.session-tools{margin:22px 0 30px;border-top:1px solid var(--line);color:var(--ink);font-size:14px}
.session-tools button,.history-editor button{min-height:44px;border:1px solid var(--line-strong);border-radius:8px;background:var(--surface);color:var(--ink);font:inherit;display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:9px 13px;cursor:pointer}
.session-tools button:hover,.history-editor button:hover{background:var(--surface-2)}
.session-tools button:disabled,.history-editor button:disabled{opacity:.4;cursor:default}
.session-tools button:focus-visible,.session-tools input:focus-visible,.session-tools textarea:focus-visible,.session-tools select:focus-visible,.session-tools summary:focus-visible,.history-editor :is(button,input,textarea,select):focus-visible{outline:2px solid var(--focus);outline-offset:3px}
.session-tools :is(input,textarea,select),.history-editor :is(input,textarea,select){min-height:44px;width:100%;border:1px solid var(--line-strong);border-radius:7px;background:var(--surface);color:var(--ink);font:inherit;padding:10px 12px;box-sizing:border-box}
.session-tools textarea,.history-editor textarea{resize:vertical;line-height:1.5}
.session-tools :is(input,textarea,select)::placeholder,.history-editor input::placeholder{color:var(--muted)}
.session-tools label,.history-editor label{display:flex;flex-direction:column;gap:7px;min-width:0;font-size:13px;font-weight:600}
.session-tools label small,.session-tools-help{font-size:12px;color:var(--muted);font-weight:400;line-height:1.6}
.session-tools-toolbar{display:flex;gap:12px;flex-wrap:wrap;padding:12px 0}
.session-tools-toolbar button{border:0;background:transparent;padding:8px 2px;color:var(--muted);font-size:13px}
.session-tools-toolbar button:hover{background:transparent;color:var(--accent-text)}
.session-tools-toolbar .icon{width:17px;height:17px}
.session-tools-details{border-top:1px solid var(--line)}
.session-tools-details>summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:58px;padding:12px 0;cursor:pointer;list-style:none;font-weight:600;font-size:15px}
.session-tools-details>summary::-webkit-details-marker,.session-tools-picker>summary::-webkit-details-marker{display:none}
.session-tools-details>summary small{margin-left:8px;color:var(--muted);font-size:12px;font-weight:400;white-space:nowrap}
.session-tools-chevron{font-size:24px;font-weight:300;line-height:1}
.session-tools-details[open]>.session-tools-chevron,.session-tools-details[open]>summary .session-tools-chevron{transform:rotate(45deg)}
.session-tools-settings{padding:0 0 22px;display:grid;gap:16px}
.session-tools-note{max-width:760px}
.session-tools-settings-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;max-width:760px}
.session-tools-help{margin:0}
.session-tools .session-tools-check{display:flex;flex-direction:row;align-items:flex-start;gap:10px;cursor:pointer;font-size:14px;font-weight:500}
.session-tools-check input{appearance:auto;accent-color:var(--accent);width:19px;min-height:19px;height:19px;flex:none;margin:2px 0}
.session-tools-check span{display:flex;flex-direction:column;gap:3px}
.session-tools-settings-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.session-tools-settings-actions [role=status]{font-size:12px;color:var(--muted)}
.session-tools-status:empty{display:none}
.session-tools-status{font-size:13px;color:var(--accent-text);line-height:1.5;margin:12px 0 0}
.session-tools-organization{padding:0 0 22px}
.session-tools-sequence{list-style:none;padding:0;margin:14px 0 20px;border-bottom:1px solid var(--line)}
.session-tools-sequence-row{display:grid;grid-template-columns:24px minmax(0,1fr) auto;align-items:center;gap:12px;padding:11px 0;border-top:1px solid var(--line)}
.session-tools-sequence-row.is-current .session-tools-sequence-number{color:var(--accent-text)}
.session-tools-sequence-number{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.session-tools-sequence-copy{display:flex;flex-direction:column;gap:3px;min-width:0}
.session-tools-sequence-copy strong,.session-tools-picker-copy strong{font-size:14px;font-weight:600;line-height:1.35;overflow-wrap:anywhere}
.session-tools-sequence-copy small,.session-tools-picker-copy small{font-size:12px;color:var(--muted);line-height:1.4}
.session-tools-sequence-actions{display:flex;gap:6px}
.session-tools-sequence-actions button{width:44px;min-width:44px;padding:0;border-color:var(--line)}
.session-tools-sequence-actions .icon{width:17px;height:17px}
.session-tools-confirm{grid-column:2/-1;border-left:2px solid var(--danger);padding:4px 0 4px 12px}
.session-tools-confirm p{margin:0 0 9px;font-size:13px;line-height:1.5}
.session-tools-confirm>div{display:flex;gap:8px;flex-wrap:wrap}
.session-tools button.session-tools-danger{color:var(--danger);border-color:var(--danger)}
.session-tools-picker>summary{display:flex;align-items:center;gap:7px;min-height:44px;color:var(--accent-text);font-weight:600;cursor:pointer;list-style:none}
.session-tools-picker-controls{display:flex;gap:12px;margin:12px 0;align-items:center}
.session-tools-picker-controls>label{flex:1;min-width:140px}
.session-tools-tabs{display:flex;gap:4px}
.session-tools-tabs button{border-color:var(--line);font-size:13px}
.session-tools-tabs button[aria-pressed=true]{color:var(--accent-text);background:var(--accent-soft);border-color:var(--accent-text)}
.session-tools-picker-results{max-height:380px;overflow-y:auto;overscroll-behavior:contain;padding:0 4px 0 0;scrollbar-gutter:stable}
.session-tools-picker-row{display:grid;grid-template-columns:64px minmax(0,1fr) auto;gap:12px;align-items:center;min-height:80px;border-top:1px solid var(--line);padding:9px 0}
.session-tools-thumbnail{display:block;aspect-ratio:4/3;width:64px;overflow:hidden;border-radius:5px;background:var(--surface-2)}
.session-tools-thumbnail img{width:100%;height:100%;object-fit:cover;display:block}
.session-tools-image-fallback{display:flex;align-items:center;justify-content:center;width:100%;height:100%;color:var(--muted)}
.session-tools-picker-copy{display:flex;flex-direction:column;gap:4px;min-width:0}
.session-tools-small-button{font-size:12px!important;white-space:nowrap}
.session-tools-small-button .icon{width:16px;height:16px}
.session-tools-empty{margin:16px 0;color:var(--muted);font-size:14px;line-height:1.6}
.session-tools-timer{display:grid;grid-template-columns:1fr 1fr;gap:14px 24px;padding:18px 0 22px;border-top:1px solid var(--line)}
.session-tools-timer-copy{display:flex;flex-direction:column;gap:6px}
.session-tools-kicker{color:var(--muted);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.session-tools-timer-copy strong{font-size:42px;font-weight:500;letter-spacing:-.04em;line-height:1.1;font-variant-numeric:tabular-nums}
.session-tools-timer-copy>span:last-child{font-size:12px;color:var(--muted)}
.session-tools-timer-fields{display:grid;grid-template-columns:1fr 1fr;gap:10px;align-items:end}
.session-tools-timer-actions{display:flex;gap:8px;flex-wrap:wrap;grid-column:1/-1}
.session-tools-timer>.session-tools-help{grid-column:1/-1}
.session-tools button.session-tools-primary,.history-editor button.session-tools-primary{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}
.session-tools button.session-tools-primary:hover,.history-editor button.session-tools-primary:hover{filter:brightness(.94)}
.session-tools-sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.history-editor{display:grid;gap:20px;color:var(--ink);max-width:820px}
.history-editor-intro{font-size:14px;color:var(--muted);line-height:1.6;margin:0}
.history-editor-duration{max-width:420px}
.history-editor-duration small{font-size:12px;font-weight:400;line-height:1.6;color:var(--muted)}
.session-review-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
.session-review-time{font-variant-numeric:tabular-nums;font-size:32px;letter-spacing:-.03em;line-height:1.2;margin:8px 0}
.session-review-note{color:var(--muted);font-size:13px;line-height:1.6;margin:0 0 20px}
@media(max-width:640px){.session-review-actions>.btn{width:100%;white-space:normal;text-align:center;min-height:44px}}
.history-editor-exercise{border-top:1px solid var(--line);padding-top:16px;margin:0 0 20px}
.history-editor-exercise:last-child{margin-bottom:0}
.history-editor-exercise h3{font-size:17px;font-weight:600;margin:0 0 12px}
.history-editor-set{display:grid;grid-template-columns:24px repeat(4,minmax(0,1fr));align-items:end;gap:10px;padding:8px 0}
.history-editor-set-number{font-size:12px;color:var(--muted);padding-bottom:16px}
.history-editor-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap;padding-top:16px;border-top:1px solid var(--line)}
.history-editor-status{font-size:12px;color:var(--muted);line-height:1.5;margin-right:auto;flex-basis:100%}
.history-editor-status.has-error{color:var(--danger)}
dialog:has(.history-editor){width:min(900px,calc(100vw - 32px))}
@media(max-width:640px){
 .session-tools{margin-top:18px;font-size:13px}
 .session-tools-toolbar{gap:6px 18px}
 .session-tools-toolbar button{font-size:12px}
 .session-tools-details>summary{font-size:14px;min-height:58px}
 .session-tools-details>summary small{display:block;margin:4px 0 0}
 .session-tools-settings-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .session-tools :is(input,textarea,select),.history-editor :is(input,textarea,select){font-size:16px;padding:10px}
 .session-tools-sequence-row{grid-template-columns:20px minmax(0,1fr);gap:8px 10px;padding:12px 0}
 .session-tools-sequence-actions{grid-column:2;justify-self:start}
 .session-tools-confirm{grid-column:1/-1;margin:4px 0 0}
 .session-tools-picker-controls{flex-wrap:wrap}
 .session-tools-picker-controls>label{flex-basis:100%}
 .session-tools-picker-row{grid-template-columns:52px minmax(0,1fr) auto;gap:8px;min-height:78px}
 .session-tools-thumbnail{width:52px}
 .session-tools-picker-copy strong{font-size:13px}
 .session-tools-picker-copy small{font-size:11px}
 .session-tools-picker-row .session-tools-small-button{font-size:11px!important;min-width:80px;padding:8px}
 .session-tools-picker-row .session-tools-small-button .icon{display:none}
 .session-tools-timer{gap:14px 12px}
 .session-tools-timer-copy strong{font-size:38px}
 .session-tools-timer-fields{grid-template-columns:1fr;gap:8px}
 .session-tools-timer-actions button{flex:1;padding:9px 10px;font-size:12px;white-space:nowrap}
 .history-editor{gap:16px}
 .history-editor-set{grid-template-columns:20px repeat(2,minmax(0,1fr));gap:8px 10px;border-top:1px solid var(--line);padding:12px 0}
 .history-editor-set>label:nth-child(4){grid-column:2}
 .history-editor-set-number{align-self:start;padding-top:28px}
 .history-editor-actions button{flex:1}
}
@media(prefers-reduced-motion:reduce){.session-tools *,.history-editor *{scroll-behavior:auto!important}}