body, h1, p, ul, li {
    margin: 0;
    padding: 0;
}

body {
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    color: #333;
    background: repeating-linear-gradient(
        -45deg,
        #fbfbfb,
        #fbfbfb 10px,
        #ffffff 10px,
        #ffffff 20px
    );
}

.header {
    background-color: #7f1083;
    text-align: center;
    padding: 20px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.logo {
    max-width: 250px;
    height: auto;
}

.tab-menu {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin: 0 auto;
    max-width: 1200px;
    padding: 30px 20px 10px; 
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    z-index: 99;
    background-color: rgba(255, 255, 255, 0.95);
}

.tab-btn {
    background-color: #ffffff;
    border: 2px solid #7f1083;
    color: #7f1083;
    padding: 10px 30px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background-color: #f4e5f5;
}

.tab-btn.active {
    background-color: #7f1083;
    color: #ffffff;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.5s ease forwards; 
}

@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.floating-vote-area {
    position: -webkit-sticky; 
    position: sticky;
    bottom: 30px;
    text-align: center;
    margin-top: 60px;
    margin-bottom: 20px;
    z-index: 100;
    animation: floatUpBtn 0.8s ease forwards;
}

@keyframes floatUpBtn {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.vote-btn {
    display: inline-block;
    background-color: #7f1083;
    color: #ffffff;
    font-size: 18px;
    font-weight: bold;
    text-decoration: none;
    padding: 15px 50px;
    border-radius: 50px;
    box-shadow: none !important; 
    border: 2px solid #ffffff;
    transition: all 0.3s ease;
}

.vote-btn:hover {
    background-color: #ffffff;
    color: #7f1083;
    border: 2px solid #7f1083;
}

/* =========================================
   各期生ごとのタブメニュー（上部ボタン）カラー
========================================= */

/* 3期生 */
.tab-btn[data-tab="gen3"] {
    border-color: #00b7ee;
    color: #00b7ee;
}
.tab-btn[data-tab="gen3"]:hover {
    background-color: #e5f8fe; /* ホバー時の薄い青 */
}
.tab-btn[data-tab="gen3"].active {
    background-color: #00b7ee;
    color: #ffffff;
}

/* 4期生 */
.tab-btn[data-tab="gen4"] {
    border-color: #f19149;
    color: #f19149;
}
.tab-btn[data-tab="gen4"]:hover {
    background-color: #fef4ec; /* ホバー時の薄いオレンジ */
}
.tab-btn[data-tab="gen4"].active {
    background-color: #f19149;
    color: #ffffff;
}

/* 5期生 */
.tab-btn[data-tab="gen5"] {
    border-color: #eb6877;
    color: #eb6877;
}
.tab-btn[data-tab="gen5"]:hover {
    background-color: #fdf0f2; /* ホバー時の薄いピンク */
}
.tab-btn[data-tab="gen5"].active {
    background-color: #eb6877;
    color: #ffffff;
}

/* 6期生 */
.tab-btn[data-tab="gen6"] {
    border-color: #50c6b7;
    color: #50c6b7;
}
.tab-btn[data-tab="gen6"]:hover {
    background-color: #ebf7f0; /* ホバー時の薄い緑 */
}
.tab-btn[data-tab="gen6"].active {
    background-color: #50c6b7;
    color: #ffffff;
}

/* =========================================
   各期生ごとの投票ボタンカラー
========================================= */
/* 3期生*/
.vote-btn.btn-gen3 { background-color: #00b7ee; }
.vote-btn.btn-gen3:hover { color: #ffffff !important; border-color: #00b7ee; }

/* 4期生*/
.vote-btn.btn-gen4 { background-color: #f19149; }
.vote-btn.btn-gen4:hover { color: #ffffff !important; border-color: #f19149; }

/* 5期生*/
.vote-btn.btn-gen5 { background-color: #eb6877; }
.vote-btn.btn-gen5:hover { color: #ffffff !important; border-color: #eb6877; }

/* 6期生*/
.vote-btn.btn-gen6 { background-color: #50c6b7; }
.vote-btn.btn-gen6:hover { color: #ffffff !important; border-color: #50c6b7; }

@media screen and (max-width: 768px) {
    body {
        padding-bottom: 0px;
    }

    .floating-vote-area {
        bottom: 20px;
    }
    .vote-btn {
        font-size: 16px;
        padding: 12px 60px;
    }
}
.tab-pane.active {
    display: block;
}

@media screen and (max-width: 768px) {
    .tab-menu {
        gap: 5px;
        margin: 0 auto;
        padding: 20px 10px 10px;
        top: 0;
    }
    .tab-btn {
        padding: 8px 12px;
        font-size: 13px;
        flex: 1;
    }
}

.main-content {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.photo-item {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    padding: 10px;
    box-sizing: border-box;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.photo-img-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain; 
	margin-bottom: 10px;
}

.photo-text {
    margin: auto 0;
    font-size: 14px;
    line-height: 1.5;
}

.footer {
    background-color: #7f1083;
    text-align: center;
    padding: 30px 0;
    font-size: 14px;
    color: #666;
    margin-top: 40px;
}

@media screen and (max-width: 768px) {
    .main-content {
        margin: 20px auto;
        padding: 0 10px;
    }

    .photo-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }

    .photo-item {
        padding: 6px;
    }

    .photo-text {
        margin-top: 8px;
        font-size: 11px;
    }
}