:root{--blue:#244bd7;--deep:#19317a;--paper:#f2f5fc;--ink:#1b2b50;--muted:#64708c;--line:#dce3f2;--yellow:#f8d96c;--white:#fff;color:var(--ink);background:var(--paper);font-synthesis:none;font-family:Avenir Next,Avenir,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select,summary,label{-webkit-tap-highlight-color:transparent}button,a,.file-button,summary{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.55;cursor:default}a{color:inherit}button{border:0}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,.file-button:focus-within{outline-offset:4px;outline:3px solid #e59d0a}h1,h2,h3,p{margin:0}h1{letter-spacing:-1.4px;font-size:clamp(28px,5vw,37px);font-weight:650;line-height:1.15}h2{font-size:20px}p{line-height:1.6}button{font-weight:600}.shell{max-width:760px;padding:34px 36px max(22px,env(safe-area-inset-bottom));margin:auto}.masthead{justify-content:space-between;align-items:center;margin-bottom:34px;display:flex}.brand{letter-spacing:-1px;align-items:center;gap:12px;font-size:26px;font-weight:750;text-decoration:none;display:flex}.brand-mark{color:#fff;background:var(--blue);border-radius:13px 13px 13px 3px;place-items:center;width:47px;height:49px;padding-bottom:8px;font-family:Georgia,serif;font-size:37px;display:grid}.brand-caption{letter-spacing:.1px;color:var(--muted);margin-top:1px;font-size:11px;font-weight:500;display:block}.private-label{color:var(--muted);align-items:center;gap:6px;font-size:12px;display:flex}.private-label span{background:#537965;border-radius:50%;width:6px;height:6px}nav{background:#e4eaf7;border-radius:14px;gap:5px;margin-bottom:36px;padding:5px;display:flex}nav button{width:33.333%;min-height:44px;color:var(--muted);background:0 0;border-radius:10px;padding:11px 8px}nav button[aria-current=page]{color:var(--blue);background:#fff;box-shadow:0 2px 5px #2138630c}.overline{color:var(--muted);margin-bottom:7px;font-size:13px;font-weight:500}.study-heading{justify-content:space-between;align-items:center;margin-bottom:27px;display:flex}.due-pill{color:var(--deep);white-space:nowrap;background:#e2e8fb;border-radius:30px;padding:8px 12px;font-size:12px}.session-line{color:var(--muted);justify-content:space-between;margin-bottom:10px;font-size:12px;display:flex}.track{background:#dfe6f6;border-radius:3px;height:4px;margin-bottom:22px;overflow:hidden}.track span{background:var(--blue);height:100%;transition:width .2s;display:block}.flashcard{border:1px solid var(--line);background:#fff;border-radius:22px;min-height:370px;padding:24px 30px 30px;position:relative;overflow:hidden;box-shadow:0 7px 0 -3px #e5eaf5,0 14px 0 -7px #dce3f0}.card-top{justify-content:space-between;align-items:center;gap:10px;display:flex}.category{color:var(--deep);background:#f5f7fe;border:1px solid #cbd6f5;border-radius:5px;padding:5px 9px;font-size:12px}.card-number{color:#818ca4;font-variant-numeric:tabular-nums;font-size:13px}.prompt{padding-top:32px}.language-label{color:var(--muted);margin-bottom:13px;font-size:12px;display:block}.prompt h2{letter-spacing:-.8px;max-width:540px;font-size:clamp(27px,5vw,36px);font-weight:600;line-height:1.3}.hidden-answer{text-align:center;color:var(--muted);margin:22px auto 0}.hidden-answer>span{color:#e1e8fb;font-family:Georgia,serif;font-size:80px;line-height:1}.hidden-answer p{margin-top:10px;font-size:12px}.answer{border-top:1px dashed #cfd8ec;margin-top:28px;padding-top:24px;animation:.18s ease-out appear}.spanish{color:var(--blue);letter-spacing:-.7px;overflow-wrap:anywhere;font-family:Georgia,Times New Roman,serif;font-size:clamp(28px,5vw,37px);line-height:1.3}.example{margin-top:22px;font-size:17px}.translation{color:var(--muted);margin-top:4px;font-size:14px}.note{color:#526080;background:#f4f6fb;border-radius:8px;align-items:flex-start;gap:10px;margin-top:23px;padding:13px 15px;font-size:13px;line-height:1.6;display:flex}.note>span{color:var(--blue);font-size:18px}.note p{line-height:1.6}.actions{margin-top:29px}.primary,.secondary{border-radius:12px;justify-content:center;align-items:center;gap:15px;min-height:49px;padding:13px 22px;font-size:15px;font-weight:650;text-decoration:none;display:inline-flex}.primary{background:var(--blue);color:#fff}.primary:hover{background:#1b3cb4}.secondary{color:var(--deep);background:#e8edf9}.secondary:hover{background:#dbe4f9}.reveal{text-align:center;justify-content:space-between;width:100%}.reveal span{opacity:.7;font-size:22px}.keyboard-hint{text-align:center;color:var(--muted);margin-top:13px;font-size:11px}.rating-prompt{color:var(--muted);text-align:center;margin-bottom:13px;font-size:13px}.ratings{grid-template-columns:repeat(4,1fr);gap:9px;display:grid}.rating{min-height:70px;color:var(--ink);border:1px solid var(--line);background:#fff;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:15px 4px;display:flex}.rating strong{font-size:14px}.rating span{opacity:.85;font-size:11px;font-weight:400}.rating.again{color:#97482e;background:#fff3ee;border-color:#f6d7cc}.rating.hard{color:#74550a;background:#fff9e4;border-color:#efdfa7}.rating.good{background:var(--blue);color:#fff;border-color:var(--blue)}.rating.easy{color:#286044;background:#e8f3ee;border-color:#c9e2d5}.rating:active{transform:scale(.97)}footer{color:#7a85a0;justify-content:space-between;gap:14px;margin-top:36px;padding-bottom:10px;font-size:10px;display:flex}footer span{text-align:right}#toast:not(:empty){left:50%;bottom:max(25px,env(safe-area-inset-bottom));background:var(--deep);color:#fff;z-index:5;border-radius:13px;width:max-content;max-width:calc(100% - 36px);padding:14px 20px;font-size:13px;line-height:1.5;position:fixed;transform:translate(-50%);box-shadow:0 5px 25px #0002}#notice{background:#fff4d5;border:1px solid #ecdbad;border-radius:12px;margin-bottom:20px;padding:14px;font-size:13px;line-height:1.5}.empty{text-align:center;padding:45px 16px}.empty p{max-width:380px;color:var(--muted);margin:17px auto 24px;font-size:15px}.empty .primary{margin-top:5px}.text-button{color:var(--blue);background:0 0;min-height:44px;margin:9px auto 0;padding:14px;font-size:13px;display:block}.completion-mark{background:var(--yellow);width:80px;height:80px;color:var(--deep);border-radius:50%;place-items:center;margin:0 auto 28px;font-size:38px;display:grid;transform:rotate(-9deg)}.complete .overline{margin-bottom:8px;font-size:13px}.complete h1{font-family:Georgia,serif;font-size:40px;font-weight:400}.giant-mark{color:var(--blue);letter-spacing:-4px;margin-bottom:25px;font-family:Georgia,serif;font-size:73px;display:block}.page-heading{margin-bottom:27px}.page-heading>p:last-child{color:var(--muted);margin-top:12px;font-size:14px}.search-wrap{border:1px solid var(--line);background:#fff;border-radius:12px;align-items:center;gap:12px;padding:0 14px;display:flex}.search-wrap>span{color:var(--muted);font-size:30px}input[type=search]{width:100%;color:var(--ink);background:0 0;border:0;min-width:0;padding:15px 0;font-size:16px}.browse-filter{color:var(--muted);align-items:center;gap:9px;margin:18px 0;font-size:12px;display:flex}select{border:1px solid var(--line);min-width:0;max-width:58%;color:var(--ink);background:0 0;border-radius:8px;min-height:44px;padding:9px 7px;font-size:13px}#result-count{white-space:nowrap;margin-left:auto}.browse-card{border-bottom:1px solid var(--line);background:0 0}.browse-card summary{cursor:pointer;justify-content:space-between;align-items:center;gap:20px;padding:18px 3px;list-style:none;display:flex}.browse-card summary::-webkit-details-marker{display:none}.list-category{color:var(--muted);margin-bottom:6px;font-size:10px;display:block}.browse-card summary strong{font-size:16px;font-weight:550;line-height:1.5;display:block}.plus{color:var(--blue);font-size:25px;font-weight:300}.browse-card[open] .plus{transform:rotate(45deg)}.browse-answer{padding:0 3px 24px}.browse-answer .spanish{margin:0 0 14px;font-size:27px}.browse-answer .note{margin:14px 0;display:block}.muted{color:var(--muted)}.small{color:var(--muted);font-size:12px;line-height:1.6}.stats{grid-template-columns:1fr 1fr;gap:22px;margin:30px 0;display:grid}.stats>div{border-left:3px solid var(--blue);padding:2px 0 2px 17px}.stats strong{letter-spacing:-1px;font-size:34px;font-weight:650;display:block}.stats small{color:#8b97af;letter-spacing:0;font-size:18px;font-weight:400}.stats span{color:var(--muted);margin-top:4px;font-size:12px;display:block}.progress-panel,.settings-panel{border:1px solid var(--line);background:#fff;border-radius:18px;margin-top:22px;padding:24px}.panel-heading{justify-content:space-between;align-items:center;gap:8px;display:flex}.panel-heading h2{font-size:16px}.panel-heading>span{color:var(--muted);font-size:11px}.week-chart{justify-content:space-between;gap:12px;margin:25px 0;display:flex}.day{text-align:center;color:var(--muted);flex:1;font-size:10px}.bar-space{justify-content:center;align-items:flex-end;height:95px;margin:8px 0;display:flex}.bar{background:#dce5ff;border-radius:6px 6px 0 0;width:100%;max-width:40px}.bar.today{background:var(--blue)}.progress-meta{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;gap:8px;padding-top:18px;font-size:11px;display:flex}.progress-meta b{color:var(--ink)}.settings-panel h2{letter-spacing:-.4px;font-size:19px}.settings-panel h3{font-size:16px}.settings-panel p{color:var(--muted);margin:12px 0 18px;font-size:13px}.settings-panel .small{font-size:11px}.backup-actions{flex-wrap:wrap;gap:10px;display:flex}.backup-actions>*{white-space:nowrap;flex:1;padding-inline:14px;font-size:13px}.file-button{cursor:pointer;position:relative;overflow:hidden}.file-button input{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;inset:0}hr{border:0;border-top:1px solid var(--line);margin:23px 0}.help{border-top:1px solid var(--line);margin-top:23px;padding-top:9px}.help summary{cursor:pointer;min-height:44px;padding:14px 0;font-size:13px}.import-preview{border:1px solid var(--line);background:#f1f5ff;border-radius:12px;margin-top:20px;padding:16px}.compact{padding:40px 0}.compact h2{font-size:22px}@keyframes appear{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media (min-width:800px){.shell{padding-top:44px}.flashcard{min-height:390px;padding:27px 36px 32px}.prompt{padding-top:37px}.hidden-answer{margin-top:25px}.masthead{margin-bottom:40px}}@media (max-width:480px){.shell{padding:24px 20px max(16px,env(safe-area-inset-bottom))}.masthead{margin-bottom:26px}.private-label{font-size:10px}.brand{font-size:24px}.brand-caption{font-size:10px}.brand-mark{width:42px;height:44px;font-size:34px}nav{margin-bottom:29px}.study-heading{margin-bottom:24px}.flashcard{border-radius:18px;min-height:348px;padding:21px 23px 26px}.prompt{padding-top:30px}.hidden-answer{margin-top:21px}.hidden-answer>span{font-size:76px}.ratings{gap:7px}.rating{padding:14px 2px}.actions{margin-top:27px}footer{margin-top:29px;font-size:9px;line-height:1.5}.progress-panel,.settings-panel{padding:20px}.stats strong{font-size:31px}.page-heading h1{max-width:280px}.empty{padding:36px 0}.session-line{font-size:11px}}@media (max-width:350px){.shell{padding-inline:14px}.private-label{display:none}.flashcard{padding:20px}.ratings{gap:5px}.rating strong{font-size:12px}.progress-meta{font-size:10px}.stats{gap:10px}.stats>div{padding-left:12px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.signin-form{text-align:left;flex-direction:column;gap:12px;max-width:360px;margin:24px auto;display:flex}.signin-form label{color:var(--muted);font-size:13px}.signin-form input{border:1px solid var(--line);width:100%;min-height:49px;color:var(--ink);border-radius:12px;padding:13px;font-size:16px}.signin-form button{width:100%}#notice button{margin-top:12px;display:block}