body {
    font-family: 'Helvetica Neue', sans-serif;
    background-color: #f9f9f9;
    margin: 0;
    color: #333;
}

header {
    background-color: #4a90e2;
    color: white;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    text-align: center; 
}

.logo {
    width: 40px;
    height: auto;
}

main {
    max-width: 1000px;
    margin: 40px auto;
    padding: 0 20px;
}

.site-description {
    max-width: 800px;
    margin: 0 auto 30px auto;
    background: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: center;
    font-size: 16px;
    line-height: 1.6;
    border: 2px solid #4a90e2; 
}


.input-section {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.input-box {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.input-box .banner {
    background-color: #4a90e2;
    color: white;
    padding: 8px;
    font-weight: bold;
    border-radius: 5px 5px 0 0;
}

.form-container {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.textbox-container {
    position: relative;
    flex: 1;
    min-width: 400px; 
    max-width: 650px;
    display: flex;
    flex-direction: column;
}

.box-header {
    width: 100%;
    box-sizing: border-box;
    background-color: #4a90e2;
    color: white;
    padding: 8px 12px;
    font-size: 16px;
    font-weight: bold;
    border-top-left-radius: 6px;
    border-top-right-radius: 6px;
}

.textbox-container textarea {
    width: 100%;
    box-sizing: border-box;
    height: 300px;
    padding: 12px;
    border: 2px solid #4a90e2;
    border-top: none;
    border-bottom-left-radius: 6px;
    border-bottom-right-radius: 6px;
    resize: vertical;
    font-size: 14px;
}

.char-count {
    position: absolute;
    bottom: 8px;
    right: 12px;
    font-size: 12px;
    color: #aaa;
}

.textarea-group {
    flex: 1;
    min-width: 300px;
    position: relative;
}

textarea {
    height: 300px;
    resize: vertical;
    border: 1px solid #ccc;
    padding: 10px;
    border-radius: 0 0 5px 5px;
    font-family: monospace;
}

.char-counter {
    text-align: right;
    font-size: 12px;
    color: #666;
    margin-top: 4px;
}

.generate-btn {
    display: block;
    margin: 20px auto; 
    background-color: #50e3c2;
    color: #333;
    padding: 12px 30px;
    font-size: 16px;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.generate-btn:hover {
    background-color: #3ac9a5;
    transform: scale(1.02);
}

.spinner {
    text-align: center;
    margin-top: 20px;
}

.loader {
    border: 6px solid #f3f3f3;
    border-top: 6px solid #4a90e2;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.output-section {
    margin-top: 40px;
    text-align: center;
}

.preview-box {
    background: white;
    border: 1px solid #ddd;
    padding: 20px;
    margin-top: 20px;
    max-height: 400px;
    overflow-y: auto;
    text-align: left;
}

.download-btn {
    display: inline-block;
    margin-top: 20px;
    background: #4a90e2;
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    text-decoration: none;
    transition: background 0.3s;
}

.download-btn:hover {
    background: #357ab8;
}

footer {
    background: #f1f1f1;
    text-align: center;
    padding: 15px;
    margin-top: 40px;
    font-size: 14px;
    color: #777;
}