/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */@layer theme{:host,:root{--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","Noto Sans",Arial,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;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,::backdrop,:after,:before{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}:host,html{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","Noto Sans",Arial,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;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,pre,samp{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:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}menu,ol,ul{list-style:none}audio,canvas,embed,iframe,img,object,svg,video{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,optgroup,select,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,::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-millisecond-field,::-webkit-datetime-edit-second-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,::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.container{width:100%}@media (min-width:40rem){.container{max-width:40rem}}@media (min-width:48rem){.container{max-width:48rem}}@media (min-width:64rem){.container{max-width:64rem}}@media (min-width:80rem){.container{max-width:80rem}}@media (min-width:96rem){.container{max-width:96rem}}.block{display:block}.grid{display:grid}.hidden{display:none}.table{display:table}}:root{color-scheme:light;--bg:#f7f7f4;--surface:#fff;--ink:#171816;--muted:#6d716a;--line:#dedfd9;--accent:#234b3a;--accent-soft:#e5efe9;--danger:#a13b32;--warn:#9b651d}.dark{color-scheme:dark;--bg:#111412;--surface:#191d1a;--ink:#f1f3ef;--muted:#a9afa7;--line:#343a35;--accent:#95c8ad;--accent-soft:#213a2f;--danger:#f0968d;--warn:#e8b76d}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}a,button,input,select,textarea{outline-offset:3px}:focus-visible{outline:3px solid var(--accent)}@supports (color:color-mix(in lab,red,red)){:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 55%,transparent)}}.shell{min-height:100vh}.nav{z-index:20;border-bottom:1px solid var(--line);background:var(--bg);justify-content:space-between;align-items:center;gap:24px;min-height:64px;padding:0 24px;display:flex;position:sticky;top:0}@supports (color:color-mix(in lab,red,red)){.nav{background:color-mix(in srgb,var(--bg) 88%,transparent)}}.nav{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.brand{letter-spacing:-.025em;font-weight:760}.navlinks{color:var(--muted);align-items:center;gap:18px;font-size:14px;display:flex}.navlinks a:hover{color:var(--ink)}.container{width:min(100% - 32px,1040px);margin:0 auto;padding:48px 0 72px}.narrow{width:min(100% - 32px,720px);margin:0 auto;padding:40px 0 72px}.eyebrow{color:var(--muted);letter-spacing:.1em;text-transform:uppercase;font-size:13px;font-weight:700}h1{letter-spacing:-.045em;margin:8px 0 12px;font-size:clamp(34px,6vw,60px);line-height:1.02}h2{letter-spacing:-.025em;font-size:24px}h2,h3{margin:0}h3{font-size:17px}.lede{max-width:620px;color:var(--muted);font-size:18px;line-height:1.65}.actions{flex-wrap:wrap;gap:12px;margin-top:28px;display:flex}.btn{border:1px solid var(--line);background:var(--surface);min-height:44px;color:var(--ink);cursor:pointer;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:10px 16px;font-weight:650;display:inline-flex}.btn.primary,.btn:hover{border-color:var(--accent)}.btn.primary{background:var(--accent);color:var(--bg)}.btn.danger{color:var(--danger)}.btn:disabled{opacity:.45;cursor:not-allowed}.grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:52px;display:grid}.card{border:1px solid var(--line);background:var(--surface);border-radius:18px;padding:20px}.stat{margin-top:10px;font-size:28px;font-weight:760}.muted{color:var(--muted)}.stack{gap:16px;display:grid}.field{gap:8px;display:grid}.field label,.label{font-size:14px;font-weight:700}.input{border:1px solid var(--line);background:var(--surface);width:100%;min-height:44px;color:var(--ink);border-radius:12px;padding:11px 13px}textarea.input{resize:vertical;min-height:180px;font-size:16px;line-height:1.55}.segmented{border:1px solid var(--line);background:var(--surface);border-radius:12px;gap:4px;padding:4px;display:inline-flex}.segmented button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:8px;padding:8px 12px}.segmented button[aria-pressed=true]{background:var(--accent-soft);color:var(--accent);font-weight:700}.library-list,.preview-list{gap:10px;margin:16px 0 0;padding:0;list-style:none;display:grid}.library-item,.preview-item{border:1px solid var(--line);background:var(--surface);border-radius:12px;justify-content:space-between;align-items:start;gap:16px;padding:14px;display:flex}.item-text{overflow-wrap:anywhere;line-height:1.5}.tags{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.tag{background:var(--accent-soft);color:var(--accent);border-radius:999px;padding:3px 8px;font-size:12px}.toolbar{flex-wrap:wrap;align-items:end;gap:10px;margin:24px 0;display:flex}.toolbar .input{flex:220px;width:auto}.practice{text-align:center}.progress{color:var(--muted);font-variant-numeric:tabular-nums}.play{background:var(--accent);width:92px;height:92px;color:var(--bg);cursor:pointer;box-shadow:0 14px 34px var(--accent);border:0;border-radius:50%;margin:30px auto 18px;font-size:30px}@supports (color:color-mix(in lab,red,red)){.play{box-shadow:0 14px 34px color-mix(in srgb,var(--accent) 22%,transparent)}}.practice textarea{min-height:150px;margin-top:24px}.metrics{color:var(--muted);justify-content:center;gap:28px;margin:20px 0;display:flex}.metric strong{color:var(--ink);font-size:22px;display:block}.feedback{text-align:left;margin-top:24px}.answer{background:var(--bg);overflow-wrap:anywhere;border-radius:12px;padding:16px;line-height:1.65}.errors{gap:8px;margin-top:16px;display:grid}.error{border-left:4px solid var(--danger);background:var(--danger);padding:10px 12px}@supports (color:color-mix(in lab,red,red)){.error{background:color-mix(in srgb,var(--danger) 8%,var(--surface))}}.char-diff{margin-top:6px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.char-delete{color:var(--danger);background:var(--danger);text-decoration:line-through}@supports (color:color-mix(in lab,red,red)){.char-delete{background:color-mix(in srgb,var(--danger) 12%,transparent)}}.char-insert{color:var(--warn);text-decoration:underline}.live-token{border-radius:5px;margin:2px;padding:2px 5px;display:inline-block}.live-token.wrong{color:var(--danger);background:var(--danger);-webkit-text-decoration:underline wavy;text-decoration:underline wavy}@supports (color:color-mix(in lab,red,red)){.live-token.wrong{background:color-mix(in srgb,var(--danger) 8%,transparent)}}.notice{border:1px solid var(--line);color:var(--muted);background:var(--surface);border-radius:12px;padding:12px 14px}.error-text{color:var(--danger)}.success{color:var(--accent);font-weight:700}.pagination{justify-content:space-between;align-items:center;margin-top:20px;display:flex}.update{z-index:40;position:fixed;bottom:16px;right:16px;box-shadow:0 10px 30px #0003}@media (max-width:760px){.nav{gap:12px;padding:0 16px}.brand{flex:none}.brand span{display:none}.navlinks{scrollbar-width:none;gap:10px;min-width:0;font-size:13px;overflow-x:auto}.navlinks::-webkit-scrollbar{display:none}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.container{padding-top:34px}}