/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-ease:initial}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--ease-in-out:cubic-bezier(.4, 0, .2, 1);--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.start{inset-inline-start:var(--spacing)}.container{width:100%}@media (width>=40rem){.container{max-width:40rem}}@media (width>=48rem){.container{max-width:48rem}}@media (width>=64rem){.container{max-width:64rem}}@media (width>=80rem){.container{max-width:80rem}}@media (width>=96rem){.container{max-width:96rem}}.block{display:block}.flex{display:flex}.hidden{display:none}.table{display:table}.flex-shrink{flex-shrink:1}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.flex-wrap{flex-wrap:wrap}.border{border-style:var(--tw-border-style);border-width:1px}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.ease-in-out{--tw-ease:var(--ease-in-out);transition-timing-function:var(--ease-in-out)}}:root{--ink:#20302b;--cream:#f7f2e8;--paper:#fffdf7;--green:#226a55;--orange:#e96e39}*{box-sizing:border-box}.gasflare-status{z-index:30;top:max(8px, env(safe-area-inset-top));pointer-events:none;justify-items:end;gap:4px;display:grid;position:fixed;right:10px}.gf-badge{pointer-events:auto;color:#fff;min-height:30px;font:inherit;background:#23624deb;border:1px solid #ffffffb8;border-radius:999px;margin:0;padding:6px 11px;font-size:12px;font-weight:800;box-shadow:0 4px 14px #12332833}.gf-note{color:#fff;background:#271f18e0;border-radius:7px;max-width:150px;padding:5px 8px;font-size:11px}body:has(.practice-active) .gasflare-status{display:none}body{color:var(--ink);background:radial-gradient(circle at 15% 10%, #f5c96b55 0 9rem, transparent 9.1rem), radial-gradient(circle at 86% 5%, #72b9a455 0 12rem, transparent 12.1rem), var(--cream);margin:0;font-family:Arial,Hiragino Kaku Gothic ProN,sans-serif}button{font:inherit}.shell{min-height:100vh;padding:38px 18px 30px}header{text-align:center;max-width:720px;margin:0 auto 18px}.eyebrow{color:var(--green);letter-spacing:.16em;margin:0;font-size:13px;font-weight:700}h1{letter-spacing:.12em;color:#173f34;margin:5px 0 0;font-size:clamp(42px,8vw,70px);line-height:1}.lead{color:#5c6d66;margin:12px 0 0}.top-nav{background:#e7e4da;border-radius:999px;gap:4px;margin-top:18px;padding:4px;display:inline-flex}.top-nav a{color:#617069;border-radius:999px;padding:9px 16px;font-size:13px;font-weight:800;text-decoration:none}.top-nav a.active{color:#fff;background:var(--green);box-shadow:0 4px 12px #226a5530}.trainer{background:#fffdf7e8;border:1px solid #d9d1c0;border-radius:30px;max-width:820px;min-height:480px;margin:auto;padding:22px;transition:background .2s;box-shadow:0 24px 70px #4f5d5430}.trainer.is-flashing{background:var(--flash);transition:none}.status-row{color:#64746e;justify-content:space-between;font-size:14px;display:flex}.status-row strong{color:var(--ink);font-size:21px}.intro{text-align:center;align-content:center;place-items:center;gap:10px;min-height:390px;display:grid}.intro h2,.history h2{margin:8px 0 0;font-size:clamp(24px,5vw,34px)}.intro p{color:#65726d;max-width:500px;margin:0 0 15px;line-height:1.8}.ear,.pulse{width:100px;height:100px;color:var(--green);background:#dcece4;border-radius:50%;place-items:center;font-size:48px;display:grid}.pulse{animation:1.3s infinite pulse}@keyframes pulse{50%{opacity:.5}}.primary,.replay{cursor:pointer;border:0;border-radius:999px;padding:14px 26px;font-weight:700}.primary{background:var(--green);color:#fff;box-shadow:0 8px 22px #226a5540}.primary:hover{background:#174f3e;transform:translateY(-1px)}.secondary{color:#42564f;cursor:pointer;background:#fff;border:1px solid #c8cfc9;border-radius:999px;padding:13px 22px;font-weight:700}.stage-select{padding:24px 4px 8px}.stage-home{max-width:720px;margin:auto}.stage-home-card{background:#fffdf7e8;border:1px solid #d9d1c0;border-radius:28px;padding:20px;box-shadow:0 24px 70px #4f5d5430}.stage-switcher{width:100%}.stage-switcher-heading{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.stage-switcher-heading strong{color:var(--green);font-size:17px}.stage-switcher-heading span{color:#7d8883;font-size:11px}.stage-continue{background:#e8f1eb;border-radius:20px;justify-content:space-between;align-items:center;gap:16px;margin-bottom:14px;padding:17px;display:flex}.stage-continue>div{gap:2px;display:grid}.stage-continue small{color:var(--orange);font-size:10px;font-weight:900}.stage-continue strong{color:var(--green);font-size:19px}.stage-continue span{color:#6e7a75;font-size:11px}.stage-continue .primary{white-space:nowrap;padding:12px 21px;text-decoration:none;display:inline-block}.stage-switcher-grid{grid-template-columns:1fr;gap:9px;display:grid}.stage-switcher-grid>a{min-height:78px;color:var(--ink);background:#fff;border:1px solid #d8d3c9;border-radius:17px;grid-template-columns:48px 1fr auto;align-items:center;gap:12px;padding:10px 13px;text-decoration:none;display:grid;position:relative}.stage-switcher-grid>a>span:first-child{color:#fff;background:var(--green);border-radius:14px;place-items:center;width:48px;height:48px;font-size:21px;font-weight:900;display:grid}.stage-switcher-copy{gap:3px;display:grid}.stage-switcher-copy strong{font-size:17px}.stage-switcher-copy small{color:#74807b;font-size:11px}.stage-switcher-grid>a>b{color:var(--green);font-size:12px}.stage-switcher-grid>a.recommended{background:#fffaf0;border:2px solid #d99a33}.stage-switcher-grid>a.recommended:after{content:"●";color:var(--orange);font-size:8px;position:absolute;top:7px;right:8px}.compact-progress{color:#746647;background:#fff1c9;border-radius:12px;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:8px;padding:8px;font-size:11px;display:flex}.stage-dictionary-link{color:var(--green);text-align:center;margin:14px auto 0;font-size:12px;font-weight:900;display:block}.lesson-back{color:var(--green);margin-bottom:12px;font-size:12px;font-weight:900;text-decoration:none;display:inline-block}.continue-panel{background:#e8f1eb;border-radius:22px;justify-content:space-between;align-items:center;gap:18px;margin-bottom:18px;padding:18px 20px;display:flex}.continue-panel div{gap:2px;display:grid}.continue-panel small{color:#617069}.continue-panel strong{color:var(--green);font-size:25px}.stage-grid{grid-template-columns:1fr;gap:9px;display:grid}.stage-card{min-height:72px;color:var(--green);cursor:pointer;text-align:left;background:#fff;border:1px solid #d9d2c5;border-radius:17px;grid-template-columns:48px 1fr auto;align-items:center;gap:12px;padding:10px 14px;display:grid;box-shadow:0 4px 10px #38483f13}.stage-card:hover:not(:disabled){border-color:#86aa9d;transform:translateY(-2px)}.stage-number{color:#fff;background:var(--green);border-radius:14px;place-items:center;width:48px;height:48px;font-size:22px;font-weight:900;display:grid}.stage-copy{gap:3px;display:grid}.stage-copy strong{font-size:17px}.stage-copy small{color:#718079;font-size:11px}.stage-mark{font-size:20px}.stage-card.locked{color:#9c9b96;box-shadow:none;cursor:not-allowed;background:#eceae5}.stage-card.locked .stage-number{background:#aaa9a4}.unlock-note{text-align:center;color:#78817d;margin:16px 0 0;font-size:13px}.stage-intro{text-align:center;align-content:center;place-items:center;gap:16px;min-height:400px;display:grid}.new-label{color:var(--orange);letter-spacing:.12em;margin:0;font-weight:800}.new-colors{flex-wrap:wrap;justify-content:center;gap:14px;display:flex}.new-colors button{color:#fff;cursor:pointer;border:5px solid #fff;border-radius:30px;align-content:center;place-items:center;width:170px;height:170px;transition:transform .2s,box-shadow .2s,outline .2s;display:grid;box-shadow:0 12px 30px #42424230}.new-colors button.playing{outline:7px solid #f3d47b88;transform:scale(1.08);box-shadow:0 18px 42px #38453e55}.new-colors button span{text-shadow:0 2px 5px #0008;font-size:27px;font-weight:900}.new-colors button small{text-shadow:0 1px 4px #0008;margin-top:5px;font-weight:700}.stage-intro>p:not(.new-label){color:#65726d;margin:0}.intro-actions{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.question-card{background:#fff;border:2px dashed #cbc1ac;border-radius:24px;align-content:center;place-items:center;gap:14px;height:240px;margin:18px 0 20px;display:grid}.question-card>span{font-size:92px;font-weight:800;line-height:1}.answer-color-active .question-card,.answer-color-active .sound-panel{background:var(--answer-color);border-color:#fff;box-shadow:inset 0 0 0 2px #ffffff70,0 10px 28px #3334}.answer-color-active .question-card>span,.answer-color-active .sound-panel strong,.answer-color-active .sound-panel small{color:#fff;text-shadow:0 2px 6px #0009}.replay{color:#315248;background:#e9eee9;padding:9px 18px}.choices{grid-template-columns:repeat(auto-fit,minmax(96px,1fr));gap:12px;display:grid}.color-choice{aspect-ratio:1.15;cursor:pointer;border:3px solid #fffa;border-radius:19px;transition:transform .15s;box-shadow:0 6px 14px #4a4a4a25}.color-choice:hover{transform:translateY(-3px)}.color-choice:disabled{cursor:default;transform:none}.color-choice span{color:#fff;text-shadow:0 1px 5px #0009;font-weight:800}.history{background:#ffffffa8;border-radius:24px;max-width:820px;margin:22px auto 0;padding:20px 24px}.history h2{font-size:18px}.history>p{color:#78837e;margin:3px 0 0;font-size:11px}.history-line{height:150px;margin-top:7px;padding-left:18px;position:relative}.history-line svg{width:100%;height:100%;overflow:visible}.chart-grid{stroke:#d8ded9;stroke-width:1px;stroke-dasharray:4 5}.chart-line{fill:none;stroke:var(--orange);stroke-width:4px;stroke-linecap:round;stroke-linejoin:round}.chart-dot{fill:#fff;stroke:var(--orange);stroke-width:3px}.axis-high,.axis-low{color:#7b8781;font-size:10px;position:absolute;left:0}.axis-high{top:20px}.axis-low{bottom:16px}.dictionary-shell{max-width:720px;margin:auto}.dictionary-shell h1{letter-spacing:.04em;font-size:clamp(36px,10vw,58px)}.dictionary-card,.coming-soon{background:#fffdf7e8;border:1px solid #d9d1c0;border-radius:25px;padding:18px;box-shadow:0 18px 48px #4f5d5425}.dictionary-heading{color:#6b7772;justify-content:space-between;align-items:center;margin-bottom:12px;font-size:12px;display:flex}.dictionary-heading span{color:var(--green);background:#e5f0e9;border-radius:999px;padding:6px 10px;font-weight:900}.dictionary-heading p{margin:0}.swatch-list{gap:9px;display:grid}.swatch-list button{width:100%;min-height:76px;color:var(--ink);text-align:left;cursor:pointer;background:#fff;border:1px solid #e2ddd2;border-radius:18px;grid-template-columns:54px 1fr auto;align-items:center;gap:12px;padding:9px 12px;transition:transform .15s,box-shadow .15s;display:grid}.swatch-list button:active,.swatch-list button.playing{transform:scale(.985);box-shadow:inset 0 0 0 3px #e4bc5e}.swatch{border:3px solid #fff;border-radius:16px;width:54px;height:54px;box-shadow:0 4px 12px #3333}.swatch-copy{gap:2px;display:grid}.swatch-copy strong{font-size:18px}.swatch-copy small{color:#84908b}.play-mark{color:var(--green);font-size:12px;font-weight:900}.coming-soon{box-shadow:none;background:#f1eee5;margin-top:16px}.coming-soon>div{border-top:1px solid #d8d3c9;align-items:center;gap:13px;padding:12px 0;display:flex}.coming-soon>div>span{color:var(--orange);font-weight:900}.coming-soon p{margin:0}.coming-soon div p{gap:3px;display:grid}.coming-soon small{color:#73807b}.course-banner{color:#fff;background:var(--green);border-radius:21px;gap:4px;margin-top:16px;padding:18px;text-decoration:none;display:grid}.course-banner span{opacity:.8;font-size:11px}.course-banner strong{font-size:17px}.course-shell,.lesson-shell{max-width:720px;margin:auto}.course-shell h1,.lesson-shell h1{letter-spacing:.03em;font-size:clamp(36px,10vw,58px)}.course-list{gap:11px;display:grid}.habit-panel{background:#fff1c9;border-radius:21px;grid-template-columns:auto auto auto 1fr;align-items:center;gap:13px;margin-bottom:14px;padding:14px;display:grid}.habit-panel>div{grid-template-columns:auto auto;align-items:center;column-gap:5px;display:grid}.habit-panel>div span{grid-row:1/3;font-size:22px}.habit-panel>div strong{font-size:21px;line-height:1}.habit-panel>div small{color:#766e5d;font-size:9px}.habit-panel p{color:#71684f;border-left:1px solid #d7c797;margin:0;padding-left:12px;font-size:12px;line-height:1.6}.course-step{min-height:98px;color:var(--ink);background:#fff;border:1px solid #d9d2c5;border-radius:21px;grid-template-columns:52px 1fr auto;align-items:center;gap:12px;padding:13px;text-decoration:none;display:grid;box-shadow:0 7px 18px #38483f16}.course-step>span:nth-child(2){gap:5px;display:grid}.course-step em{color:var(--orange);letter-spacing:.08em;font-size:10px;font-style:normal;font-weight:900}.course-step strong{font-size:17px}.course-step small{color:#6f7c77;line-height:1.5}.course-step b{color:var(--green);white-space:nowrap;font-size:12px}.course-number{color:#fff;background:var(--green);border-radius:50%;place-items:center;width:48px;height:48px;font-size:20px;font-weight:900;display:grid}.course-step.early-access{background:#fffaf0;border-style:dashed}.course-step.early-access .course-number{background:#b9853a}.course-step.is-recommended{border:2px solid #d99a33;box-shadow:0 8px 24px #d99a3330}.course-step.is-recommended em{color:#a76212}.course-step.locked{color:#999;box-shadow:none;background:#eceae5}.course-step.locked .course-number{background:#aaa9a4;font-size:15px}.name-rule{background:#f2e8cf;border-radius:21px;margin-top:16px;padding:18px}.name-rule h2{margin:0 0 7px;font-size:16px}.name-rule p{color:#666b67;margin:0;font-size:13px;line-height:1.8}.lesson-card{background:#fffdf7e8;border:1px solid #d9d1c0;border-radius:25px;min-height:520px;padding:16px;box-shadow:0 18px 48px #4f5d5425}.lesson-start{text-align:center;align-content:center;place-items:center;gap:13px;min-height:470px;display:grid}.lesson-start h2{margin:0;font-size:25px}.lesson-start p{color:#68746f;max-width:470px;margin:0 0 8px;line-height:1.8}.lesson-start .ear{width:112px;font-size:24px;font-weight:900}.support-message{background:#fff0c9;border-radius:14px;padding:10px 13px;font-weight:800;color:#77561f!important}.review-panel{gap:7px;width:100%;margin:4px 0 7px;display:grid}.review-panel>strong{color:var(--green);font-size:15px}.review-panel>small{color:#74807b}.review-colors{grid-template-columns:repeat(auto-fit,minmax(72px,1fr));gap:7px;width:100%;display:grid}.review-colors button{color:#fff;text-shadow:0 1px 4px #0009;border:3px solid #fff;border-radius:13px;min-height:54px;padding:7px 4px;font-weight:900;box-shadow:0 4px 10px #3332}.lesson-status{color:#67736e;justify-content:space-between;font-weight:800;display:flex}.sound-panel{width:100%;height:190px;color:var(--green);cursor:pointer;background:#fff;border:2px dashed #cbc1ac;border-radius:22px;align-content:center;place-items:center;gap:12px;margin:13px 0;display:grid}.sound-panel strong{font-size:45px}.sound-panel small{color:#7a8781}.lesson-colors{grid-template-columns:repeat(3,1fr);gap:9px;display:grid}.lesson-colors button{aspect-ratio:1.12;color:#fff;text-shadow:0 1px 4px #0008;border:3px solid #fff;border-radius:16px;align-content:center;place-items:center;gap:4px;font-weight:900;display:grid;box-shadow:0 5px 12px #3332}.lesson-colors button small,.review-colors button small{font-size:11px}.review-colors button{align-content:center;place-items:center;gap:3px;display:grid}.method-note{background:#eef4e9;border-radius:18px;grid-template-columns:1fr auto;align-items:center;gap:14px;margin-bottom:14px;padding:15px;display:grid}.method-note strong{color:var(--green)}.method-note p{color:#68756f;margin:5px 0 0;font-size:12px;line-height:1.7}.method-note .secondary{padding:10px 14px;font-size:12px}.modal-backdrop{z-index:100;background:#17221dc9;place-items:center;padding:18px;display:grid;position:fixed;inset:0;overflow-y:auto}.method-modal{background:var(--paper);border-radius:24px;width:min(620px,100%);max-height:calc(100vh - 36px);padding:25px;position:relative;overflow-y:auto;box-shadow:0 24px 80px #0007}.method-modal h2{margin:5px 38px 18px 0;font-size:27px}.method-modal h3{color:var(--green);margin:18px 0 5px;font-size:16px}.method-modal p{color:#5f6d67;line-height:1.8}.modal-close{color:#3e514a;background:#e8ebe6;border:0;border-radius:50%;width:38px;height:38px;font-size:22px;position:absolute;top:14px;right:14px}.simple-solfa-map{grid-template-columns:repeat(5,1fr);gap:5px;display:grid}.simple-solfa-map span{color:#e9ecea;text-align:center;background:#303a36;border-radius:11px;padding:8px 3px;font-size:10px}.simple-solfa-map b{color:#fff;margin-top:3px;font-size:15px;display:block}.method-caution{background:#fff0c9;border-radius:13px;padding:11px 13px;font-weight:800;color:#72531e!important}.method-source{font-size:11px}.method-source a{color:var(--green)}.answer-hint{text-align:center;color:var(--orange);margin:12px 0 0;font-weight:900}.answer-slots{justify-content:center;gap:10px;margin:8px 0 14px;display:flex}.answer-slots span{width:64px;height:55px;color:var(--green);background:#fff;border:2px solid #d9d4c9;border-radius:14px;place-items:center;font-size:18px;font-weight:900;display:grid}.answer-slots span.current{border-color:var(--orange);box-shadow:0 0 0 4px #e96e3920}.note-buttons{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.note-buttons button{border:1px solid #d8d3c9;border-radius:13px;min-height:58px;font-weight:900}.note-buttons .white{color:#34443e;background:#fff}.note-buttons .black{color:#fff;background:#2e3734}.link-button{text-decoration:none;display:inline-block}.mini-lesson-select{padding:4px}.mini-lesson-list{gap:8px;display:grid}.mini-lesson-list>button{text-align:left;min-height:66px;color:var(--ink);cursor:pointer;background:#fff;border:1px solid #ded8cc;border-radius:16px;grid-template-columns:42px 1fr auto;align-items:center;gap:11px;padding:8px 12px;display:grid}.mini-lesson-list>button>span{color:#fff;background:var(--green);border-radius:13px;place-items:center;width:42px;height:42px;font-weight:900;display:grid}.mini-lesson-list p{gap:3px;margin:0;display:grid}.mini-lesson-list small{color:#74807b}.mini-lesson-list b{color:var(--green);font-size:20px}.mini-lesson-list button.locked{color:#999;cursor:not-allowed;background:#eeece7}.mini-lesson-list button.locked>span{background:#aaa9a4}.note-name-strip{grid-template-columns:repeat(6,1fr);gap:4px;margin-bottom:8px;display:grid}.note-name-strip span{border-radius:9px;place-items:center;min-height:34px;font-size:11px;font-weight:900;display:grid}.note-name-strip .white{color:#34443e;background:#fff;border:1px solid #ddd8ce}.note-name-strip .black{color:#fff;background:#2e3734}.name-reminder{color:#6d7974;text-align:center;margin:0 0 14px;font-size:12px}.single-note-card{min-height:560px}.single-note-select{padding:4px}.single-note-select .continue-panel div span{color:#6f7c77;font-size:11px}.single-note-policy{color:#5f6e68;background:#eef4e9;border-radius:17px;margin:0 0 16px;padding:13px 15px;font-size:12px;line-height:1.8}.absolute-parts{gap:15px;display:grid}.absolute-part{background:#fff;border:1px solid #ddd7cb;border-radius:21px;padding:14px}.absolute-part-heading{grid-template-columns:auto 1fr;align-items:center;gap:11px;margin-bottom:10px;display:grid}.absolute-part-heading>span{color:#fff;background:var(--green);border-radius:10px;padding:7px 9px;font-size:10px;font-weight:900}.absolute-part-heading h2{margin:0;font-size:17px}.absolute-part-heading p{color:#75817c;margin:3px 0 0;font-size:11px}.absolute-lesson-list{gap:7px;display:grid}.absolute-lesson-list button{min-height:62px;color:var(--ink);text-align:left;cursor:pointer;background:#fffdf8;border:1px solid #ded8cc;border-radius:15px;grid-template-columns:38px 1fr auto;align-items:center;gap:10px;padding:7px 11px;display:grid}.absolute-lesson-list button>span{color:#fff;background:var(--green);border-radius:12px;place-items:center;width:38px;height:38px;font-weight:900;display:grid}.absolute-lesson-list button p{gap:2px;margin:0;display:grid}.absolute-lesson-list button small{color:#75817c}.absolute-lesson-list button b{color:var(--green)}.absolute-lesson-list button.locked{color:#999;cursor:not-allowed;background:#efede8}.absolute-lesson-list button.locked>span{background:#aaa9a4}.single-note-history{background:#f8f5ed;border-radius:20px;padding:16px}.absolute-parts+.single-note-history{margin-top:16px}.single-note-history>div{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.single-note-history h2{margin:0;font-size:17px}.single-note-history p{color:#74807b;margin:0;font-size:11px}.single-note-history p strong{color:var(--orange);font-size:18px}.single-note-chart{height:145px;margin-top:5px;padding-left:10px;position:relative}.single-note-chart svg{width:100%;height:100%;overflow:visible}.single-note-chart .chart-max,.single-note-chart .chart-min{color:#7b8781;font-size:9px;position:absolute;left:0}.single-note-chart .chart-max{top:21px}.single-note-chart .chart-min{bottom:16px}.single-note-empty-history{color:#7b8781;text-align:center;margin:22px 0 12px;font-size:12px}.single-note-play{min-height:520px}.single-note-status{color:#708079;grid-template-columns:1fr auto 1fr;align-items:center;gap:10px;font-size:12px;font-weight:800;display:grid}.single-note-status strong{color:var(--green);font-size:24px}.single-note-status span:last-child{text-align:right}.single-note-question-progress{background:#e5e3da;border-radius:999px;height:9px;margin:10px 0 12px;overflow:hidden}.single-note-question-progress span{border-radius:inherit;background:linear-gradient(90deg, var(--green), #e7b23e);height:100%;transition:width .18s;display:block}.single-note-sound{width:100%;height:210px;color:var(--green);cursor:pointer;background:#fff;border:2px dashed #cbc1ac;border-radius:24px;align-content:center;place-items:center;gap:4px;display:grid}.single-note-sound>strong{font-size:64px;line-height:1;animation:.35s sound-arrives}@keyframes sound-arrives{0%{opacity:.25;transform:scale(.72)}65%{transform:scale(1.1)}}.single-note-sound>span{color:var(--ink);font-size:20px;font-weight:900}.single-note-sound>small{color:#7b8781}.single-note-sound:disabled{color:#84938d;cursor:default}.single-note-buttons{grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px;display:grid}.single-note-buttons button{cursor:pointer;border-radius:15px;align-content:center;place-items:center;gap:2px;min-height:70px;padding:8px 3px;display:grid;box-shadow:0 5px 12px #3332}.single-note-buttons button.white{color:#34443e;background:#fff;border:1px solid #d8d3c9}.single-note-buttons button.black{color:#fff;background:#2e3734;border:1px solid #202724}.single-note-buttons button:disabled{cursor:default}.single-note-buttons strong{font-size:18px}.single-note-buttons small{opacity:.7;font-size:9px}.single-note-play.octave-mode .single-note-buttons button{min-height:52px}.single-note-result{text-align:center;align-content:center;place-items:center;gap:8px;min-height:510px;display:grid}.single-note-result.has-review{align-content:start;width:100%;padding-top:12px}.single-note-result h2{margin:0;font-size:24px}.single-note-result h2 strong{color:var(--orange);font-size:54px}.single-note-result>p:not(.eyebrow,.support-message){color:#68746f;max-width:470px;margin:0;line-height:1.7}.single-note-result>a{color:var(--green);font-size:12px}.attempt-streak{border-radius:14px;justify-content:center;align-items:center;gap:10px;min-width:160px;margin:5px 0 10px;padding:9px 14px;font-size:11px;font-weight:900;display:flex}.attempt-streak.success{color:#226a55;background:#e4f3e9}.attempt-streak.failure{color:#9a4b3e;background:#fae8e3}.attempt-streak strong{font-size:19px}.mistake-review{text-align:left;background:#f5f1e7;border-radius:20px;width:100%;padding:15px}.mistake-review-heading{justify-content:space-between;align-items:center;gap:14px;margin-bottom:11px;display:flex}.mistake-review-heading h3{margin:0;font-size:18px}.mistake-review-heading p{color:#738079;margin:3px 0 0;font-size:11px}.mistake-review-heading>strong{color:#fff;background:var(--orange);border-radius:999px;place-items:center;min-width:50px;height:34px;padding:0 9px;font-size:13px;display:grid}.mistake-list{gap:10px;display:grid}.mistake-card{background:#fff;border:1px solid #ddd6c9;border-radius:17px;padding:11px}.mistake-card h4{color:#6d7974;margin:0 0 7px;font-size:11px}.staff-comparison{grid-template-columns:1fr auto 1fr;align-items:center;gap:7px;display:grid}.staff-comparison>span{color:var(--orange);font-size:22px;font-weight:900}.staff-answer{min-width:0;color:var(--ink);cursor:pointer;background:#fffdf8;border:1px solid #ddd8ce;border-radius:14px;place-items:center;padding:8px;display:grid}.staff-answer>span{color:var(--green);font-size:10px;font-weight:900}.staff-answer svg{width:100%;max-width:180px;height:100px;overflow:visible}.staff-line,.staff-ledger{stroke:#4e5a55;stroke-width:1.5px}.staff-clef{fill:#33443e;font-family:Noto Music,Times New Roman,serif;font-size:46px}.staff-accidental{fill:#33443e;font-size:20px;font-weight:800}.staff-notehead{fill:#20302b}.staff-answer strong{font-size:15px}.staff-answer small{color:#83908a;margin-top:2px;font-size:8px}.perfect-review{color:var(--green);text-align:center;background:#e4f3e9;border-radius:15px;margin:8px 0 2px;padding:16px;font-weight:900}.result-chart{width:100%;max-width:520px}footer{color:#75817d;text-align:center;max-width:820px;margin:18px auto 0;font-size:11px;line-height:1.6}footer p{margin:3px}.audio-gate-open{overflow:hidden}.audio-gate-backdrop{z-index:300;padding:max(18px, env(safe-area-inset-top)) 18px max(18px, env(safe-area-inset-bottom));background:#17221de8;place-items:center;display:grid;position:fixed;inset:0;overflow-y:auto}.audio-gate{background:var(--paper);text-align:center;border-radius:26px;justify-items:center;gap:10px;width:min(420px,100%);padding:28px 22px;display:grid;box-shadow:0 24px 80px #0008}.audio-gate-icon{color:#fff;background:var(--green);border-radius:50%;place-items:center;width:72px;height:72px;font-size:36px;font-weight:900;display:grid;box-shadow:0 8px 22px #315d4d4d}.audio-gate .eyebrow{margin:3px 0 -4px}.audio-gate h2{margin:0;font-size:25px}.audio-gate>p:not(.eyebrow,.audio-gate-error){color:#66746e;margin:0;line-height:1.8}.audio-gate .primary{width:100%;margin-top:5px}.audio-gate .primary:disabled{opacity:.65;cursor:wait}.audio-gate>small{color:#7a8781;line-height:1.6}.audio-gate-error{color:#a34536;margin:0;font-size:12px;font-weight:800}@media (width<=560px){.shell{padding:18px 9px 26px}h1{font-size:44px}.lead{font-size:14px}.trainer{border-radius:22px;min-height:440px;padding:12px}.continue-panel{text-align:center;flex-direction:column;align-items:stretch}.stage-select{padding-top:15px}.stage-card{min-height:68px}.new-colors button{width:135px;height:135px}.question-card{height:190px}.choices{grid-template-columns:repeat(3,1fr);gap:8px}.color-choice{border-radius:14px}.dictionary-card,.coming-soon{border-radius:21px;padding:12px}.swatch-list button{grid-template-columns:52px 1fr auto;padding:8px}.swatch{width:50px;height:50px}.play-mark{text-align:right;max-width:72px}.top-nav a{padding:8px 11px;font-size:11px}.course-step{grid-template-columns:48px 1fr}.course-step b{grid-column:2}.lesson-card{border-radius:21px;padding:11px}.sound-panel{height:160px}.lesson-colors{grid-template-columns:repeat(3,1fr)}.method-note{text-align:center;grid-template-columns:1fr}.method-modal{padding:20px 15px}.simple-solfa-map,.note-buttons{grid-template-columns:repeat(3,1fr)}.single-note-card{min-height:520px}.single-note-play{grid-template-rows:auto auto minmax(180px,34dvh) 1fr;align-content:start;min-height:calc(100dvh - 12px);display:grid}.single-note-sound{border-radius:18px;height:100%;min-height:180px}.single-note-buttons{grid-template-columns:repeat(3,1fr);gap:6px}.single-note-buttons button{border-radius:13px;min-height:60px}.single-note-play.octave-mode{grid-template-rows:auto auto minmax(130px,23dvh) 1fr}.single-note-play.octave-mode .single-note-buttons{grid-template-columns:repeat(4,1fr)}.single-note-play.octave-mode .single-note-buttons button{min-height:47px;padding:4px 2px}.single-note-play.octave-mode .single-note-buttons strong{font-size:15px}.single-note-result.has-review{padding-top:4px}.mistake-review{border-radius:17px;padding:10px}.mistake-card{padding:8px}.staff-comparison{gap:4px}.staff-answer{padding:5px 3px}.staff-answer svg{height:84px}.staff-comparison>span{font-size:16px}.practice-active .single-note-card{min-height:100dvh}.practice-active .single-note-play{min-height:calc(100dvh - 12px)}.practice-active .single-note-status{display:grid}.habit-panel{grid-template-columns:repeat(3,1fr)}.audio-gate{border-radius:23px;padding:24px 18px}.habit-panel p{border-top:1px solid #d7c797;border-left:0;grid-column:1/4;padding:10px 0 0}.stage-home{padding:18px 9px 26px}.stage-home-card{border-radius:22px;padding:12px}.stage-continue{text-align:center;flex-direction:column;align-items:stretch}.stage-continue .primary{text-align:center}.practice-active{padding:5px}.practice-active>header,.practice-active>.history,.practice-active>footer,.practice-active .status-row,.practice-active .lesson-status{display:none}.practice-active .trainer,.practice-active .lesson-card{min-height:100dvh;box-shadow:none;background:0 0;border:0;border-radius:0;padding:6px}.practice-active .question-card,.practice-active .sound-panel{height:34dvh;margin:0 0 9px}.practice-active .choices,.practice-active .lesson-colors,.practice-active .note-buttons{gap:6px}.practice-active .trainer.color-practice-card,.practice-active .lesson-card.color-practice-card{grid-template-rows:minmax(130px,34dvh) minmax(0,1fr);gap:6px;height:calc(100dvh - 10px);min-height:0;display:grid;position:relative;overflow:hidden}.practice-active .color-practice-card .question-card,.practice-active .color-practice-card .sound-panel{width:100%;height:100%;min-height:0;margin:0}.practice-active .color-practice-card .choices,.practice-active .color-practice-card .lesson-colors{grid-template-columns:repeat(var(--choice-columns,3), minmax(0, 1fr));grid-auto-rows:minmax(0,1fr);gap:clamp(3px,1.2vw,6px);width:100%;height:100%;min-height:0}.practice-active .color-practice-card .color-choice,.practice-active .color-practice-card .lesson-colors button{aspect-ratio:auto;border-width:2px;border-radius:clamp(8px,2.8vw,14px);width:100%;height:100%;min-height:0;font-size:clamp(9px,2.8vw,14px)}.practice-active .color-practice-card .lesson-colors button small{font-size:clamp(6px,1.9vw,10px);line-height:1.05}.practice-active .color-practice-card>.answer-hint{z-index:2;color:#fff;background:#20302bcc;border-radius:999px;margin:0;padding:4px 8px;font-size:9px;position:absolute;bottom:9px;right:10px}.dictionary-shell header{margin-bottom:10px}.dictionary-shell .top-nav{margin-top:10px}.dictionary-card{padding:9px}.dictionary-heading{margin-bottom:6px}.swatch-list{grid-template-columns:repeat(var(--choice-columns,4), minmax(0, 1fr));gap:5px}.swatch-list button{text-align:center;border-radius:11px;grid-template-columns:1fr;justify-items:center;gap:2px;min-width:0;min-height:0;padding:4px}.swatch{aspect-ratio:1;border-width:2px;border-radius:10px;width:min(100%,48px);height:auto}.swatch-copy{gap:0}.swatch-copy strong{font-size:clamp(8px,2.6vw,12px)}.swatch-copy small,.play-mark{display:none}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-ease{syntax:"*";inherits:false}