/* =========================================================
   LeCorch Photo · Header dinámico + Mega-menu Portfolio
   ========================================================= */

@layer plugins {

    .fp-header {
        position: fixed;
        top: 0;
        inset-inline: 0;
        z-index: 100;
        height: var(--header-height);
        color: var(--header-tinta-initial);
        background: transparent;
        backdrop-filter: blur(0);
        -webkit-backdrop-filter: blur(0);
        transition:
            background-color var(--d-med) var(--ease),
            backdrop-filter var(--d-med) var(--ease),
            color var(--d-med) var(--ease);
    }

    /* Gradiente sutil sobre el hero para legibilidad del header transparente */
    .fp-header::before {
        content: '';
        position: absolute;
        inset: 0 0 auto 0;
        height: 140px;
        background: linear-gradient(to bottom, rgba(15, 47, 68, 0.35), transparent);
        opacity: 1;
        transition: opacity var(--d-med) var(--ease);
        pointer-events: none;
    }

    .fp-header.is-scrolled {
        color: var(--color-tinta);
        background: color-mix(in srgb, var(--header-scroll-bg) calc(var(--header-scroll-opacity) * 100%), transparent);
        backdrop-filter: blur(var(--header-scroll-blur)) saturate(1.2);
        -webkit-backdrop-filter: blur(var(--header-scroll-blur)) saturate(1.2);
        border-bottom: 1px solid color-mix(in srgb, var(--color-linea) 60%, transparent);
    }
    .fp-header.is-scrolled::before { opacity: 0; }

    .fp-header__inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        height: 100%;
        max-width: 100%;
        margin: 0 auto;
        padding: 0 clamp(20px, 2vw, 40px);
    }

    .fp-header__brand {
        display: inline-flex;
        align-items: center;
        font-family: var(--font);
        font-size: 20px;
        font-weight: var(--peso-medium);
        letter-spacing: 0.18em;
        text-transform: uppercase;
        flex-shrink: 0;
    }
    .fp-header__logo {
        max-height: 40px;
        width: auto;
    }
    .fp-header__title { white-space: nowrap; }

    /* Nav desktop */
    .fp-header__nav {
        display: flex;
        align-items: center;
    }
    .fp-nav {
        display: flex;
        align-items: center;
        gap: 36px;
        margin: 0;
        padding: 0;
        list-style: none;
    }
    .fp-nav__item { position: relative; }
    .fp-nav__link {
        position: relative;
        display: inline-block;
        font-family: var(--font);
        font-weight: var(--peso-medium);
        font-size: 12px;
        text-transform: uppercase;
        letter-spacing: 0.18em;
        line-height: 1;
        padding: 6px 0;
        transition: color var(--d-fast) var(--ease);
    }
    .fp-nav__link::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: 0;
        width: 100%;
        height: 1px;
        background: currentColor;
        transform: scaleX(0);
        transform-origin: left;
        transition: transform var(--d-med) var(--ease);
    }
    @media (hover: hover) and (pointer: fine) {
        .fp-nav__link:hover::after,
        .fp-nav__link.is-current::after {
            transform: scaleX(1);
        }
    }

    /* Mega-menu Portfolio */
    .fp-megamenu {
        position: absolute;
        top: calc(100% + 14px);
        left: 50%;
        transform: translateX(-50%) translateY(-8px);
        min-width: 540px;
        padding: 28px 36px;
        background: color-mix(in srgb, var(--color-fondo) 97%, transparent);
        backdrop-filter: blur(16px) saturate(1.2);
        -webkit-backdrop-filter: blur(16px) saturate(1.2);
        border: 1px solid color-mix(in srgb, var(--color-linea) 50%, transparent);
        box-shadow: 0 16px 48px rgba(15, 47, 68, 0.08);
        display: grid;
        grid-template-columns: 1fr 1fr;
        column-gap: 36px;
        row-gap: 4px;
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--d-fast) var(--ease), transform var(--d-fast) var(--ease);
    }
    .fp-nav__item--has-children:hover .fp-megamenu,
    .fp-nav__item--has-children:focus-within .fp-megamenu {
        opacity: 1;
        pointer-events: auto;
        transform: translateX(-50%) translateY(0);
    }
    .fp-megamenu a {
        display: block;
        padding: 10px 0;
        border-bottom: 1px solid color-mix(in srgb, var(--color-linea) 35%, transparent);
        color: var(--color-tinta);
        text-transform: none;
        letter-spacing: 0;
        font-size: 15px;
        font-weight: var(--peso-medium);
        line-height: 1.2;
        transition: padding-left var(--d-fast) var(--ease), color var(--d-fast) var(--ease);
    }
    .fp-megamenu a:nth-last-child(-n+2) {
        border-bottom: 0;
    }
    .fp-megamenu a::after { display: none; }
    .fp-megamenu a small {
        display: block;
        margin-top: 4px;
        font-size: 11px;
        text-transform: uppercase;
        letter-spacing: 0.18em;
        color: var(--color-dorado);
        font-weight: var(--peso-medium);
    }
    .fp-megamenu a:hover {
        padding-left: 8px;
        color: var(--color-oceano);
    }

    /* Switcher de idioma */
    .fp-header__lang { flex-shrink: 0; }
    .ad-lang {
        display: flex;
        align-items: center;
        gap: 6px;
        font-family: var(--font);
        font-weight: var(--peso-medium);
        font-size: 12px;
        letter-spacing: 0.18em;
        line-height: 1;
    }
    .ad-lang__btn {
        padding: 4px 2px;
        opacity: 0.6;
        transition: opacity var(--d-fast) var(--ease);
    }
    .ad-lang__btn.is-active { opacity: 1; }
    @media (hover: hover) and (pointer: fine) {
        .ad-lang__btn:hover { opacity: 1; }
    }
    .ad-lang__sep { opacity: 0.4; }

    /* Menu toggle (mobile) */
    .fp-header__menu-toggle {
        display: none;
        width: 32px;
        height: 32px;
        flex-direction: column;
        justify-content: center;
        gap: 6px;
        background: transparent;
        border: 0;
        padding: 0;
        cursor: pointer;
    }
    .fp-header__menu-line {
        display: block;
        width: 100%;
        height: 1px;
        background: currentColor;
        transition: transform var(--d-fast) var(--ease);
    }

    @media (max-width: 900px) {
        .fp-header__nav,
        .fp-header__lang { display: none; }
        .fp-header__menu-toggle { display: flex; }
    }

}