:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#16151a;--surface:#1f1e25;--surface-raised:#2a2831;--surface-inset:#100f13;--text:#f2efe9;--text-soft:#c9c3b9;--text-faint:#8f8a82;--brass:#d8a84e;--brass-bright:#e8bd68;--brass-wash:#d8a84e21;--surface-held:#3f3730;--rule:#f2efe930;--rule-faint:#f2efe917;--ivory:#f2ede3;--ivory-deep:#ddd6c8;--space-1:4px;--space-2:8px;--space-3:16px;--space-4:24px;--space-5:40px;--space-6:64px;--measure:34rem;--font-display:Georgia, "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;--font-text:"Montserrat", system-ui, -apple-system, "Segoe UI", sans-serif}:root:where([data-theme=light]){--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#eeeae3;--surface:#f7f4ee;--surface-raised:#fffdf9;--surface-inset:#e2ddd3;--text:#241f18;--text-soft:#3d362d;--text-faint:#645c51;--brass:#7a5a14;--brass-bright:#664a0e;--brass-wash:#7a5a141a;--surface-held:#f1deb8;--rule:#241f1833;--rule-faint:#241f181a}@media (prefers-color-scheme:light){:root:where(:not([data-theme=dark])){--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#eeeae3;--surface:#f7f4ee;--surface-raised:#fffdf9;--surface-inset:#e2ddd3;--text:#241f18;--text-soft:#3d362d;--text-faint:#645c51;--brass:#7a5a14;--brass-bright:#664a0e;--brass-wash:#7a5a141a;--surface-held:#f1deb8;--rule:#241f1833;--rule-faint:#241f181a}}@font-face{font-family:Montserrat;src:url(/fonts/montserrat-latin-var.woff2)format("woff2");font-weight:400 700;font-style:normal;font-display:swap}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}body{background:var(--bg);min-height:100dvh;color:var(--text);font-family:var(--font-text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;flex-direction:column;font-size:16px;line-height:1.65;display:flex}img,svg{max-width:100%;height:auto;display:block}a{color:var(--text);text-decoration:underline;-webkit-text-decoration-color:var(--brass);text-decoration-color:var(--brass);text-underline-offset:3px;text-decoration-thickness:1px}a:hover{color:var(--brass-bright);text-decoration-thickness:2px}h1,h2,h3{font-family:var(--font-display);letter-spacing:-.015em;text-wrap:balance;font-weight:400;line-height:1.08}h1{font-size:clamp(2.5rem,1.6rem + 3.4vw,4.3rem)}h2{font-size:clamp(1.9rem,1.3rem + 2.2vw,2.9rem)}h3{font-family:var(--font-text);letter-spacing:0;font-size:1.06rem;font-weight:700;line-height:1.3}p{text-wrap:pretty}:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
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var(--space-4));padding-block:var(--space-3);flex-wrap:wrap;display:flex;position:relative}.brand{align-items:center;gap:10px;text-decoration:none;display:inline-flex}.brand:hover{text-decoration:none}.brand-name{font-family:var(--font-display);letter-spacing:-.02em;color:var(--text);font-size:1.5rem;line-height:1.1}.brand-sub{font-family:var(--font-text);color:var(--text-faint);font-size:.72rem;font-weight:600;display:block}.masthead-nav{align-items:center;gap:clamp(var(--space-3), 3vw, var(--space-4));font-size:.9rem;display:flex}.masthead-nav a{color:var(--text-soft);border-bottom:1.5px solid #0000;padding-block:6px;text-decoration:none}.masthead-nav a:hover{color:var(--text);border-bottom-color:var(--brass);text-decoration:none}@media (max-width:480px){.masthead-inner{gap:8px 6px}.brand svg{width:26px;height:26px}.brand>span{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.masthead-nav{gap:6px;font-size:.85rem}}@media (max-width:384px){.masthead-nav{font-size:.8rem}}@media (max-width:370px){.masthead-nav{font-size:.75rem}}.site-search{margin-inline-start:auto}.search-open{border:1px solid var(--rule);height:32px;color:var(--text-faint);font:inherit;cursor:pointer;background:0 0;border-radius:16px;align-items:center;gap:8px;padding:0 14px 0 10px;font-size:.9rem;text-decoration:none;display:inline-flex}.search-open svg,.search-row>svg{color:var(--brass);flex:none}.search-open:hover,.search-open[aria-expanded=true]{border-color:var(--brass);color:var(--text);text-decoration:none}.search-fallback{display:none}@media (scripting:none){.search-fallback{display:inline-flex}.search-fallback+.search-open{display:none}}.search-hidden{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}@media (max-width:720px){.search-open{justify-content:center;width:32px;padding:0}.search-label{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}}@media (max-width:480px){.search-open,.theme-switch{border:0;width:28px;height:28px;margin-inline:-2px}}.search-panel{z-index:30;top:calc(100% + 1px);right:var(--space-4);width:min(32rem, calc(100% - 2 * var(--space-4)));background:var(--surface);border:1px solid var(--rule);border-top:0;border-radius:0 0 9px 9px;position:absolute}.search-row{padding-inline:var(--space-3);border-bottom:1px solid var(--rule-faint);align-items:center;gap:10px;display:flex}.search-row:focus-within{border-bottom-color:var(--brass);box-shadow:inset 0 -1px 0 var(--brass)}.search-row input{min-width:0;color:var(--text);font:inherit;background:0 0;border:0;flex:1;padding:14px 0;font-size:1rem}.search-row input::placeholder{color:var(--text-faint);opacity:1}.search-row input:focus-visible{outline:none}.search-close{color:var(--text-soft);font:inherit;cursor:pointer;background:0 0;border:0;flex:none;padding:6px 0;font-size:.85rem}.search-close:hover{color:var(--text)}.search-list{max-height:min(34rem,70vh);margin:0;padding:6px 0;list-style:none;overflow-y:auto}.search-list li{align-items:center;gap:var(--space-3);padding:8px var(--space-3);cursor:pointer;display:flex}.search-text{flex:1;min-width:0}.search-short{color:var(--brass);font-family:var(--font-text);font-size:.98rem;font-weight:700}.search-kind{color:var(--text-faint);flex-shrink:0;font-size:.78rem}.search-title{color:var(--text);font-family:var(--font-display);font-size:1.08rem;line-height:1.3;display:block}.search-detail{color:var(--text-faint);font-size:.82rem;display:block}.search-list li:hover,.search-list li[aria-selected=true]{background:var(--brass-wash)}.search-list li[aria-selected=true]{box-shadow:inset 0 0 0 2px var(--brass)}.search-list li:hover .search-detail,.search-list li[aria-selected=true] .search-detail,.search-list li:hover .search-kind,.search-list li[aria-selected=true] .search-kind{color:var(--text-soft)}.search-none{padding:12px var(--space-3) 14px;color:var(--text-soft);margin:0;font-size:.9rem}@media (forced-colors:active){.search-list li[aria-selected=true]{outline-offset:-2px;outline:2px solid highlight}}.opening{padding-block:clamp(36px,5vw,68px) clamp(32px,4vw,56px)}.opening-grid{gap:clamp(var(--space-4), 4vw, var(--space-6));grid-template-columns:minmax(0,1fr);align-items:start;display:grid}@media (min-width:940px){.opening-grid{grid-template-rows:auto 1fr;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);row-gap:0}.opening-copy{grid-area:1/1}.opening-next{grid-area:2/1}.opening-grid>.hero-piano{grid-area:1/2/3/3}}@media (max-width:939px){.opening-next .opening-actions{margin-top:0}}.opening-more{column-gap:var(--space-5);flex-wrap:wrap;flex-basis:100%;display:flex}.opening-title{margin-block:var(--space-3) var(--space-4)}.opening-title em{color:var(--brass);font-style:normal;display:block}.opening-actions{gap:var(--space-3);margin-top:var(--space-5);flex-wrap:wrap;display:flex}.hero-piano{border:1px solid var(--rule);background:linear-gradient(var(--surface), var(--surface-inset));padding:var(--space-3);border-radius:14px}.readout{align-items:baseline;gap:0 var(--space-3);min-height:58px;padding:10px var(--space-3);margin-bottom:var(--space-3);background:var(--surface-inset);border:1px solid var(--rule-faint);border-radius:9px;flex-wrap:wrap;display:flex}.readout-chord{font-family:var(--font-text);letter-spacing:-.02em;color:var(--brass);font-size:2rem;font-weight:700;line-height:1.1}.readout-notes{letter-spacing:.08em;color:var(--text-faint);font-size:.86rem}.readout-hint{color:var(--text-soft);align-self:center;font-size:.95rem}.keybed{--key-white:#f2ede3;--key-white-hover:#e6e0d4;--key-white-border:#c5bfb2;--key-black:#171519;--key-black-hover:#24212a;--key-black-border:#08070a;--key-held:#e2b45c;--key-held-deep:#a97c2c;--key-label:#4f4a43;--key-label-on-black:#ded7ca;--key-label-held:#3a2c0c;--whites:var(--whites-all,8);align-items:flex-start;height:210px;padding-bottom:2px;display:flex}.pkey{border:0;border-right:1px solid var(--key-white-border);background:linear-gradient(var(--key-white), var(--key-white-hover) 88%, var(--key-white-border));min-width:0;height:100%;color:var(--key-label);font-family:var(--font-text);cursor:pointer;border-radius:0 0 5px 5px;flex:1 1 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4px;flex:none;align-items:center;box-shadow:0 4px 6px #0000008c,inset 0 -2px 2px #00000059,inset 0 1px #ffffff12}.pkey-sharp:not(.is-held):hover{background:linear-gradient(var(--key-black-hover) 80%, var(--key-black))}.pkey-sharp.is-held{background:linear-gradient(var(--key-held), var(--key-held-deep) 80%);transform:translateY(2px);box-shadow:0 2px 3px #0006,inset 0 -1px 1px #00000026,inset 0 1px #ffffff4d}.pkey-name{-webkit-user-select:none;user-select:none;flex-direction:column;align-items:center;display:flex}.pkey.is-held .pkey-name{color:var(--key-black)}.pkey-role{top:6px;left:calc(50% + var(--role-shift,0px));color:var(--key-label-held);white-space:nowrap;-webkit-user-select:none;user-select:none;font-size:11px;line-height:1;position:absolute;translate:-50%}.pkey.ivory-left{--role-shift:calc(100% * -22 / 136)}.pkey.ivory-right{--role-shift:calc(100% * 22 / 136)}.pkey:not(.pkey-sharp) .pkey-role.is-long{top:calc(60% + 6px);left:50%}@media (max-width:768px),(max-height:500px){.pkey-role{font-size:13px}}.pkey:focus-visible{outline:none}.pkey:focus-visible:after{content:"";box-shadow:inset 0 0 0 2px var(--key-black), inset 0 0 0 4px var(--key-white);outline-offset:-2px;pointer-events:none;border-radius:4px;outline:2px solid #0000;position:absolute;inset:calc(60% + 4px) 4px 4px}.pkey-sharp:focus-visible:after{border-radius:3px;inset:3px}@media (forced-colors:active){.pkey-sharp:not(.is-held){background:canvas}.pkey.is-held{forced-color-adjust:none;background:highlight}.pkey.is-held :is(.pkey-name,.pkey-role){color:highlighttext}}.hero-piano-open{min-height:36px;margin-top:var(--space-2);text-align:center;font-size:.92rem;font-weight:600;line-height:22px}.hero-piano-open a{padding-block:7px;display:inline-block}.hero-piano-caption{margin-top:var(--space-3);color:var(--text-faint);text-align:center;text-wrap:balance;font-size:.85rem}.for-touch{display:none}@media (hover:none) and 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var(--rule);background:var(--surface-inset);color:var(--text);font:inherit;cursor:pointer;border-radius:9px;flex:none;align-items:center;gap:8px;font-size:.92rem;font-weight:600;display:inline-flex}.hear-it svg{fill:currentColor;width:11px;height:12px}.hear-it:hover:not(:disabled){border-color:var(--text-faint)}.hear-it:disabled{color:var(--text-faint);cursor:default}.movement-head{gap:var(--space-3);margin-bottom:var(--space-5);grid-template-columns:minmax(0,1fr);display:grid}.movement-head h2{margin-bottom:var(--space-2)}.movement-head p{color:var(--text-soft);max-width:var(--measure)}.method-step{padding-block:var(--space-4);border-bottom:1px solid var(--rule-faint);grid-template-columns:minmax(0,1fr);display:grid}.method-step h3{font-family:var(--font-display)}.method-step p{color:var(--text-soft);max-width:var(--measure)}.index-list{border-top:1px solid var(--rule);columns:1}@media 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summary:before{content:"Q.";font-family:var(--font-text);color:var(--brass);letter-spacing:.06em;padding-top:6px;font-size:.8rem;font-weight:700}.qa-answer{gap:var(--space-2);padding-bottom:var(--space-4);color:var(--text-soft);grid-template-columns:28px minmax(0,1fr);max-width:52rem;display:grid}.qa-answer:before{content:"A.";font-family:var(--font-text);color:var(--text-faint);letter-spacing:.06em;font-size:.8rem;font-weight:700}.qa-answer p+p{margin-top:var(--space-2)}.shortcuts{gap:6px var(--space-3);margin-top:var(--space-3);grid-template-columns:max-content minmax(0,1fr);align-items:baseline;display:grid}.shortcuts div{display:contents}.shortcuts kbd{border:1px solid var(--rule);background:var(--surface);color:var(--text);font-family:var(--font-text);white-space:nowrap;border-radius:5px;padding:1px 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