:root {
    /* Nueva paleta de colores azul */
    --color-50: #EDF3F7;
    --color-100: #CDDFEA;
    --color-200: #ADCADC;
    --color-300: #8DB5CE;
    --color-400: #6DA0C0;
    --color-500: #4985AB;
    --color-600: #3F7292;
    --color-700: #315972;
    --color-800: #234052;
    --color-900: #152732;
    --color-950: #080E12;
    
    /* Variables para el tema */
    --bg-primary: var(--color-950);
    --bg-secondary: var(--color-900);
    --text-primary: var(--color-50);
    --text-secondary: var(--color-100);
    --accent-color: var(--color-400);
    --nav-bg: var(--color-800);
    --nav-hover: var(--color-600);
}

[data-tema="light"] {
    --bg-primary: var(--color-50);
    --bg-secondary: var(--color-100);
    --text-primary: var(--color-950);
    --text-secondary: var(--color-900);
    --accent-color: var(--color-600);
    --nav-bg: var(--color-200);
    --nav-hover: var(--color-400);
}

* {
    margin-top: 0;
    margin-left: 0;
    margin-right: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/*Header*/
header{
    background-color: var(--bg-secondary);
    padding: 20px 0;
    position: relative;
}

h1{
    color: var(--text-primary); 
    text-align: center;
    margin-bottom: 10px;
}

h2 {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 20px;
}

#Foto_Perfil {
    width: 5cm;
    height: 5cm;
    border-radius: 50%;
    display: block;
    margin-left: auto;
    margin-right: auto;
    border: 4px solid var(--accent-color);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* Switch de cambio de tema - Posicionado a la derecha superior */
.row {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

#switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

#switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-600);
    transition: 0.4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: var(--color-50);
    transition: 0.4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--color-400);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/*Body*/
body{
    background-color: var(--bg-primary);
    font-family: 'DM Serif Text' , serif;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

nav{
    display: flex;
    flex-flow: nowrap;
    justify-content: center;
    margin-top: 20px;
}

nav ul{
    list-style-type: none;
    padding: 0;
    margin: 0;
    padding-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

nav li{
    display: inline;
}

nav a {
    text-decoration: none;
    color: var(--text-primary);
    font-size: 16px;
    padding: 12px 24px;
    background-color: var(--nav-bg);
    border-radius: 25px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    display: inline-block;
    font-weight: 500;
}

nav a:hover {
    background-color: var(--nav-hover);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    border-color: var(--accent-color);
}

/*Footer*/
footer {
    padding-top: 20px;
    padding-bottom: 10px;
    background-color: var(--bg-secondary);
    margin-top: auto;
}

#Red_Social {
    margin-left: 5px;
    display: flex;
    flex-direction: row;
    justify-content: left;
    gap: 10px;
}

footer .div{
    display: flex;
    height: 2px;
}

#Contacto{
    display: flex;
    flex-direction: column;
}

footer p{
    padding-left: 5px;
    font-size: medium;
    color: var(--text-secondary);
    margin: 0px;
}

footer h3{
    padding-left: 5px;
    font-size: larger;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.Logo_Red_Social{
    width: 2cm;
    height: 2cm;
    padding: 2px;
    border-radius: 10%;
    transition: transform 0.3s ease;
}

.Logo_Red_Social:hover {
    transform: scale(1.1);
}

/* Responsive design */
@media (max-width: 768px) {
    .row {
        position: relative;
        top: auto;
        right: auto;
        display: flex;
        justify-content: center;
        margin-bottom: 20px;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav a {
        margin: 5px 0;
        width: 200px;
        text-align: center;
    }
    
    #Foto_Perfil {
        width: 4cm;
        height: 4cm;
    }
}