:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a29bfe;
    --gold-color: #ffd700;
    --silver-color: #c0c0c0;
    --bronze-color: #cd7f32;
    --dark-color: #2d3436;
    --light-color: #f5f6fa;
    --success-color: #00b894;
}

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

body {
    font-family: 'Tajawal', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    padding: 20px;
    color: var(--dark-color);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 15px;
}

.leaderboard-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin-bottom: 30px;
}

.leaderboard-header {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.leaderboard-header h1 {
    font-weight: 700;
    font-size: 2rem;
    margin-bottom: 5px;
    position: relative;
    z-index: 2;
}

.leaderboard-header p {
    opacity: 0.9;
    font-size: 1rem;
    position: relative;
    z-index: 2;
}

.leaderboard-header::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
    z-index: 1;
}

.user-list {
    padding: 0;
    margin: 0;
    list-style: none;
}

.user-item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.user-rank {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: white;
    margin-left: 15px;
    flex-shrink: 0;
    position: relative;
    background-color: var(--primary-color);
}

.user-rank.gold {
    background-color: var(--gold-color);
}

.user-rank.silver {
    background-color: var(--silver-color);
}

.user-rank.bronze {
    background-color: var(--bronze-color);
}

.user-rank.other {
    background-color: var(--light-color);
    color: var(--dark-color);
}

.user-info {
    flex: 1;
    overflow: hidden;
}

.user-name {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-points {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
}

.user-points::after {
    content: "نقطة";
    font-size: 0.9rem;
    color: var(--dark-color);
    opacity: 0.7;
    margin-right: 5px;
}

.medal-icon {
    font-size: 1.5rem;
    margin-right: 10px;
}

.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(108, 92, 231, 0.2);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.error-message {
    background-color: #ffecec;
    color: #ff6b6b;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    margin: 20px;
}

.top-user {
    background: linear-gradient(to right, rgba(108, 92, 231, 0.03), rgba(108, 92, 231, 0.1));
}

@media (max-width: 768px) {
    .leaderboard-header h1 {
        font-size: 1.5rem;
    }
    
    .user-item {
        padding: 12px 15px;
    }
    
    .user-rank {
        width: 40px;
        height: 40px;
        font-size: 1rem;
        margin-left: 10px;
    }
    
    .user-name {
        font-size: 1rem;
    }
    
    .user-points {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .leaderboard-header {
        padding: 15px;
    }
    
    .user-item {
        padding: 10px;
    }
    
    .user-points::after {
        content: "";
        display: none;
    }
}