:root{
    /*Structure ----------------*/
    --header-height: 70px;
    --max-width:1200px;
    --side-padding: 0px 24px;
    --border-radius: 25px;

    /* Animations */
    --basicTransition: all 0.4s ease;
    /*Colors ----------------*/
    /* NEUTROS */
    --c-dark:#131313;
    --c-dark-transparent:#13131300;
    --c-dark-soft: #1E1E1E;
    --c-dark-muted: #2C2C2C;
    --c-light:#FFFFFF;
    --c-light-soft: #F4F4F4;
    --c-gray:#a8a8a8;

    /* MARCA — Aurora Boreal */
    --c-primary:       #155b55;
    --c-primary-dark:  #13968a;
    --c-primary-light: rgb(15, 231, 209);
    --c-primary-glow:  rgba(61, 220, 151, 0.15);

    /* TEXT --------------- */
    /* Color */
    --c-txt-dark:      #FFFFFF;
    --c-txt-light:     #131313;
    --c-txt-muted:     #888888;

    /* Line-height */
    --lh-body: 1.6;
    --lh-heading: 1.2;

    /* Space */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 3rem;
    --space-xl: 5rem;
}
/* GENERAL --------------------------- */
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: var(--lh-body); 
    background-image:url(/img/bg-mp.svg);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-color: var(--c-dark);
}
.container{
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--side-padding);
}
/* Text -----*/
h1, h2, h3, h4 {
    line-height: var(--lh-heading);
    color: var(--c-txt-dark);
    font-weight: 600;
    margin-top: 0;
    margin-bottom: var(--space-sm); 
}
h1 { 
    font-size: 6rem;
    text-transform: uppercase;
    font-weight: 700;
}
h2 { font-size: 3rem; }
h3 { font-size: 2rem; margin-top: var(--space-md); }
h4 { font-size: 1.5rem; margin-top: var(--space-md); }
p{
    font-size: 1.2rem;   
    margin-bottom: var(--space-md); 
}
li{
    font-size: 1.2rem;   
}
a {
    font-size: 1rem;
    font-weight: 600; 
    text-transform: uppercase; 
    letter-spacing: 0.1em;
    color: var(--c-light);
    text-decoration: none;
    transition: var(--basicTransition);
}
/*------------------------------------ */

/* HEADER --------------------------- */
.header-section{
    width: 100%;
    height: var(--header-height);
    position: fixed;
    top: 0;
    z-index: 1000;
    background-color: var(--c-dark);
}
.header-container{
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header-img img{
    height: 40px;
    width: auto;
}
.header-nav ul{
    display: flex;
    align-content: center;
    justify-content: center;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.header-nav a{
    color: var(--c-gray);
}
.header-nav a:hover{
    color: var(--c-light);
}

/* FOOTER --------------------------- */
.footer-section {
    position: relative;
    z-index: 10;
    width: 100%;
    background-color: var(--c-dark);
}

.footer-container{
    padding: 10vh 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--c-gray);
}
.footer-container p{
    line-height: 0.2rem;
}

/* Responsive ------------------ */
@media (max-width: 768px) {
    /* Hamburger button */
    .header-menu-btn {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 8px;
        z-index: 1001;
    }
    .header-menu-btn span {
        display: block;
        width: 24px;
        height: 2px;
        background-color: var(--c-light);
        transition: var(--basicTransition);
    }
    /* Animación X al abrirse */
    .header-menu-btn.open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .header-menu-btn.open span:nth-child(2) {
        opacity: 0;
    }
    .header-menu-btn.open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* Nav desplegable */
    .header-nav {
        display: none;
        position: fixed;
        inset: 0;
        top: var(--header-height);
        background-color: var(--c-dark);
        z-index: 999;
        padding: 3rem 2rem;
    }
    .header-nav.open {
        display: flex;
    }
    .header-nav ul {
        flex-direction: column;
        gap: 2rem;
        align-items: flex-start;
    }
    .header-nav a {
        font-size: 1.5rem;
        color: var(--c-light);
    }

    /* Ocultar botón en desktop */
    h1 { font-size: 3rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.2rem; }
    p  { font-size: 1rem; }
    .header-nav ul { gap: 16px; }
    .header-nav a  { font-size: 0.8rem; }
}
/* Ocultar botón en desktop */
@media (min-width: 769px) {
    .header-menu-btn { display: none; }
}