/*--------------------------------------------------------------
# Video effects panel (Settings > Effects and pre-join lobby)
--------------------------------------------------------------*/

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
    color: var(--fg-1, #fff);
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-section {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-section-header i {
    margin: 0;
    padding: 0;
    color: inherit;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
    gap: 8px;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    box-sizing: border-box;
    width: 100% !important;
    height: auto !important;
    min-width: 0;
    min-height: 0;
    margin: 0;
    padding: 0;
    overflow: hidden;
    border: 1px solid var(--room-border, rgba(255, 255, 255, 0.12));
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--fg-1, #fff);
    font-size: 0.75rem;
    font-weight: 500;
    text-align: center;
    box-shadow: none;
    cursor: pointer;
    transition:
        border-color 0.15s ease,
        background-color 0.15s ease,
        transform 0.15s ease;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-card:hover:not(:disabled) {
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.08);
    transform: none;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-card:focus-visible {
    outline: 2px solid var(--room-accent, #66beff);
    outline-offset: 2px;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-card:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-card.active {
    border-color: #4caf50;
    box-shadow: 0 0 0 1px #4caf50;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-card.active::before {
    content: '\f00c';
    position: absolute;
    top: 5px;
    right: 5px;
    z-index: 2;
    display: grid;
    place-items: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #4caf50;
    color: #fff;
    font-family: 'Font Awesome 6 Free';
    font-size: 0.6rem;
    font-weight: 900;
    pointer-events: none;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-card.loading::after {
    content: '';
    position: absolute;
    top: calc(50% - 22px);
    left: calc(50% - 12px);
    z-index: 2;
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.25);
    border-top-color: #fff;
    border-radius: 50%;
    animation: vfx-spin 0.8s linear infinite;
    pointer-events: none;
}

@keyframes vfx-spin {
    to {
        transform: rotate(360deg);
    }
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-thumb {
    position: relative;
    display: grid;
    place-items: center;
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: radial-gradient(circle at 50% 40%, #3a3f4b, #191b22);
    font-size: 1.2rem;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-thumb i {
    margin: 0;
    padding: 0;
    color: rgba(255, 255, 255, 0.75);
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-thumb img {
    width: 82%;
    height: 82%;
    object-fit: contain;
    pointer-events: none;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-badge {
    position: absolute;
    left: 5px;
    bottom: 5px;
    padding: 1px 5px;
    border-radius: 4px;
    background: #2563eb;
    color: #fff;
    font-size: 0.6rem;
    font-weight: 700;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-label {
    display: block;
    padding: 6px 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Filter preview: a colourful sample rendered through the same CSS filter as the 2D fallback */
:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-swatch {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 50% 42%, #f2c7a5 0 18%, transparent 19%),
        radial-gradient(ellipse at 50% 100%, #3b82f6 0 34%, transparent 35%),
        linear-gradient(160deg, #f59e0b 0%, #ef4444 40%, #10b981 75%, #0ea5e9 100%);
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-swatch-tint {
    position: absolute;
    inset: 0;
    mix-blend-mode: soft-light;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 10px;
    background: rgba(59, 130, 246, 0.14);
    font-size: 0.82rem;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-status[data-level='error'] {
    background: rgba(239, 68, 68, 0.16);
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-status i {
    margin: 0;
    padding: 0;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-sliders {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-slider {
    display: grid;
    grid-template-columns: minmax(120px, 34%) 1fr 52px;
    align-items: center;
    gap: 10px;
    margin: 0;
    font-size: 0.82rem;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-slider.disabled {
    opacity: 0.5;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-slider-name {
    display: flex;
    align-items: center;
    gap: 8px;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-slider-name i {
    width: 16px;
    margin: 0;
    padding: 0;
    text-align: center;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-range {
    width: 100%;
    height: 5px;
    margin: 0;
    accent-color: #3498db;
    cursor: pointer;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-slider-value {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-link-btn {
    align-self: flex-start;
    width: auto !important;
    min-height: 34px;
    margin: 0;
    padding: 6px 12px;
    font-size: 0.8rem;
}

:is(#videoEffectsPanel, #initVideoEffectsGrid) .vfx-note {
    display: block;
    margin: 0;
    padding: 0;
    color: color-mix(in srgb, var(--fg-1, #fff) 60%, transparent);
    font-size: 0.75rem;
}

/* Pre-join lobby: compact picker below the device controls */
#initVideoEffectsGrid {
    flex: 1 1 100%;
    width: 100%;
    max-height: 260px;
    margin-top: var(--space-2, 8px);
    padding: 4px;
    overflow-y: auto;
    scrollbar-width: thin;
}

#initVideoEffectsGrid .vfx-compact {
    gap: 10px;
}

#initVideoEffectsGrid .vfx-compact .vfx-grid {
    grid-template-columns: repeat(auto-fill, minmax(68px, 1fr));
    gap: 6px;
}

#initVideoEffectsGrid .vfx-compact .vfx-label {
    padding: 4px 2px;
    font-size: 0.68rem;
}

#initVideoEffectsButton.active {
    border-color: #4caf50;
    color: #4caf50;
}

@media screen and (max-width: 600px) {
    #videoEffectsPanel .vfx-grid {
        grid-template-columns: repeat(auto-fill, minmax(76px, 1fr));
        gap: 6px;
    }

    #videoEffectsPanel .vfx-slider {
        grid-template-columns: 1fr 44px;
    }

    #videoEffectsPanel .vfx-slider .vfx-range {
        grid-column: 1 / -1;
        grid-row: 2;
    }
}