* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

body {
    font-family: 'Inter', sans-serif;
    color: #333;
}

header {
    display: flex;
    align-items: center;
    background-color: #d0a7ff;
    color: #fff;
    padding: 1rem;
    position: fixed;
    top: 0;
    width: 100%;
    min-height: 70px;
    z-index: 1000;
}

@media (max-width: 1340px) {
    header {
        min-height: 50px;
        padding: 0.5rem;
    }
}

header .logo {
    display: flex;
    align-items: center;
}

header .logo img {
    max-width: 200px;
    height: auto;
}

@media (max-width: 1340px) {
    header .logo img {
        max-width: 150px;
    }
}

main {
    padding: 2rem 0;
    margin-top: 100px;
}

main.container {
    padding-top: 85px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 1340px) {
    main {
        padding-top: 70px;
        padding: 1rem 0;
    }
    .container {
        padding: 0 1rem;
    }
}

main p {
    padding-top: 1rem;
    padding-bottom: 2rem;
    padding-left: 1rem;
    padding-right: 2rem;
}

h1 {
    font-size: 2rem;
    padding-bottom: 1rem;
    padding-left: 1rem;
    padding-right: 2rem;
    padding-top: 2rem;
}

h2, h3 {
    text-align: center;
}

h3 {
    font-size: 1.5rem;
}

@media (max-width: 1340px) {
    h3, .self-intro-section.no-image-section p {
        text-align: left;
    }
    .self-introduction-area-no-image .self-intro-title,
    .activity-area-no-image .self-intro-title {
        font-size: 1.3rem;
    }
}

img {
    user-select: none;
}

:root {
    --primary-green: #4CAF50;
    --light-green: #A5D6A7;
    --current-img-width: 350px;
    --side-img-width: 180px;
    --img-gap: 15px;
    --intro-bg-color: #9effec;
    --reversed-intro-bg-color: #adff8c;
    --no-image-intro-bg-color: #b6a6ff;
    --no-image-reversed-bg-color: #e0e0e0;
}

.slider-container {
    width: calc(var(--side-img-width) * 2 + var(--current-img-width) + var(--img-gap) * 4);
    height: calc(var(--current-img-width) * 0.75);
    position: relative;
    margin: 40px auto 20px;
    overflow: hidden;
    border-radius: 10px;
}

.slider-track {
    display: flex;
    width: fit-content;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: absolute;
    left: 0;
    top: 0;
    align-items: center;
}

.slide-item {
    height: auto;
    object-fit: cover;
    border-radius: 10px;
    transition: width 0.5s ease-in-out, height 0.5s ease-in-out, opacity 0.5s ease-in-out, transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    border: 1px solid #eee;
}

.slide-item.previous,
.slide-item.next {
    width: var(--side-img-width);
    height: calc(var(--side-img-width) * 0.75);
    opacity: 0.7;
    transform: scale(0.95);
}

.slide-item.current {
    width: var(--current-img-width);
    height: calc(var(--current-img-width) * 0.75);
    opacity: 1;
    transform: scale(1);
}

.slider-controls {
    max-width: calc(var(--side-img-width) * 2 + var(--current-img-width) + var(--img-gap) * 4);
    margin: 10px auto 0;
    padding: 0 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dots-container {
    text-align: left;
}

.dot {
    cursor: pointer;
    height: 15px;
    width: 15px;
    margin: 0 4px;
    background-color: var(--light-green);
    border-radius: 50%;
    display: inline-block;
    transition: background-color 0.6s ease;
}

.active, .dot:hover {
    background-color: var(--primary-green);
}

.navigation-buttons {
    display: flex;
    gap: 8px;
    align-items: center;
}

.slider-btn {
    background-color: transparent;
    color: var(--primary-green);
    border: 1.5px solid var(--primary-green);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
    outline: none;
    box-shadow: none;
}

.slider-btn:hover {
    background-color: var(--primary-green);
    color: white;
}

.notice-content h2 {
    text-align: center;
}

.notice-content {
    background-color: #f0f0f0;
    padding: 20px;
    border-radius: 50px;
    text-align: left;
    line-height: 1.6;
    margin-top: 30px;
    margin-bottom: 30px;
}

#noticeArea {
    background-color: #f8f8f8;
    padding: 30px;
    margin: 10px;
    border-radius: 40px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
    min-height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.1em;
    color: #666;
}

.notice-content #noticeArea a {
    display: block;
    color: inherit;
    cursor: pointer;
    white-space: pre-wrap;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
}

#noticeArea p {
    font-size: 1.1em;
    padding: 0;
    margin: 0;
}

footer {
    background-color: #4d4d4d;
    color: #fff;
    padding: 1rem;
    font-size: 0.9em;
    margin-top: 20px;
}

footer .footer-content p {
    margin: 10px 0;
    line-height: 2.1;
}

footer .footer-content a {
    display: block;
    margin-bottom: 10px;
    color: #fff;
    text-decoration: none;
}

@media (max-width: 1340px) {
    .slider-container {
        width: 90%;
        max-width: 320px;
        height: calc(var(--current-img-width) * 0.75 * (320/350));
        border: none;
        box-shadow: none;
        margin: 20px auto;
    }

    .slider-track {
        width: 100%;
        justify-content: center;
        position: relative;
        transform: translateX(0) !important;
        transition: none;
    }

    .slide-item {
        width: 100%;
        height: 100%;
        margin: 0;
        opacity: 0;
        position: absolute;
        top: 0;
        left: 0;
        transition: opacity 0.5s ease-in-out;
        box-shadow: none;
        border: none;
        transform: none;
    }

    .slide-item.current {
        opacity: 1;
        z-index: 1;
    }

    .slide-item.previous,
    .slide-item.next {
        display: none;
    }

    .slider-controls {
        max-width: 90%;
    }

    .notice-content {
        padding: 15px;
        margin-top: 20px;
        margin-bottom: 20px;
    }
}

.self-intro-section {
    background-color: var(--intro-bg-color);
    padding: 2.5rem 2.5rem;
    border-radius: 0 40px 40px 0;
    margin-top: 30px;
    margin-bottom: 30px;
    max-width: 1200px;
    width: 100%;
    margin-left: 0;
    margin-right: auto;
    position: relative;
    box-shadow: none;
    display: block;
    min-height: 400px;
}

.self-intro-title,
.self-intro-content {
    position: absolute;
    left: 55%;
    text-align: left;
    max-width: 500px;
    width: 100%;
}

.self-intro-title {
    font-weight: 600;
    text-align: left;
    border-bottom: none;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    font-size: 2rem;
    top: 50%;
    transform: translate(-50%, -100%);
}

.self-intro-content {
    margin-top: 0;
    line-height: 1.7;
    font-size: 1.05rem;
    text-align: left;
    top: 50%;
    transform: translate(-50%, 0);
    padding-bottom: 60px;
}

.self-intro-image-wrapper {
    position: absolute;
    top: 45%;
    right: -100px;
    transform: translateY(-50%);
    flex-shrink: 0;
    width: 40%;
    max-width: 350px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.self-intro-image-wrapper.fade-in-wrapper {
    opacity: 0; /* 初期状態で非表示 */
    transition: opacity 1s ease-in;
}

.self-intro-image-wrapper img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
    user-select: none;
    border-radius: 20px;
}

.reversed-intro-section {
    background-color: var(--reversed-intro-bg-color);
    padding: 2.5rem 2.5rem;
    border-radius: 40px 0 0 40px;
    margin-top: 50px;
    margin-bottom: 30px;
    max-width: 1200px;
    width: 100%;
    margin-left: auto;
    margin-right: 0;
    position: relative;
    box-shadow: none;
    display: block;
    min-height: 400px;
}

.reversed-intro-section .self-intro-title,
.reversed-intro-section .self-intro-content {
    position: absolute;
    left: 45%;
    text-align: left;
    max-width: 500px;
    width: 100%;
}

.reversed-intro-section .self-intro-title {
    top: 50%;
    transform: translate(-50%, -100%);
}

.reversed-intro-section .self-intro-content {
    top: 50%;
    transform: translate(-50%, 0);
}

.reversed-intro-section > .self-intro-image-wrapper {
    position: absolute;
    top: 45%;
    right: auto;
    left: -100px;
    transform: translateY(-50%);
    flex-shrink: 0;
    width: 40%;
    max-width: 350px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.reversed-intro-section > .self-intro-image-wrapper.fade-in-wrapper {
    opacity: 0; /* 初期状態で非表示 */
    transition: opacity 1s ease-in;
}

@media (max-width: 1340px) {
    .self-intro-section,
    .reversed-intro-section {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 20px;
        position: static;
        min-height: auto;
        padding: 1.5rem 1rem;
        margin-left: auto;
        margin-right: auto;
    }

    .self-intro-section .self-intro-title,
    .self-intro-section .self-intro-content,
    .reversed-intro-section .self-intro-title,
    .reversed-intro-section .self-intro-content {
        position: static;
        transform: none;
        max-width: 100%;
        width: 90%;
        left: auto;
        top: auto;
        text-align: left;
    }

    .self-intro-section .self-intro-title,
    .reversed-intro-section .self-intro-title {
        text-align: center;
    }

    .self-intro-section > .self-intro-text-content,
    .reversed-intro-section > .self-intro-title,
    .reversed-intro-section > .self-intro-content {
        order: 1;
    }
    
    .self-intro-section > .self-intro-image-wrapper,
    .reversed-intro-section > .self-intro-image-wrapper {
        position: static;
        transform: none;
        right: auto;
        left: auto;
        top: auto;
        width: 80%;
        max-width: 250px;
        margin: 0 auto;
        order: 2;
    }

    .self-intro-section > .self-intro-image-wrapper.fade-in-wrapper,
    .reversed-intro-section > .self-intro-image-wrapper.fade-in-wrapper {
        opacity: 1; /* モバイルでは常に表示 */
    }

    .self-intro-section {
        border-radius: 0 30px 30px 0;
    }

    .reversed-intro-section {
        border-radius: 30px 0 0 30px;
    }
}

.highlight-box-container {
    margin-top: 30px;
    margin-bottom: 30px;
    padding: 0 20px;
}

.highlight-box {
    background-color: #d0ffa1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 30px 40px;
    border-radius: 20px;
    box-shadow: none;
    text-align: left;
}

.highlight-box h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
    padding: 0;
}

.highlight-box p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #555;
    margin: 10px 0 20px 0;
    padding: 0;
    text-align: center;
}

.button-group {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.highlight-box button {
    background-color: #ffffff;
    color: #333;
    border: none;
    padding: 15px 30px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    width: 200px;
    transition: all 0.3s ease;
    box-shadow: 0 0 0 2px #d0ffa1, 0 4px 8px rgba(0,0,0,0.1);
}

.highlight-box button:hover {
    background-color: #f0f0f0;
    box-shadow: 0 0 0 2px #d0ffa1, 0 6px 12px rgba(0,0,0,0.15);
}

.highlight-box .intro-button-group {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.highlight-box .intro-detail-button {
    background-color: #ffffff;
    color: #333;
    border: none;
    padding: 15px 30px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    width: 200px;
    transition: all 0.3s ease;
    box-shadow: 0 0 0 2px #d0ffa1, 0 4px 8px rgba(0,0,0,0.1);
}

.highlight-box .intro-detail-button:hover {
    background-color: #f0f0f0;
    box-shadow: 0 0 0 2px #d0ffa1, 0 6px 12px rgba(0,0,0,0.15);
}

@media (max-width: 1340px) {
    .highlight-box {
        padding: 20px 25px;
        border-radius: 15px;
    }
    .highlight-box h3 {
        font-size: 1.5rem;
    }
    .highlight-box p {
        font-size: 1rem;
        text-align: left;
    }

    .button-group,
    .highlight-box .intro-button-group {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }

    .highlight-box button,
    .highlight-box .intro-detail-button {
        width: 200px;
        padding: 12px 20px;
        font-weight: 700;
    }
}

.self-introduction-area-no-image .self-intro-section.no-image-section {
    background-color: var(--no-image-intro-bg-color);
}
.activity-area-no-image .self-intro-section.no-image-section {
    background-color: var(--no-image-reversed-bg-color);
}

.self-intro-section.no-image-section {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 250px;
    padding: 2rem;
}

.self-intro-section.no-image-section .self-intro-title,
.self-intro-section.no-image-section .self-intro-content {
    position: static;
    transform: none;
    text-align: center;
    max-width: 100%;
    width: auto;
    padding-bottom: 0;
}

.self-intro-section.no-image-section .self-intro-content p {
    padding: 1rem 0;
}

.self-intro-section.no-image-section .intro-button-group,
.self-intro-section.no-image-section .button-group {
    position: static;
    width: auto;
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.self-introduction-area-no-image button,
.activity-area-no-image button {
    background-color: #ffffff;
    color: #333;
    border: none;
    padding: 15px 30px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    width: 200px;
    transition: all 0.3s ease;
}

.self-introduction-area-no-image button {
    box-shadow: 0 0 0 2px var(--no-image-intro-bg-color), 0 4px 8px rgba(0,0,0,0.1);
}
.self-introduction-area-no-image button:hover {
    background-color: #f0f0f0;
    box-shadow: 0 0 0 2px var(--no-image-intro-bg-color), 0 6px 12px rgba(0,0,0,0.15);
}

.activity-area-no-image button {
    box-shadow: 0 0 0 2px var(--no-image-reversed-bg-color), 0 4px 8px rgba(0,0,0,0.1);
}
.activity-area-no-image button:hover {
    background-color: #f0f0f0;
    box-shadow: 0 0 0 2px var(--no-image-reversed-bg-color), 0 6px 12px rgba(0,0,0,0.15);
}

.self-intro-section .intro-button-group {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    display: flex;
    justify-content: flex-start;
    padding-top: 10px;
    margin-top: 30px;
}

.self-intro-section .intro-detail-button {
    background-color: #ffffff;
    color: #333;
    border: none;
    padding: 15px 30px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    width: 200px;
    transition: all 0.3s ease;
    box-shadow: 0 0 0 2px var(--intro-bg-color), 0 4px 8px rgba(0,0,0,0.1);
}

.self-intro-section .intro-detail-button:hover {
    background-color: #f0f0f0;
    box-shadow: 0 0 0 2px var(--intro-bg-color), 0 6px 12px rgba(0,0,0,0.15);
}

@media (max-width: 1340px) {
    .self-intro-section .self-intro-content {
        padding-bottom: 0;
    }

    .self-intro-section .intro-button-group {
        position: static;
        justify-content: center;
        margin-top: 20px;
    }

    .self-intro-section .intro-detail-button {
        width: 200px;
        padding: 12px 20px;
    }

    .self-introduction-area-no-image button,
    .activity-area-no-image button {
        width: 200px;
        padding: 12px 20px;
    }
    .self-intro-section.no-image-section .intro-button-group,
    .self-intro-section.no-image-section .button-group {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
}

/* Share Button and Modal Styles */
.share-button-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    background: transparent !important;
}

.share-button-container.active {
    opacity: 1 !important;
    visibility: visible !important;
}

.share-button {
    all: initial;
    display: flex;
    align-items: center;
    background: #FF6200 !important;
    background-color: #FF6200 !important;
    background-image: none !important;
    padding: 10px 20px;
    border-radius: 25px;
    border: 0 !important;
    outline: none !important;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2) !important;
    cursor: pointer;
    font-size: 1rem !important;
    font-weight: 600 !important;
    color: #fff !important;
    transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.share-button:hover {
    background-color: #FF8C00 !important;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.25) !important;
}

.share-button .share-icon {
    margin-right: 8px;
    width: 1.2rem;
    height: 1.2rem;
    background: transparent !important;
    filter: invert(100%) sepia(100%) saturate(0%) hue-rotate(180deg) brightness(120%) contrast(100%) !important;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 3000;
    display: none;
    justify-content: center;
    align-items: center;
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 10px;
    max-width: 400px;
    width: 90%;
    position: relative;
    text-align: center;
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: #333;
}

.qr-code {
    margin: 20px auto;
    max-width: 300px; /* 大きく調整 */
}

.qr-code img {
    width: 100%;
    height: auto;
}

.url-container {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
}

.url-input {
    flex-grow: 1;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
}

.copy-button {
    background-color: var(--primary-green);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

.copy-button:hover {
    background-color: #45a049;
}








/* トグルスイッチ */
/* トグルスイッチ */
.toggle-container {
    margin: 20px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .toggle-slider {
    background-color: #4CAF50;
}

input:checked + .toggle-slider:before {
    transform: translateX(26px);
}

/* 選択ドロップダウン */
.select-container {
    margin: 20px 0;
    text-align: left;
}

.select-container label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #333;
}

.select-container select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-bottom: 10px;
    font-size: 1rem;
}

#playNowBtn {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
    width: 100%;
}

#playNowBtn:hover {
    background-color: #45a049;
}

/* モーダル調整 */
#morseModal .modal-content {
    max-height: 80vh;
    overflow-y: auto;
}

@media (max-width: 1340px) {
    .toggle-container {
        justify-content: center;
    }
    
    .select-container {
        text-align: center;
    }
}