/* Marathon-specific styles */
.back-button {
    margin-top: 30px;
}

.back-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 10px 20px;
    border: 2px solid white;
    border-radius: 25px;
    transition: all 0.3s ease;
    display: inline-block;
}

.back-link:hover {
    background: white;
    color: #667eea;
}

.pace-overview {
    text-align: center;
    margin-bottom: 50px;
}

.pace-overview h2 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #2d3748;
}

.pace-overview p {
    font-size: 1.2rem;
    color: #718096;
    max-width: 600px;
    margin: 0 auto;
}

/* Time Grid */
.time-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 80px;
}

.time-card {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.time-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    border-color: #667eea;
}

.time-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.time-badge.elite {
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    color: #744210;
}

.time-badge.advanced {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.time-badge.intermediate {
    background: linear-gradient(135deg, #48bb78, #38a169);
    color: white;
}

.time-badge.beginner {
    background: linear-gradient(135deg, #f093fb, #f5576c);
    color: white;
}

.time-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin: 20px 0 10px;
    color: #2d3748;
}

.time-card p {
    font-size: 1.1rem;
    color: #4a5568;
    margin-bottom: 15px;
    font-weight: 500;
}

.pace-details {
    margin-top: 15px;
}

.pace-details span {
    background: #f7fafc;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #4a5568;
    font-weight: 500;
}

/* Pace Tips */
.pace-tips {
    background: #f8f9fa;
    border-radius: 20px;
    padding: 50px;
    margin-top: 40px;
}

.pace-tips h2 {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 40px;
    color: #2d3748;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.tip-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.tip-card:hover {
    transform: translateY(-3px);
}

.tip-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #2d3748;
}

.tip-card p {
    color: #718096;
    line-height: 1.6;
}

/* Individual Pace Page Styles */
.pace-detail-header {
    text-align: center;
    margin-bottom: 40px;
}

.pace-detail-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #2d3748;
}

.pace-summary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 40px;
    text-align: center;
}

.pace-summary h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.pace-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.pace-stat {
    background: rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.pace-stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.pace-stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.pace-table-container {
    background: white;
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 40px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.pace-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.pace-table th,
.pace-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.pace-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #4a5568;
}

.pace-table tr:hover {
    background: #f8f9fa;
}

.kilometer {
    font-weight: 600;
    color: #2d3748;
}

.split-time {
    font-family: 'Courier New', monospace;
    font-weight: 500;
}

.cumulative-time {
    font-family: 'Courier New', monospace;
    font-weight: 600;
    color: #667eea;
}

/* Responsive Design */
@media (max-width: 768px) {
    .time-grid {
        grid-template-columns: 1fr;
    }
    
    .time-card {
        padding: 25px 20px;
    }
    
    .pace-tips {
        padding: 30px 20px;
    }
    
    .tips-grid {
        grid-template-columns: 1fr;
    }
    
    .pace-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pace-detail-header h1 {
        font-size: 2.2rem;
    }

    .pace-overview h2 {
        font-size: 2rem;
    }

    .pace-overview p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .pace-stats {
        grid-template-columns: 1fr;
    }
    
    .pace-table-container {
        padding: 16px 12px;
        overflow-x: auto;
    }
    
    .pace-table {
        min-width: 480px;
    }

    .time-card h3 {
        font-size: 1.6rem;
    }

    .time-card p {
        font-size: 1rem;
    }

    .back-link {
        padding: 8px 14px;
    }
}