.history-layout{justify-content:center;align-items:flex-start;gap:40px;max-width:1400px;margin:0 auto;padding:40px 24px;display:flex}.history-layout .topic-sidebar{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-md);flex:0 0 240px;padding:24px;position:sticky;top:100px}.history-content{flex:1;min-width:0;max-width:900px}.history-header{border-bottom:1px solid var(--surface-border);justify-content:space-between;align-items:flex-end;margin-bottom:40px;padding-bottom:32px;display:flex}.topic-title{font-family:var(--font-serif);color:var(--color-ink);margin-bottom:8px;font-size:2.2rem;font-weight:800}.history-subtitle{font-family:var(--font-sans);color:var(--text-muted);font-size:.95rem;font-weight:500}.history-actions{flex-direction:column;align-items:flex-end;gap:12px;display:flex}.compare-hint{color:var(--color-gold);text-transform:uppercase;letter-spacing:.05em;font-size:.75rem;font-weight:600}.revisions-list{background:var(--surface-border);border:1px solid var(--surface-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);flex-direction:column;gap:1px;display:flex;overflow:hidden}.revision-card{transition:background var(--transition);background:#fff;align-items:stretch;gap:32px;padding:24px 32px;display:flex}.revision-card:hover{background:#fdfdfc}.rev-selectors{border-right:1px solid var(--surface-border);flex-direction:column;justify-content:center;gap:12px;padding-right:24px;display:flex}.rev-selectors label{text-transform:uppercase;color:var(--text-muted);cursor:pointer;align-items:center;gap:8px;font-size:.7rem;font-weight:800;display:flex}.rev-selectors input{cursor:pointer;accent-color:var(--color-ink)}.rev-details{flex:1}.rev-meta{margin-bottom:8px}.timestamp{font-family:var(--font-sans);color:var(--text-muted);letter-spacing:.02em;font-size:.8rem;font-weight:600}.rev-summary{font-family:var(--font-serif);color:var(--color-ink);margin-bottom:16px;font-size:1.2rem;font-weight:700;line-height:1.3}.rev-author{align-items:center;gap:12px;display:flex}.author-avatar{background:var(--color-gold-soft);width:36px;height:36px;color:var(--color-gold);border:1px solid #c5a05933;border-radius:10px;justify-content:center;align-items:center;font-size:.85rem;font-weight:800;display:flex}.author-name{color:var(--color-ink);font-size:.9rem;font-weight:700}.author-role{text-transform:uppercase;letter-spacing:.05em;color:var(--color-gold);font-size:.7rem;font-weight:800}.rev-actions{flex-direction:column;justify-content:center;display:flex}@media (max-width:900px){.history-layout{flex-direction:column;align-items:stretch;padding:16px}.history-header{flex-direction:column;align-items:flex-start;gap:24px}.history-actions{align-items:flex-start;width:100%}.btn-primary{width:100%}.revision-card{flex-direction:column;gap:20px;padding:24px}.rev-selectors{border-right:none;border-bottom:1px solid var(--surface-border);flex-direction:row;justify-content:flex-start;padding:0 0 16px}}