/* homepage redesign: grey page, thin black grid lines, Helvetica Neue
   loaded after main.css on index.html only, everything scoped to body.home */

.home {
    --ink: #121212;
    --page: #f0f0f0;
    --muted: #6e6e6e;
    --line-colour: #DAD9D9;
    --line: 1px solid var(--line-colour);
    /* the nav's left column (902px of 1512 in the mockup) */
    --split: 60%;
    --nav-height: 41px;
    --ui-text: 1.15rem;

    background-color: var(--page);
    color: var(--ink);
    font-family: "HelveticaNeue", "Helvetica Neue", Helvetica, Arial, sans-serif;
    letter-spacing: -0.05em;
}

/* everything on the homepage is lowercase except the display titles and the event names */
.home .nav,
.home .hero-scroll,
.home .section-title,
.home .project-name,
.home .site-footer {
    text-transform: lowercase;
}

/* ---------- nav: a grey bar split into cells by the grid lines ---------- */
.home .site-header {
    background-color: var(--page);
    border-bottom: var(--line);
}

.home .nav {
    grid-template-columns: var(--split) 1fr;
    align-items: stretch;
    height: calc(var(--nav-height) - 1px);
}

.home .nav-brand,
.home .nav-links a {
    display: flex;
    align-items: flex-end;
    margin: 0;
    padding: 0 10px 8px;
    background-color: var(--page);
    color: var(--ink);
    font-weight: 400;
    line-height: 1;
    text-decoration: none;
    transition: background-color 0.25s ease-in-out;
}

.home .nav-brand {
    font-size: 1.4rem;
}

.home .nav-links {
    grid-template-columns: repeat(3, 1fr);
}

.home .nav-links li {
    display: flex;
    border-left: var(--line);
}

.home .nav-links a {
    flex: 1;
    font-size: var(--ui-text);
}

/* hover: same as the project boxes, the cell lights up from grey to white
   (it stays full size so the white fills the cell edge to edge) */
.home .nav-brand:hover,
.home .nav-links a:hover {
    transform: none;
    background-color: #ffffff;
    color: var(--ink);
}

/* while the text inside shrinks ever so slightly, towards its bottom-left corner */
.home .nav-text {
    display: inline-block;
    transform-origin: left bottom;
    transition: transform 0.4s var(--spring);
}

.home .nav-brand:hover .nav-text,
.home .nav-links a:hover .nav-text {
    transform: scale(0.95);
}

/* ---------- display titles (hero + footer) ---------- */
.home .big-title {
    margin: 0;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: -0.01em;
}

.home .title-line {
    display: block;
    white-space: nowrap;
}

.home .title-heavy {
    font-family: "HelveticaNeue-HeavyCond", "Helvetica Neue", sans-serif;
    font-weight: 800;
}

.home .title-thin {
    font-weight: 100;
}

.home .title-italic {
    font-style: italic;
}

/* ---------- hero ---------- */
.home .hero {
    box-sizing: border-box;
    min-height: calc(100vh - var(--nav-height));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: stretch;
    gap: 0;
    padding: 0 0 1.8vw;
}

/* sits centred under the title, still bobbing */
.home .hero-scroll {
    align-self: center;
    margin: 1.2vw 0 0;
    font-style: italic;
    font-size: var(--ui-text);
    color: var(--muted);
}

.home .hero-title {
    font-size: 1rem;
    line-height: 0.8;
}

/* sized in vw so each line spans the full width at any screen size */
.home .hero-title .title-line-1 {
    font-size: 20.5vw;
    /* tight tracking so the line spans the page edge to edge, like the mockup */
    letter-spacing: -0.045em;
    padding-left: 0.3vw;
}

.home .hero-title .title-line-2 {
    font-size: 14.4vw;
    letter-spacing: -0.034em;
    margin-top: 1.9vw;
}

/* ---------- projects ---------- */
.home .projects {
    margin: 0;
    padding: 0;
    border-top: none;
    scroll-margin-top: var(--nav-height);
}

/* "recent projects" gets the nav brand treatment: a white cell, same size text,
   sitting in the bottom left corner */
.home .section-title {
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    width: 19.8%;
    min-width: max-content;
    height: calc(var(--nav-height) - 1px);
    margin: 0;
    padding: 0 10px 8px;
    box-sizing: border-box;
    border-right: var(--line);
    background-color: #ffffff;
    font-size: 1.4rem;
    font-weight: 400;
    line-height: 1;
}

.home .project-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.home .project-card {
    display: block;
    padding: 0.3rem 0.45rem 1rem 0.5rem;
    background-color: var(--page);
    transition: background-color 0.25s ease-in-out;
}

/* right-hand column gets the divider; every row after the first gets a top line */
.home .project-card:nth-child(even) {
    border-left: var(--line);
}

.home .project-card:nth-child(n+3) {
    border-top: var(--line);
}

/* hover: the cell lights up white (like the nav boxes) while the content shrinks */
.home .project-card:hover,
.home .project-card:focus-visible {
    background-color: #ffffff;
}

.home .project-card img {
    display: block;
    /* curtain reveal (js/reveal.js): clip from the bottom up to hide, then open top to bottom */
    clip-path: inset(0 0 0 0);
    transition: transform 0.4s var(--spring),
        clip-path 0.9s cubic-bezier(0.65, 0, 0.35, 1) var(--curtain-delay, 0s);
}

.home .project-card img.is-curtained {
    clip-path: inset(0 0 100% 0);
}

/* optional second image (or video) that fades in over the first on hover */
.home .project-media {
    position: relative;
}

.home .project-card .project-hover-img {
    display: block;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.35s ease-in-out;
}

.home .project-card:hover .project-hover-img,
.home .project-card:focus-visible .project-hover-img {
    opacity: 1;
}

/* image and text shrink together as one group on hover */
.home .project-card-inner {
    transition: transform 0.4s var(--spring);
}

.home .project-card:hover .project-card-inner,
.home .project-card:focus-visible .project-card-inner {
    transform: scale(0.97);
}

/* the group shrinks instead, so the image doesn't shrink on its own */
.home .project-card:hover img,
.home .project-card:focus-visible img {
    transform: none;
}

.home .project-name,
.home .project-meta {
    /* no inset: lines up with the image's left edge */
    padding: 0;
    font-size: var(--ui-text);
    font-weight: 400;
    line-height: 1.1;
}

.home .project-name {
    margin: 1.6rem 0 0.35rem;
}

.home .project-meta {
    margin: 0;
    color: var(--muted);
}

/* ---------- footer: big question + title, then one row of links ---------- */
.home .site-footer {
    max-width: none;
    margin: 0;
    padding: 0 0 9rem;
    color: var(--ink);
}

.home .footer-title {
    padding: 9vw 0 2.6vw;
    line-height: 0.8;
    color: var(--ink);
}

.home .footer-question {
    font-size: 6vw;
    letter-spacing: -0.046em;
    text-transform: lowercase;
    padding-left: 0.4vw;
}

.home .footer-connect {
    /* a touch smaller than full width so it stops short of the right edge */
    font-size: 13.9vw;
    margin-top: 3vw;
}

/* tracking split so the heavy letters don't touch; the italic takes up the difference */
.home .footer-connect .title-heavy {
    letter-spacing: -0.02em;
}

.home .footer-connect .title-italic {
    letter-spacing: -0.045em;
}

/* one line: contact, social, resume split the left half evenly (a sixth each),
   the credit sits at 80% across; label in black, links in grey */
.home .footer-bottom {
    display: grid;
    grid-template-columns: repeat(3, calc(100% / 6)) 30% 20%;
    align-items: baseline;
    padding: 0.7rem 10px 0;
}

.home .footer-group {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.3rem 0.75rem;
    /* keeps the links clear of the next group's label */
    padding-right: 2rem;
}

/* the label pushes its links to the far end of the column,
   so the space sits between the label and its links */
.home .footer-group > :first-child {
    margin-right: auto;
}

.home .footer-group:last-child {
    grid-column: 5;
}

.home .footer-group h3 {
    margin: 0;
    color: var(--ink);
    font-size: 1.4rem;
    font-weight: 400;
    letter-spacing: inherit;
    text-transform: lowercase;
}

.home .footer-group p {
    margin: 0;
    color: var(--ink);
    font-size: var(--ui-text);
}

.home .footer-group a {
    color: var(--muted);
    font-size: var(--ui-text);
    text-decoration: none;
    transition: color 0.15s ease-in-out;
}

.home .footer-group a:hover {
    color: var(--ink);
}

/* ---------- horizontal lines draw in left to right (js/reveal.js) ---------- */
/* data-line="top" / "bottom" marks which edge gets the line */
.home [data-line] {
    position: relative;
}

.home [data-line]::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background-color: var(--line-colour);
    transform-origin: left center;
    transition: transform 1.8s cubic-bezier(0.65, 0, 0.35, 1);
    pointer-events: none;
}

.home [data-line="bottom"]::after {
    bottom: 0;
}

.home [data-line="top"]::after {
    top: 0;
}

/* hidden until scrolled to; without JS the class is never added, so the lines just show */
.home [data-line].line-waiting::after {
    transform: scaleX(0);
}

/* ---------- tablet: projects stack ---------- */
@media (max-width: 55rem) {
    .home .project-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .home .project-card + .project-card {
        border-left: none;
        border-top: var(--line);
    }

    .home .footer-bottom {
        grid-template-columns: 1fr 1fr;
        row-gap: 1rem;
    }

    .home .footer-group:last-child {
        grid-column: auto;
    }

}

/* ---------- phone: hamburger menu ---------- */
@media (max-width: 35rem) {
    .home .nav {
        grid-template-columns: 1fr auto;
        height: auto;
    }

    .home .nav-brand {
        height: calc(var(--nav-height) - 1px);
    }

    .home .nav-toggle {
        padding: 0 1.25rem;
        border-left: var(--line);
        justify-content: center;
    }

    /* open menu: the three links sit in a row of cells below the brand */
    .home .nav-links li {
        border-top: var(--line);
    }

    .home .nav-links li:first-child {
        border-left: none;
    }

    .home .nav-links a {
        height: 2.75rem;
        padding: 0;
        text-align: left;
        border-top: none;
    }

    .home .hero {
        min-height: 70vh;
    }

    .home .section-title {
        width: auto;
        border-right: none;
    }

    .home .footer-bottom {
        grid-template-columns: 1fr;
    }
}