@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/fef07dbb0973bf53-s.3p2_lha1f2xer.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/8a480f0b521d4e75-s.1qq4vpdcun5oj.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/53b9e256198e5412-s.390ncx5urfkfu.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/7178b3e590c64307-s.21jp631_3pja2.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/caa3a2e1cccd8315-s.p.0wgildi0cnwt9.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Geist Fallback;src:local(Arial);ascent-override:95.94%;descent-override:28.16%;line-gap-override:0.0%;size-adjust:104.76%}.geist_dbbf8c4b-module__5qCx7q__className{font-family:Geist,Geist Fallback;font-style:normal}.geist_dbbf8c4b-module__5qCx7q__variable{--font-geist:"Geist", "Geist Fallback"}
@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/5ce348bf30bf5439-s.31988l_ccedte.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/4fa387ec64143e14-s.2tuy5pz7dlieh.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/6306c77e7c8268e4-s.2dbetqa9o8jxf.woff2)format("woff2");unicode-range:U+2000-2001,U+2004-2008,U+200A,U+23B8-23BD,U+2500-259F}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/7d817b4c03b0c5f1-s.1uyisp29ctx0d.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/bbc41e54d2fcbd21-s.1rgnod-3esatf.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/797e433ab948586e-s.p.0r6juujl39pe6.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Geist Mono Fallback;src:local(Arial);ascent-override:74.67%;descent-override:21.92%;line-gap-override:0.0%;size-adjust:134.59%}.geist_mono_8d43a2aa-module__8Li5zG__className{font-family:Geist Mono,Geist Mono Fallback;font-style:normal}.geist_mono_8d43a2aa-module__8Li5zG__variable{--font-geist-mono:"Geist Mono", "Geist Mono Fallback"}
@layer theme{:root,:host{--default-font-family:var(--font-geist);--default-mono-font-family:var(--font-geist-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,-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;-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:where(:not(iframe)){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{.visible{visibility:visible}.block{display:block}}:root{--page:#f3f5f1;--surface:#fbfcfa;--surface-strong:#fff;--surface-soft:#e9ede7;--text:#18201c;--muted:#5b6761;--faint:#78837d;--border:#d5dbd6;--accent:#a94426;--accent-hover:#8e351c;--accent-contrast:#fffaf7;--success:#2d704f;--success-soft:#e3f1e8;--danger:#a53636;--danger-soft:#f7e7e5;--shadow:0 24px 70px #26372e1a;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--page:#121714;--surface:#171e1a;--surface-strong:#1c2420;--surface-soft:#222c27;--text:#eef3ef;--muted:#a9b5ae;--faint:#87938c;--border:#344039;--accent:#e97852;--accent-hover:#f08b68;--accent-contrast:#24120c;--success:#76c39a;--success-soft:#1c3327;--danger:#f09088;--danger-soft:#3a2423;--shadow:0 24px 70px #0000003d;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}html{background:var(--page);scroll-behavior:smooth}body{background:var(--page);color:var(--text);font-family:var(--font-geist), system-ui, sans-serif;margin:0;line-height:1.5}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}: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)}}:focus-visible{outline-offset:3px}.site-shell{min-height:100dvh;overflow:hidden}.public-nav,.public-footer,.hero,.home-course{width:min(1180px,100% - 40px);margin-inline:auto}.public-nav{justify-content:space-between;align-items:center;height:76px;display:flex}.brand{letter-spacing:-.02em;white-space:nowrap;align-items:center;gap:10px;font-weight:720;display:inline-flex}.brand-mark{width:36px;height:36px;color:var(--accent-contrast);background:var(--accent);border-radius:12px;place-items:center;font-weight:800;display:grid}.nav-actions,.hero-actions{align-items:center;gap:12px;display:flex}.text-link{min-height:44px;color:var(--muted);align-items:center;padding:0 10px;font-weight:600;display:inline-flex}.text-link:hover{color:var(--text)}.button{cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:12px;justify-content:center;align-items:center;gap:9px;min-height:48px;padding:0 20px;font-weight:700;transition:background-color .18s,border-color .18s,transform .12s;display:inline-flex}.button svg{width:19px;height:19px}.button:active{transform:translateY(1px)}.button:disabled{opacity:.58;cursor:not-allowed}.button-primary{color:var(--accent-contrast);background:var(--accent)}.button-primary:hover:not(:disabled){background:var(--accent-hover)}.button-secondary{color:var(--text);border-color:var(--border);background:0 0}.button-secondary:hover{background:var(--surface-soft)}.button-small{min-height:42px;padding-inline:16px}.hero{grid-template-columns:1.05fr .78fr;align-items:center;gap:clamp(50px,8vw,120px);min-height:calc(100dvh - 76px);padding:54px 0 90px;display:grid}.eyebrow{color:var(--accent);letter-spacing:.13em;text-transform:uppercase;margin:0 0 18px;font-size:.78rem;font-weight:800;line-height:1}.hero h1{letter-spacing:-.072em;max-width:750px;margin:0;font-size:clamp(3.1rem,6.5vw,6.5rem);font-weight:760;line-height:.98}.hero-description{max-width:520px;color:var(--muted);margin:28px 0 32px;font-size:1.1rem;line-height:1.75}.lesson-preview{border:1px solid var(--border);background:var(--surface-strong);box-shadow:var(--shadow);border-radius:16px;padding:clamp(24px,4vw,46px);position:relative}.lesson-preview:before{content:"A1";background:var(--accent);width:62px;height:62px;color:var(--accent-contrast);font:800 1.1rem var(--font-geist-mono);border-radius:16px;place-items:center;display:grid;position:absolute;top:-22px;right:26px;transform:rotate(4deg)}.preview-topline{color:var(--faint);justify-content:space-between;gap:16px;font-size:.8rem;font-weight:700;display:flex}.preview-word{align-items:baseline;gap:16px;margin-top:54px;display:flex}.preview-word span{letter-spacing:-.06em;font-size:clamp(3.5rem,7vw,6rem);font-weight:740;line-height:1}.preview-word small{color:var(--muted);font-family:var(--font-geist-mono)}.preview-meaning{color:var(--muted);margin:18px 0 28px}.preview-example{background:var(--surface-soft);border-radius:12px;padding:20px}.preview-example span,.preview-example small{display:block}.preview-example span{margin-bottom:7px;font-weight:700}.preview-example small{color:var(--muted)}.preview-footer{color:var(--success);align-items:center;gap:9px;margin-top:22px;font-size:.9rem;font-weight:700;display:flex}.preview-footer svg{width:20px;height:20px}.home-course{padding:80px 0 120px}.section-heading{max-width:660px}.section-heading h2{letter-spacing:-.045em;margin:0;font-size:clamp(2rem,4vw,3.5rem);line-height:1.08}.section-heading>p:last-child{color:var(--muted);margin:18px 0 0;font-size:1.02rem}.section-heading.compact h2{font-size:clamp(1.7rem,3vw,2.5rem)}.course-outline{border-top:1px solid var(--border);margin-top:56px}.course-outline article{border-bottom:1px solid var(--border);grid-template-columns:70px 1fr auto;align-items:center;gap:24px;padding:31px 10px;display:grid}.course-outline article>svg{width:28px;height:28px;color:var(--accent)}.outline-number{color:var(--faint);font-family:var(--font-geist-mono)}.course-outline h3{margin:0 0 5px;font-size:1.24rem}.course-outline p{color:var(--muted);margin:0}.public-footer{border-top:1px solid var(--border);color:var(--muted);justify-content:space-between;padding:28px 0 34px;font-size:.9rem;display:flex}.auth-page{place-items:center;min-height:100dvh;padding:90px 20px 50px;display:grid;position:relative}.auth-brand{position:absolute;top:24px;left:max(20px,50% - 580px)}.auth-panel{border:1px solid var(--border);background:var(--surface-strong);width:min(100%,470px);box-shadow:var(--shadow);border-radius:16px;padding:42px}.auth-copy h1{letter-spacing:-.05em;margin:0;font-size:2.35rem;line-height:1.05}.auth-copy>p:last-child{color:var(--muted);margin:15px 0 30px}.auth-form{gap:18px;display:grid}.auth-form label,.fill-answer{gap:8px;display:grid}.auth-form label>span,.fill-answer>span{font-size:.86rem;font-weight:700}.auth-form input,.fill-answer input{border:1px solid var(--border);width:100%;min-height:48px;color:var(--text);background:var(--surface);border-radius:10px;padding:0 14px}.auth-form input::placeholder,.fill-answer input::placeholder{color:var(--faint)}.auth-form input:focus,.fill-answer input:focus{border-color:var(--accent);outline:3px solid var(--accent)}@supports (color:color-mix(in lab, red, red)){.auth-form input:focus,.fill-answer input:focus{outline:3px solid color-mix(in srgb, var(--accent) 18%, transparent)}}.auth-submit{width:100%;margin-top:4px}.form-error{color:var(--danger);background:var(--danger-soft);border-radius:10px;margin:0;padding:12px 14px;font-size:.9rem}.auth-switch{color:var(--muted);text-align:center;margin:24px 0 0;font-size:.9rem}.auth-switch a{color:var(--accent);font-weight:700}.spin{animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.learn-shell{min-height:100dvh}.app-header{z-index:20;border-bottom:1px solid var(--border);background:var(--page);grid-template-columns:1fr auto 1fr;align-items:center;width:min(1180px,100% - 40px);height:76px;margin-inline:auto;display:grid;position:sticky;top:0}@supports (color:color-mix(in lab, red, red)){.app-header{background:color-mix(in srgb, var(--page) 90%, transparent)}}.app-header{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.app-header nav{align-items:center;gap:6px;display:flex}.app-header nav a{min-height:42px;color:var(--muted);border-radius:10px;align-items:center;gap:7px;padding:0 12px;font-size:.9rem;font-weight:650;display:flex}.app-header nav a:hover{color:var(--text);background:var(--surface-soft)}.app-header nav svg,.icon-button svg{width:19px;height:19px}.user-menu{color:var(--muted);justify-self:end;align-items:center;gap:12px;font-size:.9rem;display:flex}.icon-button{border:1px solid var(--border);width:42px;height:42px;color:var(--muted);cursor:pointer;background:0 0;border-radius:10px;place-items:center;display:grid}.icon-button:hover{color:var(--text);background:var(--surface-soft)}.app-main,.lesson-page,.review-page{width:min(1060px,100% - 40px);margin-inline:auto;padding:64px 0 110px}.dashboard-intro{justify-content:space-between;align-items:end;gap:30px;display:flex}.dashboard-intro h1,.lesson-title h1,.review-heading h1{letter-spacing:-.06em;margin:0;font-size:clamp(2.25rem,5vw,4.6rem);line-height:1}.dashboard-intro div>p:last-child,.review-heading>p:last-child{color:var(--muted);margin:18px 0 0}.stats-strip{border-top:1px solid var(--border);border-bottom:1px solid var(--border);grid-template-columns:repeat(3,1fr);margin:56px 0;padding:24px 0;display:grid}.stats-strip div{border-right:1px solid var(--border);align-items:baseline;gap:12px;padding:0 24px;display:flex}.stats-strip div:first-child{padding-left:0}.stats-strip div:last-child{border:0}.stats-strip strong{letter-spacing:-.04em;font-size:2rem}.stats-strip span{color:var(--muted);font-size:.88rem}.review-callout{border:1px solid var(--accent);grid-template-columns:auto 1fr auto;align-items:center;gap:18px;margin-bottom:60px;padding:20px 22px;display:grid}@supports (color:color-mix(in lab, red, red)){.review-callout{border:1px solid color-mix(in srgb, var(--accent) 35%, var(--border))}}.review-callout{background:var(--accent);border-radius:14px}@supports (color:color-mix(in lab, red, red)){.review-callout{background:color-mix(in srgb, var(--accent) 7%, var(--surface))}}.review-callout>svg:first-child{width:26px;height:26px;color:var(--accent)}.review-callout>svg:last-child{width:20px;height:20px}.review-callout strong,.review-callout span{display:block}.review-callout span{color:var(--muted);margin-top:3px;font-size:.9rem}.lesson-list{margin-top:70px}.lesson-rows{border-top:1px solid var(--border);margin-top:34px}.lesson-row{border-bottom:1px solid var(--border);grid-template-columns:58px 1fr auto 24px;align-items:center;gap:22px;min-height:138px;padding:20px 10px;transition:background-color .18s;display:grid}.lesson-row:hover{background:var(--surface-soft)}@supports (color:color-mix(in lab, red, red)){.lesson-row:hover{background:color-mix(in srgb, var(--surface-soft) 65%, transparent)}}.lesson-index{border:1px solid var(--border);width:44px;height:44px;color:var(--faint);font-family:var(--font-geist-mono);border-radius:12px;place-items:center;display:grid}.lesson-index.is-done{color:var(--success);background:var(--success-soft);border-color:#0000}.lesson-index svg{width:23px;height:23px}.lesson-row-labels{align-items:center;gap:9px;display:flex}.lesson-row-labels small{color:var(--faint);font-size:.75rem;font-weight:700}.track-pill{min-height:25px;color:var(--accent);background:var(--accent);border-radius:999px;align-items:center;padding:0 8px;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.track-pill{background:color-mix(in srgb, var(--accent) 10%, transparent)}}.track-pill{font-size:.7rem;font-weight:800}.track-pill.pronunciation{color:var(--success);background:var(--success-soft)}.lesson-row-copy h3{margin:3px 0;font-size:1.3rem}.lesson-row-copy p{color:var(--muted);margin:0;font-size:.92rem}.lesson-meta{color:var(--muted);gap:8px;font-size:.82rem;display:grid}.lesson-meta span{align-items:center;gap:6px;display:flex}.lesson-meta svg,.row-arrow{width:18px;height:18px}.row-arrow{color:var(--faint)}.lesson-back{margin-bottom:48px}.lesson-back a{min-height:44px;color:var(--muted);align-items:center;gap:8px;font-weight:650;display:inline-flex}.lesson-back a:hover{color:var(--text)}.lesson-back svg{width:19px;height:19px}.lesson-title{border-bottom:1px solid var(--border);justify-content:space-between;align-items:end;gap:24px;padding-bottom:45px;display:flex}.lesson-title div>p:last-child{color:var(--muted);margin:12px 0 0;font-size:1.15rem}.lesson-facts{gap:8px;display:grid}.lesson-facts span{color:var(--muted);align-items:center;gap:7px;font-size:.88rem;display:flex}.lesson-facts svg{width:18px;height:18px}.lesson-content{width:min(100%,760px);margin:0 auto;padding:30px 0 70px}.lesson-content>section{border-bottom:1px solid var(--border);padding:42px 0}.lesson-content h2{letter-spacing:-.03em;margin:0 0 16px;font-size:1.65rem}.lesson-content section>p{color:var(--muted);margin:0;font-size:1.02rem;line-height:1.85}.section-kicker{color:var(--accent);letter-spacing:.08em;text-transform:uppercase;align-items:center;gap:8px;margin-bottom:14px;font-size:.76rem;font-weight:850;display:flex}.section-kicker svg{width:19px;height:19px}.lesson-objectives{background:var(--surface-strong);border-radius:15px;margin-top:18px;border:1px solid var(--border)!important;padding:28px!important}.lesson-objectives ul{gap:12px;margin:20px 0 0;padding:0;list-style:none;display:grid}.lesson-objectives li{color:var(--muted);align-items:center;gap:10px;display:flex}.lesson-objectives li svg{width:20px;height:20px;color:var(--success);flex:none}.learning-focus{border-left:3px solid var(--accent);background:var(--accent);border-radius:0 10px 10px 0;grid-template-columns:auto 1fr;gap:10px;padding:14px 16px;display:grid;margin-top:22px!important}@supports (color:color-mix(in lab, red, red)){.learning-focus{background:color-mix(in srgb, var(--accent) 7%, var(--surface))}}.learning-focus{font-size:.94rem!important;line-height:1.6!important}.learning-focus strong{color:var(--accent);white-space:nowrap}.example-block{border-radius:12px;gap:2px;margin-top:24px;display:grid;overflow:hidden}.example-block>div{background:var(--surface-soft);justify-content:space-between;align-items:center;gap:16px;padding:17px 18px;display:flex}.example-block>div>div{min-width:0}.example-block strong,.example-block span{display:block}.example-block span{color:var(--muted);margin-top:4px;font-size:.9rem}.vocabulary-section>p{margin-bottom:26px!important}.vocabulary-groups{gap:32px;display:grid}.vocabulary-group h3{justify-content:space-between;align-items:center;margin:0 0 11px;font-size:1rem;display:flex}.vocabulary-group h3 span{color:var(--faint);font-size:.74rem;font-weight:700}.vocabulary-grid{gap:8px;display:grid}.vocabulary-item{border:1px solid var(--border);background:var(--surface);border-radius:12px;overflow:hidden}.vocabulary-item[open]{border-color:var(--accent)}@supports (color:color-mix(in lab, red, red)){.vocabulary-item[open]{border-color:color-mix(in srgb, var(--accent) 45%, var(--border))}}.vocabulary-item[open]{background:var(--surface-strong)}.vocabulary-item summary{cursor:pointer;grid-template-columns:minmax(160px,1fr) minmax(160px,.8fr);align-items:center;gap:18px;min-height:72px;padding:13px 16px;list-style:none;display:grid}.vocabulary-item summary::-webkit-details-marker{display:none}.vocabulary-item summary:after{content:"+";color:var(--faint);grid-area:1/3;font-size:1.25rem}.vocabulary-item[open] summary:after{content:"−"}.word-identity,.word-sound{gap:3px;display:grid}.word-identity strong{font-size:1.22rem;line-height:1.1}.word-identity span{color:var(--muted);font-size:.84rem}.word-sound b{color:var(--accent);font:800 .86rem var(--font-geist-mono);letter-spacing:.02em}.word-sound span{color:var(--faint);font:.76rem var(--font-geist-mono)}.word-detail{border-top:1px solid var(--border);background:var(--surface-soft);padding:17px 16px 18px}@supports (color:color-mix(in lab, red, red)){.word-detail{background:color-mix(in srgb, var(--surface-soft) 55%, transparent)}}.word-detail>p{color:var(--muted);margin:0 0 13px;font-size:.9rem}.word-audio{gap:5px;display:flex}.word-example{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:16px;margin-top:13px;padding-top:13px;font-size:.9rem;display:flex}.speak-button{min-height:44px;color:var(--muted);text-align:left;cursor:pointer;background:0 0;border:0;border-radius:8px;align-items:center;gap:8px;margin:2px 0 0 -8px;padding:0 8px;display:flex}.speak-button:hover{color:var(--accent);background:var(--accent)}@supports (color:color-mix(in lab, red, red)){.speak-button:hover{background:color-mix(in srgb, var(--accent) 7%, transparent)}}.speak-button svg{width:18px;height:18px;color:var(--accent);flex:none}.speak-button.is-compact{min-height:38px;margin:0;font-size:.82rem}.lesson-quiz-section{width:min(100%,760px);margin:0 auto}.quiz-shell{margin-top:30px}.quiz-progress{color:var(--muted);align-items:center;gap:18px;margin-bottom:18px;font-size:.85rem;font-weight:700;display:flex}.quiz-progress>div{background:var(--surface-soft);flex:1;height:3px;overflow:hidden}.quiz-progress i{background:var(--accent);height:100%;transition:width .22s;display:block}.quiz-card{border:1px solid var(--border);background:var(--surface-strong);box-shadow:var(--shadow);border-radius:16px;padding:clamp(24px,5vw,48px)}.quiz-kind{color:var(--accent);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;font-size:.72rem;font-weight:850}.quiz-card h2{letter-spacing:-.03em;margin:0 0 30px;font-size:clamp(1.4rem,3vw,2rem);line-height:1.35}.quiz-audio{gap:8px;margin:-10px 0 24px;display:flex}.quiz-audio .speak-button{border:1px solid var(--border);background:var(--surface);min-height:46px;margin:0;padding:0 14px}.answer-options{gap:10px;display:grid}.answer-options label{border:1px solid var(--border);cursor:pointer;border-radius:10px;align-items:center;gap:13px;min-height:54px;padding:10px 15px;transition:border-color .15s,background-color .15s;display:flex}.answer-options label:hover,.answer-options label.selected{border-color:var(--accent);background:var(--accent)}@supports (color:color-mix(in lab, red, red)){.answer-options label:hover,.answer-options label.selected{background:color-mix(in srgb, var(--accent) 7%, var(--surface))}}.answer-options input{width:18px;height:18px;accent-color:var(--accent)}.fill-answer input{min-height:54px;margin-top:4px;font-size:1.1rem}.fill-answer small{color:var(--faint);font-size:.82rem}.answer-feedback{border-radius:10px;grid-template-columns:auto 1fr;gap:12px;margin-top:22px;padding:16px;display:grid}.answer-feedback.correct{color:var(--success);background:var(--success-soft)}.answer-feedback.incorrect{color:var(--danger);background:var(--danger-soft)}.answer-feedback>svg{width:23px;height:23px}.answer-feedback strong{display:block}.your-answer{opacity:.85;margin-top:3px;font-size:.82rem;display:block}.answer-feedback p{color:var(--text);margin:5px 0 0;font-size:.9rem}.answer-feedback .contrast-note{border-top:1px solid;margin-top:11px;padding-top:10px}@supports (color:color-mix(in lab, red, red)){.answer-feedback .contrast-note{border-top:1px solid color-mix(in srgb, currentColor 25%, transparent)}}.answer-feedback .contrast-note{font-weight:650}.quiz-button{width:100%;margin-top:24px}.quiz-complete{border:1px solid var(--border);text-align:center;background:var(--surface-strong);border-radius:16px;flex-direction:column;justify-content:center;align-items:center;min-height:360px;padding:40px;display:flex}.quiz-complete>svg{width:54px;height:54px;color:var(--success)}.quiz-complete h2{margin:18px 0 8px;font-size:2rem}.quiz-complete p{color:var(--muted);margin:0 0 25px}.review-page{width:min(760px,100% - 40px)}.review-heading{margin-bottom:52px}.empty-review{border:1px solid var(--border);background:var(--surface);border-radius:16px;flex-direction:column;justify-content:center;align-items:center;gap:18px;min-height:300px;display:flex}.empty-review>svg{width:48px;height:48px;color:var(--success)}@media (max-width:760px){.public-nav,.public-footer,.hero,.home-course,.app-header,.app-main,.lesson-page,.review-page{width:min(100% - 32px,100%)}.hero{grid-template-columns:1fr;gap:70px;min-height:auto;padding:62px 0 90px}.hero h1{font-size:clamp(3rem,13vw,5rem)}.hero-actions{flex-direction:column;align-items:stretch}.lesson-preview{margin-inline:4px}.home-course{padding-top:50px}.course-outline article{grid-template-columns:44px 1fr;gap:15px}.course-outline article>svg{display:none}.public-footer{flex-direction:column;gap:8px}.auth-panel{padding:30px 22px}.app-header{-webkit-backdrop-filter:none;backdrop-filter:none;grid-template-columns:1fr auto}.app-header nav{z-index:30;border:1px solid var(--border);background:var(--surface-strong);box-shadow:var(--shadow);border-radius:14px;justify-content:center;padding:7px;position:fixed;bottom:14px;left:16px;right:16px}.app-header nav a{flex:1;justify-content:center}.user-menu>span{display:none}.dashboard-intro{flex-direction:column;align-items:stretch}.dashboard-intro .button{width:100%}.stats-strip{grid-template-columns:1fr}.stats-strip div,.stats-strip div:first-child{border-right:0;border-bottom:1px solid var(--border);padding:12px 0}.stats-strip div:last-child{border-bottom:0}.lesson-row{grid-template-columns:48px 1fr 20px;gap:14px;min-height:150px}.lesson-meta{display:none}.lesson-title{flex-direction:column;align-items:start}.lesson-facts{grid-template-columns:1fr 1fr;width:100%}.learning-focus{grid-template-columns:1fr}.example-block>div{flex-direction:column;align-items:flex-start}.vocabulary-item summary{grid-template-columns:1fr auto;gap:8px}.vocabulary-item summary:after{grid-area:1/2/span 2}.word-sound{grid-column:1}.word-example{flex-direction:column;align-items:flex-start}.quiz-audio{flex-direction:column;align-items:stretch}.lesson-content{padding-bottom:45px}.lesson-quiz-section{padding-bottom:80px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}
