/* ==========================================================
   Header / Navbar
   ========================================================== */

/* Medidas del header y del logo (desktop) */
:root {
    --header-height: 110px;
    --header-height-scrolled: 76px;
    --logo-height: 64px;
    --logo-height-scrolled: 44px;
}

/* Medidas del header y del logo (mobile / tablet) */
@media (max-width: 991.98px) {
    :root {
        --header-height: 84px;
        --header-height-scrolled: 64px;
        --logo-height: 48px;
        --logo-height-scrolled: 36px;
    }
}

/* Navegación suave dentro de la misma página */
html {
    scroll-behavior: smooth;
}

/* El header es fijo: se deja su espacio arriba del contenido */
body {
    padding-top: var(--header-height);
}

/* Al ir a una sección, que el título no quede tapado por el header */
section[id] {
    scroll-margin-top: var(--header-height-scrolled);
}

body.no-scroll {
    overflow: hidden;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
    height: var(--header-height);
    background-color: var(--color-white);
    transition: height 0.3s ease, box-shadow 0.3s ease;
}

.header.is-scrolled {
    height: var(--header-height-scrolled);
    box-shadow: 0 4px 20px rgba(29, 39, 51, 0.08);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

/* Logo */
.header__logo {
    display: flex;
    align-items: center;
}

.header__logo img {
    display: block;
    height: var(--logo-height);
    width: auto;
    transition: height 0.3s ease;
}

.header.is-scrolled .header__logo img {
    height: var(--logo-height-scrolled);
}

/* Links */
.nav-menu__list {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-menu__link {
    position: relative;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5rem;
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.nav-menu__link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary-hover);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.nav-menu__link:hover,
.nav-menu__link:focus-visible {
    color: var(--color-primary-hover);
}

.nav-menu__link:hover::after,
.nav-menu__link:focus-visible::after {
    transform: scaleX(1);
}

.nav-menu__link:active {
    color: var(--color-primary-pressed);
}

/* Botón hamburguesa (oculto en desktop) */
.nav-toggle {
    display: none;
}

/* Fondo oscuro detrás del menú mobile */
.nav-overlay {
    display: none;
}

/* ==========================================================
   Mobile / tablet
   ========================================================== */
@media (max-width: 991.98px) {

    .nav-toggle {
        position: relative;
        z-index: 2;
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 6px;
        width: 44px;
        height: 44px;
        padding: 0 9px;
        background: none;
        border: 0;
        cursor: pointer;
    }

    .nav-toggle__bar {
        display: block;
        width: 26px;
        height: 2px;
        border-radius: 2px;
        background-color: var(--color-dark-text);
        transition: transform 0.35s ease, opacity 0.25s ease;
    }

    /* 3 líneas → X */
    .header.menu-open .nav-toggle__bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .header.menu-open .nav-toggle__bar:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }

    .header.menu-open .nav-toggle__bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* Panel lateral: entra de derecha a izquierda */
    .nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        z-index: 1;
        width: min(80vw, 340px);
        height: 100dvh;
        padding: calc(var(--header-height) + 1rem) 2rem 2rem;
        background-color: var(--color-white);
        box-shadow: -8px 0 30px rgba(29, 39, 51, 0.12);
        transform: translateX(100%);
        visibility: hidden;
        transition: transform 0.45s cubic-bezier(0.77, 0, 0.175, 1), visibility 0s linear 0.45s;
    }

    .header.menu-open .nav-menu {
        transform: translateX(0);
        visibility: visible;
        transition: transform 0.45s cubic-bezier(0.77, 0, 0.175, 1), visibility 0s;
    }

    .nav-menu__list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .nav-menu__link {
        display: block;
        padding: 1rem 0;
        font-size: 1.25rem;
        line-height: 1.625rem;
        border-bottom: 1px solid var(--color-gray-300);
    }

    .nav-menu__link::after {
        display: none;
    }

    .nav-overlay {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 1029;
        background-color: rgba(29, 39, 51, 0.4);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.45s ease, visibility 0s linear 0.45s;
    }

    .nav-overlay.is-visible {
        opacity: 1;
        visibility: visible;
        transition: opacity 0.45s ease, visibility 0s;
    }
}

/* Sin animaciones para quien las tenga desactivadas en su sistema */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .header,
    .header *,
    .nav-overlay {
        transition-duration: 0.01ms !important;
    }
}