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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

.hidden {
    display: none !important;
}

/* Login Styles */
#login-container {
    max-width: 400px;
    margin: 100px auto;
    padding: 30px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

#login-container h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #2c3e50;
}

#login-form {
    display: flex;
    flex-direction: column;
}

#login-form input {
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

#login-form button {
    padding: 12px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

#login-form button:hover {
    background-color: #2980b9;
}

/* Dashboard Styles */
#dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #e1e4e8;
}

.user-info {
    display: flex;
    align-items: center;
}

#user-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
}

#user-name {
    margin: 0;
    color: #2c3e50;
}

#user-level {
    color: #7f8c8d;
    font-size: 14px;
}

.header-actions {
    display: flex;
    align-items: center;
}

#user-points {
    font-size: 18px;
    font-weight: bold;
    color: #3498db;
    margin-right: 20px;
}

#logout-button {
    padding: 8px 12px;
    background-color: #e74c3c;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

/* Stats Overview */
.stats-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.chart-container {
    height: 200px;
    margin-bottom: 15px;
}

.points-list {
    list-style: none;
    max-height: 200px;
    overflow-y: auto;
}

.points-list li {
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    justify-content: space-between;
}

.points-list li:last-child {
    border-bottom: none;
}

/* Kanban Board */
.kanban-board {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding: 20px 0;
    margin-bottom: 30px;
}

.kanban-column {
    min-width: 300px;
    background-color: #f5f7fa;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.column-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e1e4e8;
}

.task-container {
    min-height: 200px;
}

.task-card {
    background-color: white;
    border-radius: 6px;
    padding: 15px;
    margin-bottom: 10px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.task-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
}

.task-title {
    font-weight: 600;
    margin-bottom: 8px;
}

.task-details {
    font-size: 14px;
    color: #666;
}

.task-meta {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    font-size: 12px;
}

.priority-high {
    color: #e74c3c;
}

.priority-medium {
    color: #f39c12;
}

.priority-low {
    color: #3498db;
}

.points-badge {
    background-color: #2ecc71;
    color: white;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: bold;
}

/* Dashboard Section */
.dashboard-section {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.dashboard-section h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

/* Leaderboard Table */
.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
}

.leaderboard-table th, 
.leaderboard-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e1e4e8;
}

.leaderboard-table th {
    background-color: #f8f9fa;
    font-weight: 600;
}

.leaderboard-table tr:nth-child(1) td {
    background-color: #fef9e7;
}

.leaderboard-table tr:nth-child(2) td {
    background-color: #f9fafe;
}

.leaderboard-table tr:nth-child(3) td {
    background-color: #fef0ec;
}

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

.modal-content {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.close-button {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 24px;
    cursor: pointer;
}

#modal-task-title {
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e1e4e8;
}

#modal-task-details {
    margin-bottom: 20px;
}

#modal-task-details p {
    margin-bottom: 10px;
}

/* Form Styles */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    min-height: 100px;
}

.form-group input[type="file"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.submit-button {
    padding: 10px 15px;
    background-color: #2ecc71;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .stats-overview {
        grid-template-columns: 1fr;
    }
    
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        margin-top: 15px;
    }
    
    .kanban-board {
        flex-direction: column;
    }
    
    .kanban-column {
        min-width: 100%;
    }
}