@import url('https://fonts.googleapis.com/css2?family=Fira+Sans:wght@400;600&display=swap');

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

body, input, textarea, button {
    background-color: #f5f5f5;
    font-family: 'Fira Sans', sans-serif;
    font-size: 18px;
}

input, textarea, button {
    background-color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.page-title {
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.row {
    display: flex;
}

.col-left {
    flex: 0 0 42%;
    padding-right: 30px;
}

.col-right {
    flex: 0 0 58%;
    border-left: 2px solid #dee2e6;
    padding-left: 30px;
    display: flex;
    flex-direction: column;
}

.form-control, .btn {
    border-radius: 8px;
}

.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ced4da;
}

.form-control:focus {
    outline: none;
    border-color: #28a745;
}

textarea.form-control {
    resize: vertical;
}

.mb {
    margin-bottom: 8px;
}

.btn {
    display: inline-block;
    padding: 8px 16px;
    border: none;
    cursor: pointer;
}

.btn-green {
    width: 100%;
    background-color: #28a745;
    color: white;
}

.btn-green:hover {
    background-color: #218838;
}

hr.section-divider {
    border: none;
    border-top: 1px solid #dee2e6;
    margin: 20px 0;
}

.error-box {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 15px;
}

.result-title {
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.result-box {
    background-color: #fff;
    border: 2px solid #28a745;
    border-radius: 10px;
    padding: 15px;
    white-space: pre-wrap;
    overflow-x: auto;
    flex: 1;
}