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24px}.pb-lesson-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;display:flex}.pb-lesson-head .eyebrow{color:var(--orange);margin:0;font-weight:500}.pb-backlist{flex-basis:100%;font-size:15px;display:none}.pb-tools{gap:6px;display:flex}.pb-fs{border:0;min-width:0;margin:0;padding:0}.pb-fs:disabled input,.pb-fs:disabled textarea{background:var(--surface-2);color:var(--ink);opacity:1;-webkit-text-fill-color:var(--ink)}.pb-sub{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);border-top:1px solid var(--line-2);margin:26px 0 2px;padding-top:18px;font-size:13px}.pk{margin-top:14px}.pk-head{flex-direction:column;gap:2px;margin-bottom:8px;display:flex}.pk-head b{font-size:14.5px;font-weight:500}.pk-items{counter-reset:pk;flex-direction:column;gap:6px;margin:0 0 8px;padding:0;list-style:none;display:flex}.pk-items li{border:1px solid var(--line);background:var(--surface);counter-increment:pk;border-radius:10px;justify-content:space-between;align-items:center;gap:10px;padding:6px 6px 6px 12px;display:flex}.pk-items li:before{content:counter(pk);color:var(--ink-3);font-variant-numeric:tabular-nums;min-width:14px;font-size:12px}.pk-t{flex-wrap:wrap;flex:1;align-items:center;gap:4px 8px;min-width:0;padding:4px 0;font-size:14px;display:flex}.pk-tag{color:var(--ink-2);background:var(--surface-2);border:1px dashed var(--line);border-radius:999px;padding:1px 8px;font-size:11.5px}.pk-act{gap:4px;display:flex}.pk-act .iconbtn{border-radius:8px;width:30px;height:30px}.pk-empty{color:var(--ink-3);margin-bottom:8px;font-size:13.5px}.pk-add{border:1px solid var(--blue-line);background:var(--blue-tint);border-radius:12px;padding:10px}.pk-add input{width:100%;font:inherit;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px;padding:9px 12px;font-size:14.5px}.pk-results{flex-direction:column;gap:2px;max-height:260px;margin:8px 0 0;padding:0;list-style:none;display:flex;overflow-y:auto}.pk-results button{text-align:left;background:var(--surface);width:100%;font:inherit;color:var(--ink);cursor:pointer;border:1px solid #0000;border-radius:8px;flex-direction:column;gap:1px;padding:8px 10px;display:flex}.pk-results button:hover:not([disabled]){border-color:var(--blue-deep)}.pk-results button span{font-size:14px}.pk-results button small{color:var(--ink-2);font-size:12px}.pk-none{color:var(--ink-2);padding:8px 10px;font-size:13.5px}.pk-done{justify-content:space-between;align-items:center;gap:10px;margin-top:10px;display:flex}.pb-preview{border:1px solid var(--blue-line);background:var(--blue-tint);border-radius:12px;margin-top:26px;padding:16px 20px}.pb-preview h3{letter-spacing:.06em;text-transform:uppercase;color:var(--teal);margin-bottom:8px;font-size:12.5px}.pb-preview h3+p,.pb-preview>p{font-size:14px}.pb-preview h3:not(:first-child){margin-top:16px}.pb-secs{flex-direction:column;gap:4px;margin:0 0 8px;padding-left:20px;font-size:14px;display:flex}.pb-secs b{font-weight:500}.pb-secs span{color:var(--ink-2)}.pb-secs span:not(:empty):before{content:" · "}.pb-bar{z-index:5;padding:12px 36px calc(12px + env(safe-area-inset-bottom,0px));background:var(--ground);border-top:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 16px;margin:22px -36px 0;display:flex;position:sticky;bottom:0}.pb-status{color:var(--ink-2);flex:240px;font-size:14px}.pb-status.is-warn{color:var(--warn)}.pb-bar-actions{gap:10px;display:flex}@media (max-width:900px){.pb{grid-template-columns:1fr}.pb-list{max-height:none;position:static}.pb.is-editing .pb-list,.pb:not(.is-editing) .pb-edit{display:none}.pb-backlist{display:inline-flex}}@media (max-width:760px){a.navbtn{white-space:nowrap;padding:6px 0;font-size:14px}.pb-grid2{grid-template-columns:1fr}.pb-lesson{padding:16px}.pb-bar{margin:18px -16px 0;padding-left:16px;padding-right:16px}.pb-bar-actions{width:100%}.pb-bar-actions .btn{flex:1;justify-content:center}.plannew,.plancard{padding:16px}}