/* Main Container */
.pace-calculator-container {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    max-width: 500px;
    margin: 0 auto;
    padding: 25px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 15px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Header */
.pace-calculator-header {
    text-align: center;
    margin-bottom: 25px;
    color: #2c3e50;
}

.pace-calculator-header h2 {
    margin: 0;
    font-size: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.pace-calculator-header p {
    margin: 10px 0 0;
    color: #7f8c8d;
}

/* Form Styles */
.pace-calculator-form {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #34495e;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group input[type="number"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input[type="number"]:focus {
    border-color: #3498db;
    outline: none;
}

.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 16px;
    background-color: white;
    margin-top: 8px;
}

.time-inputs {
    display: flex;
    align-items: center;
    gap: 10px;
}

.time-inputs input {
    flex: 1;
    text-align: center;
}

.time-inputs span {
    color: #7f8c8d;
    font-weight: bold;
}

/* Buttons */
.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 25px;
}

.calculate-btn, .reset-btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.calculate-btn {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
}

.calculate-btn:hover {
    background: linear-gradient(135deg, #2980b9 0%, #3498db 100%);
    transform: translateY(-2px);
}

.reset-btn {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white;
}

.reset-btn:hover {
    background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%);
    transform: translateY(-2px);
}

/* Results Section */
.pace-calculator-results {
    background: white;
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.pace-calculator-results h3 {
    margin-top: 0;
    color: #2c3e50;
    display: flex;
    align-items: center;
    gap: 10px;
}

.result-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #ecf0f1;
}

.result-item:last-child {
    border-bottom: none;
}

.result-label {
    font-weight: 600;
    color: #34495e;
    display: flex;
    align-items: center;
    gap: 8px;
}

.result-value {
    font-weight: 700;
    color: #3498db;
}

.copy-btn {
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 6px 10px;
    cursor: pointer;
    transition: all 0.2s;
    color: #7f8c8d;
}

.copy-btn:hover {
    background: #e9ecef;
    color: #3498db;
}

/* Responsive Design */
@media (max-width: 600px) {
    .pace-calculator-container {
        padding: 15px;
    }
    
    .form-actions {
        flex-direction: column;
    }
}