/* assets/css/appearance-global.css
 * GusGon Global Appearance & Accessibility Engine Stylesheet
 * Monochrome Dark (#191919 / #141414) + AMOLED / High Contrast / Density / Motion overrides
 */

:root {
    --gusgon-saturation: 100%;
    --gusgon-chat-font-size: 15px;
    --gusgon-message-spacing: 16px;
}

html {
    filter: saturate(var(--gusgon-saturation, 100%));
}

/* 1. Theme Variants */
html[data-theme-variant="amoled"],
html[data-theme-variant="amoled"] body {
    --bg-app: #0a0a0a;
    --bg-base: #0f0f0f;
    --bg-card: #121212;
    --bg-sidebar: #0c0c0c;
    --bg-input: #0d0d0d;
    --bg-hover: #181818;
    --bg-active: #1f1f1f;
}

html[data-theme-variant="contrast"],
html[data-theme-variant="contrast"] body {
    --border: #404040;
    --border-hover: #585858;
    --text-primary: #ffffff;
    --text-secondary: #d4d4d4;
    --text-muted: #a3a3a3;
}

/* 2. High Contrast Borders */
html[data-high-contrast-borders="1"],
html[data-high-contrast-borders="1"] body {
    --border: #484848;
    --border-hover: #646464;
}

/* 3. Reduced Motion Accessibility */
html[data-reduced-motion="1"] *,
html[data-reduced-motion="1"] *::before,
html[data-reduced-motion="1"] *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
}

/* 4. Chat Font Size & Message Spacing */
.msg-text,
.message-content,
.dm-msg-bubble,
.chat-message-text,
.msg-body-text {
    font-size: var(--gusgon-chat-font-size, 15px) !important;
    line-height: 1.46;
}

.msg-group,
.message-row {
    margin-bottom: var(--gusgon-message-spacing, 16px);
}

/* 5. Compact Chat Density */
html[data-chat-density="compact"] .msg-group,
html[data-chat-density="compact"] .message-row,
html[data-chat-density="compact"] .dm-msg-row {
    padding-top: 2px !important;
    padding-bottom: 2px !important;
    margin-top: 1px !important;
    margin-bottom: 2px !important;
    gap: 8px !important;
}

html[data-chat-density="compact"] .msg-avatar,
html[data-chat-density="compact"] .message-avatar {
    width: 28px !important;
    height: 28px !important;
}

/* 6. Media & Link Preview Toggles */
html[data-inline-media="0"] .msg-attachment-image,
html[data-inline-media="0"] .msg-inline-media,
html[data-inline-media="0"] .chat-inline-image {
    display: none !important;
}

html[data-link-previews="0"] .msg-embed-card,
html[data-link-previews="0"] .link-preview-card,
html[data-link-previews="0"] .chat-link-embed {
    display: none !important;
}

html[data-jumbo-emoji="0"] .jumbo-emoji,
html[data-jumbo-emoji="0"] .msg-jumbo-emoji {
    font-size: var(--gusgon-chat-font-size, 15px) !important;
    width: 1.35em !important;
    height: 1.35em !important;
}

/* 7. Discord-Style Dark Shimmer Skeleton Loading Placeholders */
@keyframes gusgonSkeletonShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.sk-shimmer {
    background: linear-gradient(90deg, #1e1e1e 25%, #2a2a2a 50%, #1e1e1e 75%);
    background-size: 200% 100%;
    animation: gusgonSkeletonShimmer 1.35s ease-in-out infinite;
    border-radius: 6px;
}

.sk-msg-group {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 10px 18px;
    margin-bottom: 6px;
    pointer-events: none;
    user-select: none;
}

.sk-msg-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    flex-shrink: 0;
}

.sk-msg-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 2px;
    min-width: 0;
}

.sk-msg-header {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sk-msg-author {
    height: 13px;
    border-radius: 6px;
}

.sk-msg-time {
    width: 44px;
    height: 10px;
    border-radius: 5px;
    opacity: 0.65;
}

.sk-msg-line {
    height: 12px;
    border-radius: 6px;
}

.sk-channel-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 10px;
    margin: 2px 0;
    border-radius: 8px;
    pointer-events: none;
    user-select: none;
}

.sk-channel-icon {
    width: 16px;
    height: 16px;
    border-radius: 5px;
    flex-shrink: 0;
}

.sk-channel-bar {
    height: 12px;
    border-radius: 6px;
}

.sk-member-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 10px;
    margin: 3px 0;
    border-radius: 10px;
    pointer-events: none;
    user-select: none;
}

.sk-member-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
}

.sk-member-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.sk-member-name {
    height: 12px;
    border-radius: 6px;
}

.sk-member-sub {
    height: 9px;
    border-radius: 5px;
    opacity: 0.65;
}


/* 7. Global GPU-Accelerated Discord-Style Dark Skeleton Shimmer System */
@keyframes gusgonSkeletonWave {
    0% {
        transform: translate3d(-100%, 0, 0);
    }
    100% {
        transform: translate3d(100%, 0, 0);
    }
}

.gusgon-skeleton-shimmer,
.sk-avatar,
.sk-line,
.sk-pill,
.sk-card,
.sk-media-box {
    position: relative;
    overflow: hidden;
    background-color: #191919;
    border-radius: 6px;
    isolation: isolate;
    contain: paint;
}

.gusgon-skeleton-shimmer::after,
.sk-avatar::after,
.sk-line::after,
.sk-pill::after,
.sk-card::after,
.sk-media-box::after {
    content: "";
    position: absolute;
    inset: 0;
    transform: translate3d(-100%, 0, 0);
    background: linear-gradient(
        90deg,
        rgba(35, 35, 35, 0) 0%,
        rgba(35, 35, 35, 0.85) 50%,
        rgba(35, 35, 35, 0) 100%
    );
    animation: gusgonSkeletonWave 1.35s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    will-change: transform;
    pointer-events: none;
}

.sk-msg-row {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 10px 16px;
    width: 100%;
    box-sizing: border-box;
    pointer-events: none;
    user-select: none;
}

.sk-avatar {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: 50%;
    flex-shrink: 0;
}

.sk-msg-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 2px;
}

.sk-msg-header {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sk-line {
    height: 12px;
    border-radius: 6px;
    width: 65%;
}

.sk-line.sk-xs { width: 22%; height: 10px; }
.sk-line.sk-sm { width: 38%; }
.sk-line.sk-md { width: 58%; }
.sk-line.sk-lg { width: 82%; }
.sk-line.sk-xl { width: 92%; }

.sk-pill {
    height: 14px;
    width: 96px;
    border-radius: 999px;
}

.sk-channel-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 10px;
    margin: 2px 8px;
    border-radius: 6px;
    pointer-events: none;
}

.sk-member-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px;
    margin: 2px 6px;
    border-radius: 8px;
    pointer-events: none;
}

.sk-member-row .sk-avatar {
    width: 32px;
    height: 32px;
    min-width: 32px;
}

.sk-card {
    width: 100%;
    min-height: 84px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.04);
}

.sk-media-box {
    width: 260px;
    max-width: 100%;
    height: 160px;
    border-radius: 10px;
    margin-top: 4px;
}

/* 8. Frozen GIF Performance Hints */
img[data-gif-frozen="1"],
img[data-gif-frozen="0"] {
    backface-visibility: hidden;
}