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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #e0f7fa, #b2ebf2);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    min-height: 100vh;
    overflow-y: auto;
}

.container {
    width: 50%;
    background: white;
    padding: 30px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease;
}

.container:hover {
    transform: scale(1.02);
}

h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: bold;
}

label {
    font-size: 16px;
    font-weight: bold;
    display: block;
    margin-top: 15px;
    color: #444;
    text-align: left;
}

textarea, select, input {
    width: 100%;
    padding: 12px;
    margin-top: 8px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 16px;
    transition: border 0.3s ease, box-shadow 0.3s ease;
}

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

textarea:focus, select:focus, input:focus {
    border-color: #4CAF50;
    box-shadow: 0 0 5px rgba(76, 175, 80, 0.3);
    outline: none;
}

select {
    cursor: pointer;
    background-color: #fff;
}

button {
    background: #4CAF50;
    color: white;
    padding: 12px 20px;
    margin-top: 20px;
    border: none;
    cursor: pointer;
    border-radius: 6px;
    font-size: 16px;
    width: 100%;
    transition: background 0.3s ease, transform 0.2s;
}

button:disabled {
    background: #ccc;
    cursor: not-allowed;
}

button:hover:not(:disabled) {
    background: #388E3C;
    transform: scale(1.03);
}

#number_label, #number {
    display: none;
}

#charCount {
    font-size: 14px;
    color: #666;
    margin-top: 5px;
    text-align: right;
}

.result-section {
    margin-top: 20px;
    padding: 15px;
    background-color: #f0fff0;
    border-left: 5px solid #4CAF50;
    border-radius: 6px;
    font-size: 16px;
    text-align: left;
    font-weight: 500;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* Loading Spinner */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 5px solid rgba(0, 0, 0, 0.1);
    border-top: 5px solid #4CAF50;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

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

@media (max-width: 768px) {
    .container {
        width: 90%;
        padding: 20px;
    }
}