@layer reset, base, components, responsive;
@layer reset { *,*::before,*::after{box-sizing:border-box} body,h1,h2,h3,p{margin:0} button,input,select{font:inherit} button,a,input,select{-webkit-tap-highlight-color:transparent} img,svg{max-width:100%;display:block} button{cursor:pointer} [hidden]{display:none!important} }
@layer base {
:root{--paper:#f8f7f0;--ink:#193f35;--green:#194e42;--muted:#5c6c62;--line:#daddcf;--lime:#d8edb8;--white:#fffef9;--sans:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--serif:Georgia,"Times New Roman",serif}
html{scroll-behavior:smooth;scroll-padding-top:100px}body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}button{color:inherit}button:disabled{opacity:.5;cursor:default}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #b85a30;outline-offset:5px}::selection{background:var(--lime);color:var(--ink)}h1,h2,h3{line-height:1.12;font-weight:400}h1,h2{font-family:var(--serif);letter-spacing:-.045em}h1{font-size:clamp(3.1rem,6.2vw,6.5rem)}h2{font-size:clamp(2.2rem,4vw,3.8rem)}p{color:var(--muted)}.wrap{max-width:1280px;width:calc(100% - 104px);margin-inline:auto}.eyebrow{display:flex;align-items:center;gap:10px;font-size:.7rem;font-weight:650;letter-spacing:.15em;text-transform:uppercase;color:var(--green)}.eyebrow::before{content:'';height:7px;width:7px;flex:none;background:#84a267;border-radius:50%}.arrow{display:inline-block;font-family:var(--sans);font-size:1.2em}.skip-link{position:fixed;left:20px;top:-100px;background:var(--ink);color:white;padding:12px 20px;z-index:20}.skip-link:focus{top:15px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}button{border:0;background:none}.text-link{font-size:.85rem;border-bottom:1px solid currentColor;padding-bottom:3px}.pill{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:30px;padding:5px 12px;font-size:.69rem;white-space:nowrap}.pill.whiteboard{background:#e8efdf;border-color:#d5e0c8;color:#355627}.pill.paper{background:#f1ece3;color:#64584b;border-color:#e3dcd0}.btn{display:inline-flex;justify-content:center;align-items:center;gap:24px;padding:15px 23px;border-radius:7px;background:var(--green);color:var(--white);font-size:.88rem;font-weight:550;border:1px solid var(--green);transition:background .2s,transform .2s}.btn:hover{background:#28624f;transform:translateY(-2px)}.btn.secondary{background:transparent;color:var(--ink);border-color:#b6c1b0}.btn.secondary:hover{background:#e9eddf}.btn.light{background:var(--lime);color:var(--ink);border-color:var(--lime)}.btn.small{padding:10px 16px;font-size:.78rem}
}
@layer components {
.site-header{height:95px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:24px}.brand{display:flex;align-items:center;gap:12px;font-size:1.2rem;font-weight:650;letter-spacing:-.04em}.brand img{width:39px;height:39px}.brand .byline{font-size:.6rem;font-weight:400;letter-spacing:.1em;text-transform:uppercase;display:block;color:var(--muted);margin-top:-1px}.site-header nav{display:flex;align-items:center;gap:32px;font-size:.79rem}.nav-link{padding:8px 0;color:var(--muted)}.nav-link[aria-current=page]{color:var(--ink);box-shadow:0 1px 0 var(--ink)}.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:70px;align-items:center;padding:85px 0 70px}.hero .eyebrow{margin-bottom:26px}.hero h1{max-width:650px}.hero h1 em{color:#557b56;font-weight:400}.hero .intro{font-size:1.04rem;max-width:440px;line-height:1.8;margin:27px 0 28px}.hero-actions{display:flex;align-items:center;gap:27px;flex-wrap:wrap}.hero-note{display:flex;gap:9px;align-items:center;font-size:.7rem;margin-top:24px;color:var(--muted)}.hero-note i{width:5px;height:5px;background:#839d71;border-radius:50%}.hero-art{position:relative;padding:40px 10px 30px 30px}.grid-paper{position:absolute;inset:-5px -20px 0 0;background-image:linear-gradient(#d8e0cf 1px,transparent 1px),linear-gradient(90deg,#d8e0cf 1px,transparent 1px);background-size:27px 27px;mask-image:radial-gradient(ellipse at center,black 35%,transparent 73%);opacity:.75;z-index:-1}.hero-video{transform:rotate(-3deg);box-shadow:0 12px 35px #193f3512;border:10px solid var(--white);border-bottom-width:0;background:var(--white);position:relative;display:block;width:100%;border-radius:4px;text-align:left;padding:0}.hero-video img{aspect-ratio:16/9;width:100%;object-fit:cover}.hero-caption{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:17px 14px 20px}.hero-caption strong{display:block;font-size:.9rem;font-weight:550}.hero-caption small{font-size:.66rem;color:var(--muted);display:block;margin-top:3px}.play-round{width:44px;height:44px;border-radius:50%;background:var(--lime);display:grid;place-items:center;flex:none}.play-round::before{content:'';width:0;height:0;border-top:6px solid transparent;border-bottom:6px solid transparent;border-left:9px solid var(--green);margin-left:3px}.note-card{position:absolute;right:-1px;top:-6px;transform:rotate(7deg);padding:17px 22px;background:#e7eccf;box-shadow:0 4px 10px #193f3510;font-size:.76rem;line-height:1.5;max-width:185px}.note-card span{font-family:var(--serif);font-style:italic;font-size:1.35rem}.scribble{position:absolute;bottom:-30px;left:45px;width:245px;transform:rotate(-4deg);font-family:var(--serif);font-size:1.1rem;font-style:italic;color:#6c805e}.scribble svg{width:65px;position:absolute;right:-20px;top:-28px}.stats{display:grid;grid-template-columns:1fr 1fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:25px 0;margin-top:30px}.stat{display:flex;align-items:center;gap:16px;padding:0 30px;border-left:1px solid var(--line)}.stat:first-child{padding-left:0;border:0}.stat strong{font-family:var(--serif);font-size:2.5rem;font-weight:400;letter-spacing:-.05em}.stat span{font-size:.74rem;color:var(--muted);max-width:130px;line-height:1.5}.section{padding:80px 0}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:35px;margin-bottom:35px}.section-heading .eyebrow{margin-bottom:16px}.section-heading p{font-size:.9rem;max-width:330px}.subject-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.subject-card{padding:28px 28px 23px;border:1px solid var(--line);background:var(--white);border-radius:10px;transition:border-color .2s,transform .2s;position:relative;display:flex;flex-direction:column;min-height:230px}.subject-card:hover{transform:translateY(-4px);border-color:#8ca17c}.subject-card .symbol{font-family:var(--serif);font-size:2rem;height:55px;line-height:1;display:block;color:#4c7251}.subject-card h3{font-size:1.08rem;font-weight:550;letter-spacing:-.03em;margin:10px 0}.subject-card p{font-size:.77rem;max-width:275px;line-height:1.65;margin-bottom:20px}.subject-card .card-bottom{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:.68rem;color:var(--muted)}.subject-card .arrow{color:var(--green);font-size:1.5rem;line-height:1}.subject-card.sage{background:#f0f3e9}.subject-card.peach{background:#f7f0e8}.subject-card.lavender{background:#f0eef4}.subject-card.yellow{background:#f7f3df}.subject-card.explorations{background:transparent;border-style:dashed}.about-panel{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px;padding:58px;background:#e9eddf;border-radius:14px}.about-panel .eyebrow{margin-bottom:22px}.about-panel h2{max-width:330px}.about-copy p{font-size:.92rem;line-height:1.85;margin-bottom:18px}.about-copy p:last-child{margin-bottom:0}.about-copy strong{color:var(--ink);font-weight:550}.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:50px;margin-top:40px}.how-step{border-top:1px solid var(--line);padding-top:24px}.how-step .number{font-family:var(--serif);font-style:italic;color:#80956d;font-size:1.3rem}.how-step h3{font-size:1rem;font-weight:550;margin:13px 0}.how-step p{font-size:.83rem;line-height:1.8}.closing{background:var(--green);border-radius:14px;padding:48px 55px;display:flex;align-items:center;justify-content:space-between;gap:35px;color:var(--paper);margin-bottom:70px}.closing h2{font-size:2.8rem}.closing p{color:#c2d4c3;font-size:.88rem;margin-top:13px}.site-footer{border-top:1px solid var(--line);padding:29px 0 35px;display:flex;justify-content:space-between;gap:25px;align-items:center}.site-footer .brand{font-size:.9rem}.site-footer .brand img{width:30px;height:30px}.footer-links{display:flex;gap:24px;font-size:.7rem;color:var(--muted)}.footer-note{font-size:.65rem;color:var(--muted)}
/* Library */
.library-intro{padding:58px 0 32px}.library-intro h1{font-size:clamp(3rem,5vw,4.7rem);margin:18px 0 16px}.library-intro p{font-size:.91rem;max-width:620px}.library-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:42px;padding-bottom:80px;align-items:start}.subject-nav{position:sticky;top:28px;padding-top:17px}.subject-nav h2{font:650 .66rem var(--sans);text-transform:uppercase;letter-spacing:.15em;color:var(--muted);margin-bottom:18px}.subject-nav a{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border-radius:6px;margin-left:-12px;gap:8px;font-size:.76rem;line-height:1.5}.subject-nav a span{font-size:.65rem;color:var(--muted)}.subject-nav a:hover{background:#eceee3}.subject-nav a[aria-current=true]{background:var(--green);color:white}.subject-nav a[aria-current=true] span{color:#d2e0c7}.sidebar-note{border-top:1px solid var(--line);margin-top:22px;padding-top:20px;font-size:.69rem;line-height:1.8;color:var(--muted)}.sidebar-note b{display:block;font-weight:550;color:var(--ink);margin-bottom:6px}.search-box{position:relative}.search-box svg{position:absolute;left:17px;top:18px;width:19px;height:19px;color:#7a8977}.search-box input{width:100%;border:1px solid #c7cfbd;border-radius:8px;background:var(--white);color:var(--ink);padding:15px 45px;appearance:none;font-size:.85rem}.search-box input::placeholder{color:#73816f}.clear-search{position:absolute;right:7px;top:7px;padding:8px 13px;color:var(--muted);font-size:1rem}.filter-bar{display:flex;gap:16px;align-items:end;flex-wrap:wrap;padding:20px 0 25px;border-bottom:1px solid var(--line)}.filter-field{display:flex;flex-direction:column;gap:5px;flex:1;min-width:145px}.filter-field label{font-size:.65rem;color:var(--muted)}.filter-field select{background:var(--paper);border:1px solid #c7cfbd;border-radius:6px;color:var(--ink);width:100%;padding:9px 25px 9px 10px;font-size:.75rem;min-height:40px}.reset-filters{font-size:.7rem;text-decoration:underline;min-height:40px;padding:6px 2px}.result-summary{display:flex;align-items:center;justify-content:space-between;gap:15px;min-height:64px;font-size:.72rem;color:var(--muted)}.result-summary strong{font-weight:550;color:var(--ink)}.order-note{font-size:.64rem}.category-section{margin-bottom:42px;scroll-margin-top:25px}.category-head{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:18px}.category-head h2{font-family:var(--sans);font-size:1.25rem;font-weight:550;letter-spacing:-.035em}.category-head small{font-size:.68rem;color:var(--muted)}.format-heading{display:flex;align-items:center;gap:12px;margin:20px 0 14px;font-size:.63rem;font-weight:500;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}.format-heading::after{content:'';height:1px;flex:1;background:var(--line)}.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px 17px}.lesson-card{display:block;width:100%;text-align:left;padding:0;border-radius:8px;background:none}.thumb{position:relative;overflow:hidden;border-radius:7px;background:#e1e5d8;border:1px solid #d8ddcf}.thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s}.lesson-card:hover .thumb img{transform:scale(1.04)}.thumb .mini-play{position:absolute;right:10px;bottom:10px;background:#fffdf1eb;border-radius:50%;width:30px;height:30px;display:grid;place-items:center;font-size:.7rem;padding-left:2px}.lesson-meta{display:flex;align-items:center;gap:7px;flex-wrap:wrap;font-size:.62rem;color:var(--muted);margin:11px 0 7px}.lesson-meta .pill{padding:2px 7px;font-size:.55rem}.lesson-card h3{font:500 .81rem/1.5 var(--sans);letter-spacing:-.015em;overflow-wrap:anywhere}.lesson-card .topic-label{font-size:.64rem;color:var(--muted);display:block;margin-top:5px}.show-more{display:block;width:100%;margin-top:22px;padding:11px;border:1px solid var(--line);border-radius:7px;font-size:.74rem}.show-more:hover{background:#e9eddf}.empty-state{padding:60px 30px;text-align:center;border:1px dashed #b8c5ad;border-radius:10px;margin-top:15px}.empty-state h2{font-size:2rem;margin-bottom:15px}.empty-state p{font-size:.84rem;max-width:380px;margin:auto auto 25px}.loading-note{padding:35px 0;color:var(--muted);font-size:.85rem}.library-error{padding:30px;background:#f6e5d8;border-radius:10px}.library-error a{text-decoration:underline}.mobile-subject{display:none}.site-footer.library-footer{margin-top:0}
/* Accessible native lesson dialog */
dialog{border:0;background:var(--paper);color:var(--ink);border-radius:14px;padding:0;width:min(950px,calc(100% - 32px));max-height:calc(100dvh - 40px);box-shadow:0 20px 100px #0004;overscroll-behavior:contain}dialog::backdrop{background:#102b25c9;backdrop-filter:blur(5px)}body:has(dialog[open]){overflow:hidden}.dialog-top{display:flex;justify-content:space-between;align-items:center;padding:15px 22px;gap:20px}.dialog-top .eyebrow{font-size:.6rem}.close-dialog{border:1px solid var(--line);width:32px;height:32px;display:grid;place-items:center;border-radius:50%;font-size:1.2rem}.player{aspect-ratio:16/9;background:#132f27;width:100%}.player iframe{width:100%;height:100%;border:0;display:block}.dialog-body{padding:25px 32px 30px}.dialog-body h2{font-size:1.8rem;letter-spacing:-.035em;line-height:1.25;margin:13px 0}.dialog-body p{font-size:.76rem;line-height:1.7}.dialog-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:22px 0}.dialog-subject{font-size:.7rem;text-decoration:underline}.related-row{border-top:1px solid var(--line);padding-top:16px;display:flex;justify-content:space-between;gap:20px;align-items:center}.related-row span{font-size:.65rem;color:var(--muted)}.related-row button{font-size:.75rem;text-align:right;max-width:70%}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);padding:12px 23px;background:var(--ink);color:white;border-radius:8px;font-size:.8rem;z-index:30;box-shadow:0 5px 20px #0002}
}
@layer responsive {
@media(min-width:1450px){.hero{gap:100px}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.hero{gap:38px;padding-top:65px}.hero-art{padding-left:0}.note-card{right:-10px;top:0;font-size:.65rem;max-width:150px}.note-card span{font-size:1.1rem}.hero-caption{padding:14px 8px}.hero-caption strong{font-size:.75rem}.hero-caption small{font-size:.6rem}.hero-actions{gap:20px}.hero-actions .btn{padding-inline:18px}.library-layout{gap:28px;grid-template-columns:190px minmax(0,1fr)}.video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.about-panel{gap:40px;padding:40px}.subject-card{padding:23px}.stat{padding-inline:20px}}
@media(max-width:760px){.wrap{width:calc(100% - 40px)}.site-header{height:80px}.site-header nav{gap:20px}.site-header nav .btn{display:none}.brand{font-size:1.05rem}.brand img{width:34px;height:34px}.brand .byline{font-size:.51rem}.nav-link{font-size:.7rem}.hero{grid-template-columns:1fr;padding:48px 0 60px;gap:50px}.hero h1{font-size:clamp(3.4rem,10vw,5.5rem);max-width:600px}.hero .intro{font-size:.95rem;max-width:490px;margin-top:22px}.hero-art{width:min(500px,100%);margin:auto;padding:30px 14px 30px}.note-card{right:0;top:-5px;max-width:165px}.scribble{font-size:.9rem;bottom:-12px;left:30px}.hero-caption strong{font-size:.9rem}.hero-caption small{font-size:.66rem}.stats{margin-top:15px;padding:22px 0}.stat{flex-direction:column;align-items:flex-start;gap:4px;padding-inline:18px}.stat strong{font-size:2.2rem}.stat span{font-size:.64rem}.section{padding:55px 0}.section-heading{align-items:start;flex-direction:column;gap:16px;margin-bottom:26px}.subject-grid{grid-template-columns:repeat(2,1fr);gap:12px}.subject-card{padding:22px 18px;min-height:225px}.subject-card h3{font-size:.96rem}.subject-card p{font-size:.71rem}.subject-card .symbol{font-size:1.8rem;height:42px}.about-panel{grid-template-columns:1fr;padding:30px;gap:24px}.about-panel h2{max-width:none}.about-copy p{font-size:.85rem}.how-grid{gap:25px;margin-top:30px}.how-step h3{font-size:.88rem}.how-step p{font-size:.75rem}.closing{padding:35px;align-items:start;flex-direction:column;gap:25px;margin-bottom:45px}.closing h2{font-size:2.4rem}.site-footer{flex-wrap:wrap;gap:20px}.footer-links{gap:20px}.footer-note{width:100%}.library-intro{padding:40px 0 27px}.library-layout{display:block}.subject-nav{display:none}.mobile-subject{display:flex}.filter-bar{gap:12px}.filter-field{min-width:calc(50% - 12px)}.result-summary{align-items:start;padding:18px 0;min-height:70px;flex-direction:column;gap:5px}.category-head h2{font-size:1.2rem}.category-head small{font-size:.6rem}.video-grid{gap:22px 13px}.lesson-card h3{font-size:.76rem}.lesson-meta{font-size:.56rem}.lesson-meta .pill{font-size:.51rem}.lesson-card .topic-label{font-size:.59rem}.dialog-body{padding:20px}.dialog-body h2{font-size:1.5rem}.dialog-top{padding:12px 16px}.dialog-top .eyebrow{font-size:.52rem}.dialog-actions{gap:9px}.dialog-actions .btn{font-size:.65rem;padding:9px 12px;gap:10px}}
@media(max-width:420px){.site-header nav{gap:14px}.brand .byline{display:none}.brand{font-size:.95rem}.subject-grid{grid-template-columns:1fr}.subject-card{min-height:185px}.subject-card p{max-width:none}.how-grid{grid-template-columns:1fr;gap:22px}.how-step{padding-top:18px}.how-step p{font-size:.82rem}.hero-actions{gap:20px}.hero-actions .text-link{font-size:.78rem}.video-grid{grid-template-columns:1fr}.lesson-card h3{font-size:.9rem}.lesson-meta{font-size:.65rem}.lesson-card .topic-label{font-size:.68rem}.lesson-meta .pill{font-size:.6rem}.stat{padding-inline:12px}.stat span{font-size:.6rem}.related-row{align-items:start;flex-direction:column;gap:10px}.related-row button{max-width:100%;text-align:left}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
}

@layer components {
.search-box input::-webkit-search-cancel-button{-webkit-appearance:none}
.duration-badge{position:absolute;bottom:9px;left:9px;font-size:.6rem;line-height:1;padding:5px 6px;border-radius:4px;background:#172f29dc;color:white;font-variant-numeric:tabular-nums}
.dialog-top{position:sticky;top:0;background:var(--paper);z-index:1}
}
@layer responsive { @media(min-width:761px) and (max-height:800px){dialog .player{max-height:45dvh}} }
@layer components { .hero-video img,.thumb img{height:auto;aspect-ratio:16/9} }