* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
}

.calculator {
    background-color: white;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

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

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}

input[type="date"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

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

select {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    background-color: white;
}

#hour, #minute, #ampm {
    flex: 1;
}

.result {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.current-time {
    margin-bottom: 15px;
    font-size: 14px;
    color: #666;
}

.fee-display {
    text-align: center;
}

.fee-display h2 {
    margin-bottom: 10px;
    color: #2c3e50;
}

.fee {
    font-size: 36px;
    font-weight: bold;
    color: #2980b9;
    margin-bottom: 5px;
}

.duration {
    font-size: 16px;
    color: #7f8c8d;
}

.clear-btn {
    display: block;
    width: 100%;
    padding: 12px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

.clear-btn:hover {
    background-color: #2980b9;
}

.fee-rules {
    background-color: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.fee-rules h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.fee-rules ul {
    list-style-position: inside;
    color: #555;
}

.fee-rules li {
    margin-bottom: 8px;
}

/* Mobile responsiveness */
@media (max-width: 480px) {
    .container {
        padding: 15px;
    }
    
    .calculator {
        padding: 15px;
    }
    
    .fee {
        font-size: 30px;
    }
}