:root{font-family:Arial Narrow,Arial,Helvetica,sans-serif;color:#000;background:#fff;font-synthesis:none;text-rendering:geometricPrecision;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;background:#fff;color:#000}button,input{font:inherit}button{cursor:pointer;background:transparent;color:inherit;-webkit-tap-highlight-color:transparent}input{min-width:0}.app-shell{min-height:100vh}.page{width:min(1200px,calc(100vw - 32px));margin:0 auto;padding:28px 0 48px}.panel,.study-card,.study-topbar,.modal-card{padding:24px 0}.panel-label,.panel-meta,.prompt-label,.field-label{margin:0;text-transform:uppercase;letter-spacing:.08em;font-size:.74rem}h1,h2,p{margin:0}.page-title{margin-top:10px;font-size:clamp(3rem,9vw,6.5rem);line-height:.92;letter-spacing:-.07em;text-transform:uppercase}.panel-header,.button-row,.study-meta,.study-topbar,.modal-header{display:flex;align-items:center;justify-content:space-between;gap:16px}.back-link{margin-bottom:12px}.empty-state{padding:40px 0;font-size:1.15rem}.list-table{margin-top:28px}.list-row{display:grid;align-items:start;gap:18px;padding:18px 0}.list-row-head{padding-top:0;padding-bottom:12px;text-transform:uppercase;letter-spacing:.08em;font-size:.74rem}.list-head{border-bottom:1px solid #000}.list-table [role=rowgroup]:last-child .list-row{border-bottom:1px solid #d7d7d7}.folder-row{grid-template-columns:minmax(0,1.2fr) 100px auto}.word-row{grid-template-columns:48px minmax(0,1.1fr) minmax(0,1fr) auto}.folder-link,.word-primary,.word-secondary{font-size:clamp(1.1rem,2vw,1.7rem);line-height:1.15}.folder-link,.word-primary{font-weight:700;text-align:left}.folder-link{padding:0}.folder-count{font-size:1rem;line-height:1.5}.row-actions{display:flex;align-items:center;gap:18px;white-space:nowrap}.word-checkbox{display:inline-flex;align-items:center;justify-content:flex-start;min-height:100%}.word-checkbox input{width:18px;height:18px;margin:0;accent-color:#000}.primary-button,.text-button{border:0;padding:0;text-transform:uppercase;letter-spacing:.04em}.primary-button{display:inline-flex;align-items:center;justify-content:center;min-height:56px;padding:0 28px;background:#000;color:#fff;font-weight:700;transition:transform .14s ease,opacity .14s ease}.primary-button:disabled{opacity:.35;cursor:not-allowed;transform:none}.text-button{text-decoration:underline;text-underline-offset:.18em}@media (hover: hover){.primary-button:hover,.primary-button:focus-visible,.text-button:hover,.text-button:focus-visible,.folder-link:hover,.folder-link:focus-visible{transform:translateY(-1px)}}.study-page{display:grid;gap:18px}.study-topbar{padding-block:16px;border-bottom:1px solid #000}.toggle{display:inline-flex;align-items:center;gap:12px;text-transform:uppercase;letter-spacing:.04em}.toggle input{width:18px;height:18px;margin:0;accent-color:#000}.study-card{min-height:calc(100dvh - 170px);display:grid;grid-template-rows:auto 1fr auto;gap:28px}.study-prompt-wrap{align-self:center;max-width:100%}.study-empty{align-self:center;display:grid;gap:20px}.study-prompt{margin-top:14px;font-size:clamp(3.4rem,10vw,9rem);line-height:.92;letter-spacing:-.08em;text-transform:uppercase;word-break:break-word}.study-form,.editor-form{display:grid;gap:14px}.study-actions{justify-content:flex-start}.brutalist-input{width:100%;min-height:72px;padding:18px 20px;border:1px solid #000;border-radius:0;background:#fff;color:#000;font-size:clamp(1.1rem,2vw,1.6rem);transition:background .12s ease}.brutalist-input:focus{outline:none;background:#f1f1f1}.feedback-block{padding:20px;border:1px solid #000;animation:reveal .16s ease}.feedback-correct{background:#000;color:#fff}.feedback-incorrect{background:#efefef}.feedback-title{font-size:1.5rem;font-weight:700;text-transform:uppercase}.feedback-answer{margin-top:8px;font-size:1rem}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:20px;background:#ffffffeb}.modal-card{width:min(720px,100%);padding-inline:24px;border:1px solid #000;background:#fff;animation:reveal .18s ease}.modal-card h2{margin:22px 0;font-size:clamp(2.5rem,7vw,4.8rem);line-height:.95;letter-spacing:-.06em;text-transform:uppercase}@keyframes reveal{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 900px){.list-head{display:none}.folder-row{grid-template-columns:1fr auto;row-gap:6px}.folder-link{grid-column:1 / 3}.folder-count{grid-column:1;align-self:center}.folder-row .row-actions{grid-column:2;grid-row:2}.word-row{grid-template-columns:36px 1fr auto;grid-template-rows:auto auto;row-gap:4px}.word-checkbox{grid-column:1;grid-row:1 / 3;align-self:start;padding-top:3px}.word-primary{grid-column:2;grid-row:1}.word-secondary{grid-column:2;grid-row:2;color:#555}.word-row .row-actions{grid-column:3;grid-row:1;align-self:start}.row-actions .text-button{min-height:44px;display:inline-flex;align-items:center}}@media (max-width: 640px){.page{width:calc(100vw - 20px);padding-top:12px;padding-bottom:24px}.panel,.study-card,.study-topbar,.modal-card{padding-top:18px;padding-bottom:18px}.modal-card{padding-inline:18px}.study-topbar,.panel-header,.button-row,.study-meta,.modal-header{align-items:flex-start;flex-direction:column}.study-card{min-height:auto}.primary-button{width:100%}.list-row{gap:12px;padding:14px 0}}