/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #e0e0e0;
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部导航 */
header {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px 30px;
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

header h1 {
    font-size: 28px;
    background: linear-gradient(135deg, #00b894, #00cec9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

nav a {
    color: #a0a0a0;
    text-decoration: none;
    margin-left: 20px;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s;
}

nav a:hover, nav a.active {
    background: rgba(0, 206, 201, 0.2);
    color: #00cec9;
}

/* 统计卡片 */
.stats-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card.highlight {
    background: linear-gradient(135deg, rgba(0, 184, 148, 0.2), rgba(0, 206, 201, 0.2));
    border: 1px solid rgba(0, 206, 201, 0.3);
}

.stat-value {
    font-size: 36px;
    font-weight: bold;
    background: linear-gradient(135deg, #00b894, #00cec9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: #a0a0a0;
    margin-top: 5px;
    font-size: 14px;
}

/* 标签切换 */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tab-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #a0a0a0;
    padding: 12px 24px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
}

.tab-btn:hover {
    background: rgba(0, 206, 201, 0.1);
    border-color: rgba(0, 206, 201, 0.3);
}

.tab-btn.active {
    background: linear-gradient(135deg, #00b894, #00cec9);
    color: #fff;
    border-color: transparent;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* 比赛卡片网格 */
.matches-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.match-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    cursor: pointer;
}

.match-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 206, 201, 0.2);
}

.match-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.match-round {
    background: rgba(0, 206, 201, 0.2);
    color: #00cec9;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
}

.match-time {
    color: #a0a0a0;
    font-size: 12px;
}

.match-teams {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 15px 0;
}

.team {
    text-align: center;
    flex: 1;
}

.team-name {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 5px;
}

.team-flag {
    font-size: 32px;
}

.vs {
    font-size: 14px;
    color: #a0a0a0;
    margin: 0 10px;
}

.match-score {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin: 15px 0;
    font-size: 28px;
    font-weight: bold;
}

.score-box {
    background: rgba(0, 206, 201, 0.1);
    padding: 10px 20px;
    border-radius: 10px;
}

.match-predictions {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.prediction-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    font-size: 13px;
}

.prediction-algorithm {
    color: #00cec9;
}

.prediction-result {
    background: rgba(0, 206, 201, 0.1);
    padding: 2px 8px;
    border-radius: 5px;
}

.prediction-result.correct {
    background: rgba(46, 213, 115, 0.2);
    color: #2ed573;
}

.prediction-result.wrong {
    background: rgba(255, 71, 87, 0.2);
    color: #ff4757;
}

/* 算法卡片 */
.algorithms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.algorithm-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    cursor: pointer;
}

.algorithm-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 206, 201, 0.2);
}

.algorithm-name {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #00cec9;
}

.algorithm-desc {
    color: #a0a0a0;
    font-size: 13px;
    margin-bottom: 15px;
}

.algorithm-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    text-align: center;
}

.algo-stat {
    padding: 10px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
}

.algo-stat-value {
    font-size: 18px;
    font-weight: bold;
    color: #00cec9;
}

.algo-stat-label {
    font-size: 11px;
    color: #a0a0a0;
}

/* 弹窗 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    overflow: auto;
}

.modal-content {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    margin: 5% auto;
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 600px;
    position: relative;
    box-shadow: 0 10px 40px rgba(0, 206, 201, 0.2);
    max-height: 80vh;
    overflow-y: auto;
}

.close {
    position: absolute;
    right: 20px;
    top: 15px;
    color: #a0a0a0;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}

.close:hover {
    color: #ff4757;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #a0a0a0;
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #e0e0e0;
    font-size: 14px;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00cec9;
    box-shadow: 0 0 0 3px rgba(0, 206, 201, 0.1);
}

.form-group input[type="range"] {
    padding: 0;
    height: 8px;
}

/* 按钮 */
.btn-primary {
    background: linear-gradient(135deg, #00b894, #00cec9);
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    transition: all 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 206, 201, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #e0e0e0;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

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

.btn-danger {
    background: rgba(255, 71, 87, 0.2);
    color: #ff4757;
    border: 1px solid rgba(255, 71, 87, 0.3);
    padding: 6px 12px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.3s;
}

.btn-danger:hover {
    background: rgba(255, 71, 87, 0.4);
}

.btn-small {
    padding: 6px 12px;
    font-size: 12px;
}

/* 表格 */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    overflow: hidden;
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.data-table th {
    background: rgba(0, 206, 201, 0.1);
    color: #00cec9;
    font-weight: bold;
    font-size: 13px;
}

.data-table td {
    font-size: 13px;
}

.data-table tr:hover {
    background: rgba(0, 206, 201, 0.05);
}

/* 管理后台专用样式 */
.admin-section {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 20px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.config-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    align-items: end;
}

/* 状态标签 */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
}

.status-upcoming {
    background: rgba(255, 193, 7, 0.2);
    color: #ffc107;
}

.status-finished {
    background: rgba(46, 213, 115, 0.2);
    color: #2ed573;
}

.status-active {
    background: rgba(0, 206, 201, 0.2);
    color: #00cec9;
}

.status-inactive {
    background: rgba(255, 71, 87, 0.2);
    color: #ff4757;
}

/* 响应式 */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        text-align: center;
    }

    nav {
        margin-top: 15px;
    }

    nav a {
        margin: 5px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .match-score {
        font-size: 20px;
    }

    .stats-overview {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .stats-overview {
        grid-template-columns: 1fr;
    }

    .matches-grid,
    .algorithms-grid {
        grid-template-columns: 1fr;
    }
}