/* Skipper */
.skipper {
    position: absolute;
    left: -100%;
    z-index: 1;
}

.skipper:focus-visible {
    top: 0.5rem;
    left: 0.5rem;
}

.skip-btn {
    display: inline-flex;
    /* padding: 0.5rem 1.5rem; */
    padding: 0.4rem 1rem;
    align-items: center;
    justify-content: center;
    color: white;
    border: 1px solid transparent;
    border-radius: var(--rounded);
    background: black;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 0 1.5rem 0.75rem;
    z-index: 1;
    
    /* height: 4rem; */
    bottom: calc(100svh - 6rem);
    transition: background 0.6s 0.3s ease, bottom 0.6s 0.3s ease;
    z-index: 10;
    background: linear-gradient(rgba(10, 49, 65, 1) 0%,
        rgba(10, 49, 65, 1) 20%,
        rgba(10, 49, 65, 0.95) 32%,
        rgba(10, 49, 65, 0.85) 44%,
        rgba(10, 49, 65, 0.7) 56%,
        rgba(10, 49, 65, 0.5) 68%,
        rgba(10, 49, 65, 0.3) 80%,
        rgba(10, 49, 65, 0.12) 90%,
        rgba(10, 49, 65, 0) 100%);
}

.header.bg-blue {
    background: linear-gradient(
        rgba(10, 49, 65, 1)    0%,
        rgba(10, 49, 65, 1)    20%,
        rgba(10, 49, 65, 0.95) 32%,
        rgba(10, 49, 65, 0.85) 44%,
        rgba(10, 49, 65, 0.7)  56%,
        rgba(10, 49, 65, 0.5)  68%,
        rgba(10, 49, 65, 0.3)  80%,
        rgba(10, 49, 65, 0.12) 90%,
        rgba(10, 49, 65, 0)    100%
    );
}

.header.bg-black {
    background: linear-gradient(
        rgba(0, 0, 0, 0.7)  0%,
        rgba(0, 0, 0, 0.62) 8%,
        rgba(0, 0, 0, 0.52) 17%,
        rgba(0, 0, 0, 0.4)  26%,
        rgba(0, 0, 0, 0.28) 36%,
        rgba(0, 0, 0, 0.17) 47%,
        rgba(0, 0, 0, 0.09) 60%,
        rgba(0, 0, 0, 0.03) 75%,
        rgba(0, 0, 0, 0)    100%
    );
}

.header.invert {
    background: transparent;
    transition: background 0.6s 0.3s ease, bottom 0.6s 0.3s ease, translate 0.4s ease;
}

.header.invert.is-hidden {
    translate: 0 -100%;
}

.header.open {
    bottom: 0;
    background: var(--color-blue);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding-bottom: 1.5rem;
    transition: background 0.6s ease, bottom 0.6s ease;
}

.header-logo {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    width: 10rem;
}

.header-logo-text {
    opacity: 0;
    width: 0;
    height: 0;
    overflow: hidden;
}

.header-logo-image {
    width: 100%;
    height: auto;
}

@media screen and (min-width: 768px) {
    .header {
        padding: 0 2rem 2rem;
    }

    .header-logo {
        position: absolute;
        top: 2rem;
        left: 50%;
        translate: -50% 0;
        width: 8rem;
    }

    .header-logo {
        width: 12rem;
        transition: 0.6s;
    }

    .header.invert  .header-logo {
        opacity: 0;
    }
}

/* Header: Progress */
.header-progress {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    transition: 300ms ease;
    overflow: hidden;
}

.header-progress:has([data-page-progress]) {
    grid-template-columns: 1fr;
}

@keyframes progress-tick-reveal {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes progress-item-fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.header-progress-item {
    overflow: hidden;
    position: relative;
    animation: progress-item-fade-in 0.7s 0.1s ease both;
    height: 0.75rem;
    background-color: var(--color-green);
}

.header-progress-tick {
    position: absolute;
    top: 0;
    width: 1px;
    height: 100%;
    transform: translateY(-100%);
    background-color: var(--color-green);
    left: calc(var(--tick-index) * 8px);
    animation: progress-tick-reveal 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: calc(600ms + var(--tick-index) * 3ms);
}

.header.invert .header-progress-tick {
    background-color: var(--color-blue);
}

.header.invert .header-progress-item {
    background-color: var(--color-blue);
    border-right-color: var(--color-blue);
}

@media screen and (min-width: 768px) {
    .header-progress {
        height: 1rem;
        grid-template-columns: 20% 55% 1fr var(--contact-width, auto);
    }

    .header-progress:has([data-page-progress]) {
        grid-template-columns: 1fr;
    }

    .header-progress-item {
        height: 1rem;
        background-color: var(--color-green);
    }
}

/* Header: Menu */
.header-menu {
    margin: 0;
    padding: 0;
    position: fixed;
    top: 50%;
    left: 1.5rem;
    right: 1.5rem;
    z-index: 11;
    translate: 0 -50%;
    visibility: hidden;
    transition: visibility 0s linear 0.3s;
}

.header.invert~.header-menu .header-menu-item {
    color: var(--color-blue);
}

.header.open ~ .header-menu {
    visibility: visible;
    transition: visibility 0s linear 0s;
}

.header-menu-item {
    list-style-type: none;
    text-transform: uppercase;
    font-size: var(--text-h2);
    color: var(--color-green);
    padding: 0.5rem 0;
    opacity: 0;
    transition: opacity 0.3s ease, color 100ms;
}

.header.open ~ .header-menu .header-menu-item {
    transition: opacity 0.3s ease 0.6s, color 0s;
    opacity: 1;
    color: var(--color-green);
}

@media (hover: hover) {
    .header-menu-item:hover {
        color: var(--color-green);
        font-weight: 600;
    }
}


.header-menu-item button {
    display: block;
    width: 100%;
    padding: 0;
    color: inherit;
    font: inherit;
    text-align: inherit;
    text-transform: inherit;
    letter-spacing: inherit;
}

@media screen and (min-width: 768px) {
    .header-menu,
    .header.open ~ .header-menu {
        display: grid;
        position: fixed;
        top: 1rem;
        left: 0;
        right: 0;
        padding: 0 2rem;
        grid-template-columns: 20% 55% 1fr auto;
        z-index: 11;
        visibility: visible;
        translate: 0 0;
        transition: none;
    }

    .header.invert ~ .header-menu {
        transition: translate 0.4s ease;
    }

    .header.invert.is-hidden ~ .header-menu {
        translate: 0 -200%;
    }

    .header-menu-item,
    .header.open ~ .header-menu .header-menu-item {
        position: relative;
        padding: 1rem 0.5rem 0;
        transition: color 500ms ease;
        font-size: var(--text-btn1);
        letter-spacing: -1%;
        color: white;
        opacity: 1;
    }

    .header-menu-item::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 1px;
        height: 100%;
        background-color: var(--color-green);
        transform: scaleY(0);
        transform-origin: top;
        transition: transform 500ms ease;
    }

    .header.invert ~ .header-menu .header-menu-item::before {
        background-color: var(--color-blue);
    }

    .header-menu-item:nth-child(4) {
        text-align: right;
    }

    .header-menu-item.active {
        color: var(--color-green);
    }

    .header-menu-item.active::before {
        transform: scaleY(1);
    }
}

/* Header: Button */
.header-button {
    position: fixed !important;
    top: 1.5rem;
    right: 1.5rem;
    display: block;
    font-size: var(--text-btn1) !important;
    animation: fade-in-top 0.6s ease 0.4s both;
}

.header.invert .header-button {
    color: var(--color-blue);
}

.header.invert .header-button::before,
.header.invert .header-button::after {
    border-color: var(--color-blue);
}

.header.invert.open .header-button {
    color: var(--color-green);
}

.header.invert.open .header-button::before,
.header.invert.open .header-button::after {
    border-color: var(--color-green);
}

@media screen and (min-width: 768px) {
    .header-button {
        display: none;
    }
}


/* Header: Copyright */
.header-copyright {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    right: 1.5rem;
    font-size: var(--text-btn1);
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s ease, visibility 0s linear 0.3s;
}

.header.open .header-copyright {
    visibility: visible;
    opacity: 1;
    transition: opacity 0.3s ease 0.6s, visibility 0s linear 0s;
}

@media screen and (min-width: 768px) {
    .header-button {
        display: none;
    }

    .header-copyright,
    .header.open .header-copyright {
        display: none;
    }
}