.shist{display:flex;flex-direction:column;gap:1.25rem}.shist-empty{background:var(--dash-surface-solid);border:1px dashed var(--dash-border);border-radius:18px;padding:3rem 1.5rem;text-align:center}.shist-empty h2{font-family:var(--font-heading,"Montserrat"),sans-serif;font-size:1.25rem;font-weight:800;color:var(--dash-text);margin:0 0 .5rem}.shist-empty p{font-size:.9375rem;color:var(--dash-text-muted);margin:0}.shist-hero{position:relative;overflow:hidden;border-radius:22px;background:linear-gradient(135deg,#4c1d95,#7c3aed 50%,#ea580c 110%);border:1px solid rgba(167,139,250,.32);box-shadow:0 12px 36px color-mix(in srgb,#6d28d9 30%,transparent),inset 0 1px 0 rgba(255,255,255,.12);color:#ffffff}.shist-hero-glow{position:absolute;border-radius:50%;filter:blur(50px);pointer-events:none}.shist-hero-glow-1{top:-60px;right:-60px;width:200px;height:200px;background:rgba(167,139,250,.32)}.shist-hero-glow-2{bottom:-30px;left:-30px;width:140px;height:140px;background:rgba(249,115,22,.22)}.shist-hero-body{position:relative;z-index:1;padding:1.75rem 2rem}.shist-hero-eyebrow{font-size:.7rem;font-weight:800;text-transform:uppercase;letter-spacing:.12em;color:rgba(255,255,255,.65);margin:0}.shist-hero-title{font-family:var(--font-heading,"Montserrat"),sans-serif;font-size:1.5rem;font-weight:800;color:#ffffff;margin:.25rem 0 .5rem;letter-spacing:-.02em}.shist-hero-sub{font-size:.875rem;color:rgba(255,255,255,.78);margin:0 0 1.25rem}.shist-hero-sub strong{color:#ffffff;font-weight:800}.shist-hero-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.75rem}.shist-stat{display:flex;align-items:center;gap:.625rem;padding:.75rem .875rem;border-radius:12px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18)}.shist-stat-icon{width:32px;height:32px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;background:rgba(255,255,255,.16);color:#ffffff}.shist-stat[data-tone=info] .shist-stat-icon{background:linear-gradient(135deg,#38bdf8,#0284c7)}.shist-stat[data-tone=purple] .shist-stat-icon{background:linear-gradient(135deg,#a78bfa,#7c3aed)}.shist-stat[data-tone=success] .shist-stat-icon{background:linear-gradient(135deg,#34d399,#10b981)}.shist-stat[data-tone=accent] .shist-stat-icon{background:linear-gradient(135deg,#fb923c,#ea580c)}.shist-stat-value{font-family:var(--font-heading,"Montserrat"),sans-serif;font-size:1.0625rem;font-weight:800;color:#ffffff;line-height:1}.shist-stat-label{font-size:.7rem;font-weight:700;color:rgba(255,255,255,.7);text-transform:uppercase;letter-spacing:.08em;margin-top:2px}.shist-toggle-row{display:flex}.shist-panel-card{background:var(--dash-surface-solid);border:1px solid var(--dash-border);border-radius:16px;box-shadow:var(--dash-card-shadow);padding:1rem;overflow:hidden}.shist-swap{display:grid;transition:grid-template-rows var(--mode-transition)}.shist-swap-pane{min-height:0;overflow:hidden;opacity:0;transition:opacity var(--mode-transition)}.shist-swap-pane[data-active=true]{opacity:1}.shist-tab-empty{background:var(--dash-surface-solid);border:1px dashed var(--dash-border);border-radius:14px;padding:2rem 1.5rem;text-align:center;font-size:.9375rem;color:var(--dash-text-muted)}.shist-table-wrap{background:color-mix(in srgb,var(--dash-text) 9%,var(--dash-surface-solid));border:1px solid var(--dash-border);border-radius:16px;overflow-x:auto;padding:2px 10px 10px}.shist-table{width:100%;border-collapse:separate;border-spacing:0 8px;font-size:.875rem}.shist-table thead th{text-align:left;padding:.75rem 1rem .125rem;font-size:.7rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--dash-text-muted)}.shist-table tbody td{padding:.75rem 1rem;color:var(--dash-text-secondary);background:var(--dash-surface-solid);border-top:1px solid var(--dash-border);border-bottom:1px solid var(--dash-border);transition:background var(--mode-transition),border-color var(--mode-transition)}.shist-table tbody td:first-child{border-left:1px solid var(--dash-border);border-radius:12px 0 0 12px}.shist-table tbody td:last-child{border-right:1px solid var(--dash-border);border-radius:0 12px 12px 0}.shist-table tbody tr:hover td{background:color-mix(in srgb,var(--dash-accent) 5%,var(--dash-surface-solid));border-color:color-mix(in srgb,var(--dash-accent) 25%,var(--dash-border))}.shist-row{cursor:pointer;transition:background var(--mode-transition)}.shist-row:focus-visible,.shist-row:hover{background:color-mix(in srgb,var(--dash-accent) 14%,transparent)}.shist-row:focus-visible{outline:2px solid var(--dash-accent);outline-offset:-2px}.shist-row[data-disabled=true]{cursor:default}.shist-row[data-disabled=true]:hover{background:transparent}.shist-row:hover .shist-row-title{color:var(--dash-accent)}.shist-row-title{background:none;border:none;padding:0;font-family:inherit;font-size:.9375rem;font-weight:700;color:var(--dash-text);text-align:left}.shist-row-actions{width:1px;white-space:nowrap}.shist-row-open{background:transparent;border:1px solid var(--dash-border);color:var(--dash-text-muted);padding:.375rem;border-radius:8px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.shist-row-open:hover{color:var(--dash-text);border-color:var(--dash-text-muted)}.shist-status-pill{display:inline-flex;align-items:center;gap:.25rem;padding:2px .5rem;border-radius:999px;font-size:.75rem;font-weight:700}.shist-status-pill[data-status=completed]{background:color-mix(in srgb,var(--dash-success) 18%,transparent);color:var(--dash-success)}.shist-status-pill[data-status=in_progress]{background:color-mix(in srgb,var(--dash-info) 18%,transparent);color:var(--dash-info)}.shist-status-pill[data-status=failed]{background:color-mix(in srgb,var(--dash-danger) 18%,transparent);color:var(--dash-danger)}.shist-status-pill[data-status=not_started]{background:color-mix(in srgb,var(--dash-text-muted) 12%,transparent);color:var(--dash-text-muted)}.shist-mode-pill{font-size:.75rem;font-weight:700;padding:2px .5rem;border-radius:999px}.shist-mode-pill[data-mode=study]{background:color-mix(in srgb,var(--dash-purple) 20%,transparent);color:var(--dash-purple)}.shist-mode-pill[data-mode=test]{background:color-mix(in srgb,var(--dash-info) 20%,transparent);color:var(--dash-info)}.shist-score{font-family:var(--font-heading,"Montserrat"),sans-serif;font-variant-numeric:tabular-nums;font-weight:800}.shist-score[data-grade=high]{color:var(--dash-success)}.shist-score[data-grade=mid]{color:var(--dash-warning)}.shist-score[data-grade=low]{color:var(--dash-danger)}.shist-pass{color:var(--dash-success);font-weight:700}.shist-fail{color:var(--dash-danger);font-weight:700}.shist-reports{display:flex;flex-direction:column;gap:1rem}.shist-reports-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}@media (max-width:880px){.shist-reports-row{grid-template-columns:1fr}}.shist-report-card{background:var(--dash-surface-solid);border:1px solid var(--dash-border);border-radius:16px;padding:1.25rem 1.5rem;box-shadow:var(--dash-card-shadow)}.shist-report-head{display:flex;align-items:flex-start;gap:.75rem;margin-bottom:1rem}.shist-report-icon{width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,var(--dash-purple),#6d28d9);color:#ffffff;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}.shist-report-title{font-family:var(--font-heading,"Montserrat"),sans-serif;font-size:.9375rem;font-weight:800;color:var(--dash-text);margin:0}.shist-report-sub{font-size:.8rem;color:var(--dash-text-muted);margin:.125rem 0 0}.shist-report-body{min-height:80px}.shist-report-empty{font-size:.875rem;color:var(--dash-text-muted);margin:0}.shist-topic-bars{display:flex;flex-direction:column;gap:.625rem;margin:0;padding:0;list-style:none}.shist-topic-bar-row{display:flex;justify-content:space-between;font-size:.8125rem;margin-bottom:.25rem}.shist-topic-bar-name{color:var(--dash-text);font-weight:700}.shist-topic-bar-meta{color:var(--dash-text-muted)}.shist-topic-bar-track{height:6px;background:var(--dash-border);border-radius:999px;overflow:hidden}.shist-topic-bar-fill{height:100%;background:linear-gradient(90deg,var(--dash-accent),#ea580c);border-radius:999px;transition:width .6s ease-in-out}@media (max-width:640px){.shist-table thead{display:none}.shist-table,.shist-table tbody{display:block}.shist-table tbody tr{display:flex;flex-wrap:wrap;justify-content:space-between;gap:2px 14px;padding:12px 14px;margin-bottom:8px;background:var(--dash-surface-solid);border:1px solid var(--dash-border);border-radius:12px}.shist-table tbody tr:last-child{margin-bottom:0}.shist-table tbody td{display:block;padding:0;border:none;border-radius:0;background:none}.shist-table tbody td:first-child{flex:1 1 100%;margin-bottom:6px}.shist-table tbody td:first-child .shist-row-title{white-space:normal;text-align:left}.shist-table tbody td.shist-row-actions{display:none}.shist-table tbody td[data-th]:before{content:attr(data-th);display:block;font-size:.8rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--dash-text-muted);margin-bottom:2px}}