/* ================================================================
   HEADER.CSS — cabecera + navegación
   Se referencia en _Layout.cshtml (aparece en todas las páginas)
   Depende de variables definidas en tokens.css
   ================================================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line-soft);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 32px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px
}

    .nav-brand img {
        height: 40px;
        width: auto
    }

.nav-brand-text {
    font-family: var(--display);
    font-weight: 800;
    font-size: 15px;
    letter-spacing: 0.5px;
    color: var(--navy);
    line-height: 1.15
}

    .nav-brand-text span {
        display: block;
        font-family: var(--mono);
        font-weight: 400;
        font-size: 9px;
        letter-spacing: 2px;
        color: var(--blue)
    }

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px
}

    .nav-links a {
        font-size: 13.5px;
        font-weight: 500;
        color: var(--ink);
        position: relative;
        padding: 4px 0;
    }

        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--spark);
            transition: width .25s ease;
        }

        .nav-links a:hover::after {
            width: 100%
        }

.nav-cta {
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    background: var(--navy);
    padding: 11px 22px;
    border-radius: 8px;
    transition: background .2s ease;
}

    .nav-cta:hover {
        background: var(--blue)
    }

.nav-links a.nav-cta {
    color: #fff;
    padding: 11px 22px
}

    .nav-links a.nav-cta::after {
        display: none
    }

.nav-toggle {
    display: none;
    background: none;
    border: none;
    padding: 8px
}

    .nav-toggle span {
        display: block;
        width: 22px;
        height: 2px;
        background: var(--navy);
        margin: 4px 0
    }

@media (max-width:900px) {
    .nav-links {
        position: fixed;
        top: 69px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px 32px;
        gap: 20px;
        border-bottom: 1px solid var(--line-soft);
        transform: translateY(-8px);
        opacity: 0;
        visibility: hidden;
        transition: opacity .2s ease,transform .2s ease,visibility .2s;
    }

        .nav-links.is-open {
            transform: none;
            opacity: 1;
            visibility: visible
        }

    .nav-toggle {
        display: block
    }
}