/* ============================================================
   紫微斗数・会員限定サイト - main.css
   ============================================================ */

/* ===== カスタムプロパティ（デザイントークン） ===== */
:root {
    --color-main: #2F2F2F;
    --color-bg: #FCFCFC;
    --color-white: #FFFFFF;
    --color-gray-100: #F0F0F0;
    --color-gray-200: #E8E8E8;
    --color-gray-300: #E2E2E2;
    --color-muted: #858585;
    --color-error: #D11F1F;
    --color-link: #2C85C9;
    --color-locked: #00668C;

    --font-main: 'Zen Old Mincho', serif;

    --header-height: 100px;
    --sidebar-width: 280px;
    --content-width: 820px;
    --content-left: 500px;
    --side-left: 120px;

    --radius-sm: 3px;
    --radius-md: 6px;

    --transition: 0.5s ease;
}

/* ===== リセット ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
    /* 横スクロールを防止し body の左寄りを解消 */
}

body {
    font-family: var(--font-main);
    color: var(--color-main);
    background: var(--color-white);
    line-height: 1.6;
    letter-spacing: 0.05em;
    -webkit-font-smoothing: antialiased;
    width: 100%;
}

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

a:hover {
    opacity: 0.7;
}

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

ul,
ol {
    list-style: none;
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ===== コンテナ ===== */
.container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ===== ヘッダー ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    height: var(--header-height);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 24px;
    max-width: 1440px;
    margin: 0 auto;
}

.site-header__logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.site-header__logo-img {
    width: 54px;
    height: 60px;
    object-fit: contain;
}

.site-header__logo-text {
    font-size: 16px;
    line-height: 1;
    white-space: nowrap;
    color: var(--color-main);
}

.site-header__nav {
    display: flex;
    align-items: center;
    gap: 40px;
}

.site-header__nav a {
    font-size: 16px;
    line-height: 1;
    white-space: nowrap;
    color: var(--color-main);
}

/* SP ハンバーガーメニュー */
.sp-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 6px;
}

.sp-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-main);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

.sp-menu-btn.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.sp-menu-btn.is-open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.sp-menu-btn.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* SP メニューオーバーレイ */
.sp-menu-overlay {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 90;
}

.sp-menu-overlay.is-open {
    display: block;
}

.sp-menu-drawer {
    position: fixed;
    top: var(--header-height);
    right: 0;
    width: 260px;
    height: calc(100vh - var(--header-height));
    background: var(--color-white);
    padding: 24px 20px;
    z-index: 95;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.sp-menu-drawer.is-open {
    transform: translateX(0);
}

.sp-menu-drawer a {
    display: block;
    padding: 14px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--color-gray-200);
}

.sp-menu-group {
    padding: 20px 0;
    border-bottom: 1px solid var(--color-gray-200);
}

.sp-menu-group .sp-menu-group__title {
    display: block;
    padding: 0;
    font-size: 16px;
    border-bottom: none;
    color: var(--color-main);
    letter-spacing: 0.02em;
}

.sp-menu-sub-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 20px;
}

.sp-menu-sub-link {
    display: block;
    font-size: 16px;
    color: var(--color-muted);
    letter-spacing: 0.02em;
    line-height: 1.5;
    border-bottom: none;
    padding: 0;
}

.sp-menu-group a.sp-menu-sub-link {
    border-bottom: none;
    padding: 0;
}

.sp-menu-sub-link--disabled {
    pointer-events: none;
    cursor: default;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.sp-menu-note {
    display: block;
    font-size: 11px;
    color: var(--color-muted);
    letter-spacing: 0.02em;
    line-height: 1.4;
}

/* ===== フッター ===== */
.site-footer {
    background: var(--color-gray-100);
    padding: 10px 20px;
    text-align: center;
}

.site-footer__copy {
    font-size: 10px;
    line-height: 1.8;
    color: var(--color-main);
}

/* ===== ページ全体のレイアウト（ヘッダー付きページ） ===== */
.page-with-header {
    padding-top: var(--header-height);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-with-header .site-footer {
    margin-top: 100px;
}

/* ===== パンくずリスト（WAI-ARIA breadcrumb） ===== */
.breadcrumbs {
    position: relative;
    z-index: 1;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0 80px;
}

.breadcrumbs__list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0;
    list-style: none;
    margin: 0;
    padding: 0;
}

.breadcrumbs__item {
    display: flex;
    align-items: center;
    font-size: 13px;
    line-height: 1.8;
    color: var(--color-muted);
}

.breadcrumbs__item a {
    color: var(--color-muted);
}

.breadcrumbs__separator {
    width: 10px;
    height: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0 5px;
}

.breadcrumbs__separator::after {
    content: '';
    display: block;
    width: 6px;
    height: 6px;
    border-top: 1px solid var(--color-muted);
    border-right: 1px solid var(--color-muted);
    transform: rotate(45deg);
}

/* ===== メインレイアウト（サイドバー + コンテンツ） =====
 * 1200px コンテンツ幅のとき gap = 100px
 * 100 / 1200 = 8.3333%
 */
.lecture-layout {
    display: flex;
    align-items: flex-start;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    gap: 10%;
    padding-bottom: 80px;
}

/* ===== サイドバー ===== */
.lecture-sidebar {
    width: 260px;
    flex-shrink: 0;
    position: sticky;
    top: calc(var(--header-height) + 20px);
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.sidebar-links {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.sidebar-links__item {
    display: block;
    padding: 6px 10px 3px;
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-main);
}

.sidebar-links__item:hover {
    opacity: 0.7;
}

.sidebar-category-list {
    border-top: 1px solid var(--color-gray-200);
    list-style: none;
}

.sidebar-category-list__item {
    border-bottom: 1px solid var(--color-gray-200);
}

.sidebar-category-list__item>a,
.sidebar-category-list__item>span,
.sidebar-category-list__link {
    display: block;
    padding: 10px;
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-main);
    transition: background var(--transition);
}

.sidebar-category-list__item>span.sidebar-category-list__link--nolink {
    color: var(--color-muted);
}

.sidebar-category-list__item>a:hover,
.sidebar-category-list__item:not(.has-children) .sidebar-category-list__link:hover {
    opacity: 0.7;
}

.sidebar-category-list__item.has-children>span {
    cursor: default;
    padding: 10px 10px;
}

.sidebar-category-list__item.has-children>span:hover {
    background: none;
}

.sidebar-category-list__item.is-current>a,
.sidebar-category-list__item.is-current>span,
.sidebar-category-list__item.is-current .sidebar-category-list__link {
    font-weight: 600;
}

/* 子カテゴリーのサブリスト（全角スペースインデント + L字接続線） */
.sidebar-sub-list {
    padding: 0 0 10px 0;
    list-style: none;
}

.sidebar-sub-list__item {
    position: relative;
}

.sidebar-sub-list__item a,
.sidebar-sub-list__item>span {
    display: flex;
    align-items: flex-start;
    padding: 4px 10px 4px 10px;
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-main);
    transition: background var(--transition);
    position: relative;
}

.sidebar-sub-list__item a:hover {
    opacity: 0.7;
}

.sidebar-sub-list__item.is-current a {
    font-weight: 600;
}

/* L字接続線（border-leftなし、border-bottomのみ） */
.sidebar-sub-list__line {
    display: inline-block;
    flex-shrink: 0;
    width: 10px;
    height: 14px;
    border-bottom: 1px solid var(--color-main);
    border-bottom: 1px solid var(--color-muted);
    margin-right: 2px;
    margin-top: 4px;
    position: absolute;
    left: 10px;
    top: 0;
}

.sidebar-sub-list__text {
    display: inline;
}

/* ===== メインコンテンツ ===== */
.lecture-main {
    flex: 1;
    min-width: 0;
    max-width: 820px;
}

/* ===== セクションタイトル（左ボーダースタイル） ===== */
.sec-ttl {
    border-left: 2px solid #d0d0d0;
    padding-left: 12px;
    font-size: 24px;
    line-height: 1.6;
    letter-spacing: 0.04em;
    color: var(--color-main);
    font-weight: normal;
    margin-bottom: 30px;
}

/* ===== ページタイトル ===== */
.page-ttl {
    margin-bottom: 100px;
}

.page-ttl__heading {
    font-size: 24px;
    line-height: 1.8;
    color: var(--color-main);
    margin-bottom: 16px;
    font-weight: normal;
}

.page-ttl__desc {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-main);
}

/* ===== 講座ホーム：講義リスト（3-beginner） ===== */
.lecture-home-section__heading {
    margin-bottom: 40px;
}

.lecture-home-section__title {
    font-size: 24px;
    line-height: 1.8;
    color: var(--color-main);
    margin-bottom: 24px;
    font-weight: normal;
}

.lecture-list {
    border-top: 1px solid var(--color-gray-200);
}

.lecture-list__item {
    border-bottom: 1px solid var(--color-gray-200);
}

.lecture-list__item-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 10px;
    background: var(--color-white);
    transition: background var(--transition);
    cursor: pointer;
}

.lecture-list__item-inner:hover {
    opacity: 0.7;
}

.lecture-list__item-inner--disabled {
    cursor: default;
    pointer-events: none;
}

.sidebar-category-list__link.is-disabled,
.sidebar-sub-list__item.is-disabled>span {
    cursor: default;
    pointer-events: none;
    color: var(--color-muted);
}

.lecture-list__item-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lecture-list__item-left::before {
    content: '';
    display: block;
    width: 6px;
    height: 6px;
    background-color: var(--color-main);
    border-radius: 50%;
    flex-shrink: 0;
}

.lecture-list__item-name {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-main);
    letter-spacing: 0.04em;
}

.lecture-list__item-name--muted {
    color: var(--color-muted);
}

/* 公開ステータスバッジ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px;
    font-size: 13px;
    line-height: 1.1;
    white-space: nowrap;
}

.badge--public {
    background: var(--color-main);
    color: var(--color-white);
}

.badge--scheduled {
    background: var(--color-gray-100);
    color: var(--color-main);
}

.lecture-list__arrow {
    width: 21px;
    height: 15px;
    flex-shrink: 0;
    display: block;
}

.lecture-list__item-inner--disabled .lecture-list__arrow {
    opacity: 0.4;
}

/* ===== カテゴリーページ：記事カードグリッド（4-beginner） ===== */
.category-page-title {
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-main);
    margin-bottom: 40px;
}

.category-page-title__text {
    font-size: 24px;
    line-height: 1.8;
    color: var(--color-main);
    font-weight: normal;
}

.lec-card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.lec-card {
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.lec-card__thumb {
    width: 100%;
    aspect-ratio: 3/2;
    object-fit: cover;
    background: var(--color-gray-100);
}

.lec-card__thumb-placeholder {
    width: 100%;
    aspect-ratio: 3/2;
    background: var(--color-gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lec-card__thumb-placeholder svg {
    width: 40px;
    height: 40px;
    opacity: 0.3;
}

.lec-card__body {
    padding: 5% 0;
}

.lec-card__title {
    font-size: 15px;
    letter-spacing: 0.02em;
    line-height: 1.5;
    color: var(--color-main);
    display: -webkit-box;
    overflow: hidden;
    font-feature-settings: "palt";
    font-weight: normal;
}

/* ===== シングルページ（5-beginner） ===== */
.single-content {
    display: flex;
    flex-direction: column;
}

.single-ttl {
    border-left: 2px solid #D0D0D0;
    margin: 0;
}

.single-ttl__text {
    font-size: 24px;
    line-height: 1.5;
    color: var(--color-main);
    font-weight: normal;
    padding-left: 12px;
}

.single-desc {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-main);
    margin-top: 20px;
}

/* PDFリンク */
.pdf-link-area {
    display: flex;
    justify-content: center;
    background: var(--color-white);
    padding: 5px;
    border-radius: var(--radius-md);
    margin: 12px 0 20px;
}

.pdf-link {
    display: block;
    font-size: 16px;
    letter-spacing: 0.02em;
    line-height: 1.6;
    color: var(--color-main);
    text-decoration: none;
    white-space: nowrap;
    transition: opacity var(--transition);
}

.pdf-link__highlight {
    color: var(--color-link);
    text-decoration: none;
}

.pdf-link:hover {
    opacity: 0.7;
}

/* 動画エリア */
.video-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 50px;
}

.video-item {
    width: 700px;
    max-width: 100%;
}

.video-item__title {
    font-size: 16px;
    line-height: 1;
    color: var(--color-main);
    text-align: center;
    margin-bottom: 20px;
}

.video-thumb-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--color-gray-100);
    overflow: hidden;
    cursor: pointer;
}

.video-thumb-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    pointer-events: none;
    transition: transform var(--transition);
}

.video-thumb-wrap:hover .play-btn {
    transform: translate(-50%, -50%) scale(1.1);
}

.play-btn svg {
    width: 100%;
    height: 100%;
}

/* ブロックエディタコンテンツ */
.entry-content {
    display: flex;
    flex-direction: column;
}

.entry-content h2 {
    font-size: 22px;
    line-height: 1.5;
    color: var(--color-main);
    border-left: 2px solid #D0D0D0;
    padding-left: 12px;
    margin: 60px 0 24px;
    font-weight: 500;
}

.entry-content h3 {
    font-size: 18px;
    line-height: 1.8;
    color: var(--color-main);
    padding-bottom: 4px;
    border-bottom: 1px solid var(--color-gray-200);
    margin-top: 50px;
}

.entry-content p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-main);
}

p.homework-section__desc {
    font-size: 15px;
}

.entry-content p + p {
    margin-top: 24px;
}

.entry-content ul {
    list-style: disc;
    padding-left: 1.5em;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.entry-content ol {
    list-style: decimal;
    padding-left: 1.5em;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.entry-content li {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-main);
}

.entry-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.entry-content figure {
    margin: 40px 0 0;
}

.entry-content figcaption {
    font-size: 13px;
    color: var(--color-muted);
    margin-top: 8px;
}

/* ===== ボタン ===== */
.btn-area {
    display: flex;
    justify-content: center;
    margin-top: 50px;
}

.btn-area--mt-lg {
    margin-top: 60px;
}

/* 空状態・エラーメッセージ */
.empty-msg {
    color: var(--color-muted);
    padding: 40px 0;
}

/* 404ページ */
.error-page {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
}

.error-page__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 90px;
    width: 550px;
    max-width: 100%;
}

.error-page__text-group {
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
}

.error-page__title {
    font-size: 30px;
    letter-spacing: 1.2px;
    color: var(--color-main);
}

.error-page__desc {
    font-size: 15px;
    letter-spacing: 0.6px;
    line-height: 1.6;
    color: var(--color-main);
}

.error-page .btn--primary {
    width: 400px;
    padding: 22px 40px;
}

/* index フォールバック */
.index-page {
    padding: 40px 40px 80px;
    max-width: 1000px;
    margin: 0 auto;
}

.index-page__title {
    font-size: 24px;
    margin-bottom: 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 22px 40px;
    border-radius: var(--radius-md);
    font-size: 16px;
    line-height: 1;
    white-space: nowrap;
    transition: opacity var(--transition), background var(--transition);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

.btn--primary {
    background: var(--color-main);
    color: var(--color-white);
    width: 500px;
}

.btn--primary:hover {
    opacity: 0.8;
    color: var(--color-white);
}

.btn--outline {
    background: var(--color-white);
    color: var(--color-main);
    border: 1px solid var(--color-main);
    width: 400px;
}

.btn--outline:hover {
    opacity: 0.7;
}

/* ===== 質問フォームエリア ===== */
.qa-section {
    margin-top: 100px;
}

.qa-section__desc {
    font-size: 15px;
    color: var(--color-main);
    margin-bottom: 30px;
    line-height: 1.6;
}

.qa-section__btn-area {

}

/* QA外部リンクボタン */
.qa-external-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 24px 0;
    background: #f6f6f6;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: 16px;
    color: var(--color-main);
    line-height: 1;
    white-space: nowrap;
    transition: opacity var(--transition);
    text-decoration: none;
    box-shadow: 0 4px 5px rgba(0, 0, 0, 0.04);
}

.qa-external-btn:hover {
    opacity: 0.7;
}

/* ===== ログインページ ===== */
.login-page {
    min-height: 100vh;
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 30px;
}

.login-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.login-logo__img {
    width: 89px;
    height: 100px;
    object-fit: contain;
}

.login-logo__text {
    font-size: 24px;
    color: var(--color-main);
    text-align: center;
    line-height: 1.4;
}

.login-box {
    background: var(--color-white);
    padding: 30px;
    width: 45%;
}

.login-form-fields {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.form-label {
    font-size: 16px;
    color: var(--color-main);
    line-height: 1.4;
}

.form-input {
    width: 100%;
    height: 48px;
    padding: 0 12px;
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: 16px;
    color: var(--color-main);
    outline: none;
    transition: border-color var(--transition);
}

.form-input:focus {
    border-color: var(--color-main);
}

.form-input--password {
    padding-right: 44px;
}

.form-input-wrap {
    position: relative;
}

.form-pw-toggle {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    color: var(--color-muted);
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.form-check__input {
    width: 16px;
    height: 16px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    accent-color: var(--color-main);
    cursor: pointer;
}

.form-check__label {
    font-size: 14px;
    color: var(--color-main);
    line-height: 1;
}

.login-form-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.login-submit-btn {
    width: 100%;
    height: 47px;
    background: var(--color-main);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    cursor: pointer;
    transition: opacity var(--transition);
}

.login-submit-btn:hover {
    opacity: 0.8;
}

.forgot-password-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: #00668c;
    line-height: 1;
    text-decoration: none;
}

.forgot-password-link:hover {
    opacity: 0.7;
}

.forgot-password-link__icon {
    display: block;
    width: 15px;
    height: 8px;
    flex-shrink: 0;
}

/* エラーメッセージ */
.form-error {
    background: #FFF0F0;
    border: 1px solid var(--color-error);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 14px;
    color: var(--color-error);
    line-height: 1.6;
}

.form-success {
    background: #F0FFF4;
    border: 1px solid #2E7D32;
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 14px;
    color: #2E7D32;
    line-height: 1.6;
}

/* ===== パスワード表示トグル（全ページ共通） ===== */
.pw-field-wrap {
    position: relative;
}

.pw-field-wrap input[type="password"],
.pw-field-wrap input[type="text"] {
    padding-right: 44px !important;
}

.pw-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pw-toggle img {
    width: 20px;
    height: 20px;
    display: block;
}

/* ===== SWPMログインフォーム ===== */
/*
 * SWPMのlogin.phpが出力するHTML構造:
 * .swpm-login-widget-form > form#swpm-login-form > .swpm-login-form-inner
 *   .swpm-username-label / .swpm-username-input
 *   .swpm-password-label / .swpm-password-input
 *   .swpm-remember-me
 *   .swpm-before-login-submit-section  ← SiteGuard CAPTCHA注入箇所
 *   .swpm-login-submit
 *   .swpm-forgot-pass-link
 *   .swpm-join-us-link
 *   .swpm-login-action-msg
 */

/* デザイン順に並び替え（flex order）:
   username → password → CAPTCHA → remember → submit → forgot-pass */
.swpm-login-form-inner {
    display: flex;
    flex-direction: column;
}

.swpm-username-label {
    order: 1;
    margin: 0;
}

.swpm-username-input {
    order: 2;
    margin: 0;
}

.swpm-password-label {
    order: 3;
    margin: 20px 0 0;
}

.swpm-password-input {
    order: 4;
    margin: 0;
}

.swpm-before-login-submit-section {
    order: 5;
    margin: 20px 0 0;
}

/* CAPTCHA */
.swpm-remember-me {
    order: 6;
    margin: 0;
}

.swpm-login-submit {
    order: 7;
    margin: 20px 0 0;
}

.swpm-forgot-pass-link {
    order: 8;
    margin: 20px 0 0;
    text-align: center;
}

.swpm-join-us-link {
    display: none;
}

.swpm-login-action-msg {
    order: 0;
    margin: 0 0 8px;
}

/* エラー時はフォーム最上部に表示 */

/* ラベル */
.swpm-login-form-inner .swpm-label {
    display: block;
    font-size: 16px;
    color: var(--color-main);
    margin-bottom: 5px;
    font-weight: 500;
}

/* テキスト・パスワード入力欄 */
.swpm-login-form-inner .swpm-text-field {
    width: 100%;
    height: 48px;
    padding: 0 12px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: var(--font-main);
    color: var(--color-main);
    background: var(--color-white);
    outline: none;
    box-sizing: border-box;
}

.swpm-login-form-inner .swpm-text-field:focus {
    border-color: var(--color-main);
}

.swpm-before-login-submit-section p img {
    margin-bottom: 8px;
}

/* ログイン状態を保存チェックボックス */
.swpm-remember-me {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 10px;
}

.swpm-remember-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-main);
    cursor: pointer;
}

.swpm-rememberme-label {
    font-size: 14px;
    color: var(--color-main);
    cursor: pointer;
    margin-bottom: 5px;
}

/* ログインボタン */
.swpm-login-submit input[type="submit"],
.swpm-login-form-submit {
    width: 100%;
    height: 47px;
    background: var(--color-main);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: var(--font-main);
    cursor: pointer;
    transition: opacity var(--transition);
}

.swpm-login-submit input[type="submit"]:hover,
.swpm-login-form-submit:hover {
    opacity: 0.8;
}

/* パスワードを忘れた方はこちら */
.swpm-login-form-pw-reset-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 16px;
    color: #00668c;
    line-height: 1;
    text-decoration: none;
}

.swpm-login-form-pw-reset-link:hover {
    opacity: 0.7;
}

.swpm-login-form-pw-reset-link::after {
    content: '';
    display: inline-block;
    width: 15px;
    height: 8px;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    flex-shrink: 0;
    /* background-image はfunctions.phpのwp_add_inline_styleで設定 */
}

/* SWPMのエラー・メッセージ */
.swpm-login-widget-action-msg {
    display: block;
    font-size: 16px;
    font-family: var(--font-main);
    font-weight: bold;
    line-height: 1.5;
    text-align: center;
    color: var(--color-error);
}

.swpm-login-error-msg {
    color: var(--color-error);
    font-weight: bold;
}

/* ===== SiteGuard CAPTCHA（SWPM・開発用フォーム共通） ===== */
.swpm-before-login-submit-section p,
.siteguard-captcha p {
    margin: 0;
}

.swpm-before-login-submit-section p+p,
.siteguard-captcha p+p {
    gap: 5px;
}

/* CAPTCHA画像 */
.jcaptcha-img,
img.jcaptcha-img {
    display: block;
    height: 45px;
    width: auto;
    max-width: 110px;
    border-radius: var(--radius-sm);
}

/* CAPTCHAラベル */
.swpm-before-login-submit-section label,
.siteguard-captcha label {
    display: block;
    font-size: 16px;
    color: var(--color-main);
    margin-bottom: 5px;
}

/* CAPTCHA入力欄 */
#siteguard_captcha,
input[name="siteguard_captcha"] {
    width: 100%;
    height: 48px;
    padding: 0 12px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: var(--font-main);
    color: var(--color-main);
    background: var(--color-white);
    outline: none;
}

#siteguard_captcha:focus,
input[name="siteguard_captcha"]:focus {
    border-color: var(--color-main);
}

/* ===== 開発用フォーム（SWPMなし環境） ===== */
#loginform {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.lf-field {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

#loginform label {
    font-size: 16px;
    color: var(--color-main);
}

#loginform input[type="text"],
#loginform input[type="password"] {
    width: 100%;
    height: 48px;
    padding: 0 12px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: var(--font-main);
    color: var(--color-main);
    background: var(--color-white);
    outline: none;
}

#loginform input[type="text"]:focus,
#loginform input[type="password"]:focus {
    border-color: var(--color-main);
}

.lf-remember label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--color-main);
}

#loginform input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-main);
    flex-shrink: 0;
}

#loginform input[type="submit"] {
    width: 100%;
    height: 47px;
    background: var(--color-main);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: var(--font-main);
    cursor: pointer;
}

#loginform input[type="submit"]:hover {
    opacity: 0.8;
}

.login-form-bottom {
    margin-top: -20px;
}

/* ===== パスワードリセットページ ===== */
.auth-page {
    min-height: 100vh;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
}

.auth-box {
    background: var(--color-white);
    padding: 40px;
    width: 800px;
    max-width: 100%;
}

.auth-box__heading {
    font-size: 24px;
    color: var(--color-main);
    text-align: center;
    margin-bottom: 12px;
}

.auth-box__desc {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-main);
    text-align: center;
    margin-bottom: 40px;
}

.auth-box__fields {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

/* SWPMパスワードリセットフォーム ([swpm_reset_form]) */
.swpm-reset-pw-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.swpm-reset-pw-form label {
    font-size: 16px;
    color: var(--color-main);
    display: block;
    margin-bottom: 5px;
}

.swpm-reset-pw-form input[type="email"],
.swpm-reset-pw-form input[type="text"] {
    width: 100%;
    height: 48px;
    padding: 0 12px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: var(--font-main);
    color: var(--color-main);
    outline: none;
}

.swpm-reset-pw-form input[type="email"]:focus,
.swpm-reset-pw-form input[type="text"]:focus {
    border-color: var(--color-main);
}

.swpm-reset-pw-form input[type="submit"] {
    width: 100%;
    height: 55px;
    background: var(--color-main);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: var(--font-main);
    cursor: pointer;
    transition: opacity var(--transition);
}

.swpm-reset-pw-form input[type="submit"]:hover {
    opacity: 0.8;
}

.auth-submit-btn {
    width: 100%;
    height: 55px;
    background: var(--color-main);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    cursor: pointer;
    transition: opacity var(--transition);
}

.auth-submit-btn:hover {
    opacity: 0.8;
}

.auth-return-wrap {
    text-align: center;
}

.auth-return-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 16px;
    color: #00668c;
    line-height: 1;
    text-decoration: none;
    transition: opacity var(--transition);
}

.auth-return-link:hover {
    opacity: 0.8;
}

.auth-return-link__icon {
    display: block;
    flex-shrink: 0;
}

.auth-result-msg {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-error);
    text-align: center;
    margin-bottom: 30px;
}

.auth-result-msg--success {
    color: var(--color-main);
}

/* パスワード変更完了画面 */
.auth-box--success {
    padding: 100px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.auth-success-msg {
    font-size: 20px;
    line-height: 1.8;
    color: var(--color-main);
    text-align: center;
}

.auth-submit-btn--narrow {
    width: 270px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

/* ===== 宿題フォームブロック（shibito/homework） ===== */
.homework-section {
    border: 1px solid #d6d6d6;
    border-radius: var(--radius-md);
    padding: 50px 60px;
    margin-top: 80px;
}

.homework-section__title {
    font-size: 0;
    color: var(--color-main);
    margin-bottom: 30px;
    text-align: center;
}

.homework-section__title-main {
    font-size: 22px;
    letter-spacing: 0.05em;
    line-height: 1.5;
    font-feature-settings: "palt";
}

.homework-section__title-suffix {
    font-size: 0.8em;
    line-height: 1.5;
}

.homework-section__desc+p {
    margin-top: 20px;
}

.homework-section__desc+p+p {
    margin-top: 20px;
}

.homework-section__btn-wrap {
    margin: 40px 0 0;
    width: 100%;
}

.homework-section__btn {
    display: block;
    margin: 0 auto;
    text-align: center;
    width: 100%;
    padding: 16px 0;
    background: #f6f6f6;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: 16px;
    letter-spacing: 0.05em;
    color: var(--color-main);
    text-decoration: none;
    transition: opacity var(--transition);
    cursor: pointer;
    box-shadow: 0 4px 5px rgba(0, 0, 0, 0.04);
}

.homework-section__btn:hover {
    opacity: 0.7;
}

/* ===== 総合ホーム（トップ）===== */
.home-page {
    min-height: 100vh;
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
}

.home-page__inner {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 100px 40px 0;
    gap: 60px;
}

.home-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-top: 60px;
}

.home-logo__img {
    width: 89px;
    height: 100px;
    object-fit: contain;
}

.home-logo__text {
    font-size: 24px;
    color: var(--color-main);
    text-align: center;
    line-height: 1.4;
}

.home-level-btns {
    display: flex;
    gap: 40px;
    align-items: start;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 920px;
    width: 100%;
    margin: 0 auto;
}

.level-btn-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: calc((100% - 80px) / 3);
}

.level-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    aspect-ratio: 1;
    background: var(--color-white);
    border: 1px solid #dfdfdf;
    box-shadow: 0 4px 5px rgba(0, 0, 0, 0.04);
    border-radius: var(--radius-md);
    text-align: center;
    transition: all 0.5s;
    cursor: pointer;
    text-decoration: none;
}

.level-btn:hover {
    opacity: 0.7;
    border: 1px solid #FCFCFC;
}

.level-btn--disabled {
    background: var(--color-gray-100);
    cursor: not-allowed;
    pointer-events: none;
}

.level-btn__name {
    font-size: 24px;
    color: var(--color-main);
    line-height: 1;
}

.level-btn__sub {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.4;
    text-align: center;
}

.level-btn__sub--error {
    color: var(--color-error);
}

.level-btn__sub--locked {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.4;
}

/* ===== アクセス拒否ページ ===== */
.access-denied {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    text-align: center;
}

.access-denied__title {
    font-size: 24px;
    color: var(--color-main);
    margin-bottom: 16px;
}

.access-denied__desc {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-main);
    margin-bottom: 40px;
}

/* ===== ローディング ===== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px;
}

.loading::after {
    content: '';
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-main);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===== Lightbox カスタマイズ ===== */
.glightbox-clean .gslide-description {
    background: rgba(0, 0, 0, 0.8);
}

/* ===== ============================================================
   レスポンシブ対応
   ============================================================ ===== */

/* タブレット (max 1024px) */
@media (max-width: 1024px) {
    :root {
        --header-height: 80px;
    }

    .lec-card-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .lec-card {
        width: 100%;
    }

    .video-item {
        width: 100%;
    }

    .btn--primary,
    .btn--outline {
        width: 100%;
        max-width: 400px;
    }
}

/* タブレット縦〜スマホ横 (max 960px) — サイドバーを縦積みに切り替え */
@media (max-width: 960px) {

    /* 縦積みレイアウト */
    .lecture-layout {
        flex-direction: column;
        gap: 70px;
        width: 100%;
    }

    /* main を先、sidebar を後 */
    .lecture-main {
        order: 1;
        width: 90%;
        margin: 0 auto;
        padding: 0;
    }

    .category-page-title__text {
    font-size: 20px;
}

.category-page-title {
    margin-bottom: 24px;
}

    .lecture-sidebar {
        order: 2;
        width: 90%;
        margin: 0 auto;
        position: static;
        gap: 30px;
    }

    .home-page__inner {
        padding: 100px 30px 0;
        gap: 40px;
    }

    .home-level-btns {
        gap: 30px;
    }

    .level-btn-item {
        width: calc((100% - 60px) / 3);
    }
}

/* モバイル (max 768px) */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    /* ヘッダー */

    .site-header__logo {
        gap: 8px;
    }

    .site-header__logo-img {
        width: 42px;
        height: 46px;
    }

    .site-header__logo-text {
        font-size: 15px;
    }

    .site-header__inner {
        padding: 0 10px;
    }

    .site-header__nav {
        display: none;
    }

    .sp-menu-btn {
        display: flex;
    }

    /* 404ページ */
    .error-page__inner {
        gap: 60px;
    }

    .error-page__title {
        font-size: 24px;
        letter-spacing: 0.96px;
    }

    .error-page .btn--primary {
        width: 100%;
        max-width: 370px;
        padding: 16px 40px;
    }

    /* ブレッドクラム */
    .breadcrumbs {
        padding: 16px 0 60px;
        font-size: 12px;
    }

    /* フッター */
    .page-with-header .site-footer {
    margin-top: 50px;
}

    /* ログイン画面 */

    .login-logo__text {
        font-size: 20px;
    }

    .login-page {
        gap: 24px;
        justify-content: start;
    }

    .login-logo {
        margin-top: 30px;
    }

    .home-logo__img {
        width: 60px;
        height: auto;
    }

    .login-logo__img {
        width: 60px;
        height: auto;
    }

    /* トップページ */

    .home-page__inner {
        padding: 70px 20px 60px;
        gap: 30px;
    }

    .home-logo__img {
        width: 76px;
        height: 85px;
    }

    .home-logo {
        gap: 8px;
        margin-top: 40px;
    }

    .home-logo__text {
        font-size: 18px;
    }


    /* ホームレベルボタン */
    .home-level-btns {
        gap: 30px;
    }

    .level-btn-item {
        width: 90%;
        gap: 8px;
    }

    .level-btn {
        aspect-ratio: unset;
        height: 140px;
    }

    .level-btn__sub {
        font-size: 14px;
    }

    .level-btn__name {
        font-size: 20px;
    }

    /* カードグリッド */
    .lec-card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    /* ログインボックス */
    .login-box {
        padding: 16px;
        width: 94%;
    }

    /* QAセクション */
    .qa-section {
        margin-top: 70px;
    }

    /* ページタイトル */

    .page-ttl {
        margin-bottom: 70px;
    }

    .sec-ttl {
        font-size: 20px;
    }

    .lecture-layout {
        padding-bottom: 40px;
    }

    .lecture-home-section__title {
        font-size: 20px;
    }

    .lecture-list__item-name {
        font-size: 16px;
    }

    .qa-section__desc {
        margin-bottom: 20px;
    }

    .qa-external-btn {
        padding: 16px 0px;
        font-size: 18px;
    }

    .page-ttl__heading {
        font-size: 20px;
    }

    .single-ttl__text {
        font-size: 20px;
    }

    .single-ttl {
        margin-bottom: 16px;
    }

    /* ボタン */
    .btn {
        width: 100% !important;
        max-width: 100%;
    }

    .btn-area {
        margin-top: 30px;
    }

    /* エントリーコンテンツ */
    .entry-content h2 {
        font-size: 18px;
    }

    .entry-content p {
        font-size: 15px;
    }

    .auth-result-msg {
        margin-bottom: 16px;
        line-height: 1.5;
        letter-spacing: 0.02em;
        text-align: left;
    }

    /* ブロックエディターコンテンツの見出しサイズを調整 */

    .entry-content h2 {
        font-size: 20px;
        padding: 0 0 0 15px;
        margin: 40px 0 20px;
    }

    .entry-content h3 {
        margin-top: 32px;
    }

    /* ブロックエディターコンテンツ宿題パーツ */

    .homework-section {
        padding: 30px 24px;
        gap: 24px;
        margin-top: 30px;
    }

    .homework-section__title-main {
        font-size: 20px;
        line-height: 1.4;
    }

    .homework-section__btn {
        width: 500px;
        max-width: 100%;
        padding: 12px 0;
        font-size: 18px;
    }

    .homework-section__btn-wrap {
    margin: 24px 0 0;
}

    .pdf-link-area {
        margin: 12px 0 10px;
    }

    .entry-content figure {
        margin: 10px 0;
    }

    .auth-box--success {
        gap: 20px;
    }

    .auth-box {
        padding: 20px 15px;
    }

    .auth-box--success {
        margin: 0 0 50px;
    }

    .auth-submit-btn--narrow {
        width: 100%;
    }

    .auth-box__desc {
        margin-bottom: 24px;
    }

    .auth-submit-btn {
        margin-top: 10px !important;
    }

    .auth-box__heading {
    font-size: 20px;
}

.auth-box__fields {
    margin-bottom: 24px;
}

.homework-section__title-suffix {
    display: block;
}
}

/* スマホ (max 480px) */
@media (max-width: 480px) {

    .lec-card-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .lec-card__body {
    padding: 3% 0;
}

    .home-level-btns {
        flex-direction: column;
        align-items: center;
    }

    .category-page-title {
        margin-top: 20px;
        margin-bottom: 30px;
    }

    .category-page-title__text {
        font-size: 20px;
    }
}

/* ===== ユーティリティ ===== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
}

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

.mt-8 {
    margin-top: 8px;
}

.mt-16 {
    margin-top: 16px;
}

.mt-24 {
    margin-top: 24px;
}

.mt-40 {
    margin-top: 40px;
}

/* ===== 動画 SP/PC 表示切替 ===== */
/* SP: ネイティブ video を表示、GLightbox サムネイルを非表示 */
.video-lightbox-pc {
    display: none;
}

.video-native-wrap {
    display: block;
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
}

.video-native {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-native-play {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-native-play svg {
    width: 60px;
    height: 60px;
    transition: transform 0.2s;
}

.video-native-play:active svg {
    transform: scale(0.95);
}

.video-native-play.is-hidden {
    display: none;
}

/* PC: GLightbox サムネイルを表示、ネイティブ video を非表示 */
@media (min-width: 768px) {
    .video-lightbox-pc {
        display: block;
    }

    .video-native-wrap {
        display: none;
    }
}

/* SP 動画モーダル: <dialog> top layer を使用（CSS 制限を受けない） */
dialog.video-modal {
    padding: 0;
    border: none;
    background: #000;
    margin: 0;
    width: 100vw;
    height: 100vh;
    max-width: 100vw;
    max-height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

dialog.video-modal::backdrop {
    background: #000;
}

dialog.video-modal video {
    width: 100%;
    max-height: 100vh;
    object-fit: contain;
}

dialog.video-modal .video-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    background: rgba(0, 0, 0, 0.7);
    border: 2px solid rgba(255, 255, 255, 0.6);
    color: #fff;
    border-radius: 50%;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}