@charset "UTF-8";

/* =========================
   1. Font Imports
========================= */

@font-face {
    font-family: 'ABCDiatype';
    src: url('../font/ABCDiatypeVariable.ttf') format('truetype');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

/* =========================
   2. Variables
========================= */

:root {
    --font-reg: 'ABCDiatype';

    --font-size: 8pt;
    --margin: 1rem;
    --letter-spacing: 0.15em;
    --line-height: 1.5;

    --panel-width: 40vw;
    --visual-width-open: 60vw;

    --light-bg: white;
    --dark-bg: black;
}

/* =========================
   3. Reset / Base
========================= */

html,
body {
    margin: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: white;
}

a {
    text-decoration: none;
}

h3 {
    font-size: var(--font-size);
    font-weight: 600;
    line-height: var(--line-height);
    text-transform: uppercase;
    margin: 0;
}

sup {
    text-transform: uppercase;
    font-size: 0.7em;
    position: relative;
    top: -0.3em;
}

.cite-heading {
    min-width: calc(var(--margin) * 2);
    padding-block: 0;
}

b {
    font-weight: 450;
}

i {
    font-style: italic;
}

p {
    margin: 0;
}

.reference-list {
    text-align: left;
    hyphens: none;
}

.colophon {
    margin-top: var(--margin);
    border: 1px black solid;

    padding: var(--margin);

    display: flex;
    flex-direction: column;
    gap: calc(var(--margin) / 2);
}


/* =========================
   4. Layout
========================= */

.viewer {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

.track {
    display: flex;
    height: 100vh;
}

.slide {
    position: relative;

    width: 100vw;
    height: 100vh;
    flex-shrink: 0;

    display: flex;
    overflow: hidden;

    font-family: var(--font-reg);
    font-size: var(--font-size);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing);
}

/* =========================
   5. Background Image
========================= */

.slide-bg {
    position: absolute;
    inset: 0;

    width: 100vw;
    height: 100vh;

    object-fit: cover;
    object-position: center center;

    z-index: 0;

    transform: scale(1);
    transform-origin: center center;

    transition: transform 0.5s ease;
}

.slide.panel-open .slide-bg {
    width: 100vw;
    transform: scale(1.1);
    transform-origin: 40vw center;
}

/* =========================
   6. Panels
========================= */

.visual-panel,
.text-panel {
    position: relative;
    height: 100vh;
    flex-shrink: 0;
    overflow: hidden;

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

    transition: width 0.5s ease;
}

.visual-panel {
    width: 100vw;
    z-index: 1;
}

.text-panel {
    width: 0;
    z-index: 2;

    background: transparent;
    color: white;

    text-transform: none;
    font-size: 10pt;
    line-height: 1.45;
    letter-spacing: 0.1pt;
    font-weight: 350;
    text-align: justify;
    text-justify: inter-word;
    hyphens: auto;
    word-spacing: -0.5pt;
    text-rendering: optimizeLegibility;
}

.fig-container {
    border: 1px black solid;
    margin-block: var(--margin);
    text-align: left;
    hyphens: none;
}

.fig-text {
    display: flex;
    flex-direction: row;
}

.fig-title,
.fig-desc {
    padding: var(--margin);
}

.fig-title {
    min-width: calc(var(--margin) * 3);
}

.fig-image {
    width: 100%;
    height: fit-content;
    overflow: hidden;

    border-top: 1px black solid;
}

.fig-image img {
    width: 100%;
    height: 100%;

    object-fit: cover;
    object-position: center;
    display: block;
}

/* Text panel boxes */

.text-panel-inner,
.text-panel-settings {
    position: absolute;

    width: calc(var(--panel-width) - ((var(--margin) * 3) * 2));
    height: calc(50% - (var(--margin) * 3));

    box-sizing: border-box;
    margin: calc(var(--margin) * 3);
    padding-inline: calc(var(--margin) * 1.5);

    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-gutter: stable;

    color: black;
    border: 1px white solid;

    transition:
        height 0.5s ease,
        opacity 0.25s ease,
        transform 0.5s ease;

    display: flex;
    flex-direction: column;
    gap: calc(var(--margin) / 2);
}

.text-panel-inner {
    top: 0;
    padding-block: calc(var(--margin) * 1.5);
    background-color: rgb(230, 230, 230);
    border-bottom: 0.5px black solid;

    z-index: 20;
}

.text-panel-settings {
    bottom: 0;
    padding-block: calc(var(--margin) * 1.5);
    background: white;
    border-top: 0.5px black solid;

    z-index: 10;
}

/* Mutually exclusive expanded states */

.text-panel.inner-expanded .text-panel-inner {
    height: calc(100% - (var(--margin) * 18));
    z-index: 30;
    border-bottom: 1px black solid;
}

.text-panel.inner-expanded .arrow-t {
    transform:
        translateY(calc(50vh - (var(--margin) * 16))) rotate(-180deg);
}

.text-panel.inner-expanded .arrow-ts {
    transform:
        translateY(calc(50vh - (var(--margin) * 14))) rotate(0deg);
}

.text-panel.settings-expanded .text-panel-settings {
    height: calc(100% - (var(--margin) * 18));
    z-index: 30;
    border-top: 1px black solid;
}

/* when settings section expands, both move up */
.text-panel.settings-expanded .arrow-t {
    transform:
        translateY(calc(-50vh + (var(--margin) * 14))) rotate(0deg);
}

.text-panel.settings-expanded .arrow-ts {
    transform:
        translateY(calc(-50vh + (var(--margin) * 16))) rotate(-180deg);
}

/* text panel inner fade */

.text-inner-fade {
    position: absolute;
    left: calc(var(--margin) * 3);

    width: calc(var(--panel-width) - ((var(--margin) * 3) * 2));
    height: 6rem;

    pointer-events: none;
    z-index: 40;

    opacity: 0;

    transition:
        top 0.5s ease,
        opacity 0.5s ease,
        transform 0.5s ease;
}

.text-inner-fade.top {
    top: calc(var(--margin) * 3);

    background: linear-gradient(to bottom,
            rgba(230, 230, 230, 1),
            rgba(230, 230, 230, 0));
}

.text-inner-fade.bottom {
    top: calc(50% - 6rem);

    background: linear-gradient(to bottom,
            rgba(230, 230, 230, 0),
            rgba(230, 230, 230, 1));
}

.text-panel.inner-expanded .text-inner-fade.bottom {
    top: calc(100% - (var(--margin) * 15) - 6rem);
}

.text-panel.has-inner-overflow:not(.inner-at-top) .text-inner-fade.top {
    opacity: 1;
}

.text-panel.has-inner-overflow:not(.inner-at-bottom) .text-inner-fade.bottom {
    opacity: 1;
}

.text-panel.inner-expanded .settings-fade.top {
    transform: translateY(calc(var(--margin) * 11.775));
}

/* text-panel-settings */

.settings-container {
    display: flex;
    flex-direction: column;
    gap: var(--margin);
}

.gen-desc {
    padding-block: calc(var(--margin) / 2);
}

.gen-settings,
.ref-settings {
    border: 1px black solid;
    width: 100%;
    height: fit-content;
}

.settings-justified {
    display: flex;
    justify-content: space-between;
    padding: var(--margin);
}

.s-line {
    border: 0.5px black solid;
    width: 100%;
}

.img-format {
    border: 1px black solid;
    padding-inline: 2px;
}

.img-ref {
    width: 100%;
    aspect-ratio: 1 / 1;
    height: auto;
    overflow: hidden;

    border-top: 1px black solid;
}

.img-ref img {
    width: 100%;
    height: 100%;

    object-fit: cover;
    object-position: center;
    display: block;
}

.citation {
    display: flex;
    flex-direction: row;

    align-items: start;
    justify-content: left;

    text-align: left;
    hyphens: none;
}

.liveDateTime {
    padding-top: var(--margin);
}

/* ref + source toggle */

.img-ref,
.source-desc {
    max-height: 0;
    overflow: hidden;
    opacity: 0;

    transition:
        max-height 0.5s ease,
        opacity 0.3s ease;
}

.ref-settings.show-img-ref .img-ref {
    max-height: 500px;
    opacity: 1;
}

.ref-settings.show-source-desc .source-desc {
    max-height: 200px;
    opacity: 1;

    border-top: 1px black solid;
    padding: var(--margin);
}

/* text panel settings fade */

.settings-fade {
    position: absolute;

    left: calc(var(--margin) * 3);

    width: calc(var(--panel-width) - ((var(--margin) * 3) * 2));
    height: 6rem;

    pointer-events: none;
    z-index: 35;

    display: none;

    transition:
        top 0.5s ease,
        opacity 0.5s ease,
        transform 0.5s ease;
}

.settings-fade.top {
    background: linear-gradient(to bottom,
            rgba(255, 255, 255, 1),
            rgba(255, 255, 255, 0));
}

.settings-fade.bottom {
    background: linear-gradient(to bottom,
            rgba(255, 255, 255, 0),
            rgba(255, 255, 255, 1));
}

/* collapsed */

.settings-fade.top {
    top: 50%;
}

.settings-fade.bottom {
    top: calc(100% - (var(--margin) * 3) - 6rem);
}

/* expanded */

.text-panel.settings-expanded .settings-fade.top {
    top: calc(var(--margin) * 15);
}

.text-panel.settings-expanded .settings-fade.bottom {}

.text-panel.has-settings-overflow:not(.settings-at-top) .settings-fade.top {
    display: block;
}

.text-panel.has-settings-overflow:not(.settings-at-bottom) .settings-fade.bottom {
    display: block;
}

.text-panel.settings-expanded .text-inner-fade.top,
.text-panel.settings-expanded .text-inner-fade.bottom {
    transform: translateY(calc(-50vh + (var(--margin) * 15)));
}

/* =========================
   7. UI Overlay
========================= */

.ui {
    position: fixed;
    inset: 0;

    width: 100vw;
    height: 100vh;

    z-index: 50;
    pointer-events: none;

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

    font-family: var(--font-reg);
    font-size: var(--font-size);

    transition: width 0.5s ease;
}

.exit-btn,
.text-btn,
.arrow-r,
.arrow-l,
.v-line,
.h-line,
.plus-target,
.arrow-t,
.arrow-ts {
    pointer-events: auto;
}

/* =========================
   8. Crosshair / Grid
========================= */

.v-line,
.h-line {
    position: absolute;
    opacity: 0.5;
}

.v-line {
    left: 50%;
    top: 0;

    height: 100vh;

    border-left: 1px solid black;

    transform: translateX(-50%);
    transition: height 0.5s ease;
}

.h-line {
    position: absolute;

    top: 50%;
    left: 50%;

    width: 100vw;

    border-top: 1px solid black;

    transform: translate(-50%, -50%);
    transition: width 0.5s ease;
}

.plus-target {
    position: absolute;
    left: 50%;
    top: 50%;

    width: 50px;
    height: 50px;

    opacity: 0.5;

    transform: translate(-50%, -50%);
}

.plus-target::before,
.plus-target::after {
    content: "";
    position: absolute;
    background: black;
}

.plus-target::before {
    top: 50%;

    width: 100%;
    height: 2px;

    transform: translateY(-50%);
}

.plus-target::after {
    left: 50%;

    width: 2px;
    height: 100%;

    transform: translateX(-50%);
}

/* =========================
   9. Navigation Buttons
========================= */

.arrow-r,
.arrow-l,
.arrow-t,
.arrow-ts {
    position: absolute;

    width: calc(var(--margin) * 2);
    aspect-ratio: 1 / 1;
    margin: calc(var(--margin) * 3);

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

    border-radius: 50%;

    cursor: pointer;
    user-select: none;

    font-size: var(--font-size);
    font-weight: 400;
}

.arrow-r,
.arrow-l {
    z-index: 10;

    border: 1px solid black;
    background: white;

    transition: transform 0.3s ease;
}

.arrow-r {
    right: 0;
}

.arrow-l {
    left: 0;
}

.arrow-t,
.arrow-ts {
    color: black;
    z-index: 40;
    transition: transform 0.5s ease;
}

.arrow-t {
    transform:
        translateY(calc(var(--margin) * -1)) rotate(0deg);
}

.arrow-ts {
    transform:
        translateY(calc(var(--margin) * 1)) rotate(0deg);
}

/* =========================
   10. Top Buttons
========================= */

.exit-btn,
.text-btn {
    position: absolute;

    aspect-ratio: 1 / 1;
    margin: calc(var(--margin) * 3);

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

    cursor: pointer;

    font-weight: 300;
    font-size: calc(var(--font-size) * 1.5);
}

.exit-btn {
    top: 0;
    left: 0;
}

.text-btn {
    top: 0;
    right: 0;

    width: calc(var(--margin) * 2);

    border: 1px solid black;
    border-radius: 50%;
    background-color: white;

    transition: transform 0.3s ease;
}

/* slide progress */

.slide-progress {
    position: absolute;
    bottom: 0;
    right: 0;
    width: calc(var(--margin) * 2);
    aspect-ratio: 1 / 1;
    margin: calc(var(--margin) * 3);

    font-size: var(--font-size);
    pointer-events: none;
    font-weight: 400;

    z-index: 200;
    color: black;
}

.slide-progress svg {
    position: absolute;
    inset: 0;
    transform: rotate(-90deg);
}

.progress-bg,
.progress-bar {
    fill: none;
    stroke-width: 6;
}

.progress-bg {
    stroke: rgba(0, 0, 0, 0.35);
}

.progress-bar {
    stroke: black;
    stroke-linecap: round;

    stroke-dasharray: 276.46;
    stroke-dashoffset: 276.46;

    transition: stroke-dashoffset 0.5s ease;
}

.progress-count {
    position: absolute;
    bottom: 0;
    right: 0;
    width: calc(var(--margin) * 2);
    aspect-ratio: 1/1;

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

    font-size: var(--font-size);
    letter-spacing: 0;

    color: black;
}

/* =========================
   11. Cover Slide
========================= */

.cover-title,
.cover-year {
    position: absolute;

    margin: calc(var(--margin) * 3);

    z-index: 3;

    transform: translate(0, calc(-1.5 * var(--margin)));
}

.cover-title {
    left: 0;
}

.cover-year {
    left: calc(50% - (calc(1.5 * var(--margin))));
}

.cover-desc {
    position: absolute;
    bottom: 0;
    left: 0;

    height: calc(var(--margin) * 6);
    width: calc(50vw - (var(--margin) * 3));
    margin: calc(var(--margin) * 3);

    display: flex;
    flex-direction: row;

    z-index: 60;
}

.cover-grey {
    height: calc(var(--margin) * 6);
    aspect-ratio: 1 / 1;

    background-color: rgb(202, 202, 202);

    border: black 1px solid;
    border-right: none;
}

.cover-black {
    height: calc(var(--margin) * 6);
    width: 100%;

    padding-inline: calc(var(--margin) * 2);

    background: white;
    border: black 1px solid;

    color: black;
    line-height: var(--line-height);
    letter-spacing: var(--letter-spacing);
    text-align: center;
    font-weight: 400;

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

.slide.chapter {
    background-color: rgb(255, 255, 255);
}

/* =========================
   12. Slide States
========================= */

.slide.panel-open .visual-panel {
    width: var(--visual-width-open);
}

.slide.panel-open .text-panel {
    width: var(--panel-width);
}

.viewer.panel-open .ui {
    width: var(--visual-width-open);
}

.viewer.panel-open .h-line {
    width: calc(100vw + var(--panel-width));
}

.viewer.panel-open .v-line {
    height: calc(100vh + var(--panel-width));
}

/* Cover slide */

.viewer.cover-slide .arrow-l {
    display: none;
}

.viewer.cover-slide .arrow-r {
    transform: rotate(-90deg);
}

/* Subcover + Chapter slides */

.viewer.subcover-slide .arrow-l,
.viewer.chapter-slide .arrow-l {
    display: flex;
    left: 0;
    top: auto;
    bottom: 0;
    transform: translateX(-50%);
}

/* Chapter only */

.viewer.chapter-slide .text-btn {
    display: none;
}

/* Normal slides */

.viewer:not(.cover-slide):not(.subcover-slide):not(.chapter-slide) .arrow-l {
    display: flex;
}

/* =========================
   13. Dark UI State
========================= */

.viewer.dark-ui {
    color: white;
    background: var(--dark-bg);
}

.viewer.dark-ui .arrow-r,
.viewer.dark-ui .arrow-l,
.viewer.dark-ui .exit-btn,
.viewer.dark-ui .text-btn {
    color: white;
    border-color: white;
    background-color: transparent;
}

.viewer.dark-ui .text-btn {
    border-color: lime;
    color: lime;
}

.viewer.dark-ui .v-line,
.viewer.dark-ui .h-line {
    border-color: rgba(255, 255, 255, 0.5);
}

.viewer.dark-ui .plus-target::before,
.viewer.dark-ui .plus-target::after {
    background: white;
}

.viewer.dark-ui .slide-progress {
    color: white;
}

.viewer.dark-ui .progress-bg {
    stroke: rgba(255, 255, 255, 0.35);
}

.viewer.dark-ui .progress-bar {
    stroke: rgb(255, 255, 255);
}

.viewer.dark-ui .progress-count {
    color: rgb(255, 255, 255);
}

.viewer.last-slide .arrow-r {
    display: none;
}

/* =========================
   14. Utilities / Overrides
========================= */

.viewer.no-panel-transition .visual-panel,
.viewer.no-panel-transition .text-panel,
.viewer.no-panel-transition .ui,
.viewer.no-panel-transition .slide-bg {
    transition: none;
}





/* =========================
   iPhone View
========================= */

@media (max-width: 1000px) {
    .slide {
        flex-direction: column;
    }

    .visual-panel {
        width: 100vw;
        height: 100vh;
        transition: height 0.5s ease;
    }

    .text-panel {
        position: absolute;
        bottom: 0;
        width: 100vw;
        height: 0;
        transition: height 0.5s ease;
    }

    .slide.panel-open .visual-panel {
        width: 100vw;
        height: 0vh;
        opacity: 0;
    }

    .slide.panel-open .text-panel {
        width: 100vw;
        height: calc(100vh);
    }

    .text-panel-inner,
    .text-panel-settings {
        width: calc(100vw);
        height: calc(50%);

        box-sizing: border-box;
        margin: 0;
    }

    .slide-bg {
        width: 100vw;
        height: 100vh;
    }

    .slide.panel-open .slide-bg {
        transform: scale(1.1);
        transform-origin: center 0vh;
    }

    /* navigation btns */

    .viewer.panel-open .ui {
        width: 100vw;
    }

    .viewer.panel-open .exit-btn,
    .viewer.panel-open .arrow-r,
    .viewer.panel-open .arrow-l,
    .viewer.panel-open .v-line,
    .viewer.panel-open .h-line,
    .viewer.panel-open .plus-target {
        opacity: 0;
        pointer-events: none;
    }

    .text-btn {
        transition: 0.5s ease;
    }

    .viewer.panel-open .text-btn,
    .viewer.panel-open .slide-progress {
        opacity: 1;
        pointer-events: auto;
        z-index: 50;
    }

    .viewer.panel-open .text-btn {
        color: black;
        background-color: rgb(230, 230, 230);
        border-color: black;
    }

    /* extension */


    
    .text-panel.inner-expanded .text-panel-inner {
        height: calc(100% - (var(--margin) * 15));
        z-index: 30;
        border-bottom: 1px black solid;
    }

    .text-panel.inner-expanded .arrow-t {
        transform:
            translateY(calc(50vh - (var(--margin) * 16))) rotate(-180deg);
    }

    .text-panel.inner-expanded .arrow-ts {
        transform:
            translateY(calc(50vh - (var(--margin) * 14))) rotate(0deg);
    }

    .text-panel.settings-expanded .text-panel-settings {
        height: calc(100% - (var(--margin) * 15));
        z-index: 30;
        border-top: 1px black solid;
    }

    /* when settings section expands, both move up */

    .text-panel.settings-expanded .arrow-t {
        transform:
            translateY(calc(-50vh + (var(--margin) * 14))) rotate(0deg);
    }

    .text-panel.settings-expanded .arrow-ts {
        transform:
            translateY(calc(-50vh + (var(--margin) * 16))) rotate(-180deg);
    }



    /* fades */

    .text-inner-fade,
    .settings-fade {
        left: 0;
        width: 100%;
    }

    .text-inner-fade.top {
        top: 0;
    }

    .text-panel.inner-expanded .text-inner-fade.bottom {
        top: calc(49.2%);
    }



    .settings-fade.bottom {
        top: calc(100% - 6rem);
    }

    /* .settings-fade.top {} */

    .text-panel.inner-expanded .settings-fade.top{
        transform: translateY(calc(var(--margin) * 5.8));
    }

    /*  */

    .cover-year {
        left: 0;
        margin-bottom: calc(var(--margin) * -3);
    }

    .cover-desc {
        position: absolute;
        bottom: 0;
        left: 0;

        height: calc(var(--margin) * 8);
        width: calc(100vw - (var(--margin) * 6));
        margin: calc(var(--margin) * 3);
        margin-bottom: calc(var(--margin) * 8);

        display: flex;
        flex-direction: row;

        z-index: 60;
    }

    .cover-grey {
        height: calc(var(--margin) * 8);
        width: var(--margin);
        aspect-ratio: none;

        background-color: rgb(202, 202, 202);

        border: black 1px solid;
        border-right: none;
    }

    .cover-black {
        height: calc(var(--margin) * 8);
        width: 100%;

        padding-inline: calc(var(--margin) * 2);

        background: white;
        border: black 1px solid;

        color: black;
        line-height: var(--line-height);
        letter-spacing: var(--letter-spacing);
        text-align: center;
        font-weight: 400;

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