:root{--paper:#f2e6c9;--ink:#23241e;--red:#a73524;--gold:#d5a347;--muted:#786f5b}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Georgia,serif;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' opacity='.065' filter='url(%23n)'/%3E%3C/svg%3E")}button,input,textarea,select{font:inherit}button,a,input,textarea,select{touch-action:manipulation}button{cursor:pointer;background:transparent;border:1px solid var(--ink);padding:11px 17px;font-family:Arial,sans-serif;font-size:13px;font-weight:bold;border-radius:2px;color:inherit}button:hover{background:var(--ink);color:var(--paper)}button:disabled{opacity:.4;cursor:default}button.active,.primary{background:var(--red);border-color:var(--red);color:var(--paper)}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--gold);outline-offset:3px}header{display:flex;align-items:center;justify-content:space-between;padding:22px 5vw;border-bottom:3px solid var(--ink);gap:20px}.brand{font-family:Impact,'Arial Narrow',sans-serif;font-size:26px;color:var(--ink);text-decoration:none}.brand i{color:var(--red);font-style:normal}nav{display:flex;gap:8px}header>span,.eyebrow,footer,.meta{font:11px/1.5 Arial,sans-serif;text-transform:uppercase;letter-spacing:1.5px}.hero{display:grid;grid-template-columns:1fr .8fr;min-height:580px;border-bottom:2px solid}.hero-copy{padding:65px 6vw 40px}.eyebrow{color:var(--red);font-weight:bold}.hero h1{font:clamp(56px,7vw,105px)/.95 Impact,'Arial Narrow',sans-serif;letter-spacing:-2px;margin:23px 0}.hero h1 em{color:var(--red);font-style:normal}.hero p{max-width:480px;font-size:19px;line-height:1.65}.hero-art{background-image:url('assets/art-direction.webp');background-size:300% 100%;background-position:left center;min-height:550px;border-left:4px solid var(--ink)}.section{padding:48px 6vw}.section h2,.reader h1{font:44px/1.08 Impact,'Arial Narrow',sans-serif;margin:12px 0 25px}.labs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.lab-card{text-align:left;min-height:165px;border:2px solid;padding:23px;background:#f5ebd7}.lab-card small{color:var(--red);font:11px Arial;letter-spacing:1px}.lab-card strong{display:block;font:27px Georgia;margin:14px 0 9px}.lab-card span{font:14px/1.5 Georgia;font-weight:normal}.lab-card:hover small{color:var(--gold)}.lab{margin:40px auto;padding:35px;max-width:1050px;border:3px double var(--ink);background:#f8efdc}.lab h1{font:48px Impact;margin:10px 0 20px}.lab p{line-height:1.6;max-width:750px}.row{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.choices{display:flex;flex-wrap:wrap;gap:10px;margin:25px 0}.feedback{padding:18px;background:#e8ddc3;border-left:4px solid var(--gold);min-height:58px;line-height:1.5}.feedback.good{border-color:#435c37}.fret-scroll{overflow-x:auto;margin:25px 0}.fretboard{display:grid;grid-template-columns:42px repeat(13,minmax(40px,1fr));min-width:640px;gap:3px}.fretboard button{padding:9px 2px;background:linear-gradient(transparent 48%,#968875 49%,#968875 51%,transparent 52%);border:1px solid #aaa08a;min-height:44px}.fretboard button.selected{background:var(--red);color:white}.fretboard small{align-self:center;text-align:center}.note-name{font:12px Arial}.progression{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}.slot{min-width:110px;min-height:90px;border:2px dashed var(--muted);display:flex;flex-direction:column;justify-content:center;align-items:center;background:#ece0c5}.slot button{border:0;font:25px Georgia}.slot small{font:10px Arial;margin:5px}.reader-layout{display:grid;grid-template-columns:260px 1fr}.sidebar{border-right:2px solid;padding:26px 18px}.sidebar button{display:block;text-align:left;width:100%;margin-bottom:8px;border:0}.sidebar label{display:block;font:12px Arial;margin:15px 0}.sidebar input{padding:12px;width:100%;background:#fff8e7;border:1px solid}.reader{max-width:1000px;padding:42px 5vw;min-height:650px}.reader p{font-size:17px;line-height:1.7}.lesson{border-top:2px solid;padding:15px 0}.lesson summary{font:20px Georgia;cursor:pointer}.lesson h3{margin-top:25px}.reader textarea{width:100%;min-height:145px;border:1px solid var(--muted);padding:18px;background:repeating-linear-gradient(#fff8e7,#fff8e7 29px,#e1d5b9 30px);line-height:30px;resize:vertical}.activity-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:25px 0}.activity-list button{text-align:left;display:flex;gap:14px;align-items:center}.activity-list span{color:var(--red);font:22px Impact}.activity-list .done{border-left:5px solid #526344}.art-banner{height:230px;background-image:url('assets/art-direction.webp');background-size:300% auto;background-position:50% 58%;margin:25px 0;border:2px solid;filter:grayscale(1)}.hint,.answer{padding:18px;border:1px solid;margin:15px 0;line-height:1.6}.shapes{display:flex;flex-wrap:wrap;gap:15px;margin:25px 0}.shape{background:#fff7e5;padding:12px;border:1px solid #b9ac91;text-align:center;max-width:190px}.shape svg{width:160px;height:180px}.shape button{display:block;width:100%}.data-grid{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.data-grid span{padding:10px;border:1px solid}.back{border:0;padding-left:0;text-decoration:underline}.transport{position:sticky;bottom:0;background:#24231e;color:#f5e9cd;display:flex;align-items:center;flex-wrap:wrap;gap:22px;padding:14px 5vw;font:12px Arial;border-top:3px solid var(--gold)}.transport button{border-color:#a99c81}.transport label{display:flex;align-items:center;gap:10px}.transport #sound-status{margin-left:auto;max-width:300px}.transport input[type=range]{width:110px;accent-color:#d5a347}footer{padding:30px 5vw;display:flex;justify-content:space-between;align-items:center;gap:15px;flex-wrap:wrap;border-top:2px solid}.import{cursor:pointer;text-decoration:underline}.quiet{color:var(--muted);font-size:13px!important}select{padding:12px;background:var(--paper)}.project-bars{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:25px 0}.project-bars label{display:grid;gap:8px;font:12px Arial}.project-bars select{width:100%}[hidden]{display:none!important}@media(max-width:800px){header{flex-wrap:wrap}.hero{grid-template-columns:1fr}.hero-art{min-height:430px;max-width:430px;width:100%;margin:auto;border:0}.hero-copy{padding:35px 6vw}.hero h1{font-size:65px}.labs{grid-template-columns:1fr 1fr}.reader-layout{display:block}.sidebar{border:0;border-bottom:2px solid;display:flex;gap:8px;overflow-x:auto}.sidebar button{min-width:150px}.sidebar label{min-width:170px}.reader{padding:25px 6vw}.lab{margin:20px 12px;padding:22px}.project-bars{grid-template-columns:1fr 1fr}.transport{gap:10px}.transport #sound-status{display:none}}@media(max-width:470px){.labs,.activity-list{grid-template-columns:1fr}.hero-art{min-height:350px}.lab h1{font-size:37px}header{padding:16px}nav button{padding:10px}.reader h1{font-size:36px}}
/* The printed cover is the entrance. Object regions remain real keyboard buttons. */
body.cover-home{background:#111411;overflow-x:hidden}.cover-home>header,.cover-home>footer,.cover-home>.transport{display:none}.cover-stage{min-height:100svh;position:relative;display:grid;place-items:center;background:#111411}.cover-art{position:relative;width:min(100vw,92.39svh);height:min(108.24vw,100svh);background:url('assets/art-direction.webp') left center/300% 100% no-repeat;isolation:isolate;box-shadow:0 0 100px #000}.cover-stage:before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse at center,#8b55242b,transparent 65%);pointer-events:none}.object{position:absolute;border:0!important;background:transparent!important;padding:0;color:#f7e7bd!important;z-index:3;border-radius:30%;transition:filter .3s}.object span{position:absolute;left:50%;top:50%;transform:translate(-50%,-35%);min-width:180px;padding:13px 17px;background:#151a17f5;border:1px solid #c78e39;box-shadow:5px 5px 0 #0008;font:italic 23px Georgia;opacity:0;pointer-events:none;transition:.22s;white-space:nowrap;z-index:8}.object small{font:9px Arial;letter-spacing:1.8px}.object:hover span,.object:focus-visible span{opacity:1;transform:translate(-50%,-50%)}.object:focus-visible{outline:2px dashed #ffd580;outline-offset:5px}.door{left:31%;top:43%;width:26%;height:36%}.guitar{left:48%;top:29%;width:34%;height:68%;z-index:4}.amp{left:79%;top:57%;width:19%;height:23%}.records{left:82%;top:80%;width:17%;height:19%}.badge{left:8%;top:46%;width:19%;height:16%}.lamp-glow{position:absolute;left:73%;top:13%;width:23%;height:33%;background:radial-gradient(ellipse at 50% 0,#ffd38a65,transparent 65%);mix-blend-mode:screen;pointer-events:none;animation:lamplight 6s infinite}.door-glow{position:absolute;left:33%;top:44%;width:21%;height:34%;background:#efa528;mix-blend-mode:screen;opacity:.04;transition:opacity .4s;pointer-events:none}.cover-art:has(.door:hover) .door-glow,.cover-art:has(.door:focus-visible) .door-glow{opacity:.3}.guitar i{position:absolute;width:3%;height:53%;left:60%;top:1%;transform:rotate(12deg);background:repeating-linear-gradient(90deg,transparent 0 2px,#ffd88d 3px 4px);opacity:0}.guitar:hover i,.guitar:focus-visible i{opacity:.7;animation:strings .12s infinite alternate}.amp i{position:absolute;left:50%;top:9%;width:7px;height:7px;border-radius:50%;background:#ffc253;box-shadow:0 0 5px #ffa932;opacity:.45}.amp:hover i,.amp:focus-visible i{opacity:1;box-shadow:0 0 20px 8px #ffc25380}.records i{position:absolute;inset:15% 6% 5% 4%;border:2px dashed #e1b574;border-radius:50%;opacity:0}.records:hover i,.records:focus-visible i{opacity:.8;animation:record 4s linear infinite}.cover-tools{position:fixed;left:18px;bottom:18px;display:grid;gap:10px;z-index:5;color:#e9d4ab}.cover-tools>span{font:9px Arial;letter-spacing:1.4px;text-shadow:1px 1px #000}.cover-tools button{color:#ebd6ad;background:#151a17e8;border-color:#8e7348;font:italic 17px Georgia}.cover-tools button:hover{background:#a73524}#club-menu{background:#e7d5ad;color:#201f19;border:9px double #272820;box-shadow:12px 12px 0 #0009;width:min(580px,92vw);max-height:88svh;padding:30px;transform:rotate(-.7deg)}#club-menu::backdrop{background:#080b09bd;backdrop-filter:blur(4px)}#club-menu h1{font:clamp(35px,6vw,54px)/1 Impact,'Arial Narrow',sans-serif;margin:16px 0 25px}#close-menu{position:absolute;right:12px;top:9px;border:0;font-size:25px;padding:4px 10px}#menu-items>button{display:flex;gap:19px;align-items:center;width:100%;border:0;border-top:1px solid #9d8c68;border-radius:0;text-align:left;padding:17px 0}#menu-items b{font:28px Impact;color:#a73524}#menu-items span{font:19px Georgia}#menu-items small{display:block;font:12px/1.5 Arial;margin-top:6px}#menu-items em{margin-left:auto}#menu-items>button:hover{background:#d7bb83;color:#1f211b}.menu-foot{font:italic 15px Georgia}.cover-home #main{min-height:100svh}@keyframes lamplight{0%,100%{opacity:.65}45%{opacity:1}47%{opacity:.7}49%{opacity:.95}}@keyframes strings{to{transform:translateX(1px) rotate(12deg)}}@keyframes record{to{transform:rotate(360deg)}}@media(max-width:800px){.cover-tools{left:0;right:0;bottom:0;padding:10px 15px;background:linear-gradient(transparent,#101511 45%);display:flex;justify-content:space-between;align-items:center}.cover-tools>span{font-size:8px;max-width:115px;line-height:1.7}.cover-tools button{font-size:14px}.object span{min-width:130px;font-size:18px}.object small{font-size:8px}.amp span,.records span{left:auto;right:0;transform:translate(0,-35%)}.amp:hover span,.records:hover span,.amp:focus-visible span,.records:focus-visible span{transform:translate(0,-50%)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}
.lamp-glow{background:radial-gradient(ellipse at 50% 28%,#ffd38a55,transparent 68%);border-radius:50%}
/* Interior: a worn club poster above a practical, high-contrast music workbench. */
body:not(.cover-home){background-color:#161e1b;color:#eddfbf;background-image:repeating-linear-gradient(110deg,#ffffff03 0 1px,transparent 1px 5px)}body:not(.cover-home) header{background:#111814;border-bottom:1px solid #77694d;padding:18px 4vw}.brand{color:#efdfb9}.brand i{color:#d66342}header nav button{color:#d8c6a3;border-color:#645e49}header>span{color:#cfb27b}.lab{max-width:1220px;padding:0;margin:32px auto 50px;border:1px solid #7f7155;background:#eddfbf;color:#27271e;box-shadow:12px 15px 0 #0004}.room-poster{display:grid;grid-template-columns:1.5fr .7fr;min-height:275px;background:#ad3b27;color:#f3e2b9;border-bottom:7px solid #20271f;overflow:hidden}.poster-copy{padding:23px 40px 27px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='150'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.7' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' opacity='.16' filter='url(%23noise)'/%3E%3C/svg%3E")}.poster-copy .back{color:#f4ddaf;font:12px Arial;margin-bottom:19px}.poster-copy .eyebrow{color:#f4d492;font-size:11px;letter-spacing:3px}.lab .poster-copy h1{font-size:clamp(42px,5vw,72px);text-transform:uppercase;line-height:.98;letter-spacing:-1px;margin:13px 0 16px;max-width:650px}.poster-copy p{font:italic 18px Georgia;margin:0}.poster-art{position:relative;background:url('assets/art-direction.webp') left center/300% 100%;border-left:5px solid #20271f;filter:sepia(.15)}.session-stamp{position:absolute;bottom:17px;right:17px;display:grid;place-items:center;background:#dfb75e;color:#242b23;border:5px double #252b23;border-radius:50%;width:110px;height:110px;font:60px/1 Impact;transform:rotate(9deg);box-shadow:4px 4px #0006}.session-stamp small{font:9px Arial;letter-spacing:2px;margin-top:-14px}.session-strip{display:flex;justify-content:space-between;gap:15px;background:#202b25;color:#dbcbab;padding:16px 34px;font:10px Arial;letter-spacing:1.4px}.session-strip b{color:#d5ac55;font:20px Impact;margin-right:8px}.workbench{padding:30px 38px 35px;background-image:repeating-linear-gradient(15deg,#584c2504 0 2px,transparent 2px 5px)}.challenge-brief h2{font:28px Georgia;margin:9px 0}.brief-label{font:10px Arial;letter-spacing:2px;color:#94412a;font-weight:bold}.challenge-brief p{font-size:16px;margin:10px 0 18px}.fret-legend{display:flex;gap:20px;align-items:center;flex-wrap:wrap;font:11px Arial;border-top:1px solid #baa880;padding-top:13px}.fret-legend span:first-child{color:#785411;font-weight:bold}.fret-legend output{margin-left:auto;color:#803b28;font-weight:bold}.fret-scroll{background:#222c28;padding:20px 12px 18px;border:6px solid #423d2a;border-radius:7px;box-shadow:inset 0 0 30px #0008,0 7px 0 #b3a07a;margin:24px 0 28px}.fretboard{grid-template-columns:74px repeat(13,minmax(43px,1fr));gap:0;min-width:700px;align-items:center}.fretboard small{color:#d9cbaa;font:11px Arial}.fretboard .fret-number{height:35px;position:relative}.fret-number.inlay:after{content:'•';position:absolute;bottom:0;left:0;right:0;color:#d4b370}.fretboard .string-label{font:bold 11px Arial;text-align:left;padding-left:5px}.string-label em{display:block;font:7px Arial;letter-spacing:1px;margin-top:5px;color:#a8afa3}.fretboard .target-string,.target-string em{color:#f1c45a}.fretboard button{position:relative;height:47px;border:0;border-right:3px solid #8d9687;border-radius:0;background:linear-gradient(transparent 47%,#899185 48%,#b6bbaa 51%,transparent 53%);color:#e9d4a1;min-width:0;padding:0}.fretboard button[data-string="5"]{background:linear-gradient(transparent 47%,#e4b352 48%,#e4b352 52%,transparent 54%)}.fretboard button[data-fret$=",0"]{border-right:6px solid #e2d7bb;background-color:#111a15}.fretboard button:hover{background-color:#566052}.fretboard .note-name{display:grid;place-items:center;margin:auto;position:relative;z-index:1;width:28px;height:28px;border-radius:50%;font:bold 15px Arial}.fretboard button[data-string="5"] .note-name{background:#29352b;border:1px solid #a88a45;color:#e6c478}.fretboard button.selected{background-color:#b9984020}.fretboard button.selected .note-name{background:#e3b653;color:#242a20;border:2px solid #ffe0a0;box-shadow:0 0 12px #d4a64655}.fretboard button:focus-visible{z-index:2;outline-offset:-4px}.workbench .choices button,.workbench>#lab-body>button{border:1px solid #796d50;padding:15px 22px;box-shadow:0 3px 0 #ac9870;font-size:14px;background:#f7edcf}.workbench .choices button:hover{background:#28382c;color:#f0dfb9}.workbench .choices .primary,.workbench #check{background:#a73b27;color:#fff0cc;border-color:#883320}.feedback{position:relative;background:#ded1ae;border:0;border-left:5px solid #ae8235;padding:20px 22px;font-size:16px;line-height:1.65}.feedback:before{content:'FROM THE BANDSTAND';display:block;font:bold 9px Arial;letter-spacing:2px;color:#766747;margin-bottom:8px}.feedback.good{background:#d2ddc0;border-color:#466844}.workbench>.row{border-top:1px solid #b9aa84;padding-top:22px;justify-content:space-between}.workbench>.row button{border:0;text-decoration:underline;font-size:12px}.workbench .slot{background:#23362b;color:#f1dbb2;border:2px solid #9f895a;min-width:170px;min-height:125px;box-shadow:5px 5px #c0ad84}.slot small{color:#d4ad61;font:24px Georgia}.slot button{color:#eddbb5}.workbench .project-bars label{background:#24352a;color:#e5d0a2;padding:17px;border-top:5px solid #ba8c42}.project-bars select{margin-top:8px}.transport{background:#111a15;border-color:#8f7543;box-shadow:0 -8px 30px #0003}.transport button{background:#a73b27;border-color:#c3774c}.transport input[type=range]{accent-color:#d9ae52}footer{color:#c1b18f;border-color:#605b46}footer button{color:#dfca9e;border-color:#8e7955}.reader-layout{max-width:1400px;margin:32px auto;background:#eddfbf;color:#25281f;border:1px solid #806c46;box-shadow:10px 10px #0004}.sidebar{background:#24372c;color:#d9c7a0;border:0}.sidebar button{padding:16px 12px;border-bottom:1px solid #52614d;font-size:12px;font-weight:normal;line-height:1.5}.sidebar button.active{background:#b4442c;color:#fff0c8}.sidebar label{color:#d5b06a;letter-spacing:1px}.sidebar input{margin-top:10px;color:#25281f}.reader h1{font-size:52px;text-transform:uppercase;color:#923b27}.reader .eyebrow{letter-spacing:2px}.reader .art-banner{border:6px double #27362a;filter:sepia(.35);height:210px}.reader .activity-list{gap:0;border-top:2px solid #303b29}.activity-list button{border:0;border-bottom:1px solid #aa9c7d;border-radius:0;min-height:75px;padding:17px 12px;font:16px Georgia}.activity-list button:hover{background:#253a2c;color:#f2dcae}.activity-list span{font-size:33px;min-width:40px}.reader .lesson{background:#e3d3af;border:1px solid #b4a17a;padding:20px;margin:20px 0}.reader .lesson summary{font-weight:bold}.reader .hint,.reader .answer{background:#d7dfbd;border-color:#77885b}.reader .shape{background:#f7edcf;border:2px solid #98815c;box-shadow:4px 4px #d4c19a}.reader textarea{border:2px solid #8c7a52}.reader .choices button{padding:14px 18px}.reader h3{color:#923b27}.reader .meta{padding:12px 0;border-bottom:1px solid #b9a986;color:#645536}@media(max-width:800px){.lab{margin:16px 10px}.room-poster{grid-template-columns:1fr 30%;min-height:220px}.poster-copy{padding:22px}.lab .poster-copy h1{font-size:42px}.poster-copy p{font-size:15px}.session-stamp{width:72px;height:72px;font-size:36px;right:8px;bottom:14px}.session-stamp small{font-size:6px;letter-spacing:1px;margin-top:-8px}.session-strip{padding:13px 17px;gap:9px;font-size:8px;letter-spacing:.5px}.session-strip b{display:block;margin-bottom:5px}.workbench{padding:23px 17px}.fret-legend{gap:12px}.fret-legend output{margin-left:0}.reader-layout{margin:15px 10px}.reader h1{font-size:38px}.reader .activity-list{grid-template-columns:1fr}.sidebar{border-bottom:4px solid #ae833d}.reader .art-banner{height:180px}.transport{position:sticky}.workbench .choices{gap:12px}.workbench .choices button{padding:13px 16px}.challenge-brief h2{font-size:25px}}@media(max-width:480px){.poster-art{display:none}.room-poster{grid-template-columns:1fr}.poster-copy{padding:23px}.session-strip{font-size:7px}.workbench .slot{min-width:110px}.reader-layout .sidebar button{min-width:155px}.transport label{font-size:10px}.fret-scroll:before{content:'SLIDE SIDEWAYS TO SEE ALL 12 FRETS →';display:block;font:8px Arial;letter-spacing:1px;color:#cbb989;margin:0 0 12px}}

/* Final project: visible musical requirements and roomy controls. */
.workbench label[for="substitution-bar"],.workbench label[for="substitution-reason"]{display:block;margin:24px 0 10px;font-weight:bold}
#substitution-bar{max-width:100%;padding:12px;background:#f7edcf;border:2px solid #8c7a52}
#substitution-reason{display:block;width:100%;min-height:130px;padding:16px;background:#f7edcf;border:2px solid #8c7a52;line-height:1.6}
.project-checklist{list-style:none;padding:0;margin:25px 0}
.project-checklist li{padding:12px 15px;border-bottom:1px solid #b4a17a}
.project-checklist b{display:inline-block;min-width:25px}
.project-checklist .passed{background:#d7dfbd;color:#253a2c}
.project-checklist .pending{background:#efe0bf;color:#71331f}
/* Shared printed edition: the page artwork is used unchanged in both formats. */
body:not(.cover-home){background:#171b18;color:#f5efdf;background-image:url('assets/art-direction.webp');background-size:1200px auto;background-attachment:fixed}
body:not(.cover-home) header{background:#141814ef;backdrop-filter:blur(8px)}
.lab{border:0;max-width:1280px;background:#fff;box-shadow:0 15px 50px #0008}
.room-poster{grid-template-columns:1fr 350px;background:#fff;color:#191919;border-bottom:0;min-height:350px}
.poster-copy{padding:40px 52px;background:#fff url('assets/shared-ink-border.png') center/100% 100% no-repeat;display:flex;flex-direction:column;justify-content:center}
.poster-copy .back{color:#444;align-self:flex-start;border:0;padding:0;margin-bottom:32px}
.poster-copy .eyebrow{background:#191919;color:#fff;padding:9px 12px;font:10px Arial;letter-spacing:1.4px;align-self:flex-start}
.lab .poster-copy h1{font-family:Impact,'Arial Narrow',sans-serif;font-size:clamp(42px,5vw,70px);margin:18px 0;line-height:1.02}
.poster-copy p{color:#39352e;font:italic 19px/1.5 Georgia}
.poster-art{margin:0;padding:18px 22px 10px;background:#e7e0cc;filter:none;border-left:1px solid #ccc3ab;display:flex;flex-direction:column;justify-content:center}
.poster-art img{width:100%;height:auto;display:block;box-shadow:3px 5px 12px #0003;transform:rotate(1.5deg)}
.poster-art figcaption{font:9px Arial;text-align:center;letter-spacing:1.4px;margin-top:15px;color:#5e5340}
.session-strip{background:#171717;color:#fff;padding:18px 45px}.session-strip b{color:#eee}
.workbench{background:#fff url('assets/shared-ink-border.png') center/100% 100% no-repeat;padding:48px 8% 60px;color:#171717}
.challenge-brief h2{font:bold 27px/1.25 Arial}.brief-label{color:#a73524}.challenge-brief p{font:16px/1.7 Arial}
.fret-scroll{border-radius:0;background:#f5f1e7;border:2px solid #222;box-shadow:5px 5px 0 #d6ceb9;padding:22px 12px}
.fretboard small,.fretboard .string-label{color:#333}.string-label em{color:#777}.fretboard .target-string,.target-string em{color:#a73524}
.fretboard button{background:linear-gradient(transparent 47%,#777 48%,#777 51%,transparent 53%);border-color:#444;color:#222}
.fretboard button[data-string="5"]{background:linear-gradient(transparent 47%,#a73524 48%,#a73524 52%,transparent 54%)}
.fretboard button[data-fret$=",0"]{background-color:#e4dfd0;border-right:6px solid #222}.fretboard button:hover{background-color:#ddd5c0}
.fretboard button[data-string="5"] .note-name{color:#8f3021;background:#fff;border-color:#b97a68}.fretboard button.selected .note-name{background:#a73524;color:#fff;border-color:#a73524;box-shadow:none}
.feedback{background:#f0ede3;border:1px solid #b9b2a1;border-left:5px solid #222}.feedback:before{color:#222}
.reader-layout{max-width:1500px;grid-template-columns:220px minmax(0,1fr);border:0;background:#fff;margin:30px auto 60px}
.sidebar{background:#171b18}.sidebar button{border-color:#4d5148}.sidebar button.active{background:#a73524}.reader{padding:30px;background:#e8e1cf}
.reader>.eyebrow{font:10px Arial;letter-spacing:1.8px;margin:0 0 20px;color:#302d25}
.edition-spread{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:start}
.printed-page{margin:0;position:sticky;top:20px}.printed-page img{display:block;width:100%;height:auto;box-shadow:3px 8px 18px #0003}
.printed-page figcaption{display:flex;justify-content:space-between;font:9px Arial;letter-spacing:1.5px;padding:15px 5px;color:#524a3a}
.live-page{min-width:0;padding:38px 32px 45px;background:#fff url('assets/shared-ink-border.png') center/100% 100% no-repeat;color:#171717;box-shadow:3px 8px 18px #0002}
.reader .live-page h1{font:clamp(30px,3vw,46px)/1.05 Impact,'Arial Narrow',sans-serif;color:#171717;margin:15px 0 20px}
.live-page p{font:15px/1.75 Arial}.reader .meta{font:11px/1.6 Arial;text-transform:none;letter-spacing:0}.reader .lesson{background:#f2efe5;border:1px solid #b9b2a2;padding:18px}.reader h3{font:bold 16px Arial;color:#222}
.reader .activity-list{grid-template-columns:1fr}.activity-list button{font:15px/1.5 Arial}.activity-list span{font:30px Impact;color:#a73524}
.reader .shape{background:#fff;border:1px solid #222;box-shadow:3px 3px #ddd6c5}.reader .choices{gap:10px;flex-wrap:wrap}.reader .choices button{padding:13px;font-size:12px}
.reader textarea{font:15px/1.6 Arial;background:#faf8f1;width:100%;min-height:150px}.reader .hint,.reader .answer{font:15px/1.7 Arial}
@media(max-width:1100px){.reader-layout{grid-template-columns:170px minmax(0,1fr)}.edition-spread{grid-template-columns:1fr}.printed-page{position:static;max-width:560px;margin:auto}.live-page{padding:40px}.room-poster{grid-template-columns:1fr 30%}.poster-copy{padding:40px}}
@media(max-width:800px){.reader-layout{display:block;margin:12px}.sidebar{display:flex;overflow:auto;gap:0;padding:10px}.sidebar label{min-width:165px;padding:8px}.sidebar button{min-width:145px}.reader{padding:18px}.edition-spread{gap:20px}.live-page{padding:35px 28px}.room-poster{grid-template-columns:1fr 32%}.poster-copy{padding:30px}.poster-art{padding:13px}.lab .poster-copy h1{font-size:40px}.poster-copy p{font-size:16px}.session-strip{padding:15px 22px}.workbench{padding:35px 8% 45px}.printed-page figcaption{line-height:1.5}}
@media(max-width:480px){.room-poster{grid-template-columns:1fr}.poster-art{display:flex;width:100%;padding:22px 25%;border-left:0;border-bottom:1px solid #b9b2a2}.poster-art figcaption{font-size:8px}.poster-copy{padding:32px 9%}.live-page{padding:32px 9%}.reader .live-page h1{font-size:34px}.workbench .choices button{font-size:12px}}
/* Artwork stays in the margins, with a clean centre for musical thinking. */
.poster-copy,.workbench,.live-page{background:#fff;border:28px solid transparent;border-image:url('assets/shared-ink-border.png') 220 stretch}
.poster-copy{padding:22px}.workbench{padding:24px 4% 35px}.live-page{padding:20px}
@media(max-width:800px){.poster-copy,.workbench,.live-page{border-width:20px}.poster-copy{padding:18px}.workbench{padding:20px 3% 30px}.live-page{padding:18px}}
body:not(.cover-home){background-image:none;background-color:#1a1e1a}
.reader{max-width:none;width:100%}
.reader .live-page label{font:bold 13px Arial;display:block;margin:18px 0 8px}
.reader .live-page .lesson summary{font:bold 14px Arial}