/**
 * J4Y Mainframe - Image Dithering Styles
 * Placeholder, canvas, and lightbox styles for dithered images
 */

/* ==========================================================================
   Image Wrapper
   ========================================================================== */

.j4y-dither-wrapper {
    position: relative;
    display: inline-block;
    max-width: 100%;
    line-height: 0;
}

/* Preserve WordPress image alignment */
.j4y-dither-wrapper.alignleft {
    float: left;
    margin: 0.5em 1.5em 1em 0;
}

.j4y-dither-wrapper.alignright {
    float: right;
    margin: 0.5em 0 1em 1.5em;
}

.j4y-dither-wrapper.aligncenter {
    display: block;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.j4y-dither-wrapper.alignnone {
    display: inline-block;
    margin: 0.5em 0;
}

/* WordPress block alignment */
.j4y-dither-wrapper.is-style-default,
.j4y-dither-wrapper[class*="align"] {
    max-width: 100%;
}

/* ==========================================================================
   Placeholder (shown while processing)
   ========================================================================== */

.j4y-dither-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100px;
    border: 1px solid var(--border-color);
    background: var(--code-bg);
}

/* Dark mode placeholder - blinking text */
body[data-mode="dark"] .j4y-dither-placeholder::before {
    content: "PROCESSING...";
    font-family: var(--font-crt);
    color: var(--text-color);
    animation: j4y-blink 0.5s step-end infinite;
}

@keyframes j4y-blink {
    50% { opacity: 0; }
}

/* Light mode placeholder - checkerboard pattern */
body[data-mode="light"] .j4y-dither-placeholder {
    background-color: #fff;
    background-image:
        linear-gradient(45deg, #000 25%, transparent 25%, transparent 75%, #000 75%),
        linear-gradient(45deg, #000 25%, transparent 25%, transparent 75%, #000 75%);
    background-size: 4px 4px;
    background-position: 0 0, 2px 2px;
    border: 2px solid #000;
}

body[data-mode="light"] .j4y-dither-placeholder::before {
    content: "Loading...";
    font-family: var(--font-sys-6);
    color: #000;
    background: #fff;
    padding: 4px 8px;
    border: 1px solid #000;
}

/* ==========================================================================
   Canvas (processed image)
   ========================================================================== */

.j4y-dither-canvas {
    display: block;
    max-width: 100%;
    height: auto;
    cursor: pointer;
    border: 1px solid var(--border-color);
}

body[data-mode="light"] .j4y-dither-canvas {
    border: 2px solid #000;
    box-shadow: 2px 2px 0 #000;
}

body[data-mode="dark"] .j4y-dither-canvas {
    box-shadow: 0 0 8px rgba(251, 191, 36, 0.3);
}

/* Hide original image when processed */
.j4y-dither-wrapper img.j4y-dither-original {
    display: none;
}

/* ==========================================================================
   Lightbox
   ========================================================================== */

#j4y-image-lightbox {
    position: fixed;
    inset: 0;
    background: var(--modal-overlay);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

#j4y-image-lightbox.active {
    opacity: 1;
    pointer-events: all;
}

/* Lightbox window */
.j4y-lightbox-window {
    max-width: 90vw;
    max-height: 90vh;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

body[data-mode="light"] .j4y-lightbox-window {
    border: 2px solid #000;
    box-shadow: 4px 4px 0 #000;
    background: #fff;
}

body[data-mode="dark"] .j4y-lightbox-window {
    border: 2px solid var(--text-color);
    box-shadow: 0 0 10px var(--text-color);
}

/* Lightbox header */
.j4y-lightbox-header {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding: 0 8px;
    height: 32px;
    font-family: var(--font-display);
    font-size: 0.8rem;
    background: var(--bg-color);
    overflow: hidden;
}

body[data-mode="dark"] .j4y-lightbox-header {
    background: var(--text-color);
    color: rgba(18, 15, 0, 0.85);
    border-bottom: 1px solid var(--border-color);
}

body[data-mode="light"] .j4y-lightbox-header {
    border-bottom: 2px solid #000;
    background-color: #fff;
    background-image: repeating-linear-gradient(
        to bottom,
        #000 0px, #000 2px,
        #fff 2px, #fff 4px
    );
    background-size: 100% 22px;
    background-position: center;
    background-repeat: no-repeat;
    background-origin: content-box;
    padding: 0 1.5px;
}

/* Lightbox title */
.j4y-lightbox-title {
    flex-grow: 1;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

body[data-mode="dark"] .j4y-lightbox-title {
    text-transform: uppercase;
    font-weight: bold;
    font-size: 1rem;
    letter-spacing: 1px;
}

body[data-mode="light"] .j4y-lightbox-title {
    background: #fff;
    color: #000;
    padding: 0 12px;
    flex-grow: 0;
    margin: 0 auto;
    font-weight: bold;
    font-size: 1rem;
}

/* Lightbox close button */
.j4y-lightbox-close {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    font-size: 1rem;
    line-height: 1;
}

body[data-mode="dark"] .j4y-lightbox-close {
    border: 1px solid rgba(18, 15, 0, 0.85);
    background: var(--text-color);
    color: rgba(18, 15, 0, 0.85);
}

body[data-mode="dark"] .j4y-lightbox-close:hover {
    background: rgba(18, 15, 0, 0.85);
    color: var(--text-color);
}

body[data-mode="dark"] .j4y-lightbox-close::after {
    content: "X";
    font-weight: bold;
    font-size: 10px;
}

body[data-mode="light"] .j4y-lightbox-close {
    border: 2px solid #000;
    width: 22px;
    height: 22px;
    background: #fff;
    box-shadow: 0 0 0 1.5px #fff;
    margin: 0 12px;
    color: #000;
}

body[data-mode="light"] .j4y-lightbox-close:active {
    background: #000;
    box-shadow: 0 0 0 1.5px #fff;
}

/* Lightbox body */
.j4y-lightbox-body {
    padding: 1rem;
    overflow: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg-color);
}

body[data-mode="light"] .j4y-lightbox-body {
    background: #fff;
}

.j4y-lightbox-body img {
    max-width: 100%;
    max-height: calc(90vh - 60px);
    object-fit: contain;
}

/* Spacer for header balance */
.j4y-lightbox-spacer {
    width: 22px;
    margin: 0 12px;
}