/* =========================================================
   HEADER — Bogota Graffiti Tour
   ========================================================= */

.bgt-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: background 0.35s ease, box-shadow 0.35s ease, padding 0.35s ease;
    padding: 1.25rem 0;
}

/* Versión transparente (home) */
.bgt-header--transparent {
    background: transparent;
}

/* Versión sólida (páginas internas) */
.bgt-header--solid {
    background: var(--bgt-negro);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
    padding: 0.85rem 0;
}

/* Al hacer scroll en el home */
.bgt-header--transparent.bgt-header--scrolled {
    background: var(--bgt-negro);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
    padding: 0.85rem 0;
}

/* Layout interno */
.bgt-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}


/* =========================================================
   LOGO
   ========================================================= */

.bgt-header__logo a,
.bgt-header__logo img {
    display: block;
    max-height: 80px;
    width: auto;
    transition: opacity 0.2s ease;
}

.bgt-header__logo a:hover {
    opacity: 0.85;
}

.bgt-header__site-name {
    font-family: var(--bgt-font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--bgt-blanco-puro);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    text-decoration: none;
}

/* =========================================================
   NAVEGACIÓN PRINCIPAL
   ========================================================= */

.bgt-header__nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.bgt-nav__list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.bgt-nav__list li a {
    display: block;
    padding: 0.5rem 1rem;
    font-family: var(--bgt-font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--bgt-blanco-puro);
    border-bottom: 2px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.bgt-nav__list li a:hover,
.bgt-nav__list li.current-menu-item > a {
    color: var(--bgt-azul-cobalt);
    border-bottom-color: var(--bgt-azul-cobalt);
}

/* Submenús */
.bgt-nav__list .sub-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    min-width: 200px;
    background: var(--bgt-grafito);
    border-top: 3px solid var(--bgt-fucsia);
    border-radius: 0 0 var(--bgt-radius-lg) var(--bgt-radius-lg);
    list-style: none;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.25s ease;
    box-shadow: var(--bgt-shadow);
}

.bgt-nav__list li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.bgt-nav__list li {
    position: relative;
}

.bgt-nav__list .sub-menu li a {
    padding: 0.6rem 1.25rem;
    font-size: 0.85rem;
    border-bottom: none;
    border-left: 3px solid transparent;
}

.bgt-nav__list .sub-menu li a:hover {
    border-left-color: var(--bgt-fucsia);
    background: rgba(255,255,255,0.05);
    color: var(--bgt-fucsia);
}


/* =========================================================
   BOTÓN BOOK TOUR (CTA header)
   ========================================================= */

.bgt-header__cta {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.bgt-header__book-btn {
    padding: 0.6rem 1.4rem;
    font-size: 0.85rem;
    border-radius: var(--bgt-radius);
    white-space: nowrap;
}

/* =========================================================
   TOGGLE MÓVIL (hamburguesa)
   ========================================================= */

.bgt-header__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
    flex-shrink: 0;
}

.bgt-header__toggle-bar {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--bgt-blanco-puro);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease, width 0.3s ease;
    transform-origin: center;
}

/* Animación X al abrir */
.bgt-header__toggle.is-active .bgt-header__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.bgt-header__toggle.is-active .bgt-header__toggle-bar:nth-child(2) {
    opacity: 0;
    width: 0;
}
.bgt-header__toggle.is-active .bgt-header__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Skip link accesibilidad */
.bgt-skip-link {
    position: absolute;
    top: -100px;
    left: 1rem;
    background: var(--bgt-fucsia);
    color: var(--bgt-blanco-puro);
    padding: 0.5rem 1rem;
    border-radius: var(--bgt-radius);
    font-weight: 600;
    transition: top 0.2s;
    z-index: 9999;
}
.bgt-skip-link:focus {
    top: 1rem;
}


/* =========================================================
   RESPONSIVE — HEADER MÓVIL
   ========================================================= */

@media ( max-width: 1024px ) {
    .bgt-header__toggle {
        display: flex;
    }

    .bgt-header__nav {
        position: fixed;
        top: 0;
        right: 0;
        width: min(320px, 85vw);
        height: 100dvh;
        background: var(--bgt-negro);
        border-left: 3px solid var(--bgt-fucsia);
        flex-direction: column;
        justify-content: flex-start;
        padding: 6rem 2rem 2rem;
        transform: translateX(100%);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
        z-index: 999;
    }

    .bgt-header__nav.is-open {
        transform: translateX(0);
        box-shadow: -8px 0 40px rgba(0,0,0,0.5);
    }

    .bgt-nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        width: 100%;
    }

    .bgt-nav__list li {
        width: 100%;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .bgt-nav__list li a {
        padding: 1rem 0;
        font-size: 1.1rem;
        border-bottom: none;
    }

    .bgt-nav__list .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: rgba(255,255,255,0.04);
        border-top: none;
        border-left: 3px solid var(--bgt-fucsia);
        border-radius: 0;
        box-shadow: none;
        margin-left: 1rem;
    }

    .bgt-nav__list .sub-menu li a {
        font-size: 0.95rem;
        padding: 0.6rem 1rem;
    }
}

@media ( max-width: 600px ) {
    .bgt-header__cta {
        display: none;
    }
}

/* Language switcher dentro del nav — solo visible en móvil */
.bgt-nav__lang-mobile {
    display: none;
}

@media ( max-width: 1024px ) {
    .bgt-nav__lang-mobile {
        display: block;
        margin-top: 2rem;
        padding-top: 1.5rem;
        border-top: 1px solid rgba(255,255,255,0.08);
        width: 100%;
    }

    /* Overrides para que el switcher se vea bien en el panel oscuro */
    .bgt-nav__lang-mobile .bgt-lang-switcher__trigger {
        color: var(--bgt-blanco-puro);
        font-size: 1rem;
        padding: 0.5rem 0;
    }

    .bgt-nav__lang-mobile .bgt-lang-switcher__list {
        position: static;
        transform: none;
        box-shadow: none;
        background: rgba(255,255,255,0.04);
        border: none;
        border-left: 3px solid var(--bgt-fucsia);
        border-radius: 0;
        margin-top: 0.5rem;
        padding: 0.25rem 0;
    }

    .bgt-nav__lang-mobile .bgt-lang-switcher__option a {
        color: var(--bgt-blanco-puro);
        padding: 0.6rem 1rem;
        font-size: 0.95rem;
    }

    .bgt-nav__lang-mobile .bgt-lang-switcher__option.is-active a {
        color: var(--bgt-fucsia);
    }

    .bgt-header__logo img {
        max-height: 40px;
}

}