:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--lightningcss-light,#17243b)var(--lightningcss-dark,#ededed);background:var(--lightningcss-light,#f5f8fc)var(--lightningcss-dark,#121212);font-family:system-ui,sans-serif}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}:root[data-theme=light]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button{cursor:pointer;color:#fff;background:var(--lightningcss-light,#245caa)var(--lightningcss-dark,#3c5f89);border:0;border-radius:.6rem;padding:.7rem 1rem;font-weight:650}button:hover{background:var(--lightningcss-light,#1d4e91)var(--lightningcss-dark,#4b709c)}button:disabled{cursor:not-allowed;opacity:.6}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,a:focus-visible{outline-offset:2px;outline:3px solid var(--lightningcss-light,#90b8f5)var(--lightningcss-dark,#9bbce5)}input,textarea,select{color:var(--lightningcss-light,#17243b)var(--lightningcss-dark,#ededed);background:var(--lightningcss-light,#fff)var(--lightningcss-dark,#292929);border:1px solid var(--lightningcss-light,#cbd9ea)var(--lightningcss-dark,#555);border-radius:.6rem;width:100%;padding:.7rem .8rem;display:block}:root[data-theme=dark] input{accent-color:#9bbce5}@media (prefers-color-scheme:dark){:root:not([data-theme]) input{accent-color:#9bbce5}}textarea{resize:vertical}label{color:var(--lightningcss-light,#31465f)var(--lightningcss-dark,#d0d0d0);gap:.45rem;font-size:.9rem;font-weight:600;display:grid}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.035em;margin-bottom:.7rem;font-size:clamp(2rem,5vw,3.2rem);line-height:1.1}h2{font-size:1.3rem}h3{font-size:1.04rem}.muted{color:var(--lightningcss-light,#556a82)var(--lightningcss-dark,#b8b8b8)}.small{font-size:.85rem;line-height:1.5}.eyebrow{color:var(--lightningcss-light,#3569a9)var(--lightningcss-dark,#a5bfdf);letter-spacing:.1em;text-transform:uppercase;font-size:.75rem;font-weight:750}.shell{padding:2.5rem 1.5rem 5rem}.topbar{background:var(--lightningcss-light,#fff)var(--lightningcss-dark,#1d1d1d);border-bottom:1px solid var(--lightningcss-light,#e0e9f4)var(--lightningcss-dark,#404040)}.topbar-inner{justify-content:space-between;align-items:center;gap:1rem;width:100%;min-width:0;min-height:4.5rem;padding:0 1.5rem;display:flex}.brand,.user-actions,.inline-actions{flex-wrap:wrap;align-items:center;gap:.6rem;display:flex}.brand{color:var(--lightningcss-light,#1e3d68)var(--lightningcss-dark,#ededed);font-weight:750}.brand-mark,.empty-icon{color:var(--lightningcss-light,#285d9f)var(--lightningcss-dark,#b6cde9);background:var(--lightningcss-light,#e6f0ff)var(--lightningcss-dark,#2b394a);border-radius:.7rem;place-items:center;width:2.2rem;height:2.2rem;font-size:1.2rem;display:grid}.theme-control{flex-wrap:wrap;align-items:center;gap:.4rem;display:flex}.theme-toggle{place-items:center;width:2.75rem;height:2.75rem;padding:.6rem;display:grid}.theme-toggle svg{width:1.3rem;height:1.3rem}.theme-error{color:var(--lightningcss-light,#862f33)var(--lightningcss-dark,#ffb8b8);flex-basis:100%;font-size:.8rem}.standalone-theme{position:absolute;top:1rem;right:1rem}.page-heading{margin:.5rem 0 2rem}.page-heading p:last-child{margin-bottom:0}.layout{grid-template-columns:minmax(210px,260px) minmax(0,1fr);align-items:start;gap:1.3rem;display:grid}.panel{background:var(--lightningcss-light,#fff)var(--lightningcss-dark,#1d1d1d);border:1px solid var(--lightningcss-light,#e0e9f4)var(--lightningcss-dark,#404040);border-radius:.9rem;box-shadow:0 6px 24px var(--lightningcss-light,#1d426509)var(--lightningcss-dark,#0003)}.sidebar{padding:1.25rem}.sidebar h2{margin-bottom:.2rem}.stack-form{gap:.4rem;margin:1.2rem 0;display:flex}.stack-form input{min-width:0}.stack-form button{padding:.6rem;font-size:.85rem}.deck-list{gap:.3rem;display:grid}.deck{text-align:left;color:var(--lightningcss-light,#425975)var(--lightningcss-dark,#d0d0d0);overflow-wrap:anywhere;background:0 0}.deck:hover,.deck.active{color:var(--lightningcss-light,#204f8d)var(--lightningcss-dark,#c9def8);background:var(--lightningcss-light,#eaf2fe)var(--lightningcss-dark,#2c3948)}.content{min-width:0}.content-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;padding:1.5rem;display:flex}.content-header h2{overflow-wrap:anywhere;margin:0 0 .4rem;font-size:1.6rem}.content-header p:last-child{margin-bottom:0}.button-quiet,.button-secondary{color:var(--lightningcss-light,#245caa)var(--lightningcss-dark,#ededed);background:var(--lightningcss-light,#edf4fe)var(--lightningcss-dark,#353535)}.button-quiet:hover,.button-secondary:hover{color:var(--lightningcss-light,#1d4e91)var(--lightningcss-dark,#fff);background:var(--lightningcss-light,#dceafc)var(--lightningcss-dark,#484848)}.button-danger{color:var(--lightningcss-light,#a23d40)var(--lightningcss-dark,#ffd1d1);background:var(--lightningcss-light,#fff0ef)var(--lightningcss-dark,#602c36)}.button-danger:hover{color:var(--lightningcss-light,#7b2c2f)var(--lightningcss-dark,#fff);background:var(--lightningcss-light,#ffe2e0)var(--lightningcss-dark,#793c46)}.tabs{border-bottom:1px solid var(--lightningcss-light,#dce6f2)var(--lightningcss-dark,#404040);gap:.4rem;margin:1.25rem 0;display:flex}.tab{color:var(--lightningcss-light,#52667e)var(--lightningcss-dark,#d0d0d0);background:0 0;border-radius:.6rem .6rem 0 0}.tab:hover{color:var(--lightningcss-light,#245caa)var(--lightningcss-dark,#c9def8);background:var(--lightningcss-light,#eaf2fe)var(--lightningcss-dark,#2c3948)}.tab.active{color:var(--lightningcss-light,#245caa)var(--lightningcss-dark,#c9def8);background:var(--lightningcss-light,#eaf2fe)var(--lightningcss-dark,#2c3948);box-shadow:inset 0 -3px var(--lightningcss-light,#245caa)var(--lightningcss-dark,#8cb2e0)}.search-label{margin-bottom:1rem}.editor{padding:1.3rem}.form{gap:1rem;display:grid}.form h3{margin-bottom:0}.item-list{gap:.8rem;margin-top:1rem;display:grid}.item{justify-content:space-between;align-items:start;gap:1rem;padding:1.2rem;display:flex}.item>div:first-child{min-width:0}.item h3,.item p{overflow-wrap:anywhere}.item h3{margin-bottom:.5rem}.item p:last-child{margin-bottom:0}.multiline{white-space:pre-wrap;overflow-wrap:anywhere}.empty{padding:clamp(1.5rem,4vw,3rem)}.empty-icon{margin-bottom:1.3rem}.study-setup{background:linear-gradient(145deg,var(--lightningcss-light,#fff)var(--lightningcss-dark,#1d1d1d),var(--lightningcss-light,#f3f8ff)var(--lightningcss-dark,#262626));padding:clamp(1.5rem,4vw,2.5rem)}.study-setup h3{margin-bottom:.5rem;font-size:1.6rem}.study-options{grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:1rem;margin:1.5rem 0 .7rem;display:grid}.study-selection{background:var(--lightningcss-light,#fff)var(--lightningcss-dark,#1d1d1d);border:1px solid var(--lightningcss-light,#d8e6f5)var(--lightningcss-dark,#555);border-radius:.8rem;margin:1.5rem 0;padding:1rem}.study-selection summary{cursor:pointer;color:var(--lightningcss-light,#245caa)var(--lightningcss-dark,#b6cde9);font-weight:650}.study-selection .inline-actions{margin-top:1rem}.study-card-selection{gap:.7rem;max-height:15rem;margin-top:1rem;display:grid;overflow:auto}.study-card-selection label{overflow-wrap:anywhere;align-items:start}.study-card-selection input{flex-shrink:0;margin-top:.25rem}.study-start{flex-wrap:wrap;align-items:center;gap:1rem;display:flex}.study-dialog{color:var(--lightningcss-light,#17243b)var(--lightningcss-dark,#ededed);background:var(--lightningcss-light,#f9fbff)var(--lightningcss-dark,#1d1d1d);border:0;border-radius:1.25rem;width:min(94vw,720px);max-height:90dvh;padding:clamp(1.25rem,4vw,2.5rem);box-shadow:0 24px 80px var(--lightningcss-light,#102e5680)var(--lightningcss-dark,#000a)}.study-dialog::backdrop{background:var(--lightningcss-light,#142a47b8)var(--lightningcss-dark,#000b)}.study-dialog-header{justify-content:space-between;align-items:start;gap:1rem;display:flex}.study-dialog-header h2{margin:0;font-size:clamp(1.35rem,4vw,1.9rem)}.study-dialog-header .eyebrow{margin-bottom:.4rem}.study-progress{color:var(--lightningcss-light,#556a82)var(--lightningcss-dark,#b8b8b8);justify-content:space-between;gap:1rem;margin:1.5rem 0 .4rem;font-size:.85rem;display:flex}.study-dialog progress{accent-color:var(--lightningcss-light,#3474c3)var(--lightningcss-dark,#8cb2e0);border:0;border-radius:1rem;width:100%;height:.55rem;display:block;overflow:hidden}.study-card{background:var(--lightningcss-light,#fff)var(--lightningcss-dark,#292929);border:1px solid var(--lightningcss-light,#e0e9f4)var(--lightningcss-dark,#555);border-radius:1rem;min-height:12rem;margin:1.5rem 0;padding:clamp(1.3rem,4vw,2rem);box-shadow:0 8px 26px var(--lightningcss-light,#1d42650d)var(--lightningcss-dark,#0003)}.study-card h3{margin-bottom:0;font-size:clamp(1.2rem,3vw,1.55rem);line-height:1.5}.study-answer{background:var(--lightningcss-light,#edf5ff)var(--lightningcss-dark,#383838);border-radius:.75rem;margin-top:1.5rem;padding:1rem 1.2rem}.study-answer p:last-child{margin-bottom:0;line-height:1.6}.study-actions button{width:100%}.study-navigation{margin-top:1rem}.study-prompt{font-weight:650}.study-ratings{grid-template-columns:repeat(3,minmax(0,1fr));gap:.6rem;display:grid}.study-ratings button{padding:.9rem .5rem}.rating-again{color:#fff;background:var(--lightningcss-light,#a23d40)var(--lightningcss-dark,#71383a)}.rating-again:hover{background:var(--lightningcss-light,#7b2c2f)var(--lightningcss-dark,#854548)}.rating-good{color:var(--lightningcss-light,#76520d)var(--lightningcss-dark,#f5e1b5);background:var(--lightningcss-light,#ffedc5)var(--lightningcss-dark,#5c4c30)}.rating-good:hover{background:var(--lightningcss-light,#fce0a4)var(--lightningcss-dark,#70603f)}.rating-easy{color:#fff;background:var(--lightningcss-light,#237b61)var(--lightningcss-dark,#315c4d)}.rating-easy:hover{background:var(--lightningcss-light,#19634d)var(--lightningcss-dark,#3e705f)}kbd{background:var(--lightningcss-light,#0002)var(--lightningcss-dark,#fff3);border-radius:.3rem;margin-left:.35rem;padding:.1rem .35rem;font-family:inherit;font-size:.75em;display:inline-block}.study-hint{text-align:center;margin:1rem 0 0}.study-summary{padding-top:2rem}.study-celebration{color:var(--lightningcss-light,#237b61)var(--lightningcss-dark,#bde0cf);background:var(--lightningcss-light,#dff5e9)var(--lightningcss-dark,#315c4d);border-radius:1rem;place-items:center;width:3.5rem;height:3.5rem;margin-bottom:1rem;font-size:1.8rem;display:grid}.study-result{font-weight:650}.error{color:var(--lightningcss-light,#862f33)var(--lightningcss-dark,#ffd1d1);background:var(--lightningcss-light,#fff2f1)var(--lightningcss-dark,#602c36);border:1px solid var(--lightningcss-light,#f1c8c8)var(--lightningcss-dark,#a65c68);border-radius:.6rem;padding:.9rem 1rem}.auth-page{place-items:center;min-height:100vh;padding:5rem 1.5rem 1.5rem;display:grid}.auth-card{background:var(--lightningcss-light,#fff)var(--lightningcss-dark,#1d1d1d);border:1px solid var(--lightningcss-light,#e0e9f4)var(--lightningcss-dark,#404040);border-radius:1rem;width:min(100%,440px);padding:clamp(1.5rem,5vw,2.5rem);box-shadow:0 12px 40px var(--lightningcss-light,#1d426512)var(--lightningcss-dark,#0003)}.auth-card h1{font-size:2rem}.auth-card .form{margin:1.5rem 0}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.exchange .form{margin-top:1.5rem}.exchange-options{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;display:grid}.checkbox{align-items:center;gap:.5rem;display:flex}.checkbox input{width:auto}.download{color:var(--lightningcss-light,#245caa)var(--lightningcss-dark,#ededed);background:var(--lightningcss-light,#edf4fe)var(--lightningcss-dark,#353535);border-radius:.6rem;padding:.7rem 1rem;font-weight:650;text-decoration:none;display:inline-block}.download:hover{background:var(--lightningcss-light,#dceafc)var(--lightningcss-dark,#484848)}.preview{margin-top:1.5rem}.preview-list{gap:.5rem;margin-bottom:1rem;display:grid}.preview-list>div{overflow-wrap:anywhere;background:var(--lightningcss-light,#f5f8fc)var(--lightningcss-dark,#292929);border-radius:.5rem;padding:.8rem}.preview-list p{margin:.4rem 0 0}.document{border:1px solid var(--lightningcss-light,#e0e9f4)var(--lightningcss-dark,#555);border-radius:.6rem}.document .content-header{padding:1rem}.document .content-header h3{overflow-wrap:anywhere;margin:0}.document details{padding:0 1rem 1rem}.document summary{color:var(--lightningcss-light,#245caa)var(--lightningcss-dark,#b6cde9);cursor:pointer;font-weight:650}.document details p{max-height:24rem;margin:1rem 0 0;overflow:auto}@media (max-width:700px){.shell{padding:1.8rem 1rem 4rem}.topbar-inner{padding:0 1rem}.layout{grid-template-columns:1fr}.deck-list{flex-wrap:wrap;display:flex}.item{flex-direction:column}.user-actions>.muted{display:none}.tabs{overflow-x:auto}.tab{flex-shrink:0}}
