:root {
    --brand-font: 'Arial', sans-serif;
    /* por qué: tipografía pedida */
    --accent: #279a94;
    --text-strong: #ffffff;
    --text-dim: rgba(255, 255, 255, .9);
}

/* ===== Base */
body {
    font-family: var(--brand-font);
    background: #000000;
}

/* por qué: aplica Arial globalmente */

.site-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all .4s ease;
    padding: 1rem 0;
}

.site-header.transparent {
    background: transparent;
}

.site-header.scrolled {
    background: #000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, .3);
    padding: .5rem 0;
}

/* ===== Layout */
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo img {
    height: 50px;
    width: auto;
    display: block;
    transition: all .4s ease;
}

/* ===== NAV: texto a la derecha */
.main-nav {
    margin-left: auto;
}

/* por qué: empuja nav al extremo derecho */
.main-nav ul {
    display: flex;
    gap: 1.1rem;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.main-nav a {
    display: inline-block;
    text-decoration: none;
    color: var(--text-dim);
    font-family: var(--brand-font);
    font-weight: 600;
    letter-spacing: .01em;
    line-height: 1;
    padding: .25rem 0;
    border-bottom: 2px solid transparent;
    /* por qué: evita salto al hover */
    transition: color .25s ease, border-color .25s ease, opacity .25s ease;
}

/* Estado por fondo */
.site-header.transparent .main-nav a {
    color: var(--text-strong);
    opacity: .9;
}

.site-header.scrolled .main-nav a {
    color: var(--text-strong);
    opacity: .95;
}

/* Interacciones */
.main-nav a:hover {
    border-color: var(--accent);
    opacity: 1;
}

.main-nav a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-color: var(--accent);
}

.main-nav a.is-active {
    border-color: var(--accent);
    opacity: 1;
}

/* ===== Limpieza de iconos existentes sin tocar HTML */
.nav-icon,
.cta-icon {
    all: unset;
    display: none !important;
}

/* por qué: oculta el botón viejo sin cambiar estructura */

/* ===== Responsive */
@media (max-width:768px) {
    .header-inner {
        padding: 0 1rem;
    }

    .main-nav ul {
        gap: .85rem;
    }

    .main-nav a {
        font-size: .95rem;
    }
}

:root {
    --panel-w: min(86vw, 420px);
    --panel-bg: rgba(0, 0, 0, .92);
    --panel-blur: 10px;
    --anim: .28s cubic-bezier(.2, .7, .2, 1);
}

/* Por qué: bloquear scroll del documento cuando el panel está abierto */
html.no-scroll,
html.no-scroll body {
    overflow: hidden;
}

/* Botón hamburguesa (se inyecta por JS; oculto en desktop) */
.hamburger-btn {
    all: unset;
    display: none;
    position: relative;
    width: 42px;
    height: 42px;
    cursor: pointer;
    border-radius: 999px;
    transition: background-color var(--anim), transform var(--anim), opacity var(--anim);
}

.hamburger-btn:hover {
    background: rgba(255, 255, 255, .06);
}

.hamburger-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.hamburger-btn .bars {
    position: absolute;
    inset: 0;
    display: block;
}

.hamburger-btn .bars::before,
.hamburger-btn .bars::after,
.hamburger-btn .bar {
    content: "";
    position: absolute;
    left: 10px;
    right: 10px;
    height: 2px;
    background: var(--text-strong);
    border-radius: 2px;
    transition: transform var(--anim), opacity var(--anim), top var(--anim);
}

.hamburger-btn .bar {
    top: 50%;
    transform: translateY(-50%);
}

.hamburger-btn .bars::before {
    top: 14px;
}

.hamburger-btn .bars::after {
    top: 28px;
}

/* Estado “X” al abrir */
.site-header.is-open .hamburger-btn .bars::before {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.site-header.is-open .hamburger-btn .bars::after {
    top: 50%;
    transform: translateY(-50%) rotate(-45deg);
}

.site-header.is-open .hamburger-btn .bar {
    opacity: 0;
    transform: translateY(-50%) scaleX(.3);
}

/* Panel móvil */
@media (max-width: 1024px) {
    .hamburger-btn {
        display: inline-block;
    }

    /* Drawer derecho */
    .main-nav {
        position: fixed;
        top: 0;
        right: 0;
        height: 100dvh;
        width: var(--panel-w);
        background: var(--panel-bg);
        -webkit-backdrop-filter: blur(var(--panel-blur));
        backdrop-filter: blur(var(--panel-blur));
        transform: translateX(100%);
        transition: transform var(--anim);
        padding: max(16px, env(safe-area-inset-top)) 22px 20px 24px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        z-index: 1100;
        box-shadow: 0 10px 40px rgba(0, 0, 0, .35);
    }

    .main-nav ul {
        flex-direction: column;
        gap: .25rem;
        align-items: stretch;
        margin-top: 12px;
    }

    .main-nav li {
        display: block;
    }

    .main-nav a {
        display: block;
        padding: .95rem 0;
        font-size: 1.05rem;
        letter-spacing: .02em;
        border-bottom: 1px solid rgba(255, 255, 255, .08);
        color: var(--text-strong);
    }

    .main-nav a:last-child {
        border-bottom-color: transparent;
    }

    /* Estado abierto */
    .site-header.is-open .main-nav {
        transform: translateX(0);
    }

    /* Ocultar menú horizontal cuando está cerrado en móvil */
    .site-header:not(.is-open) .main-nav ul {
        display: none;
    }

    /* Backdrop clicable (hermano del header) */
    .nav-backdrop {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, .35);
        -webkit-backdrop-filter: blur(2px);
        backdrop-filter: blur(2px);
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--anim);
        z-index: 1095;
    }

    .site-header.is-open+.nav-backdrop {
        opacity: 1;
        pointer-events: auto;
    }
}

/* Ajustes finos */
@media (max-width: 420px) {
    .logo img {
        height: 44px;
    }
}

/* Coherencia visual al abrir */
.site-header.is-open {
    background: #000;
}