frontend_v2/styles.css

/* Alpha Signal Analysis — Trading Terminal Theme */

:root {
    --bg-primary: #0c0c0c;
    --bg-secondary: #121212;
    --bg-card: #1a1a1a;
    --bg-input: #0e0e0e;
    --border: #2a2a2a;
    --border-active: #00ff88;
    --text-primary: #d4d4d4;
    --text-secondary: #808080;
    --text-muted: #555555;
    --accent-green: #00ff88;
    --accent-red: #ff4444;
    --accent-blue: #00aaff;
    --accent-yellow: #ffcc00;
    --accent-purple: #aa66ff;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Consolas', monospace;
    --font-sans: var(--font-mono);
    --radius: 2px;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: var(--font-mono);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-size: 13px;
    line-height: 1.5;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    font-size: 20px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--accent-green);
    border-radius: var(--radius);
    color: var(--accent-green);
}

.header h1 {
    font-size: 15px;
    font-weight: 400;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--accent-green);
}

.badge {
    font-size: 10px;
    padding: 2px 6px;
    background: transparent;
    border: 1px solid var(--text-muted);
    border-radius: var(--radius);
    font-weight: 400;
    color: var(--text-muted);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

/* Tab Navigation */
.tab-nav {
    display: flex;
    gap: 0;
    padding: 0 24px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.tab-btn {
    padding: 10px 16px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 400;
    cursor: pointer;
    border-bottom: 1px solid transparent;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--accent-green);
    border-bottom-color: var(--accent-green);
}

/* Content */
.content {
    flex: 1;
    padding: 24px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.tab-panel {
    display: none;
}

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

.panel-header {
    margin-bottom: 24px;
}

.panel-header h2 {
    font-size: 16px;
    font-weight: 400;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-green);
}

.panel-desc {
    color: var(--text-muted);
    font-size: 12px;
}

/* Controls */
.control-row {
    display: flex;
    gap: 16px;
    align-items: end;
    margin-bottom: 16px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.control-group label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.flex-grow { flex: 1; }

select, textarea, input[type="text"] {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 10px 12px;
    border-radius: var(--radius);
    font-size: 14px;
    font-family: var(--font-sans);
    transition: border-color 0.2s;
}

select:focus, textarea:focus, input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

textarea {
    width: 100%;
    min-height: 120px;
    resize: vertical;
    margin-bottom: 12px;
}

/* Toggle */
.toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    cursor: pointer;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--border);
    border-radius: 12px;
    transition: 0.3s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 3px;
    bottom: 3px;
    background: var(--text-primary);
    border-radius: 50%;
    transition: 0.3s;
}

.toggle input:checked + .toggle-slider {
    background: var(--accent-blue);
}

.toggle input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

/* Buttons */
.btn-primary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: transparent;
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
    font-size: 13px;
    font-weight: 400;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    font-family: var(--font-mono);
}

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

.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-icon { font-size: 16px; }

/* Results */
.results-panel {
    margin-top: 24px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.results-header {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 12px;
}

.latency-badge {
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 4px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--accent-green);
}

.hidden { display: none; }

/* Signal meta cards */
.signal-meta {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin: 16px 0;
}

.meta-card {
    padding: 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.meta-card label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.meta-card span {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Expandable sections */
.expandable {
    margin-top: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.expand-btn {
    width: 100%;
    padding: 10px 16px;
    background: var(--bg-input);
    border: none;
    color: var(--text-secondary);
    font-size: 13px;
    text-align: left;
    cursor: pointer;
    transition: background 0.2s;
}

.expand-btn:hover { background: var(--bg-card); }

.expand-content {
    padding: 16px;
    display: none;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.expand-content.open { display: block; }

.expand-content.code {
    font-family: var(--font-mono);
    font-size: 12px;
    white-space: pre-wrap;
    background: var(--bg-primary);
}

/* Charts */
.chart-container {
    width: 100%;
    min-height: 300px;
    margin: 12px 0;
}

.chart-section {
    margin-bottom: 32px;
}

.chart-section h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Info button */
.info-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    font-size: 12px;
    background: var(--border);
    border-radius: 50%;
    color: var(--text-muted);
    cursor: help;
}

/* Evaluation */
.eval-controls {
    margin-bottom: 20px;
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 8px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    transition: border-color 0.2s;
}

.checkbox-group label:has(input:checked) {
    border-color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.1);
}

.checkbox-group input[type="checkbox"] {
    accent-color: var(--accent-blue);
}

.eval-metrics-summary {
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 24px;
    font-size: 14px;
    color: var(--text-secondary);
}

/* Table */
.table-container {
    overflow-x: auto;
}

.table-container table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.table-container th, .table-container td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table-container th {
    background: var(--bg-input);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.5px;
}

.table-container td {
    font-family: var(--font-mono);
}

.table-container td.positive { color: var(--accent-green); }
.table-container td.negative { color: var(--accent-red); }
.table-container td.significant { font-weight: 700; }

/* Sector */
.sector-clusters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
    margin: 24px 0;
}

.cluster-card {
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.cluster-card h4 {
    font-size: 14px;
    margin-bottom: 8px;
    color: var(--accent-blue);
}

.cluster-card .ticker-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.ticker-tag {
    padding: 4px 8px;
    background: var(--bg-input);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
}

/* Limitations */
.limitations {
    margin-top: 32px;
    padding: 16px;
    background: rgba(239, 68, 68, 0.05);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius);
}

.limitations h4 {
    font-size: 14px;
    color: var(--accent-red);
    margin-bottom: 8px;
}

.limitations ul {
    padding-left: 20px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Model details grid */
.model-details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.model-detail-card {
    padding: 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.model-detail-card h4 {
    font-size: 13px;
    color: var(--accent-blue);
    margin-bottom: 8px;
}

/* Article info */
.article-info {
    padding: 12px 16px;
    background: var(--bg-input);
    border-left: 3px solid var(--accent-blue);
    border-radius: 0 var(--radius) var(--radius) 0;
    margin-bottom: 20px;
    font-size: 14px;
}

.article-info .title { font-weight: 600; }
.article-info .meta { color: var(--text-muted); font-size: 12px; margin-top: 4px; }

/* Footer */
.footer {
    display: flex;
    justify-content: space-between;
    padding: 12px 24px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    .signal-meta { grid-template-columns: repeat(2, 1fr); }
    .control-row { flex-direction: column; }
    .header h1 { font-size: 14px; }
    .tab-btn { font-size: 12px; padding: 10px 12px; }
}

/* Loading spinner */
.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Evaluation context cards */
.eval-context {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.context-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
}

.context-card h4 {
    color: var(--accent-green);
    font-size: 11px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.context-card p {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.6;
}

.context-card strong {
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .eval-context {
        grid-template-columns: 1fr;
    }
}

/* Product overview card */
.product-overview {
    margin-bottom: 24px;
}

.overview-card {
    background: var(--bg-card);
    border: 1px solid var(--accent-green);
    border-radius: var(--radius);
    padding: 20px 24px;
}

.overview-card h3 {
    color: var(--accent-green);
    font-size: 14px;
    font-weight: 400;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.overview-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 10px;
}

.overview-card p:last-child {
    margin-bottom: 0;
    color: var(--text-muted);
    font-size: 13px;
}

.overview-card strong {
    color: var(--text-primary);
}

/* Welcome overlay / splash screen */
.welcome-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.97);
    z-index: 10000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.3s ease;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.welcome-overlay.hidden {
    display: none;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.welcome-modal {
    max-width: 680px;
    width: 90%;
    text-align: center;
    padding: 48px 40px;
    margin: 40px auto;
}

.welcome-top {
    margin-bottom: 24px;
}

.welcome-logo {
    font-size: 36px;
    margin-bottom: 16px;
    filter: drop-shadow(0 0 12px rgba(0, 255, 136, 0.4));
    color: var(--accent-green);
}

.welcome-title {
    font-size: 24px;
    font-weight: 400;
    color: var(--accent-green);
    margin-bottom: 8px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.welcome-tagline {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.welcome-body {
    text-align: left;
    margin-bottom: 32px;
}

.welcome-lead {
    font-size: 16px;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 24px;
    font-weight: 500;
}

.welcome-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.welcome-stat {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 8px;
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 16px;
    font-weight: 400;
    color: var(--accent-green);
    font-family: var(--font-mono);
}

.stat-label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.welcome-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.welcome-context {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0;
}

.welcome-context a {
    color: var(--accent-blue);
    text-decoration: underline;
}

.welcome-cta {
    display: inline-block;
    background: transparent;
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
    padding: 12px 32px;
    font-size: 14px;
    font-weight: 400;
    font-family: var(--font-mono);
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.welcome-cta:hover {
    background: var(--accent-green);
    color: #000;
}

.welcome-cta:active {
    transform: scale(0.98);
}

.welcome-footer {
    font-size: 12px;
    color: var(--text-muted);
}

@media (max-width: 600px) {
    .welcome-modal {
        padding: 32px 24px;
    }
    .welcome-title {
        font-size: 24px;
    }
    .welcome-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .welcome-cta {
        padding: 14px 24px;
        font-size: 14px;
    }
}

/* Live feed styles */
.feed-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 24px;
    margin-bottom: 12px;
    padding: 0 4px;
}

.feed-header h3 {
    font-size: 16px;
    color: var(--text-primary);
}

.feed-count {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 400;
    margin-left: 8px;
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 6px 14px;
    font-size: 12px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}

.btn-secondary:hover {
    border-color: var(--text-secondary);
    color: var(--text-secondary);
}

.live-feed {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feed-empty {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-muted);
    font-size: 14px;
    border: 1px dashed var(--border);
    border-radius: var(--radius);
}

.feed-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    animation: slideIn 0.2s ease;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.feed-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.feed-card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
}

.feed-model-badge {
    background: transparent;
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
    padding: 2px 8px;
    border-radius: var(--radius);
    font-size: 10px;
    font-weight: 400;
}

.feed-source-badge {
    background: var(--bg-input);
    color: var(--text-secondary);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    border: 1px solid var(--border);
}

.feed-time {
    font-size: 11px;
    color: var(--text-muted);
}

.feed-status {
    font-size: 12px;
    font-weight: 600;
}

.loading-status {
    color: var(--accent-yellow);
}

.success-status {
    color: var(--accent-green);
}

.error-status {
    color: var(--accent-red);
}

.feed-card-preview {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.4;
    margin-bottom: 12px;
    padding: 8px 12px;
    background: var(--bg-input);
    border-radius: 4px;
    border-left: 3px solid var(--border);
}

.feed-card-body {
    min-height: 0;
}

.feed-signal-chart {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 12px;
}

.feed-signal-row {
    display: grid;
    grid-template-columns: 50px 1fr 55px;
    align-items: center;
    gap: 8px;
    height: 22px;
}

.feed-ticker {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.feed-bar-container {
    height: 14px;
    background: var(--bg-input);
    border-radius: 3px;
    overflow: hidden;
    display: flex;
}

.feed-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.feed-score {
    font-size: 11px;
    font-family: var(--font-mono);
    font-weight: 600;
    text-align: right;
}

.feed-meta-line {
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 8px;
    padding: 6px 0;
    border-top: 1px solid var(--border);
}

.feed-translation {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 8px;
}

.feed-details {
    margin-top: 8px;
}

.feed-details summary {
    font-size: 12px;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 0;
}

.feed-details summary:hover {
    color: var(--text-secondary);
}

.feed-json {
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    background: var(--bg-input);
    padding: 12px;
    border-radius: 4px;
    overflow-x: auto;
    max-height: 300px;
    overflow-y: auto;
    margin-top: 4px;
    white-space: pre-wrap;
    word-break: break-word;
}

.feed-error {
    color: var(--accent-red);
    font-size: 13px;
    padding: 8px 12px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 4px;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ============================================================
   MOBILE RESPONSIVE OVERRIDES
   ============================================================ */

@media (max-width: 768px) {
    /* Header */
    .header {
        padding: 10px 12px;
    }
    .header-left {
        gap: 8px;
    }
    .logo {
        width: 32px;
        height: 32px;
        font-size: 18px;
    }
    .header h1 {
        font-size: 14px;
    }
    .badge {
        display: none;
    }
    .header-right .status-text {
        display: none;
    }

    /* Tab navigation - scrollable */
    .tab-nav {
        padding: 0 8px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .tab-nav::-webkit-scrollbar {
        display: none;
    }
    .tab-btn {
        font-size: 12px;
        padding: 10px 12px;
        white-space: nowrap;
        flex-shrink: 0;
    }

    /* Content */
    .content {
        padding: 16px 12px;
    }
    .panel-header h2 {
        font-size: 18px;
    }
    .panel-desc {
        font-size: 13px;
    }

    /* Product overview */
    .overview-card {
        padding: 16px;
    }
    .overview-card h3 {
        font-size: 16px;
    }
    .overview-card p {
        font-size: 13px;
    }

    /* Eval context cards */
    .eval-context {
        grid-template-columns: 1fr;
    }

    /* Eval controls - wrap checkboxes */
    .checkbox-group {
        flex-wrap: wrap;
    }
    .checkbox-group label {
        font-size: 11px;
    }

    /* Charts */
    .chart-container {
        overflow-x: auto;
    }

    /* Tables */
    .table-container {
        overflow-x: auto;
    }
    table {
        font-size: 11px;
    }
    table th, table td {
        padding: 6px 8px;
    }

    /* Live feed */
    .feed-card {
        padding: 12px 14px;
    }
    .feed-card-meta {
        flex-wrap: wrap;
        gap: 4px;
    }
    .feed-signal-row {
        grid-template-columns: 42px 1fr 48px;
    }
    .feed-ticker {
        font-size: 10px;
    }
    .feed-score {
        font-size: 10px;
    }

    /* Historical controls */
    .historical-controls select {
        font-size: 12px;
    }

    /* Sector clusters */
    .sector-clusters {
        grid-template-columns: 1fr 1fr !important;
    }

    /* Footer */
    .footer {
        flex-direction: column;
        gap: 4px;
        padding: 12px;
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    /* Extra small screens */
    .welcome-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .welcome-title {
        font-size: 22px;
    }
    .welcome-tagline {
        font-size: 12px;
        letter-spacing: 1px;
    }
    .welcome-cta {
        padding: 14px 20px;
        font-size: 14px;
        width: 100%;
    }
    .welcome-modal {
        padding: 28px 16px;
    }

    .tab-btn {
        font-size: 11px;
        padding: 8px 10px;
    }

    .content {
        padding: 12px 8px;
    }

    .control-row {
        gap: 10px;
    }

    .feed-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .eval-charts {
        gap: 16px;
    }
}

/* Panel header with button */
.panel-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.btn-info {
    background: transparent;
    border: 1px solid var(--text-muted);
    color: var(--text-muted);
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 400;
    font-family: var(--font-mono);
    border-radius: var(--radius);
    cursor: pointer;
    white-space: nowrap;
    transition: border-color 0.15s, color 0.15s;
    flex-shrink: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

@media (max-width: 480px) {
    .panel-header-row {
        flex-direction: column;
    }
}

/* ============================================================
   MOBILE FIXES: Live Signal Debugging + Historical Prediction Analysis
   ============================================================ */

@media (max-width: 768px) {
    /* Live tab: textarea and button full width */
    .live-controls textarea {
        min-height: 100px;
        font-size: 13px;
    }
    .live-controls .btn-primary {
        width: 100%;
        justify-content: center;
    }
    .live-controls .control-row {
        flex-direction: column;
        gap: 12px;
    }
    .live-controls .control-group {
        width: 100%;
    }
    .live-controls select {
        width: 100%;
    }

    /* Feed cards: tighter on mobile */
    .feed-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
    .feed-card-preview {
        font-size: 11px;
        padding: 6px 10px;
    }
    .feed-translation {
        font-size: 12px;
    }
    .feed-json {
        font-size: 10px;
        max-height: 200px;
    }

    /* Historical tab: event select full width, text wrapping */
    .historical-controls select {
        width: 100%;
        font-size: 12px;
        white-space: normal;
        word-wrap: break-word;
    }

    /* Historical results panel */
    #hist-results {
        padding: 12px;
    }
    #hist-results h3 {
        font-size: 14px;
        flex-wrap: wrap;
    }

    /* Article info block */
    .article-info {
        font-size: 12px;
        padding: 10px 12px;
    }
    .article-info .title {
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    /* Chart containers: allow horizontal scroll, reduce min-height */
    .chart-container {
        min-height: 250px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Model details grid: single column on mobile */
    .model-details-grid {
        grid-template-columns: 1fr;
    }
    .model-detail-card {
        padding: 12px;
    }
    .model-detail-card h4 {
        font-size: 12px;
    }
    .model-detail-card p {
        font-size: 11px;
    }

    /* Historical checkbox group: smaller pills */
    .historical-controls .checkbox-group {
        gap: 6px;
    }
    .historical-controls .checkbox-group label {
        padding: 6px 10px;
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    /* Extra small: stack everything aggressively */
    .feed-signal-row {
        grid-template-columns: 36px 1fr 42px;
        height: 20px;
    }
    .feed-bar-container {
        height: 12px;
    }

    /* Historical: even tighter */
    #hist-results {
        padding: 8px;
    }
    .chart-container {
        min-height: 220px;
    }

    /* Model filter checkboxes wrap tighter */
    .checkbox-group label {
        padding: 5px 8px;
        font-size: 10px;
    }
}

/* No signal indicator */
.feed-no-signal {
    color: var(--accent-yellow);
    font-size: 12px;
    padding: 8px 12px;
    background: rgba(255, 204, 0, 0.08);
    border: 1px solid rgba(255, 204, 0, 0.2);
    border-radius: var(--radius);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}