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@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-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size: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;--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", 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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)}.end{inset-inline-end:var(--spacing)}.contents{display:contents}.hidden{display:none}.table{display:table}.blur{--tw-blur:blur(8px);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}}:root{--font-sans:var(--font-geist-sans), "PingFang SC", "Microsoft YaHei", sans-serif;--font-mono:var(--font-geist-mono), "SFMono-Regular", Consolas, monospace}*{box-sizing:border-box}html{background:#0f1110}body{min-height:100vh;font-family:var(--font-sans);margin:0}button,input{font:inherit}button{color:inherit}:where(button,input,select,textarea,[tabindex]):focus-visible{outline:2px solid var(--accent,#c9ff56);outline-offset:2px}.prototype{--bg:#0f1110;--surface:#151816;--surface-raised:#1b1f1c;--line:#303630;--text:#f3f3ed;--muted:#91988f;--accent:#c9ff56;--accent-ink:#11160a;--danger:#ff765f;--success:#b8f36b;min-height:100vh;color:var(--text);background:var(--bg);grid-template-columns:228px minmax(0,1fr);transition:color .2s,background .2s;display:grid}.prototype.session-prototype{grid-template-columns:minmax(0,1fr)}.prototype :where(main,section,article,aside,header,nav,div,span,label){min-width:0}.prototype :where(h1,h2,h3,p,span,strong,small,b,dd,dt,button,label){overflow-wrap:anywhere}.prototype[data-theme=light]{--bg:#f1f0e9;--surface:#faf9f3;--surface-raised:#fffef8;--line:#cbc9bf;--text:#1e211d;--muted:#6d7169;--accent:#5d771b;--accent-ink:#fffef8;--danger:#a63828;--success:#54740d}.prototype[data-theme=amber]{--bg:#120e08;--surface:#1b150c;--surface-raised:#251b0e;--line:#4a3518;--text:#ffdf9b;--muted:#a98b54;--accent:#ffb52e;--accent-ink:#211407;--danger:#ff725e;--success:#ffd166}.prototype[data-theme=contrast]{--bg:#000;--surface:#080808;--surface-raised:#111;--line:#fff;--text:#fff;--muted:#d0d0d0;--accent:#00ff84;--accent-ink:#000;--danger:#ff4949;--success:#00ff84}.side-rail{border-right:1px solid var(--line);background:var(--surface);z-index:20;flex-direction:column;height:100vh;padding:26px 18px 20px;display:flex;position:sticky;top:0}.brand{text-align:left;cursor:pointer;background:0 0;border:0;align-items:center;gap:12px;padding:0 8px 30px;display:flex}.brand-signal{border:1px solid var(--line);width:42px;height:42px;color:var(--accent);font-family:var(--font-mono);place-items:center;font-weight:800;display:grid}.brand strong{letter-spacing:.16em;font-size:15px;display:block}.brand small{color:var(--muted);font:9px/1.5 var(--font-mono);letter-spacing:.12em;display:block}.side-rail nav{gap:5px;display:grid}.nav-item{width:100%;color:var(--muted);cursor:pointer;text-align:left;background:0 0;border:1px solid #0000;border-radius:3px;align-items:center;gap:13px;padding:12px 11px;display:flex}.nav-item:hover{color:var(--text);background:var(--surface-raised)}.nav-item.active{color:var(--text);background:var(--surface-raised);border-color:var(--line)}.rail-footer{margin-top:auto}.rail-footer p{font:9px var(--font-mono);letter-spacing:.18em;color:var(--muted);margin:24px 10px 0}.main{min-width:0;padding:0 44px 64px}.topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;min-height:112px;display:flex}.topbar>div:first-child{flex:auto}.topbar h1{letter-spacing:-.04em;margin:5px 0 0;font-size:clamp(24px,3vw,38px);font-weight:590;line-height:1.15}.eyebrow,.section-label{color:var(--muted);font:10px/1.4 var(--font-mono);letter-spacing:.16em;text-transform:uppercase;margin:0}.top-actions{flex:none;align-items:center;gap:9px;display:flex}.status{border:1px solid var(--line);color:var(--muted);font:10px var(--font-mono);padding:8px 11px}.status.ready{color:var(--success)}.status.error{color:var(--danger)}.icon-button,.secondary,.primary,.text-button{cursor:pointer;border:0}.icon-button,.secondary{border:1px solid var(--line);background:0 0;padding:10px 14px}.icon-button:hover,.secondary:hover{border-color:var(--muted);background:var(--surface-raised)}.primary{background:var(--accent);color:var(--accent-ink);border:1px solid var(--accent);padding:11px 17px;font-weight:720}.primary:hover{filter:brightness(1.06)}.primary:disabled,.secondary:disabled,.key-pad:disabled,.answer:disabled{opacity:.5;cursor:not-allowed}.secondary.small{padding:8px 11px}.text-button{color:var(--muted);background:0 0;padding:8px 0}.text-button:hover{color:var(--text)}.full{width:100%}.button-row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.page-stack{gap:38px;min-width:0;padding-top:34px;display:grid}.hero-panel{border:1px solid var(--line);background:var(--surface);grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);min-height:308px;display:grid;overflow:hidden}.hero-panel>div:first-child{flex-direction:column;justify-content:center;align-items:flex-start;padding:clamp(28px,5vw,58px);display:flex}.hero-panel h2{letter-spacing:-.055em;max-width:620px;margin:12px 0 18px;font-size:clamp(34px,5vw,64px);line-height:1.06}.hero-panel p:not(.section-label){color:var(--muted);max-width:560px;margin:0 0 28px;line-height:1.75}.hero-signal{border-left:1px solid var(--line);background:repeating-linear-gradient(90deg, transparent 0, transparent 39px, var(--line) 40px)}@supports (color:color-mix(in lab, red, red)){.hero-signal{background:repeating-linear-gradient(90deg, transparent 0, transparent 39px, color-mix(in srgb, var(--line) 30%, transparent) 40px)}}.hero-signal{text-align:center;place-content:center;gap:15px;display:grid}.hero-signal span{font:700 clamp(28px, 4vw, 52px) var(--font-mono);color:var(--accent);letter-spacing:.16em}.hero-signal small{font:10px var(--font-mono);color:var(--muted);letter-spacing:.12em}.metric-strip{border:solid var(--line);border-width:1px 0;grid-template-columns:repeat(4,1fr);display:grid}.metric-strip>div{border-right:1px solid var(--line);gap:5px;padding:18px 22px;display:grid}.metric-strip>div:last-child{border-right:0}.metric-strip span,.metric-strip small{color:var(--muted);font-size:11px}.metric-strip strong{font-size:21px;font-weight:580}.section-heading{justify-content:space-between;align-items:end;gap:18px;margin-bottom:17px;display:flex}.section-heading.compact{align-items:center;margin-bottom:18px}.section-heading h2,.intro-row h2{letter-spacing:-.035em;margin:5px 0 0;font-size:27px}.section-heading h3{margin:3px 0 0}.mode-grid{grid-template-columns:repeat(2,1fr);gap:10px;display:grid}.mode-card{border:1px solid var(--line);background:var(--surface);cursor:pointer;text-align:left;grid-template-columns:46px minmax(0,1fr) auto;align-items:center;gap:16px;min-height:112px;padding:20px;display:grid}.mode-card:hover{background:var(--surface-raised);border-color:var(--muted)}.mode-mark{background:var(--accent);width:42px;height:42px;color:var(--accent-ink);place-items:center;font-weight:800;display:grid}.mode-card strong,.mode-card small{display:block}.mode-card strong{margin-bottom:6px}.mode-card small{color:var(--muted);line-height:1.4}.arrow{color:var(--muted)}.card{background:var(--surface);border:1px solid var(--line)}.learn-layout{grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:16px;min-width:0;padding-top:34px;display:grid}.character-browser{padding:24px}.count{color:var(--muted);font:11px var(--font-mono)}.filter-row{gap:7px;margin-bottom:20px;display:flex}.chip{border:1px solid var(--line);color:var(--muted);cursor:pointer;background:0 0;padding:7px 12px}.chip.active{background:var(--text);color:var(--bg)}.character-grid{grid-template-columns:repeat(6,minmax(70px,1fr));gap:7px;display:grid}.character{aspect-ratio:1.25;border:1px solid var(--line);cursor:pointer;background:0 0;place-content:center;gap:7px;display:grid}.character strong{font-size:24px}.character span{color:var(--muted);font:10px var(--font-mono);letter-spacing:.1em}.character:hover,.character.active{border-color:var(--accent);background:var(--surface-raised)}.character.active span{color:var(--accent)}.character-detail{text-align:center;padding:28px;position:sticky;top:20px}.big-character{margin-top:24px;font-size:104px;font-weight:650;line-height:1.18}.big-code{color:var(--accent);font:27px var(--font-mono);letter-spacing:.2em;margin:18px 0}.timing-line{justify-content:center;align-items:center;gap:9px;height:52px;display:flex}.timing-line i{background:var(--text);height:7px;display:block}.timing-line .dot{width:12px}.timing-line .dash{width:38px}.character-detail .secondary{margin-top:8px}.learn-keyer{border-top:1px solid var(--line);text-align:left;gap:9px;margin-top:22px;padding:16px 0 4px;display:grid}.learn-keyer-heading{color:var(--muted);justify-content:space-between;align-items:center;gap:10px;font-size:12px;display:flex}.learn-keyer-heading strong{color:var(--muted);font:10px var(--font-mono)}.learn-keyer-heading strong.success{color:var(--success)}.learn-keyer-heading strong.error{color:var(--danger)}.learn-keyer-heading strong.progress{color:var(--accent)}.learn-code-input{border:1px solid var(--line);min-height:52px;color:var(--muted);font:18px var(--font-mono);letter-spacing:.14em;text-align:center;place-items:center;display:grid}.learn-code-input.success{border-color:var(--success);color:var(--success)}.learn-code-input.error{border-color:var(--danger);color:var(--danger)}.learn-code-input.progress{border-color:var(--accent);color:var(--accent)}.key-pad.learn-pad{min-height:88px}.learn-pads{gap:7px}.learn-auto-note{color:var(--muted);font:9px/1.5 var(--font-mono);text-align:center}.duration-guide{border:1px solid var(--line);background:var(--bg);padding:13px 13px 11px}.duration-readout{color:var(--muted);grid-template-columns:1fr auto auto;align-items:baseline;gap:12px;font-size:10px;display:grid}.duration-readout strong{color:var(--text);font:12px var(--font-mono)}.duration-readout b{min-width:42px;color:var(--muted);font:11px var(--font-mono);text-align:right}.duration-guide[data-zone=dot] .duration-readout b{color:var(--accent)}.duration-guide[data-zone=dash] .duration-readout b{color:var(--danger)}.duration-track{background:var(--surface-raised);border:1px solid var(--line);height:12px;margin:12px 0 7px;position:relative}.duration-track i{display:block;position:absolute}.duration-fill{background:var(--accent);inset:0 auto 0 0}.duration-guide[data-zone=dash] .duration-fill{background:var(--danger)}.duration-threshold{z-index:2;background:var(--text);opacity:.75;width:1px;top:-5px;bottom:-5px}.duration-needle{z-index:3;background:var(--text);width:2px;height:24px;box-shadow:0 0 0 3px var(--bg);top:-7px;transform:translate(-1px)}@supports (color:color-mix(in lab, red, red)){.duration-needle{box-shadow:0 0 0 3px color-mix(in srgb, var(--bg) 65%, transparent)}}.duration-labels{min-height:13px;color:var(--muted);font:8px var(--font-mono);justify-content:space-between;display:flex;position:relative}.duration-labels span:nth-child(2){white-space:nowrap;position:absolute;transform:translate(-50%)}.detail-note{text-align:left;border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;gap:12px;margin-top:20px;padding:14px 0;font-size:12px;display:flex}.detail-note+.detail-note{margin-top:0}.detail-note strong{color:var(--text)}.intro-row{justify-content:space-between;align-items:end;gap:24px;display:flex}.intro-row>div>p:last-child{color:var(--muted)}.practice-grid{grid-template-columns:repeat(2,1fr);gap:13px;display:grid}.guided-course{min-width:0;overflow:hidden}.guided-course-intro{border-bottom:1px solid var(--line);justify-content:space-between;align-items:end;gap:30px;padding:26px;display:flex}.guided-course-intro h2{margin:6px 0 8px;font-size:29px}.guided-course-intro p:not(.section-label){max-width:650px;color:var(--muted);margin:0;line-height:1.65}.guided-course-summary{justify-items:end;min-width:130px;display:grid}.guided-course-summary strong{font:26px var(--font-mono)}.guided-course-summary span{color:var(--muted);font-size:10px}.guided-lesson-track{grid-template-columns:repeat(6,minmax(170px,1fr));width:100%;max-width:100%;display:grid;overflow-x:auto}.guided-lesson{border-right:1px solid var(--line);flex-direction:column;align-items:flex-start;gap:7px;min-height:220px;padding:18px;display:flex}.guided-lesson:last-child{border-right:0}.guided-lesson-number{border:1px solid var(--line);width:31px;height:31px;color:var(--muted);font:9px var(--font-mono);place-items:center;margin-bottom:8px;display:grid}.guided-lesson>span{color:var(--muted);font-size:10px}.guided-lesson>strong{font-size:27px}.guided-lesson>small{min-height:30px;color:var(--accent);font:10px/1.5 var(--font-mono)}.guided-lesson>button{width:100%;margin-top:auto}.guided-lesson.active{background:var(--accent)}@supports (color:color-mix(in lab, red, red)){.guided-lesson.active{background:color-mix(in srgb, var(--accent) 5%, transparent)}}.guided-lesson.active .guided-lesson-number,.guided-lesson.completed .guided-lesson-number{border-color:var(--accent);color:var(--accent)}.guided-lesson.locked{opacity:.45}.practice-card{border:1px solid var(--line);background:var(--surface);min-height:300px;padding:28px;position:relative;overflow:hidden}.practice-card h2{margin:12px 0;font-size:27px}.practice-card>p:not(.section-label){color:var(--muted);min-height:44px}.practice-index{color:var(--line);font:52px var(--font-mono);position:absolute;top:18px;right:22px}.practice-card dl{border:solid var(--line);border-width:1px 0;grid-template-columns:repeat(3,1fr);margin:28px 0 20px;display:grid}.practice-card dl>div{padding:13px 6px}.practice-card dt{color:var(--muted);margin-bottom:5px;font-size:10px}.practice-card dd{font:12px var(--font-mono);margin:0}.session-main{padding-bottom:30px}.session-shell{border:1px solid var(--line);background:var(--surface);max-width:900px;min-height:calc(100vh - 165px);margin:24px auto 0;padding:24px clamp(20px,5vw,64px) 38px}.session-header{color:var(--muted);font:11px var(--font-mono);justify-content:space-between;align-items:center;gap:12px;display:flex}.progress-track{background:var(--line);height:2px;margin-top:16px}.progress-track i{background:var(--accent);height:100%;transition:width .2s;display:block}.session-prompt{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:320px;display:flex}.play-orb{border:1px solid var(--line);width:96px;height:96px;color:var(--accent);background:var(--surface-raised);cursor:pointer;border-radius:50%;margin:24px 0;font-size:27px}.session-prompt h2{margin:0 0 8px;font-size:28px}.session-prompt>p:last-child{color:var(--muted);font:11px var(--font-mono)}.code-prompt,.character-prompt,.prompt-answer{max-width:100%;color:var(--accent);font:650 clamp(54px, 9vw, 100px)/1.08 var(--font-mono);letter-spacing:.12em;margin:22px 0}.character-prompt{letter-spacing:0}.prompt-answer{letter-spacing:0;gap:14px;display:grid}.prompt-answer 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var(--font-mono);margin-top:8px;display:block}.answer:hover:not(:disabled){border-color:var(--accent)}.answer.correct{border-color:var(--success);color:var(--success)}.answer.wrong{border-color:var(--danger);color:var(--danger)}.feedback{border:1px solid var(--line);align-items:center;gap:14px;margin-top:15px;padding:13px 15px;display:flex}.feedback.success{border-color:var(--success)}.feedback.error{border-color:var(--danger)}.feedback strong{font-family:var(--font-mono)}.feedback .primary{margin-left:auto}.session-keyer{gap:14px;display:grid}.guided-session-cues{border:1px solid var(--line);background:var(--bg);width:min(580px,100%);margin:16px 0 12px;padding:13px}.guided-session-cue-heading{color:var(--muted);font:9px var(--font-mono);justify-content:space-between;align-items:center;display:flex}.guided-session-cue-heading .text-button{font-size:9px}.guided-cue-grid{grid-template-columns:1fr 1fr;gap:7px;margin-bottom:9px;display:grid}.guided-cue-grid button{border:1px solid var(--line);min-height:82px;color:var(--text);text-align:left;cursor:pointer;background:0 0;grid-template-columns:auto 1fr;align-items:center;gap:3px 12px;padding:12px;display:grid}.guided-cue-grid button.current{border-color:var(--accent);background:var(--accent)}@supports (color:color-mix(in lab, red, red)){.guided-cue-grid button.current{background:color-mix(in srgb, var(--accent) 7%, transparent)}}.guided-cue-grid strong{grid-row:1/3;font-size:30px}.guided-cue-grid span{color:var(--accent);font:13px var(--font-mono)}.guided-cue-grid small{color:var(--muted);font-size:9px}.guided-session-cues>.secondary{width:100%}.keying-code{border:1px solid var(--line);min-height:66px;color:var(--accent);font:22px var(--font-mono);letter-spacing:.14em;place-items:center;display:grid}.key-pad.compact{min-height:160px}.dialog-backdrop{z-index:100;background:#000000b3;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.confirm-dialog{width:min(620px,100%);padding:30px}.confirm-dialog h2{margin:8px 0 10px}.confirm-dialog p:not(.section-label){color:var(--muted);line-height:1.6}.danger-action{background:var(--danger);border-color:var(--danger);color:#fff}.lab-layout{grid-template-columns:minmax(0,1fr) 330px;align-items:start;gap:16px;padding-top:34px;display:grid}.lab-workbench{border:1px solid var(--line);background:var(--surface);min-height:680px;padding:clamp(18px,3vw,30px)}.lab-toolbar{justify-content:space-between;align-items:center;gap:12px;display:flex}.segmented{border:1px solid var(--line);padding:3px;display:inline-flex}.segmented button{color:var(--muted);cursor:pointer;background:0 0;border:0;padding:8px 11px}.segmented 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0;display:grid}.sample-log li span{color:var(--muted)}.sample-log li b{color:var(--accent);text-align:right}.empty-copy{color:var(--muted);font-size:12px;line-height:1.6}.result-banner{border:1px solid var(--line);background:var(--surface);grid-template-columns:1.4fr repeat(3,1fr) auto;align-items:center;gap:20px;padding:28px;display:grid}.result-banner>div{border-right:1px solid var(--line)}.result-banner h2{margin:7px 0 0;font-size:42px}.result-banner div>strong{font-size:25px;display:block}.result-banner span{color:var(--muted);font-size:11px}.stats-grid{grid-template-columns:1.6fr 1fr;gap:14px;display:grid}.chart-card,.weak-card{padding:24px}.chart-card h2,.weak-card h2{margin:8px 0 22px}.bars{border-bottom:1px solid var(--line);align-items:end;gap:10px;height:250px;display:flex}.bars i{background:var(--surface-raised);border:1px solid var(--line);flex:1;position:relative}.bars i:last-child{background:var(--accent)}.bars span{text-align:center;width:100%;color:var(--muted);font:8px var(--font-mono);position:absolute;top:-18px}.weak-card>button{border:0;border-top:1px solid var(--line);text-align:left;cursor:pointer;background:0 0;grid-template-columns:38px 1fr auto;width:100%;padding:17px 0;display:grid}.weak-card>button strong{font-size:22px}.weak-card>button span{color:var(--accent);font:12px var(--font-mono)}.weak-card>button small{color:var(--muted)}.stats-tabs{border-bottom:1px solid var(--line);gap:6px;display:flex}.stats-tabs button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;padding:11px 16px}.stats-tabs button.active{color:var(--text);border-color:var(--accent)}.stats-table,.history-list,.mistake-list{padding:24px}.stats-table>button{border:0;border-top:1px solid var(--line);width:100%;color:var(--text);text-align:left;cursor:pointer;background:0 0;grid-template-columns:48px 1fr 70px minmax(170px,auto);align-items:center;gap:12px;padding:14px 0;display:grid}.stats-table>button span{color:var(--accent);font-family:var(--font-mono)}.stats-table>button small{color:var(--muted);text-align:right}.history-list>button{border:0;border-top:1px solid var(--line);width:100%;color:var(--text);text-align:left;cursor:pointer;background:0 0;grid-template-columns:1fr auto 70px;align-items:center;gap:16px;padding:16px 0;display:grid}.history-list>button span{gap:5px;display:grid}.history-list>button small{color:var(--muted)}.mistake-list>div{flex-wrap:wrap;gap:8px;display:flex}.mistake-list button{border:1px solid var(--line);min-width:150px;color:var(--text);text-align:left;cursor:pointer;background:0 0;gap:5px;padding:14px;display:grid}.mistake-list button span{color:var(--accent);font-family:var(--font-mono)}.mistake-list button small{color:var(--muted)}.settings-layout{grid-template-columns:220px minmax(0,760px);gap:16px;padding-top:34px;display:grid}.settings-menu{align-content:start;display:grid}.settings-menu button{border:0;border-left:1px solid var(--line);color:var(--muted);text-align:left;cursor:pointer;background:0 0;padding:13px 15px}.settings-menu button.active{color:var(--text);border-color:var(--accent);background:var(--surface)}.settings-panel{padding:30px}.settings-panel h2{margin:7px 0 8px}.settings-panel>p:not(.section-label){color:var(--muted)}.theme-grid{grid-template-columns:repeat(4,1fr);gap:9px;margin:28px 0;display:grid}.theme-swatch{border:1px solid var(--line);text-align:left;cursor:pointer;background:0 0;padding:8px}.theme-swatch i{background:#0f1110;border:1px solid #303630;height:70px;margin-bottom:9px;display:block}.theme-swatch.light i{background:#f1f0e9;border-color:#cbc9bf}.theme-swatch.amber i{background:#120e08;border-color:#ffb52e}.theme-swatch.contrast i{background:#000;border-color:#fff}.theme-swatch.active{border-color:var(--accent)}.theme-swatch span{font-size:10px}.settings-panel hr{border:0;border-top:1px solid var(--line);margin:30px 0}.setting-row{border-bottom:1px solid 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