/* Variables para tema claro y oscuro */
:root {
    --font-main: 'Poppins', sans-serif;
    --color-light-bg: #ffffff;
    --color-light-text: #000000;
    --color-dark-bg: #181818;
    --color-dark-text: #ffffff;
    --border-highlight: #FFFF00;
    --popup-bg: rgba(32, 32, 32, 0.95);
    --button-bg: #06a0dd;
    --button-text: #ffffff;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-light-bg);
    color: var(--color-light-text);
    font-size: 16px;
    text-align: center;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    transition: background-color 0.3s ease, color 0.3s ease;
    border-top: 6px solid var(--border-highlight);
}

/* Tema oscuro */
body.dark-theme {
    background-color: var(--color-dark-bg);
    color: var(--color-dark-text);
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    cursor: pointer;
    font-size: 24px;
    z-index: 1000;
    color: #000; /* Cambiado a color negro */
}

body.dark-theme .theme-toggle {
    color: #fff; /* Cambia el color a blanco en el tema oscuro */
}
button {
    font-family: var(--font-main);
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 4px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: darken(var(--button-bg), 10%);
}

/* Inputs */
input {
    font-family: var(--font-main);
    font-size: 16px;
    padding: 5px;
    margin-top: 10px;
    border: 1px solid var(--border-highlight);
    border-radius: 4px;
    width: calc(100% - 20px);
    box-sizing: border-box;
}

/* Footer */
.footer {
    font-family: var(--font-main);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-light-text);
    margin-top: 50px;
}

/* Caja estilizada */
.box {
    width: 40%;
    margin: 20px auto;
    background: rgba(255, 255, 255, 0.2);
    padding: 35px;
    border: 2px solid var(--color-light-text);
    border-radius: 20px / 50px;
    text-align: center;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Popup */
.overlay {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    visibility: hidden;
    opacity: 0;
    transition: visibility 0.3s, opacity 0.3s;
    z-index: 1000;
}

.overlay:target {
    visibility: visible;
    opacity: 1;
}

.popup {
    margin: 70px auto;
    padding: 20px;
    background: var(--popup-bg);
    border-radius: 10px;
    width: 85%;
    max-width: 600px;
    text-align: left;
    color: var(--color-dark-text);
    position: relative;
    transition: transform 0.3s ease-in-out;
}

.popup h2 {
    margin-top: 0;
    color: var(--color-dark-text);
    font-size: 24px;
}

.popup .close {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 30px;
    font-weight: bold;
    text-decoration: none;
    color: var(--color-dark-text);
}

.userInformation {
    font-size: 15px;
    color: var(--color-dark-text);
}

/* Responsivo */
@media screen and (max-width: 700px) {
    .box, .popup {
        width: 90%;
    }
}