@import"https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Inter:wght@400;500;600;700&display=swap";.chapter-study-time{margin:0 0 17px;color:#777;font-size:12px}.chapter-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.chapter-summary-card{min-width:0;border:1px solid #c9c7c3;padding:20px}.chapter-summary-card h3{margin:0 0 19px;font-size:12px;font-weight:700;letter-spacing:1.7px;text-transform:uppercase}.chapter-summary-number{display:flex;align-items:baseline;flex-wrap:wrap;gap:10px}.chapter-summary-number strong{color:#111;font-size:clamp(30px,3.6vw,48px);letter-spacing:-1.9px;line-height:1.06}.chapter-summary-number>span{color:#666;font-size:17px}.chapter-summary-card p{min-height:40px;margin:12px 0 17px;font-size:12px;color:#666;line-height:1.6}.chapter-summary-meter{height:8px;background:#deddd9;overflow:hidden}.chapter-summary-meter>span{display:block;height:100%;background:#111}.chapter-summary-meter.is-mastered>span{background:#2f9d55}.chapter-rating-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:22px;border-top:1px solid #d1d0cd;border-left:1px solid #d1d0cd}.chapter-rating-stats article{min-width:0;padding:16px 12px;border-right:1px solid #d1d0cd;border-bottom:1px solid #d1d0cd}.chapter-rating-stats strong{display:block;margin-bottom:9px;color:#111;font-size:26px;line-height:1;letter-spacing:-1px}.chapter-rating-stats article>span{display:flex;align-items:center;gap:6px;color:#666;font-size:11px;line-height:1.5}.rating-dot{flex:0 0 auto}.rating-dot.easy{color:#2f9d55}.rating-dot.medium{color:#d1a522}.rating-dot.hard{color:#c8453d}.rating-dot.unrated{color:#aaa7a2}.chapter-progress-note{margin:13px 0 0;color:#777;font-size:12px;line-height:1.65}.chapter-progress-actions{display:grid;grid-template-columns:1.15fr .85fr 1fr;gap:10px;margin-top:24px}.chapter-progress-actions button{min-width:0;min-height:48px;padding:10px;font-size:12px;font-weight:600;cursor:pointer}.chapter-progress-actions button:disabled{opacity:.6;cursor:default}.chapter-progress-actions .outline-button{border:1px solid #9b9b9b}.chapter-repeat-trigger{display:flex;align-items:center;justify-content:center;gap:10px}.chapter-repeat-panel{margin-top:12px;padding:18px;border:1px solid #9b9b9b;background:#fbfaf8}.chapter-repeat-panel fieldset{min-width:0;margin:0;padding:0;border:0}.chapter-repeat-panel legend{padding:0;font-size:14px;font-weight:600}.chapter-repeat-panel fieldset>p{margin:6px 0 14px;color:#777;font-size:12px}.chapter-repeat-panel label{display:flex;align-items:center;gap:10px;padding:11px 0;font-size:13px;cursor:pointer}.chapter-repeat-panel label.is-empty{opacity:.5;cursor:default}.chapter-repeat-panel input{width:17px;height:17px;margin:0;accent-color:#111}.chapter-repeat-panel label small{margin-left:auto;color:#777}.chapter-repeat-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:15px}.chapter-repeat-actions button{min-height:43px;padding:10px 14px;font-size:12px;cursor:pointer}.chapter-repeat-actions button:disabled{opacity:.4;cursor:not-allowed}.chapter-progress button:focus-visible,.chapter-repeat-panel input:focus-visible{outline:2px solid #111;outline-offset:3px}@media(max-width:560px){.chapter-summary{gap:10px}.chapter-summary-card{padding:15px 12px}.chapter-summary-card h3{font-size:10px;letter-spacing:1.1px;margin-bottom:15px}.chapter-summary-number{gap:7px}.chapter-summary-number strong{font-size:clamp(27px,7.4vw,39px);letter-spacing:-1.2px}.chapter-summary-number>span{font-size:14px}.chapter-summary-card p{min-height:54px;font-size:11px}.chapter-rating-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.chapter-rating-stats article{padding:15px}.chapter-progress-actions{grid-template-columns:1fr}.chapter-progress-actions button{font-size:13px;min-height:48px}.chapter-repeat-actions{flex-direction:column}.chapter-repeat-actions button{width:100%}}.loading-spinner{display:block;width:24px;height:24px;margin:10px auto 8px;border:2px solid #e6e6e6;border-top-color:#777;border-radius:50%;animation:improve-loading-spin 1.1s linear infinite}@keyframes improve-loading-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.loading-spinner{animation-duration:2.4s}}.exam-choice{max-width:1536px;margin:0 auto;padding:64px 4.6% 36px;color:#111}.exam-choice h1{font-size:clamp(36px,5.65vw,86px);line-height:1.12;letter-spacing:-.05em;margin:0;font-weight:700}.exam-choice-subtitle{font-size:clamp(22px,2.8vw,42px);color:#737373;margin:20px 0 42px;letter-spacing:-.035em}.exam-choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.exam-choice-card{position:relative;overflow:hidden;border:1px solid #999;padding:36px;min-height:445px;display:flex;align-items:flex-start;flex-direction:column;background:#fbfaf8}.exam-choice-number{font:24px DM Mono,monospace;color:#777;margin-bottom:22px}.exam-choice-card h2{font-size:clamp(34px,4.4vw,66px);line-height:1.1;letter-spacing:-.045em;margin:0;font-weight:700}.exam-choice-card p{font-size:clamp(17px,1.8vw,26px);color:#777;margin:24px 0 70px;letter-spacing:-.025em}.exam-choice-level{font-size:clamp(23px,3.1vw,44px);line-height:1.2;letter-spacing:-.035em;margin-top:6px;font-weight:600}.exam-choice-action{position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;gap:18px;margin-top:auto;min-height:56px;padding:14px 25px;border:1px solid #111;background:#111;color:#fff;font-size:18px;font-weight:500;cursor:pointer}.exam-choice-action:hover{background:#333}.exam-choice-action:focus-visible,.exam-change:focus-visible{outline:3px solid #999;outline-offset:5px}.exam-choice-card-dark{background:#111;color:#fff;border-color:#111}.exam-choice-card-dark p,.exam-choice-card-dark .exam-choice-number{color:#aaa}.exam-choice-card-dark .exam-choice-action{background:#fff;color:#111;border-color:#fff}.exam-choice-card-dark .exam-choice-action:hover{background:#ddd}.exam-choice-art{position:absolute;right:-20px;bottom:20px;width:240px;height:190px;object-fit:contain;opacity:.7;pointer-events:none}.exam-choice-card-dark .exam-choice-art{filter:brightness(0) invert(1);opacity:.55}.exam-choice-footer{font-size:17px;color:#777;border-bottom:1px solid #bbb;padding:0 0 24px;margin:60px 0 0}.exam-change{border:0;background:transparent;color:inherit;font:inherit;cursor:pointer;white-space:nowrap}.exam-choice-account{display:flex;align-items:center;gap:12px;border:0;background:transparent;color:#fff;font:inherit;cursor:pointer}.exam-coming-soon{max-width:850px;margin:0 auto;padding:100px 30px}.exam-coming-soon h1{font-size:clamp(38px,6vw,68px);letter-spacing:-.04em;margin:20px 0}.exam-coming-soon>p:not(.section-label){font-size:21px;line-height:1.7;color:#666;margin-bottom:35px}@media(max-width:760px){.exam-choice{padding:38px 22px}.exam-choice-grid{grid-template-columns:1fr;gap:20px}.exam-choice-card{min-height:370px;padding:28px}.exam-choice-card h2{font-size:42px}.exam-choice-level{font-size:29px}.exam-choice-subtitle{margin-bottom:30px}.exam-choice-footer{margin-top:32px;font-size:14px}.exam-choice-art{width:170px;height:145px;opacity:.25}.exam-choice-action{font-size:16px;padding:12px 18px}.exam-choice-topbar{padding:0 22px}.exam-choice-topbar .wordmark{font-size:17px;letter-spacing:7px}.exam-choice-account{font-size:14px}.main-nav .exam-change{font-size:12px}}@media(min-width:761px){.exam-choice{max-width:1240px;padding:32px 4.6% 20px}.exam-choice h1{font-size:clamp(36px,4.1vw,62px)}.exam-choice-subtitle{font-size:clamp(22px,2.1vw,30px);margin:12px 0 26px}.exam-choice-grid{gap:24px}.exam-choice-card{min-height:330px;padding:26px}.exam-choice-number{font-size:18px;margin-bottom:18px}.exam-choice-card h2{font-size:clamp(34px,3.4vw,48px)}.exam-choice-level{font-size:clamp(23px,2.5vw,34px)}.exam-choice-card p{font-size:18px;margin:18px 0 38px}.exam-choice-action{min-height:48px;padding:11px 20px;font-size:16px}.exam-choice-art{width:190px;height:150px;bottom:14px}.exam-choice-footer{font-size:14px;margin-top:26px;padding-bottom:16px}}@media(min-width:761px)and (max-height:700px){.exam-choice{padding-top:18px;padding-bottom:12px;max-width:1120px}.exam-choice h1{font-size:44px}.exam-choice-subtitle{font-size:24px;margin:10px 0 18px}.exam-choice-card{min-height:280px;padding:22px}.exam-choice-number{font-size:16px;margin-bottom:12px}.exam-choice-card h2{font-size:38px}.exam-choice-level{font-size:27px}.exam-choice-card p{font-size:16px;margin:14px 0 26px}.exam-choice-action{min-height:44px;font-size:15px;padding:10px 18px}.exam-choice-art{width:155px;height:125px}.exam-choice-footer{margin-top:18px;padding-bottom:12px;font-size:13px}}.topbar:has(.maintenance-notice){gap:24px;min-height:92px;height:auto;padding-top:16px;padding-bottom:16px;flex-wrap:wrap}.maintenance-notice{flex:1 1 280px;margin:0;text-align:center;color:#f4f4f2;font-size:13px;line-height:1.5;letter-spacing:0}.maintenance-notice strong{display:block;font-weight:600}.maintenance-notice>span{display:block;color:#c8c8c4}.maintenance-notice-zone{white-space:nowrap}@media(max-width:1100px){.topbar:has(.maintenance-notice){row-gap:14px}.maintenance-notice{order:3;flex-basis:100%;border-top:1px solid #3a3a3a;padding-top:12px}}@media(max-width:430px){.maintenance-notice{font-size:12px}}:root{font-family:Inter,Arial,sans-serif;color:#111;background:#fbfaf8}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;-webkit-font-smoothing:antialiased}button{font:inherit}.app-shell{min-height:100vh;background:#fbfaf8}.workspace-sync.account-notice{margin:0;padding:12px clamp(16px,4vw,48px);border-top:1px solid #e8e6e2;color:#686868;font-size:12px;line-height:1.5;text-align:right;overflow-wrap:anywhere}.workspace-sync>.text-button{margin-left:12px;padding-top:0;font:inherit}.workspace-sync>details,.workspace-sync>.account-card,.workspace-sync>p{text-align:left}.workspace-sync>details{margin-top:8px}.workspace-sync summary{cursor:pointer}.workspace-sync>.account-card{width:min(100%,680px)}.workspace-sync button:focus-visible,.workspace-sync summary:focus-visible{outline:2px solid #555;outline-offset:3px}.auth-split{min-height:100svh;display:grid;grid-template-columns:46% 54%;background:#fff;color:#111}.auth-brand{position:relative;display:flex;align-items:center;min-height:100svh;padding:60px;background:#111;color:#fff}.auth-brand-logo{position:absolute;top:48px;left:60px;color:inherit;font-size:24px;letter-spacing:5px;text-decoration:none}.auth-brand-copy h1{margin:0;font-size:clamp(40px,5.8vw,84px);line-height:1.14;letter-spacing:-.045em;font-weight:700}.auth-brand-copy p{margin:34px 0 0;font-size:clamp(18px,2.1vw,30px);line-height:1.5;color:#eee}.auth-workspace{position:relative;display:flex;align-items:center;justify-content:center;padding:110px 60px}.auth-login-form{width:min(100%,470px)}.auth-login-form h2{margin:0 0 46px;font-size:clamp(34px,3.5vw,50px);line-height:1.15;letter-spacing:-.035em}.auth-login-fields{display:grid;gap:12px}.auth-login-fields label{font-size:17px;font-weight:600}.auth-login-fields label:not(:first-child){margin-top:22px}.auth-login-fields input{width:100%;height:60px;border:1px solid #bbb;border-radius:8px;padding:0 18px;font:inherit;font-size:16px;background:#fff;color:#111}.auth-login-fields input::placeholder{color:#737373}.auth-password-field{position:relative}.auth-password-field input{padding-right:60px}.auth-password-toggle{position:absolute;right:6px;top:6px;width:48px;height:48px;display:grid;place-items:center;padding:0;border:0;border-radius:5px;background:transparent;color:#666;cursor:pointer}.auth-password-hint{margin:0;font-size:14px;color:#555}.auth-forgot{display:block;margin:18px 0 0 auto;padding:8px 0;border:0;background:transparent;color:#111;font-size:14px;text-decoration:underline;text-underline-offset:3px;cursor:pointer}.auth-forgot+.auth-login-submit{margin-top:28px}.auth-recovery-description{margin:-20px 0 30px;font-size:16px;line-height:1.6;color:#555}.auth-login-fields[hidden]{display:none}.auth-login-submit{display:flex;align-items:center;justify-content:center;gap:24px;width:100%;min-height:66px;margin-top:48px;border:1px solid #111;border-radius:8px;background:#111;color:#fff;font-size:18px;font-weight:600;cursor:pointer}.auth-login-submit:hover{background:#333}.auth-login-submit:disabled{opacity:.6;cursor:wait}.auth-login-switch{margin:34px 0 0;text-align:center;font-size:16px;line-height:1.5}.auth-login-switch button{padding:4px 0;border:0;background:transparent;color:#111;font-weight:600;text-decoration:underline;text-underline-offset:4px;cursor:pointer}.auth-return{position:absolute;left:64px;bottom:40px;display:inline-flex;align-items:center;gap:12px;padding:8px 0;color:#555;text-decoration:none;font-size:14px}.auth-return:hover{text-decoration:underline}.auth-notice{margin:20px 0 0;padding:12px 14px;border-left:2px solid #111;background:#f3f3f3;color:#333;font-size:14px;line-height:1.5}.auth-split :focus-visible{outline:3px solid #777;outline-offset:4px}.auth-loading{min-height:100svh;display:grid;place-content:center;gap:16px;background:#fff;text-align:center}.auth-loading span{font-size:17px;letter-spacing:8px}.auth-loading p{margin:0;color:#555;font-size:13px}@media(max-width:800px){.auth-split{grid-template-columns:1fr}.auth-brand{min-height:auto;padding:100px 28px 40px}.auth-brand-logo{top:28px;left:28px;font-size:18px}.auth-brand-copy h1{font-size:clamp(36px,8vw,58px)}.auth-brand-copy p{margin-top:18px;font-size:18px}.auth-workspace{padding:42px 24px 100px}.auth-login-form h2{margin-bottom:32px;font-size:34px}.auth-login-submit{margin-top:32px}.auth-return{left:24px;bottom:24px}}.topbar{height:92px;padding:0 38px;display:flex;align-items:center;justify-content:space-between;background:#101010;color:#fff}.wordmark{border:0;padding:0;background:transparent;color:#fff;font-size:20px;font-weight:500;letter-spacing:10px;cursor:pointer}.main-nav{display:flex;align-items:stretch;gap:34px;height:100%}.nav-item{position:relative;display:inline-flex;align-items:center;gap:9px;border:0;padding:2px 0 0;background:transparent;color:#bfbfbf;font-size:16px;cursor:pointer}.nav-item:hover,.nav-item:focus-visible,.nav-item.is-active{color:#fff}.nav-item.is-active:after{content:"";position:absolute;left:0;right:0;bottom:24px;height:2px;background:#fff}.home-shell{width:min(100%,1130px);min-height:calc(100vh - 92px);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) 430px;align-items:center;gap:clamp(56px,10vw,145px);padding:68px 46px 90px}.home-intro{max-width:510px}.home-intro h1{margin:14px 0 9px;font-size:clamp(52px,6vw,76px);line-height:.98;letter-spacing:-4px}.home-subtitle{margin:0;color:#777;font-family:DM Mono,monospace;font-size:15px;letter-spacing:.25px}.home-actions{display:grid;width:min(100%,330px);gap:11px;margin-top:37px}.home-actions button{width:100%;min-width:0;height:54px;justify-content:center;font-size:14px}.home-actions .solid-button{display:inline-flex;align-items:center;gap:9px}.home-login-note{max-width:335px;margin:25px 0 0;color:#777;font-size:12px;line-height:1.55}.today-panel{border:1px solid #d7d5d1;padding:23px 28px 18px;background:#fbfaf8}.today-rule{height:1px;margin:13px 0 0;background:#bdbbb7}.today-stat{display:grid;grid-template-columns:40px 70px 1fr;align-items:center;gap:15px;min-height:84px;border-bottom:1px solid #e0dedb}.today-stat svg{color:#202020}.today-stat strong{font-size:26px;letter-spacing:-1.5px}.today-stat strong small{margin-left:4px;font-size:11px;letter-spacing:0;font-weight:500}.today-stat div{display:grid;gap:3px}.today-stat b{font-size:12px;font-weight:600}.today-stat span{color:#85827e;font-size:10px;line-height:1.3}.home-progress-link{display:inline-flex;margin-top:18px;border:0;padding:0;background:transparent;color:#555;font-size:12px;text-decoration:underline;text-underline-offset:4px;cursor:pointer}.home-progress-link:hover{color:#111}.library-workspace{max-width:1320px;min-height:calc(100vh - 92px);margin:0 auto;display:grid;grid-template-columns:minmax(390px,.92fr) minmax(0,1.08fr);padding:52px 36px 62px}.library-tree{padding:0 42px 0 0;min-width:0}.section-label{margin:0 0 12px;color:#777;font-family:DM Mono,monospace;font-size:11px;letter-spacing:1.7px}.library-tree h1{margin:0;font-size:30px;line-height:1.1;letter-spacing:-1.2px}.study-tabs{display:flex;gap:20px;margin-top:18px}.study-tabs button{border:0;padding:0 0 7px;background:transparent;color:#777;font-size:13px;font-weight:600;cursor:pointer;border-bottom:1px solid transparent}.study-tabs button:hover,.study-tabs button:focus-visible{color:#111;outline:none}.study-tabs button.is-active{color:#111;border-bottom-color:#111}.heading-rule{width:100%;height:1px;margin:24px 0 22px;background:#181818}.tree-scroll{height:calc(100vh - 238px);min-height:520px;overflow-y:auto;padding-right:14px;scrollbar-width:thin;scrollbar-color:#aaa transparent}.module{border-bottom:1px solid #dddcd9}.module-button{width:100%;display:grid;grid-template-columns:38px minmax(0,1fr) 24px;gap:10px;align-items:center;border:0;padding:18px 4px;background:transparent;text-align:left;cursor:pointer;color:#151515}.module-button:hover,.module-button:focus-visible{background:#f0efed;outline:none}.module-button.open-library{cursor:default}.module-button.open-library:hover{background:transparent}.module-index{font-family:DM Mono,monospace;font-size:12px;color:#858585}.module-title{font-size:15px;font-weight:600;line-height:1.3}.module-caret{justify-self:end;transition:transform .18s ease}.module-button.is-open .module-caret{transform:rotate(180deg)}.topic-list{margin:0;padding:0 0 13px 47px;list-style:none}.topic-list li{margin:0}.topic-button{width:100%;display:flex;align-items:flex-start;gap:11px;border:0;padding:8px;background:transparent;color:#555;text-align:left;font-size:14px;line-height:1.35;cursor:pointer;border-radius:3px}.topic-button:hover,.topic-button:focus-visible{color:#111;background:#eeece9;outline:none}.topic-button.is-selected{color:#fff;background:#111;font-weight:600}.topic-marker{flex:0 0 auto;width:6px;height:6px;margin-top:6px;border:1px solid currentColor;border-radius:50%}.topic-button.is-selected .topic-marker{background:currentColor}.topic-preview{position:relative;display:flex;flex-direction:column;min-height:720px;border-left:1px solid #d3d2d0;padding:126px 62px 51px 92px}.topic-preview.has-tasks{padding-top:50px}.preview-inner{max-width:570px;width:100%;margin:0 auto;text-align:center}.eyebrow{margin:0 0 18px;color:#858585;font-family:DM Mono,monospace;font-size:10px;letter-spacing:1.2px}.topic-preview h2{margin:0;font-size:clamp(38px,4.6vw,62px);line-height:1.08;letter-spacing:-2.7px;font-weight:700}.preview-rule{width:46px;height:3px;margin:58px auto 34px;background:#111}.empty-message{margin:0;color:#4e4e4e;font-size:19px;line-height:1.55}.chapter-caption{margin:17px auto 0;max-width:390px;color:#8c8c8c;font-size:13px;line-height:1.55}.pager{margin-top:auto;display:flex;justify-content:center;gap:clamp(22px,10vw,178px);padding-top:58px}.pager button{min-width:171px;height:60px;display:inline-flex;justify-content:center;align-items:center;gap:15px;border-radius:4px;font-size:16px;cursor:pointer;transition:transform .16s ease,background .16s ease}.pager button:not(:disabled):hover{transform:translateY(-2px)}.pager button:disabled{opacity:.28;cursor:not-allowed}.outline-button{border:1px solid #9b9b9b;color:#252525;background:transparent}.solid-button{border:1px solid #111;color:#fff;background:#111}.task-runner{width:100%;max-width:720px;margin:0 auto}.task-topline{display:flex;align-items:center;justify-content:space-between;gap:16px}.task-topline .eyebrow{margin:0}.task-topline>span{font-family:DM Mono,monospace;color:#777;font-size:11px;white-space:nowrap}.task-progress{height:2px;margin:17px 0 30px;background:#deddd9}.task-progress span{display:block;height:100%;background:#111;transition:width .2s ease}.chapter-panel{width:min(100%,720px);margin:0 auto;padding-top:20px}.chapter-panel h2{max-width:620px;font-size:clamp(36px,4.2vw,58px);line-height:1.02;text-align:left}.chapter-rule{width:100%;height:1px;margin:30px 0 26px;background:#111}.chapter-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid #d1d0cd;border-left:1px solid #d1d0cd}.chapter-stats article{min-height:104px;display:flex;flex-direction:column;justify-content:flex-end;gap:6px;padding:16px;border-right:1px solid #d1d0cd;border-bottom:1px solid #d1d0cd;background:#fbfaf8}.chapter-stats strong{color:#111;font-size:26px;line-height:1;letter-spacing:-1px}.chapter-stats span{color:#777;font-size:11px;line-height:1.25}.chapter-color-bar{display:flex;height:9px;margin-top:15px;background:#d9d7d3;overflow:hidden}.chapter-color-bar span{min-width:0}.chapter-color-bar .easy{background:#2f9d55}.chapter-color-bar .medium{background:#e0b436}.chapter-color-bar .hard{background:#c8453d}.chapter-color-bar .unrated{background:#c9c6c1}.chapter-actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin-top:31px}.chapter-actions button,.repeat-select{min-width:0;height:52px;display:flex;align-items:center;justify-content:center;border-radius:0;font-size:14px;font-weight:600}.repeat-select{position:relative;border:1px solid #9b9b9b;color:#252525;background:transparent}.repeat-select select{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer}.task-card{border-top:1px solid #111;border-bottom:1px solid #d3d2d0;padding:25px 0 30px}.task-reference{margin:0 0 4px;color:#777;font-family:DM Mono,monospace;font-size:12px;letter-spacing:.7px;line-height:1.45}.task-content{margin:0 0 14px;color:#1a1a1a;font-size:17px;line-height:1.62}.salary-chart{display:block;max-width:100%;width:560px;margin:24px auto;mix-blend-mode:multiply}.answer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:28px}.answer-grid.eight-options{grid-template-columns:repeat(2,minmax(0,1fr))}.answer-option{min-height:59px;display:flex;align-items:center;gap:12px;border:1px solid #d0cfcc;padding:13px 14px;background:transparent;color:#333;text-align:left;font-size:14px;line-height:1.35;cursor:pointer}.answer-option:hover,.answer-option:focus-visible{border-color:#111;outline:none}.answer-option.is-selected{background:#111;border-color:#111;color:#fff}.answer-option .answer-label{flex:0 0 auto;font-family:DM Mono,monospace;font-size:12px;font-weight:500}.task-footer{padding-top:23px}.source-file{color:#4a4a4a;font-size:13px;text-decoration:underline;text-underline-offset:4px}.source-file:hover{color:#111}.math-inline{display:inline-flex;align-items:baseline;margin:0 .16em;vertical-align:-.12em}.math-display{display:block;margin:16px 0;overflow-x:auto}.task-content,.preview-task-copy{white-space:pre-wrap}.task-uploaded-image{display:block;max-width:min(100%,680px);max-height:480px;margin:25px auto;border:1px solid #d0cfcc;object-fit:contain;background:#fff}.cke-diagram{display:block;max-width:100%;margin:25px auto;color:#666;text-align:center;text-decoration:none}.cke-diagram img{display:block;width:100%;height:auto;background:#fff}.cke-diagram span{display:block;margin-top:9px;font-size:12px;text-decoration:underline;text-underline-offset:3px}.task-pager{justify-content:space-between;gap:16px;padding-top:22px}.task-pager button{min-width:151px;height:52px;font-size:14px}.open-tasks-placeholder{padding-top:78px}.practice-workspace{max-width:1440px;min-height:calc(100vh - 92px);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) 322px;background:#f1f0ee}.practice-question{min-width:0;padding:38px clamp(32px,5vw,82px) 62px;background:#f1f0ee}.practice-meta{display:flex;justify-content:space-between;align-items:center;gap:20px;color:#6d6d6d;font-family:DM Mono,monospace;font-size:12px}.back-to-library{border:0;padding:0;background:transparent;color:#222;font-size:12px;cursor:pointer}.back-to-library:hover{text-decoration:underline;text-underline-offset:4px}.practice-question>.task-progress{margin:18px 0 32px}.practice-kicker{margin:0 0 12px;color:#777;font-family:DM Mono,monospace;font-size:11px;letter-spacing:1.4px}.practice-content,.practice-content .task-content{max-width:850px}.practice-answers{max-width:930px;grid-template-columns:1fr;margin-top:32px}.practice-answers.eight-options{grid-template-columns:repeat(2,minmax(0,1fr))}.practice-answers .answer-option{min-height:78px;align-items:center;padding:18px 20px;background:#fbfaf8;font-size:15px}.practice-answers .answer-option:hover:not(:disabled){background:#e8e7e4}.practice-answers .answer-option:disabled{cursor:default;opacity:1}.practice-answers .answer-option.is-selected{background:#111;color:#fff}.practice-answers .answer-option .answer-label{width:28px;font-size:24px;font-weight:400;color:#969696}.practice-answers .answer-option.is-selected .answer-label{color:#fff}.practice-answers .answer-option.is-correct{border-color:#23683c;background:#e7f2e9;color:#173d24}.practice-answers .answer-option.is-correct .answer-label{color:#23683c}.practice-answers .answer-option.is-wrong{border-color:#9b3932;background:#f8e9e7;color:#64231f}.practice-answers .answer-option.is-wrong .answer-label{color:#9b3932}.answer-feedback{max-width:930px;margin-top:14px;padding:14px 16px;border-left:3px solid #777;background:#e8e7e4;color:#414141;font-size:13px;line-height:1.5}.answer-feedback.is-correct{border-color:#23683c;background:#e7f2e9;color:#173d24}.answer-feedback.is-wrong{border-color:#9b3932;background:#f8e9e7;color:#64231f}.true-false-table{max-width:930px;display:grid;margin-top:32px;border-top:1px solid #111;border-left:1px solid #d0cfcc;background:#fbfaf8}.true-false-row{display:grid;grid-template-columns:minmax(0,1fr) 58px 58px;min-height:72px;border-bottom:1px solid #d0cfcc}.true-false-row>div{min-width:0;padding:18px 20px;border-right:1px solid #d0cfcc;color:#1b1b1b;font-size:15px;line-height:1.75;white-space:normal;overflow-wrap:anywhere}.true-false-row>div .math-inline{margin:0 .22em}.true-false-row button{border:0;border-right:1px solid #d0cfcc;background:transparent;color:#111;font-weight:700;font-size:17px;cursor:pointer}.true-false-row button:hover:not(:disabled),.true-false-row button:focus-visible:not(:disabled){background:#e8e7e4;outline:none}.true-false-row button.is-selected{background:#111;color:#fff}.true-false-row button.is-correct{background:#e7f2e9;color:#23683c}.true-false-row button.is-wrong{background:#f8e9e7;color:#9b3932}.true-false-row button:disabled{cursor:default;opacity:1}.reason-pair-task{max-width:930px;display:grid;gap:18px;margin-top:32px}.reason-pair-task section{border:1px solid #d0cfcc;background:#fbfaf8}.reason-pair-task p{margin:0;padding:13px 16px;border-bottom:1px solid #d0cfcc;color:#555;font-size:13px;font-weight:600}.reason-choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.reason-choice-grid.reasons{grid-template-columns:1fr}.reason-choice-grid button{min-height:68px;display:grid;grid-template-columns:40px minmax(0,1fr);align-items:center;gap:12px;border:0;border-right:1px solid #d0cfcc;border-bottom:1px solid #d0cfcc;padding:16px 18px;background:transparent;color:#222;text-align:left;font-size:15px;line-height:1.5;cursor:pointer}.reason-choice-grid button:nth-child(2n){border-right:0}.reason-choice-grid.reasons button{border-right:0}.reason-choice-grid button:hover:not(:disabled),.reason-choice-grid button:focus-visible:not(:disabled){background:#e8e7e4;outline:none}.reason-choice-grid button:disabled{cursor:default;opacity:1}.reason-choice-grid button b{font-family:DM Mono,monospace;font-size:18px;font-weight:600}.reason-choice-grid button.is-selected{background:#111;color:#fff}.reason-choice-grid button.is-correct{border-color:#23683c;background:#e7f2e9;color:#173d24}.reason-choice-grid button.is-wrong{border-color:#9b3932;background:#f8e9e7;color:#64231f}.difficulty-rating{max-width:930px;display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:16px;padding:14px 16px;border:1px solid #d0cfcc;background:#fbfaf8}.difficulty-rating p{margin:0;color:#555;font-size:13px}.difficulty-rating div{display:flex;gap:12px}.difficulty-dot{width:24px;height:24px;border:2px solid transparent;border-radius:50%;padding:0;cursor:pointer;box-shadow:inset 0 0 0 1px #0000002e}.difficulty-dot.green{background:#2f9d55}.difficulty-dot.yellow{background:#e0b436}.difficulty-dot.red{background:#c8453d}.difficulty-dot:hover,.difficulty-dot:focus-visible{outline:2px solid #111;outline-offset:3px}.difficulty-dot.is-selected{border-color:#111;box-shadow:0 0 0 3px #1111111f,inset 0 0 0 1px #ffffff73}.practice-navigator{padding:40px 31px;border-left:1px solid #d6d5d2;background:#e8e7e5}.navigator-title{margin:0;font-size:21px;font-weight:700}.navigator-note{margin:7px 0 25px;color:#777;font-size:12px;line-height:1.45}.task-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:9px}.task-grid button{position:relative;aspect-ratio:1;display:grid;place-items:center;border:1px solid #d4d2cf;background:#fbfaf8;color:#666;font-family:DM Mono,monospace;font-size:12px;cursor:pointer}.task-grid button:hover{border-color:#111;color:#111}.task-grid button.is-current{border-color:#111;background:#111;color:#fff}.task-grid button.is-answered:not(.is-current){border-color:#777;color:#111;font-weight:700}.task-grid button.is-answered.is-correct{border-color:#23683c;background:#e7f2e9;color:#173d24}.task-grid button.is-answered.is-wrong{border-color:#9b3932;background:#f8e9e7;color:#64231f}.task-difficulty-mark{position:absolute;right:5px;bottom:5px;width:9px;height:9px;border-radius:50%;box-shadow:0 0 0 1px #fffc,0 0 0 2px #00000014}.task-difficulty-mark.easy{background:#2f9d55}.task-difficulty-mark.medium{background:#e0b436}.task-difficulty-mark.hard{background:#c8453d}.task-page-controls{display:grid;grid-template-columns:34px 1fr 34px;align-items:center;gap:8px;margin:-10px 0 15px}.task-page-controls button{width:34px;height:34px;display:grid;place-items:center;border:1px solid #c7c5c1;background:#fbfaf8;color:#333;cursor:pointer}.task-page-controls button:disabled{opacity:.35;cursor:default}.task-page-controls span{text-align:center;color:#666;font-family:DM Mono,monospace;font-size:11px}.navigator-actions{display:grid;gap:10px;margin-top:30px}.navigator-actions button{width:100%;min-width:0;height:48px;font-size:13px}.navigator-actions .is-next-suggested:not(:disabled){transform:translateY(-1px);box-shadow:0 8px 18px #11111129}.session-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:13px}.session-actions button{min-width:0;height:38px;border:1px solid #aaa8a4;background:transparent;color:#4e4e4e;font-size:11px;cursor:pointer}.session-actions button:hover,.session-actions button:focus-visible{border-color:#111;background:#111;color:#fff;outline:none}.practice-navigator .source-file{display:inline-block;margin-top:26px}.test-coming-soon{min-height:calc(100vh - 92px);display:grid;place-items:center;padding:70px 24px;background:#f3f2f0}.test-coming-soon section{width:min(100%,620px);border-top:2px solid #111;padding-top:28px}.test-coming-soon h1{margin:0 0 15px;font-size:clamp(42px,5vw,66px);line-height:1;letter-spacing:-3px}.test-coming-soon p:not(.section-label){max-width:520px;margin:0 0 28px;color:#666;font-size:16px;line-height:1.6}.test-coming-soon button{min-width:190px;height:52px;justify-content:center}.task-report{margin-top:14px;border-top:1px solid #d0cfcc;padding-top:14px}.report-toggle{width:100%;height:38px;border:1px solid #aaa8a4;background:transparent;color:#4e4e4e;font-size:11px;cursor:pointer}.report-toggle:hover,.report-toggle:focus-visible{border-color:#111;background:#111;color:#fff;outline:none}.report-box{display:grid;gap:8px;margin-top:9px}.report-box textarea{width:100%;min-height:95px;border:1px solid #c8c6c2;padding:10px;background:#fbfaf8;color:#222;font:inherit;font-size:12px;line-height:1.45;resize:vertical}.report-box div{display:grid;grid-template-columns:1fr 1fr;gap:7px}.report-box button{min-width:0;height:36px;border:1px solid #aaa8a4;background:transparent;color:#4e4e4e;font-size:11px;cursor:pointer}.report-box button:first-child{border-color:#111;background:#111;color:#fff}.task-report p{margin:8px 0 0;color:#686868;font-size:11px;line-height:1.4}.account-workspace,.admin-workspace{min-height:calc(100vh - 92px);padding:86px max(24px,calc((100vw - 1000px)/2));background:#f1f0ee}.account-card{width:min(100%,460px);margin:0 auto;border-top:2px solid #111;padding:28px 0}.account-card h1,.admin-heading h1{margin:0 0 12px;font-size:42px;letter-spacing:-2px}.account-card p,.admin-heading p{color:#626262;line-height:1.55}.account-card label,.task-form>label{display:grid;gap:8px;margin-top:18px;color:#3f3f3f;font-size:13px;font-weight:600}.account-card input,.task-form input,.task-form textarea{width:100%;border:1px solid #c9c8c5;padding:13px;background:#fbfaf8;font:inherit}.task-form textarea{min-height:130px;resize:vertical}.account-submit{width:100%;margin-top:24px;height:52px}.text-button{border:0;padding:15px 0 0;background:transparent;color:#555;text-decoration:underline;cursor:pointer}.account-notice{margin-top:16px;color:#555;font-size:13px}.admin-workspace{display:grid;grid-template-columns:.8fr 1.2fr;gap:74px}.admin-heading{padding-top:4px}.task-form{background:#fbfaf8;border:1px solid #d1d0cd;padding:28px}.admin-options{display:grid;gap:8px;margin-top:20px}.admin-options label{display:grid;grid-template-columns:26px 1fr 26px;align-items:center;gap:10px;border:1px solid #d1d0cd;padding:8px 10px}.admin-options label.is-correct{border-color:#111;background:#f0efed}.admin-options label span{font-family:DM Mono,monospace}.admin-options input[type=radio]{width:17px;height:17px}.publish-toggle{display:flex!important;align-items:center;gap:9px}.publish-toggle input{width:17px;height:17px}.admin-submit{margin-top:23px;width:100%;height:52px}@media(max-width:860px){.topbar{height:auto;min-height:76px;padding:0 24px;gap:24px}.wordmark{font-size:15px;letter-spacing:7px}.main-nav{gap:16px}.nav-item span{display:none}.nav-item.is-active:after{bottom:15px}.home-shell{grid-template-columns:1fr;align-items:start;gap:52px;padding:58px 24px 68px}.home-intro{max-width:none}.today-panel{width:min(100%,430px)}.library-workspace{display:block;padding:42px 24px}.library-tree{padding:0}.tree-scroll{height:auto;max-height:620px;min-height:0}.topic-preview{min-height:580px;margin-top:34px;border-left:0;border-top:1px solid #d3d2d0;padding:66px 0 30px}.topic-preview.has-tasks{padding-top:38px}.task-content{font-size:16px}.chapter-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.chapter-actions{grid-template-columns:1fr}.practice-workspace{display:block}.practice-question{padding:32px 24px 40px}.practice-navigator{border-top:1px solid #d6d5d2;border-left:0;padding:30px 24px}.task-grid{grid-template-columns:repeat(9,1fr)}.admin-workspace{display:block}.admin-heading{margin-bottom:36px}}@media(max-width:430px){.main-nav{gap:11px}.topbar{padding:0 17px}.topic-preview h2{letter-spacing:-2px}.pager{gap:9px}.pager button{min-width:135px}.library-workspace{padding:32px 17px}.module-title{font-size:14px}.topic-list{padding-left:25px}.answer-grid{grid-template-columns:1fr}.task-topline>span{font-size:10px}.task-pager button{min-width:130px}.practice-question{padding:28px 17px 35px}.practice-meta{font-size:10px}.task-grid{grid-template-columns:repeat(5,1fr)}.practice-answers.eight-options,.reason-choice-grid{grid-template-columns:1fr}.reason-choice-grid button{border-right:0}.home-shell{padding:44px 22px 56px}.home-intro h1{font-size:54px;letter-spacing:-3px}.today-panel{padding:21px 19px 16px}.today-stat{grid-template-columns:35px 61px 1fr;gap:10px}.today-stat strong{font-size:24px}}.admin-shell{min-height:calc(100vh - 92px);display:grid;grid-template-columns:246px minmax(0,1fr);background:#f1f0ee}.admin-sidebar{display:flex;flex-direction:column;gap:38px;padding:38px 24px 27px;border-right:1px solid #d2d0cc;background:#e8e7e4}.admin-name{margin:0;font-size:19px;font-weight:700;letter-spacing:3px}.admin-sidebar nav{display:grid;gap:5px}.admin-sidebar nav button{display:flex;align-items:center;gap:11px;width:100%;border:1px solid transparent;padding:12px 11px;background:transparent;color:#494949;text-align:left;font-size:14px;font-weight:600;cursor:pointer}.admin-sidebar nav button:hover,.admin-sidebar nav button:focus-visible{border-color:#bab8b4;color:#111;outline:none}.admin-sidebar nav button.is-active{border-color:#111;background:#111;color:#fff}.nav-badge{margin-left:auto;min-width:20px;height:20px;display:inline-grid;place-items:center;border-radius:999px;background:#111;color:#fff;font-size:10px;line-height:1}.admin-sidebar nav button.is-active .nav-badge{background:#fff;color:#111}.admin-signout{margin-top:auto;border:0;padding:11px 0 0;background:transparent;color:#777;text-align:left;font-size:11px;line-height:1.45;cursor:pointer;overflow-wrap:anywhere}.admin-signout:hover{color:#111;text-decoration:underline;text-underline-offset:4px}.admin-content{width:min(100%,1180px);padding:53px clamp(28px,5vw,82px) 78px}.admin-page-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:35px}.admin-page-heading h1{margin:0 0 9px;font-size:clamp(34px,4vw,49px);line-height:1;letter-spacing:-2.4px}.admin-page-heading p{max-width:510px;margin:0;color:#666;font-size:15px;line-height:1.55}.quick-add{min-width:154px;height:47px;display:inline-flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap;font-size:13px;cursor:pointer}.admin-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(165px,1fr));border-top:1px solid #111;border-left:1px solid #d1d0cd}.admin-stats article{display:flex;min-height:156px;flex-direction:column;justify-content:flex-end;padding:19px;border-right:1px solid #d1d0cd;border-bottom:1px solid #d1d0cd;background:#fbfaf8}.admin-stats p{margin:0 0 auto;color:#666;font-family:DM Mono,monospace;font-size:10px;letter-spacing:.4px;text-transform:uppercase}.admin-stats strong{margin:22px 0 4px;font-size:38px;line-height:1;letter-spacing:-2px}.admin-stats span{color:#818181;font-size:11px}.recent-panel{margin-top:47px;border-top:1px solid #111}.panel-title{display:flex;align-items:end;justify-content:space-between;gap:20px;padding:21px 0}.panel-title .section-label{margin-bottom:7px}.panel-title h2{margin:0;font-size:22px;letter-spacing:-1px}.panel-title .text-button{padding:0;font-size:13px}.recent-list{border-top:1px solid #d1d0cd}.recent-list button{display:grid;grid-template-columns:180px minmax(0,1fr) 110px;align-items:center;gap:20px;width:100%;border:0;border-bottom:1px solid #d1d0cd;padding:17px 5px;background:transparent;color:#111;text-align:left;cursor:pointer}.recent-list button:hover{background:#e8e7e4}.recent-list span{color:#777;font-size:12px}.recent-list b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:600}.recent-list em{justify-self:end;color:#666;font-family:DM Mono,monospace;font-size:10px;font-style:normal}.empty-admin{margin:0;padding:30px 0;color:#777;font-size:14px}.task-filters{display:grid;grid-template-columns:minmax(190px,1.35fr) minmax(180px,.85fr) minmax(150px,.6fr);gap:10px;margin-bottom:24px}.task-filters input,.task-filters select,.task-editor input,.task-editor select,.task-editor textarea{width:100%;border:1px solid #c9c8c5;padding:12px 13px;background:#fbfaf8;color:#171717;font:inherit;font-size:14px}.task-filters select,.task-editor select{border-radius:0;cursor:pointer}.task-table{border-top:1px solid #111}.task-table article{display:grid;grid-template-columns:minmax(0,1fr) 135px 114px;gap:20px;align-items:center;padding:19px 4px;border-bottom:1px solid #d1d0cd}.task-table article>div:first-child{min-width:0}.task-table p{margin:0 0 5px;color:#777;font-family:DM Mono,monospace;font-size:10px;text-transform:uppercase}.task-table h2{overflow:hidden;margin:0;color:#202020;font-size:15px;font-weight:600;line-height:1.35;text-overflow:ellipsis;white-space:nowrap}.task-table span{display:block;overflow:hidden;margin-top:4px;color:#777;font-size:12px;text-overflow:ellipsis;white-space:nowrap}.task-status{display:inline-flex;align-items:center;gap:6px;color:#555;font-size:12px}.task-actions{display:flex;justify-content:flex-end;gap:5px}.task-actions button{display:grid;width:34px;height:34px;place-items:center;border:1px solid #c9c8c5;background:#fbfaf8;color:#222;cursor:pointer}.task-actions button:hover{border-color:#111;background:#111;color:#fff}.task-list-summary{margin:-8px 0 12px;color:#777;font-family:DM Mono,monospace;font-size:11px;letter-spacing:.3px}.task-pagination{display:flex;align-items:center;justify-content:flex-end;gap:12px;margin-top:18px}.task-pagination span{color:#666;font-family:DM Mono,monospace;font-size:11px}.task-pagination button{min-width:112px;height:38px;border:1px solid #aaa8a4;background:transparent;color:#444;font-size:12px;cursor:pointer}.task-pagination button:hover:not(:disabled),.task-pagination button:focus-visible:not(:disabled){border-color:#111;background:#111;color:#fff;outline:none}.task-pagination button:disabled{opacity:.45;cursor:default}.task-editor{max-width:760px;border-top:1px solid #111;padding-top:25px}.task-editor>label{display:grid;gap:8px;margin-top:18px;color:#3f3f3f;font-size:13px;font-weight:600}.task-editor textarea{min-height:156px;resize:vertical}.task-editor textarea.short-area{min-height:90px}.editor-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.editor-grid label{display:grid;gap:8px;color:#3f3f3f;font-size:13px;font-weight:600}.optional{color:#888;font-size:11px;font-weight:400}.editor-options{display:grid;gap:8px;margin:27px 0 0;padding:0;border:0}.editor-options legend{margin-bottom:10px;color:#3f3f3f;font-size:13px;font-weight:600}.editor-options label{display:grid;grid-template-columns:27px 1fr 24px;align-items:center;gap:10px;border:1px solid #d1d0cd;padding:8px 10px;background:#fbfaf8}.editor-options label.is-correct{border-color:#111;background:#e8e7e4}.editor-options b{font-family:DM Mono,monospace;font-size:13px;font-weight:500}.editor-options input[type=radio],.editor-options input[type=checkbox]{width:17px;height:17px;padding:0}.task-editor .publish-toggle{display:flex;align-items:center;gap:9px;margin-top:22px;color:#333;font-size:13px;font-weight:600}.task-editor .publish-toggle input{width:17px;height:17px;padding:0}.editor-footer{display:flex;justify-content:flex-end;gap:9px;margin-top:28px}.editor-footer button{min-width:142px;height:50px;font-size:14px;cursor:pointer}.students-table{border-top:1px solid #111}.students-table article{display:grid;grid-template-columns:42px minmax(0,1fr) 55px 155px;align-items:center;gap:13px;padding:16px 4px;border-bottom:1px solid #d1d0cd}.student-avatar{display:grid;width:35px;height:35px;place-items:center;border:1px solid #111;border-radius:50%;background:#111;color:#fff;font-family:DM Mono,monospace;font-size:13px}.students-table h2{overflow:hidden;margin:0 0 3px;font-size:14px;font-weight:600;text-overflow:ellipsis;white-space:nowrap}.students-table p{margin:0;color:#777;font-size:11px}.students-table strong{text-align:right;font-size:20px}.students-table span{color:#777;font-size:11px}.reports-list{border-top:1px solid #111}.reports-list article{display:grid;grid-template-columns:minmax(0,1fr) 170px;gap:14px 24px;padding:18px 4px;border-bottom:1px solid #d1d0cd}.reports-list article.is-unread{background:#f6f2e8}.reports-list p{margin:0 0 5px;color:#777;font-family:DM Mono,monospace;font-size:10px;letter-spacing:.4px;text-transform:uppercase}.reports-list time{color:#858585;font-size:11px}.reports-list blockquote{grid-column:1;margin:0;color:#222;font-size:14px;line-height:1.55;white-space:pre-wrap}.report-actions{grid-column:2;grid-row:1 / span 2;display:flex;flex-direction:column;gap:8px;align-self:center}.reports-list .report-actions button{grid-column:auto;grid-row:auto;width:100%;align-self:stretch;padding:6px 10px}@media(max-width:680px){.reports-list article{grid-template-columns:minmax(0,1fr)}.report-actions{grid-column:1;grid-row:auto}}.reports-list button{grid-column:2;grid-row:1 / span 2;align-self:center;min-height:38px;border:1px solid #aaa8a4;background:transparent;color:#4e4e4e;font-size:12px;cursor:pointer}.reports-list button:hover:not(:disabled),.reports-list button:focus-visible:not(:disabled){border-color:#111;background:#111;color:#fff;outline:none}.reports-list button:disabled{opacity:.45;cursor:default}.formula-helper{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:8px;padding:11px 12px;border:1px solid #d1d0cd;background:#e8e7e4}.formula-helper p{margin:0;color:#606060;font-size:11px;line-height:1.45}.formula-helper code{color:#111;font-family:DM Mono,monospace}.formula-helper div{display:flex;gap:5px}.formula-helper button{min-width:32px;height:29px;border:1px solid #bbb9b5;background:#fbfaf8;cursor:pointer}.formula-helper button:hover{border-color:#111;background:#111;color:#fff}.live-math-preview{min-height:57px;margin-top:10px;padding:11px 13px;border-left:2px solid #111;background:#f5f4f1;color:#2a2a2a;font-size:14px;line-height:1.6}.live-math-preview .section-label{margin-bottom:5px}.image-uploader{display:grid;grid-template-columns:1fr auto;align-items:center;gap:12px;margin-top:21px;padding:15px;border:1px dashed #aaa8a4;background:#f5f4f1}.image-uploader p{margin:0 0 4px;font-size:13px;font-weight:600}.image-uploader small{color:#777;font-size:11px}.file-button{border:1px solid #111;padding:9px 12px;background:#111;color:#fff;font-size:12px;font-weight:600;cursor:pointer}.file-button input{display:none}.image-preview{grid-column:1 / -1;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:start;margin-top:4px}.image-preview img{max-width:100%;max-height:270px;border:1px solid #d1d0cd;background:#fff;object-fit:contain}.image-preview button{border:0;padding:6px 0;background:transparent;color:#555;font-size:11px;text-decoration:underline;cursor:pointer}.student-preview-backdrop{position:fixed;z-index:20;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:30px;background:#1111117a}.student-preview{position:relative;width:min(100%,780px);max-height:min(86vh,860px);overflow-y:auto;padding:43px;border-top:3px solid #111;background:#fbfaf8;box-shadow:0 18px 55px #0000002e}.preview-close{position:absolute;top:15px;right:18px;border:0;background:transparent;color:#555;font-size:28px;line-height:1;cursor:pointer}.student-preview h2{margin:0 0 24px;font-family:DM Mono,monospace;color:#777;font-size:11px;font-weight:400}.preview-task-copy{padding:21px 0 25px;border-top:1px solid #111;color:#1c1c1c;font-size:18px;line-height:1.65}.preview-task-image{display:block;max-width:100%;max-height:340px;margin:0 auto 25px;border:1px solid #d1d0cd;object-fit:contain}.preview-options{display:grid;gap:8px}.preview-options>div{display:flex;align-items:center;gap:16px;min-height:58px;border:1px solid #d1d0cd;padding:13px 15px;font-size:14px}.preview-options b{width:21px;font-family:DM Mono,monospace;font-size:13px}.student-preview aside{margin-top:22px;padding:16px;border-left:2px solid #111;background:#f0efed;font-size:13px;line-height:1.55}.student-preview aside p{margin:0 0 7px;font-family:DM Mono,monospace;font-size:10px;letter-spacing:.5px;text-transform:uppercase}@media(max-width:860px){.admin-shell{display:block}.admin-sidebar{gap:17px;padding:21px 24px;border-right:0;border-bottom:1px solid #d2d0cc}.admin-sidebar nav{display:flex;overflow-x:auto;gap:6px}.admin-sidebar nav button{flex:0 0 auto;width:auto}.admin-signout{display:none}.admin-content{padding:40px 24px 56px}.admin-stats{grid-template-columns:repeat(2,1fr)}.admin-page-heading{align-items:flex-start}.recent-list button{grid-template-columns:120px minmax(0,1fr)}.recent-list em{display:none}.task-table article{grid-template-columns:minmax(0,1fr) 104px}.task-actions{grid-column:2;grid-row:1}.task-status{grid-column:1}.students-table article{grid-template-columns:42px minmax(0,1fr) 44px}.students-table span{display:none}}@media(max-width:540px){.admin-content{padding:31px 17px 48px}.admin-page-heading{display:block}.quick-add{margin-top:20px}.admin-stats{grid-template-columns:1fr 1fr}.admin-stats article{min-height:130px}.admin-stats strong{font-size:31px}.task-filters,.editor-grid{grid-template-columns:1fr}.task-table article{grid-template-columns:minmax(0,1fr);gap:10px}.task-actions{grid-column:auto;grid-row:auto;justify-content:flex-start}.task-status{grid-column:auto}.editor-footer{justify-content:stretch}.editor-footer button{flex:1;min-width:0}.reason-pair-section label{grid-template-columns:24px minmax(0,1fr) 22px}.students-table article{grid-template-columns:39px minmax(0,1fr) 35px;gap:7px}}.progress-shell{max-width:1170px;min-height:calc(100vh - 92px);margin:0 auto;padding:62px 46px 80px}.progress-heading h1{margin:0 0 11px;font-size:clamp(40px,5vw,64px);letter-spacing:-3px;line-height:1}.progress-heading p:not(.section-label){margin:0;color:#666;font-size:16px}.progress-tabs{display:flex;gap:20px;margin-top:37px;border-bottom:1px solid #171717}.progress-tabs button{display:inline-flex;align-items:center;gap:8px;border:0;border-bottom:2px solid transparent;padding:0 0 13px;background:transparent;color:#777;font-size:14px;font-weight:600;cursor:pointer}.progress-tabs button.is-active{border-bottom-color:#111;color:#111}.study-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));margin-top:34px;border-top:1px solid #111;border-left:1px solid #d1d0cd}.study-stats article{min-height:160px;display:grid;grid-template-columns:1fr auto;align-content:end;gap:5px;padding:21px;border-right:1px solid #d1d0cd;border-bottom:1px solid #d1d0cd;background:#f3f2f0}.study-stats svg{align-self:start;color:#555}.study-stats strong{font-size:clamp(27px,4vw,42px);letter-spacing:-2px;line-height:1}.study-stats span{grid-column:1 / -1;color:#777;font-size:12px}.progress-section,.repeat-section,.test-progress-empty{margin-top:53px;border-top:1px solid #111;padding-top:20px}.progress-section h2,.repeat-section h2,.test-progress-empty h2{margin:0;font-size:23px;letter-spacing:-1px}.topic-progress-list{margin-top:21px}.topic-progress-list article{display:grid;grid-template-columns:minmax(0,1fr) 240px;align-items:center;gap:28px;padding:15px 0;border-bottom:1px solid #d1d0cd}.topic-progress-list b{display:block;font-size:14px}.topic-progress-list span{display:block;margin-top:4px;color:#777;font-size:12px}.topic-progress-list em{display:block;margin-top:5px;color:#555;font-size:11px;font-style:normal}.progress-line{height:5px;overflow:hidden;background:#d7d5d2}.progress-line i{display:block;height:100%;background:#111}.progress-line-stacked{display:flex;height:9px}.progress-line-stacked i{min-width:0}.progress-line-stacked .easy{background:#2f9d55}.progress-line-stacked .medium{background:#e0b436}.progress-line-stacked .hard{background:#c8453d}.progress-line-stacked .unrated{background:#d7d5d2}.repeat-section>p:last-child,.test-progress-empty p:last-child{max-width:520px;color:#777;font-size:14px;line-height:1.55}.repeat-section>div{display:grid;grid-template-columns:repeat(3,1fr);gap:11px;margin-top:21px}.repeat-section article{min-height:91px;padding:15px;border:1px solid #d1d0cd;background:#f3f2f0}.repeat-section b{display:block;font-size:13px;line-height:1.35}.repeat-section span{display:block;margin-top:10px;color:#777;font-size:11px}.test-progress-empty{min-height:300px;padding:37px 0;text-align:center}.test-progress-empty p:last-child{margin:18px auto 0}.progress-empty{max-width:550px;margin:0 auto;padding:115px 0;text-align:center}.progress-empty h1{margin:0 0 18px;font-size:40px;letter-spacing:-2px}.progress-empty p:last-child{color:#777;line-height:1.6}@media(max-width:680px){.progress-shell{padding:40px 20px 60px}.study-stats{grid-template-columns:1fr}.topic-progress-list article{grid-template-columns:1fr;gap:10px}.repeat-section>div{grid-template-columns:1fr}.progress-heading h1{letter-spacing:-2px}}.editor-options label{gap:8px 10px}.option-preview{grid-column:2 / 4;min-height:22px;color:#555;font-size:13px;font-weight:400;line-height:1.6}.option-preview .math-inline{display:inline-flex;align-items:center}.true-false-editor{display:grid;gap:10px;margin:27px 0 0;padding:0;border:0}.true-false-editor legend{margin-bottom:10px;color:#3f3f3f;font-size:13px;font-weight:600}.true-false-editor label{display:grid;grid-template-columns:28px minmax(0,1fr) 104px 58px;gap:10px;align-items:start;padding:10px;border:1px solid #d1d0cd;background:#fbfaf8}.true-false-editor b{padding-top:12px;font-family:DM Mono,monospace;font-size:13px;font-weight:500}.true-false-editor textarea{min-height:74px;resize:vertical}.true-false-editor select{height:42px}.true-false-editor label>button{height:42px;border:1px solid #bbb9b5;background:transparent;color:#555;font-size:11px;cursor:pointer}.true-false-editor label>button:hover{border-color:#111;background:#111;color:#fff}.true-false-editor .option-preview{grid-column:2 / 5}.add-row-button{width:max-content;min-width:170px;height:42px;margin-top:2px;cursor:pointer}.editor-hint{margin:-2px 0 8px;color:#777;font-size:12px;line-height:1.45}.reason-pair-editor{display:grid;gap:14px;margin:27px 0 0;padding:0;border:0}.reason-pair-editor legend{margin-bottom:10px;color:#3f3f3f;font-size:13px;font-weight:600}.reason-pair-section{display:grid;gap:8px}.reason-pair-section>span{color:#555;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.reason-pair-section label{display:grid;grid-template-columns:28px minmax(0,1fr) 24px;gap:10px;align-items:start;padding:10px;border:1px solid #d1d0cd;background:#fbfaf8}.reason-pair-section label.is-correct{border-color:#111;background:#e8e7e4}.reason-pair-section b{padding-top:12px;font-family:DM Mono,monospace;font-size:13px;font-weight:500}.reason-pair-section textarea{min-height:68px;resize:vertical}.reason-pair-section input[type=radio]{width:17px;height:17px;margin-top:12px;padding:0}.reason-pair-section .option-preview{grid-column:2 / 4}.reason-pair-preview{display:grid;gap:12px}.reason-pair-preview>p{margin:0 0 2px;color:#555;font-size:13px}.reason-pair-stem{display:grid;gap:8px}.reason-pair-stem>span{color:#777;font-family:DM Mono,monospace;font-size:10px;letter-spacing:.5px;text-transform:uppercase}.reason-pair-stem>div{display:flex;align-items:center;gap:16px;min-height:58px;border:1px solid #d1d0cd;padding:13px 15px;font-size:14px}.reason-pair-stem b{width:21px;font-family:DM Mono,monospace;font-size:13px}.answer-formula-helper{margin-top:10px}.answer-formula-helper p b{color:#111;font-family:DM Mono,monospace}.import-panel{max-width:760px;border-top:1px solid #111;padding-top:25px}.import-panel label{display:grid;gap:8px;margin-top:18px;color:#3f3f3f;font-size:13px;font-weight:600}.import-panel input,.import-panel select,.import-panel textarea{width:100%;border:1px solid #c9c8c5;padding:12px 13px;background:#fbfaf8;color:#171717;font:inherit;font-size:14px}.import-panel textarea{min-height:310px;resize:vertical;line-height:1.5}.import-panel textarea.bulk-area{min-height:430px}.import-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:22px}.import-actions button{min-width:150px;height:48px;font-size:13px;cursor:pointer}.import-actions button:disabled{opacity:.55;cursor:wait}.exam-source{margin:0 0 22px;color:#606060;font-size:12px;line-height:1.6}.exam-source-line{display:flex;flex-wrap:wrap;align-items:center;gap:7px 13px}.exam-source-title{color:#242424;font-weight:600}.exam-source-line a{color:#444;text-decoration:underline;text-underline-offset:3px}.exam-original{margin-top:12px}.exam-original summary{cursor:pointer;width:fit-content}.exam-original img{display:block;width:100%;max-width:820px;height:auto;margin-top:12px;border:1px solid #d1d0cd;background:#fff}.exam-editor{margin:20px 0;padding:16px;border:1px solid #d1d0cd}.exam-editor legend{padding:0 6px;color:#444;font-size:12px}.exam-editor .editor-grid{margin-top:14px}.exam-editor .exam-source{margin-top:14px;margin-bottom:0}.answer-choice-wrap{display:contents}.answer-group-stem{grid-column:1 / -1;margin:18px 0 4px;font-size:16px;line-height:1.6}.grouped-score{margin-top:18px;font-size:14px;font-weight:600}.preview-options .preview-answer-wrap{display:contents}.preview-options .preview-answer-wrap>div{display:flex;gap:12px;align-items:center}.open-response{display:grid;gap:18px;margin:28px 0}.open-response label{display:grid;gap:8px}.open-response input,.open-response textarea{width:100%;padding:14px;border:1px solid #ccc;background:#fff;color:inherit;font:inherit}.open-response textarea{min-height:120px;resize:vertical}.open-response input:disabled,.open-response textarea:disabled{opacity:1;background:#f4f3f1}.open-response .solid-button{justify-self:start}.open-coefficients{display:grid;grid-template-columns:1fr 1fr;gap:18px}.open-answer-hint{font-size:14px;color:#666;margin:0}.open-response .answer-feedback p{margin:8px 0}.answer-option-image{display:block;width:min(100%,300px);height:auto;margin:12px}.original-layout-task{display:block;color:#555;text-decoration:none;margin:24px 0}.original-layout-task img{display:block;width:100%;max-width:1040px;height:auto;margin:0 auto;background:#fff}.original-layout-task span{display:block;margin-top:10px;text-align:right;font-size:13px;text-decoration:underline}.original-layout-answers .answer-option{width:100%;min-height:60px;justify-content:center}.study-plan-section{margin-top:53px;border-top:1px solid #111;padding-top:20px}.study-plan-heading{display:flex;justify-content:space-between;align-items:start;gap:24px}.study-plan-heading h2{margin:0;font-size:23px;letter-spacing:-1px}.study-plan-date{display:grid;gap:8px;color:#666;font-size:12px}.study-plan-date input{min-height:42px;padding:8px 12px;border:1px solid #bdbbb7;background:#fbfaf8;color:#111;font:inherit;font-size:14px}.study-plan-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px;margin-top:24px}.study-plan-cards article{display:grid;align-content:start;gap:10px;padding:24px;border:1px solid #d1d0cd;background:#f3f2f0}.study-plan-cards strong{font-size:clamp(36px,5vw,52px);letter-spacing:-2px;line-height:1}.study-plan-cards span{font-size:14px;font-weight:600}.study-plan-cards small{color:#777;font-size:12px;line-height:1.5}.study-plan-cards .study-plan-pace{background:#111;color:#fff;border-color:#111}.study-plan-pace small{color:#c7c7c7}.study-plan-completion{display:flex;align-items:center;gap:18px;margin-top:24px}.study-plan-completion progress{flex:1;width:100%;height:7px;border:0;background:#d7d5d2;-webkit-appearance:none;-moz-appearance:none;appearance:none}.study-plan-completion progress::-webkit-progress-bar{background:#d7d5d2}.study-plan-completion progress::-webkit-progress-value{background:#111}.study-plan-completion progress::-moz-progress-bar{background:#111}.study-plan-completion span{color:#555;font-size:12px;white-space:nowrap}.study-plan-note{max-width:800px;color:#777;font-size:12px;line-height:1.65;margin:16px 0 0}@media(max-width:680px){.study-plan-heading{flex-direction:column}.study-plan-cards{grid-template-columns:1fr}.study-plan-date{width:100%}}.tests-shell{max-width:1170px;margin:0 auto;padding:62px 46px 80px;min-height:calc(100vh - 92px)}.tests-shell h1{margin:0 0 20px;font-size:clamp(32px,4vw,52px);letter-spacing:-2px;line-height:1.1}.tests-intro{max-width:780px;color:#666;line-height:1.65}.test-module-list{border-top:1px solid #111;margin-top:32px}.test-module-list article{display:grid;grid-template-columns:40px 1fr auto;gap:20px;align-items:center;padding:24px 0;border-bottom:1px solid #d1d0cd}.test-module-number{font:13px DM Mono,monospace;color:#888}.test-module-list h2{font-size:18px;margin:0 0 8px;letter-spacing:-.5px}.test-module-list p{color:#777;font-size:12px;margin:0}.tests-shell .solid-button,.tests-shell .outline-button{min-height:43px;padding:10px 18px;cursor:pointer}.tests-shell button:disabled{cursor:default;opacity:.5}.test-history-section{border-top:1px solid #111;margin-top:48px;padding-top:20px}.test-history-section h2{font-size:24px;letter-spacing:-1px}.test-history-list article{display:flex;align-items:center;gap:20px;border-bottom:1px solid #d1d0cd;padding:20px 0}.test-history-list article>div{flex:1}.test-history-list b,.test-history-list span{display:block}.test-history-list div span{font-size:12px;color:#777;margin-top:7px}.test-pass{color:#23683c;font-size:13px}.test-fail{color:#9b3932;font-size:13px}.test-run-heading{display:flex;justify-content:space-between;align-items:start;gap:24px}.test-run-heading .outline-button{flex-shrink:0}.test-task-navigation{display:flex;flex-wrap:wrap;gap:6px;margin:28px 0}.test-task-navigation button{width:36px;height:36px;border:1px solid #d1d0cd;background:transparent;color:#777;cursor:pointer;font-size:12px}.test-task-navigation .is-answered{background:#eae8e4;color:#111;border-color:#888}.test-task-navigation .is-current{background:#111;color:#fff;border-color:#111}.test-question{border-top:1px solid #111;padding-top:25px}.test-question .task-content{font-size:19px;line-height:1.8}.test-original-layout{max-width:100%;height:auto}.test-result{display:flex;gap:30px;align-items:center;padding:26px;background:#111;color:#fff}.test-result>strong{font-size:48px;letter-spacing:-2px}.test-result h2{margin:0;font-size:23px}.test-result p{color:#ccc;font-size:13px}.test-run-controls{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}.test-run-controls .solid-button{margin-left:auto}.test-finish-confirm,.test-resume{padding:24px;margin-top:24px;border:1px solid #111;background:#f3f2f0}.test-finish-confirm p{color:#666;line-height:1.6}.test-finish-confirm button{margin:12px 12px 0 0}@media(max-width:680px){.tests-shell{padding:40px 20px 60px}.test-module-list article{grid-template-columns:25px 1fr;gap:12px}.test-module-list button{grid-column:2;justify-self:start}.test-run-heading{flex-direction:column}.test-result{flex-direction:column;align-items:start;gap:12px}.test-history-list article{flex-wrap:wrap}.test-history-list article>div{flex-basis:100%}.test-run-controls .solid-button{margin-left:0}}.history-pagination{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:20px}.history-pagination span{font-size:12px;color:#777;text-align:center}.history-pagination button,.session-review-heading button,.progress-shell .test-history-list button,.progress-shell .test-resume button{min-height:42px;padding:9px 16px;cursor:pointer}.history-pagination button:disabled{opacity:.45;cursor:default}.session-review-heading{display:flex;flex-wrap:wrap;gap:14px;align-items:center}.session-review-heading h3{flex:1;margin:0}.test-history-list article>.session-history-actions{flex:0 0 auto}.session-history-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.session-history-actions button:disabled{opacity:.45;cursor:default}.progress-shell .session-history-actions .session-history-delete{color:#b32626;background:transparent;border:0;font-size:30px;line-height:1;padding:5px 12px;min-width:42px}.session-history-delete:hover{background:#fff0f0!important}.session-history-delete:focus-visible{outline:2px solid #b32626;outline-offset:3px}.session-delete-confirm{border:1px solid #d1d0cd;padding:20px;margin:20px 0}.session-delete-confirm h3{margin-top:0}.session-delete-confirm p{line-height:1.5;color:#626262}@media(max-width:680px){.test-history-list article>.session-history-actions{flex:1 1 100%}}.session-answer-text{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;line-height:1.6}@media(max-width:680px){.history-pagination{flex-wrap:wrap}.history-pagination span{order:-1;width:100%}.history-pagination button{font-size:12px}.session-review-heading h3{flex-basis:100%}}.topic-search{display:flex;align-items:center;gap:10px;border:1px solid #d2d1ce;padding:10px 12px;margin:0 0 12px;color:#555}.topic-search span{font-size:24px;line-height:1}.topic-search input{width:100%;min-width:0;border:0;outline:0;background:transparent;font:inherit;font-size:13px;color:#111}.topic-search:focus-within{border-color:#111}.library-tree .tree-scroll{padding-right:0;height:calc(100vh - 295px);border:1px solid #d2d1ce}.library-tree .module{border-bottom:1px solid #deddda}.library-tree .module:last-child{border-bottom:0}.library-tree .module-button{grid-template-columns:28px minmax(0,1fr) 18px;padding:13px 12px;gap:10px}.library-tree .topic-list{padding:0 0 8px;background:#f5f4f2}.library-tree .topic-button{padding:10px 12px 10px 50px;border-radius:0}.library-tree .module-title{font-weight:500}.library-tree .module-button.is-open .module-title{font-weight:700}.empty-search{padding:16px;color:#666}.curriculum-filters{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 24px}.curriculum-filters button{background:transparent;color:#555;border:1px solid #ccc;padding:8px 12px;cursor:pointer;font:inherit;font-size:13px}.curriculum-filters button.is-active{background:#111;color:#fff;border-color:#111}@media(max-width:900px){.library-tree .tree-scroll{height:auto;max-height:620px;min-height:0}}.library-tree .module-button{grid-template-columns:28px minmax(0,1fr) auto 18px}.library-tree .topic-button{display:flex;align-items:center;justify-content:space-between;gap:10px}.exam-frequency-badge{flex-shrink:0;font:11px DM Mono,monospace;background:#eeedeb;color:#333;padding:3px 6px;border-radius:3px}.topic-button.is-selected .exam-frequency-badge{background:#333;color:#fff}.tree-frequency-caption{color:#777;font-size:11px;line-height:1.5;margin:10px 0 0}.exam-frequency{border:1px solid #d2d1ce;padding:20px;margin:0 0 26px}.exam-frequency-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.exam-frequency-heading h3{margin:0;font-size:21px;letter-spacing:-.6px}.exam-frequency-heading>span{color:#777;font-size:11px}.exam-frequency-scopes{display:flex;flex-wrap:wrap;gap:6px;margin:16px 0}.exam-frequency-scopes button{border:1px solid #d2d1ce;background:transparent;padding:6px 12px;font:inherit;font-size:12px;cursor:pointer}.exam-frequency-scopes .is-active{background:#111;color:#fff;border-color:#111}.exam-frequency-result{display:flex;gap:20px;align-items:center}.exam-frequency-result>strong{font-size:48px;line-height:1;letter-spacing:-2px}.exam-frequency-result p{margin:0;font-size:14px;line-height:1.6}.exam-frequency-result p>span{display:block;font-size:11px;color:#777}.exam-frequency-years{display:flex;gap:8px;margin:16px 0}.exam-frequency-years>span{background:#eeedeb;border:1px solid #d2d1ce;color:#777;padding:5px 9px;font-size:11px}.exam-frequency-years>.has-topic{background:#111;color:#fff;border-color:#111}.exam-frequency details{border-top:1px solid #deddda;padding-top:12px;margin-top:12px;font-size:12px}.exam-frequency summary{cursor:pointer;font-weight:600}.exam-frequency ul{padding:0;margin:12px 0 0;list-style:none}.exam-frequency-details li{display:grid;grid-template-columns:100px minmax(0,1fr);gap:12px;padding:12px 0;border-top:1px solid #e4e3e0}.exam-frequency-details li>div{display:flex;flex-wrap:wrap;gap:8px 12px}.exam-frequency a{color:inherit;text-decoration:underline;text-underline-offset:3px}.exam-frequency .exam-scoring-link{color:#777;font-size:11px;width:100%}.exam-frequency-method{color:#666;line-height:1.7}.exam-frequency-method p{font-size:12px;margin:12px 0}.exam-frequency-method li{padding:4px 0}.exam-frequency-note{color:#777;font-size:11px;line-height:1.6;margin:16px 0 0}@media(max-width:680px){.exam-frequency{padding:16px}.exam-frequency-result{align-items:flex-start;gap:12px}.exam-frequency-result>strong{font-size:40px}.exam-frequency-details li{grid-template-columns:1fr;gap:8px}}.open-self-assessment{margin:28px 0;border-top:1px solid #ccc;padding-top:20px}.self-assessment-content{margin-top:24px;max-width:900px}.self-assessment-content p{line-height:1.65;white-space:pre-line}.self-assessment-content h3{margin-top:26px}.self-assessment-content details{margin:20px 0}.self-assessment-content img{display:block;max-width:100%;height:auto;margin:16px 0}.self-assessment-points{display:flex;gap:10px;flex-wrap:wrap}.self-assessment-points button{min-width:80px;padding:14px 20px;background:#fff;border:1px solid #999}.self-assessment-points button[aria-pressed=true]{background:#111;color:#fff;border-color:#111}.missing-rubric{padding:14px;background:#f2f1ef;border:1px solid #ccc}.open-self-assessment>.outline-button{border:1px solid #999;background:transparent;padding:13px 20px;font:inherit;color:inherit;cursor:pointer}.self-assessment-content a{color:inherit;text-underline-offset:3px}.test-practice-layout{display:grid;grid-template-columns:minmax(0,1fr) 322px;margin-top:28px}.test-practice-main{min-width:0;padding-right:40px}.test-practice-navigator{min-width:0}.test-practice-navigator .test-task-navigation{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin:0;max-height:60vh;overflow-y:auto}.test-practice-navigator .test-task-navigation button{width:100%}.test-practice-main .practice-answers{max-width:none}.test-practice-main .answer-option{width:100%;text-align:left}@media(max-width:900px){.test-practice-layout{grid-template-columns:minmax(0,1fr)}.test-practice-main{padding-right:0}.test-practice-navigator{margin-top:30px;border-left:0;border-top:1px solid #d6d5d2;padding:24px}.test-practice-navigator .test-task-navigation{grid-template-columns:repeat(auto-fill,minmax(36px,1fr));max-height:240px}}.students-table article{grid-template-columns:42px minmax(0,1fr) 55px 155px 190px}.student-access{display:grid;gap:8px}.student-access label,.nickname-form label{display:grid;gap:6px;font-size:13px}.student-access select,.nickname-form input{min-width:0;width:100%;padding:10px;border:1px solid #9b9b9b;background:transparent;color:inherit;font:inherit}.students-table .student-nickname{color:#222;overflow-wrap:anywhere}.home-subtitle{overflow-wrap:anywhere}.student-access .outline-button{width:100%;padding:10px;font-size:13px}.student-access button:disabled{opacity:.5;cursor:wait}@media(max-width:1000px){.students-table article{grid-template-columns:42px minmax(0,1fr) 55px}.students-table article>span{display:none}.student-access{grid-column:2 / -1;justify-items:start}.student-access .outline-button{width:auto}}.test-modal{position:fixed;top:0;right:0;bottom:0;left:0;margin:auto;width:min(560px,calc(100vw - 32px));max-height:calc(100dvh - 32px);overflow:auto;padding:32px;border:1px solid #111;background:#faf9f7;color:#111;box-sizing:border-box}.test-modal::backdrop{background:#0000008c}.test-modal h2{margin:0 0 20px;font-size:28px}.test-modal p{line-height:1.6}.test-modal button{margin:12px 12px 0 0}.test-modal-percent{display:block;font-size:64px;line-height:1.2;margin-bottom:20px}.test-modal-actions{display:flex;flex-wrap:wrap}@media(max-width:680px){.test-modal{padding:24px}}.task-number-result{display:flex;flex-direction:column;align-items:flex-start;gap:8px;width:100%;padding:18px 16px;border:0;border-bottom:1px solid #d2d1ce;background:transparent;color:#111;text-align:left;cursor:pointer;font:inherit}.task-number-result:hover,.task-number-result:focus-visible{background:#eeedea;outline:2px solid #111;outline-offset:-2px}.task-number-result strong{font-family:DM Mono,monospace;font-size:15px}.task-number-result span{font-size:14px}.task-number-result small{color:#666;font-size:12px}