:root{--bg:#f4f1e9;--paper:#fffdf8;--ink:#19211d;--muted:#66706a;--line:#deddd5;--green:#173d2b;--green2:#24573d;--lime:#d9efc1;--blue:#dfeafa;--shadow:0 14px 40px #18221c12}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--ink);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,textarea,select{font:inherit}button{cursor:pointer}.brand{letter-spacing:-.055em;font-size:25px;font-weight:900}.version,.eyebrow{letter-spacing:.13em;color:#728078;font-size:11px;font-weight:800}.version{margin-top:4px}.muted{color:var(--muted)}.center{text-align:center;place-content:center;min-height:100vh;display:grid}.card{background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px;padding:24px}.authShell{grid-template-columns:1.1fr .9fr;align-items:center;gap:70px;max-width:1120px;min-height:100vh;margin:auto;padding:48px;display:grid}.authPitch h1{letter-spacing:-.06em;margin:35px 0 24px;font-family:Georgia,serif;font-size:clamp(52px,7vw,88px);line-height:.93}.authPitch>p{max-width:600px;color:var(--muted);font-size:19px;line-height:1.55}.flow{letter-spacing:.12em;flex-wrap:wrap;align-items:center;gap:13px;margin-top:36px;font-size:11px;font-weight:800;display:flex}.flow span{background:#edf4e9;border:1px solid #b8c8bc;border-radius:99px;padding:10px 13px}.authCard{justify-self:end;width:100%;max-width:430px}.authCard h2{letter-spacing:-.03em;font-size:27px}.switch{background:#ecebe5;border-radius:12px;padding:4px;display:flex}.switch button{color:var(--muted);background:0 0;border:0;border-radius:9px;flex:1;padding:9px;font-weight:700}.switch button.active{color:var(--ink);background:#fff;box-shadow:0 1px 5px #0001}.stack{gap:15px;display:grid}.stackGap{gap:18px;display:grid}label{color:#59635d;gap:7px;font-size:12px;font-weight:750;display:grid}input,textarea,select{width:100%;color:var(--ink);background:#fff;border:1px solid #d7d8d2;border-radius:11px;outline:none;padding:12px}input:focus,textarea:focus,select:focus{border-color:#73927f;box-shadow:0 0 0 3px #dce9df}.primary{background:var(--green);color:#fff;border:0;border-radius:12px;padding:12px 17px;font-weight:800}.primary:hover{background:var(--green2)}.primary:disabled{opacity:.55;cursor:not-allowed}.ghost{background:0 0;border:1px solid #ccd0cc;border-radius:10px;padding:10px;font-weight:700}.notice{color:#68551c;background:#fff1c8;border:1px solid #ead493;border-radius:11px;margin-top:14px;padding:11px 13px;font-size:13px}.notice.inline{justify-content:space-between;margin:0 0 20px;display:flex}.notice.inline button{background:0 0;border:0;font-size:20px}.appShell{grid-template-columns:225px 1fr;min-height:100vh;display:grid}.sidebar{background:#ece9df;border-right:1px solid #d9d8d1;flex-direction:column;height:100vh;padding:27px 20px;display:flex;position:sticky;top:0}.sidebar nav{gap:5px;margin-top:48px;display:grid}.sidebar nav button{text-align:left;color:#657068;background:0 0;border:0;border-radius:10px;justify-content:space-between;padding:11px 13px;font-weight:750;display:flex}.sidebar nav button.active{color:#173d2b;background:#fffdf8;box-shadow:0 2px 8px #0000000c}.sidebar nav em{background:var(--green);color:#fff;border-radius:99px;padding:1px 7px;font-size:11px;font-style:normal}.sideBottom{gap:12px;margin-top:auto;display:grid}.aiLock{border:1px solid #cfd4cc;border-radius:13px;grid-template-columns:auto 1fr;align-items:center;column-gap:8px;padding:12px;display:grid}.aiLock span{background:#dfe5dd;border-radius:5px;padding:4px;font-size:10px;font-weight:900}.aiLock b{font-size:13px}.aiLock small{color:var(--muted);grid-column:2}.content{width:100%;max-width:1380px;margin:auto;padding:34px 42px 70px}.topbar{justify-content:space-between;align-items:center;margin-bottom:28px;display:flex}.topbar h1{letter-spacing:-.04em;margin:4px 0 0;font-family:Georgia,serif;font-size:38px}.userChip{color:#5d6862;background:#fff9;border:1px solid #d2d5d0;border-radius:99px;padding:8px 11px;font-size:12px}.hero{justify-content:space-between;align-items:end;padding:29px;display:flex}.hero h2,.card h2{letter-spacing:-.035em;margin:7px 0 8px;font-family:Georgia,serif;font-size:30px}.hero p{color:var(--muted);margin:0}.stats{grid-template-columns:repeat(4,1fr);gap:14px;margin:15px 0;display:grid}.stat{gap:5px;padding:19px;display:grid}.stat span{color:var(--muted);font-size:12px;font-weight:700}.stat strong{letter-spacing:-.05em;font-size:31px}.stat small{color:#8a928d}.grid2{grid-template-columns:1fr 1fr;gap:15px;display:grid}.cardHead,.studyTop{justify-content:space-between;align-items:start;gap:18px;display:flex}.cardHead h3{margin:0}.pill{background:var(--lime);letter-spacing:.06em;white-space:nowrap;border-radius:99px;padding:6px 9px;font-size:10px;font-weight:850}.mutedPill{color:#747b76;background:#e9e8e2}.grid2 .card p{color:#59635d;line-height:1.6}.libraryGrid{grid-template-columns:minmax(360px,.82fr) minmax(420px,1.18fr);gap:18px;display:grid}.formGrid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.span2{grid-column:span 2}.uploadCard label+label{margin-top:13px}.dropzone{text-align:center;background:#f3f7f0;border:1.5px dashed #9aafa0;border-radius:16px;gap:6px;margin-top:13px;padding:28px;display:grid;position:relative}.dropzone input{opacity:0;cursor:pointer;position:absolute;inset:0}.dropzone span{color:var(--muted);font-size:12px}.dropzone.disabled{opacity:.55}.process{background:#e9f1e8;border-radius:10px;margin-top:12px;padding:10px 12px;font-size:12px;font-weight:700}.courseCard .score{color:var(--green);font-size:27px;font-weight:900}.meta{flex-wrap:wrap;gap:8px;margin:11px 0 15px;display:flex}.meta span{background:#efeee9;border-radius:7px;padding:6px 8px;font-size:11px}.topicChips{flex-wrap:wrap;gap:7px;display:flex}.topicChips>span{background:#f8faf7;border:1px solid #d7dcd6;border-radius:8px;padding:6px 8px;font-size:11px}.topicChips small{color:#7a847e;margin-left:6px}.materialRow{border-top:1px solid #ecebe6;justify-content:space-between;gap:10px;margin-top:12px;padding-top:12px;font-size:12px;display:flex}.materialRow span{color:var(--muted)}.studyWrap{max-width:780px;margin:auto}.study{padding:32px}.studyTop h2{margin-top:8px;font-size:39px}.timer{text-align:center;letter-spacing:-.08em;margin:30px 0 4px;font-size:76px;font-weight:900}.timerBtns{justify-content:center;gap:8px;display:flex}.timerBtns button,.ratings button,.confidence button{background:#fff;border:1px solid #ccd1cc;border-radius:9px;padding:9px 12px;font-weight:750}.recallPrompt{background:#edf4e9;border:1px solid #d8e5d4;border-radius:15px;margin:30px 0 18px;padding:20px}.recallPrompt span{letter-spacing:.12em;color:#617263;font-size:10px;font-weight:900}.recallPrompt p{margin-bottom:0;line-height:1.65}.study details{border-top:1px solid #e3e3de;border-bottom:1px solid #e3e3de;margin:15px 0;padding:15px 0}.study details p{color:var(--muted);line-height:1.6}.confidence{gap:10px;margin:22px 0;display:grid}.confidence>div{gap:7px;display:flex}.confidence button.selected{background:var(--green);color:#fff;border-color:var(--green)}.confidence small{color:var(--muted)}.wide{width:100%}.empty{text-align:center;padding:50px}.recallGrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px;display:grid}.recallIntro{grid-column:span 2}.flashcard{flex-direction:column;min-height:235px;display:flex}.flashcard h3{font-family:Georgia,serif;font-size:23px;line-height:1.25}.flashcard>.primary{align-self:start;margin-top:auto}.answer{background:#f2f1eb;border-radius:12px;margin:10px 0;padding:14px;line-height:1.5}.ratings{grid-template-columns:repeat(4,1fr);gap:6px;margin-top:auto;display:grid}.ratings button:first-child{background:#fff0ec}.ratings button:nth-child(4){background:#edf6e8}.memoryExample{color:#eef5ed;background:#1f3d2c;border-radius:12px;margin-top:25px;padding:16px;font-size:13px;font-weight:700}.memoryGrid{align-items:start}@media (max-width:980px){.appShell{grid-template-columns:80px 1fr}.sidebar{padding:23px 12px}.sidebar .brand{font-size:15px}.version,.sidebar nav button{font-size:0}.sidebar nav button{height:43px;position:relative}.sidebar nav button:after{content:"•";margin:auto;font-size:24px}.aiLock,.sideBottom .ghost{display:none}.stats{grid-template-columns:1fr 1fr}.libraryGrid,.authShell{grid-template-columns:1fr}.authCard{justify-self:start}}@media (max-width:680px){.content{padding:24px 15px 60px}.appShell{display:block}.sidebar{z-index:5;background:#f1efe8;border-top:1px solid #d4d5d0;border-right:0;width:100%;height:60px;padding:7px;display:block;position:fixed;top:auto;bottom:0}.sidebar>div:first-child,.sideBottom{display:none}.sidebar nav{grid-template-columns:repeat(5,1fr);margin:0;display:grid}.sidebar nav button{text-align:center;justify-content:center;height:45px;padding:5px;font-size:10px}.sidebar nav button:after,.sidebar nav em{display:none}.topbar{align-items:end}.topbar h1{font-size:31px}.userChip{display:none}.stats,.grid2,.recallGrid{grid-template-columns:1fr}.recallIntro{grid-column:auto}.hero{gap:20px;display:grid}.libraryGrid{display:block}.stackGap{margin-bottom:15px}.formGrid{grid-template-columns:1fr}.span2{grid-column:auto}.timer{font-size:60px}.authShell{padding:26px}.authPitch h1{font-size:55px}.authPitch{padding-top:25px}.ratings{grid-template-columns:1fr 1fr}.memoryGrid{display:grid}}