@font-face{font-family:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(data:font/woff2;base64,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) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/plus-jakarta-sans-vietnamese-wght-normal-qRpaaN48.woff2) format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/plus-jakarta-sans-latin-ext-wght-normal-DmpS2jIq.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,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:Plus Jakarta Sans Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/plus-jakarta-sans-latin-wght-normal-eXO_dkmS.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Literata Variable;font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/literata-cyrillic-ext-wght-normal-CGKlZYBf.woff2) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Literata Variable;font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/literata-cyrillic-wght-normal-DLqwHbi6.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Literata Variable;font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/literata-greek-ext-wght-normal-e3e57Shi.woff2) format("woff2-variations");unicode-range:U+1F00-1FFF}@font-face{font-family:Literata Variable;font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/literata-greek-wght-normal-CO1l-giJ.woff2) format("woff2-variations");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:Literata Variable;font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/literata-vietnamese-wght-normal-LcSrhZ7T.woff2) format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Literata Variable;font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/literata-latin-ext-wght-normal-BnEbWgdZ.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,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:Literata Variable;font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/literata-latin-wght-normal-DLxlUchJ.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{font-family:Plus Jakarta Sans Variable,system-ui,sans-serif;color:#24254c;background:#f8faff;font-synthesis:none;line-height:1.6;--ink: #24254c;--muted: #62657d;--primary: #4c46d7;--line: #e1e4f0}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:.8rem 1.3rem;border:1px solid transparent;border-radius:12px;background:var(--primary);color:#fff;font-weight:650;cursor:pointer;text-decoration:none}button:hover,.button:hover{background:#3c36b7}button:disabled{opacity:.55;cursor:wait}a{color:inherit;text-underline-offset:4px}:focus-visible{outline:3px solid #7a5ce0;outline-offset:4px}h1,h2{line-height:1.2;letter-spacing:-.04em}h1{font-size:clamp(1.8rem,4vw,2.8rem);margin:.5rem 0 .8rem;overflow-wrap:anywhere}h2{font-size:1.35rem}p{margin:.5rem 0 1rem}.wordmark{display:inline-flex;gap:.5rem;align-items:center;font-size:1.9rem;font-weight:800;letter-spacing:-.07em;text-decoration:none}.wordmark img{display:block;width:140px;height:auto}.site-header{max-width:1160px;margin:auto;padding:1.3rem 2rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;border-bottom:1px solid var(--line)}nav{display:flex;align-items:center;gap:1.3rem;font-size:.88rem}nav>a{text-decoration:none;font-weight:650}.user-name{color:var(--muted)}.quiet{color:#494383;background:transparent;padding:.65rem .85rem}.quiet:hover{background:#edeaff}.secondary{color:#494383;background:#edeaff}.secondary:hover{background:#ddd8fc}.danger{color:#a53956}.page{max-width:1096px;margin:auto;padding:3rem 2rem;min-height:70vh}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;margin-bottom:2rem}.page-heading>button,.page-heading>.button{flex-shrink:0}.eyebrow,.muted{color:var(--muted)}.eyebrow{font-size:.8rem;font-weight:550}.small{font-size:.82rem}.panel{background:#fff;padding:1.8rem;border:1px solid var(--line);border-radius:18px}.empty{text-align:center;padding:3rem 1.5rem}.empty p{color:var(--muted);margin-bottom:1.8rem}.empty-symbol{font-size:3rem;color:#8681ca}.empty-inline{padding:2rem;text-align:center;color:var(--muted)}label{display:grid;gap:.45rem;font-size:.88rem;font-weight:650}.form-field{display:grid;gap:.45rem}input,textarea,select{width:100%;border:1px solid #c8cee1;border-radius:10px;background:#fff;color:var(--ink);padding:.85rem;min-width:0}textarea{resize:vertical}.notice{padding:.85rem 1rem;background:#ffedf1;color:#8b2646;border-radius:10px}.actions{display:flex;align-items:center;flex-wrap:wrap;gap:1rem;margin-top:1.4rem}.text-link{padding:.6rem 0;font-size:.9rem;font-weight:650}.create-form{margin-bottom:2rem;display:grid;gap:1rem;max-width:620px}.create-form h2{margin:0}.user-list{display:grid;gap:.75rem}.user-row{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem;border:1px solid var(--line);border-radius:12px}.password-reset{width:100%;flex-basis:100%;display:grid;gap:.5rem}.learning-summary{width:100%;flex-basis:100%;display:flex;flex-wrap:wrap;gap:.4rem 1rem;color:var(--muted);font-size:.8rem}.starter-feature{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(0,1.2fr);gap:2rem;align-items:center;min-height:390px;border-radius:26px;padding:2.2rem;background:#edeaff;margin-bottom:2.6rem}.starter-copy{align-self:center;min-width:0}.starter-label{color:#5146a0;font-size:.8rem;font-weight:700}.starter-copy h2{min-height:2.6em;margin:.75rem 0 1rem;overflow:hidden;font-size:clamp(1.6rem,3vw,2.25rem);line-height:1.15;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2}.starter-copy p{color:#565376;max-width:48ch;font-size:.93rem}.starter-meta{display:flex;gap:1.2rem;flex-wrap:wrap;color:#5146a0;font-size:.8rem;font-weight:650}.starter-illustration{display:grid;gap:1rem;padding:2rem 1.6rem;background:#fff;border-radius:16px;border-left:7px solid #a397ef;box-shadow:7px 8px #d1c9f5;transform:rotate(4deg)}.starter-illustration>span:first-child{color:var(--muted);font-size:.74rem}.starter-illustration strong{font-family:Literata Variable,Georgia,serif;font-size:clamp(1.5rem,3vw,2.1rem);font-weight:550}.starter-illustration>span:last-child{font-size:.9rem;color:#565376}.hero-cover{justify-self:center;width:min(230px,100%);aspect-ratio:2 / 3;object-fit:cover;border-radius:12px 18px 18px 12px;box-shadow:-7px 0 #8f85df,9px 11px #d1c9f5}.hero-picker{display:flex;align-items:start;gap:.9rem;min-width:0;min-height:245px;padding:2.5rem .5rem 1.2rem;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x proximity;scrollbar-gutter:stable}.hero-picker button{position:relative;flex:0 0 112px;display:grid;grid-template-rows:168px 2.5em;align-content:start;gap:.55rem;height:222px;padding:.5rem;border:2px solid transparent;background:#ffffff52;color:var(--ink);font-size:.75rem;text-align:left;scroll-snap-align:start}.hero-picker button.selected{border-color:#756ade;background:#fff;box-shadow:0 5px 18px #372d6e29}.hero-picker img,.hero-picker .book-placeholder{width:100%;height:100%;object-fit:cover;border-radius:7px 11px 11px 7px;box-shadow:-4px 0 #8179ce,5px 6px #d1c9f5}.hero-book-title{display:-webkit-box;overflow:hidden;font-weight:650;line-height:1.25;-webkit-box-orient:vertical;-webkit-line-clamp:2}.hero-book-tooltip{position:absolute;z-index:4;top:.85rem;left:50%;width:calc(100% - 1.25rem);padding:.5rem .35rem;border-radius:7px;background:#24254cf0;color:#fff;opacity:0;pointer-events:none;text-align:center;transform:translate(-50%,-.2rem);transition:opacity .12s ease,transform .12s ease}.hero-picker button:hover .hero-book-tooltip,.hero-picker button:focus-visible .hero-book-tooltip{opacity:1;transform:translate(-50%)}.section-title{font-size:1.1rem;margin-bottom:1.3rem}.learning-hero{display:grid;grid-template-columns:1.4fr .8fr;gap:1.4rem 2rem;padding:1.7rem;margin:0 0 2rem;border:1px solid #d8d3f2;border-left:7px solid #8f85df;border-radius:18px;background:#f1efff}.learning-hero h2{margin:0 0 .5rem}.learning-count{font-size:1.05rem}.learning-count strong{font-size:1.55rem;font-weight:600}.progress-track{height:10px;overflow:hidden;border-radius:999px;background:#dcd8ee}.progress-track span{display:block;height:100%;background:#6259cf;border-radius:inherit}.rating-stack{display:grid;grid-template-columns:repeat(3,1fr);gap:.55rem;align-self:center}.rating-stack span{display:grid;padding:.75rem;border-radius:10px;font-size:.72rem}.rating-stack strong{font-size:1.25rem}.rating-stack .known{background:#dff4e9;color:#285c47}.rating-stack .hard{background:#fff0d8;color:#805117}.rating-stack .again{background:#ffe5ec;color:#8b3650}.direction-summary{display:flex;flex-wrap:wrap;gap:.5rem 1rem;color:var(--muted);font-size:.78rem}.deck-progress-list{display:grid;gap:.4rem}.deck-progress-list a{display:flex;justify-content:space-between;gap:1rem;text-decoration:none;font-size:.82rem}.learning-empty{grid-template-columns:1fr auto;align-items:center}.progress-number{font-family:Literata Variable,Georgia,serif;color:#6c63bd;font-size:2rem}.deck-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1.2rem}.library-tabs{display:flex;align-items:end;gap:.35rem;margin:0 0 1.2rem;overflow-x:auto;border-bottom:1px solid var(--line)}.library-tabs button{border-radius:10px 10px 0 0}.library-tabs .active{background:#e6e2ff;color:#403987}.library-tabs .drop-ready{outline:3px dashed #6c63bd;outline-offset:2px}.custom-tab{display:flex;align-items:center;flex:0 0 auto;border-radius:10px 10px 0 0}.custom-tab.active{background:#e6e2ff}.custom-tab>button:first-child{background:transparent;color:inherit}.custom-tab .tab-edit{min-width:34px;min-height:34px;padding:.25rem;background:transparent;color:#665d98}.custom-tab form,.new-tab-form{display:flex;width:180px}.custom-tab input,.new-tab-form input{padding:.55rem}.custom-tab form button,.new-tab-form button{min-width:38px;padding:.4rem}.custom-tab form .tab-delete{background:transparent;color:#a13c4a;font-size:1.25rem}.library-tabs .add-tab{min-width:42px;font-size:1.2rem}.library-tabs .create-tab{margin-left:auto;white-space:nowrap}.deck-tile{position:relative;display:block;border-radius:14px;border:1px solid var(--line);border-top:5px solid #ffb777;background:#fff}.deck-tile:hover{border-color:#aaa0df}.deck-tile.en{border-top-color:#90cfb6}.deck-tile.general{border-top-color:#a397ef}.deck-tile-link{display:block;min-height:100%;padding:1.5rem 1.6rem;color:inherit;text-decoration:none}.deck-cover{display:block;width:calc(100% + 3.2rem);height:250px;margin:-1.5rem -1.6rem 1.2rem;object-fit:cover;border-radius:9px 9px 0 0}.book-placeholder{display:grid;place-items:center;background:linear-gradient(135deg,#f8f6ff,#dcd6fa);color:#6c63bd;font-size:3rem}.bookshelf{padding:1rem 1rem 1.8rem;border-radius:16px;background:#e8e3d8;box-shadow:inset 0 -12px #cdbfa7}.tab-assignment{padding:0 1.2rem 1rem;font-size:.78rem}.tab-assignment summary{cursor:pointer;color:#6258a3;font-weight:700}.tab-assignment label{display:flex;grid-template-columns:auto 1fr;align-items:center;gap:.45rem;margin-top:.45rem}.tab-assignment input{width:auto}.favorite-button{position:absolute;z-index:2;top:.75rem;right:.75rem;min-width:42px;min-height:42px;padding:.35rem;background:#fff;color:#726a94;font-size:1.45rem;box-shadow:0 2px 9px #24254c1a}.favorite-button.selected{background:#fff1bd;color:#7b5e00}.deck-tile h2{margin-top:1rem;overflow-wrap:anywhere}.deck-tile p{font-size:.85rem;color:var(--muted)}.deck-emoji{float:right;display:grid;place-items:center;width:2.6rem;height:2.6rem;margin:2.4rem 0 0;border-radius:12px;background:#f2f0ff;font-size:1.55rem}.language-badge{display:inline-block;font-size:.75rem;font-weight:650;color:#4a5366;background:#eef1f8;padding:.3rem .65rem;border-radius:6px}.tile-bottom{display:block;font-size:.74rem;margin-top:1.6rem;color:var(--muted)}.back-link{display:inline-block;margin-bottom:1.5rem;font-size:.85rem;color:#6258a3}.title-line{display:flex;align-items:center;flex-wrap:wrap;gap:.4rem 1rem}.deck-title-emoji{font-size:clamp(2rem,4vw,2.8rem);line-height:1}.emoji-field{position:relative;display:grid;gap:.45rem;font-size:.88rem;font-weight:650}.emoji-trigger{width:fit-content;gap:.55rem;font-size:1.25rem}.emoji-trigger span{font-size:.84rem}.emoji-picker{position:absolute;z-index:8;top:100%;left:0;width:min(520px,calc(100vw - 3rem));margin-top:.5rem;padding:.8rem;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:0 12px 35px #24254c29}.emoji-tabs{display:flex;gap:.35rem;overflow-x:auto;padding-bottom:.55rem}.emoji-tabs button{min-height:38px;padding:.45rem .65rem;white-space:nowrap;font-size:.72rem}.emoji-tabs .active{background:#ded9ff;color:#3f397f}.emoji-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:.3rem;padding:.5rem 0}.emoji-grid button{min-height:44px;padding:.35rem;background:transparent;color:var(--ink);font-size:1.4rem}.emoji-grid button:hover,.emoji-grid button.selected{background:#edeaff}.study-emoji{margin-right:.6rem}.title-line h1{margin-right:auto}.rename-form{display:grid;gap:.5rem;margin:.8rem 0;max-width:560px}.rename-form .actions{margin-top:.2rem}.sharing-panel{display:flex;align-items:center;justify-content:space-between;gap:1.5rem}.sharing-panel h2,.sharing-panel p{margin:0}.sharing-panel p{margin-top:.35rem;color:var(--muted)}.transfer-panel{display:grid;grid-template-columns:1fr minmax(180px,260px) auto;align-items:end;gap:1rem;margin-top:1rem}.transfer-panel h2,.transfer-panel p{margin:0}.transfer-panel p{margin-top:.35rem;color:var(--muted)}.media-shelf{display:grid;grid-template-columns:190px 1fr;gap:1.5rem;margin:1.5rem 0 2rem;padding:1.2rem;border-radius:18px;background:#e8e3d8;box-shadow:inset 0 -8px #d5c8b2}.cover-manager{display:flex;flex-direction:column;gap:.7rem;align-items:stretch}.cover-manager h2,.source-heading h2{margin:0}.cover-manager>img,.cover-placeholder{width:100%;aspect-ratio:2 / 3;object-fit:cover;border-radius:8px 14px 14px 8px;box-shadow:-5px 0 #8179ce,5px 7px #39305d29}.cover-placeholder{display:grid;place-items:center;background:#f8f6ff;color:#6c63bd;font-size:3rem}.cover-manager .button{text-align:center}.source-gallery{min-width:0;padding:.3rem .3rem 1rem}.source-heading{display:flex;align-items:start;justify-content:space-between;gap:1rem}.source-heading p{margin:.35rem 0 1rem;color:var(--muted);font-size:.82rem}.source-empty{padding:2rem 1rem;border:1px dashed #a99d89;border-radius:12px;color:#706858;text-align:center}.source-strip{display:grid;grid-template-columns:repeat(auto-fill,minmax(125px,1fr));gap:.8rem}.source-thumb{min-width:0;padding:.45rem;border-radius:10px;background:#fffdf8;box-shadow:0 3px #c9bba3}.source-thumb>button:first-child{display:block;width:100%;padding:0;overflow:hidden;background:transparent;color:var(--ink);text-align:left}.source-thumb img{display:block;width:100%;aspect-ratio:1;object-fit:cover;border-radius:7px}.source-thumb span{display:block;padding:.45rem .25rem .2rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.72rem}.source-thumb .danger{width:100%;min-height:36px;font-size:.72rem}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.lightbox{position:fixed;z-index:20;inset:0;display:grid;place-items:center;padding:5vw;background:#191930e6}.lightbox img{max-width:100%;max-height:86vh;border-radius:8px;box-shadow:0 16px 50px #111}.lightbox-close{position:fixed;top:1rem;right:1rem}.corrections h2 span{display:inline-grid;place-items:center;min-width:1.8rem;height:1.8rem;margin-left:.35rem;border-radius:999px;background:#eeeaff;color:#574cae;font:700 .8rem Plus Jakarta Sans Variable,sans-serif}.correction-item{padding:1.1rem 0;border-top:1px solid var(--line)}.correction-comparison{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.correction-comparison>div{padding:1rem;border-radius:10px;background:#f7f7fb}.correction-comparison span{display:block;margin-bottom:.45rem;color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.06em}.correction-comparison p{margin:.25rem 0 0}.correction-note{font-style:italic}.correction-form{grid-column:1 / -1;margin-top:1rem;padding:1rem;border-radius:12px;background:#f7f6ff}.correction-form h3{margin-top:0}.field-pair{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.card-editor,.chat-import{margin-bottom:2rem}.prompt-actions{display:flex;flex-wrap:wrap;gap:.7rem}.prompt-actions .copied{background:#dbf4ea;color:#346650}.csv-import{margin-bottom:1rem}.csv-content{display:grid;gap:1rem;margin-top:1.4rem}.csv-content h2,.csv-content p{margin:0}.import-review{display:grid;gap:1rem;margin-top:1.5rem}.import-action-bar{display:flex;align-items:center;justify-content:flex-end;gap:1rem}.import-action-bar.clean{position:sticky;z-index:3;bottom:.5rem;justify-content:space-between;padding:.75rem;border:1px solid #b9ddcd;border-radius:14px;background:#e7f7ef;box-shadow:0 -5px 18px #24254c14}.import-action-bar.clean span{color:#346650;font-size:.82rem;font-weight:650}.import-item{padding:1rem;border:1px solid var(--line);border-radius:12px}.import-item.needs-review{border-left:5px solid #e2a34f}.import-choice{display:flex;grid-template-columns:none;align-items:center;gap:.65rem;margin-bottom:.8rem}.import-choice input{width:auto}.duplicate-warning{color:#9b5b18;font-size:.82rem;font-weight:650}.card-editor h2{margin:0 0 1.3rem}.card-list{display:grid;gap:.7rem}.saved-card{display:flex;align-items:center;gap:1rem;background:#fff;padding:1rem;border:1px solid var(--line);border-radius:12px}.card-number{color:var(--muted);font-size:.75rem}.saved-pair{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:1rem;min-width:0}.saved-pair p{margin:0;overflow-wrap:anywhere;white-space:pre-wrap}.saved-pair p+p{color:var(--muted)}.card-actions{display:flex}.study{max-width:740px;margin:auto}.study h1{font-size:clamp(1.6rem,4vw,2.3rem)}.study-toolbar{display:flex;align-items:end;justify-content:space-between;gap:1rem;margin:1.8rem 0 .9rem}.study-toolbar label{width:min(340px,70%)}.study-card{position:relative;width:100%;min-height:340px;color:var(--ink);margin:1.2rem 0 1.8rem;perspective:1200px}.study-card-inner{position:absolute;inset:0;transform-style:preserve-3d;transition:transform .58s cubic-bezier(.2,.72,.25,1)}.study-card.revealed .study-card-inner{transform:rotateY(180deg)}.study-card-face{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.2rem;padding:2rem 2rem 5.5rem;overflow:hidden;border:1px solid var(--line);border-left:7px solid #a397ef;border-radius:22px;background:#fff;box-shadow:5px 7px #e7e2f9;text-align:center;backface-visibility:hidden;-webkit-backface-visibility:hidden}.study-card-back{border-left-color:#90cfb6;background:#fbfffd;transform:rotateY(180deg)}.study-answer-slot{max-width:100%}.reveal-button{position:absolute;z-index:2;bottom:2rem;left:50%;transform:translate(-50%);white-space:nowrap}.study-term{font-family:Literata Variable,Georgia,serif;font-weight:500;font-size:clamp(1.8rem,4vw,2.8rem);white-space:pre-wrap;overflow-wrap:anywhere;max-width:100%}.study-question-reminder{max-width:100%;color:var(--muted);font-size:.9rem;overflow-wrap:anywhere}.study-answer{font-weight:500;font-size:1.3rem;color:#346650;border-top:1px solid var(--line);padding-top:1.1rem;white-space:pre-wrap;overflow-wrap:anywhere;max-width:100%}.study-hint{font-size:.83rem;color:var(--muted);font-weight:400;margin-top:1rem}.study-controls{display:flex;justify-content:space-between;gap:1rem;margin-bottom:1rem}.rating-controls{display:flex;justify-content:center;flex-wrap:wrap;gap:.7rem;margin:-1rem 0 1.5rem}.login-screen{min-height:100vh;display:grid;grid-template-rows:1fr auto;background:#f4f6fc}.login-layout{width:min(1120px,100%);margin:auto;padding:3rem 2rem;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(340px,.85fr);gap:clamp(3rem,8vw,7rem);align-items:center}.intro{display:flex;flex-direction:column;align-items:flex-start}.intro h1{font-family:Literata Variable,Georgia,serif;font-weight:550;font-size:clamp(2.6rem,5vw,4.25rem);line-height:1.04;letter-spacing:-.055em;margin:1.3rem 0 .8rem}.intro p{color:var(--muted);max-width:43ch}.login-art{display:block;width:min(100%,500px);height:auto;mix-blend-mode:multiply}.login-form{display:grid;gap:1.2rem;padding:clamp(1.5rem,4vw,2.5rem);box-shadow:12px 14px #e4e2f4}.login-form h2{margin:.7rem 0 -.5rem}.login-form p{margin:0}footer{text-align:center;font-size:.76rem;color:var(--muted);padding:2rem}footer span{display:block;margin-top:.2rem}.login-footer{padding-top:.5rem}@media(max-width:700px){.site-header{width:90%;padding:1rem 0}nav{gap:.5rem}nav>a{display:none}.user-name{max-width:85px;overflow:hidden;text-overflow:ellipsis}.page{width:90%;padding:1.5rem 0}.page-heading{flex-direction:column;align-items:start;gap:.7rem}.panel{padding:1.25rem}.field-pair{grid-template-columns:1fr}.user-row{flex-wrap:wrap}.starter-feature{grid-template-columns:1fr;padding:1.5rem;gap:1.8rem}.starter-feature,.starter-copy h2{min-height:0}.hero-picker{min-height:218px;padding-top:.5rem}.hero-picker button{flex-basis:96px;grid-template-rows:144px 2.5em;height:198px}.hero-book-tooltip{display:none}.learning-hero{grid-template-columns:1fr;padding:1.25rem}.sharing-panel{align-items:stretch;flex-direction:column}.transfer-panel,.media-shelf{grid-template-columns:1fr}.cover-manager{max-width:180px}.source-heading{align-items:stretch;flex-direction:column}.source-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.correction-comparison{grid-template-columns:1fr}.emoji-grid{grid-template-columns:repeat(5,1fr)}.import-action-bar.clean{align-items:stretch;flex-direction:column;bottom:.25rem}.rating-stack{grid-template-columns:repeat(3,1fr)}.starter-copy h2{max-width:18ch}.starter-illustration{display:none}.saved-card{flex-wrap:wrap}.saved-pair{grid-template-columns:1fr;gap:.3rem}.card-actions{width:100%;justify-content:end}.login-layout{width:90%;padding:1.2rem 0 .5rem;grid-template-columns:1fr;gap:1rem;align-content:center}.intro{align-items:center;text-align:center}.intro h1{font-size:clamp(2rem,10vw,2.8rem);margin:.4rem 0}.intro p{margin:.4rem auto 0;font-size:.86rem;max-width:34ch}.login-art{width:min(72vw,280px)}.login-form{padding:1.35rem;gap:.9rem;box-shadow:7px 8px #e4e2f4}.login-form .wordmark{display:none}.login-form h2{margin-top:0}.login-footer{padding:1rem}.study-card{min-height:290px}.study-card-face{padding:1.3rem 1.3rem 5rem}.study-toolbar{align-items:stretch;flex-direction:column;gap:.4rem}.study-toolbar label{width:100%}.study-toolbar>button{align-self:end}.study-controls{gap:.5rem}.study-controls button{padding:.7rem .8rem}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}