/* ============================================================
   Retro Graphics Viewer & Converter — Bidirectional Stylesheet
   ============================================================ */

.rgv-hidden {
    display: none !important;
}

.rgv-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.15rem;
}

.rgv-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    padding: 0.32rem 0.75rem;
    border-radius: 999px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-hover);
    color: var(--accent);
    white-space: nowrap;
}

.rgv-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success, #00ff88);
    box-shadow: 0 0 8px var(--success, #00ff88);
}

/* Bidirectional Mode Switcher Bar */
.rgv-mode-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.55rem;
    padding: 0.45rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 1.1rem;
}

@media (max-width: 720px) {
    .rgv-mode-bar {
        grid-template-columns: 1fr;
    }
}

.rgv-mode-tab {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.65rem 1rem;
    border-radius: 8px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.rgv-mode-tab:hover {
    color: var(--accent);
    background: var(--accent-glow);
}

.rgv-mode-tab.active {
    background: var(--bg-card-solid);
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

.rgv-btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    align-items: center;
    margin-bottom: 1rem;
}

.rgv-pill-label {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--text-muted);
    margin-right: 0.25rem;
}

.rgv-btn {
    font-family: var(--font-heading);
    font-size: 0.79rem;
    font-weight: 600;
    padding: 0.45rem 0.85rem;
    border-radius: 8px;
    cursor: pointer;
    border: 1px solid var(--border);
    background: var(--bg-card-solid);
    color: var(--text-primary);
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.rgv-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.rgv-btn.active {
    background: var(--accent-glow);
    border-color: var(--accent);
    color: var(--accent);
}

.rgv-btn-primary {
    background: var(--accent);
    color: #050807;
    border-color: var(--accent);
    font-weight: 700;
}

.rgv-btn-primary:hover {
    background: var(--accent-hover, var(--accent));
    color: #050807;
    border-color: var(--accent-hover, var(--accent));
}

.rgv-workbench {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 1.35rem;
    align-items: start;
}

@media (max-width: 1024px) {
    .rgv-workbench {
        grid-template-columns: minmax(0, 1fr);
    }
}

.rgv-drop-zone {
    border: 2px dashed var(--border-hover);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    padding: 1.25rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition);
    margin-bottom: 1rem;
    position: relative;
}

.rgv-drop-zone:hover,
.rgv-drop-zone.dragover,
.rgv-drop-zone:focus-within {
    background: var(--accent-glow);
    border-color: var(--accent);
}

.rgv-drop-zone input[type="file"] {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.rgv-drop-title {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.rgv-drop-hint {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

.rgv-stage-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.65rem;
    padding: 0.65rem 0.9rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-bottom: none;
    border-radius: var(--radius) var(--radius) 0 0;
}

.rgv-scale-group {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.rgv-scale-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-right: 0.3rem;
}

.rgv-canvas-viewport {
    background-color: #050509;
    background-image:
        linear-gradient(45deg, #0d0d16 25%, transparent 25%),
        linear-gradient(-45deg, #0d0d16 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #0d0d16 75%),
        linear-gradient(-45deg, transparent 75%, #0d0d16 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0;
    border: 1px solid var(--border);
    border-radius: 0 0 var(--radius) var(--radius);
    padding: 1.5rem;
    min-height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    position: relative;
}

.rgv-canvas-frame {
    position: relative;
    display: inline-block;
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(255, 255, 255, 0.08);
    line-height: 0;
}

#retroCanvas {
    image-rendering: -moz-crisp-edges;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    image-rendering: pixelated;
    display: block;
    cursor: crosshair;
}

.rgv-canvas-frame.scanlines::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 1px,
        rgba(0, 0, 0, 0.32) 2px,
        rgba(0, 0, 0, 0.32) 3px
    );
    pointer-events: none;
}

.rgv-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(135px, 1fr));
    gap: 0.6rem;
    margin-top: 1rem;
}

.rgv-stat-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.55rem 0.75rem;
}

.rgv-stat-label {
    font-size: 0.67rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    display: block;
}

.rgv-stat-value {
    font-family: var(--font-mono);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--accent);
    margin-top: 0.12rem;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rgv-dock-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.rgv-dock-title {
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.rgv-control-group {
    margin-bottom: 0.75rem;
}

.rgv-control-group:last-child {
    margin-bottom: 0;
}

.rgv-control-label {
    display: block;
    font-size: 0.73rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.3rem;
}

.rgv-select {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 0.45rem 0.65rem;
    border-radius: 7px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border);
    color: var(--text-primary);
    width: 100%;
}

.rgv-select:focus {
    outline: none;
    border-color: var(--accent);
}

.rgv-check-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
}

.rgv-check-row input[type="checkbox"] {
    accent-color: var(--accent);
    width: 15px;
    height: 15px;
}

.rgv-slider-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.25rem;
}

.rgv-slider-val {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent);
}

.rgv-range {
    width: 100%;
    accent-color: var(--accent);
    cursor: pointer;
}

.rgv-palette-drawer {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.rgv-palette-drawer.hidden {
    display: none;
}

.rgv-palette-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.5rem;
    margin-top: 0.6rem;
}

.rgv-swatch-card {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: 0.4rem 0.55rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    cursor: pointer;
    transition: border-color var(--transition);
    text-align: left;
}

.rgv-swatch-card:hover {
    border-color: var(--accent);
}

.rgv-swatch-chip {
    width: 22px;
    height: 22px;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    flex-shrink: 0;
}

.rgv-swatch-meta {
    line-height: 1.25;
    overflow: hidden;
}

.rgv-swatch-name {
    color: var(--text-primary);
    font-weight: 600;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rgv-swatch-hex {
    color: var(--text-muted);
    font-size: 0.68rem;
}

.rgv-howto-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin: 1rem 0 1.25rem;
}

.rgv-howto-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.15rem;
}

.rgv-howto-box h3 {
    margin-top: 0 !important;
    font-size: 0.96rem;
    color: var(--accent);
}

.rgv-howto-box ol {
    padding-left: 1.2rem;
    margin: 0.5rem 0 0;
}

.rgv-howto-box li {
    margin-bottom: 0.4rem;
    font-size: 0.84rem;
}

.rgv-related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(235px, 1fr));
    gap: 0.85rem;
    margin-top: 0.85rem;
}

.rgv-related-card {
    display: block;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.95rem 1.05rem;
    transition: all var(--transition);
    text-decoration: none;
}

.rgv-related-card:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    transform: translateY(-2px);
}

.rgv-related-title {
    font-family: var(--font-heading);
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.rgv-related-desc {
    font-size: 0.79rem;
    color: var(--text-secondary);
    line-height: 1.45;
    margin: 0;
}

.rgv-noscript-banner {
    background: rgba(255, 68, 102, 0.12);
    border: 1px solid #ff4466;
    color: var(--text-primary);
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
    font-size: 0.88rem;
}