:root {
    --lumi-glass-bg: rgba(255, 255, 255, 0.14);
    --lumi-glass-bg-strong: rgba(28, 28, 30, 0.72);
    --lumi-glass-bg-light: rgba(245, 245, 247, 0.78);
    --lumi-glass-border: rgba(255, 255, 255, 0.22);
    --lumi-glass-border-soft: rgba(255, 255, 255, 0.12);
    --lumi-glass-blur: 32px;
    --lumi-glass-saturation: 180%;

    --lumi-radius-xs: 8px;
    --lumi-radius-sm: 12px;
    --lumi-radius-md: 16px;
    --lumi-radius-lg: 22px;
    --lumi-radius-xl: 28px;
    --lumi-radius-pill: 999px;
    --lumi-radius-icon: 22.5%;

    --lumi-shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.18);
    --lumi-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.28), 0 2px 6px rgba(0, 0, 0, 0.18);
    --lumi-shadow-lg: 0 30px 80px -20px rgba(0, 0, 0, 0.55), 0 12px 30px rgba(0, 0, 0, 0.32);
    --lumi-shadow-icon: 0 6px 14px rgba(0, 0, 0, 0.32), 0 2px 4px rgba(0, 0, 0, 0.18);
    --lumi-shadow-icon-hover: 0 14px 30px rgba(0, 0, 0, 0.42), 0 4px 8px rgba(0, 0, 0, 0.22);

    --lumi-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --lumi-ease: cubic-bezier(0.32, 0.72, 0, 1);
    --lumi-snap: cubic-bezier(0.16, 1, 0.3, 1);

    --lumi-text: rgba(255, 255, 255, 0.95);
    --lumi-text-soft: rgba(255, 255, 255, 0.65);
    --lumi-text-faint: rgba(255, 255, 255, 0.42);

    --lumi-online: #34c759;
    --lumi-warn: #ff9f0a;
    --lumi-danger: #ff453a;

    --lumi-safe-top: env(safe-area-inset-top, 0px);
    --lumi-safe-bottom: env(safe-area-inset-bottom, 0px);
}

body.theme-light {
    --lumi-glass-bg: rgba(255, 255, 255, 0.6);
    --lumi-glass-bg-strong: rgba(245, 245, 247, 0.85);
    --lumi-glass-border: rgba(0, 0, 0, 0.08);
    --lumi-glass-border-soft: rgba(0, 0, 0, 0.05);
    --lumi-text: rgba(0, 0, 0, 0.92);
    --lumi-text-soft: rgba(0, 0, 0, 0.6);
    --lumi-text-faint: rgba(0, 0, 0, 0.38);
}

html, body {
    cursor: default !important;
}

#desktop {
    transition: filter 0.4s var(--lumi-ease);
}

body.lumi-dimmed #desktop {
    filter: blur(20px) brightness(0.6);
}

.window {
    border-radius: var(--lumi-radius-md) !important;
    background: var(--lumi-glass-bg-strong) !important;
    backdrop-filter: blur(var(--lumi-glass-blur)) saturate(var(--lumi-glass-saturation)) !important;
    -webkit-backdrop-filter: blur(var(--lumi-glass-blur)) saturate(var(--lumi-glass-saturation)) !important;
    border: 1px solid var(--lumi-glass-border) !important;
    box-shadow: var(--lumi-shadow-lg) !important;
}

.window-header {
    background: rgba(255, 255, 255, 0.05) !important;
    border-bottom: 1px solid var(--lumi-glass-border-soft) !important;
    height: 36px !important;
    padding: 0 12px !important;
}

.window-controls { gap: 8px !important; padding-right: 4px; }
.window-control {
    width: 13px !important;
    height: 13px !important;
    border-radius: 50% !important;
    box-shadow: inset 0 0 0 0.5px rgba(0,0,0,0.18);
    color: transparent !important;
    transition: filter 0.15s ease;
}
.window-controls:hover .window-control { color: rgba(0,0,0,0.55) !important; }
.window-control:hover { filter: brightness(1.08); }

#context-menu {
    background: var(--lumi-glass-bg-strong) !important;
    backdrop-filter: blur(var(--lumi-glass-blur)) saturate(var(--lumi-glass-saturation)) !important;
    -webkit-backdrop-filter: blur(var(--lumi-glass-blur)) saturate(var(--lumi-glass-saturation)) !important;
    border: 1px solid var(--lumi-glass-border) !important;
    border-radius: var(--lumi-radius-sm) !important;
    box-shadow: var(--lumi-shadow-md) !important;
    padding: 6px !important;
    color: var(--lumi-text);
    min-width: 220px;
}
.context-menu-item {
    border-radius: 8px !important;
    padding: 8px 12px !important;
    transition: background 0.12s ease;
}
.context-menu-item:hover {
    background: var(--accent-color, #4a90e2) !important;
    color: white;
}
.context-menu-separator {
    background: var(--lumi-glass-border-soft) !important;
    margin: 4px 8px !important;
}

.os-button {
    background: var(--accent-color, #0a84ff) !important;
    border-radius: var(--lumi-radius-sm) !important;
    padding: 7px 14px !important;
    font-weight: 500 !important;
    font-size: 12px !important;
    transition: transform 0.15s var(--lumi-spring), box-shadow 0.2s var(--lumi-ease), filter 0.15s ease !important;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}
.os-button:hover { transform: translateY(-1px) scale(1.02) !important; filter: brightness(1.08); }
.os-button:active { transform: translateY(0) scale(0.98) !important; }

.luminal-alert-box {
    border-radius: var(--lumi-radius-lg) !important;
    background: var(--lumi-glass-bg-strong) !important;
    backdrop-filter: blur(var(--lumi-glass-blur)) saturate(var(--lumi-glass-saturation)) !important;
    -webkit-backdrop-filter: blur(var(--lumi-glass-blur)) saturate(var(--lumi-glass-saturation)) !important;
    border: 1px solid var(--lumi-glass-border) !important;
}

.startup-modal {
    border-radius: var(--lumi-radius-lg) !important;
    background: var(--lumi-glass-bg-strong) !important;
    backdrop-filter: blur(var(--lumi-glass-blur)) saturate(var(--lumi-glass-saturation)) !important;
    -webkit-backdrop-filter: blur(var(--lumi-glass-blur)) saturate(var(--lumi-glass-saturation)) !important;
    border: 1px solid var(--lumi-glass-border) !important;
}

.icon {
    border-radius: var(--lumi-radius-md) !important;
    transition: background-color 0.18s var(--lumi-ease), transform 0.18s var(--lumi-spring) !important;
    padding: 8px 6px 10px !important;
}
.icon:hover {
    background-color: rgba(255, 255, 255, 0.18) !important;
    transform: scale(1.04);
}
.icon span {
    font-size: 12px !important;
    font-weight: 500 !important;
    margin-top: 6px !important;
    text-shadow: 0 1px 3px rgba(0,0,0,0.6) !important;
    letter-spacing: 0.01em;
}

#start-menu {
    display: none !important;
}

#sidebar-ad-container {
    display: none !important;
}

#admin-announcement {
    border-radius: var(--lumi-radius-md) !important;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    background: rgba(10, 132, 255, 0.85) !important;
    box-shadow: var(--lumi-shadow-md);
    top: calc(20px + var(--lumi-safe-top)) !important;
}

@media (max-width: 768px) {
    .window {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: 100vw !important;
        height: calc(100vh - 90px - var(--lumi-safe-bottom)) !important;
        border-radius: 0 !important;
        max-width: none !important;
        max-height: none !important;
    }
    .window-header { cursor: default !important; }
    .resizer { display: none !important; }
    .icon span { font-size: 11px !important; }
}

.lumi-fade-in {
    animation: lumiFadeIn 0.25s var(--lumi-ease) both;
}
@keyframes lumiFadeIn {
    from { opacity: 0; transform: translateY(6px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

body.lumi-window-fullscreen #lumi-menubar {
    transform: translateY(-110%);
    transition: transform 0.32s var(--lumi-ease);
    pointer-events: none;
}
body.lumi-window-fullscreen.lumi-peek-top #lumi-menubar {
    transform: translateY(0);
    pointer-events: auto;
}
body.lumi-window-fullscreen #taskbar {
    transform: translateX(-50%) translateY(150%);
    transition: transform 0.32s var(--lumi-ease);
    pointer-events: none;
}
body.lumi-window-fullscreen.lumi-peek-bottom #taskbar {
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}
body.lumi-window-fullscreen .window.lumi-window--tabfs {
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    border-radius: 0 !important;
    border-left: 0 !important;
    border-right: 0 !important;
    border-bottom: 0 !important;
}
body.lumi-window-fullscreen #desktop { padding-top: 0 !important; }

#lumi-snap-zone {
    position: fixed;
    pointer-events: none;
    background: rgba(120, 180, 255, 0.18);
    border: 1.5px solid rgba(120, 180, 255, 0.6);
    border-radius: 14px;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), 0 18px 40px rgba(0, 0, 0, 0.32);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 10500;
    opacity: 0;
    transform: scale(0.96);
    transition: opacity 0.16s var(--lumi-ease), transform 0.18s var(--lumi-snap), left 0.16s var(--lumi-ease), top 0.16s var(--lumi-ease), width 0.16s var(--lumi-ease), height 0.16s var(--lumi-ease);
}
#lumi-snap-zone.lumi-snap-zone--visible {
    opacity: 1;
    transform: scale(1);
}

#lumi-wallpaper-logo {
    position: fixed;
    top: 80%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    pointer-events: none;
    white-space: nowrap;
    font-family: Impact, "Anton", "Oswald", "Arial Black", sans-serif;
    line-height: 1;
    letter-spacing: 0.04em;
    text-shadow: 0 2px 14px rgba(0, 0, 0, 0.55), 0 0 4px rgba(0, 0, 0, 0.35);
}
#lumi-wallpaper-logo .lumi-wp-logo__lum {
    font-size: clamp(48px, 7.5vw, 110px);
    color: #ffffff;
}
#lumi-wallpaper-logo .lumi-wp-logo__os {
    font-size: clamp(28px, 4.5vw, 64px);
    color: #a855f7;
    margin-left: 6px;
    vertical-align: baseline;
}

.lumi-themes__section { margin-bottom: 6px; }
.lumi-themes__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}
.lumi-themes__row-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1 1 320px;
    min-width: 0;
}

.lumi-wp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
    gap: 10px;
    max-height: 340px;
    overflow-y: auto;
    padding: 4px 4px 8px;
    margin-top: 8px;
}
.lumi-wp-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 22px;
    opacity: 0.55;
    font-size: 13px;
}
.lumi-wp-tile {
    position: relative;
    aspect-ratio: 16 / 10;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(0, 0, 0, 0.3);
    cursor: pointer;
    padding: 0;
    transition: transform 0.18s var(--lumi-spring), box-shadow 0.18s var(--lumi-ease), border-color 0.18s ease;
}
.lumi-wp-tile:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.32);
    border-color: rgba(255, 255, 255, 0.22);
}
.lumi-wp-tile--active {
    border-color: var(--accent-color, #4a90e2);
    box-shadow: 0 0 0 2px var(--accent-color, #4a90e2);
}
.lumi-wp-tile img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.lumi-wp-tile .lumi-wp-logo {
    position: absolute;
    top: 80%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    white-space: nowrap;
    font-family: Impact, "Anton", "Oswald", "Arial Black", sans-serif;
    line-height: 1;
    letter-spacing: 0.04em;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.55);
}
.lumi-wp-tile .lumi-wp-logo__lum {
    font-size: 22px;
    color: #ffffff;
}
.lumi-wp-tile .lumi-wp-logo__os {
    font-size: 14px;
    color: #a855f7;
    margin-left: 3px;
}