:root{font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:#233c37;background:#f5f7f4;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--ink: #233c37;--muted: #74837d;--green: #174c3c;--mint: #e1eee7;--line: #e6ebe5;--paper: #fff}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:#f5f7f4}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}.app{width:min(100%,800px);min-height:100dvh;margin:0 auto;padding:0 28px 18px}.app-header{display:flex;align-items:center;gap:12px;padding:26px 0 22px;border-bottom:1px solid var(--line)}.brand-mark{width:39px;height:39px;border-radius:13px;display:grid;place-items:center;color:#fff;background:var(--green);font:800 22px Manrope,sans-serif}.eyebrow{margin:0 0 6px;color:#78877f;font-size:10px;font-weight:700;letter-spacing:.13em}.app-header h1{margin:0;color:var(--ink);font:800 18px Manrope,sans-serif;letter-spacing:-.04em}.app-header h1 span{color:#779387;font-weight:500}.offline-pill{margin-left:auto;color:#72837a;font-size:11px;display:flex;align-items:center;gap:7px}.offline-pill i{width:7px;height:7px;border-radius:50%;background:#68a77d}.tabs{display:flex;gap:4px;overflow-x:auto;border-bottom:1px solid var(--line);scrollbar-width:none}.tabs::-webkit-scrollbar{display:none}.tab{position:relative;flex:0 0 auto;min-height:50px;border:0;border-radius:0;padding:0 14px;background:none;color:#839089;font-size:12px;font-weight:600}.tab.active{color:var(--green)}.tab.active:after{position:absolute;right:13px;bottom:-1px;left:13px;height:2px;background:var(--green);content:""}.tab-count{margin-left:6px;padding:2px 6px;border-radius:8px;background:#f8e7df;color:#aa634b;font-size:10px}.app-main{padding:27px 0 40px}.welcome{padding:9px 2px 24px}.welcome h2{margin:11px 0 10px;color:#1d4136;font:700 clamp(27px,6vw,37px)/1.18 Manrope,sans-serif;letter-spacing:-.045em}.welcome h2 em{color:#719481;font-style:normal}.welcome>p:last-child{color:var(--muted);font-size:13px}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:7px 0 16px}.stat-card{display:flex;min-height:125px;flex-direction:column;align-items:flex-start;padding:15px;border:1px solid var(--line);border-radius:14px;background:#fff}.stat-icon,.quick-icon{display:grid;place-items:center;border-radius:10px}.stat-icon{width:30px;height:30px;margin-bottom:auto;font-size:17px}.mint{background:#e3efe8;color:#47765f}.peach{background:#f8eae1;color:#b27b59}.lilac{background:#eeeafa;color:#8172a1}.stat-card strong{margin-top:12px;color:var(--ink);font:700 24px Manrope,sans-serif}.stat-card>span:last-child{margin-top:2px;color:var(--muted);font-size:10px}.panel{padding:21px;border:1px solid var(--line);border-radius:16px;background:var(--paper);box-shadow:0 4px 18px #314f3b08}.today-panel,.quick-panel{margin-top:13px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:15px}.section-heading h2,.section-heading h3{margin:0;color:var(--ink);font:700 19px Manrope,sans-serif;letter-spacing:-.03em}.text-button{border:0;background:none;color:#537c67;font-size:11px;font-weight:700}.deck-row{display:flex;align-items:center;gap:10px;padding:13px 0 17px}.deck-dot{width:9px;height:9px;flex:0 0 auto;border-radius:50%;background:#7ea88d}.deck-row div{display:flex;flex:1;flex-direction:column;gap:3px}.deck-row strong{font-size:12px}.deck-row small{color:var(--muted);font-size:10px}.deck-progress{color:#668171;font-size:10px}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:0 16px;border:0;border-radius:9px;font-size:12px;font-weight:700}.primary{background:var(--green);color:#fff}.primary:hover{background:#225d49}.primary span{margin-left:auto;font-size:17px}.full{width:100%}.secondary{border:1px solid var(--line);background:#f8faf7;color:var(--green)}.quick-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}.quick-actions button{display:flex;align-items:center;gap:9px;min-width:0;padding:11px;border:1px solid var(--line);border-radius:11px;background:#fff;text-align:left}.quick-icon{width:29px;height:29px;flex:0 0 auto;font-size:17px}.quick-actions button>span:nth-child(2){display:flex;min-width:0;flex-direction:column;gap:4px}.quick-actions strong{font-size:10px}.quick-actions small{color:var(--muted);font-size:9px}.quick-actions b{margin-left:auto;color:#8a9a90}.notice{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;padding:11px 13px;border:1px solid #dce9df;border-radius:10px;background:#edf5ef;color:#315a43;font-size:12px}.icon-button{border:0;background:transparent;color:inherit;font-size:18px}.muted{color:var(--muted);font-size:12px;line-height:1.6}.count-chip{padding:6px 9px;border-radius:20px;background:#edf4ee;color:#4e765d;font-size:10px;font-weight:700}.inline-form,.item-form{display:flex;flex-direction:column;gap:12px}.inline-form>label,.item-form label{display:flex;flex:1;flex-direction:column;gap:6px;color:#586e62;font-size:11px;font-weight:700}.form-row{display:flex;gap:9px}.form-row>label{min-width:0}input,textarea,select{width:100%;min-width:0;padding:10px 11px;border:1px solid #dfe7df;border-radius:8px;outline:none;background:#fcfdfb;color:var(--ink);font-size:12px;font-weight:400;resize:vertical}input:focus,textarea:focus,select:focus{border-color:#89a992;box-shadow:0 0 0 3px #e7f0e8}input::placeholder,textarea::placeholder{color:#a0aaa3}.divider{height:1px;margin:20px 0;background:var(--line)}.deck-list{display:grid;gap:7px;margin-top:14px}.deck-select{display:flex;align-items:center;gap:9px;padding:11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);text-align:left;font-size:11px}.deck-select>span:last-child{margin-left:auto;color:var(--muted);font-size:10px}.deck-select.selected{border-color:#b7cdbb;background:#f7faf6}.item-form{margin-bottom:22px;padding-bottom:20px;border-bottom:1px solid var(--line)}.saved-list{display:grid;gap:8px}.saved-item{display:flex;align-items:flex-start;gap:10px;padding:11px 0;border-bottom:1px solid #edf0ec}.item-type{display:grid;width:27px;height:27px;flex:0 0 auto;place-items:center;border-radius:8px;font-size:11px;font-weight:700}.question-type{background:#f9eee5;color:#a77752}.card-type{background:#e7f1e9;color:#517d60}.saved-item div{display:flex;min-width:0;flex-direction:column;gap:5px}.saved-item strong{display:-webkit-box;overflow:hidden;color:var(--ink);font-size:11px;line-height:1.45;-webkit-box-orient:vertical;-webkit-line-clamp:2}.saved-item small{color:var(--muted);font-size:10px}.study-card{padding:18px;border:1px solid var(--line);border-radius:13px;background:#fbfcfa}.study-meta{display:flex;justify-content:space-between;color:#829087;font-size:9px;font-weight:700;letter-spacing:.07em}.study-card h3{margin:20px 0;color:var(--ink);font:600 18px/1.5 Manrope,sans-serif}.study-card textarea{margin-bottom:12px}.answer-box{margin:0 0 14px;padding:13px;border-radius:9px;background:#edf4ee;color:#3b5845;font-size:12px;line-height:1.6;white-space:pre-wrap}.answer-box p:last-child{margin-bottom:0}.grade-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}.grade-actions button{min-height:44px;border:0;border-radius:9px;font-size:11px;font-weight:700}.again{background:#f8eae5;color:#a95643}.good{background:#e3f0e6;color:#3f7450}.session-progress{margin:13px 0 0;color:var(--muted);text-align:center;font-size:10px}.error-item{display:flex;align-items:center;justify-content:space-between;gap:11px;padding:13px 0;border-bottom:1px solid var(--line)}.error-item>div{min-width:0}.error-item small,.error-item strong{display:block}.error-item small{margin-bottom:6px;color:#8a968e;font-size:9px;letter-spacing:.06em}.error-item strong{color:var(--ink);font-size:11px;line-height:1.4}.error-item p{margin:7px 0 0;color:var(--muted);font-size:10px;line-height:1.4}.error-item.resolved{opacity:.55}.resolve-button{min-height:35px;flex:0 0 auto;padding:0 10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:#587461;font-size:10px}.empty-state{display:flex;flex-direction:column;align-items:center;gap:8px;padding:32px 15px;text-align:center}.empty-state>span{display:grid;width:35px;height:35px;place-items:center;border-radius:50%;background:#e5f0e7;color:#60846a}.empty-state strong{font-size:12px}.empty-state small{max-width:290px;color:var(--muted);font-size:10px;line-height:1.5}.app-footer{display:flex;justify-content:space-between;gap:10px;padding:12px 0 18px;border-top:1px solid var(--line);color:#9aa59d;font-size:9px}.app-footer span:first-child{font-weight:700;letter-spacing:.1em}@media(max-width:520px){.app{padding:0 16px 14px}.app-header{padding-top:20px}.tab{padding:0 11px;font-size:11px}.tab.active:after{right:10px;left:10px}.panel{padding:16px}.stats-grid{gap:8px}.stat-card{min-height:115px;padding:11px}.stat-card>span:last-child{font-size:9px}.quick-actions{grid-template-columns:1fr}.welcome h2{font-size:28px}.form-row,.app-footer{flex-direction:column}}