.unit-hero{position:relative;overflow:hidden;background:linear-gradient(115deg,#fff3cd 0%,#ffe4bd 48%,#ffd7c8 100%);padding:28px clamp(22px,9vw,130px) 80px;min-height:360px}.unit-hero-inner{position:relative;max-width:1160px;margin:auto;z-index:1}.unit-hero .crumb{display:inline-block;font-size:14px;font-weight:700;color:#775a54}.unit-hero-copy{max-width:640px;position:relative;z-index:1}.unit-badge{display:inline-flex;padding:9px 14px;background:#fff9;border:1px solid #fff;border-radius:30px;font-size:15px;font-weight:800;color:#6d584b;margin-top:28px;box-shadow:0 5px 15px #b36d2a12}.unit-hero h1{font-size:clamp(2.8rem,6vw,5.1rem);line-height:1.15;letter-spacing:-.04em;color:#283d37;margin:17px 0 10px;font-weight:900}.unit-hero-copy>p{font-size:clamp(18px,2vw,22px);line-height:1.7;color:#53645a;max-width:580px;margin:0}.unit-hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:23px}.unit-hero-tags span{background:#fff9;padding:9px 13px;border-radius:30px;font-size:14px;font-weight:700;color:#52645a}.unit-mascot{position:absolute;right:5%;top:28px;width:350px;height:280px;display:grid;place-items:center}.mascot-sun{position:absolute;right:35px;top:8px;width:105px;height:105px;background:#ffcf4e;border-radius:50%;display:grid;place-items:center;font-size:49px;box-shadow:0 9px 0 #eda849}.mascot-book{position:absolute;bottom:22px;right:94px;font-size:132px;transform:rotate(6deg);filter:drop-shadow(0 13px 5px #7a514033)}.mascot-character{position:absolute;bottom:24px;right:173px;font-size:113px;filter:drop-shadow(0 10px 3px #74564430);transform:rotate(-8deg)}.mascot-spark{position:absolute;color:#e78952;font-size:40px;animation:float-spark 2s ease-in-out infinite alternate}.spark-one{top:64px;left:48px}.spark-two{right:23px;bottom:100px;font-size:26px;animation-delay:.4s}.mascot-sun{animation:sun-bob 2.6s ease-in-out infinite alternate}@keyframes float-spark{to{transform:translateY(-10px) rotate(16deg)}}@keyframes sun-bob{to{transform:translateY(-7px)}}.unit-hero-wave{position:absolute;left:-5%;right:-5%;height:70px;bottom:-42px;border-radius:50% 50% 0 0;background:#fffefa}.unit-draft-note{max-width:1120px;margin:19px auto 0;padding:12px 17px;background:#fff8df;border:1px solid #f0dea0;border-radius:14px;font-size:14px;color:#786641}.unit-page{max-width:1240px;margin:auto;padding:32px clamp(17px,5vw,55px) 80px;display:grid;grid-template-columns:minmax(0,1fr) 295px;gap:34px;align-items:start}.unit-main{min-width:0}.unit-section-heading{display:flex;align-items:center;justify-content:space-between;margin:0 0 19px;padding:0 5px}.unit-section-heading h2{font-size:clamp(27px,3vw,36px);line-height:1.25;margin:6px 0;color:#243e36;font-weight:900}.unit-section-heading p{font-size:16px;color:#738078;margin:5px 0}.unit-eyebrow{font-size:12px;letter-spacing:.13em;color:#86964e;font-weight:900}.unit-map-icon{font-size:59px;transform:rotate(-9deg)}.unit-road{display:grid;gap:15px;position:relative}.unit-lesson{background:#fff;border:2px solid #e8ecdf;border-radius:22px;overflow:hidden;box-shadow:0 7px 0 #e9eddf;transition:transform .2s,box-shadow .2s}.unit-lesson[open]{border-color:#c6d998;box-shadow:0 8px 0 #dce9bf,0 12px 24px #304b2b0d;transform:translateY(-2px)}.unit-lesson summary{padding:19px 21px;display:flex;align-items:center;gap:15px;cursor:pointer;list-style:none;min-height:88px}.unit-lesson summary::-webkit-details-marker{display:none}.unit-step{width:54px;height:54px;border-radius:17px;background:#eff4d9;display:grid;place-items:center;font-size:27px;flex:none}.unit-lesson:nth-child(2) .unit-step{background:#e2f1f2}.unit-lesson:nth-child(3) .unit-step{background:#fbe8d9}.lesson-heading{flex:1}.lesson-heading b{display:block;font-size:21px;color:#293e36;font-weight:900}.lesson-heading small{display:block;color:#7c8981;font-size:14px;margin-top:4px}.unit-check{font-size:24px;color:#c5cdb9}.unit-lesson[data-done=true] .unit-check{color:#4d9b61}.lesson-open{font-size:26px;font-weight:700;color:#99a18f;transition:transform .2s}.unit-lesson[open] .lesson-open{transform:rotate(45deg)}.unit-lesson-body{padding:0 24px 24px 90px}.unit-lesson-body>p{font-size:18px;line-height:1.9;margin:0 0 15px;color:#44544b}.unit-example,.unit-think{padding:18px 20px;border-radius:17px;margin:12px 0;background:#f2f6e8;border:1px solid #e7edda}.unit-example b,.unit-think b{font-size:16px;color:#4c6947}.unit-example p,.unit-think p{font-size:18px;line-height:1.9;margin:7px 0 0;color:#33473e}.unit-think{background:#fff4de;border-color:#f2e4c3}.unit-lesson-body .button{margin-top:8px;min-height:52px;font-size:16px;border-radius:15px}.unit-start{margin-top:24px;min-height:63px;font-size:19px;font-weight:900;padding:0 28px;border:0;border-radius:18px;background:#f18b50;color:white;box-shadow:0 6px 0 #d66d35;cursor:pointer}.unit-start:disabled{opacity:.52;cursor:not-allowed}.unit-start:not(:disabled):hover{transform:translateY(-2px)}.unit-lock{font-size:14px;color:#828d81}.unit-quiz{margin-top:33px;padding:clamp(22px,4vw,37px);background:#f2f6e8;border:2px solid #e0e9d0;border-radius:24px;scroll-margin-top:18px}.unit-quiz[hidden]{display:none}.unit-quiz h2{font-size:32px;margin:8px 0;color:#263e36}.unit-lead{font-size:17px;color:#647269}.unit-question{border:0;border-bottom:1px solid #dce5d2;padding:20px 0;margin:0}.unit-question legend{display:flex;gap:12px;align-items:flex-start;width:100%;font-size:19px;line-height:1.6;font-weight:800;margin-bottom:11px;color:#34473d}.unit-option{display:flex;align-items:center;gap:12px;border:2px solid #e2e8d9;border-radius:14px;padding:13px 15px;margin:8px 0;background:white;cursor:pointer;font-size:18px}.unit-option:has(input:checked){border-color:#92b769;background:#f4f9e8}.unit-option input{accent-color:#54754b;width:20px;height:20px}.unit-option>span{font-weight:800;color:#869753}.unit-feedback{display:block;min-height:0;font-size:14px;margin:0}.unit-feedback.is-correct{color:#467751;margin-top:5px}.unit-feedback.is-incorrect{color:#b95f48;margin-top:5px}.unit-story{background:#fff1d5;padding:22px;border-radius:19px;margin:22px 0;border:1px solid #f3dfad}.unit-story>b{font-size:19px}.unit-story p{font-size:17px;line-height:1.8}.unit-story li{font-size:15px;margin:5px 0}.unit-story button{min-height:48px}.unit-story small{margin-left:9px;color:#55734b;font-size:13px}.unit-result{padding:15px 19px;background:#e0ebca;border-radius:13px;font-size:20px;font-weight:900}.unit-answer-key{background:#fff;padding:17px 20px;border-radius:15px;margin-top:15px}.unit-answer-key[hidden]{display:none}.unit-answer-key summary{cursor:pointer;font-size:17px;font-weight:900}.unit-answer-key p{font-size:15px;line-height:1.8}.unit-parent{position:sticky;top:14px}.unit-parent>details{background:#294c41;color:white;border-radius:21px;overflow:hidden;box-shadow:0 9px 0 #dce5d1}.unit-parent>details>summary{list-style:none;display:flex;justify-content:space-between;align-items:center;padding:19px 21px;cursor:pointer;background:#386251;font-size:18px;font-weight:900}.unit-parent>details>summary::-webkit-details-marker{display:none}.parent-spark{color:#f5d56d}.parent-progress{padding:20px 22px}.parent-progress h3{font-size:24px;margin:0}.parent-progress>p{font-size:14px;line-height:1.7;color:#d5e4d8}.progress-track{height:14px;background:#527365;border-radius:12px;margin:17px 0 7px;overflow:hidden}.progress-track span{display:block;height:100%;width:0;background:#f3d66c;border-radius:12px;transition:width .25s}.progress-label{font-size:14px;font-weight:800;color:#ffe58b}.parent-progress dl{margin:14px 0}.parent-progress dl div{display:flex;justify-content:space-between;gap:8px;padding:10px 0;border-bottom:1px solid #527365}.parent-progress dt{font-size:14px;color:#d9e5dc}.parent-progress dd{margin:0;font-size:14px;font-weight:900}.unit-reset{padding:0;border:0;background:transparent;color:#d4e0d8;text-decoration:underline;font-size:12px;cursor:pointer}.parent-tip{display:flex;gap:12px;margin:18px 2px;padding:16px;background:#fff7e7;border:1px solid #f0e2c1;border-radius:17px}.parent-tip span{font-size:24px}.parent-tip p{font-size:14px;line-height:1.7;color:#6d6653;margin:0}@media(max-width:950px){.unit-page{grid-template-columns:1fr}.unit-parent{position:static;grid-row:1}.unit-parent>details{max-width:none}.unit-parent>details:not([open]) .parent-progress{display:none}.unit-mascot{right:0;opacity:.5}.unit-hero-copy{max-width:70%}}@media(max-width:620px){.unit-hero{padding:20px 19px 60px;min-height:360px}.unit-hero-copy{max-width:100%;position:relative;z-index:2}.unit-hero h1{font-size:42px;max-width:390px}.unit-hero-copy>p{font-size:18px;max-width:340px}.unit-badge{margin-top:22px}.unit-hero-tags{gap:7px;max-width:300px}.unit-hero-tags span{font-size:12px;padding:8px 10px}.unit-mascot{right:-100px;top:95px;transform:scale(.7);opacity:.22}.unit-page{padding:24px 15px 56px;gap:20px}.unit-section-heading h2{font-size:29px}.unit-map-icon{font-size:43px}.unit-lesson summary{padding:14px;gap:11px;min-height:74px}.unit-step{width:44px;height:44px;border-radius:14px;font-size:23px}.lesson-heading b{font-size:18px}.lesson-heading small{font-size:12px}.unit-lesson-body{padding:0 15px 18px}.unit-lesson-body>p,.unit-example p,.unit-think p{font-size:16px}.unit-example,.unit-think{padding:15px}.unit-example b,.unit-think b{font-size:15px}.unit-quiz{padding:18px 14px}.unit-question legend,.unit-option{font-size:16px}.unit-option{padding:12px}.unit-story small{display:block;margin:8px 0 0}.unit-draft-note{margin:12px 15px 0;font-size:12px}.unit-parent>details>summary{font-size:16px;padding:16px}}
/* Clear completion feedback for lesson steps */
.lesson-done-button{margin-top:10px;min-height:54px;padding:0 20px;border:2px solid #df8b47;border-radius:15px;background:#fff4dd;color:#865323;font-family:inherit;font-size:16px;font-weight:800;box-shadow:0 4px 0 #f3dfbd;cursor:pointer;transition:transform .15s,background .15s,color .15s}.lesson-done-button:hover{transform:translateY(-2px);background:#ffebc1}.lesson-done-button:focus-visible{outline:3px solid #df8b47;outline-offset:3px}.lesson-done-button:disabled{border-color:#4c9b61;background:#4c9b61;color:white;box-shadow:0 4px 0 #347d48;opacity:1;cursor:default}.unit-lesson[data-done=true]{border-color:#8fc576;background:#fcfff7;box-shadow:0 8px 0 #d8edc9,0 12px 24px #304b2b0d}.unit-lesson[data-done=true] .unit-step{background:#dff2d4}.unit-lesson[data-done=true] .unit-check{color:#378a4f;font-weight:900}.lesson-done-note{margin:14px 0 0;padding:12px 15px;border-radius:12px;background:#e9f7df;color:#367447;font-size:15px;font-weight:800;animation:done-pop .3s ease-out}.lesson-done-note[hidden]{display:none}@keyframes done-pop{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}

/* Read-along voice prompt */
.lesson-audio{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:0 0 15px;padding:12px 14px;border-radius:14px;background:#edf3ff;border:1px solid #d8e4ff}.lesson-audio-button{min-height:46px;padding:0 16px;border:0;border-radius:13px;background:#426bc2;color:#fff;font-family:inherit;font-size:15px;font-weight:900;box-shadow:0 4px 0 #31549d;cursor:pointer}.lesson-audio-button:hover{background:#345cae;transform:translateY(-1px)}.lesson-audio-button:focus-visible{outline:3px solid #f2b84c;outline-offset:3px}.lesson-audio-button[data-playing=true]{background:#ed9952;box-shadow:0 4px 0 #c47b39}.lesson-audio>span{font-size:13px;color:#536b92;line-height:1.55}.lesson-audio>span:empty{display:none}@media(max-width:620px){.lesson-audio{align-items:flex-start;flex-direction:column;gap:8px}.lesson-audio-button{width:100%;min-height:50px}.lesson-audio>span{font-size:13px}}
/* Actual recorded audio, with no browser TTS fallback */
.lesson-audio{display:flex;flex-direction:column;align-items:stretch;gap:8px;margin:0 0 16px;padding:14px 16px;border-radius:14px;background:#edf3ff;border:1px solid #d8e4ff}.lesson-audio .audio-label{font-size:15px;font-weight:900;color:#375a9d}.lesson-audio audio{width:100%;height:42px}.lesson-audio-pending{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:0 0 16px;padding:14px 16px;border-radius:14px;background:#f2f2ee;border:1px dashed #bdc4b9;color:#69756b;font-size:14px;font-weight:800}.lesson-audio-pending span{font-weight:400;font-size:13px;color:#818a81}@media(max-width:620px){.lesson-audio{padding:12px}.lesson-audio audio{width:100%}.lesson-audio-pending{align-items:flex-start;flex-direction:column;gap:4px}}