.analytics{display:grid;grid-template-columns:320px 1fr;height:100vh;overflow:hidden;background:var(--bg)}.analytics-header{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:12px 20px;border-bottom:1px solid var(--border);background:var(--bg-card)}.analytics-header h2{font-family:IBM Plex Sans,sans-serif;font-size:14px;font-weight:600;color:var(--text);text-align:center}.analytics-header>:last-child{justify-self:end}.analytics-header .back-link{font-size:13px;color:var(--text-tertiary);text-decoration:none;transition:color .2s}.analytics-header .back-link:hover{color:var(--text)}.session-list{border-right:1px solid var(--border);overflow-y:auto;background:var(--bg-card);display:flex;flex-direction:column}.session-list-header{padding:16px 16px 12px;border-bottom:1px solid var(--border)}.session-list-header h3{font-family:IBM Plex Sans,sans-serif;font-size:12px;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}.session-filters{display:flex;flex-direction:column;gap:6px}.session-filter-select{width:100%;background:hsla(0,0%,100%,.05);border:1px solid var(--border);border-radius:6px;font-size:12px;color:var(--text-secondary);font-family:IBM Plex Sans,sans-serif;outline:none;cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='rgba(255,255,255,0.35)' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding:6px 28px 6px 10px}.session-filter-select:focus{border-color:var(--red)}.session-filter-select option{background:var(--bg-card);color:var(--text)}.session-list-items{flex:1 1;overflow-y:auto;padding:8px}.session-list-item{display:flex;flex-direction:column;gap:4px;padding:10px 12px;border-radius:6px;cursor:pointer;transition:background .15s,border-color .15s;margin-bottom:2px;border:1px solid transparent}.session-list-item:hover{background:hsla(0,0%,100%,.03)}.session-list-item.active{background:rgba(255,38,38,.1);border-color:rgba(255,38,38,.2)}.session-item-presenter{font-size:13px;font-weight:600;color:var(--text)}.session-item-deck{font-size:12px;color:var(--text-secondary)}.session-item-meta{display:flex;gap:12px;font-size:11px;color:var(--text-tertiary)}.analytics-detail-panel{display:flex;flex-direction:column;overflow:hidden}.analytics-detail-content{flex:1 1;overflow-y:auto;padding:24px 32px}.analytics-empty{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-tertiary);font-size:14px}.session-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));grid-gap:16px;gap:16px;margin-bottom:32px}.summary-stat{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:16px}.summary-stat-label{font-size:11px;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}.summary-stat-value{font-size:20px;font-weight:700;color:var(--text);font-family:IBM Plex Sans,sans-serif}.dwell-chart{margin-bottom:32px}.dwell-chart-title{font-size:12px;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px}.dwell-chart-bars{display:flex;flex-direction:column;gap:6px}.dwell-bar-row{display:grid;grid-template-columns:70px 1fr 60px;align-items:center;grid-gap:10px;gap:10px;cursor:pointer;padding:2px 0;border-radius:4px;transition:background .15s}.dwell-bar-row:hover{background:hsla(0,0%,100%,.02)}.dwell-bar-row.active{background:rgba(255,38,38,.08)}.dwell-bar-label{font-size:12px;color:var(--text-secondary);text-align:right;white-space:nowrap}.dwell-bar-track{height:20px;background:hsla(0,0%,100%,.04);border-radius:4px;overflow:hidden}.dwell-bar-fill{height:100%;background:var(--red);border-radius:4px;min-width:2px;transition:width .3s ease}.dwell-bar-time{font-size:11px;color:var(--text-tertiary);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.heatmap-section{margin-bottom:32px}.heatmap-title{font-size:12px;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px}.heatmap-container{position:relative;width:100%;max-width:800px;aspect-ratio:16/9;background:#000;border-radius:8px;border:1px solid var(--border);overflow:hidden}.heatmap-container img{width:100%;height:100%;object-fit:contain}.heatmap-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.heatmap-no-data{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--text-tertiary);font-size:13px}.analytics-actions{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--border);background:var(--bg-card);flex-wrap:wrap}.analytics-actions .btn{font-size:12px;padding:7px 14px}.btn-danger{background:transparent;color:var(--red-soft);border:1px solid rgba(255,38,38,.2)}.btn-danger:hover{background:rgba(255,38,38,.1);border-color:rgba(255,38,38,.3)}.session-detail-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.session-detail-title{font-family:IBM Plex Sans,sans-serif;font-size:16px;font-weight:600;color:var(--text)}.session-detail-subtitle{font-size:13px;color:var(--text-tertiary);margin-top:2px}.session-detail-actions{display:flex;gap:8px}