:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --background-color: #f3f4f6;
    --text-color: #1f2937;
    --border-color: #d1d5db;
}

html {
    font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}

body {
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    background-color: var(--background-color);
    color: var(--text-color);
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    width: 100%;
    box-sizing: border-box;
    position: relative;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    width: 100%;
}

.lang-selector {
    position: absolute;
    top: 1.5rem;
    right: 2rem;
    display: flex;
    gap: 0.5rem;
    font-size: 0.9rem;
    z-index: 10;
}

.lang-selector select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-color: transparent;
    color: var(--text-color);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    min-width: 60px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%231f2937' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    padding-right: 2rem;
    height: 36px;
}

.lang-selector select:hover {
    border-color: var(--primary-color);
}

.lang-selector select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.logo-container {
    text-align: center;
    margin-bottom: 1rem;
}

.logo-container img {
    max-width: 250px;
    height: auto;
    width: 100%;
}

h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.converter-form {
    display: grid;
    gap: 1.5rem;
    width: 100%;
}

.form-group {
    display: block;
    gap: 0.5rem;
    width: 100%;
}

label {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

select, input[type="file"], input[type="password"], textarea {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    width: 100%;
    box-sizing: border-box;
}

textarea {
    resize: vertical;
    min-height: 120px;
}

input[type="file"] {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    width: 100%;
    box-sizing: border-box;
}

button {
    background-color: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    display: block;
}

button:hover {
    background-color: var(--secondary-color);
}

button:disabled {
    background-color: var(--border-color);
    cursor: not-allowed;
}

.status {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 4px;
    width: 100%;
    box-sizing: border-box;
}

.status.error {
    background-color: #fee2e2;
    color: #dc2626;
    margin-bottom: 1.5rem;
}

.status.success {
    background-color: #dcfce7;
    color: #16a34a;
    margin-bottom: 1.5rem;
}

#passwordGroup {
    display: none;
}

#privateKeyGroup {
    display: none;
}

/* Radio button group styling to look like buttons */
.radio-button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 10px;
    width: 100%;
}

.radio-button-group input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-button-group label {
    display: inline-block;
    padding: 8px 16px;
    background-color: #f3f4f6;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    font-weight: 500;
    flex: 1 1 auto;
    min-width: 80px;
    margin-bottom: 0;
}

.radio-button-group input[type="radio"]:checked + label {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.radio-button-group label:hover {
    border-color: var(--primary-color);
}

/* Footer style */
.footer {
    margin-top: 2rem;
    text-align: center;
    color: #64748b;
    font-size: 0.85rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.footer p {
    margin: 0;
}

/* Responsive styles */
@media (max-width: 768px) {
    .container {
        padding: 1.5rem;
    }

    .lang-selector {
        top: 1rem;
        right: 1.5rem;
    }

    .lang-selector select {
        font-size: 0.8rem;
        padding: 0.2rem 0.5rem;
        padding-right: 1.8rem;
        min-width: 50px;
    }

    h1 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .radio-button-group {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .radio-button-group label {
        width: 100%;
        box-sizing: border-box;
        font-size: 0.9rem;
    }

    button {
        width: 100%;
        max-width: none;
    }

    .clear-file-btn {
        width: 100%;
        max-width: none;
        margin: 0;
        padding: 12px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 1rem;
        border-radius: 6px;
    }

    .lang-selector {
        top: 0.8rem;
        right: 1rem;
    }

    .lang-selector select {
        font-size: 0.75rem;
        padding: 0.15rem 0.4rem;
        padding-right: 1.5rem;
        background-size: 12px;
        background-position: right 0.3rem center;
    }

    h1 {
        font-size: 1.3rem;
        margin-bottom: 1.2rem;
    }

    .form-group {
        gap: 0.4rem;
    }

    input[type="file"], input[type="password"], textarea, select {
        padding: 0.6rem;
        font-size: 0.9rem;
    }

    label {
        font-size: 0.9rem;
    }

    .radio-button-group {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    .radio-button-group label {
        padding: 6px 8px;
        font-size: 0.85rem;
    }

    button {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
}

.file-input-group {
    display: flex;
    align-items: center;
    gap: 10px; /* Space between the input and button */
}

.file-input-group input[type="file"] {
    flex: 1; /* Allow the input to take up available space */
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.btn-clear-file {
    background-color: #dc2626;
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 100px;
}

.btn-clear-file:hover {
    background-color: #b91c1c;
}

.btn-clear-file:disabled {
    background-color: var(--border-color);
    cursor: not-allowed;
}

.txt-label {
    display: flex;
    margin-top: 20px;
    margin-bottom: 0;
}