:root{color:#20251f;font-synthesis:none;text-rendering:optimizelegibility;--bg:#f4f2ec;--surface:#fffdf8;--surface-strong:#fff;--ink:#20251f;--muted:#6d756a;--line:#deded4;--primary:#245c45;--primary-hover:#174832;--primary-soft:#dcebdd;--accent:#e6bd67;--danger:#b4493f;--danger-soft:#f9e1dd;--shadow:0 22px 60px #26302417;background:#f4f2ec;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}:root[data-theme=dark]{--bg:#171b17;--surface:#202620;--surface-strong:#272e27;--ink:#f5f4ec;--muted:#a8b1a4;--line:#3c463b;--primary:#78b793;--primary-hover:#9bcbaa;--primary-soft:#2d4838;--accent:#e6bd67;--danger:#ef9187;--danger-soft:#4c2d2b;--shadow:0 22px 60px #00000038}*{box-sizing:border-box}html{background:var(--bg);min-width:320px;min-height:100%}body{background:var(--bg);min-width:320px;min-height:100vh;color:var(--ink);margin:0}button,input,textarea{font:inherit}button{color:inherit}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid color-mix(in srgb, var(--accent) 75%, transparent);outline-offset:2px}button:disabled{cursor:not-allowed;opacity:.48}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--ink)}h1,h2{letter-spacing:-.035em;font-family:Iowan Old Style,Palatino Linotype,Georgia,serif}.app-shell{grid-template-rows:auto 1fr auto;min-height:100vh;display:grid}.site-header{justify-content:space-between;align-items:center;width:min(1180px,100% - 32px);min-height:76px;margin:0 auto;display:flex}.brand{cursor:pointer;background:0 0;border:0;align-items:center;gap:10px;padding:8px 0;font-size:1.08rem;font-weight:700;display:inline-flex}.brand-mark{color:#fff;background:var(--primary);width:34px;height:34px;box-shadow:0 6px 16px color-mix(in srgb, var(--primary) 22%, transparent);border-radius:10px;place-items:center;font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;font-size:1.25rem;display:grid}.icon-button{border:1px solid var(--line);background:var(--surface);cursor:pointer;border-radius:50%;width:40px;height:40px;font-size:1.2rem}main{width:100%}footer{border-top:1px solid var(--line);width:min(1180px,100% - 32px);color:var(--muted);text-align:center;margin:28px auto 0;padding:22px 0 28px;font-size:.78rem}.page{width:min(1180px,100% - 32px);margin:0 auto}.eyebrow{color:var(--primary);text-transform:uppercase;letter-spacing:.12em;margin-bottom:9px;font-size:.72rem;font-weight:700;display:block}.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}.hero-panel{color:#f7f4e9;min-height:315px;box-shadow:var(--shadow);background:radial-gradient(circle at 87% 0,#e6bd6761,#0000 27%),linear-gradient(135deg,#1f4b39 0%,#2b654d 100%);border-radius:30px;justify-content:space-between;align-items:end;gap:40px;padding:48px 56px;display:flex;overflow:hidden}.hero-panel .eyebrow{color:#e9c77f}.hero-panel h1{color:#fffdf5;max-width:680px;margin-bottom:22px;font-size:clamp(3.2rem,8vw,5.8rem);line-height:.86}.hero-panel p{color:#ffffffc2;max-width:560px;margin-bottom:0;line-height:1.65}.hero-stats{border-left:1px solid #fff3;flex-direction:column;flex:0 0 118px;padding-left:26px;display:flex}.hero-stats div{padding:14px 0}.hero-stats strong,.hero-stats span{display:block}.hero-stats strong{color:#fff;font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;font-size:2rem}.hero-stats span{color:#ffffffa6;text-transform:uppercase;letter-spacing:.08em;font-size:.72rem}.toolbar-panel{border:1px solid var(--line);background:var(--surface);border-radius:18px;grid-template-columns:1fr auto auto;align-items:end;gap:26px;margin:20px 0 52px;padding:22px 26px;display:grid;box-shadow:0 8px 30px #20251f0a}.create-form label,.card-form label,.answer-form label{margin-bottom:8px;font-size:.82rem;font-weight:700;display:block}.input-action-row{gap:10px;display:flex}input,textarea{border:1px solid var(--line);background:var(--surface-strong);width:100%;color:var(--ink);border-radius:11px;padding:12px 14px;transition:border-color .15s,box-shadow .15s}input::placeholder,textarea::placeholder{color:color-mix(in srgb, var(--muted) 68%, transparent)}input:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb, var(--primary) 12%, transparent);outline:none}textarea{resize:vertical;line-height:1.5}.toolbar-divider{background:var(--line);width:1px;height:48px}.import-control{align-items:center;gap:14px;display:flex}.import-control>span{color:var(--muted);font-size:.82rem}.button{cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:11px;justify-content:center;align-items:center;gap:10px;padding:11px 16px;font-size:.85rem;font-weight:700;transition:background .15s,color .15s,border-color .15s,transform .15s;display:inline-flex}.button:not(:disabled):active{transform:translateY(1px)}.button.primary{background:var(--primary);color:#fff}:root[data-theme=dark] .button.primary{color:#102118}.button.primary:hover:not(:disabled){background:var(--primary-hover)}.button.secondary{border-color:var(--line);background:var(--surface-strong)}.button.secondary:hover:not(:disabled),.button.ghost:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}.button.ghost{background:0 0;border-color:#0000}.button.danger{background:var(--danger);color:#fff}.button.small{padding:8px 12px}.button.large{padding:14px 22px}.button-count{background:#ffffff29;border-radius:8px;place-items:center;min-width:24px;height:24px;padding:0 6px;display:inline-grid}.quiet-button,.deck-actions button,.card-meta-actions button{color:var(--muted);cursor:pointer;background:0 0;border:0;padding:5px;font-size:.78rem;font-weight:700}.quiet-button:hover,.deck-actions button:hover,.card-meta-actions button:hover{color:var(--primary)}.text-danger,.deck-actions .text-danger,.card-meta-actions .text-danger{color:var(--danger)}.notice{background:var(--primary-soft);color:var(--primary);border-radius:10px;justify-content:space-between;align-items:center;margin:-34px 0 30px;padding:13px 16px;font-size:.86rem;display:flex}.notice button{color:inherit;cursor:pointer;background:0 0;border:0;font-size:1.2rem}.section-heading{justify-content:space-between;align-items:end;margin-bottom:18px;display:flex}.section-heading h2{margin-bottom:0;font-size:2.1rem}.section-heading.compact{align-items:center}.deck-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.deck-tile{background:var(--surface);border:1px solid var(--line);border-radius:18px;min-width:0;transition:transform .18s,border-color .18s,box-shadow .18s;overflow:hidden}.deck-tile:hover{border-color:color-mix(in srgb, var(--primary) 40%, var(--line));transform:translateY(-2px);box-shadow:0 14px 36px #25392814}.deck-main{text-align:left;cursor:pointer;background:0 0;border:0;flex-direction:column;align-items:flex-start;width:100%;min-height:190px;padding:22px;display:flex}.deck-main h3{margin:20px 0 5px;font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;font-size:1.55rem;line-height:1.15}.deck-main p{color:var(--muted);font-size:.82rem}.due-pill,.state-chip{color:var(--primary);background:var(--primary-soft);border-radius:999px;align-items:center;padding:5px 9px;font-size:.68rem;font-weight:700;display:inline-flex}.due-pill.complete{color:var(--muted);background:color-mix(in srgb, var(--muted) 12%, transparent)}.open-label{color:var(--primary);margin-top:auto;font-size:.78rem;font-weight:700}.deck-actions{border-top:1px solid var(--line);justify-content:flex-end;align-items:center;gap:8px;min-height:43px;padding:8px 16px;display:flex}.deck-actions form{align-items:center;gap:5px;width:100%;display:flex}.deck-actions form input{padding:7px 9px;font-size:.78rem}.empty-state{text-align:center;border:1px dashed var(--line);background:color-mix(in srgb, var(--surface) 70%, transparent);border-radius:18px;flex-direction:column;justify-content:center;align-items:center;min-height:260px;padding:36px;display:flex}.empty-state h3{margin:20px 0 8px;font-family:Iowan Old Style,Palatino 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h1{margin-bottom:8px;font-size:clamp(2.4rem,6vw,4rem);line-height:1}.deck-title-area>p{color:var(--muted);margin-bottom:0}.title-with-action{align-items:center;gap:12px;display:flex}.title-with-action h1{margin-bottom:0}.study-actions{gap:10px;display:flex}.rename-title-form{align-items:center;gap:8px;display:flex}.rename-title-form input{min-width:300px;font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;font-size:1.4rem}.deck-columns{grid-template-columns:minmax(280px,.75fr) minmax(0,1.6fr);align-items:start;gap:18px;margin-top:18px;display:grid}.card-editor-panel,.cards-panel{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:26px}.card-editor-panel{position:sticky;top:18px}.card-editor-panel h2{margin-bottom:22px;font-size:1.8rem}.card-form{gap:17px;display:grid}.optional{color:var(--muted);font-weight:400}.form-actions{gap:8px;display:flex}.export-actions{gap:5px;display:flex}.card-list{gap:10px;margin:0;padding:0;list-style:none;display:grid}.card-list>li{border:1px solid var(--line);background:var(--surface-strong);border-radius:13px;grid-template-columns:32px minmax(0,1fr) auto;gap:14px;padding:18px;display:grid}.card-list>li.is-editing{border-color:var(--primary);box-shadow:0 0 0 2px color-mix(in srgb, var(--primary) 10%, transparent)}.card-number{background:var(--primary-soft);width:27px;height:27px;color:var(--primary);border-radius:8px;place-items:center;font-size:.72rem;font-weight:700;display:grid}.card-content{grid-template-columns:1fr 1fr;gap:18px;min-width:0;display:grid}.card-content div{min-width:0}.card-content span{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:.61rem;font-weight:700}.card-content p{white-space:pre-wrap;overflow-wrap:anywhere;margin:5px 0 0;line-height:1.45}.card-content .card-extra{border-top:1px solid var(--line);grid-column:1/-1;padding-top:10px}.card-content .card-extra p{color:var(--muted);font-size:.84rem}.card-meta-actions{flex-direction:column;align-items:flex-end;gap:4px;display:flex}.small-empty{min-height:200px}.study-page,.practice-page{max-width:900px}.study-topbar{justify-content:space-between;align-items:center;display:flex}.study-context{color:var(--muted);gap:12px;font-size:.78rem;display:flex}.study-context strong{color:var(--ink)}.progress-track{background:var(--line);border-radius:999px;height:5px;overflow:hidden}.progress-track span{border-radius:inherit;background:var(--primary);height:100%;transition:width .25s;display:block}.review-stage{flex-direction:column;align-items:center;padding:40px 0 20px;display:flex}.review-card{border:1px solid var(--line);background:var(--surface);width:100%;min-height:390px;color:var(--ink);box-shadow:var(--shadow);cursor:pointer;border-radius:24px;flex-direction:column;justify-content:center;align-items:center;padding:50px;display:flex;position:relative}.review-card.flipped{border-color:color-mix(in srgb, var(--primary) 40%, var(--line))}.review-card-content{white-space:pre-wrap;overflow-wrap:anywhere;text-align:center;max-width:720px;font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;font-size:clamp(2rem,5vw,3.5rem);line-height:1.12}.review-extra{max-width:680px;color:var(--muted);text-align:center;border-top:1px solid var(--line);white-space:pre-wrap;margin-top:26px;padding-top:18px}.flip-hint{color:var(--muted);font-size:.73rem;position:absolute;bottom:20px}kbd{border:1px solid var(--line);background:var(--surface-strong);color:var(--muted);border-bottom-width:2px;border-radius:5px;padding:1px 5px;font-family:inherit;font-size:.64rem}.reveal-button{margin-top:24px}.rating-controls{text-align:center;width:100%;margin-top:25px}.rating-controls p{color:var(--muted);margin-bottom:10px;font-size:.82rem}.rating-controls>div{grid-template-columns:repeat(4,1fr);gap:9px;display:grid}.rating-button{border:1px solid var(--line);background:var(--surface);cursor:pointer;border-radius:11px;justify-content:center;align-items:center;gap:9px;min-height:52px;font-weight:700;display:flex}.rating-button:hover{border-color:var(--primary)}.rating-again{color:var(--danger)}.rating-good{color:var(--primary)}.study-finish{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:560px;display:flex}.study-finish h1{max-width:700px;margin:8px 0 16px;font-size:clamp(2.5rem,7vw,4.4rem);line-height:1}.study-finish p{max-width:560px;color:var(--muted);margin-bottom:24px;line-height:1.6}.finish-mark{background:var(--primary-soft);width:74px;height:74px;color:var(--primary);border-radius:50%;place-items:center;margin-bottom:22px;font-size:2rem;display:grid}.rating-summary{grid-template-columns:repeat(4,1fr);gap:8px;width:min(520px,100%);margin:8px 0 28px;display:grid}.rating-summary div{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:14px}.rating-summary strong,.rating-summary span{display:block}.rating-summary strong{font-size:1.25rem}.rating-summary span{color:var(--muted);font-size:.7rem}.practice-intro{border:1px solid var(--line);background:var(--surface);border-radius:22px;width:min(720px,100%);margin:45px auto;padding:42px}.practice-intro h1{margin-bottom:15px;font-size:clamp(2.7rem,7vw,4.6rem);line-height:1}.practice-intro>p{color:var(--muted);line-height:1.6}.test-blueprint{grid-template-columns:1fr 1fr;gap:10px;margin:26px 0;display:grid}.test-blueprint div{background:var(--primary-soft);color:var(--primary);border-radius:12px;padding:18px}.test-blueprint strong,.test-blueprint span{display:block}.test-blueprint strong{font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;font-size:1.8rem}.test-blueprint span{font-size:.74rem}.review-toggle{border:1px solid var(--line);cursor:pointer;border-radius:12px;align-items:flex-start;gap:12px;margin:25px 0;padding:16px;display:flex}.review-toggle input{width:18px;height:18px;accent-color:var(--primary)}.review-toggle strong,.review-toggle small{display:block}.review-toggle small{color:var(--muted);margin-top:4px;line-height:1.4}.practice-stage{border:1px solid var(--line);background:var(--surface);border-radius:22px;margin:38px 0;padding:42px}.practice-stage>h1{white-space:pre-wrap;margin:22px 0 38px;font-size:clamp(2rem,5vw,3.2rem);line-height:1.12}.answer-form{gap:10px;display:grid}.answer-feedback{background:var(--primary-soft);border-radius:14px;margin-top:20px;padding:24px}.answer-feedback.incorrect{background:var(--danger-soft)}.answer-feedback>span{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:.7rem;font-weight:700;display:block}.answer-feedback>strong{white-space:pre-wrap;margin:8px 0 18px;font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;font-size:1.6rem;display:block}.answer-feedback>p{color:var(--muted);white-space:pre-wrap}.self-check-actions{gap:9px;display:flex}.score-ring{border:9px solid var(--primary-soft);border-top-color:var(--primary);border-radius:50%;place-content:center;width:128px;height:128px;margin-bottom:25px;display:grid}.score-ring strong,.score-ring span{display:block}.score-ring strong{font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;font-size:2.2rem}.score-ring span{color:var(--muted);font-size:.72rem}.centered-state{min-height:60vh;color:var(--muted);place-items:center;display:grid}.modal-backdrop{z-index:20;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#0c100c99;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.modal{border:1px solid var(--line);background:var(--surface);width:min(430px,100%);box-shadow:var(--shadow);border-radius:18px;padding:30px}.modal-icon{border-radius:50%;place-items:center;width:42px;height:42px;font-weight:700;display:grid}.modal-icon.danger{color:var(--danger);background:var(--danger-soft)}.modal h2{margin:17px 0 8px;font-size:1.8rem}.modal p{color:var(--muted);line-height:1.55}.modal-actions{justify-content:flex-end;gap:8px;margin-top:24px;display:flex}@media (width<=850px){.deck-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.toolbar-panel{grid-template-columns:1fr;align-items:stretch}.toolbar-divider{display:none}.import-control{justify-content:space-between}.deck-header-panel{flex-direction:column;align-items:flex-start}.deck-columns{grid-template-columns:1fr}.card-editor-panel{position:static}}@media (width<=600px){.site-header{min-height:64px}.hero-panel{border-radius:22px;flex-direction:column;align-items:flex-start;min-height:360px;padding:34px 25px}.hero-panel h1{font-size:3.7rem}.hero-stats{border-top:1px solid #fff3;border-left:0;flex-direction:row;flex:none;justify-content:space-between;width:100%;padding:14px 0 0}.hero-stats div{padding:4px 0}.hero-stats strong{font-size:1.55rem}.toolbar-panel{margin-bottom:38px;padding:18px}.input-action-row{flex-direction:column}.import-control{flex-direction:column;align-items:stretch}.deck-grid{grid-template-columns:1fr}.deck-main{min-height:168px}.deck-header-panel{padding:25px}.study-actions{flex-direction:column;width:100%}.study-actions .button{width:100%}.title-with-action{flex-direction:column;align-items:flex-start}.rename-title-form{flex-wrap:wrap;width:100%}.rename-title-form input{min-width:0}.card-editor-panel,.cards-panel{padding:20px}.section-heading.compact{flex-direction:column;align-items:flex-start;gap:10px}.card-list>li{grid-template-columns:28px 1fr}.card-content{grid-template-columns:1fr}.card-content .card-extra{grid-column:auto}.card-meta-actions{flex-direction:row;grid-column:2;justify-content:flex-end;align-items:center}.review-card{min-height:370px;padding:35px 23px 62px}.rating-controls>div{grid-template-columns:repeat(2,1fr)}.study-context span{display:none}.rating-summary{grid-template-columns:repeat(2,1fr)}.practice-intro,.practice-stage{padding:26px 21px}.test-blueprint{grid-template-columns:1fr}.self-check-actions{flex-direction:column-reverse}.self-check-actions .button{width:100%}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important}}