/* The main course keeps the next musical decision visible while the hands play. */
.main-top,.main-workspace,.main-practice,.main-practice>div{min-width:0}
.main-top,.main-workspace{--main-warm:#fff2e2;--main-orange:#ab5b2d;--main-edge:#b7c4b3}
.main-top{max-width:1140px;margin:8px auto 32px}
.main-hero{padding:clamp(24px,4vw,44px);border-color:#c4ccb8;background:linear-gradient(125deg,#fff9ee 0%,var(--panel) 68%);box-shadow:0 6px 24px #374a3510}
.main-hero h1{max-width:890px;font-size:clamp(28px,3.3vw,42px);line-height:1.4;letter-spacing:-.6px}
.main-hero>p{max-width:920px;font-size:16px;line-height:1.9}
.main-hero .main-lead{font-size:19px;font-weight:700;color:var(--green);margin-top:20px}
.main-hero .eyebrow{font-size:12px;letter-spacing:1.2px;color:var(--main-orange)}
.main-coach-intro,.main-session-welcome{border:0;background:transparent;padding:0}
.main-coach-intro{max-width:920px;margin-top:22px}
.main-session-welcome{margin:0 0 18px}
.main-coach-intro>span,.main-session-welcome>span{display:block;color:var(--main-orange);font-size:12px;line-height:1.5;font-weight:750}
.main-coach-intro>p,.main-session-welcome>p{font-size:15px;line-height:1.85;margin:5px 0 0;color:var(--ink)}
.main-thought-path{border-left:4px solid var(--green);background:#eaf0e3;padding:15px 18px;margin:22px 0;border-radius:0 10px 10px 0;font-weight:700;line-height:1.8}
.main-actions{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}
.main-actions button{min-height:52px;padding:12px 18px;white-space:normal;line-height:1.5}
.main-actions button.primary{min-height:56px}
.main-top button,.main-workspace button{transition:none;touch-action:manipulation}
.main-actions button,.main-heading-actions button,.main-transport button,.main-confidence button,.main-foundation-buttons button{border-radius:11px;border-width:2px;cursor:pointer}
.main-top button.primary,.main-workspace button.primary{background:var(--green);border-color:var(--green);color:#fffef8;box-shadow:0 3px 0 #163727}
.main-actions button.secondary,.main-heading-actions button,.main-transport button.secondary,.main-foundation-buttons button{border-color:var(--main-edge);background:var(--panel);color:var(--green);box-shadow:0 2px 0 #dde4d6}
.main-top button:focus-visible,.main-workspace button:not(.main-chord-card):not(.main-stage-button):focus-visible{outline:3px solid #277baa;outline-offset:3px}
.main-top button:active,.main-workspace button:active{box-shadow:inset 0 2px 5px #23382f30;transform:none}
.main-top button:disabled,.main-workspace button:disabled{border-style:dashed;border-color:#bac3b6;background:var(--soft);color:#647060;box-shadow:none;cursor:not-allowed;opacity:.65}
.main-small{font-size:12px!important;color:var(--muted);line-height:1.7!important;overflow-wrap:break-word}
.main-top>h2{font-size:25px;line-height:1.5;margin:28px 0 12px}
.main-session-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0 26px}
.main-session-card{display:grid;grid-template-columns:36px minmax(0,1fr) 20px;gap:12px;align-items:start;width:100%;min-height:144px;text-align:left;padding:18px;border:2px solid var(--main-edge);border-radius:14px;line-height:1.5;background:var(--panel);box-shadow:0 2px 0 #dce4d530}
.main-session-number{display:grid;place-items:center;width:36px;height:36px;border:1px solid #d4ba9c;border-radius:50%;color:var(--main-orange);background:var(--main-warm);font-size:15px;font-weight:750;font-variant-numeric:tabular-nums}
.main-session-title{display:block;font-size:17px;font-weight:750;line-height:1.5;margin-bottom:7px;overflow-wrap:break-word}
.main-session-goal{display:block;font-size:13px;font-weight:400;line-height:1.65;color:var(--muted)}
.main-session-card small{display:block;font-size:11px;font-weight:650;line-height:1.6;color:var(--green);margin-top:10px}
.main-session-arrow{align-self:center;font-size:28px;line-height:1;color:var(--green)}
.main-session-card[aria-current=step]{border-color:var(--green);background:var(--mint);box-shadow:inset 3px 0 0 var(--green)}
.main-session-card[aria-current=step] .main-session-number{background:var(--green);color:white;border-color:var(--green)}
.main-heading{display:flex;justify-content:space-between;align-items:end;gap:18px;margin:6px 0 18px}
.main-heading h1{font-size:clamp(25px,2.8vw,36px);line-height:1.4;letter-spacing:-.5px}
.main-heading .eyebrow{font-size:12px;margin-bottom:7px}
.main-heading>button{flex:none;white-space:nowrap}
.main-brief{display:grid;grid-template-columns:1fr 1fr 1fr;gap:22px;padding:23px;margin-bottom:18px}
.main-brief article{min-width:0}
.main-brief article+article{border-left:1px solid var(--line);padding-left:22px}
.main-brief h2{font-size:16px;line-height:1.5;color:var(--green);margin-bottom:8px}
.main-brief p{font-size:14px;line-height:1.8;margin:0;overflow-wrap:break-word}
.main-settings{margin:0 0 18px;font-size:13px}
.main-settings>summary{min-height:48px;padding:12px 14px;border:2px solid #99aa9d;border-radius:10px;background:var(--panel);color:var(--green);cursor:pointer;font-weight:650;line-height:1.5;touch-action:manipulation}
.main-settings[open]>summary{border-color:var(--green);background:var(--mint)}
.main-setting-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;margin:16px 0 12px}
.main-setting-grid label{display:flex;flex-direction:column;gap:7px;font-size:12px;font-weight:650;min-width:0}
.main-setting-grid .backing-style-choice small{font-size:11px;font-weight:400;line-height:1.5;color:var(--muted)}
.main-setting-grid select,.main-setting-grid input[type=number]{width:100%;min-width:0;min-height:48px;font-size:13px;padding:10px;border:2px solid #99aa9d;border-radius:9px;background:var(--panel);color:var(--ink)}
.main-setting-grid input[type=range]{height:48px;width:100%;cursor:pointer;accent-color:var(--green)}
.main-setting-grid :disabled{color:#778479;background:var(--soft);border-color:#c4ccc2;border-style:dashed;cursor:not-allowed}
.main-stage-status{margin:0 0 17px}
.main-stage-status>p{font-size:11px;line-height:1.5;color:var(--muted);margin:0 0 7px}
.main-stage-list{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:7px;list-style:none;margin:0;padding:0;min-width:0}
.main-stage-list li{min-width:0}
.main-stage-button{display:flex;align-items:center;gap:6px;width:100%;min-height:48px;padding:7px 6px;border:1px solid #99aa9d;border-bottom-width:3px;border-radius:8px;font-size:11px;line-height:1.4;color:var(--muted);background:var(--panel);text-align:left;cursor:pointer;touch-action:manipulation}
.main-stage-button[aria-current=step]{border-color:var(--green);font-weight:750;color:var(--green);background:var(--mint);box-shadow:inset 0 -2px 0 var(--green)}
.main-stage-label{min-width:0;overflow-wrap:break-word}
.main-stage-current{font-size:9px;white-space:nowrap;margin-left:auto;color:var(--green)}
.main-stage-current:empty{display:none}
.main-stage-button::before,.main-chord-card::before{content:none!important}
.main-stage-button:focus-visible,.main-chord-card:focus-visible{outline:3px solid #277baa;outline-offset:-3px;z-index:2}
.main-stage-button:active,.main-chord-card:active{background:#d8e7c9;box-shadow:inset 0 2px 5px #23382f38;transform:none}
.main-stage-dot{display:inline-grid;place-items:center;width:20px;height:20px;flex:none;background:var(--soft);border-radius:50%;font-size:10px}
.main-stage-button[aria-current=step] .main-stage-dot{background:var(--green);color:white}
.main-stage-done .main-stage-dot{color:var(--green);font-weight:800}
#main-transport{position:sticky;bottom:12px;z-index:12}
.main-transport{position:relative;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 15px;margin:16px 0 0;border:1px solid #bec9b8;border-radius:14px;background:var(--panel);box-shadow:0 4px 20px #23382f12}
.main-transport-main,.main-transport-tools{display:flex;gap:8px;min-width:0;align-items:center}
.main-transport-main{flex:1}
.main-transport button{min-height:52px;font-size:13px;line-height:1.4;white-space:normal;padding:11px 14px}
.main-transport button.primary{font-size:15px;min-height:56px}
.main-transport-tools button{font-size:12px}
.main-session-time{font-size:11px;line-height:1.5;font-variant-numeric:tabular-nums;color:var(--muted);max-width:90px;flex:none;text-align:right}
.main-hint-status{font-size:10px;color:var(--muted);line-height:1.4;flex-basis:100%}
.main-transport[data-has-volume=true]{flex-wrap:wrap}
.main-backing-volume{display:grid;grid-template-columns:145px minmax(0,1fr);align-items:center;gap:12px;flex-basis:100%;border-top:1px solid var(--line);padding-top:3px;min-width:0;cursor:pointer}
.main-backing-volume>span{font-size:12px;line-height:1.45;font-weight:650;color:var(--green)}
.main-backing-volume output{font-size:11px;font-weight:500;font-variant-numeric:tabular-nums;white-space:nowrap;color:var(--muted)}
.main-backing-volume input{display:block;width:100%;min-width:0;height:48px;margin:0;accent-color:var(--green);cursor:pointer;touch-action:pan-y}
.main-backing-volume input:focus-visible{outline:3px solid #277baa;outline-offset:2px;border-radius:5px}
.main-review{margin-top:20px;padding:26px;border-color:#c4ccb8;background:linear-gradient(130deg,#fff9ee,var(--panel) 55%)}
.main-review>.eyebrow{font-size:11px;letter-spacing:1px;color:var(--main-orange);margin-bottom:8px}
.main-review h2{font-size:26px;line-height:1.4}
.main-review>p{font-size:14px;line-height:1.8}
.main-review-checks{display:grid;gap:10px;margin:20px 0}
.main-review-checks>label{display:flex;align-items:center;gap:11px;padding:13px 15px;border:2px solid #a6b4a8;background:var(--panel);border-radius:10px;min-height:54px;font-size:14px;line-height:1.65;cursor:pointer}
.main-review-checks>label:has(input:checked){border-color:var(--green);background:var(--mint);font-weight:650}
.main-review-checks input{width:20px;height:20px;flex:none;accent-color:var(--green);cursor:pointer}
.main-review-checks>label:has(input:focus-visible){outline:3px solid #277baa;outline-offset:3px}
.main-confidence{border:0;margin:20px 0;padding:0;display:grid;gap:8px}
.main-confidence legend{font-size:16px;font-weight:750;margin-bottom:11px;padding:0;color:var(--green)}
.main-confidence button{text-align:left;font-size:14px;min-height:54px;line-height:1.6;padding:12px 15px}
.main-confidence button[aria-pressed=true]{border-color:var(--green);background:var(--mint);box-shadow:inset 3px 0 0 var(--green);font-weight:650}
.main-confidence button[aria-pressed=true]::before{content:none!important}
.main-selection-mark{display:inline-block;width:23px;font-weight:800;color:var(--green)}
.main-foundation-links{margin:24px 0 20px;padding-top:20px;border-top:1px solid var(--line)}
.main-foundation-links h2{font-size:19px;line-height:1.5;margin-bottom:8px}
.main-foundation-buttons{display:flex;gap:9px;flex-wrap:wrap;margin-top:13px}
.main-foundation-buttons button{font-size:13px;min-height:52px;text-align:left;white-space:normal;line-height:1.5}
.main-foundation-buttons button>span{margin-left:9px;font-size:19px;color:var(--green)}
/* The musical map remains in place; only the current chord changes emphasis. */
.welcome-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.welcome-choice{display:grid;grid-template-columns:minmax(0,1fr) 22px;gap:9px;text-align:left;align-content:start;min-height:134px;padding:22px!important;white-space:normal}
.welcome-choice strong{font-size:18px;line-height:1.5;grid-column:1}
.welcome-choice span:not([aria-hidden]){font-size:13px;line-height:1.65;font-weight:400;grid-column:1}
.welcome-choice span[aria-hidden]{grid-column:2;grid-row:1/3;align-self:center;font-size:25px}
.main-heading-actions{display:flex;flex-wrap:wrap;gap:8px;flex:none}
.main-heading-actions button{min-height:48px;white-space:normal}
.main-brief{grid-template-columns:1fr;padding:17px 20px}
.main-practice{display:flex;flex-direction:column;gap:8px;min-width:0}
.main-live{padding:16px 20px;min-width:0}
.main-current-task{padding:10px 14px;border-left:4px solid var(--green);background:var(--mint);border-radius:0 8px 8px 0}
.main-current-task>span{display:block;font-size:10px;color:var(--green);font-weight:700;margin-bottom:3px}
.main-current-task strong{display:block;font-size:20px;line-height:1.5;color:var(--ink);font-weight:700}
.main-live-meta{display:flex;justify-content:space-between;gap:10px;align-items:center;font-size:11px;color:var(--muted);line-height:1.45;margin:10px 0 8px;font-variant-numeric:tabular-nums;min-height:20px}
.main-live-meta>span:first-child{min-width:0;flex:1}
.main-live-meta [data-main-phase]{text-align:right;flex:none;max-width:38%;white-space:nowrap}
.main-progression{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));overflow:hidden;border:1px solid var(--line);border-radius:9px;background:var(--soft)}
.main-progression[data-chord-count="3"]{grid-template-columns:repeat(3,minmax(0,1fr))}
.main-progression[data-chord-count="2"]{grid-template-columns:repeat(2,minmax(0,1fr))}
.main-progression[data-chord-count="1"]{grid-template-columns:minmax(0,1fr)}
.main-chord-card{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;width:100%;padding:7px 6px;border:0;border-right:1px solid var(--line);border-bottom:4px solid #b8c4b1;border-radius:0;background:var(--panel);min-width:0;min-height:70px;cursor:pointer;touch-action:manipulation;box-shadow:none;white-space:normal;transition:background .12s,border-color .12s}
.main-chord-card:last-child{border-right:0}
.main-chord-card.is-current{background:var(--mint);border-bottom-color:var(--green)}
.main-chord-card.is-next{background:#f5f6ec}
.main-chord-status{font-size:11px;line-height:1.4;min-height:16px;color:var(--muted);font-weight:600}
.main-chord-card.is-current .main-chord-status{color:var(--green);font-weight:800}
.main-chord-card.is-current .main-chord-status::before{content:'▶ ';font-size:9px}
.main-chord-card.is-inspecting{box-shadow:inset 0 0 0 2px var(--green)}
.main-chord-card.is-inspecting .main-chord-status::before{content:'✓ ';font-size:10px}
.main-chord-help{font-size:11px;line-height:1.4;color:var(--muted);margin:5px 0 0;min-height:16px}
.main-chord-card>strong{font-size:39px;line-height:1.18;color:var(--green);letter-spacing:-.7px;font-weight:750;overflow-wrap:anywhere}
.main-roman{font-size:14px;line-height:1.35;color:var(--muted);font-weight:700}
.main-card-role{font-size:11px;line-height:1.4;min-height:16px;color:var(--green);font-weight:700;text-align:center}
.main-live-foot{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:8px}
.main-live-foot .main-chord-help{flex-basis:100%;text-align:center}
.main-beat-dots{display:flex;gap:7px;align-items:center;height:10px}
.main-beat-dots i{width:8px;height:8px;border:1px solid #a1aea0;border-radius:50%;background:var(--soft)}
.main-beat-dots i.on{background:var(--green);border-color:var(--green);box-shadow:0 0 0 2px #d8e8cc}
#main-coach{height:46px;flex:none;min-width:0}
.main-coach{border:1px solid #dac5a9!important;border-left:3px solid var(--main-orange)!important;background:var(--main-warm)!important;box-shadow:none!important;border-radius:8px;padding:3px 8px;display:flex;align-items:center;justify-content:space-between;gap:2px 6px;flex-wrap:wrap;min-width:0;min-height:100%;height:100%}
.main-coach .eyebrow{font-size:10px;line-height:1.4;color:var(--main-orange);flex-basis:100%;margin:0;min-width:0;max-width:100%;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.main-next-tempo,.main-coach-countdown{margin:0;font-size:12px;line-height:1.5;color:var(--green);font-variant-numeric:tabular-nums}
.main-next-tempo>span{color:var(--muted);font-size:10px}
.main-fixed-board{width:100%;min-width:0;border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:12px 14px;overflow:hidden}
.main-board-caption{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:4px 12px;margin:0 0 5px;color:var(--muted);font-size:11px;line-height:1.5}
.main-board-current-label{font-size:15px;font-weight:750;color:var(--green)}
/* Lines stretch with the available space; role text keeps a readable pixel size. */
.main-board-stage{container-type:size;position:relative;width:100%;height:300px;min-height:0;flex:none;isolation:isolate}
.main-board-svg,.main-board-chord-outline{position:absolute;inset:0;display:block;width:100%;height:100%;max-height:none;pointer-events:none}
.main-board-chord-layer{position:absolute;inset:0;display:none;pointer-events:none}
.main-fixed-board[data-current-chord="0"] [data-board-chord="0"],.main-fixed-board[data-current-chord="1"] [data-board-chord="1"],.main-fixed-board[data-current-chord="2"] [data-board-chord="2"],.main-fixed-board[data-current-chord="3"] [data-board-chord="3"]{display:block}
.main-board-tone,.main-board-origin,.main-board-string-label,.main-board-open-label,.main-board-fret-label{position:absolute;left:var(--board-x);top:var(--board-y);transform:translate(-50%,-50%);margin:0;cursor:default;pointer-events:none}
.main-board-tone{width:clamp(16px,13cqh,30px);height:clamp(16px,13cqh,30px);z-index:2}
.main-board-tone-circle{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%;border-radius:50%;border:1px solid var(--role-ink);background:var(--role-fill);color:var(--role-ink);box-shadow:0 1px 2px #23382f12}
.main-board-role-label{font-size:clamp(10px,6cqh,13px);font-weight:800;line-height:1.1;color:inherit}
.main-board-note-label{font-size:9px;line-height:1.1;color:inherit;opacity:.85}
.main-board-target-ring{position:absolute;inset:-4px;border:2px solid var(--green);border-radius:50%;box-shadow:0 0 0 1px var(--panel)}
.main-board-origin{width:clamp(16px,13cqh,30px);height:clamp(16px,13cqh,30px);z-index:3}
.main-board-origin-circle{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%;border:1px dashed #667365;border-radius:50%;background:#edf0e8;color:#465544}
.main-board-origin-ring{position:absolute;inset:-4px;border:2px dashed #536c54;border-radius:50%}
.main-board-origin-label{font-size:8px;font-weight:750;line-height:1.1}
.main-board-origin-member .main-board-origin-label{position:absolute;top:-15px;left:50%;transform:translateX(-50%);background:var(--panel);padding:0 2px;white-space:nowrap}
.main-board-string-label{display:flex;gap:4px;align-items:center;font-size:10px;line-height:1;color:var(--muted)}
.main-board-string-tuning{font-size:9px}
.main-board-open-label,.main-board-fret-label{font-size:11px;line-height:1;font-weight:650;color:var(--muted)}
.main-board-range-label,.main-board-hint-status{font-size:11px;line-height:1.4;color:var(--muted);margin:3px 0 0}
.main-board-legend-item{display:inline-flex;align-items:center;gap:4px}
.main-board-legend-item>i{display:inline-block;width:10px;height:10px;border-radius:50%;flex:none}
.main-board-target-key>i{border:2px solid var(--green);background:transparent}
.main-board-origin-key>i{border:1px dashed #536c54;background:transparent}
.main-board-practice-zone{fill:#e7efdf;fill-opacity:.68;stroke:#9cad94;stroke-dasharray:6 4;stroke-width:1.5}
.main-board-legend{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:11px;line-height:1.5;color:var(--muted);margin:5px 0 0}
.main-board-legend span{white-space:nowrap}
.main-playing .app-header,.main-playing .main-heading,.main-playing .main-brief,.main-playing .main-session-welcome,.main-playing .main-learning-intent,.main-playing #main-settings,.main-playing #main-foundation,.main-playing #main-after,.main-playing #storage-notice{display:none}
.main-playing{height:100dvh;overflow:hidden}
.main-playing main{height:100dvh;padding:10px 20px 0;margin:0 auto;overflow:hidden}
.main-playing .main-workspace{max-width:1180px;height:100%;margin:0 auto;display:flex;flex-direction:column;padding:0}
.main-playing #main-stages{flex:none}
.main-playing .main-stage-status{margin-bottom:8px}
.main-playing .main-practice{flex:1;min-height:0;overflow:hidden}
.main-playing #main-live,.main-playing #main-coach{flex:none}
.main-playing #main-board{flex:1;min-height:0;overflow:hidden}
.main-playing .main-fixed-board{height:100%;display:flex;flex-direction:column}
.main-playing .main-board-stage{flex:1;height:auto;min-height:0}
.main-playing .main-board-caption,.main-playing .main-board-range-label,.main-playing .main-board-legend,.main-playing .main-board-hint-status{flex:none}
.main-playing #main-transport{position:relative;bottom:auto;flex:none}
.main-playing .main-transport{margin:8px 0 0}

@media(hover:hover) and (pointer:fine){.main-session-card:hover{border-color:var(--green);background:#f0f4e9;box-shadow:0 3px 10px #23362e16}.main-settings>summary:hover{border-color:var(--green);background:#eef2e8}.main-stage-button:hover,.main-chord-card:hover{border-color:var(--green);background:#e7eedf;box-shadow:inset 0 0 0 1px var(--green)}.main-top button.primary:not(:disabled):hover,.main-workspace button.primary:not(:disabled):hover{background:#183f30;border-color:#183f30}.main-actions button.secondary:not(:disabled):hover,.main-heading-actions button:not(:disabled):hover,.main-transport button.secondary:not(:disabled):hover,.main-foundation-buttons button:not(:disabled):hover{background:#edf2e6;border-color:var(--green)}.main-confidence button:hover{border-color:var(--green);background:#eff3e8}}
@media(max-width:1000px){.main-setting-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.main-stage-list li{font-size:10px}.main-heading{align-items:start}.main-heading-actions{flex-direction:column}}
@media(max-width:760px){
 .welcome-actions{grid-template-columns:1fr;gap:12px}.welcome-choice{min-height:112px;padding:17px!important}.welcome-choice strong{font-size:17px}
 .main-top{margin:8px auto 24px}.main-hero{padding:22px 18px}.main-hero h1{font-size:27px}.main-hero>p{font-size:14px;line-height:1.8}.main-hero .main-lead{font-size:16px}.main-top>h2{font-size:22px}.main-thought-path{font-size:13px;margin:18px 0;padding:12px 14px}
 .main-coach-intro,.main-session-welcome{padding:12px 13px}.main-coach-intro{margin-top:18px}.main-coach-intro>p,.main-session-welcome>p{font-size:13px;line-height:1.8}.main-coach-intro>span,.main-session-welcome>span{font-size:11px}
 .main-actions{flex-direction:column;gap:8px}.main-actions button{width:100%}.main-session-list{grid-template-columns:1fr;gap:10px}.main-session-card{min-height:124px;padding:16px;gap:10px}.main-session-title{font-size:16px}
 .main-heading{flex-wrap:wrap;gap:10px;margin-bottom:12px}.main-heading h1{font-size:25px}.main-heading-actions{flex-direction:row;width:100%}.main-heading-actions button{flex:1;font-size:12px;padding:10px}
 .main-brief{padding:16px}.main-brief p{font-size:13px}.main-setting-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.main-setting-grid label{font-size:11px}.main-setting-grid select{font-size:12px}
 .main-stage-status>p{display:none}.main-stage-list{gap:4px}.main-stage-button{justify-content:center;font-size:9px;gap:3px;padding:4px 2px;min-height:46px}.main-stage-dot{width:17px;height:17px;font-size:9px}.main-stage-label{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.main-stage-button:not([aria-current]) .main-stage-label{display:none}
 .main-live{padding:9px 11px}.main-current-task{padding:7px 9px;border-left-width:3px}.main-current-task>span{font-size:9px;margin-bottom:2px}.main-current-task strong{font-size:16px;line-height:1.45}.main-live-meta{font-size:10px;margin:6px 0;gap:6px;min-height:15px}.main-live-meta [data-main-phase]{font-size:9px}
 .main-chord-card{padding:5px 3px;gap:1px;border-bottom-width:3px}.main-chord-card>strong{font-size:27px;letter-spacing:-.6px}.main-chord-status{font-size:9px;min-height:13px}.main-roman{font-size:11px}.main-card-role{font-size:9px;min-height:13px}.main-live-foot{margin-top:6px}.main-beat-dots{height:8px}.main-beat-dots i{width:7px;height:7px}
 .main-chord-help{font-size:9px;min-height:13px;margin-top:4px}
 .main-stage-current{display:none}
 #main-coach{height:37px}.main-coach{gap:1px 6px;padding:2px 6px}.main-coach .eyebrow{font-size:8px}.main-next-tempo,.main-coach-countdown{font-size:10px}.main-next-tempo>span{display:none}
 .main-fixed-board{padding:7px 7px}.main-board-caption{font-size:9px;line-height:1.4;gap:2px 5px}.main-board-current-label{font-size:12px}.main-board-note-label{display:none}.main-board-role-label{font-size:clamp(9px,8cqh,11px)}.main-board-stage{height:230px}.main-board-tone,.main-board-origin{width:clamp(14px,13cqh,20px);height:clamp(14px,13cqh,20px)}.main-board-string-label{font-size:9px;gap:1px}.main-board-string-tuning{display:none}.main-board-fret-label,.main-board-open-label{font-size:10px}.main-board-range-label,.main-board-hint-status{font-size:9px}.main-board-target-ring,.main-board-origin-ring{inset:-2px;border-width:1.5px}.main-board-origin-label{font-size:6px}.main-board-origin-member .main-board-origin-label{top:-10px}.main-board-legend{font-size:9px;line-height:1.4;gap:3px 9px}
 .main-review{padding:20px 16px}.main-review h2{font-size:23px}.main-confidence button,.main-review-checks>label{font-size:13px}.main-foundation-buttons{flex-direction:column}.main-foundation-buttons button{width:100%;font-size:12px}
 .main-workspace{padding-bottom:154px}#main-transport{position:fixed;left:0;right:0;bottom:0;z-index:20;margin:0}.main-transport{border-radius:0;margin:0;padding:8px 11px;padding-bottom:calc(8px + env(safe-area-inset-bottom));flex-wrap:wrap;gap:6px}.main-transport-main{flex:1}.main-transport-tools{flex:1}.main-transport button{padding:9px 7px;min-height:48px;font-size:11px}.main-transport button.primary{font-size:12px;min-height:50px}.main-session-time{display:none}.main-transport[data-has-volume=true] .main-transport-main,.main-transport[data-has-volume=true] .main-transport-tools{display:contents}.main-transport[data-has-volume=true] button{flex:1;min-width:0;min-height:50px;font-size:10px;padding:8px 4px}
 .main-backing-volume{grid-template-columns:110px minmax(0,1fr);gap:8px;order:4;padding-top:0}.main-backing-volume>span{font-size:11px}.main-backing-volume output{font-size:10px}.main-hint-status{order:5;font-size:9px;line-height:1.4}
 .main-playing{height:100dvh;overflow:hidden}.main-playing main{height:100dvh;padding:8px 11px 0;margin:0;overflow:hidden}.main-playing .main-workspace{height:100%;display:flex;flex-direction:column;padding-bottom:0}.main-playing #main-stages{flex:none}.main-playing .main-practice{flex:1;min-height:0;gap:5px;overflow:hidden}.main-playing #main-live,.main-playing #main-coach{flex:none}.main-playing #main-board{flex:1;min-height:0;overflow:hidden}.main-playing .main-stage-status{margin-bottom:6px}.main-playing #main-transport{position:relative;flex:none;height:calc(122px + env(safe-area-inset-bottom));margin:0 -11px}.main-playing #main-transport:has(.main-hint-status){height:calc(141px + env(safe-area-inset-bottom))}.main-playing .main-transport{position:absolute;bottom:0;left:0;right:0}.main-playing .main-fixed-board{height:100%;display:flex;flex-direction:column}.main-playing .main-board-stage{flex:1;min-height:0;height:auto}.main-playing .main-board-caption,.main-playing .main-board-legend,.main-playing .main-board-range-label,.main-playing .main-board-hint-status{flex:none}
}
@media(max-width:1000px) and (max-height:480px){
 .main-stage-current{display:none}
 .main-playing #main-stages{display:block}.main-playing .main-board-legend,.main-playing .main-board-range-label,.main-playing .main-board-hint-status{display:none}
 .main-playing{height:100dvh;overflow:hidden}.main-playing main{height:100dvh;padding:5px 11px 0;overflow:hidden}.main-playing .main-workspace{height:100%;display:flex;flex-direction:column;padding:0}.main-playing .main-stage-status{margin-bottom:4px}.main-stage-status>p{display:none}.main-stage-button{font-size:9px;padding:3px 5px;justify-content:center;min-height:44px}.main-stage-dot{width:18px;height:18px;font-size:9px}.main-stage-label{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.main-stage-button:not([aria-current]) .main-stage-label{display:none}
 .main-playing .main-practice{flex:1;min-height:0;display:flex;flex-direction:column;gap:3px;overflow:hidden}.main-playing #main-live{flex:none}.main-playing .main-live{padding:5px 9px}.main-playing .main-current-task{padding:3px 7px}.main-playing .main-current-task>span{display:none}.main-playing .main-current-task strong{font-size:13px;line-height:1.4}.main-playing .main-live-meta{font-size:9px;margin:3px 0;min-height:12px}.main-playing .main-live-meta [data-main-phase]{font-size:8px}.main-playing .main-chord-card{padding:2px 3px;gap:0}.main-playing .main-chord-card>strong{font-size:23px}.main-playing .main-chord-status{font-size:8px;min-height:11px}.main-playing .main-roman{font-size:9px}.main-playing .main-card-role{font-size:8px;min-height:11px}.main-playing .main-live-foot{margin-top:3px}.main-playing .main-beat-dots{height:5px}.main-playing .main-beat-dots i{width:5px;height:5px}
 .main-playing #main-coach{height:16px;flex:none}.main-playing .main-coach{flex-wrap:nowrap;gap:10px;min-height:16px;padding:0 5px}.main-playing .main-coach .eyebrow{display:none}.main-playing .main-next-tempo,.main-playing .main-coach-countdown{font-size:9px;line-height:1.4}.main-playing .main-next-tempo>span{display:none}
 .main-playing #main-board{display:block;flex:1;min-height:0;overflow:hidden}.main-playing .main-fixed-board{height:100%;padding:3px 7px;display:flex;flex-direction:column}.main-playing .main-board-stage{flex:1;min-height:0;height:auto}.main-playing .main-board-caption{font-size:8px;line-height:1.3;margin-bottom:2px}.main-playing .main-board-current-label{font-size:10px}.main-playing .main-board-note-label{display:none}.main-playing .main-board-tone,.main-playing .main-board-origin{width:16px;height:16px}.main-playing .main-board-role-label{font-size:10px}.main-playing .main-board-range-label,.main-playing .main-board-hint-status{font-size:8px;line-height:1.2;margin:2px 0 0}.main-playing .main-board-legend{font-size:8px;line-height:1.3;margin:2px 0 0}
 .main-playing #main-transport,.main-playing #main-transport:has(.main-hint-status){position:relative;flex:none;height:76px;margin:0 -11px}.main-playing .main-transport{position:absolute;bottom:0;left:0;right:0;margin:0;border-radius:0;flex-wrap:nowrap;padding:8px 11px;gap:6px}.main-playing .main-transport-main,.main-playing .main-transport-tools{display:contents}.main-playing .main-transport button{flex:1;min-width:0;min-height:50px;font-size:10px;padding:8px 5px}.main-playing .main-session-time,.main-playing .main-hint-status{display:none}.main-playing .main-backing-volume{flex:0 0 125px;display:flex;gap:6px;order:0;border:0;padding:0}.main-playing .main-backing-volume>span{width:55px;flex:none;font-size:10px;line-height:1.4}.main-playing .main-backing-volume output{display:block;font-size:9px}.main-playing .main-backing-volume input{width:64px;height:48px}
}
@container(max-height:160px){.main-board-note-label{display:none}}
@media(max-width:1000px) and (max-height:480px){
 .main-playing .main-chord-help{font-size:8px;min-height:11px;line-height:1.3;margin:2px 0 0}
 .main-playing .main-chord-card{display:grid;grid-template-columns:1fr 1fr;align-content:center;min-height:54px}
 .main-playing .main-chord-status,.main-playing .main-chord-card>strong{grid-column:1/-1}
 .main-playing .main-roman{text-align:right;padding-right:5px}
 .main-playing .main-card-role{text-align:left;padding-left:5px}
 .main-playing .main-live-foot{flex-wrap:nowrap;gap:8px;margin-top:2px}
 .main-playing .main-live-foot .main-chord-help{flex-basis:auto;min-height:11px;margin-top:0}
 .main-playing .main-board-tone,.main-playing .main-board-origin{width:clamp(12px,13cqh,16px);height:clamp(12px,13cqh,16px)}
 .main-playing .main-board-role-label{font-size:clamp(8px,7cqh,10px)}
 .main-playing #main-transport,.main-playing #main-transport:has(.main-hint-status){height:68px}
}
@media(min-width:1001px) and (max-height:760px){
 .main-playing .main-stage-status>p{display:none}.main-playing .main-stage-list li{padding:5px}.main-playing .main-live{padding:8px 14px}.main-playing .main-current-task{padding:6px 10px}.main-playing .main-current-task strong{font-size:17px}.main-playing .main-chord-card>strong{font-size:30px}.main-playing .main-chord-card{padding:5px}.main-playing #main-coach{height:32px}.main-playing .main-coach{flex-wrap:nowrap}.main-playing .main-coach .eyebrow{flex-basis:auto}.main-playing .main-next-tempo,.main-playing .main-coach-countdown{font-size:10px}.main-playing .main-next-tempo>span{display:none}
}
@media(prefers-reduced-motion:reduce){.main-session-card{transition:none}.main-session-card:hover{transform:none}}

/* These are preparation notes. The playing view keeps its single fixed task. */
.main-coach-intro,.main-session-welcome{padding:0;border:0;background:transparent}
.main-coach-intro .nu-coach-card,.main-session-welcome .nu-coach-card{margin:0}
.main-learning-intent{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;padding:19px 22px;margin:0 0 18px;border:1px solid #d3dcce;border-radius:14px;background:var(--panel);color:var(--ink)}
.main-learning-intent article{min-width:0}
.main-learning-intent article+article{border-left:1px solid #d3dcce;padding-left:20px}
.main-learning-intent h2{margin:0 0 7px;font-size:13px;font-weight:750;line-height:1.6;color:var(--green)}
.main-learning-intent p{margin:0;font-size:14px;line-height:1.8;overflow-wrap:break-word}
.main-review .nu-coach-copy h2{font-size:14px;line-height:1.5;margin:0 0 5px}
.main-review .nu-coach-card{margin:16px 0 8px}
@media(max-width:760px){
 .main-learning-intent{grid-template-columns:1fr;gap:12px;padding:16px;margin-bottom:16px}
 .main-learning-intent article+article{border-left:0;border-top:1px solid #d3dcce;padding:12px 0 0}
 .main-learning-intent h2{font-size:12px;margin-bottom:4px}
 .main-learning-intent p{font-size:13px;line-height:1.75}
}

/* One route for the first musical choices; optional practice stays out of the way. */
.main-extra-sessions{margin:22px 0 28px;border:1px solid #cbd7c5;border-radius:13px;background:var(--panel);padding:14px 18px}
.main-extra-sessions>summary{display:flex;align-items:center;justify-content:space-between;gap:12px;list-style:none;cursor:pointer;min-height:48px;font-size:17px;font-weight:750;color:var(--green);border:1px solid #a3b59b;border-radius:9px;padding:8px 12px;background:#f0f4e9}
.main-extra-sessions>summary::before{content:'+';font-size:22px}.main-extra-sessions[open]>summary::before{content:'−'}
.main-extra-sessions>summary>span{font-size:12px;font-weight:500;margin-left:auto;color:var(--muted)}
.main-extra-sessions>summary:focus-visible{outline:3px solid #277baa;outline-offset:3px}.main-extra-sessions>summary:active{background:#dde8d3}
.main-extra-sessions>.main-session-list{margin-top:14px}
.main-penta-learn{margin:12px 0 0;padding:13px 16px;background:#f0f4ea;border-left:3px solid #a1b195;border-radius:0 9px 9px 0;font-size:14px;line-height:1.85}
.main-fixed-route-setting{display:flex;flex-direction:column;justify-content:center;gap:5px;min-width:0;font-size:12px;line-height:1.55;padding:9px 10px;border:1px solid #d2dbc9;border-radius:8px;background:#f3f5ee;margin:0}
.main-fixed-route-setting>strong{font-size:12px;color:var(--green)}
.main-current-task .main-focus-support{font-size:12px;line-height:1.55;color:#52644b;margin:5px 0 0;font-weight:500}
.main-penta-reference-label{font-size:11px;line-height:1.5;color:var(--muted);margin:0 0 6px}
.main-penta-tone,.main-penta-anchor,.main-penta-bridge,.main-penta-next-target,.main-penta-common,.main-penta-target-tag{position:absolute;left:var(--board-x);top:var(--board-y);transform:translate(-50%,-50%);pointer-events:none;cursor:default}
.main-penta-tone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;z-index:1;width:clamp(16px,12cqh,25px);height:clamp(16px,12cqh,25px);border:1px dashed #829aa2;background:#e5eff1a6;border-radius:50%;color:#55727b;opacity:.76}
.main-penta-tone>b{font-size:clamp(8px,5cqh,10px);line-height:1.1;font-weight:650}.main-penta-tone>small{font-size:8px;line-height:1;color:#55727b}
.main-penta-anchor{width:clamp(16px,13cqh,30px);height:clamp(16px,13cqh,30px);z-index:3}
.main-penta-anchor>i{position:absolute;inset:-3px;border:1.5px dashed #5e7588;border-radius:4px}
.main-penta-anchor>b{position:absolute;left:50%;bottom:calc(100% + 4px);transform:translateX(-50%);background:#fffdf7e6;color:#496276;font-size:8px;line-height:1.2;white-space:nowrap;padding:1px 2px}
.main-penta-octave-lines{position:absolute;inset:0;display:block;width:100%;height:100%;pointer-events:none;z-index:0}
.main-penta-bridge{z-index:4;display:flex;align-items:center;justify-content:center;width:clamp(17px,14cqh,29px);height:clamp(17px,14cqh,29px);background:#fff0d6;border:2px dashed #ad7936;border-radius:7px;color:#765522}
.main-penta-bridge>b{font-size:clamp(9px,6cqh,12px);line-height:1;font-weight:750}.main-penta-bridge>small{position:absolute;left:50%;top:calc(100% + 2px);transform:translateX(-50%);font-size:8px;line-height:1.1;white-space:nowrap;background:#fffbf3de;padding:1px 2px}
.main-penta-bridge-member{border:0;background:transparent;box-shadow:none}
.main-penta-bridge-member>i{position:absolute;inset:-3px;border:1.5px dashed #ad7936;border-radius:8px;background:transparent}
.main-penta-bridge-member>small{left:calc(50% - 5px);background:#fff4e2ed;border-radius:3px;color:#765522}
.main-penta-next-target{z-index:4;display:flex;align-items:center;gap:3px;padding:2px 4px;min-width:29px;transform:translate(-50%,calc(-50% + 25px));border:1px dashed #82907b;border-radius:5px;background:#f9fbf4ed;color:#607454;white-space:nowrap}
.main-penta-next-target>b{font-size:10px;line-height:1.1}.main-penta-next-target>small{font-size:8px;line-height:1.1}
.main-penta-common{z-index:4;display:flex;align-items:center;justify-content:center;width:clamp(16px,13cqh,30px);height:clamp(16px,13cqh,30px)}
.main-penta-common>b{position:absolute;right:-7px;bottom:-5px;font-size:10px;font-weight:750;line-height:1;background:#edf2e7;padding:1px 2px;color:#64765b;border:1px solid #a8b7a0;border-radius:3px}
.main-penta-target-tag{z-index:5;transform:translate(-50%,calc(-50% + 27px));font-size:9px;font-weight:750;line-height:1;padding:2px 4px;color:var(--green);background:#eef5e9eb;border:1px solid #a3b997;border-radius:4px;white-space:nowrap}
.main-penta-phrase{display:none;align-items:center;gap:6px;flex-wrap:wrap;margin:4px 0 0;font-size:11px;line-height:1.5;color:var(--green)}
.main-fixed-board[data-current-chord="0"] [data-penta-phrase-chord="0"],.main-fixed-board[data-current-chord="1"] [data-penta-phrase-chord="1"],.main-fixed-board[data-current-chord="2"] [data-penta-phrase-chord="2"],.main-fixed-board[data-current-chord="3"] [data-penta-phrase-chord="3"]{display:flex}
.main-penta-legend{font-size:10px;gap:3px 11px;margin-top:4px}.main-penta-legend b{font-weight:750}
.main-playing .main-penta-reference-label,.main-playing .main-penta-phrase{flex:none}
@media(hover:hover) and (pointer:fine){.main-extra-sessions>summary:hover{background:#e6eedf;border-color:var(--green)}}
@media(max-width:760px){
 .main-extra-sessions{padding:12px;margin-top:18px}.main-extra-sessions>summary{font-size:14px;gap:7px;padding:8px}.main-extra-sessions>summary>span{font-size:10px}
 .main-penta-learn{font-size:13px;padding:12px 13px}.main-fixed-route-setting{font-size:11px;padding:8px}
 .main-current-task .main-focus-support{font-size:10px;line-height:1.45;margin-top:4px}
 .main-penta-reference-label{font-size:9px;line-height:1.4;margin-bottom:3px}
 .main-penta-tone{width:clamp(13px,12cqh,18px);height:clamp(13px,12cqh,18px)}.main-penta-tone>b{font-size:clamp(7px,5cqh,8px)}.main-penta-tone>small{display:none}
 .main-penta-anchor{width:clamp(14px,13cqh,20px);height:clamp(14px,13cqh,20px)}.main-penta-anchor>i{inset:-2px;border-width:1px}.main-penta-anchor>b{font-size:6px;bottom:calc(100% + 2px)}
 .main-penta-bridge{width:clamp(14px,13cqh,20px);height:clamp(14px,13cqh,20px);border-width:1px}.main-penta-bridge>b{font-size:9px}.main-penta-bridge>small{font-size:6px;top:calc(100% + 1px)}
 .main-penta-bridge-member{border-width:0}.main-penta-bridge-member>i{inset:-2px;border-width:1px}
 .main-penta-next-target{transform:translate(-50%,calc(-50% + 16px));padding:1px 2px;gap:2px;min-width:22px}.main-penta-next-target>b{font-size:8px}.main-penta-next-target>small{font-size:6px}
 .main-penta-target-tag{font-size:7px;padding:1px 2px;transform:translate(-50%,calc(-50% + 19px))}
 .main-penta-common{width:20px;height:20px}.main-penta-common>b{font-size:8px;right:-5px;bottom:-4px;padding:0 1px}
 .main-penta-phrase{font-size:9px;gap:4px}.main-penta-legend{font-size:8px;gap:2px 7px}
}
@media(max-width:1000px) and (max-height:480px){
 .main-playing .main-current-task .main-focus-support{font-size:9px;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:2px 0 0}
 .main-playing .main-penta-reference-label{font-size:8px;line-height:1.3;margin-bottom:1px}
 .main-playing .main-penta-phrase{display:none}.main-playing .main-penta-next-target,.main-playing .main-penta-target-tag{display:none}
 .main-playing .main-penta-tone{width:12px;height:12px}.main-playing .main-penta-tone>b{font-size:6px}
 .main-playing .main-penta-anchor>b{display:none}.main-playing .main-penta-anchor{width:14px;height:14px}
 .main-playing .main-penta-bridge{width:14px;height:14px}.main-playing .main-penta-bridge>b{font-size:8px}.main-playing .main-penta-bridge>small{display:none}
}

/* A short landscape screen gives its height to the six strings. The fixed
   task and live meta already retain the pentatonic reference above the chart. */
@media(max-width:1000px) and (max-height:480px){
 .main-playing .main-penta-board .main-board-caption,
 .main-playing .main-penta-board .main-penta-reference-label,
 .main-playing .main-penta-board .main-board-range-label,
 .main-playing .main-penta-board .main-board-legend,
 .main-playing .main-fixed-board.main-penta-board [data-penta-phrase-chord]{display:none}
 .main-playing .main-penta-board{padding-block:2px}
 .main-playing .main-penta-board .main-board-stage{min-height:100px}
 .main-playing .main-workspace:has(.main-penta-board) #main-coach:empty{height:0;display:none}
}

/* Short guitar repetitions and the one-note hear/find activity. */
.main-focus-links{margin:24px 0;padding:18px;border-top:1px solid var(--line)}
.main-focus-links h2{font-size:20px}.main-focus-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.main-focus-options>button{position:relative;text-align:left;min-height:98px;padding:16px 30px 16px 16px;background:#f1f5e9;border:2px solid #b8c8a8;border-radius:12px;cursor:pointer;display:flex;flex-direction:column;gap:8px}
.main-focus-options>button>span{font-size:12px;line-height:1.5;color:#4d5e49}.main-focus-options>button>b{position:absolute;right:12px;top:18px}
.main-graduation-entry{margin:22px 0}.main-graduation-entry h2{font-size:21px}
.main-ear-entry{margin:14px 0}.main-ear-entry>button{min-height:48px}.main-ear-workspace{margin:18px 0}.main-ear-heading{display:flex;justify-content:space-between;gap:12px;align-items:center}.main-ear-heading h2{font-size:22px}
.main-ear-steps{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;font-size:12px}.main-ear-steps li{padding:7px 9px;background:#f2f3ed;border-bottom:2px solid transparent}.main-ear-steps [aria-current]{font-weight:750;border-color:#315a35;background:#e5eedb}
.main-ear-cue{font-weight:650;font-size:17px;line-height:1.55}.main-ear-reports p{margin-bottom:6px}.main-ear-reports button{min-height:44px;margin:0 8px 8px 0}.main-ear-reports button[aria-pressed=true]{border:2px solid #315a35;background:#e5eedb}
.main-ear-active #main-settings,.main-ear-active #main-stages,.main-ear-active .main-practice,.main-ear-active #main-transport,.main-ear-active #main-after,.main-ear-active #main-foundation,.main-ear-active .main-session-welcome,.main-ear-active .main-learning-intent{display:none}
.main-playing #main-ear{display:none}
@media(hover:hover){.main-focus-options>button:hover{border-color:#315a35;transform:translateY(-2px)}}
.main-focus-options>button:active{transform:translateY(1px)}.main-focus-options>button:focus-visible{outline:3px solid #ac762e;outline-offset:3px}
@media(max-width:760px){.main-focus-options{grid-template-columns:1fr}.main-focus-options>button{min-height:76px}.main-focus-links{padding:12px}.main-ear-heading{align-items:flex-start}.main-ear-heading h2{font-size:19px}.main-ear-steps{gap:4px;font-size:10px}.main-ear-cue{font-size:15px}.main-ear-workspace{padding:14px}.main-ear-workspace .main-fixed-board{margin:10px 0}}

.main-reference-detail{padding:12px 16px;background:#f2f4ec;border-top:1px solid #b8c8a8}.main-reference-detail h3{margin:0 0 8px}.main-reference-detail dl{display:flex;flex-wrap:wrap;gap:12px 24px;margin:0}.main-reference-detail dt{font-size:12px;color:#556650}.main-reference-detail dd{font-weight:700;margin:4px 0}

.main-ear-workspace button[aria-pressed="true"]::before{content:none}.main-ear-workspace>.main-actions{position:sticky;bottom:0;background:#fffdf6;padding:10px 0;z-index:8}

/* One attention view at a time; layers are explored only while stopped. */
.main-layer-controls{padding:9px 12px;margin-bottom:8px;border:1px solid #b7c7ae;border-radius:9px;background:#f1f5e9;flex:none}
.main-layer-controls p{font-size:12px;line-height:1.5;margin:0 0 7px}.main-layer-controls>div{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px}
.main-layer-controls button{min-height:44px;padding:6px 9px;border:1px solid #8eab80;border-radius:7px;background:#fffdf6;cursor:pointer;font-size:12px;font-weight:650}
.main-layer-controls button[aria-pressed="true"]{border:2px solid #315a35;background:#dcebcf}.main-layer-controls button[aria-pressed="true"]::before{content:none}
.main-layer-controls button:focus-visible{outline:3px solid #277baa;outline-offset:2px}.main-layer-controls button:active{background:#d2e4c6;transform:translateY(1px)}
#main-layers:empty{display:none}.main-playing #main-layers{flex:none}
.main-perspective-map{position:absolute;inset:0;display:none;pointer-events:none}
.main-fixed-board[data-map-view="key"] [data-main-map-view="key"],.main-fixed-board[data-map-view="chord"] [data-main-map-view="chord"],.main-fixed-board[data-map-view="choice"] [data-main-map-view="choice"]{display:block}
/* Stopped study can contain long explanations. Never squeeze its map into the
   immersive playback viewport; keep a real board height and allow scrolling. */
.main-inspecting #main-board{overflow-x:auto}
.main-inspecting .main-fixed-board{min-width:700px}
.main-inspecting .main-board-stage{height:300px;flex:none}
.main-inspecting .main-board-note-label{display:block}
.main-inspecting .main-board-tone{width:30px;height:30px}
.main-key-tone{border-style:solid;border-color:#6a96aa;background:#e3eff3;color:#3e6d85}
.main-view-cue,.main-prepare-cue{font-size:12px;font-weight:750;border:1px solid #8aa77d;border-radius:5px;padding:3px 8px;color:#315a35;background:#edf5e4;min-height:22px;line-height:1.3}
.main-view-cue{border-color:#719cad;color:#315f74;background:#e9f3f7}.main-prepare-cue[data-prepare-phase="prepare-next"]{background:#fff1d6;border-style:dashed;border-color:#ac7833;color:#805b2c}
.main-live-foot{gap:5px 10px}.main-phrase-analysis{margin-top:14px;border-top:1px solid #bccab3;padding-top:12px}.main-phrase-analysis h4{font-size:14px;margin:0 0 7px}
.main-two-views{display:grid;grid-template-columns:1fr 1fr;gap:15px;padding:12px 0;border-top:1px solid #c4d0bd;border-bottom:1px solid #c4d0bd}.main-two-views p{margin:0;font-size:13px;line-height:1.7}.main-two-views b{display:block;color:#315a35;font-size:15px}
.main-phrase-analysis p{font-size:12px;line-height:1.65}.main-phrase-analysis ol{display:flex;gap:10px;list-style:none;padding:0;margin:8px 0}.main-phrase-analysis li{display:flex;flex-direction:column;gap:4px;flex:1;padding:8px;border:1px solid #c5d1be;border-radius:6px}.main-phrase-analysis li span,.main-phrase-analysis li small{font-size:11px}.main-phrase-analysis li b{font-size:18px}
@media(hover:hover){.main-layer-controls button:hover{background:#e4eedb;border-color:#315a35}}
@media(max-width:760px){.main-layer-controls{padding:7px 8px}.main-layer-controls p{font-size:10px}.main-layer-controls button{font-size:10px;padding:5px 2px}.main-layer-controls>div{gap:4px}.main-view-cue,.main-prepare-cue{font-size:10px;padding:2px 6px;min-height:19px}.main-live-foot .main-chord-help{font-size:9px}}
@media(max-width:1000px) and (max-height:480px){.main-playing .main-layer-controls p{display:none}.main-playing .main-layer-controls{margin:0;padding:3px 5px}.main-playing .main-layer-controls button{min-height:34px;font-size:9px}.main-playing .main-view-cue,.main-playing .main-prepare-cue{font-size:8px;padding:1px 4px;min-height:12px}.main-playing .main-live-foot .main-chord-help{display:none}}