/*
 * Estilos del header/navbar
 * - Sticky header con fondo transparente → blanco al scrollear
 * - Menú hamburguesa en móvil
 * - Logo responsive en todas las pantallas
 * - Animaciones suaves
 */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-navbar);
    background-color: transparent;
    transition:
        background-color var(--transition-normal),
        box-shadow var(--transition-normal),
        padding var(--transition-normal);
    padding: var(--spacing-lg) 0;
}

.navbar--scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md) 0;
}

.navbar__inner {
    max-width: 95%;
    margin: 0 auto;
    padding: 0 var(--margin-desktop);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo imagen responsive */
.navbar__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    transition: opacity var(--transition-fast);
}

.navbar__logo:hover {
    opacity: 0.85;
}

.navbar__logo-img {
    display: block;
    height: 48px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
}

/* Enlaces de navegación (escritorio) */
.navbar__links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.navbar__link {
    font-weight: var(--font-weight-bold);
    font-size: var(--text-xs);
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
    color: var(--text-secondary);
    opacity: 0.8;
    position: relative;
    transition: opacity var(--transition-fast);
}

.navbar__link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--color-primary-light);
    transition: width var(--transition-normal);
}

.navbar__link:hover {
    opacity: 1;
}

.navbar__link:hover::after {
    width: 100%;
}

/* Selector de idioma ──────────────────────────────────────── */
.navbar__lang {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.navbar__lang-link {
    font-weight: var(--font-weight-bold);
    font-size: var(--text-xs);
    letter-spacing: var(--letter-spacing-wide);
    color: var(--text-secondary);
    opacity: 0.6;
    padding: var(--spacing-xs) var(--spacing-sm);
    transition: opacity var(--transition-fast), color var(--transition-fast);
    position: relative;
}

.navbar__lang-link:hover {
    opacity: 1;
}

.navbar__lang-link.is-active {
    opacity: 1;
    color: var(--color-primary-light);
}

.navbar__lang-link + .navbar__lang-link::before {
    content: '|';
    position: absolute;
    left: -4px;
    opacity: 0.3;
    pointer-events: none;
}

/* Ocultar idioma escritorio en móvil, y viceversa */
.navbar__desktop-lang {
    display: flex;
}

.navbar__lang-mobile {
    display: none;
}

/* Idioma dentro del menú móvil */
.navbar__lang-mobile .navbar__lang-label {
    font-weight: var(--font-weight-bold);
    font-size: var(--text-xs);
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
    display: block;
}

.navbar__lang-mobile .navbar__lang-options {
    display: flex;
    gap: var(--spacing-sm);
}

/* Elementos solo visibles en móvil dentro del menú lateral */
.navbar__mobile-logo,
.navbar__mobile-cta,
.navbar__lang-mobile {
    display: none;
}

/* CTA de escritorio */
.navbar__desktop-cta {
    display: inline-flex;
}

/* Acciones (CTA + hamburguesa + idioma) */
.navbar__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

/* Menú hamburguesa */
.navbar__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    cursor: pointer;
}

.navbar__hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-secondary);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.navbar__hamburger--open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.navbar__hamburger--open span:nth-child(2) {
    opacity: 0;
}

.navbar__hamburger--open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Menú responsive (móvil) */
@media (max-width: 768px) {
    .navbar__links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--color-white);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: var(--spacing-2xl) var(--spacing-2xl);
        padding-top: var(--spacing-4xl);
        gap: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transition: right var(--transition-normal);
        z-index: var(--z-modal);
    }

    .navbar__links--open {
        right: 0;
    }

    .navbar__hamburger {
        display: flex;
    }

    .navbar__link {
        font-size: var(--text-lg);
    }

    /* Logo dentro del menú móvil */
    .navbar__mobile-logo {
        display: block;
        margin-bottom: var(--spacing-xl);
        padding-bottom: var(--spacing-lg);
        border-bottom: 1px solid var(--color-gray-400);
        width: 100%;
    }

    .navbar__mobile-logo-img {
        display: block;
        height: 40px;
        width: auto;
        max-width: 160px;
        object-fit: contain;
    }

    /* CTA dentro del menú móvil */
    .navbar__mobile-cta {
        display: block;
        margin-top: var(--spacing-lg);
        width: 100%;
    }

    .navbar__mobile-cta .btn {
        width: 100%;
        text-align: center;
    }

    /* Ocultar CTA e idioma de escritorio en móvil */
    .navbar__desktop-cta,
    .navbar__desktop-lang {
        display: none;
    }

    /* Mostrar selector de idioma en el menú móvil */
    .navbar__lang-mobile {
        display: block;
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-lg);
        border-top: 1px solid var(--color-gray-400);
        width: 100%;
    }
}

/* Ajuste del logo según tamaño de pantalla */
@media (max-width: 480px) {
    .navbar {
        padding: var(--spacing-md) 0;
    }

    .navbar__logo-img {
        height: 32px;
        max-width: 120px;
    }

    .navbar__inner {
        padding: 0 var(--margin-mobile);
    }
}

@media (min-width: 481px) and (max-width: 768px) {
    .navbar {
        padding: var(--spacing-lg) 0;
    }

    .navbar__logo-img {
        height: 36px;
        max-width: 140px;
    }

    .navbar__inner {
        padding: 0 var(--margin-mobile);
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .navbar__logo-img {
        height: 44px;
        max-width: 160px;
    }
}

@media (min-width: 1025px) {
    .navbar__logo-img {
        height: 52px;
        max-width: 200px;
    }
}

/* Pantallas grandes (> 1440px): logo más grande y centrado */
@media (min-width: 1441px) {
    .navbar__logo-img {
        height: 58px;
        max-width: 220px;
    }
}