secondary);
  transition: background-color .2s, box-shadow .2s, transform .1s;
  cursor: pointer;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  border-radius: var(--radius);
  min-height: 64px;
}

.menu-item:first-child {
  border-left: 1px solid var(--color-secondary);
  border-radius: 1em 0 0 1em;
}

.menu-item:last-child {
  border-left: 1px solid var(--color-secondary);
  border-radius: 0 1em 1em 0;
}

.section.is-stuck .menu-grid .menu-item:first-child {
  border-radius: 0 0 0 1em;
}

.section.is-stuck .menu-grid .menu-item:last-child {
  border-radius: 0 0 1em 0;
}

.menu-item i {
  font-size: 1.125rem;
}

.menu-item:hover {
  background-color: var(--color-secondary-light);
}

.menu-item:hover i {
  animation: bounce .6s;
}

.func-tabs__nav {
  position: sticky;
  top: 100px;
  z-index: 3;
  background-color: #fff;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: 16px auto 0;
  padding: 16px 8px 0;
}

.func-tabs__btn {
  appearance: none;
  border: none;
  border-bottom: 6px solid var(--color-secondary);
  background: #fff;
  color: var(--color-secondary);
  padding: 8px 16px;
  border-radius: 16px 16px 0 0;
  font-weight: 700;
  font-size: 1.125rem;
  cursor: pointer;
}

.func-tabs__btn:hover {
  color: #56a57d;
}

.func-tabs__btn.is-active {
  color: #ff8400;
  border-bottom-color: #ff8400;
}

.func-tabs__panel[hidden] {
  display: none;
}

.func-tabs__panel.is-active {
  display: block;
}

.func-tabs__intro {
  text-align: center;
}

.func-tabs__intro span {
  background: linear-gradient(transparent 50%, #ffeb99 50%);
  font-weight: 600;
  line-height: 1.6;
  /* 蛍光ペン風 */
}

.func-tabs__panel {
  position: relative;
}

.func-tabs__panel.is-active>.section {
  scroll-margin-top: 240px;
}

.func-tabs__panel>.section:has(.menu-grid) {
  position: sticky;
  top: 170px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, .3);
  margin-top: 16px;
  border-radius: 0 0 1rem 1rem;
}

/* --------------------------------
   モーダル（共通）
-------------------------------- */
.modalArea {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100vh;
  display: none;
  z-index: 10;
}

.modal__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, .5);
  z-index: -1;
  cursor: pointer;
}

.functionModal {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 70%;
  max-width: 1000px;
  height: max-content;
  background: #fff;
  border-radius: 24px;
  text-align: center;
  overflow-y: auto;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.modal_icon {
  height: 67px;
  margin-top: 45px;
}

.functionModal h4 {
  text-align: center;
  background-color: #F4F9F0;
  margin-bottom: 16px;
  color: #545954;
  padding: 0 20px;
  font-size: clamp(.1rem, calc(.7vw + 1rem), 1.5rem);
}

.modal_container {
  width: 85%;
  margin-inline: auto;
  height: auto;
}

.modal_image_container {
  width: 100%;
  margin-inline: auto;
  display: flex;
  justify-content: center;
  gap: 20px;
}

.modal_image {
  width: 48.7%;
  height: 100%;
  object-position: 0 0 10 0;
  border: 1px solid var(--color-secondary);
  border-radius: 4px;
}

.numerous {
  flex-wrap: wrap;
}

.numerous .modal_image {
  width: 24.7%;
}

.functionModal p {
  width: 95%;
  margin: 17px auto 0;
  text-align: left;
  line-height: 24px;
  font-size: clamp(.5rem, calc(1vw + .5rem), 1rem);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.modal_close {
  margin-bottom: 36px;
}

.modal_close a {
  color: #545954;
  border-bottom: 1px solid #545954;
}

/* --------------------------------
   アニメーション
-------------------------------- */
@keyframes bounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-6px);
  }
}

/* --------------------------------
   レスポンシブ
-------------------------------- */
@media (max-width: 1200px) {
  .box-function-pickup .bgShape {
    top: 75px;
  }
}

@media (max-width: 1020px) {
  .box-function-list ul {
    gap: 28px 2%;
    max-width: 800px;
  }

  .box-function-list ul li {
    width: calc((100% - 2%*2)/3);
    padding: 20px 4px 12px;
  }

  .box-function-list ul li:nth-of-type(odd) {
    background-color: #fff;
    border-color: var(--color-border-light);
  }

  .box-function-list ul li:nth-of-type(even) {
    background-color: var(--color-card-bg-alt);
    border-color: var(--color-border-tint);
  }
}

@media (max-width: 820px) {
  .func-tabs {
    padding: 0;
  }

  .func-tabs__nav {
    top: 76px;
  }

  .menu-grid {
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  }

  .menu-item {
    font-size: .75rem;
    padding: .75rem 0;
  }

  .func-tabs__panel>.section:has(.menu-grid) {
    top: 146px;
  }

  .section h3 {
    padding-top: 0;
  }
}

@media (max-width: 620px) {
  .functionModal {
    width: 96%;
  }

  .modal_icon {
    margin-top: 24px;
  }

  .modal_close {
    margin-bottom: 16px;
  }

  /* ヒーロー内の機能アイコン：2列 */
  .box-function-pickup .box-inner ul {
    max-width: 420px;
    gap: 4%;
  }

  .box-function-pickup .box-inner ul li {
    width: calc((100% - 4%*1)/2);
  }

  .box-function-pickup .box-inner ul li h6 br {
    display: none;
  }

  /* 機能カード：2列＆余白調整 */
  .box-function-list ul {
    gap: 28px 16px;
    max-width: 420px;
  }

  .box-function-list ul li {
    width: calc((100% - 16px)/2);
    padding: 20px 4px 12px;
  }

  .box-function-list ul li:nth-of-type(odd),
  .box-function-list ul li:nth-of-type(even) {
    background-color: #fff;
    border-color: var(--color-border-light);
  }

  .box-function-list ul li:nth-of-type(2),
  .box-function-list ul li:nth-of-type(3),
  .box-function-list ul li:nth-of-type(6),
  .box-function-list ul li:nth-of-type(7),
  .box-function-list ul li:nth-of-type(10),
  .box-function-list ul li:nth-of-type(11),
  .box-function-list ul li:nth-of-type(14) {
    background-color: var(--color-card-bg-alt);
    border-color: var(--color-border-tint);
  }

  /* モバイル時のみ：単一画像を全幅 */
  .modal_image.single {
    width: 100%;
  }
}

@media (max-width: 440px) {

  .func-tabs,
  .section {
    padding: 0;
  }

  .menu-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 0;
  }

  .func-tabs__panel>.section:has(.menu-grid) {
    position: relative;
    background-color: #fff;
    top: 0;
    margin-bottom: 1rem;
  }

  .menu-item {
    border-radius: 1rem !important;
    font-size: .75rem;
    padding: .75rem .25rem;
  }

  .menu-item i {
    font-size: 1.2rem;
  }

  .func-tabs__nav {
    padding: 16px 0;
    border-bottom: none;
    margin-top: 0;
  }

  .func-tabs__btn {
    border-radius: 0;
    font-size: .875rem;
		padding:1rem 0
  }

  .func-tabs__intro {
    margin-bottom: 2rem;
  }

  h3>span {
    display: block;
    padding-left: 0;
  }

  h3 {
    padding-top: 0;
  }

  .list-item {
    padding: 1rem;
  }

  .list-item th,
  .list-item td {
    width: 100%;
    display: block;
  }

  .demo-link,
  .demo-link span {
    display: block;
  }

  .demo-link .btn,
  #u-mypage .demo-link .btn,
  #analytics .demo-link .btn {
    margin: .4rem 0;
  }

  h2 {
    margin-bottom: 0;
  }

  .box-inner:has(.box-function-list) h2 {
    margin-bottom: 1rem;
  }
}