.leaderboard-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    max-height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
}

.leaderboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.leaderboard-header h1 {
    margin: 0;
    font-size: 2.5em;
    color: #333;
}

.leaderboard-filters {
    display: flex;
    gap: 30px;
    margin-bottom: 25px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 15px;
}

.filter-group label {
    font-weight: 600;
    color: #333;
    min-width: 60px;
}

.filter-buttons {
    display: flex;
    gap: 8px;
}

.leaderboard-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    border-bottom: 2px solid #dee2e6;
}

.tab-button {
    padding: 12px 24px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    font-size: 1em;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: -2px;
}

.tab-button:hover {
    color: #007bff;
    background: #f8f9fa;
}

.tab-button.active {
    color: #007bff;
    border-bottom-color: #007bff;
    font-weight: 600;
}

.leaderboard-content {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    max-height: calc(100vh - 400px);
    overflow-y: auto;
    overflow-x: auto;
}

.leaderboard-table {
    width: 100%;
    min-width: 600px;
}

/* Custom scrollbar styling */
.leaderboard-content::-webkit-scrollbar,
.leaderboard-container::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

.leaderboard-content::-webkit-scrollbar-track,
.leaderboard-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 5px;
}

.leaderboard-content::-webkit-scrollbar-thumb,
.leaderboard-container::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

.leaderboard-content::-webkit-scrollbar-thumb:hover,
.leaderboard-container::-webkit-scrollbar-thumb:hover {
    background: #555;
}

.leaderboard-header-row {
    display: grid;
    grid-template-columns: 80px 1fr 150px 100px;
    padding: 15px 20px;
    background: #f8f9fa;
    font-weight: 600;
    color: #666;
    border-bottom: 2px solid #dee2e6;
    text-transform: uppercase;
    font-size: 0.9em;
    letter-spacing: 0.5px;
}

.leaderboard-header-row.overall {
    grid-template-columns: 80px 1fr 120px 120px 120px;
}

.leaderboard-row {
    display: grid;
    grid-template-columns: 80px 1fr 150px 100px;
    padding: 15px 20px;
    border-bottom: 1px solid #e9ecef;
    transition: background 0.2s ease;
    align-items: center;
}

.leaderboard-row.overall {
    grid-template-columns: 80px 1fr 120px 120px 120px;
}

.leaderboard-row:hover {
    background: #f8f9fa;
}

.leaderboard-row.current-user {
    background: #e7f3ff;
    border-left: 4px solid #007bff;
}

.rank-col {
    display: flex;
    align-items: center;
    justify-content: center;
}

.medal {
    font-size: 1.5em;
}

.rank-number {
    font-weight: 600;
    color: #666;
    font-size: 1.1em;
}

.name-col {
    display: flex;
    align-items: center;
    gap: 10px;
}

.you-badge {
    background: #007bff;
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75em;
    font-weight: 600;
}

.score-col {
    text-align: center;
    font-size: 1.1em;
}

.stars-col {
    text-align: center;
    font-size: 1.3em;
}

.no-data {
    text-align: center;
    padding: 60px 20px;
    color: #666;
}

.no-data p {
    font-size: 1.2em;
}

/* Mobile Responsive */
@media screen and (max-width: 768px) {
    .leaderboard-container {
        padding: 10px;
        max-height: 100vh;
        overflow-y: auto;
    }
    
    .leaderboard-content {
        max-height: calc(100vh - 350px);
    }

    .leaderboard-header {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }

    .leaderboard-header h1 {
        font-size: 2em;
    }

    .leaderboard-filters {
        flex-direction: column;
        gap: 15px;
    }

    .filter-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .filter-buttons {
        width: 100%;
        flex-wrap: wrap;
    }

    .leaderboard-header-row,
    .leaderboard-row {
        grid-template-columns: 60px 1fr 100px 60px;
        padding: 12px 10px;
        font-size: 0.9em;
    }

    .leaderboard-header-row.overall,
    .leaderboard-row.overall {
        grid-template-columns: 60px 1fr 80px 80px 80px;
        font-size: 0.85em;
    }

    .rank-col {
        font-size: 0.9em;
    }

    .medal {
        font-size: 1.2em;
    }

    .score-col {
        font-size: 1em;
    }

    .stars-col {
        font-size: 1.1em;
    }
}

/* Mobile Landscape - Optimized for 844x390 */
@media screen and (max-width: 900px) and (orientation: landscape) {
    .leaderboard-container {
        padding: 4px 6px;
        max-width: 100%;
        width: 100%;
        max-height: 100vh;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        box-sizing: border-box;
    }
    
    .leaderboard-header {
        margin-bottom: 6px;
        gap: 8px;
        align-items: center;
    }
    
    .leaderboard-header h1 {
        font-size: 1.2em;
        margin: 0;
    }
    
    .leaderboard-header .btn {
        padding: 5px 10px;
        font-size: 0.8em;
    }
    
    .leaderboard-filters {
        padding: 6px 8px;
        margin-bottom: 6px;
        gap: 6px;
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .filter-group {
        gap: 4px;
        flex-direction: row;
        align-items: center;
        flex: 1;
        min-width: 0;
    }
    
    .filter-group label {
        font-size: 0.75em;
        min-width: 50px;
        flex-shrink: 0;
    }
    
    .filter-buttons {
        gap: 4px;
        flex-wrap: nowrap;
        flex: 1;
    }
    
    .filter-buttons .btn {
        padding: 4px 8px;
        font-size: 0.7em;
        min-width: 50px;
    }
    
    .leaderboard-tabs {
        margin-bottom: 4px;
        gap: 4px;
    }
    
    .tab-button {
        padding: 6px 12px;
        font-size: 0.8em;
        margin-bottom: -2px;
    }
    
    .leaderboard-content {
        flex: 1;
        min-height: 0;
        max-height: none;
        overflow-y: auto;
        overflow-x: hidden;
        padding: 0;
    }
    
    .leaderboard-header-row,
    .leaderboard-row {
        grid-template-columns: 40px 1fr 70px 50px;
        padding: 6px 8px;
        font-size: 0.75em;
    }
    
    .leaderboard-header-row.overall,
    .leaderboard-row.overall {
        grid-template-columns: 40px 1fr 60px 60px 60px;
        font-size: 0.7em;
    }
    
    .rank-col {
        font-size: 0.8em;
    }
    
    .medal {
        font-size: 1em;
    }
    
    .rank-number {
        font-size: 0.9em;
    }
    
    .name-col {
        font-size: 0.8em;
        gap: 4px;
    }
    
    .you-badge {
        padding: 1px 4px;
        font-size: 0.65em;
    }
    
    .score-col {
        font-size: 0.85em;
    }
    
    .stars-col {
        font-size: 1em;
    }
    
    .no-data {
        padding: 20px 10px;
    }
    
    .no-data p {
        font-size: 0.9em;
    }
}

/* Specific optimization for 844x390 landscape phones */
@media screen and (max-width: 900px) and (orientation: landscape) and (max-height: 400px) {
    .leaderboard-container {
        padding: 3px 4px;
        gap: 3px;
    }
    
    .leaderboard-header {
        margin-bottom: 4px;
        gap: 6px;
    }
    
    .leaderboard-header h1 {
        font-size: 1em;
    }
    
    .leaderboard-header .btn {
        padding: 4px 8px;
        font-size: 0.75em;
    }
    
    .leaderboard-filters {
        padding: 4px 6px;
        margin-bottom: 4px;
        gap: 4px;
    }
    
    .filter-group {
        gap: 3px;
    }
    
    .filter-group label {
        font-size: 0.7em;
        min-width: 45px;
    }
    
    .filter-buttons .btn {
        padding: 3px 6px;
        font-size: 0.65em;
        min-width: 45px;
    }
    
    .leaderboard-tabs {
        margin-bottom: 3px;
    }
    
    .tab-button {
        padding: 4px 8px;
        font-size: 0.75em;
    }
    
    .leaderboard-header-row,
    .leaderboard-row {
        grid-template-columns: 35px 1fr 60px 45px;
        padding: 4px 6px;
        font-size: 0.7em;
    }
    
    .leaderboard-header-row.overall,
    .leaderboard-row.overall {
        grid-template-columns: 35px 1fr 50px 50px 50px;
        font-size: 0.65em;
    }
    
    .medal {
        font-size: 0.9em;
    }
    
    .rank-number {
        font-size: 0.8em;
    }
    
    .name-col {
        font-size: 0.75em;
    }
    
    .score-col {
        font-size: 0.8em;
    }
    
    .stars-col {
        font-size: 0.9em;
    }
}