/* Modo Claro (Por Defecto) */
:root {
    --background-color: #FFFFFF;
    --text-color: #000000;
    --form-bg-color: #F0F0F0;
    --input-bg-color: #FFFFFF;
    --border-color: #CCCCCC;
    --button-bg-color: #E10600;
    --button-hover-bg-color: #BF0404;
}

/* Modo Oscuro */
:root[data-theme="dark"] {
    --background-color: #1D1D1D;
    --text-color: #FFFFFF;
    --form-bg-color: #2C2C2C;
    --input-bg-color: #222222;
    --border-color: #444444;
}

/* Aplicar las Variables */
body {
    font-family: Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    transition: background 0.3s ease, color 0.3s ease;
}

h1 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--button-bg-color);
}

/* Contenedor */
.container {
    text-align: center;
}

/* Formulario */
form {
    background-color: var(--form-bg-color);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0px 4px 10px rgba(255, 255, 255, 0.1);
    width: 320px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: background 0.3s ease;
}

/* Etiquetas */
label {
    display: block;
    font-weight: bold;
    margin: 10px 0 5px;
    text-align: left;
    width: 90%;
}

/* Inputs */
input {
    width: 90%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--input-bg-color);
    color: var(--text-color);
    margin-bottom: 10px;
    transition: background 0.3s ease, color 0.3s ease;
}

/* Botón */
button {
    background-color: var(--button-bg-color);
    color: white;
    border: none;
    padding: 10px 15px;
    margin-top: 15px;
    width: 90%;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 5px;
    transition: background 0.3s ease-in-out;
}

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

/* 🌙 Botón de Cambio de Tema 🌞 */
#theme-toggle {
    position: fixed;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    transition: transform 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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