:root{--bg:#f5f4ee;--paper:#fffefa;--ink:#263d34;--muted:#7c847c;--green:#285e4e;--green-soft:#e6eee5;--line:#e3e5db;--gold:#b4a15f;--answer-size:18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif;font-size:14px}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.48;cursor:not-allowed}a{color:inherit;text-decoration:none}button{color:inherit}:is(button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,label:focus-within){outline-offset:4px;outline:3px solid #8cba9f}input:not([type=checkbox]):not([type=radio]):not([type=file]),select{border:1px solid var(--line);color:var(--ink);background:#fffefa;border-radius:9px;min-width:0;padding:12px 14px}input::placeholder{color:#9aa196}input[type=checkbox],input[type=radio]{accent-color:var(--green);flex-shrink:0;width:17px;height:17px}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-weight:600}p{line-height:1.85}svg{flex-shrink:0}button{border:0}small{font-size:12px}strong{font-weight:600}.app-shell{min-height:100dvh}.sidebar{border-right:1px solid var(--line);z-index:20;background:#eeefe7;flex-direction:column;width:240px;padding:37px 24px 20px;display:flex;position:fixed;inset:0 auto 0 0}.brand{align-items:center;gap:11px;margin-bottom:55px;display:flex}.brand strong{letter-spacing:1.5px;align-items:center;gap:9px;font-size:23px;display:flex}.brand strong span{letter-spacing:.5px;border-left:1px solid #bcc6b9;padding-left:9px;font-size:10px;font-weight:400}.brand small{color:var(--muted);letter-spacing:1px;margin-top:6px;font-size:10px;display:block}.nav-label{color:#92988b;letter-spacing:1.6px;margin:0 12px 17px;font-size:10px}.navigation{flex-direction:column;gap:8px;display:flex}.nav-button{text-align:left;color:#778274;background:0 0;border-radius:9px;align-items:center;gap:13px;width:100%;padding:15px 16px;font-size:13px;transition:background .16s;display:flex}.nav-button:hover{background:#e4e8dc}.nav-button.active{background:var(--green);color:#fffdf4;box-shadow:0 4px 9px #274b3910}.nav-arrow{opacity:.7;margin-left:auto}.sidebar-note{color:#9aab8b;margin:70px 10px auto}.sidebar-note p{color:#818e77;margin:16px 0;font-size:12px;line-height:2}.sidebar-note>span{letter-spacing:1.3px;color:#9aa391;font-size:8px}.sidebar-user{text-align:left;background:0 0;border-top:1px solid #dce1d2;align-items:center;gap:11px;width:100%;margin-top:50px;padding:22px 0 0;display:flex}.sidebar-user>span:nth-child(2){flex:1;min-width:0}.sidebar-user strong{text-overflow:ellipsis;white-space:nowrap;max-width:110px;font-size:12px;display:block;overflow:hidden}.sidebar-user small{color:var(--muted);margin-top:4px;font-size:10px;display:block}.avatar{color:#60704c;background:#dce4d2;border:1px solid #cfdac3;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:37px;height:37px;font-size:14px;display:flex}.avatar.small{width:33px;height:33px;font-size:12px}.workspace{margin-left:240px}.topbar{border-bottom:1px solid #e7e9e0;justify-content:space-between;align-items:center;height:83px;padding:0 54px;display:flex}.breadcrumb{color:#687567;font-size:11px}.breadcrumb>span{color:#b9c0b2;margin:0 13px}.connection{color:#7b8776;align-items:center;gap:7px;font-size:11px;display:flex}.status-dot{background:#799d79;border-radius:50%;width:6px;height:6px;box-shadow:0 0 0 3px #e8ede3}.status-dot.amber{background:#b39355;box-shadow:0 0 0 3px #eee8d8}.main-content{max-width:930px;margin:0 auto;padding:47px 56px 34px}.page-heading{justify-content:space-between;align-items:center;margin-bottom:28px;display:flex}.eyebrow{letter-spacing:1.4px;color:#829079;margin-bottom:13px;font-size:10px}.page-heading h1{letter-spacing:.2px;margin:0 0 11px;font-size:30px;line-height:1.5}.heading-dot{color:#a6b491}.page-heading p{color:#85907f;letter-spacing:.2px;margin-bottom:0;font-size:12px}.study-summary{border:1px solid var(--line);color:#74816e;background:#fbfbf6;border-radius:10px;align-items:center;gap:23px;padding:16px 21px;font-size:11px;display:flex}.study-summary>div:first-child{white-space:nowrap;align-items:center;gap:10px;display:flex}.mini-icon{color:#7d9373;align-items:center;display:flex}.study-summary strong{color:var(--ink);margin-left:12px;font-size:17px;font-weight:500}.study-summary small{color:#a0a792;font-size:11px}.summary-divider{background:var(--line);width:1px;height:26px}.summary-progress{flex:1;align-items:center;gap:23px;display:flex}.summary-progress>span{white-space:nowrap}.progress-line{background:#e7eadf;border-radius:4px;flex:1;height:4px;overflow:hidden}.progress-line i{background:#7d9b6c;border-radius:4px;height:100%;display:block}.progress-percent{color:#909a85;font-size:10px}.deck-toolbar{color:#65745e;justify-content:space-between;align-items:center;margin:32px 2px 17px;font-size:12px;display:flex}.deck-toolbar>span:first-child{align-items:center;gap:9px;display:flex}.deck-toolbar small{color:#9aa28f;border-left:1px solid #d8decd;margin-left:4px;padding-left:13px;font-size:10px}.deck-toolbar select{background:0 0;max-width:160px;padding:6px 8px;font-size:11px}.subtle{color:#9aa18f;font-size:10px}.empty-card-stack{margin-bottom:33px;position:relative}.stack-sheet{background:#f5f6ed;border:1px solid #dfe3d4;border-radius:15px;position:absolute;inset:0}.sheet-back{background:#eff1e5;left:11px;right:11px;transform:translateY(15px)rotate(-1.4deg)}.sheet-mid{background:#fafbf3;left:5px;right:5px;transform:translateY(7px)rotate(.8deg)}.empty-card,.flashcard{background:var(--paper);border:1px solid #dfe4d6;border-radius:14px;position:relative;overflow:hidden;box-shadow:0 5px 20px #45503804}.empty-card{text-align:center;min-height:423px;padding:24px 30px 0}.card-top{color:#a4aa98;text-align:left;justify-content:space-between;align-items:center;gap:15px;font-size:10px;display:flex}.pill{color:#7d8a6b;text-overflow:ellipsis;white-space:nowrap;background:#f0f2e7;border-radius:5px;max-width:70%;padding:5px 10px;font-size:10px;font-weight:400;display:inline-flex;overflow:hidden}.empty-illustration{justify-content:center;align-items:center;width:170px;height:120px;margin:23px auto 13px;display:flex;position:relative}.empty-illustration:before{content:"";background:#f2f4e9;border-radius:50%;width:112px;height:112px;position:absolute}.illustration-sheet{color:#9aac83;z-index:1;background:#fffef5;border:1px solid #bdc9a7;border-radius:9px;flex-direction:column;justify-content:center;align-items:center;gap:8px;width:76px;height:91px;display:flex;transform:rotate(-8deg);box-shadow:5px 6px #e5ebd9}.illustration-sheet i{background:#d6dec7;width:32px;height:2px}.illustration-sheet i:last-child{align-self:flex-start;width:22px;margin-left:22px}.illustration-badge{color:#7a9060;z-index:2;background:#e1e9d3;border:3px solid #fffef7;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;display:flex;position:absolute;bottom:9px;right:31px}.floating-dot{background:#b5be9b;border-radius:50%;width:5px;height:5px;position:absolute}.dot-one{top:12px;right:17px}.dot-two{background:#d3d8b8;width:4px;height:4px;bottom:19px;left:21px}.empty-card h2{letter-spacing:.8px;margin-bottom:13px;font-size:20px}.empty-card>p{color:#8c9681;margin-bottom:22px;font-size:12px;line-height:1.9}.primary,.secondary{border-radius:7px;justify-content:center;align-items:center;gap:10px;min-height:43px;padding:12px 18px;font-size:12px;font-weight:500;transition:background .15s,transform .15s;display:inline-flex}.primary{background:var(--green);color:#fffef3;border:1px solid var(--green)}.primary:hover:not(:disabled){background:#1f4f41;transform:translateY(-1px)}.primary svg:last-child{margin-left:7px}.secondary{color:#58724d;background:#fafbf5;border:1px solid #dce3d3}.secondary:hover:not(:disabled){background:#edf1e6}.secondary.compact{flex-shrink:0;min-height:36px;padding:9px 12px;font-size:11px}.text-button{color:#829371;background:0 0;justify-content:center;align-items:center;gap:6px;padding:5px 0;font-size:11px;display:inline-flex}.text-button:hover{color:var(--green)}.template-link{margin:11px 0 26px}.template-link .text-button{color:#9aa58d;font-size:10px}.card-footer{color:#abb29f;border-top:1px dashed #e5e9db;justify-content:space-between;align-items:center;gap:12px;padding:16px 0;font-size:9px;display:flex}.card-footer>span:first-child{align-items:center;gap:6px;display:flex}.study-footer{color:#9fa68f;justify-content:space-between;align-items:center;gap:18px;margin:24px 2px 0;font-size:10px;display:flex}.small-leaf{color:#a9b78c;margin-right:7px;font-size:14px}.study-footer .text-button{white-space:nowrap;font-size:10px}.flashcard{min-height:370px;padding:24px 30px 0}.question-content{background:0 0;flex-direction:column;justify-content:center;align-items:center;gap:15px;width:100%;min-height:290px;padding:30px 12px;display:flex}.question-mark{color:#abb996;font-family:Georgia,serif;font-size:28px;font-style:italic}.question-content h2{white-space:pre-wrap;overflow-wrap:anywhere;margin:0;font-size:23px;font-weight:600;line-height:1.8}.flip-hint{color:#9ca68f;align-items:center;gap:7px;margin-top:24px;font-size:11px;display:flex}.tiny-separator{color:#d2d8c5;margin:0 12px}.answer-content{padding:29px 3px 25px}.answer-content h2{white-space:pre-wrap;overflow-wrap:anywhere;margin-bottom:20px;font-size:18px;line-height:1.8}.answer-rule{background:#bdca9f;width:33px;height:3px;margin-bottom:24px}.answer-text{font-size:var(--answer-size);white-space:pre-wrap;overflow-wrap:anywhere;color:#4c5c45;line-height:1.95}.source-note{color:#96a084;margin:25px 0 0;font-size:11px}.below-card{text-align:center;margin-top:24px}.below-card>p{color:#738263;margin-bottom:14px;font-size:12px}.rating-buttons{grid-template-columns:repeat(5,1fr);gap:10px;display:grid}.rating{background:#fcfcf6;border:1px solid #dfe4d4;border-radius:9px;flex-direction:column;justify-content:center;align-items:center;gap:5px;min-height:67px;padding:11px 5px;display:flex}.rating strong{font-size:20px;font-weight:500}.rating span{font-size:10px}.rating-1{color:#aa7465;background:#faf1ea}.rating-2{color:#a38b55;background:#f8f4e6}.rating-3{color:#8b975e;background:#f0f3e3}.rating-4{color:#6e8a59;background:#eaf0df}.rating-5{color:#456b48;background:#e0eadb}.rating:hover:not(:disabled){border-color:currentColor;transform:translateY(-2px)}.below-card>small{color:#a0aa91;margin-top:14px;font-size:10px;display:block}.before-answer{color:#9fa990;justify-content:space-between;align-items:center;font-size:10px;display:flex}.panel{background:var(--paper);border:1px solid var(--line);border-radius:12px;margin:0 0 20px;padding:25px 27px}.panel h2{margin:0 0 23px;font-size:16px}.panel-title{justify-content:space-between;align-items:center;gap:10px;margin-bottom:18px;display:flex}.panel-title h2{margin:0}.metric-grid{grid-template-columns:repeat(3,1fr);gap:15px;margin:0 0 24px;display:grid}.metric{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:24px 20px}.metric>span{color:#819073;font-size:11px}.metric>strong{margin:15px 0;font-size:36px;font-weight:500;display:block}.metric>strong small{color:#9aaa8b;margin-left:3px;font-size:15px}.metric p{color:#a1ab92;margin:0;font-size:10px}.distribution{flex-direction:column;gap:20px;display:flex}.distribution-row{align-items:center;gap:20px;font-size:11px;display:flex}.distribution-row>span{color:#89937c;flex-shrink:0;width:86px}.distribution-row>div{background:#eef1e6;border-radius:6px;flex:1;height:7px;overflow:hidden}.distribution-row i{background:#9ab085;border-radius:6px;height:100%;display:block}.distribution-row>strong{text-align:right;color:#7f906d;width:30px}.history-list>div{border-bottom:1px solid #eef0e6;justify-content:space-between;align-items:center;gap:20px;padding:16px 0;display:flex}.history-list>div:last-child{border:0}.history-list>div>span:first-child{min-width:0}.history-list strong{white-space:nowrap;text-overflow:ellipsis;max-width:490px;font-size:12px;display:block;overflow:hidden}.history-list small{color:#9da68f;margin-top:7px;font-size:10px;display:block}.score-badge{white-space:nowrap;background:#ecf1e3;border-radius:5px;padding:5px 9px;font-size:11px}.small-empty{text-align:center;color:#acb598;padding:40px 10px}.small-empty>svg{color:#a1b08b;margin-bottom:17px}.small-empty h3{color:#677a59;margin-bottom:12px;font-size:17px}.small-empty p{color:#9ca68e;font-size:12px}.small-empty .secondary{margin-top:8px}.ranking-toolbar{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.segmented{background:#e9eddf;border-radius:8px;gap:4px;padding:4px;display:flex}.segmented button{color:#98a186;background:0 0;border-radius:5px;padding:9px 21px;font-size:11px}.segmented button.selected{color:#4f6a43;background:#fffef7;box-shadow:0 1px 4px #52673d10}.ranking-panel{padding:0 27px}.ranking-header{border-bottom:1px solid var(--line);color:#a0a98e;justify-content:space-between;padding:21px 0;font-size:10px;display:flex}.ranking-row{border-bottom:1px solid #edf0e5;align-items:center;gap:13px;padding:18px 3px;display:flex}.rank-number{color:#9aa986;text-align:center;width:22px;font-size:12px}.rank-1{color:#ad9654}.rank-2{color:#899a86}.rank-3{color:#b18a6b}.rank-name{flex:1}.rank-name strong{overflow-wrap:anywhere;font-size:12px;display:block}.rank-name small{color:#a0ab90;margin-top:5px;font-size:10px;display:block}.rank-name em{color:#75925f;background:#edf2e3;border-radius:4px;margin-left:6px;padding:2px 5px;font-size:9px;font-style:normal}.ranking-row>strong{color:#6f8559;white-space:nowrap;font-size:18px}.ranking-row>strong small{color:#a7b097;font-size:10px;font-weight:400}.ranking-row.is-me{background:#f4f7ec}.info-note{color:#9ba88a;align-items:flex-start;gap:11px;margin:22px 3px;display:flex}.info-note>svg{margin-top:3px}.info-note p{color:#96a184;margin:0;font-size:11px;line-height:1.9}.helper{color:#96a084;margin:17px 0 0;font-size:11px;line-height:1.9}.nickname-edit label{color:#849475;margin-bottom:9px;font-size:11px;display:block}.nickname-edit>div{gap:10px;display:flex}.nickname-edit input{flex:1}.setting-row{border-bottom:1px solid #e9ede1;justify-content:space-between;align-items:center;gap:20px;padding:18px 0;display:flex}.setting-row:last-child{border:0;padding-bottom:0}.setting-row:first-of-type{padding-top:0}.setting-row>span:first-child{min-width:0}.setting-row strong{font-size:12px;font-weight:500;display:block}.setting-row small{color:#a1ab92;overflow-wrap:anywhere;margin-top:7px;font-size:10px;line-height:1.7;display:block}.font-control{color:#758962;align-items:center;gap:15px;font-size:12px;display:flex}.font-control button{background:#edf2e4;border-radius:5px;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.file-button{cursor:pointer;position:relative}.file-button input,.upload-zone input,.restore-welcome input{opacity:0;cursor:pointer;width:100%;position:absolute;inset:0}.settings-footnote{text-align:center;color:#acb39d;margin-top:30px;font-size:10px;line-height:2.1}.back-link{color:#8b9b79;background:0 0;align-items:center;gap:4px;margin:0 0 20px;padding:0;font-size:11px;display:flex}.icon-tile{color:#80966a;background:#edf2e3;border-radius:12px;justify-content:center;align-items:center;width:51px;height:51px;margin-bottom:22px;display:flex}.admin-unlock{padding:35px}.admin-unlock>p{color:#95a184;margin-bottom:22px;font-size:12px}.admin-unlock form{gap:10px;display:flex}.admin-unlock input{flex:1;width:100%}.admin-unlock>small{color:#acb69b;margin-top:18px;font-size:10px;display:block}.admin-status{color:#789765;justify-content:space-between;align-items:center;margin-bottom:17px;font-size:11px;display:flex}.admin-status>span{align-items:center;gap:7px;display:flex}.upload-zone{color:#9aae85;cursor:pointer;text-align:center;background:#f7f9f0;border:1px dashed #bccdab;border-radius:9px;flex-direction:column;align-items:center;gap:13px;padding:35px 20px;display:flex;position:relative}.upload-zone strong{color:#768d60;overflow-wrap:anywhere;max-width:100%;font-size:14px;font-weight:500}.upload-zone>span:not(.secondary){color:#9dac8b;font-size:10px}.upload-zone .secondary{margin-top:5px;font-size:11px}.upload-zone.disabled{opacity:.5;pointer-events:none}.validation-errors{color:#9a6f55;background:#fff9f2;border-color:#e4cbbd}.validation-errors p,.validation-errors li{font-size:11px;line-height:1.8}.validation-errors ul{margin-bottom:0;padding-left:20px}.valid-label{color:#84a46c;align-items:center;gap:4px;font-size:10px;display:flex}.import-preview{border:1px solid var(--line);border-radius:8px;overflow:hidden}.import-preview details{border-bottom:1px solid var(--line);padding:13px}.import-preview details:last-child{border-bottom:0}.import-preview summary{cursor:pointer;overflow-wrap:anywhere;font-size:12px;line-height:1.8}.import-preview summary .pill{vertical-align:middle;max-width:120px;margin:0 8px}.import-preview p{white-space:pre-wrap;overflow-wrap:anywhere;color:#82956b;padding:15px 10px 0;font-size:12px}.import-preview small{color:#aab599;overflow-wrap:anywhere;font-size:9px}.import-mode{border:0;margin:25px 0;padding:0}.import-mode legend{margin-bottom:14px;font-size:12px;font-weight:500}.import-mode>label{cursor:pointer;align-items:flex-start;gap:10px;margin:15px 0;display:flex}.import-mode strong{font-size:12px;font-weight:500;display:block}.import-mode small{color:#a2ae91;margin-top:5px;font-size:10px;display:block}.confirm-check{color:#8d9e7b;align-items:flex-start;gap:9px;margin-bottom:20px;font-size:11px;line-height:1.8;display:flex}.confirm-check input{margin:1px 0 0}.full-width{width:100%}.modal-backdrop{-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px);z-index:80;background:#e1e7d9b8;justify-content:center;align-items:center;padding:22px;display:flex;position:fixed;inset:0}.welcome-modal,.dialog{background:#fffef7;border:1px solid #dde4d1;border-radius:18px;width:440px;max-width:100%;padding:37px;box-shadow:0 20px 90px #2c482d16}.welcome-modal>img{margin-bottom:25px}.welcome-modal .eyebrow{font-size:9px}.welcome-modal h2{margin-bottom:8px;font-size:22px;line-height:1.6}.welcome-modal>p{color:#97a386;font-size:12px}.welcome-modal form{margin-top:27px}.welcome-modal label:not(.restore-welcome){color:#7d9168;margin-bottom:9px;font-size:11px;display:block}.welcome-modal input:not([type=file]){width:100%;margin-bottom:13px;padding:14px;font-size:13px}.welcome-modal>small{color:#a0ad90;justify-content:center;align-items:center;gap:6px;margin-top:22px;font-size:10px;display:flex}.restore-welcome{text-align:center;color:#a3b091;cursor:pointer;margin-top:18px;font-size:10px;display:block;position:relative}.dialog{position:relative}.dialog h2{font-size:20px;line-height:1.6}.dialog>p{color:#8f9e7c;font-size:12px}.dialog-close{color:#a2b092;background:0 0;position:absolute;top:17px;right:17px}.dialog-actions{justify-content:flex-end;gap:10px;margin-top:26px;display:flex}.backup-modal{z-index:90}.toast{color:#fffef5;z-index:100;background:#2c4e3f;border-radius:9px;align-items:center;gap:20px;width:max-content;max-width:calc(100% - 36px);padding:14px 19px;font-size:12px;line-height:1.7;display:flex;position:fixed;bottom:28px;left:calc(50% + 120px);transform:translate(-50%);box-shadow:0 6px 26px #26403422}.toast button{color:inherit;background:0 0;padding:0;display:flex}.loading-screen{color:#96a580;flex-direction:column;justify-content:center;align-items:center;min-height:400px;font-size:12px;display:flex}.spinner{border:2px solid #dee6d1;border-top-color:#7d9b64;border-radius:50%;width:23px;height:23px;margin-bottom:13px;animation:1s linear infinite spin;display:inline-block}.spin{animation:1.5s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.mobile-nav,.mobile-brand{display:none}@media (min-width:1500px){.main-content{padding-top:65px}.page-heading h1{font-size:33px}.empty-card{min-height:455px}.empty-illustration{margin-top:34px;margin-bottom:19px}}@media (max-width:1100px){.sidebar{width:210px;padding-left:18px;padding-right:18px}.workspace{margin-left:210px}.brand strong{font-size:21px}.brand strong span{font-size:9px}.main-content{padding:35px 32px}.topbar{padding:0 32px}.study-summary{gap:14px;padding:16px}.summary-progress{gap:12px}.toast{left:calc(50% + 105px)}}@media (max-width:760px){.sidebar{display:none}.workspace{margin-left:0}.topbar{height:65px;padding:0 22px;padding-top:env(safe-area-inset-top);box-sizing:content-box}.breadcrumb{display:none}.mobile-brand{letter-spacing:2px;align-items:center;gap:9px;font-size:19px;font-weight:600;display:flex}.connection{font-size:10px}.main-content{max-width:570px;padding:29px 20px 110px}.page-heading{margin-bottom:23px}.eyebrow{letter-spacing:1px;margin-bottom:10px;font-size:9px}.page-heading h1{margin-bottom:10px;font-size:24px}.page-heading p{font-size:11px}.study-summary{gap:12px;padding:15px 14px;font-size:10px}.study-summary strong{margin-left:7px;font-size:17px}.study-summary small{font-size:10px}.summary-progress{gap:8px}.progress-percent{display:none}.summary-divider{height:22px}.mini-icon{display:none}.deck-toolbar{margin-top:28px;font-size:11px}.deck-toolbar small{margin-left:1px;padding-left:9px;font-size:9px}.deck-toolbar select{max-width:130px}.empty-card{min-height:400px;padding:20px 20px 0}.empty-card h2{letter-spacing:.2px;font-size:18px}.empty-card>p{margin-bottom:20px;font-size:11px}.empty-illustration{margin:20px auto 12px}.card-top{font-size:9px}.pill{padding:5px 8px;font-size:9px}.card-footer{gap:8px;padding:16px 0;font-size:8px}.card-footer svg{width:12px}.empty-card-stack{margin-bottom:30px}.study-footer{text-align:center;margin-top:32px;font-size:9px;display:block}.study-footer .text-button{display:none}.mobile-nav{z-index:30;padding:9px 14px calc(9px + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#fafbf4ed;border-top:1px solid #e0e6d6;grid-template-columns:repeat(4,1fr);display:grid;position:fixed;bottom:0;left:0;right:0}.mobile-nav button{color:#a3ad94;background:0 0;flex-direction:column;align-items:center;gap:5px;padding:7px 0;font-size:10px;display:flex}.mobile-nav button.active{color:var(--green)}.mobile-nav button.active svg{stroke-width:2.4px}.toast{bottom:calc(91px + env(safe-area-inset-bottom));gap:12px;max-width:calc(100% - 30px);padding:13px 16px;font-size:11px;left:50%}.flashcard{min-height:335px;padding:20px 20px 0}.question-content{min-height:265px;padding:23px 0}.question-content h2{font-size:21px}.answer-content{padding:25px 0}.answer-content h2{font-size:17px}.answer-text{line-height:1.9}.rating-buttons{gap:7px}.rating{border-radius:8px;min-height:63px}.rating strong{font-size:19px}.rating span,.below-card>small{font-size:9px}.metric-grid{gap:8px;margin-bottom:19px}.metric{padding:18px 11px}.metric>span{font-size:10px}.metric>strong{margin:13px 0;font-size:30px}.metric>strong small{font-size:11px}.metric p{font-size:9px;line-height:1.8}.panel{border-radius:11px;margin-bottom:17px;padding:21px 19px}.panel h2{margin-bottom:22px;font-size:15px}.panel-title h2{margin:0}.distribution-row{gap:12px}.distribution-row>span{width:77px;font-size:10px}.history-list strong{max-width:235px;font-size:11px}.ranking-panel{padding:0 18px}.ranking-row{gap:9px}.rank-name strong{font-size:11px}.rank-name small{font-size:9px}.rank-number{width:18px}.ranking-row>strong{font-size:16px}.ranking-header{font-size:9px}.segmented button{padding:9px 17px;font-size:10px}.setting-row{gap:12px}.setting-row strong{font-size:11px}.setting-row small{font-size:9px;line-height:1.8}.secondary.compact{padding:9px 10px;font-size:10px}.helper{font-size:10px}.font-control{gap:10px}.nickname-edit input{width:100%;font-size:13px}.nickname-edit .secondary{min-width:65px}.admin-unlock{padding:25px 21px}.admin-unlock form{flex-direction:column}.admin-unlock p{font-size:11px}.admin-unlock small{font-size:9px;line-height:1.8}.admin-status{font-size:10px}.upload-zone{padding:30px 12px}.upload-zone strong{font-size:13px}.upload-zone>span:not(.secondary){font-size:9px}.panel-title .text-button{font-size:10px}.import-mode small{font-size:9px;line-height:1.7}.import-preview summary{font-size:11px}.confirm-check{font-size:10px}.welcome-modal,.dialog{border-radius:15px;padding:30px 25px}.welcome-modal h2{font-size:21px}.welcome-modal>p{font-size:11px}.welcome-modal>small,.welcome-modal .eyebrow{font-size:9px}.welcome-modal label:not(.restore-welcome){font-size:10px}.desktop-only{display:none}}@media (max-width:360px){.main-content{padding-left:15px;padding-right:15px}.page-heading h1{font-size:21px}.empty-card{padding-left:16px;padding-right:16px}.empty-card h2{font-size:16px}.study-summary{gap:9px;padding:13px 11px}.summary-progress .progress-line{display:none}.metric>span{font-size:9px}.metric>strong{font-size:27px}.empty-card>p{font-size:10px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.scope-picker{border:1px solid var(--line);background:var(--paper);border-radius:12px;grid-template-columns:1fr 1fr;gap:12px 16px;margin-bottom:20px;padding:18px 20px;display:grid}.scope-picker label{color:#66795a;flex-direction:column;gap:8px;min-width:0;font-size:12px;display:flex}.scope-picker select{color:#385439;background:#f8faf2;border:1px solid #dce3cf;border-radius:7px;width:100%;min-width:0;min-height:44px;padding:8px;font-size:14px}.scope-picker p{color:#738263;overflow-wrap:anywhere;grid-column:1/-1;margin:0;font-size:12px;line-height:1.7}.deck-toolbar>span{overflow-wrap:anywhere;min-width:0}.deck-toolbar small{overflow-wrap:anywhere}.card-footer>span:last-child{overflow-wrap:anywhere;text-align:right;min-width:0}@media (max-width:420px){.scope-picker{gap:10px;padding:15px}.scope-picker select{font-size:13px}}