:root {
    --bg-color-light: #f5f5f5;
    --bg-color-dark: #000;
    --text-color-light: #fff;
    --text-color-dark: #000;
    --font-family: 'Times New Roman', serif;

    --font-size-base: 16px;
    --font-size-small: calc(var(--font-size-base) * 0.75);
    --font-size-large: calc(var(--font-size-base) * 2);

    --padding-base: 20px;
    --padding-extra-small: calc(var(--padding-base) * 0.25);
    --padding-small: calc(var(--padding-base) * 0.5);
    --padding-large: calc(var(--padding-base) * 1.5);
    --padding-extra-large: calc(var(--padding-base) * 2);

    --button-bg-light: #fff;
    --button-bg-dark: #000;
    --button-text-light: #fff;
    --button-text-dark: #000;
    --button-hover-bg: #333;

    --highlight-color: blue;

    --img-width: 100px;
}

/* Global Styles */
body {
    background-color: var(--bg-color-light);
    color: var(--text-color-dark);
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
    text-align: center;
    text-transform: lowercase;
    -webkit-font-smoothing: antialiased;
}

h1 {
    font-size: var(--font-size-large);
    margin-bottom: var(--padding-base);
}

button {
    text-transform: lowercase;
}

/* Sort Controls */
#sort-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--padding-small);
    justify-items: center;
    align-items: center;
    margin-bottom: var(--padding-base);
}

/* Prompt Grid (Homepage) */
#prompt-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--padding-small);
    justify-items: center;
    align-items: center;
    margin-bottom: var(--padding-large);
    position: relative;
    z-index: 1;
}

.interactive-tile {
    color: var(--highlight-color);
    padding: var(--padding-small) var(--padding-base);
    font-family: inherit;
    font-size: var(--font-size-base);
    text-decoration: underline;
    cursor: pointer;
}

.interactive-tile:hover {
    font-weight: bold;
}

/* Shared Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    height: 100dvh;
    width: 100dvw;
    background-color: var(--bg-color-light);
    color: var(--text-color-dark);
    z-index: 1000;
}

.modal.visible {
    display: flex;
}

/* Modal Layout */
#submission-modal {
    margin: auto;
    flex-direction: row;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#modal-header {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    width: 15dvw;
    max-width: 15dvw;
    padding: var(--padding-base);
    background-color: var(--bg-color-dark);
}

.flex-col {
    display: flex;
    flex-direction: column;
    gap: var(--padding-small);
    margin-bottom: var(--padding-extra-large);
}

.modal-content {
    display: flex;
    flex-direction: row;
    gap: var(--padding-base);
    width: 100%;
}

#submission-form {
    display: flex;
    flex-direction: column;
    gap: var(--padding-small);
}

/* Modal Inputs and Buttons */
.modal-input,
.modal-button {
    width: 100%;
    flex: 0 0 auto;
    box-sizing: border-box;
    font-size: var(--font-size-base);
    font-family: inherit;
    padding: var(--padding-small);
}

.modal-button {
    display: inline-block;
    background-color: var(--button-bg-light);
    color: var(--button-text-dark);
    border: none;
    cursor: pointer;
}

.modal-button:hover {
    background-color: var(--highlight-color);
    color: var(--button-text-light);
}

/* Modal Text Display */
#prompt-text {
    text-align: left;
    color: var(--text-color-light);
}

#filename-preview {
    color: var(--text-color-light);
    font-size: var(--font-size-small);
    height: 2.4em;
    line-height: 1.2em;
    text-overflow: ellipsis;
}

/* Image Submission Display */
#submissions-container {
    position: relative;
    height: 100%;
    width: 100%;
}

#submissions-container img {
    position: absolute;
    width: var(--img-width);
    height: auto;
}

#submissions-container .no-submissions {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.submission-wrapper {
    position: absolute;
    cursor: grab;
    touch-action: none;
}

.submission-wrapper .caption {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--highlight-color);
    color: var(--button-text-light);
    font-size: var(--font-size-small);
    padding: 2px 4px;
    white-space: nowrap;
    visibility: hidden;
    opacity: 0;
    z-index: 10;
}

.caption-visible {
    visibility: visible !important;
    opacity: 1 !important;
}

.caption-hidden {
    visibility: hidden !important;
    opacity: 0 !important;
}

.submission-wrapper:hover .caption {
    visibility: visible;
    opacity: 1;
}

.submission-wrapper:active {
    cursor: grabbing;
}

.caption-left {
    text-align: left;
    left: 0 !important;
    right: auto !important;
}

.caption-right {
    text-align: right;
    right: calc(var(--img-width) * -1) !important;
    left: auto !important;
}

#about-modal {
    z-index: 1001;
    justify-content: center;
    align-items: center;
    padding: var(--padding-large);
}

#about-modal .modal-content {
    width: auto;
}

#about-content {
    background-color: var(--bg-color-dark);
    color: var(--text-color-light);
    padding: var(--padding-large);
    max-width: 60dvw;
    margin: 0 auto;
}

#about-content p,
#about-content ul,
#about-content li {
    font-size: var(--font-size-base);
    line-height: 1.5;
    margin: 0;
}

#about-content p {
    text-align: justify;
}

#about-content p.top-spacer {
    margin-top: var(--padding-base);
}

#about-content p.bottom-spacer {
    margin-bottom: var(--padding-large);
}

#about-content a {
    color: var(--text-color-light)
}

#about-content a:hover {
    font-weight: bold;
}

#about-content ul {
    padding-inline-start: var(--padding-base);
    list-style: none;
}

#about-content li {
    text-align: left;
}

#about-content li::before {
    content: "* ";
}

#about-button {
    color: var(--highlight-color);
    cursor: pointer;
    text-decoration: underline;
    font-weight: normal;
}

#about-button:hover {
    font-weight: bold;
}

.uppercase {
    text-transform: uppercase;
}

#modal-header.minimized {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0;
}

#toggle-header {
    display: none;
}

@media (max-width: 768px) {
    .modal-content {
        width: 100dvw;
        max-width: none;
        height: auto;
        max-height: 100dvh;
        flex-direction: column;
        gap: 0;
    }

    #modal-header {
        width: 100%;
        max-width: none;
        height: auto;
        box-sizing: border-box;
    }

    #submissions-container {
        width: 100%;
        min-height: 100dvh;
        overflow: auto;
        position: relative;
    }

    #submission-modal {
        flex-direction: column;
        overflow-y: auto;
    }

    .modal-bottom {
        margin-bottom: 0;
    }

    #toggle-header {
        display: block;
        position: relative;
        z-index: 1001;
        width: 100dvw;
        padding: var(--padding-small);
        background-color: var(--bg-color-dark);
        color: var(--text-color-light);
        border: none;
    }

    #about-modal {
        padding: 0;
    }

    #about-content {
        padding: var(--padding-base);
        max-width: 70dvw;
        max-height: 80dvh;
        overflow-y: auto;
    }
}
/* Accessible controls keep the original blue-link appearance. */
.interactive-tile,
#about-button { border: 0; background: transparent; font-family: inherit; }
#about-button { font-size: inherit; padding: 0 0 0 0.2em; }
:focus-visible { outline: 2px solid blue; outline-offset: 4px; }
#modal-header :focus-visible,
#about-content :focus-visible { outline-color: #fff; }
.modal { box-sizing: border-box; }
#submission-modal .modal-content { height: 100%; min-width: 0; }
#modal-header { box-sizing: border-box; flex: 0 0 clamp(220px, 20vw, 300px); width: auto; max-width: none; overflow-y: auto; }
#submission-form { color: #fff; text-align: left; }
#submission-form label { font-size: var(--font-size-small); }
.file-picker-row { display: flex; align-items: center; gap: 8px; }
.file-picker { position: relative; flex: 0 0 auto; padding: 8px; background: #fff; color: #000; }
.file-picker:focus-within { outline: 2px solid #fff; outline-offset: 4px; }
.file-picker:has(input:disabled) { opacity: 0.65; }
#image-input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.file-picker-row #filename-preview { min-width: 0; }
#image-preview { max-width: 100%; max-height: 130px; object-fit: contain; align-self: flex-start; }
#image-preview[hidden] { display: none; }
#filename-preview { height: auto; overflow-wrap: anywhere; }
#submission-status { font-size: 14px; line-height: 1.35; margin: 0; overflow-wrap: anywhere; }
button:disabled { cursor: wait; opacity: 0.65; }
#submissions-container { flex: 1; min-width: 0; overflow: auto; }
.submission-wrapper { width: var(--img-width); }
.image-button { display: block; width: 100%; padding: 0; border: 0; background: transparent; cursor: grab; touch-action: none; font-family: inherit; }
#submissions-container img { position: static; display: block; width: 100%; height: auto; max-height: 100px; object-fit: contain; }
.caption { box-sizing: border-box; max-width: min(240px, 70vw); white-space: normal !important; overflow-wrap: anywhere; }
.caption-right { right: 0 !important; }
.submission-wrapper.caption-open .caption,
.submission-wrapper:has(.image-button:focus-visible) .caption { visibility: visible; opacity: 1; }
.submission-wrapper:has(.image-button:focus-visible),
.submission-wrapper.caption-open { z-index: 102 !important; }
.is-pending img { outline: 1px dashed blue; outline-offset: 3px; }
#submissions-container.list-view { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 24px; align-content: start; padding: 20px; box-sizing: border-box; }
.list-view .submission-wrapper { position: static; width: 100%; cursor: auto; }
.list-view .image-button { cursor: default; touch-action: auto; }
#submissions-container.list-view img { width: 100%; height: 150px; max-height: 150px; }
.list-view .caption { position: static; visibility: visible; opacity: 1; max-width: none; text-align: left; margin-top: 8px; padding: 6px; }
#about-content { box-sizing: border-box; max-height: 90dvh; overflow-y: auto; }
#home-status:empty { display: none; }
@media (max-width: 768px) {
  #submission-modal .modal-content { height: auto; min-height: 100dvh; }
  #modal-header { flex: none; width: 100%; max-height: 65dvh; }
  #modal-header .modal-top { margin-bottom: 20px; display: grid; grid-template-columns: 1fr 1fr; }
  #prompt-text { grid-column: 1 / -1; }
  #modal-header.minimized { max-height: 0; padding: 0; }
  #submissions-container { flex: none; height: 100dvh; min-height: 100dvh; }
  #about-content { width: min(90dvw, 600px); max-width: none; }
}
.submission-wrapper .caption { width: max-content; max-width: min(240px, 50vw); }
.list-view .submission-wrapper .caption { width: 100%; max-width: none; }
@media (prefers-reduced-motion: reduce) { #modal-header.minimized { transition: none; } }

@media (hover: none) {
  .submission-wrapper:hover .caption { visibility: hidden; opacity: 0; }
  .submission-wrapper.caption-open .caption,
  .submission-wrapper:has(.image-button:focus-visible) .caption,
  .list-view .submission-wrapper .caption { visibility: visible; opacity: 1; }
}