/* ============================================
   RED FOX — VIDEO STEGANOGRAPHY PAGE
   ============================================ */

/* Page-level theming */
.red-page {
    background: var(--color-bg);
    background-size: cover;
    background-position: center;
}

/* Help popover styles (.info-button, .red-help-popover) now live in style.css so they apply site-wide. */

/* Hidden video element used for frame capture — must stay off-screen but remain in DOM */
.red-video-offscreen {
    position: fixed;
    top: -1000px;
    left: -1000px;
    opacity: 0;
    pointer-events: none;
    width: 320px;
    height: 180px;
}

/* Error Banner */
.red-error-banner {
    max-width: 800px;
    margin: 10px auto;
    padding: 12px 20px;
    background: rgba(139, 69, 69, 0.15);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    font-size: 0.95rem;
    display: none !important;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    animation: fadeSlideIn 0.3s ease;
}

.red-error-banner.is-showing {
    display: flex !important;
}

.error-dismiss-btn {
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 4px;
    margin: 0;
    line-height: 1;
    -webkit-text-fill-color: var(--color-primary);
}

.error-dismiss-btn:hover {
    color: var(--color-text);
    -webkit-text-fill-color: var(--color-text);
    background: none;
    box-shadow: none;
}

@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Drag-and-Drop Upload Zone */
.red-upload-section {
    max-width: 800px;
    margin: 20px auto;
}

.red-drop-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-base), background var(--transition-base);
    background: rgba(255, 255, 255, 0.02);
    position: relative;
}

.red-drop-zone:hover,
.red-drop-zone.drag-over {
    border-color: var(--color-primary);
    background: rgba(139, 69, 69, 0.05);
}

.red-drop-icon {
    font-size: 3rem;
    margin-bottom: 10px;
}

.red-drop-text {
    font-size: 1.1rem;
    color: var(--color-text);
    margin-bottom: 8px;
    -webkit-text-fill-color: var(--color-text);
}

.red-drop-hint {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    -webkit-text-fill-color: var(--color-text-muted);
}

.red-drop-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.red-file-info {
    margin-top: 12px;
    padding: 10px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--color-text);
    text-align: center;
}

.red-file-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: bold;
    margin-left: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.red-file-badge.image-badge {
    background: rgba(139, 69, 69, 0.2);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    -webkit-text-fill-color: var(--color-primary);
}

.red-file-badge.video-badge {
    background: rgba(139, 69, 69, 0.2);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    -webkit-text-fill-color: var(--color-primary);
}

.red-container-output {
    padding: 0 20px;
    text-align: left;
}

.red-empty-state,
.red-container-caveat {
    color: var(--color-text-muted);
}

.red-container-summary {
    margin-bottom: 10px;
    color: var(--color-text);
    font-weight: 700;
}

.red-container-structures {
    overflow-wrap: anywhere;
    color: var(--color-text-muted);
    font-family: 'Courier New', monospace;
    font-size: 0.82rem;
}

.red-finding {
    display: grid;
    gap: 3px;
    margin-top: 8px;
    padding: 10px 12px;
    border-left: 3px solid var(--color-border);
    background: rgba(0, 0, 0, 0.2);
}

.red-finding-concern,
.red-finding-warning {
    border-left-color: var(--color-primary);
}

.red-finding-info {
    border-left-color: #7bd389;
}

.red-container-caveat {
    margin: 12px 0 0;
    font-size: 0.8rem;
}

/* Frame Stepping Buttons */
.red-frame-btn {
    font-size: 0.9rem;
    padding: 6px 10px;
    min-width: 36px;
}

/* Save Buttons */
.red-canvas-actions {
    display: flex;
    justify-content: center;
    margin-top: 10px;
    gap: 10px;
}

.red-save-btn {
    font-size: 0.85rem;
    padding: 6px 14px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.red-save-btn:hover {
    border-color: var(--color-primary);
}

/* Progress Bar */
.red-progress-container {
    margin-top: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.red-progress-track {
    flex: 1;
    height: 8px;
    background: var(--color-surface-deep);
    border-radius: 4px;
    overflow: hidden;
}

.red-progress-fill {
    width: 0%;
    height: 100%;
    background: var(--color-primary);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.red-progress-text {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    min-width: 40px;
    color: var(--color-primary);
    -webkit-text-fill-color: var(--color-primary);
}

.red-analysis-estimate {
    margin: 14px auto;
    max-width: 680px;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    background: rgba(0, 0, 0, 0.2);
    color: var(--color-text-muted);
    font-family: 'Courier New', monospace;
    font-size: 0.82rem;
    line-height: 1.45;
}

.red-analysis-estimate.is-over-limit {
    border-color: var(--color-primary);
    color: var(--color-primary);
    -webkit-text-fill-color: var(--color-primary);
}

/* Loading overlay inline progress bar */
.loading-progress-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 220px;
}

.loading-progress-track {
    flex: 1;
    height: 5px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 3px;
    overflow: hidden;
}

.loading-progress-fill {
    width: 0%;
    height: 100%;
    background: #eb3f7b;
    border-radius: 3px;
    transition: width 0.25s ease;
}

.loading-progress-wrap span {
    font-size: 0.82rem;
    color: #eb3f7b;
    font-family: 'Courier New', monospace;
    min-width: 36px;
    text-align: right;
}

/* Statistical Analysis */
.red-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 15px;
}

@media (max-width: 700px) {
    .red-stats-grid {
        grid-template-columns: 1fr;
    }
}

.red-stats-panel {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 15px;
    text-align: center;
}

.red-stats-output {
    text-align: left;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    padding: 10px;
    min-height: 150px;
}

.red-stats-output .stat-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-label { color: var(--color-text-muted); }
.stat-value { font-weight: bold; }
.stat-pass { color: #7bd389; -webkit-text-fill-color: #7bd389; }
.stat-fail { color: var(--color-primary); -webkit-text-fill-color: var(--color-primary); }
.stat-neutral { color: var(--color-primary); -webkit-text-fill-color: var(--color-primary); }

.red-channel-evidence + .red-channel-evidence {
    margin-top: 14px;
}

.red-channel-evidence h4 {
    margin: 0 0 4px;
    color: var(--color-text);
    font-size: 0.9rem;
    letter-spacing: 0;
    text-transform: none;
}

.red-evidence-caveat {
    margin: 16px 0 0;
    padding: 10px;
    border-left: 3px solid var(--color-primary);
    color: var(--color-text-muted);
    font-family: var(--font-primary);
    font-size: 0.8rem;
    line-height: 1.45;
}

/* Keyboard Shortcuts Section */
.red-shortcuts-section { max-width: 600px; margin: 20px auto; }

.red-shortcuts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 20px;
    text-align: left;
    font-size: 0.9rem;
}

@media (max-width: 500px) {
    .red-shortcuts-grid { grid-template-columns: 1fr; }
}

.red-shortcut {
    padding: 6px 0;
    color: var(--color-text-muted);
}

.red-shortcut kbd {
    display: inline-block;
    padding: 2px 8px;
    background: var(--color-surface-deep);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--color-text);
    margin-right: 6px;
    min-width: 28px;
    text-align: center;
}

/* Processing video — must remain off-screen; the WebGL canvas is the display element. */
#video {
    position: fixed;
    top: 0;
    left: 0;
    width: 320px;
    height: 180px;
    opacity: 1;
    visibility: hidden;
    pointer-events: none;
    max-width: none;
    margin: 0;
    border: none;
    background: transparent;
    border-radius: 0;
    z-index: -9999;
}

/* Canvas preview — height:auto lets it size to the content's natural aspect ratio */
.preview-media {
    width: 100%;
    height: auto;
    max-width: 100%;
    max-height: 80vh;
    border-radius: var(--radius-md);
    background: #333;
    object-fit: contain;
    border: 1px solid var(--color-border);
    cursor: crosshair;
    box-sizing: border-box;
}

.forensic-monitor {
    background: #050505;
    border: 1px solid #333;
    image-rendering: pixelated;
}

.red-roi-status {
    margin: -8px 15px 12px;
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

.red-roi-status.is-error {
    color: var(--color-primary);
    -webkit-text-fill-color: var(--color-primary);
}

/* Small timer shown under output preview canvas */
.output-timer {
    margin-top: 8px;
    color: var(--color-primary);
    font-family: monospace;
    font-size: 1rem;
    text-align: center;
}

/* Color & Contrast — inner div and label inline styles are blocked by CSP */
#colorContrast > div {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
}

#colorContrast label {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    box-sizing: border-box;
    margin: 0;
}

#colorContrast input[type="range"] {
    width: 100% !important;
    box-sizing: border-box;
    margin-top: 4px;
    display: block;
}

#colorContrast .slider-value {
    display: block;
    margin-top: 4px;
    text-align: right;
    align-self: flex-end;
}

/* Playback controls */
.preview-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
}

/* Scrubber row */
#videoScrubber {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    padding: 0 16px;
    box-sizing: border-box;
}

#scrubber {
    flex: 1;
    min-width: 0;
}

.preview-controls .playback-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0 8px;
    font-size: 1rem;
}

.preview-controls #playPauseBtn {
    font-size: 1.1rem;
    padding: 6px 10px;
}

.preview-controls .playback-label select {
    margin: 0;
}

/* Loading indicator */
.loading-box {
    text-align: center;
    color: #fff;
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
}

/* Signal panel */
.signal-panel {
    border: 1px solid var(--color-border);
    padding: 12px;
    margin-top: 20px;
    background: var(--color-surface);
    font-family: 'Courier New', monospace;
    border-radius: 6px;
    color: var(--color-text);
}

.signal-panel select,
.signal-panel input {
    margin: 6px 0;
    padding: 4px;
    background-color: #222;
    color: #fff;
    border: 1px solid #555;
}

#signalCanvas {
    margin-top: 12px;
    border: 1px solid #333;
    width: 100%;
    max-width: 600px;
    height: auto;
}

/* LSB output */
#lsbFilterPanel {
    margin-top: 16px;
}

#lsbOutputDisplay {
    white-space: pre-wrap;
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid #333;
    padding: 8px;
    background: var(--color-surface-deep);
    color: #eaeaea;
    font-family: 'Courier New', monospace;
    margin-top: 12px;
}

#copyLSBBtn {
    margin: 5px;
    padding: 10px 20px;
    font-size: 16px;
    color: var(--color-primary);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

#copyLSBBtn:hover {
    background-color: var(--color-surface-hover);
    border-color: var(--color-primary);
}

/* Inline-style replacements */

/* Logo image at top of page */
.red-logo {
    width: 150px;
    height: auto;
}

/* Section h2 with icon — flex row */
.h2-icon-row {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

/* LSB channel selector row */
.lsb-selector-row {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    flex-wrap: wrap;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    padding: 20px;
    border-radius: var(--radius-md);
}

/* Bit selector group */
.bit-selector-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    max-width: 300px;
    justify-content: center;
}

/* Frame timing controls row */
.frame-timing-row {
    margin-top: 15px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    text-align: center;
}

/* Analysis buttons row */
.analysis-btn-row {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}

/* Log output pre element */
.log-pre {
    max-height: 200px;
    overflow-y: auto;
    margin-top: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.3);
}

/* Results action row */
.results-btn-row {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 15px;
}

/* File signatures panel */
.file-signatures-panel {
    margin-top: 15px;
    padding: 10px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid #eb3f7b;
    border-radius: 5px;
}

.file-signatures-panel h4 {
    color: #eb3f7b;
    margin-top: 0;
}

/* Signal viewer controls row */
.signal-controls-row {
    display: flex;
    gap: 20px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
    background: rgba(255, 255, 255, 0.03);
    padding: 15px;
    border-radius: var(--radius-md);
}

.signal-control-pair {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Signal canvas overflow wrapper */
.signal-canvas-wrap {
    overflow: auto;
    max-width: 100%;
    border: 1px solid #333;
    background: var(--color-bg);
}

/* Histogram canvas */
.histogram-canvas {
    max-width: 400px;
    background: #111;
    border: 1px solid #333;
    border-radius: var(--radius-sm);
}

/* Histogram channel legend row */
.histogram-legend-row {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 8px;
    font-size: 0.85em;
}

.legend-swatch {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 2px;
    vertical-align: middle;
    margin-right: 4px;
}

.legend-swatch-red   { background: #ff4444; }
.legend-swatch-green { background: #44ff44; }
.legend-swatch-blue  { background: #4444ff; }

/* Frequency analysis controls row */
.freq-controls-row {
    display: flex;
    gap: 20px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 15px;
    background: rgba(255, 255, 255, 0.03);
    padding: 15px;
    border-radius: var(--radius-md);
}

.freq-toggle-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

/* Frequency canvas */
.freq-canvas {
    margin-top: 15px;
    width: 100%;
    max-width: 800px;
    height: 256px;
    background: var(--color-bg);
    border: 1px solid #333;
}

/* Scan result panel */
.scan-result-panel {
    margin-top: 30px;
    text-align: center;
    border: 2px solid #eb3f7b;
    background: rgba(235, 63, 123, 0.05);
}

.scan-result-btn {
    padding: 15px 40px;
    font-size: 1.2rem;
    background: linear-gradient(135deg, #eb3f7b 0%, #ff7eb3 100%);
    margin-top: 10px;
}

/* Analysis results pre */
.analysis-results-pre {
    color: var(--color-text-muted);
    font-style: italic;
}

@media (max-width: 700px) {
    video,
    canvas {
        width: 98%;
        max-width: 98vw;
    }

    .preview-media {
        height: auto;
    }
}