@charset "UTF-8";

/* 共通部分
------------------------------- */
html {
    font-size: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "BIZ UDPGothic", sans-serif;
    line-height: 1.7;
    color: rgb(0, 0, 0);
    animation: fadeIn 1s ease-in;
}

/* アニメーション定義 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInFromBottom {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

a {
    text-decoration: none;
}

img {
    max-width: 100%;
}

/* レイアウト */
.wrapper {
    max-width: 1120px;
    margin: auto;
    padding: 0 1.5rem;
}

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

/* 見出し */
.font-english {
    font-family: 'Orbitron', monospace;
    font-weight: normal;
}

.page-title,
.heading-large {
    font-size: 2rem;
    text-align: center;
}

.page-title {
    margin-top: 2rem;
    line-height: 1.4;
    animation: slideInFromBottom 1.5s ease-out;
    opacity: 0;
    animation-fill-mode: forwards;
}

.cover-text {
    max-width: 800px;
    margin: 7rem auto 0;
    padding: 0 2rem;
    text-align: center;
    color: #333;
    line-height: 2.2;
    animation: slideInFromBottom 2s ease-out;
    opacity: 0;
    animation-fill-mode: forwards;
    animation-delay: 0.5s;
}

.cover-text p {
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.line-bg {
    background-color: rgba(255, 255, 255, 0.9);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    display: inline;
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
}

.heading-large {
    margin-bottom: 2rem;
    animation: slideInFromBottom 1s ease-out;
    opacity: 0;
    animation-fill-mode: forwards;
    animation-delay: 0.3s;
    position: relative;
    display: inline-block;
    background: linear-gradient(135deg, #00a01f, #0bd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.heading-large::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #00a01f, #0bd);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.heading-large:hover {
    transform: translateY(-2px);
}

.heading-large:hover::after {
    width: 80px;
}

/* THANK YOUセクション背景スタイル */
#thankyou {
    position: relative;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding: 4rem 2rem;
    overflow: hidden;
}

#thankyou::before {
    content: '';
    position: absolute;
    top: 65%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 98%;
    height: 70%;
    background-image: url('../images/group photo.JPG');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 30px;
    z-index: 1;
}

#thankyou > * {
    position: relative;
    z-index: 3;
}

#thankyou .heading-large {
    color: #333;
    background: linear-gradient(135deg, #333, #666);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    font-size: 3rem;
    margin-bottom: 2rem;
    margin-top: 15rem;
}

#thankyou .heading-large::after {
    background: linear-gradient(90deg, #00a01f, #0bd);
    box-shadow: 0 2px 8px rgba(0, 186, 221, 0.3);
}

#thankyou .cover-text {
    color: #fff;
    background: transparent;
    padding: 3rem 4rem;
    max-width: 900px;
    margin: 0 auto;
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.8),
        0 0 20px rgba(0, 0, 0, 0.6);
}

#thankyou .cover-text p {
    font-size: 1.4rem;
    line-height: 1.8;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

#thankyou .btn {
    background: linear-gradient(135deg, #00a01f, #0bd);
    box-shadow: 
        0 4px 20px rgba(0, 186, 221, 0.4),
        0 2px 8px rgba(0, 0, 0, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    transform: translateY(0);
    transition: all 0.4s ease;
    margin-top: 28rem;
}

#thankyou .btn:hover {
    transform: translateY(-3px);
    box-shadow: 
        0 8px 30px rgba(0, 186, 221, 0.5),
        0 4px 12px rgba(0, 0, 0, 0.15);
}

/* ボタン */
.btn {
    display: inline-block;
    font-size: 1.5rem;
    background-color: #0bd;
    color: #fff;
    border-radius: 8px;
    padding: .75rem 1.5rem;
    transition: all 0.3s ease;
    margin: 3rem auto 0;
    position: relative;
    overflow: hidden;
    transform: translateY(0);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
}

.btn:hover {
    background-color: #0090aa;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 187, 221, 0.4);
}

.btn:hover::before {
    left: 100%;
}

/* ヘッダー
------------------------------- */
.page-header {
    padding-top: .5rem;
}

.logo {
    width: 210px;
    transition: transform 0.3s ease;
    animation: slideInFromLeft 1s ease-out;
}

.logo:hover {
    transform: scale(1.1);
    animation: bounce 0.6s ease;
}

.main-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    font-size: 1rem;
    list-style: none;
    animation: slideInFromBottom 1.2s ease-out;
}

.main-nav li {
    transition: transform 0.3s ease;
}

.main-nav li:hover {
    transform: translateY(-3px);
}

.main-nav a {
    color: rgb(0, 0, 0);
    position: relative;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 20px;
}

.main-nav a:hover {
    color: #00a01f;
    background-color: rgba(0, 160, 31, 0.1);
    transform: scale(1.1);
}

.main-nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: #00a01f;
    transition: all 0.3s ease;
}

.main-nav a:hover::after {
    width: 80%;
    left: 10%;
}

/* ハンバーガーメニュー
------------------------------- */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    transition: transform 0.3s ease;
}

.hamburger-btn:hover {
    transform: scale(1.1);
}

.hamburger-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background: linear-gradient(135deg, #00a01f, #0bd);
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* モバイルナビゲーション */
.nav-container {
    position: relative;
}

.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* モバイル版のナビゲーション */
@media (max-width: 799px) {
    .hamburger-btn {
        display: flex;
        position: absolute;
        top: 50%;
        right: 0;
        transform: translateY(-50%);
    }

    .page-header {
        position: relative;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -300px;
        width: 280px;
        height: 100vh;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(240, 248, 255, 0.95));
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 80px;
        gap: 2rem;
        font-size: 1.2rem;
        z-index: 1000;
        transition: right 0.3s ease;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }

    .main-nav.active {
        right: 0;
    }

    .main-nav li {
        width: 100%;
        text-align: center;
        padding: 0.5rem 0;
    }

    .main-nav a {
        display: block;
        width: 100%;
        padding: 1rem 2rem;
        border-radius: 8px;
        margin: 0 1rem;
        transition: all 0.3s ease;
    }

    .main-nav a:hover {
        background: linear-gradient(135deg, rgba(0, 160, 31, 0.1), rgba(0, 187, 221, 0.1));
        transform: translateX(-5px);
    }

    /* セパレーター（|）を非表示 */
    .main-nav li:after {
        content: none;
    }

    /* スマホ版でのコメント文字サイズを小さく */
    .cover-text p {
        font-size: 0.9rem;
    }

    /* スマホ版で全項目のフェードインアニメーションを削除 */
    .fade-in-hidden,
    .fade-in-visible {
        opacity: 1 !important;
        transform: translateY(0) !important;
        transition: none !important;
    }
}

/* ヘッダーカバー画像
------------------------------- */
.cover {
    background-size: cover;
    background-position: center bottom;
    height: 800px;
}

/* HOME
------------------------------- */
.cover-home {
    background-image: url(../images/back-s.svg);
}

.about {
    max-width: 736px;
    padding: 0 1.5rem;
    margin: 3rem auto 0;
    text-align: center;
}

.about p {
    margin-bottom: 1rem;
}

/* アニメーションライン（Podcasterセクション用）
------------------------------- */
#podcaster {
    position: relative;
    overflow: hidden;
}

.animated-lines {
    position: absolute;
    top: 120px;
    left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    height: calc(100% - 120px);
    overflow: visible;
    z-index: -1;
    pointer-events: none;
}

.animated-lines {
    --random-angle-1: 45deg;
    --random-angle-2: -45deg;
    --random-angle-3: 30deg;
    --random-angle-4: -60deg;
    --random-angle-5: 50deg;
    --random-angle-6: -40deg;
    --random-angle-7: 35deg;
    --random-angle-8: -55deg;
}

.animated-lines::before,
.animated-lines::after {
    content: '';
    position: absolute;
    height: 6px;
    background: rgba(0, 0, 0, 0.8);
    opacity: 0;
    transition: width 4s ease-out, opacity 1s ease-out;
}

.animated-lines::before {
    left: 0;
    bottom: 20%;
    width: 0;
    transform: rotate(var(--random-angle-1));
    transform-origin: left center;
}

.animated-lines::after {
    right: 0;
    bottom: 20%;
    width: 0;
    transform: rotate(var(--random-angle-2));
    transform-origin: right center;
    transition-delay: 0.8s;
}

/* 追加の線 */
.animated-lines .line3,
.animated-lines .line4,
.animated-lines .line5,
.animated-lines .line6,
.animated-lines .line7,
.animated-lines .line8 {
    position: absolute;
    height: 6px;
    background: rgba(0, 0, 0, 0.8);
    opacity: 0;
    transition: width 4s ease-out, opacity 1s ease-out;
    width: 0;
}

.animated-lines .line3 {
    left: 0;
    top: 30%;
    transform: rotate(var(--random-angle-3));
    transform-origin: left center;
    transition-delay: 0.4s;
}

.animated-lines .line4 {
    right: 0;
    top: 30%;
    transform: rotate(var(--random-angle-4));
    transform-origin: right center;
    transition-delay: 1.2s;
}

.animated-lines .line5 {
    left: 0;
    top: 60%;
    transform: rotate(var(--random-angle-5));
    transform-origin: left center;
    transition-delay: 0.6s;
}

.animated-lines .line6 {
    right: 0;
    top: 60%;
    transform: rotate(var(--random-angle-6));
    transform-origin: right center;
    transition-delay: 1.0s;
}

.animated-lines .line7 {
    left: 0;
    top: 10%;
    transform: rotate(var(--random-angle-7));
    transform-origin: left center;
    transition-delay: 0.2s;
}

.animated-lines .line8 {
    right: 0;
    top: 10%;
    transform: rotate(var(--random-angle-8));
    transform-origin: right center;
    transition-delay: 1.4s;
}

.animated-lines.animate::before {
    width: 100vw;
    opacity: 1;
}

.animated-lines.animate::after {
    width: 100vw;
    opacity: 1;
}

.animated-lines.animate .line3,
.animated-lines.animate .line4,
.animated-lines.animate .line5,
.animated-lines.animate .line6,
.animated-lines.animate .line7,
.animated-lines.animate .line8 {
    width: 100vw;
    opacity: 1;
}

.animated-lines.fade-out::before,
.animated-lines.fade-out::after,
.animated-lines.fade-out .line3,
.animated-lines.fade-out .line4,
.animated-lines.fade-out .line5,
.animated-lines.fade-out .line6,
.animated-lines.fade-out .line7,
.animated-lines.fade-out .line8 {
    opacity: 0;
    transition: opacity 1s ease-out;
}

/* Podcastグリッド */
.podcast-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
    padding: 0 1rem;
    position: relative;
    z-index: 1;
}

.podcast-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.podcast-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 160, 31, 0.3);
}

.podcast-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.podcast-item:hover img {
    transform: scale(1.05);
}

/* Spotify Playlist */
.spotify-playlist {
    margin-top: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 1rem;
}

.spotify-playlist iframe {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.spotify-playlist iframe:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 187, 221, 0.2);
}

/* 参加申込ボタン */
.registration-btn {
    background: linear-gradient(135deg, #00a01f, #008a1b);
    font-size: 1.8rem;
    font-weight: bold;
    padding: 1rem 2.5rem;
    margin-top: 2rem;
    position: relative;
    overflow: hidden;
    animation: registrationPulse 3s infinite;
}

.registration-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.6s;
}

.registration-btn::after {
    content: '→';
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%) translateX(10px);
    opacity: 0;
    transition: all 0.3s ease;
    font-size: 1.5rem;
}

.registration-btn:hover {
    background: linear-gradient(135deg, #00fb27, #00d122);
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 251, 39, 0.5);
    padding-right: 3.5rem;
}

.registration-btn:hover::before {
    left: 100%;
}

.registration-btn:hover::after {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

.registration-btn:active {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 5px 15px rgba(0, 251, 39, 0.4);
}

.registration-btn:focus {
    outline: none;
}

.registration-btn:focus:not(:hover) {
    background: linear-gradient(135deg, #00a01f, #008a1b) !important;
    transform: translateY(0) !important;
    box-shadow: 0 5px 15px rgba(0, 160, 31, 0.4) !important;
    padding-right: 2.5rem !important;
}

.registration-btn:focus:not(:hover)::after {
    opacity: 0 !important;
    transform: translateY(-50%) translateX(10px) !important;
}

.registration-btn:active:not(:hover) {
    background: linear-gradient(135deg, #00a01f, #008a1b) !important;
    transform: translateY(0) !important;
    box-shadow: 0 5px 15px rgba(0, 160, 31, 0.4) !important;
    padding-right: 2.5rem !important;
}

.registration-btn:active:not(:hover)::after {
    opacity: 0 !important;
    transform: translateY(-50%) translateX(10px) !important;
}

@keyframes registrationPulse {
    0%, 100% {
        box-shadow: 0 5px 15px rgba(0, 160, 31, 0.4);
    }
    50% {
        box-shadow: 0 8px 25px rgba(0, 160, 31, 0.6);
    }
}

/* スクロール時のフェードインアニメーション */
.fade-in-hidden {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s ease, transform 1s ease;
}

.fade-in-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Information セクション
------------------------------- */
.information {
    padding-top: 6rem;
    max-width: none;
    margin: 3rem 0 0 0;
    padding-left: 0;
    padding-right: 0;
    text-align: center;
}

/* 会場画像 */
.venue-image {
    max-width: 500px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

.venue-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.venue-image img:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 160, 31, 0.2);
}

/* フッター
------------------------------- */
.page-footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

.partner-logo {
    max-width: 300px;
    width: 80%;
    height: auto;
    margin-top: 1rem;
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0.9;
}

.partner-logo:hover {
    transform: scale(1.05);
    opacity: 1;
}

.info {
    width: 100%;
    max-width: 544px;
    margin: auto;
    padding: 0 1.5rem;
    border-spacing: 0;
    text-align: left;
}

.info tr {
    transition: all 0.3s ease;
}

.info tr:hover {
    background-color: rgba(0, 187, 221, 0.05);
    transform: translateX(5px);
}

.info th,
.info td {
    border-bottom: 1px solid #c9c2bc;
    transition: all 0.3s ease;
}

.info th {
    text-align: left;
    font-weight: normal;
    padding: 1rem;
}

.info td {
    padding: 1rem 0;
}

/* SNSアイコンのアニメーション */
.about img[src*="xlogo"] {
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.about img[src*="xlogo"]:hover {
    transform: scale(1.1) rotate(5deg);
    filter: brightness(1.2);
}

/* Time Table セクション
------------------------------- */
.timetable-container {
    margin: 2rem 0;
    padding: 0 1rem;
}

.timetable {
    width: 100%;
    max-width: 600px;
    border-collapse: collapse;
    margin: 0 auto;
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

.timetable td {
    border: 1px solid #e0e0e0;
    padding: 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.timetable td:first-child {
    background: linear-gradient(135deg, #00a01f, #0bd);
    color: white;
    font-weight: bold;
    text-align: center;
    width: 80px;
    font-size: 0.9rem;
}

.timetable td:nth-child(2) {
    background-color: #f9f9f9;
    text-align: left;
    width: auto;
}

.timetable td:nth-child(2):hover {
    background-color: rgba(0, 160, 31, 0.1);
    transform: translateX(3px);
    box-shadow: 0 2px 8px rgba(0, 160, 31, 0.2);
}

/* 休憩時間の行のスタイル */
.timetable tr.break-time td {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.timetable tr.break-time td:first-child {
    background: #888888;
    color: white;
}

.timetable tr.break-time td:nth-child(2) {
    background-color: #e0e0e0;
    color: #666666;
}

.timetable tr.break-time td:nth-child(2):hover {
    background-color: #d0d0d0;
    transform: translateX(2px);
    box-shadow: 0 2px 8px rgba(136, 136, 136, 0.2);
}

/* 特別な時間の行のスタイル（14:10と15:50） */
.timetable tr.special-time td:first-child {
    background: linear-gradient(135deg, #333333, #000000);
    color: white;
}

.timetable tr.special-time td:first-child small {
    font-size: 0.6rem;
    font-weight: normal;
    opacity: 0.9;
    display: block;
    margin-top: 0.2rem;
    font-family: 'Orbitron', monospace;
    letter-spacing: 0.5px;
}

.timetable tr.special-time td:nth-child(2) {
    background-color: #f9f9f9;
    text-align: left;
}

.timetable tr.special-time td:nth-child(2):hover {
    background-color: rgba(51, 51, 51, 0.1);
    transform: translateX(3px);
    box-shadow: 0 2px 8px rgba(51, 51, 51, 0.2);
}

/* タイトルとロゴの横並び配置 */
.title-with-logos {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.3rem;
}

/* タイムテーブル内のポッドキャストロゴ */
.podcast-logos {
    display: flex;
    gap: 0.2rem;
    align-items: center;
}

.mini-podcast-logo {
    width: 70px;
    height: 70px;
    border-radius: 7px;
    object-fit: cover;
    transition: transform 0.2s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.mini-podcast-logo:hover {
    transform: scale(1.1);
}

/* 特別なミキサーロゴ（KON x しぶちょー用） */
.special-mixer-logo {
    width: 50px;
    height: 50px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

/* モバイル版での調整 */
@media (max-width: 799px) {
    .timetable-container {
        padding: 0 0.5rem;
    }
    
    .timetable {
        max-width: 100%;
    }
    
    .timetable td {
        padding: 0.8rem 0.5rem;
        font-size: 0.9rem;
    }
    
    .timetable td:first-child {
        width: 70px;
        font-size: 0.8rem;
    }
    
    .mini-podcast-logo {
        width: 30px;
        height: 30px;
        border-radius: 4px;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    }
    
    .special-mixer-logo {
        width: 25px;
        height: 25px;
        border-radius: 3px;
        box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    }
}

/* Sponsor セクション
------------------------------- */
.sponsor {
    text-align: center;
    padding: 3rem 0;
    margin-top: 2rem;
}

.sponsor .partner-logo {
    max-width: 200px;
    width: 60%;
}

/* Special Thanks セクション
------------------------------- */
.special-thanks {
    text-align: center;
    padding: 3rem 0;
    margin-top: 2rem;
}

.special-thanks-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
    max-width: 800px;
    margin: 2rem auto 0;
    padding: 0 1.5rem;
    justify-items: center;
}

.thanks-logo {
    width: 100%;
    max-width: 120px;
    height: auto;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.thanks-logo:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 160, 31, 0.2);
}

/* モバイル版での調整 */
@media (max-width: 799px) {
    .special-thanks-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.8rem;
        padding: 0 1rem;
    }
    
    .thanks-logo {
        max-width: 80px;
    }
}

/* タブレット版での調整 */
@media (min-width: 600px) and (max-width: 799px) {
    .special-thanks-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 1rem;
    }
    
    .thanks-logo {
        max-width: 100px;
    }
}

.copyright {
    background-color: rgb(0, 0, 0);
    text-align: center;
    padding: 2rem 0;
    margin-top: 6rem;
    color: #fff;
    animation: slideInFromBottom 1s ease-out;
    opacity: 0;
    animation-fill-mode: forwards;
    animation-delay: 1s;
}

.copyright small {
    transition: all 0.3s ease;
}

.copyright small:hover {
    color: #0bd;
    transform: scale(1.1);
}

/* デスクトップ版
------------------------------- */
@media (min-width: 800px) {

    /* 見出し */
    .page-title {
        font-size: 5rem;
    }

    .heading-large {
        font-size: 3rem;
    }

    /* ヘッダー */
    .page-header {
        display: flex;
        justify-content: space-between;
        padding-top: 1.5rem;
    }

    .main-nav {
        font-size: 1.5rem;
    }

    /* HOME */
    .cover-home {
        background-image: url(../images/back.svg), url(../images/side.svg), url(../images/info.svg);
        background-position: center center, center center, center center;
        background-repeat: no-repeat, no-repeat, no-repeat;
        background-size: cover, cover, contain;
    }

    .about {
        margin: 4rem auto 0;
    }

    /* Podcastグリッド - デスクトップ版 */
    .podcast-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
        padding: 0 2rem;
        max-width: 800px;
        margin: 2rem auto 0;
    }

    /* Information セクション - デスクトップ版 */
    .information {
        padding-top: 6rem;
    }

    .info th {
        padding-left: 2.5rem;
    }

    /* デスクトップ版でINFORMATION、SPONSOR、MEDIA SPONSOR、SPECIAL THANKSにフェードインアニメーションを追加 */
    .information.fade-in-hidden,
    .sponsor.fade-in-hidden,
    .page-footer.fade-in-hidden,
    .special-thanks.fade-in-hidden {
        opacity: 0 !important;
        transform: translateY(30px) !important;
        transition: opacity 1s ease, transform 1s ease !important;
    }

    .information.fade-in-visible,
    .sponsor.fade-in-visible,
    .page-footer.fade-in-visible,
    .special-thanks.fade-in-visible {
        opacity: 1 !important;
        transform: translateY(0) !important;
    }

    /* デスクトップ版で全てのフェードインアニメーションを復活 */
    .fade-in-hidden {
        opacity: 0 !important;
        transform: translateY(30px) !important;
        transition: opacity 1s ease, transform 1s ease !important;
    }

    .fade-in-visible {
        opacity: 1 !important;
        transform: translateY(0) !important;
    }
}