/* Estilos generales */
body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
    transition: background-color 0.3s, color 0.3s;
}

body.dark-theme {
    background-color: #333;
    color: #f4f4f4;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s, color 0.3s;
}

body.dark-theme .container {
    background-color: #444;
    color: #f4f4f4;
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

.upload-section {
    margin-bottom: 20px;
}

#drop-zone {
    border: 2px dashed #ccc;
    padding: 20px;
    text-align: center;
    border-radius: 10px;
    cursor: pointer;
    transition: border-color 0.3s;
}

#drop-zone:hover {
    border-color: #888;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

input, textarea {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}

input:focus, textarea:focus {
    border-color: #888;
}

.color-picker {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.color-option {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid #ccc;
    transition: transform 0.3s;
}

.color-option[data-color="white"] {
    background-color: white;
}

.color-option[data-color="black"] {
    background-color: black;
}

.color-option[data-color="blue"] {
    background-color: blue;
}

.color-option[data-color="darkred"] {
    background-color: darkred;
}

.color-option[data-color="green"] {
    background-color: green;
}

.color-option:hover {
    transform: scale(1.1);
}

#download-btn {
    padding: 10px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

#download-btn:hover {
    background-color: #0056b3;
}

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

canvas {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.theme-toggle {
    text-align: right;
    margin-bottom: 20px;
}

#theme-toggle-btn {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    transition: transform 0.3s;
}

#theme-toggle-btn:hover {
    transform: scale(1.1);
}

.error-message {
    color: red;
    text-align: center;
    margin-top: 10px;
    display: none;
}