:root{--ink:#142d32;--muted:#647a7d;--green:#176c5b;--green-dark:#105145;--green-soft:#e9f3ef;--cream:#f7f8f4;--line:#dfe8e3;--white:#fff;--danger:#a13d3d;--shadow:0 24px 70px #143d3817}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);background:var(--cream);-webkit-font-smoothing:antialiased;margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible{outline-offset:3px;outline:3px solid #398f794d}.brand{letter-spacing:-.03em;align-items:center;gap:11px;font-size:18px;text-decoration:none;display:inline-flex}.brand b{color:var(--green)}.brand-mark{background:var(--green);color:#fff;border-radius:10px;place-items:center;width:34px;height:34px;font-family:Georgia,serif;font-size:21px;font-weight:700;display:grid}.brand-light{color:#fff}.brand-light b{color:#a9d6c8}.brand-light .brand-mark{background:#ffffff24;border:1px solid #fff3}.eyebrow{color:var(--green);letter-spacing:.16em;text-transform:uppercase;font-size:11px;font-weight:800;display:block}.eyebrow-light{color:#a9d6c8}.button{cursor:pointer;border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:9px;min-height:44px;padding:11px 18px;font-size:14px;font-weight:700;text-decoration:none;transition:transform .18s,background .18s,border-color .18s;display:inline-flex}.button:hover{transform:translateY(-1px)}.button-primary{background:var(--green);color:#fff;box-shadow:0 8px 22px #176c5b29}.button-primary:hover{background:var(--green-dark)}.button-secondary{color:var(--ink);border-color:var(--line);background:#fff}.button-full{width:100%}.button:disabled{opacity:.6;cursor:wait;transform:none}.site-shell{background:radial-gradient(circle at 83% 13%, #bcdecf59, transparent 27%), var(--cream);min-height:100vh;overflow:hidden}.site-nav{justify-content:space-between;align-items:center;gap:24px;max-width:1180px;min-height:84px;margin:auto;padding:20px 28px;display:flex}.nav-actions{align-items:center;gap:12px;display:flex}.nav-login{padding:10px 14px;font-size:14px;font-weight:700;text-decoration:none}.hero-home{grid-template-columns:1.04fr .96fr;align-items:center;gap:76px;max-width:1180px;margin:auto;padding:72px 28px 90px;display:grid}.hero-home h1{letter-spacing:-.045em;max-width:650px;margin:18px 0 22px;font-family:Georgia,Times New Roman,serif;font-size:clamp(46px,5.4vw,72px);font-weight:500;line-height:1.04}.hero-home h1 em{color:var(--green);font-weight:500}.hero-copy>p{max-width:570px;color:var(--muted);margin:0;font-size:17px;line-height:1.75}.hero-actions{flex-wrap:wrap;gap:12px;margin-top:32px;display:flex}.hero-proof{border-top:1px solid var(--line);gap:34px;margin-top:44px;padding-top:26px;display:flex}.proof-item strong{letter-spacing:-.04em;font-size:22px;display:block}.proof-item span{color:var(--muted);margin-top:3px;font-size:12px;display:block}.exam-preview{box-shadow:var(--shadow);background:#ffffff9e;border:1px solid #fffc;border-radius:26px;padding:22px;position:relative;transform:rotate(1.5deg)}.exam-preview:before{content:"";z-index:-1;background:#dcebe3;border-radius:26px;position:absolute;inset:-14px 22px 14px -14px;transform:rotate(-3deg)}.preview-top{justify-content:space-between;align-items:center;margin-bottom:28px;display:flex}.preview-top span{letter-spacing:.1em;color:var(--muted);font-size:11px;font-weight:800}.preview-timer{background:var(--green-soft);border-radius:8px;padding:6px 10px;color:var(--green)!important;letter-spacing:0!important}.preview-question{border:1px solid var(--line);background:#fff;border-radius:16px;padding:24px}.preview-question small{color:var(--green);font-weight:800}.preview-question h2{margin:12px 0 20px;font-size:18px;font-weight:650;line-height:1.5}.preview-option{border:1px solid var(--line);color:#536d70;border-radius:9px;align-items:center;gap:10px;margin:8px 0;padding:10px 12px;font-size:12px;display:flex}.preview-option i{background:#f0f5f2;border-radius:6px;place-items:center;width:23px;height:23px;font-style:normal;font-weight:800;display:grid}.preview-option.correct{color:var(--green);background:#eff8f3;border-color:#a9d3c2}.preview-bottom{color:var(--muted);justify-content:space-between;align-items:center;margin-top:18px;font-size:11px;display:flex}.preview-dots{gap:4px;display:flex}.preview-dots i{background:#d9e4df;border-radius:10px;width:18px;height:5px}.preview-dots i:nth-child(-n+3){background:#69a693}.feature-strip{color:#fff;background:#123d38}.feature-inner{grid-template-columns:repeat(3,1fr);gap:50px;max-width:1180px;margin:auto;padding:42px 28px;display:grid}.feature-item{gap:15px;display:flex}.feature-number{color:#8bc4b3;font-family:Georgia,serif;font-size:23px}.feature-item h3{margin:0 0 6px;font-size:15px}.feature-item p{color:#b9d1ca;margin:0;font-size:13px;line-height:1.6}.site-footer{max-width:1180px;color:var(--muted);justify-content:space-between;gap:20px;margin:auto;padding:28px;font-size:12px;display:flex}.auth-page{background:#fff;grid-template-columns:minmax(340px,.83fr) minmax(520px,1.17fr);min-height:100vh;display:grid}.auth-aside{color:#fff;background:radial-gradient(circle at 90% 80%,#7cb9a333,#0000 34%),#123d38;flex-direction:column;height:100vh;min-height:650px;padding:42px 48px;display:flex;position:sticky;top:0;overflow:hidden}.auth-aside:after{content:"Q";color:#ffffff06;pointer-events:none;font-family:Georgia,serif;font-size:520px;line-height:1;position:absolute;bottom:-150px;right:-55px}.auth-aside-copy{z-index:1;max-width:470px;margin:auto 0;position:relative}.auth-aside-copy h1{letter-spacing:-.035em;margin:18px 0 24px;font-family:Georgia,serif;font-size:clamp(38px,4vw,56px);font-weight:400;line-height:1.13}.auth-aside-copy>p{color:#bdd3cd;font-size:15px;line-height:1.75}.auth-quote{z-index:1;color:#a9c5bc;border-top:1px solid #ffffff24;padding-top:22px;font-family:Georgia,serif;font-size:13px;font-style:italic;line-height:1.6;position:relative}.aside-checklist{color:#d7e6e1;gap:11px;margin:28px 0 0;padding:0;font-size:13px;list-style:none;display:grid}.aside-checklist li:before{content:"✓";color:#a9d6c8;background:#ffffff1a;border-radius:50%;place-items:center;width:20px;height:20px;margin-right:10px;display:inline-grid}.auth-panel{background:radial-gradient(circle at 100% 0,#f1f7f3,#0000 32%),#fff;flex-direction:column;justify-content:center;align-items:center;padding:48px 40px 24px;display:flex;position:relative}.signup-panel{justify-content:flex-start}.auth-card{width:100%;max-width:410px;margin:auto}.auth-card-wide{max-width:590px;margin:40px auto}.auth-card h2{letter-spacing:-.04em;margin:10px 0 8px;font-size:30px;line-height:1.2}.auth-intro{color:var(--muted);margin:0 0 30px;font-size:14px;line-height:1.6}.auth-form{gap:19px;display:grid}.field{min-width:0}.field label{color:#355052;margin:0 0 7px;font-size:12px;font-weight:750;display:block}.field label span{color:var(--danger)}.field input{width:100%;height:46px;color:var(--ink);background:#fff;border:1px solid #d8e3de;border-radius:9px;padding:11px 13px;font-size:14px;transition:border .18s,box-shadow .18s}.field input::placeholder{color:#9aa9a6}.field input:focus{border-color:#65a795;outline:none;box-shadow:0 0 0 4px #3f8f7817}.field small{color:var(--muted);margin-top:6px;font-size:11px;display:block}.field-grid{grid-template-columns:1fr 1fr;gap:18px;display:grid}.field-wide{grid-column:1/-1}.password-wrap{position:relative}.password-wrap input{padding-right:60px}.password-toggle{color:var(--green);cursor:pointer;background:0 0;border:0;font-size:11px;font-weight:800;position:absolute;top:50%;right:9px;transform:translateY(-50%)}.alert{border-radius:9px;padding:12px 14px;font-size:13px;line-height:1.5}.alert-error{color:#873c3c;background:#fff2f0;border:1px solid #f1d5d0}.auth-switch{text-align:center;color:var(--muted);margin:0;font-size:13px}.auth-switch a{color:var(--green);font-weight:800;text-decoration:none}.auth-footer{color:#879792;text-align:center;margin:30px 0 0;font-size:11px}.auth-mobile-brand{display:none}.form-note{color:var(--muted);margin:-3px 0 0;font-size:11px;line-height:1.5}.signup-success{text-align:center;background:#f4faf7;border:1px solid #d7e9e0;border-radius:16px;padding:28px}.success-icon{background:var(--green);color:#fff;border-radius:50%;place-items:center;width:48px;height:48px;margin:0 auto 15px;font-size:23px;display:grid}.signup-success h2{font-size:23px}.signup-success p{color:var(--muted);font-size:14px;line-height:1.65}.signup-success .button{margin-top:12px}.text-button{color:var(--green);cursor:pointer;background:0 0;border:0;margin-top:18px;font-size:12px;text-decoration:underline}.admin-shell{background:#f5f7f4;min-height:100vh}.admin-nav{color:#fff;background:#123d38}.admin-nav-inner{justify-content:space-between;align-items:center;gap:20px;max-width:1240px;min-height:72px;margin:auto;padding:15px 28px;display:flex}.admin-nav-actions{align-items:center;gap:12px;display:flex}.admin-nav-actions a,.admin-nav-actions button{color:#d3e3de;cursor:pointer;background:0 0;border:0;font-size:12px;font-weight:700;text-decoration:none}.admin-nav-actions a{border:1px solid #ffffff2b;border-radius:8px;padding:9px 12px}.admin-main{max-width:1240px;margin:auto;padding:42px 28px 70px}.admin-heading{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:30px;display:flex}.admin-heading h1{letter-spacing:-.04em;margin:7px 0 5px;font-size:34px}.admin-heading p{color:var(--muted);margin:0;font-size:13px}.admin-date{color:var(--muted);font-size:12px}.stats-grid{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px;display:grid}.stat-card{border:1px solid var(--line);background:#fff;border-radius:14px;padding:22px}.stat-card-top{color:var(--muted);justify-content:space-between;align-items:center;font-size:12px;display:flex}.stat-icon{background:var(--green-soft);width:30px;height:30px;color:var(--green);border-radius:8px;place-items:center;display:grid}.stat-card strong{letter-spacing:-.04em;margin-top:13px;font-size:30px;display:block}.stat-card small{color:var(--muted);font-size:11px}.admin-card{border:1px solid var(--line);background:#fff;border-radius:14px;overflow:hidden}.admin-card-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;padding:20px 22px;display:flex}.admin-card-header h2{margin:0 0 4px;font-size:17px}.admin-card-header p{color:var(--muted);margin:0;font-size:11px}.search-input{border:1px solid var(--line);width:260px;height:40px;color:var(--ink);background:#fafcfb;border-radius:9px;padding:10px 12px;font-size:12px}.table-wrap{overflow-x:auto}.admin-table{border-collapse:collapse;width:100%;font-size:12px}.admin-table th{color:#71827e;letter-spacing:.08em;text-align:left;text-transform:uppercase;white-space:nowrap;background:#fafbf9;padding:12px 18px;font-size:10px}.admin-table td{vertical-align:middle;border-top:1px solid #edf1ee;padding:16px 18px}.student-name{align-items:center;gap:10px;min-width:190px;display:flex}.student-avatar{width:34px;height:34px;color:var(--green);background:#e8f2ed;border-radius:50%;flex:none;place-items:center;font-weight:800;display:grid}.student-name strong{font-size:12px;display:block}.student-name small,.table-sub{color:var(--muted);margin-top:2px;font-size:10px;display:block}.badge{color:var(--green);white-space:nowrap;background:#edf6f1;border-radius:99px;align-items:center;padding:4px 8px;font-size:10px;font-weight:800;display:inline-flex}.badge-inactive{color:#8d5c5c;background:#f3efef}.badge-admin{color:#596692;background:#eef0f8;margin-left:5px}.table-actions{gap:7px;display:flex}.table-button{border:1px solid var(--line);color:var(--ink);cursor:pointer;white-space:nowrap;background:#fff;border-radius:7px;padding:7px 9px;font-size:10px;font-weight:700}.table-button:hover{border-color:#93b9ab}.table-button:disabled{opacity:.45;cursor:not-allowed}.table-empty{text-align:center;color:var(--muted);padding:45px!important}.table-error{margin:14px 18px}.admin-note{color:var(--muted);margin:18px 0 0;font-size:11px;line-height:1.6}@media (max-width:980px){.hero-home{grid-template-columns:1fr;gap:65px;padding-top:55px}.hero-copy{max-width:700px}.exam-preview{width:100%;max-width:580px;margin:auto}.auth-page{grid-template-columns:minmax(280px,.65fr) minmax(460px,1.35fr)}.auth-aside{padding:34px}.stats-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:760px){.site-nav{padding:18px 20px}.nav-login{display:none}.hero-home{padding:48px 20px 70px}.hero-home h1{font-size:46px}.hero-copy>p{font-size:15px}.hero-proof{gap:24px}.feature-inner{grid-template-columns:1fr;gap:25px;padding:35px 20px}.site-footer{flex-direction:column;padding:24px 20px}.auth-page{display:block}.auth-aside{display:none}.auth-panel{justify-content:flex-start;min-height:100vh;padding:26px 20px}.auth-mobile-brand{width:100%;max-width:590px;margin-bottom:45px;display:block}.auth-card,.auth-card-wide{margin:0 auto}.auth-footer{margin-top:auto;padding-top:35px}.admin-main{padding:30px 18px 55px}.admin-nav-inner{padding:14px 18px}.admin-heading,.admin-card-header{flex-direction:column;align-items:flex-start}.search-input{width:100%}}@media (max-width:520px){.brand{font-size:16px}.nav-actions .button{padding:9px 12px;font-size:12px}.hero-home h1{font-size:40px}.hero-actions .button{width:100%}.hero-proof{justify-content:space-between;gap:12px}.proof-item strong{font-size:19px}.exam-preview{padding:12px}.preview-question{padding:17px}.preview-question h2{font-size:15px}.field-grid{grid-template-columns:1fr}.field-wide{grid-column:auto}.auth-card h2{font-size:27px}.stats-grid{gap:10px}.stat-card{padding:16px}.stat-card strong{font-size:26px}.admin-nav-actions a{display:none}.admin-heading h1{font-size:29px}}.brand-logo{border:1px solid var(--line);background:#fff;border-radius:9px;align-items:center;height:46px;padding:5px 10px;display:inline-flex}.brand-logo img{width:auto;height:36px;display:block}.brand-light .brand-logo{border-color:#ffffff40}.theme-toggle{border:1px solid var(--line);background:var(--white);min-height:36px;color:var(--ink);cursor:pointer;border-radius:9px;align-items:center;gap:6px;padding:7px 11px;font-size:12px;font-weight:750;display:inline-flex}.theme-toggle:hover{border-color:#93b9ab}.theme-on-dark{color:#d3e3de!important;background:0 0!important;border:1px solid #ffffff2b!important}.auth-theme{z-index:2;position:absolute;top:18px;right:20px}.nav-button{color:var(--ink);cursor:pointer;background:0 0;border:0}.hero-note{color:var(--muted);margin:14px 0 0!important;font-size:13px!important}.hero-note a{color:var(--green);font-weight:750}.practice-main{max-width:860px;margin:0 auto;padding:24px 24px 80px}.quiz-card{border:1px solid var(--line);background:var(--white);box-shadow:var(--shadow);border-radius:20px;padding:30px}.quiz-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.quiz-count{color:var(--muted);font-size:12px;font-weight:700}.quiz-progress{background:var(--green-soft);border-radius:9px;height:6px;margin:16px 0 22px;overflow:hidden}.quiz-progress i{background:var(--green);height:100%;transition:width .3s;display:block}.quiz-stem{letter-spacing:-.01em;margin:0 0 22px;font-size:20px;font-weight:650;line-height:1.5}.quiz-options{gap:10px;display:grid}.quiz-option{border:1px solid var(--line);background:var(--white);width:100%;color:var(--ink);text-align:left;cursor:pointer;border-radius:11px;align-items:center;gap:12px;padding:13px 14px;font-size:14px;display:flex}.quiz-option i{background:var(--green-soft);width:28px;height:28px;color:var(--green);border-radius:7px;flex:none;place-items:center;font-style:normal;font-weight:800;display:grid}.quiz-option:hover:not(:disabled){border-color:#93b9ab}.quiz-option.chosen{border-color:var(--green);box-shadow:0 0 0 3px #176c5b1f}.quiz-option.right{background:#eaf7f0;border-color:#3d9a74}.quiz-option.wrong{background:#fbefef;border-color:#d48a8a}.quiz-option:disabled{cursor:default}.quiz-tf{gap:10px;display:grid}.quiz-tf-row{border:1px solid var(--line);border-radius:11px;justify-content:space-between;align-items:center;gap:14px;padding:12px 14px;font-size:14px;display:flex}.quiz-tf-row>div{flex:none;align-items:center;gap:6px;display:flex}.quiz-tf-row button{border:1px solid var(--line);background:var(--white);color:var(--ink);cursor:pointer;border-radius:8px;padding:7px 12px;font-size:12px;font-weight:750}.quiz-tf-row button.on{background:var(--green);border-color:var(--green);color:#fff}.quiz-tf-row small{color:var(--muted);margin-left:6px;font-size:11px}.quiz-tf-row.right{background:#eaf7f0;border-color:#3d9a74}.quiz-tf-row.wrong{background:#fbefef;border-color:#d48a8a}.quiz-explain{border-left:4px solid var(--green);background:var(--green-soft);border-radius:10px;margin-top:20px;padding:16px 18px}.quiz-explain p{color:var(--ink);margin:6px 0 0;font-size:14px;line-height:1.65}.quiz-actions{justify-content:space-between;align-items:center;margin-top:24px;display:flex}.quiz-score{color:var(--muted);font-size:13px;font-weight:700}.quiz-done h1{letter-spacing:-.03em;margin:10px 0 12px;font-family:Georgia,serif;font-size:36px;font-weight:500}.quiz-done p{color:var(--muted);font-size:15px;line-height:1.7}.upgrade-steps{color:var(--ink);gap:8px;margin:18px 0 24px;padding-left:20px;font-size:14px;line-height:1.6;display:grid}.admin-tools{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:12px;display:flex}.filter-tabs{border:1px solid var(--line);border-radius:9px;gap:4px;padding:3px;display:flex}.filter-tabs button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:7px;padding:6px 9px;font-size:11px;font-weight:750}.filter-tabs button.on{background:var(--green);color:#fff}.badge{margin:0 4px 3px 0}.badge-waiting{color:#9a6413;background:#fff5e6}.table-button-primary{background:var(--green);border-color:var(--green);color:#fff}a.table-button{align-items:center;text-decoration:none;display:inline-flex}.device-row>td{background:var(--green-soft);padding:0!important}.device-panel{padding:14px 18px 18px}.device-panel-head{justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;font-size:12px;display:flex}.device-panel-head select{border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:7px;padding:4px 8px}.device-table{border-collapse:collapse;background:var(--white);border-radius:10px;width:100%;font-size:11px;overflow:hidden}.device-table th{text-align:left;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;padding:8px 10px;font-size:10px}.device-table td{border-top:1px solid var(--line);white-space:nowrap;padding:9px 10px}.device-table tr.revoked td{opacity:.55}.setting-card{margin-bottom:20px}.setting-form{flex-wrap:wrap;align-items:center;gap:12px;padding:16px 22px;display:flex}.setting-form h2{margin:0 0 3px;font-size:15px}.setting-form p{color:var(--muted);margin:0;font-size:11px}.setting-form>div{flex:220px}.setting-input{width:360px;max-width:100%}.alert-ok{color:#1d6047;background:#eef8f2;border:1px solid #cfe7da}@media (max-width:760px){.quiz-card{padding:20px}.quiz-stem{font-size:17px}.quiz-tf-row{flex-direction:column;align-items:flex-start}.nav-actions .theme-toggle-label{display:none}.brand-logo{height:38px}.brand-logo img{height:28px}}@media (max-width:380px){.brand>span:last-child{display:none}}[data-theme=dark]{--ink:#e3ece9;--muted:#9fb3ae;--green:#5fbf9f;--green-dark:#4aa98a;--green-soft:#1c2f2b;--cream:#0f1716;--line:#2a3a37;--white:#16211f;--danger:#e58b8b;--shadow:0 24px 70px #00000059;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}[data-theme=dark] body{background:var(--cream);color:var(--ink)}[data-theme=dark] .site-shell{background:radial-gradient(circle at 83% 13%, #3c78642e, transparent 27%), var(--cream)}[data-theme=dark] .button-primary{color:#0b1514}[data-theme=dark] .button-secondary{background:var(--white);color:var(--ink)}[data-theme=dark] .exam-preview{border-color:var(--line);background:#16211fbf}[data-theme=dark] .exam-preview:before{background:#1b2a27}[data-theme=dark] .preview-question,[data-theme=dark] .stat-card,[data-theme=dark] .admin-card,[data-theme=dark] .table-button,[data-theme=dark] .field input{background:var(--white);color:var(--ink);border-color:var(--line)}[data-theme=dark] .preview-option{color:var(--muted)}[data-theme=dark] .preview-option i{background:#22312e}[data-theme=dark] .preview-option.correct{background:#1c3a31;border-color:#2f6a57}[data-theme=dark] .feature-strip,[data-theme=dark] .auth-aside,[data-theme=dark] .admin-nav{background:#0b2420}[data-theme=dark] .auth-page,[data-theme=dark] .auth-panel{background:var(--cream)}[data-theme=dark] .field label{color:var(--muted)}[data-theme=dark] .alert-error{color:#f1b4b4;background:#3a1f1f;border-color:#5a2d2d}[data-theme=dark] .alert-ok{color:#a9e2c8;background:#173229;border-color:#24503f}[data-theme=dark] .signup-success{background:var(--white);border-color:var(--line)}[data-theme=dark] .admin-shell{background:var(--cream)}[data-theme=dark] .admin-table th{color:var(--muted);background:#131d1b}[data-theme=dark] .admin-table td{border-color:var(--line)}[data-theme=dark] .search-input{color:var(--ink);border-color:var(--line);background:#131d1b}[data-theme=dark] .student-avatar{background:#1f3530}[data-theme=dark] .badge{background:#1c3a31}[data-theme=dark] .badge-waiting{color:#f0c27a;background:#3a2c14}[data-theme=dark] .badge-inactive{color:#e7a3a3;background:#3a2222}[data-theme=dark] .badge-admin{color:#aab5e6;background:#262c45}[data-theme=dark] .quiz-option.right,[data-theme=dark] .quiz-tf-row.right{background:#173229;border-color:#2f7a5c}[data-theme=dark] .quiz-option.wrong,[data-theme=dark] .quiz-tf-row.wrong{background:#3a1f1f;border-color:#8a4646}[data-theme=dark] .brand-logo{border-color:#0000}:root{--glass:#ffffff9e;--glass-border:#ffffffbf;--glass-shadow:0 10px 40px #143d381a;--right:#2f9e6e;--right-soft:#2f9e6e24;--wrong:#d0505c;--wrong-soft:#d0505c21}[data-theme=dark]{--glass:#16211f9e;--glass-border:#ffffff12;--glass-shadow:0 10px 40px #00000059;--right:#4cc38f;--right-soft:#4cc38f29;--wrong:#ef6b78;--wrong-soft:#ef6b7826}.lab-shell{background:radial-gradient(1200px 500px at 85% -10%, #5fbf9f33, transparent 60%), radial-gradient(900px 500px at -10% 30%, #5b8def1a, transparent 60%), var(--cream);min-height:100vh}.lab-header{z-index:30;-webkit-backdrop-filter:blur(14px)saturate(1.4);background:color-mix(in srgb, var(--cream) 72%, transparent);border-bottom:1px solid var(--line);position:sticky;top:0}.lab-header-inner{align-items:center;gap:18px;max-width:1240px;margin:auto;padding:10px 24px;display:flex}.lab-nav{gap:4px;margin-left:12px;display:flex}.lab-nav-link{color:var(--muted);border-radius:9px;padding:8px 12px;font-size:13px;font-weight:700;text-decoration:none;transition:background .2s,color .2s}.lab-nav-link:hover,.lab-nav-link.on{background:var(--green-soft);color:var(--green)}.lab-header-tools{align-items:center;gap:8px;margin-left:auto;display:flex}.lab-user{text-overflow:ellipsis;white-space:nowrap;max-width:160px;color:var(--muted);font-size:12px;font-weight:700;overflow:hidden}.lab-main{max-width:1240px;margin:auto;padding:26px 24px 70px}.muted{color:var(--muted)}.small{font-size:12px}.glass-card{background:var(--glass);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);-webkit-backdrop-filter:blur(16px)saturate(1.3);border-radius:18px;position:relative}.lift{transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .25s,border-color .25s;overflow:hidden}.lift:after{content:"";pointer-events:none;background:linear-gradient(115deg,#0000 30%,#ffffff73 50%,#0000 70%);transition:transform .7s;position:absolute;inset:0;transform:translate(-120%)}.lift:hover:not(:disabled){border-color:color-mix(in srgb, var(--green) 35%, transparent);transform:translateY(-4px);box-shadow:0 18px 50px #143d3829}.lift:hover:not(:disabled):after{transform:translate(120%)}[data-theme=dark] .lift:after{background:linear-gradient(115deg,#0000 30%,#ffffff14 50%,#0000 70%)}.shine{position:relative;overflow:hidden}.shine:after{content:"";background:linear-gradient(100deg,#0000,#ffffff73,#0000);width:40%;height:100%;animation:3.2s ease-in-out infinite shine;position:absolute;top:0;left:-60%;transform:skew(-20deg)}@keyframes shine{0%,60%{left:-60%}to{left:140%}}.lab-dash{gap:20px;animation:.5s both rise;display:grid}@keyframes rise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}.lab-hero{justify-content:space-between;align-items:center;gap:24px;padding:28px 30px;display:flex}.lab-hero h1{letter-spacing:-.03em;margin:8px 0 6px;font-family:Georgia,serif;font-size:clamp(28px,3.4vw,40px);font-weight:500}.lab-hero p{color:var(--muted);margin:0}.hero-ring,.score-ring{--p:0;text-align:center;background:radial-gradient(closest-side, var(--white) 76%, transparent 77% 100%), conic-gradient(var(--green) calc(var(--p) * 1%), var(--green-soft) 0);width:118px;height:118px;box-shadow:inset 0 0 0 1px var(--line);border-radius:50%;flex:none;place-content:center;transition:--p 1s;display:grid}.hero-ring strong,.score-ring strong{letter-spacing:-.03em;font-size:26px}.hero-ring span,.score-ring span{color:var(--muted);font-size:11px;font-weight:700}.score-ring.big{width:170px;height:170px}.score-ring.big strong{font-size:40px}.continue-card{color:var(--ink);align-items:center;gap:14px;padding:16px 20px;text-decoration:none;display:flex}.continue-card strong{display:block}.continue-card small{color:var(--muted)}.continue-go{color:var(--green);margin-left:auto;font-weight:800}.continue-dot{background:var(--green);border-radius:50%;width:10px;height:10px;animation:1.8s infinite pulse;box-shadow:0 0 #176c5b80}@keyframes pulse{70%{box-shadow:0 0 0 10px #176c5b00}to{box-shadow:0 0 #176c5b00}}.mode-switch{background:var(--green-soft);border-radius:14px;grid-template-columns:1fr 1fr;gap:10px;padding:5px;display:grid}.mode-switch button{color:var(--ink);text-align:left;cursor:pointer;background:0 0;border:0;border-radius:11px;padding:12px 16px;transition:background .25s,box-shadow .25s,transform .2s}.mode-switch button b{font-size:14px;display:block}.mode-switch button small{color:var(--muted);font-size:12px}.mode-switch button.on{background:var(--white);box-shadow:0 6px 18px #143d381f}.mode-switch button:active{transform:scale(.98)}.preset-grid{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.preset-card{text-align:left;color:var(--ink);cursor:pointer;font:inherit;gap:5px;padding:18px;display:grid}.preset-card strong{font-size:15px}.preset-card small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.preset-card:disabled{opacity:.5;cursor:not-allowed}.preset-icon{background:var(--green-soft);width:34px;height:34px;color:var(--green);border-radius:10px;place-items:center;font-size:16px;display:grid}.preset-mock{color:#fff;background:linear-gradient(135deg,#123d38,#1f6d5c 60%,#2f8c74);border:0;border-radius:18px;position:relative;box-shadow:0 14px 40px #123d384d}.preset-mock small{color:#cfe8df}.preset-mock .preset-icon{color:#ffe08a;background:#ffffff29}.lab-grid{grid-template-columns:1.25fr 1fr;align-items:start;gap:20px;display:grid}.lab-side{gap:20px;display:grid}.lab-card{padding:22px 24px}.lab-card h2{letter-spacing:-.02em;margin:6px 0 14px;font-size:19px}.builder{grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px;display:grid}.builder label{color:var(--muted);letter-spacing:.04em;text-transform:uppercase;gap:5px;font-size:11px;font-weight:800;display:grid}.builder select{border:1px solid var(--line);background:var(--white);height:42px;color:var(--ink);text-transform:none;letter-spacing:0;border-radius:10px;padding:0 10px;font:600 13px/1 inherit}.builder select:disabled{opacity:.55}.histogram{grid-template-columns:repeat(10,1fr);align-items:end;gap:5px;height:120px;margin-top:10px;display:grid}.histogram .bar{background:color-mix(in srgb, var(--green) 30%, transparent);transform-origin:bottom;border-radius:6px 6px 2px 2px;animation:.8s cubic-bezier(.2,.8,.2,1) both grow;position:relative}.histogram .bar.me{background:linear-gradient(var(--green), color-mix(in srgb, var(--green) 70%, #fff))}.histogram .bar span{color:var(--green);font-size:10px;font-weight:800;position:absolute;top:-20px;left:50%;transform:translate(-50%)}@keyframes grow{0%{transform:scaleY(0)}to{transform:scaleY(1)}}.histogram-axis{color:var(--muted);justify-content:space-between;margin-top:4px;font-size:10px;display:flex}.mini-title{margin:18px 0 8px;font-size:13px}.activity{grid-template-columns:repeat(14,1fr);align-items:end;gap:4px;height:56px;display:grid}.activity i{background:var(--line);transform-origin:bottom;border-radius:4px;animation:.7s both grow}.activity i.on{background:var(--green)}.mastery{gap:4px;max-height:560px;padding-right:4px;display:grid;overflow:auto}.mastery-row{color:var(--ink);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:10px;grid-template-columns:minmax(0,1fr) 120px 88px;align-items:center;gap:10px;padding:8px 10px;transition:background .2s,transform .2s;display:grid}.mastery-row:hover:not(:disabled){background:var(--green-soft);transform:translate(3px)}.mastery-name{text-overflow:ellipsis;white-space:nowrap;font-size:12px;font-weight:650;overflow:hidden}.mastery-bar{background:var(--line);border-radius:9px;height:7px;overflow:hidden}.mastery-bar i{background:var(--muted);transform-origin:0;border-radius:9px;height:100%;animation:1s cubic-bezier(.2,.8,.2,1) both fill;display:block}.mastery-bar i.good{background:var(--right)}.mastery-bar i.mid{background:#e0a336}.mastery-bar i.low{background:var(--wrong)}@keyframes fill{0%{transform:scaleX(0)}to{transform:scaleX(1)}}.mastery-num{color:var(--muted);white-space:nowrap;text-align:right;font-size:11px;font-weight:700}.weak-list,.recent-list{gap:6px;margin:0;padding:0;list-style:none;display:grid}.weak-list li,.recent-list a{background:color-mix(in srgb, var(--white) 60%, transparent);color:var(--ink);border-radius:10px;justify-content:space-between;align-items:center;gap:10px;padding:9px 10px;font-size:13px;text-decoration:none;transition:transform .2s,background .2s;display:flex}.recent-list a:hover{background:var(--green-soft);transform:translate(3px)}.weak-list small,.recent-list small{color:var(--muted);font-size:11px;display:block}.weak-list b,.recent-list b{font-size:13px}b.good,.chip.good{color:var(--right)}b.mid{color:#c98a1c}b.low,.chip.low{color:var(--wrong)}.lab-footnote{color:var(--muted);text-align:center;margin:0;font-size:11px}.player{gap:14px;display:grid}.player-top{align-items:center;gap:14px;padding:12px 16px;display:flex}.player-top a{text-decoration:none}.player-title{min-width:0}.player-title strong{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.player-title small{color:var(--muted);font-size:12px}.player-top .button{margin-left:auto}.timer-pill{background:var(--green-soft);color:var(--green);font-variant-numeric:tabular-nums;border-radius:99px;margin-left:auto;padding:8px 12px;font-weight:800}.timer-pill+.button{margin-left:0}.timer-pill.low{background:var(--wrong-soft);color:var(--wrong);animation:1s ease-in-out infinite tick}@keyframes tick{50%{transform:scale(1.06)}}.player-progress{background:var(--line);border-radius:9px;height:6px;overflow:hidden}.player-progress i{background:linear-gradient(90deg, var(--green), #6fd3b0);height:100%;transition:width .5s cubic-bezier(.2,.8,.2,1);display:block}.player-body{grid-template-columns:minmax(0,1fr) 260px;align-items:start;gap:16px;display:grid}.q-card{padding:26px 28px}.enter-next{animation:.38s cubic-bezier(.2,.8,.2,1) both slideInR}.enter-prev{animation:.38s cubic-bezier(.2,.8,.2,1) both slideInL}@keyframes slideInR{0%{opacity:0;transform:translate(28px)}to{opacity:1;transform:none}}@keyframes slideInL{0%{opacity:0;transform:translate(-28px)}to{opacity:1;transform:none}}.q-meta{flex-wrap:wrap;justify-content:space-between;gap:10px;display:flex}.q-count{color:var(--muted);font-size:12px;font-weight:700}.q-stem{letter-spacing:-.01em;margin:14px 0 20px;font-size:19px;font-weight:650;line-height:1.55}.opt-list,.tf-list{gap:10px;display:grid}.glass-opt{border:1px solid var(--line);background:color-mix(in srgb, var(--white) 75%, transparent);-webkit-backdrop-filter:blur(8px);border-radius:13px;transition:transform .2s cubic-bezier(.2,.8,.2,1),border-color .2s,box-shadow .2s,background .3s;position:relative;overflow:hidden}.glass-opt:before{content:"";pointer-events:none;background:linear-gradient(115deg,#0000 35%,#ffffff8c 50%,#0000 65%);position:absolute;inset:0;transform:translate(-130%)}[data-theme=dark] .glass-opt:before{background:linear-gradient(115deg,#0000 35%,#ffffff12 50%,#0000 65%)}.opt{width:100%;color:var(--ink);font:inherit;text-align:left;cursor:pointer;align-items:center;gap:12px;padding:13px 14px;font-size:14px;display:flex}.opt:hover:not(:disabled){border-color:color-mix(in srgb, var(--green) 45%, var(--line));transform:translateY(-2px);box-shadow:0 10px 26px #143d381a}.opt:hover:not(:disabled):before{transition:transform .8s;transform:translate(130%)}.opt:active:not(:disabled){transform:scale(.985)}.opt:disabled{cursor:default}.opt-letter{background:var(--green-soft);width:30px;height:30px;color:var(--green);border-radius:9px;flex:none;place-items:center;font-style:normal;font-weight:800;transition:background .25s,color .25s,transform .3s;display:grid}.opt-text{z-index:1;flex:1;position:relative}.opt.chosen{border-color:var(--green);box-shadow:0 0 0 3px color-mix(in srgb, var(--green) 18%, transparent)}.opt.chosen .opt-letter{background:var(--green);color:#fff}.is-right{animation:1.1s both glowRight;border-color:var(--right)!important;background:linear-gradient(135deg, var(--right-soft), color-mix(in srgb, var(--white) 70%, transparent))!important;box-shadow:0 0 0 3px color-mix(in srgb, var(--right) 22%, transparent), 0 10px 30px color-mix(in srgb, var(--right) 25%, transparent)!important}.opt.is-right .opt-letter,.is-right .opt-letter{background:var(--right);color:#fff;animation:.45s cubic-bezier(.2,1.6,.4,1) both pop}.is-right:before{animation:1s .1s both sweep}.is-wrong{animation:.5s cubic-bezier(.36,.07,.19,.97) both shake;border-color:var(--wrong)!important;background:linear-gradient(135deg, var(--wrong-soft), color-mix(in srgb, var(--white) 70%, transparent))!important}.opt.is-wrong .opt-letter,.is-wrong .opt-letter{background:var(--wrong);color:#fff;animation:.45s cubic-bezier(.2,1.6,.4,1) both pop}@keyframes pop{0%{transform:scale(.4)rotate(-20deg)}to{transform:scale(1)rotate(0)}}@keyframes sweep{0%{transform:translate(-130%)}to{transform:translate(130%)}}@keyframes glowRight{0%{box-shadow:0 0 0 0 color-mix(in srgb, var(--right) 55%, transparent)}60%{box-shadow:0 0 0 10px color-mix(in srgb, var(--right) 0%, transparent)}}@keyframes shake{10%,90%{transform:translate(-1px)}20%,80%{transform:translate(3px)}30%,50%,70%{transform:translate(-6px)}40%,60%{transform:translate(6px)}}.peer{background:color-mix(in srgb, var(--line) 70%, transparent);border-radius:7px;flex:0 0 72px;height:22px;position:relative;overflow:hidden}.peer:before{content:"";width:var(--w);background:color-mix(in srgb, var(--green) 35%, transparent);transform-origin:0;animation:.9s cubic-bezier(.2,.8,.2,1) .2s both fill;position:absolute;inset:0 auto 0 0}.peer b{text-align:center;font-size:11px;line-height:22px;display:block;position:relative}.tf{grid-template-columns:1fr auto;align-items:center;gap:10px 14px;padding:12px 14px;font-size:14px;display:grid}.tf:hover{border-color:color-mix(in srgb, var(--green) 35%, var(--line))}.tf-buttons{gap:6px;display:flex}.tf-buttons button{border:1px solid var(--line);background:var(--white);min-width:64px;color:var(--ink);cursor:pointer;border-radius:9px;padding:8px 10px;font:700 12px/1 inherit;transition:transform .15s,background .2s,border-color .2s}.tf-buttons button:hover:not(:disabled){border-color:var(--green);transform:translateY(-1px)}.tf-buttons button.on{background:var(--green);border-color:var(--green);color:#fff}.tf-buttons button.key{outline:2px solid var(--right);outline-offset:1px}.tf-buttons button:disabled{cursor:default}.tf-key{color:var(--muted);grid-column:1/-1;font-size:11px;font-weight:700}.q-alert{margin-top:12px}.explain{border-left:4px solid var(--right);margin-top:18px;padding:16px 18px;animation:.45s .15s both rise}.explain.bad{border-left-color:var(--wrong)}.explain-head{flex-wrap:wrap;justify-content:space-between;gap:10px;display:flex}.explain.good .explain-head strong{color:var(--right)}.explain.bad .explain-head strong{color:var(--wrong)}.explain-head small{color:var(--muted);font-size:11px}.explain p,.review-explain{color:var(--ink);margin:8px 0;font-size:14px;line-height:1.7}.explain-links{color:var(--muted);flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:12px;display:flex}.explain-links a{color:var(--green);font-weight:800}.q-actions{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-top:20px;display:flex}.q-actions-right{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.flag-on{color:#9a6413!important;background:#fff5e6!important;border-color:#f0c27a!important}[data-theme=dark] .flag-on{color:#f0c27a!important;background:#3a2c14!important}.note-box{border-top:1px dashed var(--line);margin-top:16px;padding-top:12px}.note-box summary{cursor:pointer;color:var(--muted);font-size:13px;font-weight:700}.note-box textarea,.modal textarea{border:1px solid var(--line);background:var(--white);width:100%;min-height:90px;color:var(--ink);font:inherit;resize:vertical;border-radius:10px;margin-top:10px;padding:10px 12px;font-size:14px}.note-box small{color:var(--muted);font-size:11px}.nav-panel{padding:16px;position:sticky;top:82px}.nav-panel-head{align-items:baseline;gap:6px;margin-bottom:12px;display:flex}.nav-panel-head strong{font-size:22px}.nav-panel-head small{color:var(--muted)}.num-grid{grid-template-columns:repeat(6,1fr);gap:5px;max-height:420px;display:grid;overflow:auto}.num{border:1px solid var(--line);background:var(--white);height:32px;color:var(--ink);cursor:pointer;border-radius:8px;font:700 11px/1 inherit;transition:transform .15s,background .2s;position:relative}.num:hover{transform:scale(1.08)}.num.done{background:var(--green-soft);border-color:color-mix(in srgb, var(--green) 40%, var(--line));color:var(--green)}.num.right{background:var(--right);border-color:var(--right);color:#fff}.num.wrong{background:var(--wrong);border-color:var(--wrong);color:#fff}.num.current{outline:2px solid var(--ink);outline-offset:1px}.num.flagged:after{content:"";background:#e0a336;border-radius:50%;width:6px;height:6px;position:absolute;top:3px;right:3px}.num-legend{color:var(--muted);flex-wrap:wrap;gap:8px;margin-top:12px;font-size:10px;display:flex}.num-legend i{vertical-align:-1px;border-radius:3px;width:9px;height:9px;margin-right:3px;display:inline-block}.num-legend i.done{background:var(--green-soft);border:1px solid var(--green)}.num-legend i.right{background:var(--right)}.num-legend i.wrong{background:var(--wrong)}.num-legend i.flagged{background:#e0a336;border-radius:50%}.player.flash-right .q-card{animation:.9s cardRight}.player.flash-wrong .q-card{animation:.6s cardWrong}@keyframes cardRight{0%{box-shadow:var(--glass-shadow)}30%{box-shadow:0 0 0 4px color-mix(in srgb, var(--right) 35%, transparent), 0 20px 60px color-mix(in srgb, var(--right) 30%, transparent)}to{box-shadow:var(--glass-shadow)}}@keyframes cardWrong{0%{box-shadow:var(--glass-shadow)}30%{box-shadow:0 0 0 4px color-mix(in srgb, var(--wrong) 30%, transparent), 0 20px 60px color-mix(in srgb, var(--wrong) 25%, transparent)}to{box-shadow:var(--glass-shadow)}}.confetti{z-index:80;pointer-events:none;position:fixed;top:38%;left:50%}.confetti i{animation:confetti var(--d) cubic-bezier(.15,.7,.3,1) forwards;border-radius:2px;position:absolute}@keyframes confetti{0%{opacity:1;transform:translate(0)rotate(0)}to{transform:translate(var(--x), 320px) rotate(var(--r));opacity:0}}.modal-backdrop{z-index:90;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#08141273;place-items:center;padding:20px;animation:.2s both fadeIn;display:grid;position:fixed;inset:0}.modal{width:100%;max-width:480px;padding:24px;animation:.3s both rise}.modal h2{margin:0 0 6px}.modal-actions{justify-content:flex-end;gap:8px;margin-top:14px;display:flex}.modal .button{margin-top:10px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.results{gap:20px;animation:.5s both rise;display:grid}.results-hero{align-items:center;gap:32px;padding:30px;display:flex}.results-copy h1{letter-spacing:-.03em;margin:8px 0 4px;font-family:Georgia,serif;font-size:clamp(28px,3.5vw,40px);font-weight:500}.passbar{background:var(--line);border-radius:9px;height:10px;margin:14px 0;position:relative}.passbar i{transform-origin:0;border-radius:9px;height:100%;animation:1.2s cubic-bezier(.2,.8,.2,1) both fill;display:block}.passbar i.good{background:var(--right)}.passbar i.low{background:var(--wrong)}.passbar b{background:var(--ink);border-radius:2px;width:3px;height:20px;position:absolute;top:-5px}.result-chips{flex-wrap:wrap;gap:8px;margin:10px 0 4px;display:flex}.chip{background:color-mix(in srgb, var(--white) 70%, transparent);border:1px solid var(--line);border-radius:99px;padding:6px 10px;font-size:12px;font-weight:800}.review-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;display:flex}.review-head h2{margin:0}.review-list{gap:6px;max-height:760px;margin:0;padding:0;list-style:none;display:grid;overflow:auto}.review-item{border:1px solid var(--line);background:color-mix(in srgb, var(--white) 70%, transparent);border-radius:12px;overflow:hidden}.review-row{width:100%;color:var(--ink);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;align-items:center;gap:10px;padding:11px 12px;font-size:13px;transition:background .2s;display:flex}.review-row:hover{background:var(--green-soft)}.review-stem{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.dot{color:#fff;background:var(--muted);border-radius:50%;flex:none;place-items:center;width:24px;height:24px;font-size:11px;font-weight:900;display:grid}.dot.correct{background:var(--right)}.dot.incorrect{background:var(--wrong)}.review-body{padding:4px 14px 14px;animation:.3s both rise}.review-opts{gap:5px;margin:0;padding:0;font-size:13px;list-style:none;display:grid}.review-opts li{border:1px solid var(--line);border-radius:9px;align-items:baseline;gap:6px;padding:8px 10px;display:flex}.review-opts li em{color:var(--muted);margin-left:auto;font-size:11px;font-style:normal;font-weight:700}.review-opts li.is-right,.review-opts li.is-wrong{animation:none}.notes-list{gap:10px;margin:0;padding:0;list-style:none;display:grid}.note-item{border:1px solid var(--line);background:color-mix(in srgb, var(--white) 70%, transparent);border-radius:12px;padding:12px 14px}.note-top{color:var(--muted);align-items:center;gap:8px;font-size:11px;display:flex}.note-text{margin:8px 0;font-size:14px;font-weight:650}.note-item summary{cursor:pointer;font-size:13px;line-height:1.5}.note-item p{font-size:13px;line-height:1.6}.note-item a{color:var(--green);font-size:12px;font-weight:800}.quiz-option,.quiz-tf-row{transition:transform .2s cubic-bezier(.2,.8,.2,1),border-color .2s,box-shadow .2s;position:relative;overflow:hidden}.quiz-option:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 26px #143d381a}.quiz-option.right,.quiz-tf-row.right{animation:1.1s both glowRight}.quiz-option.wrong,.quiz-tf-row.wrong{animation:.5s cubic-bezier(.36,.07,.19,.97) both shake}.quiz-option.right i,.quiz-option.wrong i{animation:.45s cubic-bezier(.2,1.6,.4,1) both pop}.quiz-card{-webkit-backdrop-filter:blur(14px)}.quiz-explain{animation:.4s .1s both rise}@media (max-width:980px){.lab-grid,.player-body{grid-template-columns:1fr}.nav-panel{position:static}.preset-grid{grid-template-columns:repeat(2,1fr)}.lab-header-inner{flex-wrap:wrap}.lab-nav{order:3;width:100%;margin-left:0;overflow-x:auto}}@media (max-width:640px){.lab-main{padding:16px 12px 60px}.lab-header-inner{gap:8px;padding:8px 12px}.lab-user,.lab-header-tools .theme-toggle-label{display:none}.lab-hero,.results-hero{flex-direction:column-reverse;align-items:flex-start;padding:22px}.preset-grid,.builder,.mode-switch{grid-template-columns:1fr}.q-card{padding:18px}.q-stem{font-size:17px}.tf{grid-template-columns:1fr}.peer{flex-basis:52px}.player-top{flex-wrap:wrap}.num-grid{grid-template-columns:repeat(8,1fr)}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.mini-field{color:var(--muted);text-transform:uppercase;letter-spacing:.05em;gap:4px;font-size:10px;font-weight:800;display:grid}.mini-field input{width:100px}.report-msg{white-space:normal;max-width:320px}.report-stem{white-space:normal;max-width:280px}