/* static/css/styles.css */
/* SpoonLabs 가이드라인 적용 버전 */
@import url('https://fonts.googleapis.com/css2?family=Pretendard:wght@300;400;500;600;700&display=swap');

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

:root {
    /* SpoonLabs 컬러 시스템 */
    --labs-black: #000000;
    --labs-white: #FFFFFF;
    --labs-dark-grey: #3E3E3E;
    --labs-light-grey: #F7F6F9;
    --alive-orange: #FF6600;
    --vigloo-mint: #00FFDD;
    --spoon-gradient-start: #FF7839;
    --spoon-gradient-middle: #FF570B;
    --spoon-gradient-end: #FF6600;
    --labs-gradient-start: #00FFDD;
    --labs-gradient-middle: #6C93FF;
    --labs-gradient-end: #FF8600;
}

body {
    font-family: 'Pretendard', 'Noto Sans KR', sans-serif;
    background-color: var(--labs-light-grey);
    color: var(--labs-black);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: var(--labs-black);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header h1 {
    text-align: center;
    color: var(--labs-white);
    margin-bottom: 20px;
    font-weight: 700;
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    flex-wrap: wrap;
}

nav ul li {
    margin: 0 10px;
}

nav ul li a {
    text-decoration: none;
    color: var(--labs-light-grey);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: inline-block;
    margin-bottom: 5px;
}

nav ul li a:hover, nav ul li a.active {
    background: linear-gradient(to right, var(--spoon-gradient-start), var(--spoon-gradient-end));
    color: var(--labs-white);
}

/* static/css/styles.css 계속 */
main {
    background-color: var(--labs-white);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 30px;
    margin-bottom: 30px;
}


.tournament-info {
    background-color: #e8f4fc;
    padding: 15px;
    margin-bottom: 30px;
    border-radius: 5px;
    border-left: 5px solid var(--labs-gradient-middle);
}

.bracket {
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.bracket h2 {
    color: var(--labs-black);
    margin-bottom: 20px;
    font-size: 1.8rem;
    padding-bottom: 10px;
    border-bottom: 2px solid #eee;
    font-weight: 600;
}

.winners-bracket h2 {
    color: var(--alive-orange);
}

.losers-bracket h2 {
    color: var(--labs-dark-grey);
}

.grand-finals h2 {
    background: linear-gradient(to right, var(--labs-gradient-start), var(--labs-gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.tournament-bracket {
    display: flex;
    justify-content: space-between;
    overflow-x: auto;
    padding-bottom: 20px;
}

.round {
    flex: 1;
    min-width: 250px;
    margin: 0 10px;
}

.round h2, .round h3 {
    text-align: center;
    color: var(--labs-black);
    margin-bottom: 20px;
    font-size: 1.5rem;
    font-weight: 600;
}

.round h3 {
    font-size: 1.2rem;
}

.matches {
    display: flex;
    flex-direction: column;
}

.match {
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.match:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.match.note {
    padding: 15px;
    background-color: var(--labs-light-grey);
    border-left: 4px solid var(--labs-gradient-middle);
}

.player {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    border-bottom: 1px solid #eee;
}

.player:last-child {
    border-bottom: none;
}

.player.winner {
    background-color: #e6f7ff;
    font-weight: bold;
}

.player-name {
    flex: 1;
}

/* 토너먼트 방식 선택 화면 전용 스타일 */
.tournament-selection h2 {
    color: var(--labs-black);
    margin-bottom: 20px;
}
.tournament-selection .info-text {
    color: var(--labs-dark-grey);
    margin-bottom: 30px;
}
.tournament-types .tournament-type {
    background-color: var(--labs-white);
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}
.tournament-types .tournament-type-header h3 {
    color: var(--alive-orange);
    padding: 15px;
    background-color: var(--labs-black);
    border-radius: 8px 8px 0 0;
    font-size: 1.5rem;
}
.tournament-types .tournament-type-content p,
.tournament-types .tournament-type-content li {
    color: var(--labs-black);
}
.tournament-types .select-btn {
    background: linear-gradient(to right, var(--spoon-gradient-start), var(--spoon-gradient-end));
    color: var(--labs-white);
    font-weight: 600;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 15px;
}
.tournament-types .select-btn:hover {
    opacity: 0.9;
}

.score {
    width: 50px;
    padding: 5px;
    text-align: center;
    border: 1px solid #ddd;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.score:focus {
    border-color: var(--labs-gradient-middle);
    outline: none;
    box-shadow: 0 0 0 2px rgba(108, 147, 255, 0.2);
}

.admin-panel {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.admin-panel h3 {
    color: var(--labs-black);
    margin-bottom: 10px;
    font-weight: 600;
}

.reset-btn, .save-btn, .add-btn {
    background-color: #e74c3c;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    margin-top: 15px;
    transition: background-color 0.3s ease;
    font-family: 'Pretendard', sans-serif;
}

.save-btn {
    background: linear-gradient(to right, var(--labs-gradient-start), var(--labs-gradient-middle));
}

.add-btn {
    background: linear-gradient(to right, var(--spoon-gradient-start), var(--spoon-gradient-end));
    margin-left: 10px;
}

.reset-btn:hover {
    background-color: #c0392b;
}

.save-btn:hover {
    opacity: 0.9;
}

.add-btn:hover {
    opacity: 0.9;
}

.players-management {
    max-width: 800px;
    margin: 0 auto;
}

.players-management h2 {
    color: var(--labs-black);
    margin-bottom: 30px;
    text-align: center;
    font-weight: 600;
}

.match-players {
    background-color: var(--labs-light-grey);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.match-players:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.match-players h3 {
    color: var(--labs-black);
    margin-bottom: 15px;
    font-size: 1.2rem;
    font-weight: 600;
}

.player-input {
    margin-bottom: 15px;
}

.player-input label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.player-input input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: 'Pretendard', sans-serif;
    transition: all 0.2s ease;
}

.player-input input:focus {
    border-color: var(--labs-gradient-middle);
    outline: none;
    box-shadow: 0 0 0 2px rgba(108, 147, 255, 0.2);
}

.info-text {
    background-color: var(--labs-light-grey);
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    line-height: 1.6;
}

.player-list {
    background-color: var(--labs-light-grey);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.form-actions {
    display: flex;
    gap: 10px;
}

.tournament-structure {
    background-color: var(--labs-light-grey);
    border-radius: 8px;
    padding: 20px;
    margin-top: 30px;
}

.tournament-structure h3 {
    color: var(--labs-black);
    margin-bottom: 15px;
    font-weight: 600;
}

.tournament-structure ul {
    padding-left: 20px;
}

.tournament-structure li {
    margin-bottom: 8px;
    position: relative;
}

.tournament-structure li::before {
    content: "•";
    color: var(--alive-orange);
    display: inline-block;
    width: 1em;
    margin-left: -1em;
}

.extra-info .match {
    border: none;
    box-shadow: none;
    padding: 10px;
    background-color: var(--labs-light-grey);
    border-left: 4px solid var(--labs-gradient-middle);
}

footer {
    text-align: center;
    color: var(--labs-dark-grey);
    font-size: 0.9rem;
    padding: 20px 0;
}

/* 더블 엘리미네이션 토너먼트 다이어그램 */
.tournament-diagram {
    margin-bottom: 30px;
}

.diagram-container {
    width: 100%;
    overflow-x: auto;
    margin-bottom: 15px;
}

.diagram-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.diagram-legend p {
    display: flex;
    align-items: center;
    margin: 0;
}

.color-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 5px;
}

.color-dot.winners {
    background-color: var(--alive-orange);
}

.color-dot.losers {
    background-color: var(--labs-dark-grey);
}

.color-dot.finals {
    background: linear-gradient(to right, var(--labs-gradient-start), var(--labs-gradient-end));
}

.dashed-line {
    display: inline-block;
    width: 20px;
    height: 0;
    border-top: 2px dashed var(--labs-dark-grey);
    margin-right: 5px;
}

.tournament-info.error {
    background-color: #fdf0f0;
    border-left: 5px solid #e74c3c;
    padding: 20px;
    margin-bottom: 30px;
}

.tournament-info.error p {
    margin-bottom: 15px;
}

.tournament-info.error p:last-child {
    margin-bottom: 0;
}

.button {
    display: inline-block;
    background: linear-gradient(to right, var(--spoon-gradient-start), var(--spoon-gradient-end));
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 4px;
    margin-top: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.button:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.flash-messages {
    margin-bottom: 20px;
}

.flash-message {
    padding: 12px 15px;
    border-radius: 4px;
    margin-bottom: 10px;
    font-weight: 500;
    animation: fadeIn 0.3s ease-out;
}

.flash-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.flash-message.danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.flash-message.info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

h2 {
    color: var(--labs-black);
    margin-bottom: 20px;
    font-size: 1.8rem;
    font-weight: 600;
}

h3 {
    color: var(--labs-black);
    margin-bottom: 15px;
    font-size: 1.5rem;
    font-weight: 600;
}

.info-text {
    background-color: var(--labs-light-grey);
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    line-height: 1.6;
    border-left: 4px solid var(--labs-gradient-middle);
}

.warning-text {
    background-color: #fff3cd;
    color: #856404;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    border-left: 4px solid #ffc107;
}

.info-text.success {
    background-color: #d4edda;
    border-left: 4px solid #28a745;
    color: #155724;
}

.button, .save-btn, .primary-btn {
    display: inline-block;
    background: linear-gradient(to right, var(--spoon-gradient-start), var(--spoon-gradient-end));
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 4px;
    border: none;
    margin-top: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    font-family: 'Pretendard', sans-serif;
    cursor: pointer;
}

.button:hover, .save-btn:hover, .primary-btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.cancel-btn {
    display: inline-block;
    background-color: #f0f0f0;
    color: var(--labs-dark-grey);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 4px;
    border: none;
    margin-left: 10px;
    margin-top: 15px;
    transition: all 0.3s ease;
    font-family: 'Pretendard', sans-serif;
    cursor: pointer;
}

.cancel-btn:hover {
    background-color: #e0e0e0;
    transform: translateY(-2px);
}

.danger-btn {
    background-color: #e53935;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 10px 15px;
    cursor: pointer;
    font-family: 'Pretendard', sans-serif;
    font-weight: 500;
    transition: all 0.3s ease;
}

.danger-btn:hover {
    background-color: #c62828;
    transform: translateY(-2px);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: 'Pretendard', sans-serif;
    transition: all 0.2s ease;
}

.form-control:focus {
    border-color: var(--labs-gradient-middle);
    outline: none;
    box-shadow: 0 0 0 2px rgba(108, 147, 255, 0.2);
}

.form-control.readonly {
    background-color: #f5f5f5;
    cursor: not-allowed;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 10px;
}

.form-actions {
    margin-top: 30px;
    display: flex;
    align-items: center;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    position: relative;
}

.close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 24px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
}

.close:hover {
    color: #555;
}

.status-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

.status-badge.pending {
    background-color: #fff3cd;
    color: #856404;
}

.status-badge.approved {
    background-color: #d4edda;
    color: #155724;
}

.status-badge.rejected {
    background-color: #f8d7da;
    color: #721c24;
}

.admin-badge {
    display: inline-block;
    background: linear-gradient(to right, var(--labs-gradient-start), var(--labs-gradient-middle));
    color: var(--labs-white);
    font-size: 0.8rem;
    padding: 3px 8px;
    border-radius: 12px;
    margin-left: 10px;
}

.user-badge {
    display: inline-block;
    background-color: #f0f0f0;
    color: var(--labs-dark-grey);
    font-size: 0.8rem;
    padding: 3px 8px;
    border-radius: 12px;
}

.hidden {
    display: none;
}

.profile-placeholder {
    width: 64px;
    height: 64px;
    background: linear-gradient(to right, var(--labs-gradient-start), var(--labs-gradient-end));
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

/* 공통 테이블 스타일 */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

thead th {
    background-color: var(--labs-light-grey);
    padding: 12px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid #ddd;
}

tbody td {
    padding: 12px;
    border-bottom: 1px solid #eee;
}

tbody tr:hover {
    background-color: #f5f5f5;
}

.no-data {
    padding: 20px;
    text-align: center;
    color: var(--labs-dark-grey);
    background-color: var(--labs-light-grey);
    border-radius: 4px;
    margin: 20px 0;
}

/* 애니메이션 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 반응형 스타일 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header {
        padding: 15px;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav ul li {
        margin: 5px 0;
    }
    
    main {
        padding: 20px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .button, .save-btn, .cancel-btn {
        width: 100%;
        margin-left: 0;
        margin-bottom: 10px;
        text-align: center;
    }
}

footer {
    text-align: center;
    color: var(--labs-dark-grey);
    font-size: 0.9rem;
    padding: 20px 0;
}


/* 토너먼트 선택 페이지 스타일 */
.tournament-types {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin: 40px 0;
}

.tournament-type {
    background-color: var(--labs-white);
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    max-width: 400px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tournament-type:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.tournament-type-header {
    background-color: var(--labs-black);
    color: white;
    padding: 15px 20px;
}

.tournament-type-content {
    padding: 20px;
}

.tournament-type-features {
    margin: 15px 0;
}

.tournament-type-features li {
    margin-bottom: 8px;
    position: relative;
}

.tournament-type-img {
    width: 100%;
    height: 200px;
    background-color: var(--labs-light-grey);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    border: 1px solid #eee;
}

.select-btn {
    background: linear-gradient(to right, var(--labs-gradient-start), var(--labs-gradient-end));
    color: white;
    border: none;
    border-radius: 4px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    width: 100%;
    transition: all 0.3s ease;
    font-family: 'Pretendard', sans-serif;
    font-weight: 500;
}

.select-btn:hover {
    opacity: 0.9;
}

/* 반응형 미디어 쿼리 */
@media (max-width: 768px) {
    .tournament-bracket {
        flex-direction: column;
    }
    
    .round {
        margin-bottom: 30px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .add-btn {
        margin-left: 0;
        margin-top: 10px;
    }
}


/* static/css/styles.css에 추가 */
/* 참가자 목록 스타일 */
.participants-list {
    margin-bottom: 40px;
}

.participant-actions {
    margin-bottom: 20px;
    display: flex;
    justify-content: flex-end;
}

.participant-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.participant-card {
    background-color: var(--labs-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.participant-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}
.participant-image {
    width: 120px;
    height: 120px;
    border-radius: 50%;  /* 원형 모양으로 만들기 */
    overflow: hidden;    /* 원 밖으로 이미지가 넘치지 않도록 설정 */
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 20px auto 15px;
    background-color: #f5f5f5;
}

.participant-image img {
    width: 100%;       /* 이미지 너비를 컨테이너에 맞춤 */
    height: 100%;      /* 이미지 높이를 컨테이너에 맞춤 */
    object-fit: cover; /* 이미지 비율을 유지하면서 영역을 채움 */
    object-position: center; /* 이미지 중앙 부분이 표시되도록 설정 */
}

/* 프로필 이미지가 없을 때 표시되는 플레이스홀더 스타일 */
.profile-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
    font-weight: bold;
    color: #555;
    background-color: #e0e0e0;
}

.participant-info {
    padding: 15px;
}

.participant-info h3 {
    margin: 0 0 5px 0;
    font-size: 1.2rem;
    font-weight: 600;
}

.type {
    color: var(--labs-dark-grey);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.registration-date, .status {
    font-size: 0.8rem;
    color: #888;
    margin-bottom: 5px;
}

.no-participants {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    background-color: var(--labs-light-grey);
    border-radius: 8px;
    color: var(--labs-dark-grey);
}

/* 참가 신청 폼 스타일 */
.register-form {
    max-width: 600px;
    margin: 0 auto;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: 'Pretendard', sans-serif;
}

.form-control:focus {
    border-color: var(--labs-gradient-middle);
    outline: none;
    box-shadow: 0 0 0 2px rgba(108, 147, 255, 0.2);
}

.cancel-btn {
    display: inline-block;
    background-color: #f0f0f0;
    color: var(--labs-dark-grey);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 4px;
    margin-left: 10px;
    transition: all 0.3s ease;
}

.cancel-btn:hover {
    background-color: #e0e0e0;
}

/* 참가자 목록 관리자용 버튼 스타일 */
.participant-card .admin-participant-controls {
    margin-top: 10px;
    display: flex;
    gap: 8px;
}
.participant-card .admin-participant-controls .approve-btn {
    background-color: var(--labs-gradient-middle);
    color: var(--labs-white);
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
}
.participant-card .admin-participant-controls .approve-btn:hover {
    opacity: 0.9;
}
.participant-card .admin-participant-controls .reject-btn {
    background-color: #e74c3c;
    color: var(--labs-white);
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
}
.participant-card .admin-participant-controls .reject-btn:hover {
    opacity: 0.9;
}
.participant-card .admin-participant-controls .delete-btn {
    background-color: #999;
    color: var(--labs-white);
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
}
.participant-card .admin-participant-controls .delete-btn:hover {
    opacity: 0.8;
}