/* Base Variables */
:root {
    --bg-color: #0a0a0f;
    --bg-element: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    
    --accent-cyan: hsl(200, 80%, 50%);
    --accent-amber: hsl(38, 90%, 55%);
    --color-success: hsl(145, 65%, 45%);
    --color-danger: hsl(0, 80%, 65%);
    
    --font-ui: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-ui);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    height: 100vh;
    overflow: hidden; /* App feels like a desktop app */
}

/* Layout */
#app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    padding: 16px;
    gap: 16px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
}

header h1 {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

main {
    display: flex;
    flex: 1;
    gap: 16px;
    min-height: 0; /* Important for scrollable children */
}

/* Glass Panels */
.glass-panel {
    background: var(--bg-element);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

/* Buttons */
.btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-family: var(--font-ui);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    outline: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--accent-cyan);
    color: #000;
}

.btn-primary:hover:not(:disabled) {
    background: hsl(200, 80%, 60%);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.15);
}

.btn-sm {
    padding: 4px 10px;
    font-size: 0.8rem;
}

/* Viewer Section */
#viewer-section {
    flex: 2;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

#viewer-toolbar {
    display: flex;
    gap: 8px;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.2);
    align-items: center;
}

#viewer-status {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.icon-btn {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

#viewer-container {
    flex: 1;
    position: relative;
    background: #000;
    overflow: hidden; /* JS will handle panning */
    cursor: grab;
}

#viewer-container:active {
    cursor: grabbing;
}

#sourceCanvas, #overlayCanvas {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transform-origin: center center;
    pointer-events: none; /* Let the container handle mouse events for pan */
}

#sourceCanvas {
    z-index: 1;
}

#overlayCanvas {
    z-index: 2;
}

#upload-prompt {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    z-index: 10;
    background: var(--bg-color);
    pointer-events: none;
}

/* Analysis Section */
#analysis-section {
    flex: 1;
    min-width: 400px;
    display: flex;
    flex-direction: column;
}

#tabs-nav {
    display: flex;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px 12px 0 0;
}

.tab-btn {
    flex: 1 1 33.333%;
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 12px 8px;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    font-weight: 500;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
    background: rgba(255, 255, 255, 0.05);
}

#tab-contents {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-pane.active {
    display: block;
}

h2 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

h3 {
    font-size: 0.95rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 500;
}

/* Data UI Elements */
.data-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.data-group label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.data-value {
    font-size: 0.9rem;
    color: var(--text-primary);
}

.mono {
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.hash-box {
    margin-top: 8px;
    padding: 8px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    word-break: break-all;
    border: 1px solid var(--border-color);
}

.data-group.form-group {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

.form-control {
    width: 100%;
    padding: 10px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 6px;
    font-family: var(--font-ui);
}

/* Evidence Blocks & Tables */
.evidence-block {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 16px;
}

.description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th, .data-table td {
    padding: 8px;
    text-align: left;
    font-size: 0.85rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.data-table th {
    color: var(--text-secondary);
    font-weight: 500;
}

.data-table td.mono {
    color: var(--accent-amber);
}

/* Badges and Warnings */
.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-badge.neutral { background: rgba(255, 255, 255, 0.1); }
.status-badge.success { background: rgba(46, 204, 113, 0.2); color: var(--color-success); border: 1px solid var(--color-success); }
.status-badge.warning { background: rgba(241, 196, 15, 0.2); color: var(--accent-amber); border: 1px solid var(--accent-amber); }
.status-badge.danger { background: rgba(231, 76, 60, 0.2); color: var(--color-danger); border: 1px solid var(--color-danger); }

.warning-text {
    color: var(--color-danger);
    font-size: 0.85rem;
    margin-top: 8px;
    font-weight: 500;
}

.trace-list {
    list-style: none;
    font-size: 0.85rem;
}

.trace-list li {
    padding: 6px 0;
    color: var(--text-primary);
}

.trace-list li.empty-state {
    color: var(--text-secondary);
    font-style: italic;
}

/* Footer Summary Bar */
#summary-bar {
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.scores {
    display: flex;
    gap: 16px;
}

.score-badge {
    background: rgba(0, 0, 0, 0.3);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.score-badge .val {
    color: var(--text-primary);
    font-weight: 600;
    font-family: var(--font-mono);
}

.final-verdict {
    font-size: 1rem;
    font-weight: 600;
}

.status-inconclusive { color: var(--text-secondary); }
.status-authentic { color: var(--color-success); }
.status-synthetic { color: var(--accent-amber); }
.status-manipulated { color: var(--color-danger); }

/* Helpers */
.hidden { display: none !important; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Loader */
#global-loader {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255,255,255,0.1);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

@keyframes spin { 100% { transform: rotate(360deg); } }

/* Commentary Boxes */
.commentary-box {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    margin-top: 12px;
}

.comment-item {
    margin-bottom: 8px;
    font-size: 0.85rem;
    line-height: 1.6;
}

.comment-item:last-child { margin-bottom: 0; }

.comment-item strong {
    color: var(--accent-cyan);
    margin-right: 4px;
}

.comment-item .text {
    color: var(--text-secondary);
}

/* Auto Analysis Gallery Cards */
.auto-result-card {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.auto-result-card:hover {
    border-color: var(--accent-cyan);
    background: rgba(0, 0, 0, 0.4);
}

.auto-result-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 0.85rem;
}

.auto-result-card .card-header strong {
    color: var(--text-primary);
}

.auto-thumb {
    width: 100%;
    height: auto;
    border-radius: 4px;
    background: #000;
    display: block;
}

.auto-summary {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-top: 6px;
    line-height: 1.4;
}

.auto-badge {
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

.auto-badge.running {
    background: rgba(59, 130, 246, 0.2);
    color: hsl(217, 91%, 60%);
    animation: pulse 1s infinite;
}

.auto-badge.done {
    background: rgba(46, 204, 113, 0.2);
    color: var(--color-success);
}

.auto-badge.warn {
    background: rgba(241, 196, 15, 0.2);
    color: var(--accent-amber);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Checklist */
.checklist {
    list-style: none;
}

.checklist li {
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.checklist label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.checklist input[type="checkbox"] {
    margin-top: 3px;
    accent-color: var(--accent-cyan);
}