*,:after,:before{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:rgba(59,130,246,.5);--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }::backdrop{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:rgba(59,130,246,.5);--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }/*
! tailwindcss v3.4.19 | MIT License | https://tailwindcss.com
*/*,:after,:before{box-sizing:border-box;border:0 solid #e5e7eb}:after,:before{--tw-content:""}:host,html{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;-o-tab-size:4;tab-size:4;font-family:var(--font-sans),system-ui,sans-serif;font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent}body{margin:0;line-height:inherit}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;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,pre,samp{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-feature-settings:normal;font-variation-settings:normal;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-feature-settings:inherit;font-variation-settings:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dd,dl,figure,h1,h2,h3,h4,h5,h6,hr,p,pre{margin:0}fieldset{margin:0}fieldset,legend{padding:0}menu,ol,ul{list-style:none;margin:0;padding:0}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder,textarea::-moz-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}[role=button],button{cursor:pointer}:disabled{cursor:default}audio,canvas,embed,iframe,img,object,svg,video{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}.fixed{position:fixed}.absolute{position:absolute}.relative{position:relative}.-right-2{right:-.5rem}.-top-2{top:-.5rem}.mx-auto{margin-left:auto;margin-right:auto}.mt-0\.5{margin-top:.125rem}.mt-1{margin-top:.25rem}.mt-2{margin-top:.5rem}.mt-3{margin-top:.75rem}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.flex{display:flex}.table{display:table}.grid{display:grid}.h-10{height:2.5rem}.h-12{height:3rem}.h-16{height:4rem}.h-2{height:.5rem}.h-6{height:1.5rem}.h-9{height:2.25rem}.min-h-14{min-height:3.5rem}.min-h-16{min-height:4rem}.min-h-36{min-height:9rem}.min-h-screen{min-height:100vh}.w-10{width:2.5rem}.w-16{width:4rem}.w-6{width:1.5rem}.w-9{width:2.25rem}.w-fit{width:-moz-fit-content;width:fit-content}.w-full{width:100%}.min-w-14{min-width:3.5rem}.max-w-3xl{max-width:48rem}.flex-1{flex:1 1 0%}.shrink-0{flex-shrink:0}.transform{transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.cursor-not-allowed{cursor:not-allowed}.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}.grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-cols-5{grid-template-columns:repeat(5,minmax(0,1fr))}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-start{align-items:flex-start}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:.25rem}.gap-1\.5{gap:.375rem}.gap-10{gap:2.5rem}.gap-2{gap:.5rem}.gap-2\.5{gap:.625rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}.gap-5{gap:1.25rem}.gap-8{gap:2rem}.self-end{align-self:flex-end}.break-words{overflow-wrap:break-word}.rounded-2xl{border-radius:1rem}.rounded-3xl{border-radius:1.5rem}.rounded-\[2rem\]{border-radius:2rem}.rounded-full{border-radius:9999px}.rounded-xl{border-radius:.75rem}.border{border-width:1px}.border-2{border-width:2px}.border-t{border-top-width:1px}.border-dashed{border-style:dashed}.border-border{border-color:var(--border)}.border-error{border-color:var(--error)}.border-gold{border-color:var(--gold)}.border-primary-green{border-color:var(--primary-green)}.bg-background{background-color:var(--background)}.bg-border{background-color:var(--border)}.bg-gold{background-color:var(--gold)}.bg-pale-green{background-color:var(--pale-green)}.bg-primary-green{background-color:var(--primary-green)}.bg-transparent{background-color:transparent}.bg-warm-cream{background-color:var(--warm-cream)}.p-4{padding:1rem}.p-5{padding:1.25rem}.p-6{padding:1.5rem}.p-7{padding:1.75rem}.px-2{padding-left:.5rem;padding-right:.5rem}.px-3{padding-left:.75rem;padding-right:.75rem}.px-4{padding-left:1rem;padding-right:1rem}.px-5{padding-left:1.25rem;padding-right:1.25rem}.px-6{padding-left:1.5rem;padding-right:1.5rem}.py-1{padding-top:.25rem;padding-bottom:.25rem}.py-1\.5{padding-top:.375rem;padding-bottom:.375rem}.py-10{padding-top:2.5rem;padding-bottom:2.5rem}.py-2{padding-top:.5rem;padding-bottom:.5rem}.py-2\.5{padding-top:.625rem;padding-bottom:.625rem}.py-3{padding-top:.75rem;padding-bottom:.75rem}.py-3\.5{padding-top:.875rem;padding-bottom:.875rem}.py-4{padding-top:1rem;padding-bottom:1rem}.py-6{padding-bottom:1.5rem}.pt-6,.py-6{padding-top:1.5rem}.text-left{text-align:left}.text-center{text-align:center}.font-mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.font-serif{font-family:var(--font-serif),Georgia,serif}.text-2xl{font-size:1.5rem;line-height:2rem}.text-3xl{font-size:1.875rem;line-height:2.25rem}.text-4xl{font-size:2.25rem;line-height:2.5rem}.text-5xl{font-size:3rem;line-height:1}.text-6xl{font-size:3.75rem;line-height:1}.text-7xl{font-size:4.5rem;line-height:1}.text-base{font-size:1rem;line-height:1.5rem}.text-lg{font-size:1.125rem;line-height:1.75rem}.text-sm{font-size:.875rem;line-height:1.25rem}.text-xl{font-size:1.25rem;line-height:1.75rem}.text-xs{font-size:.75rem;line-height:1rem}.font-black{font-weight:900}.font-bold{font-weight:700}.font-normal{font-weight:400}.font-semibold{font-weight:600}.uppercase{text-transform:uppercase}.italic{font-style:italic}.leading-5{line-height:1.25rem}.leading-6{line-height:1.5rem}.leading-7{line-height:1.75rem}.leading-8{line-height:2rem}.leading-tight{line-height:1.25}.tracking-\[0\.22em\]{letter-spacing:.22em}.tracking-tight{letter-spacing:-.025em}.tracking-wide{letter-spacing:.025em}.tracking-wider{letter-spacing:.05em}.tracking-widest{letter-spacing:.1em}.text-border{color:var(--border)}.text-deep-green{color:var(--deep-green)}.text-error{color:var(--error)}.text-gold{color:var(--gold)}.text-muted{color:var(--muted)}.text-primary-green{color:var(--primary-green)}.text-text-dark{color:var(--text-dark)}.text-warm-cream{color:var(--warm-cream)}.underline-offset-2{text-underline-offset:2px}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.opacity-100{opacity:1}.opacity-60{opacity:.6}.opacity-80{opacity:.8}.opacity-90{opacity:.9}.shadow-button{--tw-shadow:0 8px 18px rgba(27,31,35,.08);--tw-shadow-colored:0 8px 18px var(--tw-shadow-color)}.shadow-button,.shadow-card{box-shadow:var(--tw-ring-offset-shadow,0 0 #0000),var(--tw-ring-shadow,0 0 #0000),var(--tw-shadow)}.shadow-card{--tw-shadow:0 14px 34px rgba(27,31,35,.08);--tw-shadow-colored:0 14px 34px var(--tw-shadow-color)}.grayscale-\[25\%\]{--tw-grayscale:grayscale(25%)}.filter,.grayscale-\[25\%\]{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)}.transition-all{transition-property:all;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-colors{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-transform{transition-property:transform;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.\[overflow-wrap\:anywhere\]{overflow-wrap:anywhere}:root{--bg:#f3eee3;--surface:#fcfaf3;--surface2:#ebe4d2;--ink:#1a1c33;--muted:#67647a;--primary:#25307a;--primary-deep:#171f55;--primary-tint:#e2e5f4;--accent:#bc5429;--accent-tint:#f5e2d7;--on-accent:#fff7ee;--border:#ddd3bd;--border-strong:#c5b89d;--error:#a93226;--gold:#a8854c;--font-display:var(--font-gentium,Georgia,serif);--font-ui:var(--font-plex-sans,system-ui,sans-serif);--font-mono:var(--font-plex-mono,ui-monospace,monospace);--pattern-opacity:0.4;--radius-lg:26px;--radius-md:18px;--radius-sm:12px;--background:var(--bg);--primary-green:var(--primary);--deep-green:var(--primary-deep);--soft-green:var(--accent);--pale-green:var(--primary-tint);--warm-cream:var(--surface);--text-dark:var(--ink);--font-sans:var(--font-ui);--font-serif:var(--font-display)}[data-palette=forest]{--bg:#f8f4ec;--surface:#fffdf8;--surface2:#efe8d6;--ink:#1b1f23;--muted:#6f675d;--primary:#0c5a39;--primary-deep:#064126;--primary-tint:#deebe0;--accent:#b07f3a;--accent-tint:#f1e7d2;--on-accent:#fffbf2;--border:#e8dccb;--border-strong:#cdbe9f;--error:#a93226;--gold:#b79762}[data-palette=clay]{--bg:#f7f0e7;--surface:#fefaf4;--surface2:#f0e3d0;--ink:#2a1f1a;--muted:#73645a;--primary:#a4431f;--primary-deep:#762d10;--primary-tint:#f4dfd2;--accent:#2c3e6b;--accent-tint:#dee3f0;--on-accent:#f2f4fc;--border:#e4d6c2;--border-strong:#cbb89d;--error:#a93226;--gold:#b08a4f}[data-theme=dark]{--bg:#12131f;--surface:#1b1d2e;--surface2:#252840;--ink:#efead9;--muted:#9b98ac;--primary:#9aa5ee;--primary-deep:#c9cff8;--primary-tint:#272d55;--accent:#e08456;--accent-tint:#3a2418;--on-accent:#1c0f06;--border:#2e3149;--border-strong:#444866;--error:#e57368;--gold:#cba86b}[data-theme=dark][data-palette=forest]{--bg:#0f1713;--surface:#16211b;--surface2:#1f2d25;--ink:#edeae0;--muted:#96a096;--primary:#74c49a;--primary-deep:#acdfc4;--primary-tint:#1e3b2d;--accent:#cba86b;--accent-tint:#33291a;--on-accent:#1a1103;--border:#273830;--border-strong:#3c5246;--error:#e57368;--gold:#cba86b}[data-theme=dark][data-palette=clay]{--bg:#1a1410;--surface:#241b16;--surface2:#31241c;--ink:#f1e9de;--muted:#a6968a;--primary:#e08456;--primary-deep:#f0b091;--primary-tint:#3a2418;--accent:#9aa5ee;--accent-tint:#272d55;--on-accent:#0e1230;--border:#382a20;--border-strong:#55402f;--error:#e57368;--gold:#cba86b}body,html{margin:0;padding:0;min-height:100%}body{background:var(--bg);color:var(--ink);font-family:var(--font-ui);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;transition:background-color .35s ease,color .35s ease}button{background:none;border:none;cursor:pointer;padding:0}button,input{font:inherit;color:inherit}body:before{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:calc(var(--pattern-opacity) * .16);background-image:radial-gradient(var(--primary) 1.3px,transparent 1.3px),radial-gradient(var(--primary) 1.3px,transparent 1.3px);background-size:26px 26px,26px 26px;background-position:0 0,13px 13px}#__next,main{position:relative;z-index:1}.yoruba-pattern{background-color:var(--bg);background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='96' height='96' viewBox='0 0 96 96'><g fill='none' stroke='%2325307A' stroke-opacity='0.035' stroke-width='1'><path d='M0 48 L48 0 L96 48 L48 96 Z'/><path d='M24 48 L48 24 L72 48 L48 72 Z'/><circle cx='48' cy='48' r='3'/><path d='M0 0 L96 96 M96 0 L0 96' stroke-opacity='0.025'/></g></svg>");background-repeat:repeat}[data-theme=dark] .yoruba-pattern{background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='96' height='96' viewBox='0 0 96 96'><g fill='none' stroke='%23CBA86B' stroke-opacity='0.05' stroke-width='1'><path d='M0 48 L48 0 L96 48 L48 96 Z'/><path d='M24 48 L48 24 L72 48 L48 72 Z'/><circle cx='48' cy='48' r='3'/><path d='M0 0 L96 96 M96 0 L0 96' stroke-opacity='0.03'/></g></svg>")}.app{display:flex;min-height:100vh;max-width:1280px;margin:0 auto}.sidebar{width:232px;flex-shrink:0;padding:36px 20px 28px;gap:28px;position:sticky;top:0;height:100vh}.sidebar,.wordmark{display:flex;flex-direction:column}.wordmark{gap:2px;padding-left:14px}.wordmark-kaa{font-family:var(--font-display);font-size:40px;line-height:1;color:var(--primary);letter-spacing:-.01em}.wordmark-sub{font-size:12px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}.sidenav{display:flex;flex-direction:column;gap:4px;flex:1}.sidenav-item{display:grid;grid-template-columns:20px 1fr;grid-template-rows:auto auto;-moz-column-gap:12px;column-gap:12px;align-items:center;padding:11px 14px;border-radius:var(--radius-sm);text-align:left;color:var(--muted);transition:background-color .18s ease,color .18s ease}.sidenav-item svg{grid-row:span 2}.sidenav-item:hover{background:var(--surface);color:var(--ink)}.sidenav-item.on{background:var(--primary-tint);color:var(--primary)}.sidenav-yo{font-weight:600;font-size:15.5px;line-height:1.25}.sidenav-en{font-size:11.5px;opacity:.75;grid-column:2}.mode-pill{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;margin-left:6px;padding:8px 14px;border-radius:999px;border:1px solid var(--border-strong);background:var(--surface);font-size:13px;font-weight:600;color:var(--ink);transition:border-color .18s ease}.mode-pill:hover{border-color:var(--primary)}.mode-pill-dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}.content{flex:1;min-width:0;display:flex;flex-direction:column}.topbar{display:none}.screen-wrap{flex:1;padding:36px 36px 48px}.tabbar{display:none}.screen{max-width:980px}.screen-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}.screen-title{font-family:var(--font-display);font-size:44px;line-height:1.05;margin:0;color:var(--ink);font-weight:700}.screen-sub{margin:6px 0 0;color:var(--muted);font-size:14.5px}.eyebrow{display:block;font-size:11.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.eyebrow i{font-style:normal;font-weight:500;opacity:.7;text-transform:none;letter-spacing:.02em}.primary-btn{background:var(--primary);color:var(--on-accent);padding:12px 22px;border-radius:999px;font-weight:600;font-size:15px;transition:background-color .18s ease,transform .12s ease}.primary-btn:hover{background:var(--primary-deep)}.primary-btn:active{transform:scale(.97)}.primary-btn.wide{padding:14px 34px}.ghost-btn{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--border-strong);border-radius:999px;padding:9px 16px;font-size:13.5px;font-weight:600;background:var(--surface);transition:border-color .18s ease}.ghost-btn:hover{border-color:var(--primary)}.ghost-btn:disabled{opacity:.45;cursor:default}.ghost-btn.danger:hover{border-color:var(--error);color:var(--error)}.btn-en{font-weight:400;opacity:.65}.link-btn{color:var(--primary);font-weight:600;font-size:13.5px}.link-btn:hover{text-decoration:underline}.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.chip{padding:8px 16px;border-radius:999px;border:1px solid var(--border-strong);background:var(--surface);font-size:14px;font-weight:600;font-variant-numeric:tabular-nums;transition:border-color .15s ease,background-color .15s ease}.chip-on,.chip:hover{border-color:var(--primary)}.chip-on{background:var(--primary);color:var(--on-accent)}.speak-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;color:var(--accent);background:var(--accent-tint);transition:transform .15s ease;flex-shrink:0}.speak-btn:hover{transform:scale(1.08)}.speak-btn.small{width:32px;height:32px}.screen-calc{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(220px,.65fr);gap:28px;align-items:start}.calc-col{display:flex;flex-direction:column;gap:22px;min-width:0}.display-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px 28px 24px;box-shadow:0 2px 14px rgba(0,0,0,.045)}.display-top{display:flex;align-items:baseline;justify-content:space-between;gap:14px}.display-expr{font-family:var(--font-mono);font-size:clamp(34px,4.5vw,52px);line-height:1.1;letter-spacing:-.01em;color:var(--ink);overflow-wrap:anywhere;min-width:0}.display-yoruba{font-family:var(--font-display);font-size:clamp(22px,2.6vw,30px);line-height:1.35;color:var(--primary);margin:14px 0 0;text-wrap:pretty;min-height:1.35em}.display-preview{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 14px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--border-strong)}.display-preview-num{font-family:var(--font-mono);font-size:17px;color:var(--muted)}.display-preview-words{font-family:var(--font-display);font-size:16px;color:var(--muted);font-style:italic}.keypad{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.key{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:72px;border-radius:var(--radius-md);transition:transform .1s ease,background-color .15s ease,box-shadow .15s ease,border-color .15s ease;-webkit-user-select:none;-moz-user-select:none;user-select:none}.key:active{transform:scale(.96)}.key-main{font-size:25px;font-weight:600;line-height:1;font-variant-numeric:tabular-nums}.key-sub{font-size:11px;color:var(--muted);line-height:1.2;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:0 6px}.key-zero{grid-column:span 2}.key-eq{grid-row:span 2;min-height:100%}.kp-soft .key{background:var(--surface);border:1px solid var(--border);box-shadow:0 2px 0 var(--border-strong)}.kp-soft .key:hover{background:var(--surface2)}.kp-soft .key:active{box-shadow:0 0 0 var(--border-strong)}.kp-soft .key-clear,.kp-soft .key-op{background:var(--primary-tint);border-color:var(--primary-tint);color:var(--primary)}.kp-soft .key-clear .key-sub,.kp-soft .key-op .key-sub{color:var(--primary);opacity:.75}.kp-soft .key-eq{background:var(--accent);border-color:var(--accent);box-shadow:0 2px 0 color-mix(in oklab,var(--accent) 70%,#000);color:var(--on-accent)}.kp-soft .key-eq .key-sub{color:var(--on-accent);opacity:.8}.kp-flat .key{background:var(--surface2)}.kp-flat .key:hover{background:var(--surface)}.kp-flat .key-clear,.kp-flat .key-op{background:var(--primary-tint);color:var(--primary)}.kp-flat .key-clear .key-sub,.kp-flat .key-op .key-sub{color:var(--primary);opacity:.75}.kp-flat .key-eq{background:var(--accent);color:var(--on-accent)}.kp-flat .key-eq .key-sub{color:var(--on-accent);opacity:.8}.kp-outlined .key{background:transparent;border:1.5px solid var(--border-strong)}.kp-outlined .key:hover{border-color:var(--ink)}.kp-outlined .key-clear,.kp-outlined .key-op{border-color:var(--primary);color:var(--primary)}.kp-outlined .key-clear .key-sub,.kp-outlined .key-op .key-sub{color:var(--primary);opacity:.75}.kp-outlined .key-eq{border-color:var(--accent);background:var(--accent);color:var(--on-accent)}.kp-outlined .key-eq .key-sub{color:var(--on-accent);opacity:.8}.calc-side{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px 20px 16px;position:sticky;top:36px}.side-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:12px}.side-title{font-family:var(--font-display);font-size:21px;margin:0}.side-title-en{font-family:var(--font-ui);font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}.side-empty{color:var(--muted);font-size:14px;line-height:1.5;margin:18px 0}.side-empty span{font-size:12.5px;opacity:.8}.mini-history{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}.mini-history li+li{border-top:1px solid var(--border)}.mini-entry{display:block;width:100%;text-align:left;padding:11px 4px;border-radius:8px}.mini-entry:hover{background:var(--surface2)}.mini-expr{display:block;font-family:var(--font-mono);font-size:14px}.mini-words{display:block;font-family:var(--font-display);font-size:13.5px;color:var(--primary);margin-top:3px;line-height:1.35}.history-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}.history-entry{display:block;width:100%;text-align:left;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px 22px;transition:border-color .15s ease,transform .12s ease}.history-entry:hover{border-color:var(--primary);transform:translateY(-1px)}.history-row{display:flex;justify-content:space-between;align-items:baseline;gap:14px}.history-expr{font-family:var(--font-mono);font-size:18px}.history-time{font-size:12px;color:var(--muted);flex-shrink:0}.history-words{font-family:var(--font-display);color:var(--primary);font-size:17px;line-height:1.45;margin:8px 0 0;text-wrap:pretty}.history-words em{font-style:italic;color:var(--muted)}.empty-card{background:var(--surface);border:1px dashed var(--border-strong);border-radius:var(--radius-lg);padding:56px 32px;display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center}.empty-mark{font-size:44px;color:var(--border-strong)}.empty-mark,.empty-title{font-family:var(--font-display)}.empty-title{font-size:22px;margin:0}.empty-sub{color:var(--muted);font-size:14px;max-width:360px;margin:0 0 10px}.screen-convert{max-width:720px}.convert-field{display:block;margin-bottom:22px}.field-label{display:block;font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}.convert-field input{width:100%;padding:18px 22px;font-family:var(--font-mono);font-size:32px;background:var(--surface);border:1.5px solid var(--border-strong);border-radius:var(--radius-md);outline:none;transition:border-color .15s ease,box-shadow .15s ease}.convert-field input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-tint)}.convert-result{background:var(--primary);color:var(--on-accent);border-radius:var(--radius-lg);padding:24px 28px;margin-bottom:16px}.convert-result .eyebrow{color:var(--on-accent);opacity:.7}.convert-result-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.convert-result .speak-btn{background:hsla(0,0%,100%,.16);color:var(--on-accent)}.convert-words{font-family:var(--font-display);font-size:clamp(24px,3.4vw,34px);line-height:1.35;margin:0;text-wrap:pretty}.convert-breakdown{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px 22px;margin-bottom:16px}.breakdown-headline{font-size:13.5px;line-height:1.5;color:var(--muted);margin:2px 0 14px}.breakdown-steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.breakdown-steps li{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:8px;border-bottom:1px dashed var(--border)}.breakdown-steps li:last-child{border-bottom:none;padding-bottom:0}.breakdown-term{font-family:var(--font-display);font-size:18px;color:var(--primary);font-weight:600}.breakdown-gloss{font-size:13px;color:var(--muted);text-align:right}.breakdown-result{display:flex;align-items:baseline;gap:8px;margin:14px 0 0;padding-top:12px;border-top:1px solid var(--border-strong);font-family:var(--font-display);font-size:18px;color:var(--ink);text-wrap:pretty}.breakdown-eq{font-family:var(--font-mono);font-size:18px;color:var(--accent);font-weight:700}.convert-digits{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px 22px;margin-bottom:22px}.convert-digit-words{font-family:var(--font-display);font-size:19px;color:var(--ink);margin:6px 0 8px;line-height:1.45}.convert-note{font-size:12.5px;color:var(--muted);margin:0}.score-pill{font-family:var(--font-mono);font-size:15px;font-weight:600;background:var(--accent-tint);color:var(--accent);padding:8px 16px;border-radius:999px}.score-pill i{font-style:normal;opacity:.6}.learn-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px 32px 26px;display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;margin-bottom:26px;box-shadow:0 2px 14px rgba(0,0,0,.045)}.learn-number{font-family:var(--font-mono);font-size:88px;line-height:1;color:var(--ink);font-variant-numeric:tabular-nums}.learn-answer{min-height:44px;display:flex;align-items:center}.learn-word{font-family:var(--font-display);font-size:clamp(24px,3vw,32px);color:var(--primary)}.learn-card-actions{display:flex;gap:12px;align-items:center}.learn-head-pills{display:flex;align-items:center;gap:8px;flex-shrink:0}.streak-pill{font-size:13px;font-weight:700;background:var(--surface2);color:var(--gold);padding:8px 14px;border-radius:999px;border:1px solid var(--border-strong)}.learn-levels{margin-bottom:22px}.learn-word-q{font-family:var(--font-display);font-size:clamp(26px,3.4vw,38px);font-weight:700;line-height:1.25;color:var(--primary);overflow-wrap:anywhere}.learn-answer-num{font-family:var(--font-mono);font-size:36px;font-weight:600;color:var(--primary)}.explain-card{background:var(--surface);border:1px solid var(--gold);border-radius:var(--radius-md);padding:14px 18px;font-size:14px;line-height:1.55;color:var(--muted);margin:-10px 0 26px;text-wrap:pretty}.explain-card b{color:var(--gold)}.explain-card .explain-sum{font-family:var(--font-mono);font-weight:600;color:var(--ink)}.explain-card .explain-word{font-family:var(--font-display);font-weight:600;color:var(--primary)}.quiz-type{display:flex;gap:10px;margin-top:12px}.quiz-type input{flex:1;min-width:0;padding:14px 18px;font-family:var(--font-mono);font-size:24px;background:var(--surface);border:1.5px solid var(--border-strong);border-radius:var(--radius-md);outline:none;transition:border-color .15s ease,box-shadow .15s ease}.quiz-type input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-tint)}.quiz-feedback{font-size:14px;font-weight:700;margin:10px 0 0}.quiz-feedback.ok{color:var(--primary)}.quiz-feedback.err{color:var(--error)}.quiz{margin-bottom:30px}.quiz-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;margin-top:12px}.quiz-choice{padding:16px 18px;border-radius:var(--radius-md);border:1.5px solid var(--border-strong);background:var(--surface);font-family:var(--font-display);font-size:17px;line-height:1.3;transition:border-color .15s ease,background-color .15s ease;text-wrap:pretty}.quiz-choice:hover:not(:disabled){border-color:var(--primary)}.quiz-choice:disabled{cursor:default;opacity:.75}.quiz-right{border-color:var(--primary);background:var(--primary-tint);color:var(--primary);opacity:1!important;font-weight:700}.quiz-wrong{border-color:var(--error);color:var(--error)}.insights{margin-bottom:30px}.insights-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:4px}.insights-title{font-family:var(--font-display);font-size:26px;margin:4px 0 0;color:var(--ink)}.eyebrow.gold{color:var(--gold)}.badge-pill{flex-shrink:0;font-size:12px;font-weight:700;background:var(--primary-tint);color:var(--primary);padding:6px 14px;border-radius:999px}.insight-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px;margin-top:12px}.insight-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px 20px;display:flex;flex-direction:column}.insight-card-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:4px 12px}.insight-card h3{font-family:var(--font-display);font-size:18px;margin:0;color:var(--ink)}.insight-yo{font-size:12.5px;font-weight:700;color:var(--primary)}.insight-detail{font-size:13.5px;line-height:1.55;color:var(--muted);margin:10px 0 0;text-wrap:pretty}.insight-example{font-family:var(--font-display);font-size:14px;color:var(--primary);background:var(--primary-tint);border-radius:10px;padding:9px 14px;margin:12px 0 0;line-height:1.45}.insight-source{font-size:11px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin:12px 0 0}.insight-source a{color:var(--primary);text-decoration:none}.insight-source a:hover{text-decoration:underline}.polish-grid{list-style:none;margin:12px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:8px}.polish-item{gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:9px 12px;font-size:13px;color:var(--muted)}.polish-item,.polish-num{display:flex;align-items:center}.polish-num{justify-content:center;width:24px;height:24px;flex-shrink:0;border-radius:50%;background:var(--primary);color:var(--on-accent);font-size:11px;font-weight:700;font-variant-numeric:tabular-nums}.screen-settings{max-width:640px}.settings-group{margin-bottom:30px}.mode-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}.mode-card{display:flex;flex-direction:column;gap:5px;text-align:left;background:var(--surface);border:1.5px solid var(--border-strong);border-radius:var(--radius-md);padding:18px 20px;transition:border-color .15s ease,background-color .15s ease}.mode-card-on,.mode-card:hover{border-color:var(--primary)}.mode-card-on{background:var(--primary-tint)}.mode-card-name{font-family:var(--font-display);font-size:19px;color:var(--ink)}.mode-card-on .mode-card-name{color:var(--primary)}.mode-card-en{font-size:12.5px;color:var(--muted);line-height:1.45}.mode-card-ex{font-size:13px;font-family:var(--font-display);color:var(--accent);margin-top:4px}.settings-rows{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);margin-top:12px}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px}.setting-row+.setting-row{border-top:1px solid var(--border)}.setting-row-text{display:flex;flex-direction:column;gap:2px}.setting-label{font-weight:600;font-size:15px}.setting-en,.settings-hint{font-size:12.5px;color:var(--muted)}.settings-hint{margin:10px 2px 0}.settings-about{font-size:13px;color:var(--muted);line-height:1.6;border-top:1px solid var(--border);padding-top:20px;text-wrap:pretty}.switch{width:48px;height:28px;border-radius:999px;background:var(--surface2);border:1px solid var(--border-strong);position:relative;transition:background-color .2s ease,border-color .2s ease;flex-shrink:0}.switch-knob{position:absolute;top:50%;left:3px;transform:translateY(-50%);width:20px;height:20px;border-radius:50%;background:var(--muted);transition:left .2s ease,background-color .2s ease}.switch-on{background:var(--primary);border-color:var(--primary)}.switch-on .switch-knob{left:23px;background:var(--on-accent)}.palette-chips{display:flex;gap:8px}.palette-chip{position:relative;width:56px;height:34px;border-radius:10px;overflow:hidden;display:flex;box-shadow:0 0 0 1px var(--border-strong);transition:box-shadow .15s ease,transform .12s ease}.palette-chip:hover{transform:translateY(-1px)}.palette-chip.on{box-shadow:0 0 0 2px var(--primary),0 2px 6px rgba(0,0,0,.15)}.palette-chip i{flex:1}.seg{display:flex;padding:3px;border-radius:999px;background:var(--surface2);border:1px solid var(--border-strong)}.seg button{padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;color:var(--muted);transition:background-color .15s ease,color .15s ease}.seg button.on{background:var(--primary);color:var(--on-accent)}.pattern-slider{-moz-appearance:none;appearance:none;-webkit-appearance:none;width:160px;height:4px;border-radius:999px;background:var(--border-strong);outline:none}.pattern-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer}.pattern-slider::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--primary);border:none;cursor:pointer}.onboard{position:fixed;inset:0;z-index:60;background:var(--bg);display:flex;align-items:center;justify-content:center;padding:24px}.onboard:before{content:"";position:absolute;inset:0;pointer-events:none;opacity:calc(var(--pattern-opacity) * .16);background-image:radial-gradient(var(--primary) 1.3px,transparent 1.3px),radial-gradient(var(--primary) 1.3px,transparent 1.3px);background-size:26px 26px,26px 26px;background-position:0 0,13px 13px}.onboard-inner{position:relative;width:min(620px,100%);background:var(--surface);border:1px solid var(--border);border-radius:32px;padding:48px 44px 32px;box-shadow:0 24px 70px rgba(0,0,0,.16);display:flex;flex-direction:column;min-height:520px}.onboard-step{flex:1;display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px}.onboard-hello{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0}.onboard-wordmark{font-family:var(--font-display);font-size:96px;line-height:1;color:var(--primary);margin:6px 0 4px}.onboard-title{font-family:var(--font-display);font-size:32px;margin:6px 0 10px}.onboard-tag{color:var(--muted);font-size:16px;line-height:1.55;margin:0 0 22px}.onboard-featured{display:flex;flex-direction:column;gap:6px;align-items:center;background:var(--primary-tint);border-radius:var(--radius-md);padding:22px 34px;min-width:300px;animation:onboard-fade .5s ease}@keyframes onboard-fade{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.onboard-featured-n{font-family:var(--font-mono);font-size:40px;color:var(--ink);line-height:1}.onboard-featured-w{font-family:var(--font-display);font-size:23px;color:var(--primary)}.onboard-featured-note{font-size:12.5px;color:var(--muted);font-style:italic}.onboard-modes{width:100%;text-align:left}.onboard-fine{font-size:12.5px;color:var(--muted);margin:16px 0 0}.onboard-features{list-style:none;padding:0;margin:14px 0 0;width:100%;display:flex;flex-direction:column;gap:10px}.onboard-features li{display:flex;align-items:baseline;gap:14px;text-align:left;background:var(--surface2);border-radius:var(--radius-sm);padding:14px 18px}.onboard-features b{font-family:var(--font-display);font-size:18px;color:var(--primary);flex-shrink:0;min-width:86px}.onboard-features span{font-size:13.5px;color:var(--muted);line-height:1.45}.onboard-foot{display:flex;flex-direction:column;gap:18px;margin-top:28px}.onboard-dots{display:flex;gap:7px;justify-content:center}.dot{width:7px;height:7px;border-radius:50%;background:var(--border-strong);transition:background-color .2s ease,transform .2s ease}.dot-on{background:var(--accent);transform:scale(1.25)}.onboard-actions{display:flex;justify-content:center;align-items:center;gap:20px}@media (max-width:900px){.screen-calc{grid-template-columns:1fr}.calc-side{position:static}}@media (max-width:720px){.app{flex-direction:column}.sidebar{display:none}.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 20px 4px}.topbar-kaa{font-family:var(--font-display);font-size:30px;color:var(--primary)}.screen-wrap{padding:18px 18px 110px}.screen-title{font-size:34px}.screen-head{margin-bottom:18px}.tabbar{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:40;background:var(--surface);border-top:1px solid var(--border);padding:8px 6px calc(10px + env(safe-area-inset-bottom))}.tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 2px;min-height:52px;border-radius:10px;color:var(--muted);font-size:10.5px;font-weight:600}.tab.on{color:var(--primary)}.display-card{padding:20px 20px 18px}.key{min-height:64px}.mode-cards{grid-template-columns:1fr}.onboard-inner{padding:36px 24px 24px;min-height:480px}.onboard-wordmark{font-size:72px}.onboard-features b{min-width:72px}.history-expr{font-size:16px}}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}.hover\:scale-\[1\.02\]:hover{--tw-scale-x:1.02;--tw-scale-y:1.02;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.hover\:bg-deep-green:hover{background-color:var(--deep-green)}.hover\:bg-pale-green:hover{background-color:var(--pale-green)}.hover\:underline:hover{text-decoration-line:underline}.focus\:outline-none:focus{outline:2px solid transparent;outline-offset:2px}.focus\:ring-2:focus{--tw-ring-offset-shadow:var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow:var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow,0 0 #0000)}.focus\:ring-primary-green:focus{--tw-ring-color:var(--primary-green)}.active\:scale-90:active{--tw-scale-x:.9;--tw-scale-y:.9}.active\:scale-90:active,.active\:scale-95:active{transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.active\:scale-95:active{--tw-scale-x:.95;--tw-scale-y:.95}.disabled\:opacity-50:disabled{opacity:.5}@media (min-width:640px){.sm\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.sm\:text-5xl{font-size:3rem;line-height:1}}