:root{--ink:#243946;--muted:#5d707b;--blue:#e6f2fc;--blue-deep:#226b95;--yellow:#ffce3d;--cream:#fff8e4;--line:#dce7ed;--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;font-size:16px;line-height:1.55}a{color:inherit;text-decoration:none}button{font:inherit}svg{width:24px;height:24px;flex-shrink:0}img{display:block;max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.18}h1{font-size:58px;letter-spacing:-2.4px;font-weight:700;margin-bottom:25px}h1 span{color:var(--blue-deep)}h2{font-size:30px;letter-spacing:-.8px;margin-bottom:14px}h3{font-size:22px;margin-bottom:10px;letter-spacing:-.4px}.header,main,footer{width:min(1160px,calc(100% - 80px));margin:auto}.header{min-height:100px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{display:flex;gap:13px;align-items:center;font-size:23px;line-height:1.15;font-weight:700;letter-spacing:-.6px}.brand-icon{width:47px;height:47px;display:grid;place-items:center;background:var(--yellow);border-radius:14px;transform:rotate(-5deg)}.brand-icon svg{width:29px;height:29px}.brand small{display:block;font-size:9px;font-weight:500;letter-spacing:1.5px;margin-top:8px;color:var(--muted)}.header nav{display:flex;gap:5px}.header nav a{padding:11px 18px;border-radius:30px;font-size:14px}.header nav a[aria-current=page]{background:var(--blue);color:#225a7b}.header nav a:hover{background:#f0f6fa}.eyebrow{font-size:10px;letter-spacing:1.7px;font-weight:650;color:var(--blue-deep);margin-bottom:18px}.hero{display:grid;grid-template-columns:1.25fr 1fr;align-items:center;gap:40px;padding:62px 0 66px}.hero-description{font-size:25px;line-height:1.4;letter-spacing:-.3px;margin-bottom:18px}.hero-note{font-size:16px;color:var(--muted);margin-bottom:28px}.button{display:inline-flex;align-items:center;justify-content:center;gap:23px;min-height:53px;padding:14px 23px;font-size:15px;font-weight:650;border-radius:13px;transition:background .15s,transform .15s}.button svg{width:21px;height:21px}.primary{background:var(--yellow);color:var(--ink)}a.button:hover,a:hover .button{background:#ffda66;transform:translateY(-2px)}.hero-art{min-height:444px;display:grid;place-items:center;position:relative}.art-circle{position:absolute;width:390px;height:390px;border-radius:50%;background:var(--blue)}.hero-cover{position:relative;width:260px;transform:rotate(6deg);border-radius:3px 8px 8px 3px;box-shadow:10px 16px 32px #22475c25;border:1px solid #e2e9ed}.art-label{position:absolute;left:10px;bottom:8px;display:flex;align-items:center;gap:10px;background:white;border:1px solid var(--line);box-shadow:0 5px 18px #2447580a;border-radius:40px;padding:12px 20px;font-size:13px;transform:rotate(-5deg)}.art-label svg{color:#b18300;width:20px}.art-spark{position:absolute;right:13px;top:15px;color:#edb71f;font-size:58px}.prepare{display:flex;align-items:center;gap:23px;padding:28px 30px;background:var(--blue);border-radius:var(--radius)}.round-icon{display:grid;place-items:center;width:58px;height:58px;border-radius:18px;background:#fff;flex-shrink:0;color:var(--blue-deep)}.round-icon svg{width:28px;height:28px}.prepare .eyebrow{font-size:9px;letter-spacing:1.4px;margin-bottom:6px}.prepare h2{font-size:22px;margin-bottom:6px}.prepare p:last-child{font-size:14px;margin:0;color:var(--muted)}.pending-label{display:inline-block;font-size:12px;line-height:1.4;padding:7px 12px;border-radius:30px;background:#f0f4f6;color:#536570}.prepare>.pending-label{margin-left:auto;white-space:nowrap;background:#ffffffb3}.library{padding:62px 0}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:27px}.section-heading .eyebrow{margin-bottom:10px}.section-heading h2{margin:0}.section-note{font-size:13px;color:var(--muted);margin:0}.section-description{color:var(--muted);max-width:730px;margin-top:-8px;margin-bottom:28px}.books-layout{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}.featured-book{display:flex;align-items:center;gap:30px;border:1px solid #bcd7e8;background:#f3f9fe;border-radius:var(--radius);padding:30px;transition:border-color .15s}.featured-book:hover{border-color:var(--blue-deep)}.featured-book>img{width:142px;flex-shrink:0;box-shadow:4px 6px 15px #183a4b19;border-radius:3px}.featured-book .eyebrow{font-size:9px;letter-spacing:1.4px;margin-bottom:13px}.featured-book h3{font-size:28px;margin-bottom:14px}.featured-book h3 span{color:var(--blue-deep)}.featured-book p:not(.eyebrow){font-size:14px;color:var(--muted);margin-bottom:22px}.featured-book .button{font-size:13px;padding:12px 15px;min-height:46px;gap:15px}.future-books{display:grid;grid-template-columns:1fr 1fr;gap:13px;align-content:start}.future-book{display:flex;align-items:center;gap:16px;padding:19px;border:1px solid var(--line);border-radius:16px;background:#fff}.future-book>span{display:grid;place-items:center;font-size:34px;font-weight:650;background:var(--cream);color:#836b21;border-radius:9px;width:48px;height:61px}.future-book h3{font-size:17px;margin:0 0 5px}.future-book p{font-size:12px;color:var(--muted);margin:0}.future-note{grid-column:1/-1;font-size:12px;color:var(--muted);margin:0;padding:1px 4px}.how{padding:35px 0;border-block:1px solid var(--line);display:grid;grid-template-columns:1fr 3fr;gap:32px;align-items:center}.how h2{font-size:22px;margin:0}.how ol{padding:0;margin:0;list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.how li{display:flex;gap:13px}.how li span{color:var(--blue-deep);font-size:12px;padding-top:3px}.how p{font-size:14px;margin:0}.author{padding:55px 0;display:flex;align-items:center;gap:22px}.author-mark{width:65px;height:65px;border-radius:50%;display:grid;place-items:center;background:var(--cream);color:#8c732c;font-size:21px;flex-shrink:0}.author .eyebrow{font-size:9px;margin-bottom:7px}.author h2{font-size:25px;margin-bottom:8px}.author p:last-child{font-size:14px;color:var(--muted);margin:0}.author .author-aside{font-size:13px!important;margin-left:auto!important;padding-left:25px;border-left:1px solid var(--line)}footer{padding:26px 0 32px;border-top:1px solid var(--line);display:flex;align-items:center;gap:30px;color:var(--muted);font-size:12px}footer>span:last-child{margin-left:auto}.brand-footer{font-size:17px;font-weight:650;color:var(--ink)}.back{display:inline-block;font-size:14px;color:var(--muted);padding:12px 0;margin:20px 0}.book-hero{background:var(--blue);border-radius:24px;padding:38px 55px;display:flex;justify-content:space-between;align-items:center;gap:30px}.book-hero h1{font-size:51px;margin-bottom:19px}.book-hero p:not(.eyebrow){font-size:23px;line-height:1.4;margin-bottom:17px}.book-hero-note{font-size:14px;color:var(--muted)}.book-hero img{width:145px;box-shadow:6px 10px 20px #25557921;transform:rotate(5deg);border-radius:3px}.section-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:22px}.section-nav>a{display:flex;align-items:center;gap:15px;padding:20px;border:1px solid var(--line);border-radius:17px}.section-nav>a:hover{background:var(--cream);border-color:#e5ce85}.section-nav .round-icon{width:43px;height:43px;background:#f2f8fc;border-radius:13px}.section-nav .round-icon svg{width:24px}.section-nav small{display:block;font-size:10px;color:var(--muted);margin-bottom:5px}.section-nav strong{display:block;font-size:15px;line-height:1.3;font-weight:600}.section-nav>a>svg{width:18px;margin-left:auto;color:var(--blue-deep)}.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.video-card{overflow:hidden;border:1px solid var(--line);border-radius:18px;background:white}.video-card.available{border-color:#a8c8dc;transition:box-shadow .2s,transform .2s}.video-card.available:hover{transform:translateY(-3px);box-shadow:0 8px 20px #24475812}.card-image{aspect-ratio:1.7;background:#eef6fb;overflow:hidden}.card-image img{width:100%;height:100%;object-fit:cover}.card-copy{padding:21px 23px}.card-meta{font-size:11px;color:var(--muted);margin-bottom:9px}.card-copy h3{font-size:22px;margin-bottom:6px}.card-subtitle{font-size:13px;color:var(--muted);margin-bottom:22px}.watch{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:600;color:#1a5d83}.watch svg{width:28px;height:28px;background:var(--yellow);padding:5px;border-radius:50%;color:var(--ink)}.video-placeholder{height:100%;display:grid;place-items:center;background:var(--blue)}.video-placeholder svg{width:50px;height:50px;color:var(--blue-deep)}.shared-note{font-size:13px;color:var(--muted);margin:20px 0 0}.sound-section{display:flex;align-items:center;gap:40px;background:var(--cream);padding:36px 42px;border-radius:var(--radius);margin:0 0 24px}.sound-letter{font-size:94px;line-height:1;font-weight:750;color:#b79325;width:100px;text-align:center;flex-shrink:0}.sound-section .eyebrow{color:#816a26;margin-bottom:12px}.sound-section p:not(.eyebrow){font-size:15px;max-width:640px;color:var(--muted);margin-bottom:21px}.sound-section .pending-label{background:#fff}.audio-section{display:flex;align-items:center;gap:28px;background:#f2f8fc;border-radius:var(--radius);padding:36px;margin-bottom:30px}.audio-section .eyebrow{margin-bottom:10px}.audio-section p:not(.eyebrow){font-size:15px;color:var(--muted);margin-bottom:18px}.audio-section>.pending-label{margin-left:auto;white-space:nowrap;background:#fff}.text-link{display:inline-flex;align-items:center;gap:15px;font-size:14px;font-weight:600;color:var(--blue-deep);padding:5px 0;border-bottom:1px solid #9bbccc}.text-link svg{width:19px}.book-hero~.prepare{margin-bottom:50px}.page-intro{padding-top:55px}.page-intro h1{font-size:45px}.page-intro>p:last-child{color:var(--muted)}.page-intro .back{margin-top:0}.empty{padding:65px 0 85px;text-align:center}.empty .round-icon{margin:0 auto 23px;background:var(--blue)}.empty p{color:var(--muted)}.empty .button{margin-top:10px}.lesson-page{max-width:960px;margin:auto;padding-bottom:60px}.lesson-page h1{font-size:42px;letter-spacing:-1.5px}.page-badge{display:inline-block;background:var(--blue);border-radius:30px;padding:8px 15px;font-size:13px;margin-bottom:26px}.player-wrap{aspect-ratio:16/9;background:#202d34;border-radius:18px;overflow:hidden}.player-wrap video{display:block;width:100%;height:100%;object-fit:contain}.instruction{background:var(--cream);border-radius:18px;padding:27px 30px;margin-top:26px}.instruction h2{font-size:22px}.instruction p{margin:0;font-size:16px}.lesson-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;font-size:12px;color:var(--muted)}audio{width:100%;margin:25px 0}.audio-item{display:block;padding:22px;border-bottom:1px solid var(--line)}.video-error{color:#8a3930;font-size:14px}.video-error button{background:none;border:0;border-bottom:1px solid currentColor;color:inherit;padding:5px;cursor:pointer}[hidden]{display:none!important}.skip{position:absolute;left:20px;top:-100px;background:white;padding:12px;z-index:20}.skip:focus{top:10px}a:focus-visible,button:focus-visible,video:focus-visible{outline:3px solid #226b95;outline-offset:5px}
@media(max-width:1050px){h1{font-size:49px}.hero{gap:20px}.hero-art{min-height:400px}.art-circle{width:320px;height:320px}.hero-cover{width:230px}.books-layout{grid-template-columns:1fr}.future-books{grid-template-columns:repeat(4,1fr)}.featured-book{gap:40px}.future-book{padding:16px;gap:12px}.future-book>span{width:40px;height:52px;font-size:28px}.section-nav>a{padding:16px;gap:10px}.section-nav .round-icon{display:none}.section-nav strong{font-size:14px}.video-grid{gap:16px}.card-copy{padding:18px}.card-copy h3{font-size:20px}.author-aside{display:none}.audio-section>.pending-label{white-space:normal}}
@media(max-width:760px){.header,main,footer{width:calc(100% - 40px)}.header{flex-wrap:wrap;padding:22px 0 12px;gap:19px}.brand{font-size:21px}.header nav{width:100%;justify-content:space-between}.header nav a{flex:1;text-align:center;padding:10px 8px;font-size:13px}.hero{grid-template-columns:1fr;gap:22px;padding:36px 0}.hero h1{font-size:43px;letter-spacing:-1.8px}.hero-description{font-size:23px}.hero-note{font-size:15px}.hero-copy>.button{width:100%}.hero-art{min-height:320px}.hero-cover{width:195px}.art-circle{width:285px;height:285px}.art-label{left:7%;bottom:0;font-size:12px;padding:10px 16px}.art-spark{right:6%;top:0;font-size:46px}.prepare{flex-wrap:wrap;gap:15px;padding:23px}.prepare>.round-icon{width:42px;height:42px;border-radius:12px}.prepare>div{flex:1;min-width:180px}.prepare h2{font-size:20px}.prepare>.pending-label{margin:0 0 0 57px}.prepare .eyebrow{font-size:8px;letter-spacing:1px}.prepare p:last-child{font-size:13px}.library{padding:40px 0}.section-heading{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:23px}h2{font-size:27px}.section-heading h2{font-size:27px}.eyebrow{font-size:9px;letter-spacing:1.3px}.books-layout{gap:18px}.featured-book{padding:22px;gap:22px}.featured-book>img{width:104px}.featured-book h3{font-size:23px}.featured-book p:not(.eyebrow){font-size:13px;margin-bottom:17px}.featured-book p br{display:none}.featured-book .eyebrow{font-size:8px;letter-spacing:1px}.featured-book .button{font-size:12px;gap:9px;padding:10px 12px}.featured-book .button svg{width:16px}.future-books{grid-template-columns:1fr 1fr}.future-book{padding:17px}.how{grid-template-columns:1fr;gap:24px;padding:28px 0}.how h2 br{display:none}.how h2{font-size:23px}.how ol{grid-template-columns:1fr;gap:19px}.how li{align-items:center;gap:18px}.how li span{width:25px}.how p br{display:none}.author{padding:35px 0;align-items:flex-start;gap:16px}.author-mark{width:48px;height:48px;font-size:17px}.author h2{font-size:22px}.author p:last-child{font-size:13px}.author p br{display:none}footer{flex-wrap:wrap;gap:9px 20px;padding:23px 0;font-size:11px}footer>span:last-child{margin:0;width:100%}.back{margin:12px 0;font-size:13px}.book-hero{padding:27px 24px;gap:15px}.book-hero h1{font-size:35px;letter-spacing:-1.3px;margin-bottom:14px}.book-hero .eyebrow{font-size:8px;letter-spacing:1px}.book-hero p:not(.eyebrow){font-size:18px;margin-bottom:12px}.book-hero-note{font-size:12px}.book-hero img{width:100px}.section-nav{grid-template-columns:1fr;gap:10px;margin-top:18px}.section-nav>a{padding:14px 18px;gap:15px}.section-nav .round-icon{display:grid;width:39px;height:39px}.section-nav strong{font-size:15px}.section-nav small{display:none}.video-grid{grid-template-columns:1fr 1fr;gap:13px}.card-copy{padding:16px}.card-copy h3{font-size:19px}.card-subtitle{font-size:12px;margin-bottom:16px}.card-meta{font-size:10px}.watch{font-size:12px}.watch svg{width:24px;height:24px}.sound-section{gap:20px;padding:27px 23px}.sound-letter{font-size:68px;width:50px}.sound-section h2{font-size:25px}.sound-section .eyebrow{font-size:8px}.sound-section p:not(.eyebrow){font-size:14px}.audio-section{gap:17px;padding:25px;flex-wrap:wrap}.audio-section>.round-icon{width:43px;height:43px}.audio-section>div{flex:1;min-width:200px}.audio-section>.pending-label{margin:0 0 0 60px}.audio-section h2{font-size:25px}.audio-section p:not(.eyebrow){font-size:14px}.book-hero~.prepare{margin-bottom:35px}.page-intro{padding-top:33px}.page-intro h1{font-size:36px;letter-spacing:-1.4px}.page-intro p{font-size:15px}.lesson-page h1{font-size:32px;letter-spacing:-1px}.lesson-page .eyebrow{font-size:8px}.page-badge{font-size:11px;padding:8px 11px}.player-wrap{border-radius:12px}.instruction{padding:22px}.instruction h2{font-size:20px}.instruction p{font-size:14px}.lesson-bottom{flex-direction:column;gap:15px}.empty h2{font-size:26px}.empty p{font-size:14px}}
@media(max-width:440px){.video-grid{grid-template-columns:1fr}.card-image{aspect-ratio:1.9}.card-copy{padding:20px}.card-copy h3{font-size:23px}.card-meta{font-size:11px}.card-subtitle{font-size:13px}.watch{font-size:14px}.featured-book{gap:17px;padding:20px 16px}.featured-book>img{width:88px}.featured-book h3{font-size:21px}.featured-book .button{padding:10px;font-size:11px}.book-hero{position:relative;padding:25px 22px}.book-hero>div{position:relative;z-index:1}.book-hero img{width:77px;align-self:flex-start;margin-top:26px}.book-hero h1{font-size:33px;white-space:nowrap}.book-hero .eyebrow{max-width:200px}.book-hero-note{display:block;max-width:200px}.book-hero p:not(.eyebrow){font-size:17px}.sound-letter{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.books-layout>*{min-width:0}.featured-book>div{min-width:0}.future-book{min-width:0}.future-book>span{flex-shrink:0}
@media(max-width:360px){.book-hero img{display:none}.hero h1{font-size:38px}.hero-art{min-height:310px}.art-circle{width:260px;height:260px}.featured-book>img{width:72px}.featured-book{gap:13px;padding:20px 13px}.featured-book .button{white-space:normal;font-size:11px;gap:5px}.featured-book .button svg{display:none}.future-book{padding:13px;gap:10px}.future-book>span{width:32px;height:44px;font-size:25px}.future-book h3{font-size:15px}.future-book p{font-size:11px}.audio-section>div{min-width:0;flex-basis:170px}.prepare>div{min-width:0;flex-basis:150px}.prepare>.pending-label{margin-left:0}}

/* Preparation comes before the workbook sections. */
.book-hero + .prepare{margin-top:22px;margin-bottom:0}.book-hero ~ .audio-section{margin-bottom:50px}
@media(max-width:760px){.book-hero + .prepare{margin-top:18px;margin-bottom:0}.book-hero ~ .audio-section{margin-bottom:35px}}
/* A workbook is a self-contained parent-facing section. */
.book-context{font-size:13px;color:var(--muted);margin:27px 0 22px}.welcome{padding:70px 0 55px;max-width:850px}.welcome-description{font-size:21px;color:var(--muted);line-height:1.5}.qr-help{display:flex;align-items:center;gap:22px;padding:30px;background:var(--blue);border-radius:var(--radius);margin-top:32px}.qr-help h2{font-size:23px;margin-bottom:10px}.qr-help p{font-size:15px;color:var(--muted);margin:0}
@media(max-width:760px){.book-context{margin:22px 0 18px}.welcome{padding:38px 0}.welcome h1{font-size:39px;letter-spacing:-1.5px}.welcome-description{font-size:18px}.welcome-description br,.qr-help br{display:none}.qr-help{align-items:flex-start;gap:16px;padding:23px}.qr-help>.round-icon{width:43px;height:43px}.qr-help h2{font-size:21px}.qr-help p{font-size:14px}.header nav a{font-size:12px;padding:10px 6px}}
/* Audio recordings are addressed by exercise name, independent of pagination. */
.audio-help{background:var(--blue);border-radius:18px;padding:24px 28px;max-width:850px;margin:26px 0}.audio-help p{margin:0 0 8px}.audio-help p:last-child{margin:0;color:var(--muted)}.audio-search{margin:30px 0}.audio-search label{display:block;font-weight:650;margin-bottom:9px}.audio-search input{display:block;width:100%;max-width:650px;border:1px solid #a8c8dc;border-radius:12px;padding:15px 17px;font:inherit;background:#fff;color:var(--ink)}.audio-search input:focus-visible,audio:focus-visible{outline:3px solid var(--blue-deep);outline-offset:3px}.audio-search p{font-size:13px;color:var(--muted);margin:10px 0}.audio-groups{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:30px 0 50px;align-items:start}.audio-group{border:1px solid var(--line);border-radius:18px;padding:24px;min-width:0}.audio-group h2{font-size:22px;margin-bottom:16px;overflow-wrap:anywhere}.audio-links{display:grid;gap:9px}.audio-choice{display:flex;align-items:center;gap:13px;background:#f3f8fc;border-radius:12px;padding:13px 15px;font-size:15px;min-width:0}.audio-choice:hover{background:var(--cream)}.audio-choice .round-icon{width:38px;height:38px;border-radius:11px}.audio-choice .round-icon svg{width:22px}.audio-choice>span:nth-child(2){flex:1;min-width:0;overflow-wrap:anywhere}.audio-choice small{display:block;font-size:12px;color:var(--muted);margin-top:3px}.audio-choice>svg{width:19px}.audio-player{background:var(--blue);padding:30px;border-radius:22px;text-align:center}.audio-player>.round-icon{margin:0 auto 15px}.audio-player>p{font-size:19px;font-weight:600}.audio-player audio{display:block;min-height:54px;margin:20px 0;width:100%}.audio-player .button{border:0;cursor:pointer}.audio-player .button:hover{background:#ffda66}.audio-player .audio-error{font-size:14px;font-weight:400;color:#8a3930}.audio-error button{font:inherit;color:inherit;background:none;border:0;text-decoration:underline;cursor:pointer}.related-recordings{margin-top:30px}.related-recordings h2{font-size:22px}.audio-related{display:inline-block;border:1px solid var(--line);border-radius:12px;padding:13px 17px;margin:0 8px 10px 0;color:var(--blue-deep)}.audio-related:hover{background:var(--blue)}.audio-no-results{padding:25px 0 60px;color:var(--muted)}
@media(max-width:760px){.audio-groups{grid-template-columns:1fr;gap:15px}.audio-group{padding:20px}.audio-group h2{font-size:22px}.audio-help{padding:22px;font-size:14px}.audio-player{padding:22px 14px}.audio-player>.button{font-size:14px}.audio-lesson h1{overflow-wrap:anywhere}.audio-choice{padding:12px;gap:10px}.audio-choice .round-icon{width:33px;height:33px}.audio-choice>svg{width:17px}}