/* ==========================================================================
   terper.club: the whole site's styles.
   Palette: Verdigris. Dark only, no light-mode variant by design.
   ========================================================================== */

@font-face {
    font-family: 'Oxanium';
    src: url(../fonts/oxanium-var.woff2) format('woff2');
    font-weight: 200 800;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Jost';
    src: url(../fonts/jost-var.woff2) format('woff2');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

:root {
    --shell:  #0A0C0C;
    --ink:    #C3CBC8;
    --dim:    #8B948F;
    --accent: #5FBFAE;
    --hair:   rgba(95, 191, 174, 0.30);

    --face-display: 'Oxanium', system-ui, sans-serif;
    --face-prose:   'Jost', system-ui, sans-serif;

    --gutter: 20px;
}

/* --- reset ------------------------------------------------------------- */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    background: var(--shell);
}

body {
    background: var(--shell);
    color: var(--ink);
    font-family: var(--face-prose);
    font-weight: 300;
    letter-spacing: 0.01em;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img,
video,
iframe {
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

::selection {
    background: var(--accent);
    color: var(--shell);
}

:focus-visible {
    outline: 1px solid var(--accent);
    outline-offset: 3px;
}

/* Removed from the page but not from the accessibility tree. Used for the
   homepage's <h1>, which the splash carries as a masked wordmark rather
   than as text. Not display:none; that would hide it from screen readers
   too, which is the opposite of the point.                              */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

/* --- the wordmark ------------------------------------------------------
   Drawn as a mask filled with currentColor so it inherits link colour and
   reacts to hover exactly like the nav text does. The inner text is sized
   to zero: invisible on screen, still read by screen readers.            */

.logo {
    display: block;
    width: 104px;
    height: 21px;
    font-size: 0;
    background: currentColor;
    -webkit-mask: url(../media/logo-alpha.png) center / contain no-repeat;
            mask: url(../media/logo-alpha.png) center / contain no-repeat;
}

.logo-link {
    color: var(--ink);
    display: inline-block;
    transition: color 0.18s ease;
}

.logo-link:hover {
    color: var(--accent);
}

/* --- shared layout ------------------------------------------------------ */

.wrapper {
    width: 90%;
    max-width: 1280px;
    margin: 0 auto;
    padding-bottom: 80px;
}

/* --- interior header ---------------------------------------------------- */

.site-head {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 26px;
    padding: 44px 0 22px;
    border-bottom: 1px solid var(--hair);
    margin-bottom: 56px;
}

.nav-h {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.nav-h a,
.nav-v a {
    font-family: var(--face-display);
    font-weight: 300;
    font-size: 12px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--ink);
    transition: color 0.18s ease;
}

.nav-h a:hover,
.nav-v a:hover {
    color: var(--accent);
}

/* Colour alone fails WCAG 1.4.1: accent against ink is only 1.33:1, so
   the underline is what actually carries "you are here". */
.nav-h a.is-current,
.nav-v a.is-current {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 5px;
}

/* --- homepage splash ----------------------------------------------------
   100dvh rather than 100vh so mobile browser chrome cannot crop the nav.  */

body.splash {
    height: 100dvh;
    overflow: hidden;
}

.splash-media {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(.66) contrast(1.04) sepia(.12) hue-rotate(130deg) saturate(.7);
}

/* The photograph is pale across the top and dark along the bottom, so the
   scrim only has to do work in the corner where the nav actually sits.    */
.splash-scrim {
    position: fixed;
    inset: 0;
    background: linear-gradient(
        23deg,
        rgba(7, 10, 10, 0.88) 0%,
        rgba(7, 10, 10, 0.42) 46%,
        rgba(7, 10, 10, 0.20) 100%
    );
}

.splash-nav {
    position: fixed;
    left: 7%;
    bottom: 7%;
    z-index: 2;
}

.splash-nav .logo {
    width: 169px;
    height: 34px;
    margin-bottom: 34px;
    color: var(--ink);
}

.nav-v {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.nav-v a {
    font-size: 13px;
    letter-spacing: 0.30em;
}

/* --- category pages ----------------------------------------------------- */

.page-head {
    margin-bottom: 40px;
}

.page-title {
    font-family: var(--face-display);
    font-weight: 200;
    font-size: 34px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink);
}

.poster {
    display: block;
    width: 100%;
    height: auto;
    margin-bottom: 56px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gutter);
}

.tile img {
    display: block;
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    object-position: top;
    transition: opacity 0.22s ease;
}

/* Tiles anchor their square crop to the top, which suits every cover whose
   subject sits high in the frame. Mycelium Parlour's is a night shot with
   the installation low against the treeline, so a top crop shows sky and
   little else. This anchors that one to the bottom instead. */
.tile img.crop-bottom {
    object-position: bottom;
}

.tile:hover img {
    opacity: 0.72;
}

.tile-cap {
    display: block;
    margin-top: 10px;
    font-family: var(--face-display);
    font-weight: 300;
    font-size: 10px;
    letter-spacing: 0.20em;
    text-transform: uppercase;
    line-height: 1.7;
}

.cap-name {
    display: block;
    color: var(--ink);
    transition: color 0.22s ease;
}

.cap-venue {
    display: block;
    color: var(--dim);
}

.tile:hover .cap-name {
    color: var(--accent);
}

/* --- detail pages ------------------------------------------------------- */

.project-header {
    margin-bottom: 52px;
}

.project-title {
    font-family: var(--face-display);
    font-weight: 200;
    font-size: 42px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    line-height: 1.15;
    color: var(--ink);
    margin-bottom: 10px;
}

.project-subtitle {
    font-family: var(--face-display);
    font-weight: 300;
    font-size: 11px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--dim);
    margin-bottom: 30px;
}

.project-description {
    max-width: 62ch;
    overflow-wrap: anywhere;
}

.project-description p + p,
.prose p + p {
    margin-top: 20px;
}

.media-section {
    margin-bottom: var(--gutter);
}

.media-grid {
    display: grid;
    gap: var(--gutter);
}

.media-grid.single {
    grid-template-columns: 1fr;
}

.media-grid.double {
    grid-template-columns: 1fr 1fr;
}

.media-item img,
.media-item video {
    display: block;
    width: 100%;
    height: auto;
}

.media-item img + img,
.media-item video + img,
.media-item img + video {
    margin-top: var(--gutter);
}

.media-item iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    height: auto;
    display: block;
    border: 0;
}

.media-caption {
    margin-top: 8px;
    font-family: var(--face-display);
    font-weight: 300;
    font-size: 10px;
    letter-spacing: 0.20em;
    text-transform: uppercase;
    color: var(--dim);
}

.media-caption:empty {
    display: none;
}

.project-details {
    margin: 56px 0;
    padding-top: 30px;
    border-top: 1px solid var(--hair);
}

/* auto-fit rather than a fixed four, so mycelium-parlour-1's fifth entry
   (the photo credit) lays out in five columns while every other page still
   lays out in four, and the whole thing reflows without breakpoint help. */
.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 30px;
}

.detail-item h4 {
    font-family: var(--face-display);
    font-weight: 300;
    font-size: 10px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 8px;
}

.detail-item p {
    font-size: 14px;
    color: var(--dim);
}

.project-nav {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--hair);
}

.project-nav > div:last-child {
    text-align: right;
}

.nav-label {
    font-family: var(--face-display);
    font-weight: 300;
    font-size: 9px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--dim);
    margin-bottom: 6px;
}

.project-nav a {
    font-family: var(--face-display);
    font-weight: 300;
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink);
    transition: color 0.18s ease;
}

.project-nav a:hover {
    color: var(--accent);
}

/* --- bio and contact ---------------------------------------------------- */

.prose {
    max-width: 62ch;
    color: var(--ink);
}

.prose a {
    color: var(--accent);
    border-bottom: 1px solid var(--hair);
}

.prose a:hover {
    border-bottom-color: var(--accent);
}

.prose i {
    color: var(--dim);
    font-style: italic;
}

.prose strong {
    font-family: var(--face-display);
    font-weight: 300;
    font-size: 11px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--dim);
}

.bio-grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 56px;
    align-items: start;
}

.bio-image img,
.contact-image img {
    display: block;
    width: 100%;
    height: auto;
}

/* Contact is two lines of text on its own. The photograph sits under them
   at full width, spaced to match the gap the page heading already leaves. */
.contact-image {
    margin-top: 40px;
}

.contact-block {
    display: flex;
    flex-direction: column;
    gap: 16px;
    font-family: var(--face-display);
    font-weight: 300;
    font-size: 14px;
    letter-spacing: 0.20em;
    text-transform: uppercase;
}

.contact-block a {
    color: var(--accent);
}

.contact-block span {
    color: var(--dim);
}

/* --- footer -------------------------------------------------------------- */

.site-foot {
    margin-top: 90px;
    padding-top: 26px;
    border-top: 1px solid var(--hair);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    font-family: var(--face-display);
    font-weight: 300;
    font-size: 10px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--dim);
}

.foot-links {
    display: flex;
    flex-wrap: wrap;
    gap: 26px;
}

.foot-links a {
    color: var(--dim);
    transition: color 0.18s ease;
}

.foot-links a:hover {
    color: var(--accent);
}

/* --- responsive ---------------------------------------------------------- */

@media (max-width: 1000px) {
    .grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bio-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 700px) {
    .grid {
        grid-template-columns: 1fr;
    }

    .media-grid.double {
        grid-template-columns: 1fr;
    }

    .nav-h {
        gap: 18px;
    }

    .nav-h a {
        font-size: 10px;
        letter-spacing: 0.20em;
    }

    .project-title {
        font-size: 30px;
    }

    .page-title {
        font-size: 26px;
    }

    .project-nav {
        flex-direction: column;
    }

    .project-nav > div:last-child {
        text-align: left;
    }

    .splash-nav .logo {
        width: 130px;
        height: 26px;
        margin-bottom: 26px;
    }

    .nav-v a {
        font-size: 12px;
    }
}