/* ============================================= */
/* GLOBAL HAMBURGER MENU | START
/* ============================================= */

.global-menu {
    position: fixed;
    inset: 0;
    z-index: 120;
    pointer-events: none;
    font-family: var(--ff-base);
}

/* Menu trigger */

.global-menu__toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 130;

    width: 3rem;
    height: 3rem;
    padding: 0.625rem;

    border: 0;
    border-radius: var(--radius-sm);
    background-color: hsla(0, 0%, 0%, 0.45);
    cursor: pointer;

    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.35rem;

    pointer-events: auto;

    opacity: 1;
    visibility: visible;

    transition:
        opacity 0.2s ease,
        visibility 0s linear 0s;
}

body.has-global-menu-open .global-menu__toggle {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;

    transition:
        opacity 0.2s ease,
        visibility 0s linear 0.2s;
}

.global-menu__hamburger-line {
    display: block;
    width: 100%;
    height: 0.1875rem;
    border-radius: var(--radius-round);
    background-color: var(--clr-white);
}

/* Backdrop */

.global-menu__backdrop {
    position: fixed;
    inset: 0;
    z-index: 121;

    background-color: hsla(0, 0%, 0%, 0.45);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;

    transition:
        opacity 0.3s ease,
        visibility 0s linear 0.3s;
}

body.has-global-menu-open .global-menu__backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;

    transition:
        opacity 0.3s ease,
        visibility 0s linear 0s;
}

/* Menu shelf */

.global-menu__panel {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 122;

    width: min(82vw, 22rem);
    height: 100vh;
    min-height: 100svh;

    background-color: hsla(0, 0%, 0%, 0.94);
    color: var(--clr-white);

    overflow-y: auto;
    pointer-events: auto;

    transform: translateX(100%);

    transition:
        transform 0.35s ease;
}

body.has-global-menu-open .global-menu__panel {
    transform: translateX(0);
}

.global-menu__panel-inner {
    min-height: 100%;
    padding: 5rem 2rem 2rem;

    display: flex;
    flex-direction: column;
    align-items: center;
}

.global-menu__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 2;

    width: 3rem;
    height: 3rem;

    border: 0;
    background: transparent;
    color: var(--clr-white-muted);
    cursor: pointer;

    display: flex;
    align-items: center;
    justify-content: center;

    font: inherit;
    font-size: 3rem;
    line-height: 1;
}

.global-menu__panel-brand {
    width: 100%;
    text-align: center;
}

.global-menu__panel-title {
    margin: 0;

    font-size: 1.125rem;
    line-height: 1.05;
    font-weight: var(--fw-extra-bold);
    text-transform: uppercase;
    color: var(--clr-white);
}

.global-menu__panel-divider {
    width: 5rem;
    height: 0.125rem;
    margin: 1.25rem auto;
    background-color: var(--clr-white-muted);
}

.global-menu__panel-logo {
    display: block;
    width: 9rem;
    height: auto;
    margin: 0 auto;
}

.global-menu__nav {
    width: 100%;
    margin-top: 3rem;

    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.global-menu__nav-link {
    color: var(--clr-white);
    text-decoration: none;
    text-transform: uppercase;
    text-align: center;

    font-size: 1rem;
    line-height: 1.1;
    font-weight: var(--fw-extra-bold);
    transition: color 0.2s ease;
}

.global-menu__nav-link:hover,
.global-menu__nav-link:focus-visible {
    color: var(--clr-title);
}

/* Desktop lockup hidden on mobile */

.global-menu__desktop-lockup {
    display: none;
}

/* Body lock */

body.has-global-menu-open {
    overflow: hidden;
}

/* ============================================= */
/* DESKTOP
/* ============================================= */

@media (min-width: 65rem) {
    .global-menu__toggle {
        top: 1rem;
        left: 1rem;
        right: auto;

        background-color: transparent;
    }

    .global-menu__panel {
        left: 0;
        right: auto;

        width: 13.5rem;

        transform: translateX(-100%);
    }

    body.has-global-menu-open .global-menu__panel {
        transform: translateX(0);
    }

    .global-menu__close {
        top: 1rem;
        left: 1rem;
        right: auto;
    }

    .global-menu__panel-inner {
        padding: 5.5rem 1.5rem 2rem;
    }

    .global-menu__panel-title {
        display: none;
    }

    .global-menu__panel-divider {
        display: none;
    }

    .global-menu__panel-logo {
        display: none;
    }

    .global-menu__nav {
        margin-top: 0;
        gap: 1.15rem;
    }

    .global-menu__nav-link {
        font-size: 1rem;
    }

    .global-menu__desktop-lockup {
        position: fixed;
        right: 1.5rem;
        top: 1.25rem;
        z-index: 121;

        display: flex;
        align-items: center;
        gap: 1rem;

        color: var(--clr-white);
        text-transform: uppercase;
        pointer-events: auto;
    }

    .global-menu__desktop-title {
        font-size: 1rem;
        line-height: 1;
        font-weight: var(--fw-extra-bold);
        white-space: nowrap;
    }

    .global-menu__desktop-divider {
        width: 0.125rem;
        height: 1.75rem;
        background-color: var(--clr-white-muted);
    }

    .global-menu__desktop-logo {
        display: block;
        width: 8.75rem;
        height: auto;
    }

    body.has-global-menu-open {
        overflow: auto;
    }
}

/* ============================================= */
/* GLOBAL HAMBURGER MENU | END
/* ============================================= */


/* ============================================= */
/* FIXED TIMELINE SECTION NAVIGATION | START */
/* ============================================= */

.timeline-section-arrows {
    position: fixed;
    inset: 0;
    z-index: 90;
    pointer-events: none;
}

/* Shared button styles */

.timeline-section-arrows__btn {
    position: fixed;

    width: var(--timeline-arrow-size);
    height: var(--timeline-arrow-size);

    border-radius: var(--radius-round);
    background-color: var(--clr-button-bg);

    display: flex;
    align-items: center;
    justify-content: center;

    opacity: 1;
    visibility: visible;
    pointer-events: auto;

    transition:
        opacity 0.25s ease,
        visibility 0s linear 0s,
        background-color 0.25s ease,
        transform 0.25s ease;
}

.timeline-section-arrows__btn:hover,
.timeline-section-arrows__btn:focus-visible {
    background-color: var(--clr-scroll-btn-hover);
}

.timeline-section-arrows__btn img {
    width: var(--next-icon-size);
    height: var(--next-icon-size);
}

.timeline-section-arrows__btn.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;

    transition:
        opacity 0.25s ease,
        visibility 0s linear 0.25s;
}

/* Mobile: use only the next button as a back-to-top button */

.timeline-section-arrows__btn--prev {
    display: none;
}

.timeline-section-arrows__btn--next {
    right: 1rem;
    bottom: 1rem;
}

.timeline-section-arrows__btn--next img {
    transform: scaleY(-1);
}

/* Desktop: show previous/next navigation on the right */

@media (min-width: 65rem) {
    .timeline-section-arrows__btn--prev {
        display: flex;
        right: 2rem;
        top: 50%;
        transform: translateY(-4.75rem);
    }

    .timeline-section-arrows__btn--prev img {
        transform: scaleY(-1);
    }

    .timeline-section-arrows__btn--next {
        right: 2rem;
        top: 50%;
        bottom: auto;
        transform: translateY(2rem);
    }

    .timeline-section-arrows__btn--next img {
        transform: none;
    }
}

/* ============================================= */
/* FIXED TIMELINE SECTION NAVIGATION | END */
/* ============================================= */