.lesson-details-dialog{--ld-bg:var(--schedule-panel);--ld-soft:var(--schedule-panel-soft);--ld-text:var(--schedule-text);--ld-muted:var(--schedule-muted);--ld-border:var(--schedule-panel-border);--ld-accent:#4b56e8;--ld-tint:#eef0ff;--ld-primary-text:#fff;width:min(670px,calc(100% - 32px));max-width:none;max-height:calc(100dvh - 48px);margin:auto;padding:0;border:1px solid var(--ld-border);border-radius:22px;background:var(--ld-bg);color:var(--ld-text);font:14px/1.5 Inter,system-ui,sans-serif;overflow-y:auto;overscroll-behavior:contain;box-shadow:0 18px 60px rgba(15,23,42,.2)}
    .dark .lesson-details-dialog{--ld-accent:#a5adff;--ld-tint:#282d56;--ld-primary-text:#141d3a}
    .lesson-details-dialog::backdrop{background:rgba(15,23,42,.3);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
    .lesson-details-dialog *{box-sizing:border-box}
    .lesson-details-dialog [hidden]{display:none!important}
    .lesson-details-dialog .ld-header{padding:24px 26px 12px;display:flex;gap:20px;align-items:flex-start;position:sticky;top:0;z-index:1;background:var(--ld-bg)}
    .lesson-details-dialog .ld-heading{flex:1;min-width:0}
    .lesson-details-dialog h2{font:750 24px/1.25 Inter,system-ui,sans-serif;margin:9px 0 0;overflow-wrap:anywhere}
    .lesson-details-dialog h3{font-size:15px;margin:0 0 7px;font-weight:650}
    .lesson-details-dialog .ld-kind{font-size:12px;font-weight:650;color:var(--ld-accent)}
    .lesson-details-dialog button{font:inherit;cursor:pointer}
    .lesson-details-dialog .ld-close{width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;border:1px solid var(--ld-border);border-radius:10px;background:var(--ld-bg);color:var(--ld-muted)}
    .lesson-details-dialog .ld-tabs{display:flex;gap:24px;padding:0 26px;margin-top:12px;border-bottom:1px solid var(--ld-border)}
    .lesson-details-dialog .ld-tabs button{padding:10px 0 13px;background:none;border:0;border-bottom:2px solid transparent;color:var(--ld-muted);font-weight:600}
    .lesson-details-dialog .ld-tabs button[aria-selected="true"]{border-bottom-color:var(--ld-accent);color:var(--ld-accent)}
    .lesson-details-dialog .ld-body{padding:22px 26px}
    .lesson-details-dialog .ld-date{margin-bottom:3px;font-size:14px}
    .lesson-details-dialog .ld-time{font-size:25px;font-weight:750;letter-spacing:-.3px}
    .lesson-details-dialog .ld-duration{font-size:13px;color:var(--ld-muted);margin-left:12px;white-space:nowrap}
    .lesson-details-dialog dl{margin:22px 0 0;display:grid;grid-template-columns:125px minmax(0,1fr);gap:17px 18px}
    .lesson-details-dialog dt{color:var(--ld-muted)}
    .lesson-details-dialog dd{margin:0;overflow-wrap:anywhere}
    .lesson-details-dialog .ld-small{font-size:13px;color:var(--ld-muted);display:block;margin-top:3px}
    .lesson-details-dialog .ld-email{color:var(--ld-accent);margin-top:4px;display:block;font-size:13px}
    .lesson-details-dialog .ld-teachers{display:grid;gap:18px;min-width:0}
    .lesson-details-dialog .ld-teacher-name{font-weight:650}
    .lesson-details-dialog .ld-teacher-rating{margin-top:9px;padding:12px 14px;border:1px solid var(--ld-border);border-radius:11px;background:var(--ld-soft);font-size:12px;overflow-wrap:anywhere}
    .lesson-details-dialog .ld-rating-heading{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:4px 12px;color:var(--ld-muted)}
    .lesson-details-dialog .ld-rating-label{font-weight:600}
    .lesson-details-dialog .ld-rating-source{font-size:11px}
    .lesson-details-dialog .ld-rating-status{margin:8px 0;color:var(--ld-text)}
    .lesson-details-dialog .ld-rating-value{font-size:25px;line-height:1.2;letter-spacing:-.3px;font-weight:750}
    .lesson-details-dialog .ld-rating-counts{display:block;margin-top:5px;color:var(--ld-muted)}
    .lesson-details-dialog .ld-rating-department{margin:6px 0;color:var(--ld-muted)}
    .lesson-details-dialog .ld-rating-checked{display:block;margin-top:7px;color:var(--ld-muted)}
    .lesson-details-dialog .ld-rating-stale{margin:7px 0 0;color:var(--ld-muted);font-weight:600}
    .lesson-details-dialog .ld-rating-retry,.lesson-details-dialog .ld-teacher-schedule{display:block;min-height:36px;padding:6px 0;border:0;background:none;color:var(--ld-accent);text-align:left;text-decoration:underline;text-underline-offset:3px;font-size:12px}
    .lesson-details-dialog .ld-teacher-schedule{margin-top:2px}
    .lesson-details-dialog .ld-divider{border:0;border-top:1px solid var(--ld-border);margin:23px 0 17px}
    .lesson-details-dialog summary{color:var(--ld-muted);font-size:13px;cursor:pointer;padding-block:6px}
    .lesson-details-dialog .ld-source{display:grid;gap:7px;margin-top:13px;font-size:13px;color:var(--ld-muted)}
    .lesson-details-dialog .ld-footer{border-top:1px solid var(--ld-border);padding:17px 26px;display:flex;flex-wrap:wrap;gap:9px}
    .lesson-details-dialog .ld-button{background:var(--ld-bg);border:1px solid var(--ld-border);border-radius:10px;padding:10px 13px;font-size:13px;font-weight:600;color:var(--ld-text);min-height:42px}
    .lesson-details-dialog .ld-primary{background:var(--ld-accent);border-color:var(--ld-accent);color:var(--ld-primary-text)}
    .lesson-details-dialog .ld-subtitle{color:var(--ld-muted);font-size:13px;margin:0 0 18px}
    .lesson-details-dialog .ld-occurrences{margin-top:19px}
    .lesson-details-dialog .ld-occurrence{display:grid;grid-template-columns:76px minmax(0,1fr) 18px;gap:14px;align-items:center;width:100%;padding:14px 6px;border:0;border-top:1px solid var(--ld-border);background:var(--ld-bg);text-align:left;color:var(--ld-text);overflow-wrap:anywhere}
    .lesson-details-dialog .ld-occurrence b{font-weight:650}
    .lesson-details-dialog .ld-count{background:var(--ld-soft);padding:12px 14px;border-radius:10px;font-size:13px}
    .lesson-details-dialog .ld-copy{border-top:1px solid var(--ld-border);padding:16px 26px}
    .lesson-details-dialog textarea{width:100%;min-height:154px;padding:10px;background:var(--ld-soft);color:var(--ld-text);border:1px solid var(--ld-border);border-radius:8px;font:13px/1.6 Inter,system-ui,sans-serif}
    .lesson-details-dialog .ld-occurrence[aria-current="true"]{background:var(--ld-tint);border-radius:8px}
    .lesson-details-dialog .ld-button:hover,.lesson-details-dialog .ld-close:hover,.lesson-details-dialog .ld-occurrence:hover{filter:brightness(.96)}
    .lesson-details-dialog :is(button,a,summary,textarea):focus-visible{outline:2px solid var(--ld-accent);outline-offset:3px}
    .lesson-details-dialog .ld-text-link{color:var(--ld-accent);text-decoration:underline;text-underline-offset:3px}
    .lesson-details-dialog .ld-links{display:grid;gap:8px}
    .lesson-details-dialog .ld-notes{white-space:pre-wrap}
    .lesson-details-dialog .ld-extra-actions{display:flex;flex-wrap:wrap;gap:8px;padding-top:12px}
    .lesson-details-dialog details+details{margin-top:6px}
    .lesson-details-dialog .ld-warning{font-weight:600}
    .lesson-details-dialog .ld-arrow{color:var(--ld-muted)}
    .lesson-details-dialog .ld-curriculum{padding:17px 18px;margin-bottom:25px;border:1px solid var(--ld-border);border-radius:14px;background:var(--ld-soft);overflow-wrap:anywhere}
    .lesson-details-dialog .ld-curriculum-confirmed{background:var(--ld-tint)}
    .lesson-details-dialog .ld-curriculum h3{margin-bottom:4px}
    .lesson-details-dialog .ld-curriculum-context{margin:0 0 11px;font-size:13px;color:var(--ld-muted)}
    .lesson-details-dialog .ld-curriculum-hint{margin:10px 0 0;font-size:13px;color:var(--ld-muted)}
    .lesson-details-dialog .ld-curriculum .ld-button{margin-top:12px}
    .lesson-details-dialog .ld-assessment-badges{display:flex;flex-wrap:wrap;gap:7px}
    .lesson-details-dialog .ld-assessment-kind{display:inline-block;padding:6px 11px;border:1px solid var(--ld-border);border-radius:8px;background:var(--ld-bg);font-size:16px;font-weight:700;color:var(--ld-text)}
    .lesson-details-dialog .ld-assessment-sources{display:flex;flex-wrap:wrap;gap:5px 15px;margin-top:8px;font-size:12px}
    .lesson-details-dialog .ld-assessment-terms{display:grid;gap:14px}
    .lesson-details-dialog .ld-curriculum details{margin-top:10px}
    .lesson-details-dialog .ld-curriculum details .ld-assessment-kind{font-size:13px;font-weight:600}
    .lesson-details-dialog .ld-curriculum details .ld-assessment-terms{padding-top:7px}
    .lesson-details-dialog .ld-curriculum-provenance{display:grid;gap:3px;margin-top:14px;padding-top:11px;border-top:1px solid var(--ld-border);font-size:12px;color:var(--ld-muted)}
    [data-lesson-card]{cursor:pointer}
    .schedule-feed-card-title.lesson-details-button{display:block;background:none;border:0;padding:0;text-align:left;color:inherit;cursor:pointer}
    @media(max-width:600px){
        .lesson-details-dialog{width:100%;height:100dvh;max-height:none;margin:0;border:0;border-radius:0;padding-bottom:env(safe-area-inset-bottom)}
        .lesson-details-dialog .ld-header{padding:calc(20px + env(safe-area-inset-top)) 18px 12px;gap:12px}
        .lesson-details-dialog h2{font-size:21px}
        .lesson-details-dialog .ld-tabs{padding:0 18px}
        .lesson-details-dialog .ld-body{padding:20px 18px}
        .lesson-details-dialog dl{grid-template-columns:1fr;gap:4px}
        .lesson-details-dialog dd{margin-bottom:12px}
        .lesson-details-dialog .ld-footer,.lesson-details-dialog .ld-copy{padding:16px 18px}
        .lesson-details-dialog .ld-footer button{width:100%;min-height:44px}
        .lesson-details-dialog .ld-duration{display:block;margin:3px 0 0}
        .lesson-details-dialog .ld-close{width:44px;height:44px;flex-basis:44px}
        .lesson-details-dialog .ld-rating-retry,.lesson-details-dialog .ld-teacher-schedule{min-height:44px}
        .lesson-details-dialog .ld-occurrence{grid-template-columns:64px minmax(0,1fr) 16px;gap:10px}
    }