.topic-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;display:grid}.topic-grid>.empty-state{grid-column:1/-1}.topic-summary{border-radius:14px;height:224px;transition:border-color .15s,box-shadow .15s;position:relative}.topic-summary:hover{border-color:var(--accent);box-shadow:0 8px 24px #32205b12}.topic-open{text-align:left;flex-direction:column;width:100%;height:160px;padding:22px 22px 12px;display:flex}.topic-card-icon{background:var(--tint);width:40px;height:40px;color:var(--accent);border-radius:10px;place-items:center;display:grid}.topic-card-label{color:var(--muted);letter-spacing:.8px;margin-top:15px;font-size:10px}.topic-card-title{overflow-wrap:anywhere;-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-top:7px;font-size:18px;font-weight:600;line-height:1.4;display:-webkit-box;overflow:hidden}.topic-card-actions{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:8px;height:64px;padding:10px 16px 12px;display:flex}.topic-preview-link{color:var(--accent);align-items:center;gap:6px;min-height:42px;font-size:12px;display:inline-flex}.topic-copy{flex-shrink:0}.topic-summary.has-copy-error{height:auto;min-height:224px}.topic-copy-error{color:var(--danger);overflow-wrap:anywhere;padding:0 16px 14px;font-size:12px;line-height:1.6}.topic-summary>.topic-delete{position:absolute;top:12px;right:12px}.topic-summary>.topic-hide{position:absolute;top:12px;right:56px}.hidden-topics{border:1px solid var(--border);background:var(--surface);border-radius:12px}.hidden-topics summary{cursor:pointer;min-height:52px;color:var(--muted);align-items:center;gap:9px;padding:16px 20px;font-size:14px;display:flex}.hidden-topics summary:after{content:"+";margin-left:auto;font-size:20px}.hidden-topics[open] summary:after{content:"−"}.hidden-topic-list{padding:0 20px 12px}.hidden-topic-row{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:16px;padding:12px 0;font-size:14px;display:flex}.hidden-topic-row .btn{flex-shrink:0}.dialog.topic-dialog{width:min(1800px,100vw - 64px);max-width:none;min-height:min(780px,85dvh);max-height:92dvh;padding:28px}.topic-dialog .topic-header{flex-direction:row;align-items:center}.topic-dialog .topic-preview{min-height:480px;padding:32px}.topic-dialog .code-editor{min-height:480px}@media (max-width:1400px){.topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (max-width:1100px){.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:800px){.topic-grid{grid-template-columns:minmax(0,1fr)}}@media (max-width:640px){.dialog.topic-dialog{width:calc(100vw - 24px);min-height:85dvh;padding:18px}.topic-dialog .topic-preview{min-height:360px;padding:18px}.topic-dialog .code-editor{min-height:360px}}