/* お知らせ詳細ページのスタイル */
.announcement-details-container {
    max-width: 900px; /* 800pxから900pxに拡大 */
    min-width: 320px; /* 最小幅を設定 */
    width: 90%; /* 画面幅の90%を基本とする */
    margin: 30px auto;
    padding: 20px;
    background: rgba(25, 25, 35, 0.75);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    color: #fff;
}

.announcement-header {
    margin-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 20px;
}

.back-link {
    margin-bottom: 15px;
}

    .back-link a {
        color: rgba(255, 255, 255, 0.7);
        text-decoration: none;
        font-size: 0.9rem;
        display: inline-flex;
        align-items: center;
        transition: color 0.2s;
    }

        .back-link a:hover {
            color: #fff;
        }

        .back-link a i {
            margin-right: 5px;
        }

.announcement-meta {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.announcement-date {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-right: 15px;
}

.announcement-tag {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

    .announcement-tag.update {
        background-color: rgba(106, 130, 251, 0.2);
        color: #6a82fb;
    }

    .announcement-tag.new {
        background-color: rgba(78, 205, 196, 0.2);
        color: #4ecdc4;
    }

    .announcement-tag.important {
        background-color: rgba(255, 90, 95, 0.2);
        color: #ff5a5f;
    }

.announcement-title {
    font-size: 1.8rem;
    margin: 0;
    line-height: 1.3;
    font-weight: 600;
}

.announcement-content {
    font-size: 1rem;
    line-height: 1.7;
}

    .announcement-content h2 {
        font-size: 1.4rem;
        margin-top: 30px;
        margin-bottom: 15px;
        font-weight: 600;
    }

    .announcement-content p {
        margin-bottom: 20px;
    }

    .announcement-content ul,
    .announcement-content ol {
        margin-bottom: 20px;
        padding-left: 20px;
    }

    .announcement-content a {
        color: #6a82fb;
        text-decoration: none;
    }

        .announcement-content a:hover {
            text-decoration: underline;
        }

.announcement-image {
    margin: 25px 0;
    border-radius: 8px;
    overflow: hidden;
}

    .announcement-image img {
        width: 100%;
        height: auto;
        display: block;
    }

.image-caption {
    text-align: center;
    font-size: 0.9rem;
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
}

.announcement-footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.related-announcements h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    font-weight: 500;
}

.related-announcements ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

    .related-announcements ul li {
        margin-bottom: 10px;
    }

        .related-announcements ul li a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: color 0.2s;
        }

            .related-announcements ul li a:hover {
                color: #fff;
                text-decoration: underline;
            }

/* お知らせ一覧ページのスタイル */
/* お知らせ一覧ページのスタイル */
.announcement-index-container {
    max-width: 900px; /* 800pxから900pxに拡大 */
    min-width: 320px; /* 最小幅を設定 */
    width: 90%; /* 画面幅の90%を基本とする */
    margin: 30px auto;
    padding: 20px;
    background: rgba(25, 25, 35, 0.75);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    color: #fff;
}

.announcement-index-header {
    margin-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 15px;
}

    .announcement-index-header h1 {
        font-size: 2rem;
        margin: 0;
        font-weight: 600;
    }

.announcement-list-item {
    display: flex;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

    .announcement-list-item:last-child {
        border-bottom: none;
    }

.announcement-list-date {
    min-width: 100px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    padding-right: 15px;
}

.announcement-list-content {
    flex: 1;
}

.announcement-list-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 1.05rem;
}

    .announcement-list-link:hover {
        color: #fff;
        text-decoration: underline;
    }

/* レスポンシブ対応 */
@media (max-width: 600px) {
    .announcement-details-container,
    .announcement-index-container {
        padding: 15px;
        margin: 15px;
    }

    .announcement-title,
    .announcement-index-header h1 {
        font-size: 1.5rem;
    }

    .announcement-content h2 {
        font-size: 1.2rem;
    }

    .announcement-list-item {
        flex-direction: column;
    }

    .announcement-list-date {
        min-width: auto;
        margin-bottom: 5px;
    }

    .announcement-details-container,
    .announcement-index-container,
    .announcement-create-container {
        width: 95%; /* 幅を95%に調整 */
        min-width: 280px; /* 小さい画面での最小幅 */
        padding: 15px;
        margin: 15px auto; /* 中央揃えを維持 */
    }
}

/* お知らせ詳細ページのスタイル */
.announcement-details-container {
    max-width: 800px;
    margin: 30px auto;
    padding: 20px;
    background: rgba(25, 25, 35, 0.75);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    color: #fff;
}

.announcement-header {
    margin-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 20px;
}

.back-link {
    margin-bottom: 15px;
}

    .back-link a {
        color: rgba(255, 255, 255, 0.7);
        text-decoration: none;
        font-size: 0.9rem;
        display: inline-flex;
        align-items: center;
        transition: color 0.2s;
    }

        .back-link a:hover {
            color: #fff;
        }

        .back-link a i {
            margin-right: 5px;
        }

.announcement-meta {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.announcement-date {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-right: 15px;
}

.announcement-tag {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

    .announcement-tag.update {
        background-color: rgba(106, 130, 251, 0.2);
        color: #6a82fb;
    }

    .announcement-tag.new {
        background-color: rgba(78, 205, 196, 0.2);
        color: #4ecdc4;
    }

    .announcement-tag.important {
        background-color: rgba(255, 90, 95, 0.2);
        color: #ff5a5f;
    }

.announcement-title {
    font-size: 1.8rem;
    margin: 0;
    line-height: 1.3;
    font-weight: 600;
}

.announcement-content {
    font-size: 1rem;
    line-height: 1.7;
}

    .announcement-content h2 {
        font-size: 1.4rem;
        margin-top: 30px;
        margin-bottom: 15px;
        font-weight: 600;
    }

    .announcement-content p {
        margin-bottom: 20px;
    }

    .announcement-content ul,
    .announcement-content ol {
        margin-bottom: 20px;
        padding-left: 20px;
    }

    .announcement-content a {
        color: #6a82fb;
        text-decoration: none;
    }

        .announcement-content a:hover {
            text-decoration: underline;
        }

.announcement-image {
    margin: 25px 0;
    border-radius: 8px;
    overflow: hidden;
}

    .announcement-image img {
        width: 100%;
        height: auto;
        display: block;
    }

.image-caption {
    text-align: center;
    font-size: 0.9rem;
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
}

.announcement-footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.related-announcements h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    font-weight: 500;
}

.related-announcements ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

    .related-announcements ul li {
        margin-bottom: 10px;
    }

        .related-announcements ul li a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: color 0.2s;
        }

            .related-announcements ul li a:hover {
                color: #fff;
                text-decoration: underline;
            }

/* お知らせ一覧ページのスタイル */
.announcement-index-container {
    max-width: 800px;
    margin: 30px auto;
    padding: 20px;
    background: rgba(25, 25, 35, 0.75);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    color: #fff;
}

.announcement-index-header {
    margin-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 15px;
}

    .announcement-index-header h1 {
        font-size: 2rem;
        margin: 0;
        font-weight: 600;
    }

.announcement-list-item {
    display: flex;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

    .announcement-list-item:last-child {
        border-bottom: none;
    }

.announcement-list-date {
    min-width: 100px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    padding-right: 15px;
}

.announcement-list-content {
    flex: 1;
}

.announcement-list-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 1.05rem;
}

    .announcement-list-link:hover {
        color: #fff;
        text-decoration: underline;
    }

/* お知らせ作成・編集ページのスタイル */
.announcement-create-container {
    max-width: 1200px; /* 800pxから1200pxに変更 */
    min-width:800px;
    margin: 30px auto;
    padding: 20px;
    background: rgba(25, 25, 35, 0.75);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    color: #fff;
}

.announcement-form {
    margin-top: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    color: #fff;
    font-size: 1rem;
    transition: border-color 0.2s, background 0.2s;
}

    .form-control:focus {
        outline: none;
        background: rgba(255, 255, 255, 0.15);
        border-color: rgba(106, 130, 251, 0.5);
    }

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

.form-text {
    display: block;
    margin-top: 5px;
    font-size: 0.8rem;
}

.text-danger {
    color: #ff5a5f;
    font-size: 0.85rem;
    margin-top: 5px;
    display: block;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background-color: #6a82fb;
    color: #fff;
}

    .btn-primary:hover {
        background-color: #5670e0;
    }

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}

    .btn-secondary:hover {
        background-color: rgba(255, 255, 255, 0.2);
    }

/* リッチテキストエディタのカスタムスタイル */
.note-editor.note-frame {
    border-color: rgba(255, 255, 255, 0.2) !important;
    background-color: rgba(25, 25, 35, 0.5);
}

.note-editor.note-frame .note-editing-area .note-editable {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    padding: 15px;
}

.note-toolbar {
    background-color: rgba(45, 45, 60, 0.9) !important;
}

.note-btn {
    background-color: rgba(255, 255, 255, 0.2) !important;
    color: #fff !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
}

.note-btn:hover {
    background-color: rgba(255, 255, 255, 0.3) !important;
}

.note-dropdown-menu {
    background-color: rgba(45, 45, 60, 0.95) !important;
    border-color: rgba(255, 255, 255, 0.2) !important;
}

.note-dropdown-item {
    color: #fff !important;
}

.note-dropdown-item:hover {
    background-color: rgba(255, 255, 255, 0.1) !important;
}

/* レスポンシブ対応 */
@media (max-width: 600px) {
    .announcement-details-container,
    .announcement-index-container,
    .announcement-create-container {
        padding: 15px;
        margin: 15px;
    }

    .announcement-title,
    .announcement-index-header h1 {
        font-size: 1.5rem;
    }

    .announcement-content h2 {
        font-size: 1.2rem;
    }

    .announcement-list-item {
        flex-direction: column;
    }

    .announcement-list-date {
        min-width: auto;
        margin-bottom: 5px;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        margin-bottom: 10px;
    }
}

/* 管理者アクション用スタイル */
.admin-actions {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: flex-end;
}

.btn-danger {
    background-color: #ff5a5f;
    color: #fff;
}

    .btn-danger:hover {
        background-color: #ff3a3f;
    }