body {
    font-family: Arial, sans-serif;
    line-height: 1.2;
    margin: 0;
    padding: 5px;
    background-color: #f4f4f4;
    font-size: 12px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: white;
    padding: 15px;
    border-radius: 6px;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.1);
}

h2 {
    text-align: center;
    color: #333;
    margin-bottom: 15px;
    font-size: 20px;
}

.form-row {
    display: flex;
    gap: 12px;
    margin-bottom: 10px;
}

.form-group {
    margin-bottom: 10px;
}

.form-group.half-width {
    flex: 1;
    margin-bottom: 0;
}

label {
    display: block;
    margin-bottom: 2px;
    font-weight: bold;
    color: #555;
    font-size: 11px;
}

input[type="number"],
select {
    width: 100%;
    padding: 6px;
    border: 1px solid #ddd;
    border-radius: 3px;
    font-size: 12px;
    box-sizing: border-box;
    height: 32px;
}

button {
    background-color: #007bff;
    color: white;
    padding: 10px 25px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    width: 100%;
    margin-top: 10px;
    height: 40px;
}

button:hover {
    background-color: #0056b3;
}

.result {
    margin-top: 15px;
    padding: 12px;
    border-radius: 4px;
    text-align: center;
    font-size: 14px;
    font-weight: bold;
}

.cancelled {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.not-cancelled {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

code {
    background-color: #f4f4f4;
    padding: 1px 3px;
    border-radius: 3px;
}

@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .form-group.half-width {
        margin-bottom: 10px;
    }

    .container {
        padding: 10px;
        margin: 3px;
    }

    body {
        padding: 3px;
    }
}

/* Form enhancements */
input[type="number"]:focus,
select:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 3px rgba(0, 123, 255, 0.3);
}

button:active {
    transform: translateY(1px);
}

/* Loading state for button */
button:disabled {
    background-color: #6c757d;
    cursor: not-allowed;
}

/* Error styling for invalid inputs */
input:invalid,
select:invalid {
    border-color: #dc3545;
}

/* Success styling for valid inputs */
input:valid,
select:valid {
    border-color: #28a745;
}

/* Additional compact optimizations */
* {
    box-sizing: border-box;
}

/* Make everything more compact */
.container {
    min-height: auto;
}

/* Reduce all vertical spacing */
.form-row:last-of-type {
    margin-bottom: 5px;
}

/* Ensure form fits in viewport */
@media (max-height: 700px) {
    body {
        padding: 2px;
        font-size: 11px;
    }

    .container {
        padding: 10px;
    }

    h2 {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .form-row {
        margin-bottom: 8px;
    }

    input[type="number"],
    select {
        padding: 4px;
        height: 28px;
        font-size: 11px;
    }

    label {
        font-size: 10px;
        margin-bottom: 1px;
    }
}