#manual-dialog{width:min(480px,calc(100% - 40px));max-height:85dvh;overflow:auto;background:var(--panel);color:var(--ivory);border:1px solid var(--border);border-radius:18px;padding:18px}
#manual-dialog::backdrop{background:rgba(0,0,0,.65)}
#manual-dialog input,#manual-dialog select,#admin-unlock input,.payment-order input:not([type=checkbox]),.payment-order textarea{box-sizing:border-box;min-width:0;width:100%;margin-block:8px}
#manual-order,#manual-reference-form,#admin-unlock{display:grid;gap:12px}
#manual-order[hidden],#manual-reference-form[hidden]{display:none}
#manual-code,#manual-recipient,#admin-audit li{overflow-wrap:anywhere}
.app-header{flex-wrap:wrap}
.payment-orders{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:16px}
.payment-order{padding:18px;border:1px solid var(--border);border-radius:8px;background:var(--panel);min-width:0;overflow-wrap:anywhere}
.payment-order label{display:block;margin-top:12px}
.payment-order button{margin:8px 8px 0 0}
.payment-order textarea{min-height:80px}
#admin-unlock{max-width:480px}
#admin-audit{padding-left:20px}
#admin-unlock input,.payment-order input:not([type=checkbox]),.payment-order textarea{font:inherit;color:var(--ivory);background:var(--panel-raised);border:1px solid var(--border);border-radius:8px;padding:12px;min-height:54px}
#admin-unlock input:focus-visible,.payment-order textarea:focus-visible,.payment-order input:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.manual-important { font-size: 1.05rem; padding: 10px 12px; border-radius: 10px; background: rgba(212, 175, 55, 0.16); }
#manual-qr-box { margin: 12px 0; text-align: center; }
#manual-qr { display: block; width: min(240px, 70vw); height: auto; margin: 0 auto 8px; background: #fff; border-radius: 12px; padding: 8px; }
#manual-qr-box figcaption { font-size: 0.9rem; margin-bottom: 8px; }
.manual-note { font-size: 0.85rem; opacity: 0.8; }
#qrph-dialog{width:min(480px,calc(100% - 40px));max-height:90dvh;overflow:auto;background:var(--panel);color:var(--ivory);border:1px solid var(--border);border-radius:18px;padding:18px}
#qrph-dialog::backdrop{background:rgba(0,0,0,.65)}
.qrph-plans{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:12px 0}
.qrph-plan{display:grid;gap:4px;padding:16px;border-radius:14px;text-align:left}
.qrph-plan span{font-size:1.4rem;font-weight:800}
.qrph-plan small{color:var(--amber)}
#qrph-qr{display:block;width:min(260px,72vw);height:auto;margin:8px auto;background:#fff;border-radius:12px;padding:8px}
/* ---- navigation + tools ---- */
.app-nav{display:flex;gap:4px;margin-right:auto;margin-left:18px}
.app-nav a{padding:8px 12px;border-radius:999px;color:var(--muted);font-weight:600;text-decoration:none}
.app-nav a[aria-current=true]{background:var(--panel-raised,rgba(255,255,255,.08));color:var(--ivory,inherit)}
body[data-view=library] .home-heading,body[data-view=library] .source-tabs,body[data-view=library] .source-panel{display:none}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr));gap:14px}
.tool-tile{display:grid;gap:6px;text-align:left;padding:18px;border-radius:16px;border:1px solid var(--border);background:var(--panel);color:inherit;text-decoration:none;font:inherit;cursor:pointer}
.tool-tile:hover{border-color:var(--amber,var(--accent))}
.tool-tile span{color:var(--muted);font-size:14px;line-height:1.5}
.tool-badge{font-style:normal;font-size:12px;font-weight:700;color:var(--ok,#7be2a6)}
.tool-badge.pro{color:var(--amber,#F4B23C)}
.tool-card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:20px;display:grid;gap:14px;max-width:760px}
.tool-card.locked{max-width:520px}
.metro-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.metro-row select{min-height:42px}
.tuner{text-align:center;justify-items:center}
.tuner-note{font-size:64px;font-weight:800}
.tuner-meter{position:relative;width:min(420px,100%);height:44px;border-radius:999px;background:var(--panel-raised,rgba(255,255,255,.06))}
.tuner-mark{position:absolute;left:50%;top:6px;bottom:6px;width:2px;background:var(--muted)}
.tuner-needle{position:absolute;left:50%;top:4px;width:6px;height:36px;margin-left:-3px;border-radius:3px;background:var(--amber,#F4B23C);transition:left .12s}
.tuner-needle.ok{background:var(--ok,#7be2a6)}
.metro{justify-items:center;text-align:center}
.metro-bpm{font-size:64px;font-weight:800;line-height:1}
.metro input[type=range]{width:min(420px,100%)}
.metro-dots{display:flex;gap:10px}
.metro-dots span{width:18px;height:18px;border-radius:50%;background:var(--panel-raised,rgba(255,255,255,.1));border:1px solid var(--border)}
.metro-dots span.first{border-color:var(--amber,#F4B23C)}
.metro-dots span.on{background:var(--accent)}
.metro-dots span.first.on{background:var(--amber,#F4B23C)}
.chord-view{display:grid;gap:10px;justify-items:center}
.chord-view .diagram{max-width:260px}
.tool-keys{width:min(420px,100%);margin:0 auto}
.fretboard-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.fretboard-svg{min-width:760px;width:100%;height:auto;color:var(--ivory,currentColor)}
.fret-note{cursor:pointer}
.key-chords{display:flex;flex-wrap:wrap;gap:8px}
.key-chord{display:grid;min-width:72px;padding:10px;border-radius:12px}
.key-chord small{color:var(--muted)}
.colour-list{display:grid;gap:8px}
.colour-row{display:grid;grid-template-columns:70px 1fr auto;gap:10px;align-items:center;padding:10px;border:1px solid var(--border);border-radius:12px}
.lesson p{line-height:1.6}
@media(max-width:760px){
  .app-nav{position:fixed;left:0;right:0;bottom:0;z-index:20;margin:0;justify-content:space-around;padding:8px 8px calc(8px + env(safe-area-inset-bottom));background:var(--panel);border-top:1px solid var(--border)}
  .app-nav a{flex:1;text-align:center}
  body{padding-bottom:72px}
  .colour-row{grid-template-columns:56px 1fr}
  .colour-row button{grid-column:1/-1}
}
body[data-view=library] .library-heading{margin-top:0}
body[data-view=library] .library-heading h2{font-size:30px}
/* ---- chord library / fretboard (app-style) ---- */
.segmented{display:flex;gap:4px;padding:4px;border:1px solid var(--border);border-radius:999px;background:var(--panel)}
.segmented button{flex:1;min-height:38px;border:0;border-radius:999px;background:transparent;color:var(--muted);font-weight:700}
.segmented button[aria-selected=true]{background:var(--panel-raised);color:var(--text)}
.seg-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.key-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin:14px 0}
.key-grid button{min-height:44px;border-radius:12px;background:var(--panel);border:1px solid var(--border);font-weight:700}
.key-grid button.on{background:var(--amber);color:#050A10;border-color:var(--amber)}
.lib-hint{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;font-size:14px}
.flat-toggle{display:flex;align-items:center;gap:8px;color:var(--muted);font-weight:700;white-space:nowrap}
.flat-toggle input{appearance:none;-webkit-appearance:none;width:44px;height:26px;border-radius:999px;background:var(--panel-raised);border:1px solid var(--border);position:relative;margin:0;cursor:pointer}
.flat-toggle input::after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:var(--ivory,#fff);transition:transform .2s}
.flat-toggle input:checked{background:var(--amber)}.flat-toggle input:checked::after{transform:translateX(18px)}
.chord-rows{display:grid;gap:10px}
.chord-row{display:grid;grid-template-columns:110px repeat(3,minmax(0,1fr));align-items:center;gap:8px;padding:10px;border:1px solid var(--border);border-radius:16px;background:var(--panel)}
.chord-row:has(.row-keys){grid-template-columns:110px minmax(0,1fr) auto}
.chord-name{display:grid;justify-items:start;gap:4px;background:transparent;border:0;text-align:left;padding:4px;min-height:0}
.chord-name strong{font-size:22px}.chord-name span{font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--muted);letter-spacing:.06em}
.chord-name em{font-style:normal;color:var(--muted)}
.shape-btn{display:flex;justify-content:center;background:transparent;border:0;padding:0;min-height:0}
.shape-btn.empty{visibility:hidden}
.chord-svg{color:var(--text)}
.row-keys .tool-keys,.inv-card .tool-keys{width:100%;max-width:520px}
.play-mini{min-height:38px;padding:0 14px;border-radius:999px}
.back-chords{min-height:34px;border-radius:999px;border:1px solid var(--border);padding:0 14px;background:transparent}
.detail-title{font-size:32px;margin:12px 0 4px}
.section-label{font-size:12px;letter-spacing:.1em;color:var(--muted);margin:22px 0 10px}
.inv-list{display:grid;gap:10px}
.inv-card{display:grid;gap:8px;padding:12px;border:1px solid var(--border);border-radius:16px;background:var(--panel)}
.inv-card.on{border-color:var(--amber)}
.inv-head{display:flex;gap:10px;align-items:baseline}.inv-head strong{font-size:18px}
.inv-shapes{display:flex;gap:10px;overflow-x:auto}
.all-shapes{display:grid;grid-template-columns:repeat(auto-fill,minmax(118px,1fr));gap:10px}
.scale-select{min-height:42px;border-radius:12px;margin-bottom:10px;color:var(--amber);font-weight:700;background:var(--panel);border:1px solid var(--border);padding:0 12px}
.fretboard-svg{min-width:1340px}
@media(max-width:760px){.chord-row{grid-template-columns:78px repeat(3,minmax(0,1fr));gap:4px;padding:8px}.chord-row:has(.row-keys){grid-template-columns:78px minmax(0,1fr) auto}.chord-name strong{font-size:19px}.key-grid{gap:6px}.lib-hint{font-size:12px}.fretboard-svg{min-width:1240px}}

/* Learn: the app's 11 lessons */
.lesson-list{display:grid;gap:10px;margin-top:14px}
.lesson-row{display:flex;align-items:center;gap:14px;text-align:left;padding:14px 16px;border:1px solid var(--border);border-radius:var(--radius-sm,12px);background:var(--panel);color:var(--text);box-shadow:none}
.lesson-row:hover{border-color:color-mix(in srgb,var(--amber) 60%,var(--border))}
.lesson-num{flex:none;width:34px;height:34px;line-height:34px;border-radius:50%;background:var(--glow);color:var(--amber);font-weight:800;text-align:center}
.lesson-copy{display:grid;gap:3px;flex:1;min-width:0}.lesson-copy span{color:var(--muted);font-size:13px;line-height:1.4}
.chev{color:var(--muted);font-size:22px}
.lesson-page{display:grid;gap:16px;margin-top:10px}
.lesson-title{margin:0;font-size:clamp(24px,3vw,32px)}
.lesson-step{display:grid;gap:12px;padding:18px;border:1px solid var(--border);border-radius:var(--radius,18px);background:var(--panel)}
.lesson-step h3{margin:0;font-size:12px;letter-spacing:.12em;color:var(--amber)}
.lesson-text{margin:0;line-height:1.6}
.lesson-step .piano-keyboard.learn-keys{max-width:640px;margin:4px 0 0;height:150px}
.piano-key{cursor:pointer}.piano-key.root{background:var(--amber)}
.root-picker{display:flex;flex-wrap:wrap;gap:6px}
.root-picker button,.chip-grid button{min-height:36px;min-width:46px;padding:0 10px;border-radius:999px;border:1px solid var(--border);background:var(--panel-raised);color:var(--text);box-shadow:none;font-weight:700}
.root-picker button.on,.chip-grid button.on{background:var(--amber);color:#050A10;border-color:var(--amber)}
.chip-grid{display:flex;flex-wrap:wrap;gap:6px}
.btn-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.big-name{margin:0;font-size:20px;font-weight:800}.big-chord{margin:0;font-size:44px;font-weight:800;color:var(--amber)}
.degree-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(92px,1fr));gap:8px}
.degree-grid button{display:grid;gap:2px;padding:10px;border:1px solid var(--border);background:var(--panel-raised);color:var(--text);box-shadow:none;text-align:center}
.degree-grid small{color:var(--amber);font-weight:800}.degree-grid span{color:var(--muted);font-size:11px}
.progression{display:grid;gap:8px;padding:12px;border-radius:var(--radius-sm,12px);background:var(--panel-raised)}
.prog-title{margin:0;font-weight:700;font-size:14px}
.prog-chips{display:flex;flex-wrap:wrap;gap:6px}
.prog-chips .chip{display:grid;gap:1px;min-height:40px;padding:6px 12px;border:1px solid var(--border);background:var(--panel);color:var(--text);box-shadow:none}
.prog-chips .chip.role{border-color:var(--amber)}.prog-chips small{color:var(--amber);font-size:10px}
.progression>button{justify-self:start;min-height:36px}
.inv-play{display:grid;gap:4px;text-align:left;padding:12px;border:1px solid var(--border);background:var(--panel-raised);color:var(--text);box-shadow:none}
.inv-play .piano-keyboard{max-width:520px;margin:4px 0 0;height:110px;pointer-events:none}
.inv-head{display:flex;gap:10px;align-items:baseline}.inv-head span:last-child{margin-left:auto;color:var(--amber)}
.check{display:grid;gap:10px}.check-prompt{margin:0;font-weight:700}
.check-row{display:flex;gap:10px;align-items:center}
.check-choices{display:flex;flex-wrap:wrap;gap:8px}
.check-choices button{min-width:110px;border:1px solid var(--border);background:var(--panel-raised);color:var(--text);box-shadow:none}
.check-choices .right{background:#1f8f4e;color:#fff;border-color:#1f8f4e}.check-choices .wrong{background:#b3261e;color:#fff;border-color:#b3261e}
.good{color:#3fbf72;margin:0;font-weight:700}.warn{color:#ff9f6b;margin:0;font-weight:700}
.level-label{margin:10px 0 0;font-size:12px;letter-spacing:.12em;color:var(--amber)}
.exercise-row{display:grid;gap:3px;text-align:left;padding:12px 16px;border:1px solid var(--border);background:var(--panel);color:var(--text);box-shadow:none}
.exercise-row span{color:var(--muted);font-size:13px}
.neck-wrap,.tab-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:10px}
.neck-svg{display:block;min-width:820px;width:100%;height:auto}
.tab-wrap{background:#fff;padding:8px}.tab-row{display:flex}.tab-bar svg{display:block}
.tempo{display:grid;gap:10px}.tempo-row{display:flex;gap:12px;align-items:center}.tempo-row input{flex:1}
.now-step{display:flex;gap:12px;align-items:center}.now-step .pick{font-size:28px;font-weight:800;min-width:24px}
.seg-row.single{grid-template-columns:1fr;max-width:360px;margin-top:6px}
.fret-cell{cursor:pointer}.fret-cell:hover{fill:rgb(244 178 60 / 10%)}
.finder{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin:16px 0;padding:16px 18px;border:1px solid var(--border);border-radius:var(--radius,18px);background:var(--panel)}
.finder-name{display:grid;gap:2px}.finder-name strong{font-size:34px;color:var(--amber);line-height:1.1}
@media(max-width:760px){.seg-row{grid-template-columns:1fr}.segmented button{padding:0 6px;font-size:14px}}