@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;650;700;750;800&display=swap');

:root{--blue:#1764ff;--blue-dark:#084bd7;--ink:#12203c;--muted:#7a8499;--line:#e9edf5;--surface:#f7f9fd;--green:#0cba91;--purple:#9956f6;--pink:#ff547d;--orange:#ffac44;--radius:16px;--shadow:0 8px 35px #1a3e7910}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;color:var(--ink);font-family:Manrope,Arial,sans-serif;font-size:16px;line-height:1.6;background:#fff}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #90b7ff;outline-offset:4px}button,a{touch-action:manipulation}input:focus,select:focus{outline:2px solid #9bbdff;outline-offset:2px}svg{display:block}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.25;letter-spacing:-.04em}h2{font-size:37px;font-weight:800}h3{font-size:20px;letter-spacing:-.025em}p{color:var(--muted)}.wrap{max-width:1360px;margin:auto;padding:0 32px}.brand{display:flex;align-items:center;gap:11px;font-size:22px;font-weight:800;letter-spacing:-.045em;white-space:nowrap}.logo{width:35px;height:35px;display:grid;place-items:center;background:var(--blue);border-radius:12px;box-shadow:0 5px 13px #1764ff25;color:white;transform:rotate(-7deg)}.logo svg{width:23px;height:23px;transform:rotate(7deg)}.brand small{font-size:14px;padding:3px 7px;border-radius:6px;margin-left:2px;letter-spacing:0;background:#eef3ff;color:var(--blue)}.button{border:0;border-radius:9px;padding:13px 21px;display:inline-flex;align-items:center;justify-content:center;gap:12px;background:var(--blue);color:white;font-weight:700;line-height:1.5;transition:background .15s,transform .15s,box-shadow .15s;box-shadow:0 4px 10px #1764ff13}.button:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 6px 18px #1764ff25}.button.secondary{border:1px solid var(--line);background:white;color:var(--ink);box-shadow:none}.button.secondary:hover{border-color:#b6ccf9;background:#f5f8ff}.button.small{padding:10px 17px;font-size:15px}.button.ghost{background:transparent;box-shadow:none;color:var(--blue)}.button.danger{background:#fff0f3;color:var(--pink);box-shadow:none}.icon{width:21px;height:21px;flex:none}.icon-box{width:48px;height:48px;display:grid;place-items:center;border-radius:13px;color:var(--blue);background:#edf3ff;flex:none}.icon-box .icon{width:24px;height:24px}.icon-box.purple{color:var(--purple);background:#f3edff}.icon-box.green{color:var(--green);background:#e6f9f3}.icon-box.pink{color:var(--pink);background:#fff0f4}.icon-box.orange{color:#f39522;background:#fff4e6}.link{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:700;font-size:15px}.pill{display:inline-flex;align-items:center;gap:7px;background:#edf3ff;color:var(--blue);border-radius:50px;padding:6px 12px;font-size:14px;font-weight:750;letter-spacing:.01em}.pill.green{color:#09a77d;background:#e9f9f3}.pill.purple{color:var(--purple);background:#f2edff}.pill.pink{color:var(--pink);background:#fff0f4}.dot{width:6px;height:6px;border-radius:50%;background:currentColor}.muted{color:var(--muted)}

/* Public website */
.site-header{height:88px;display:flex;align-items:center;border-bottom:1px solid #f1f4fa;background:#ffffffee;position:sticky;top:0;z-index:30;backdrop-filter:blur(12px)}.header-inner{width:100%;display:flex;align-items:center;justify-content:space-between;gap:25px}.site-nav{display:flex;align-items:center;gap:31px;font-size:15px;font-weight:650;color:#59647b}.site-nav a:hover{color:var(--blue)}.header-actions{display:flex;gap:7px;align-items:center}.hero{padding:65px 0 29px;overflow:hidden;background:radial-gradient(ellipse at 75% 32%,#edf3ff 0,transparent 47%),linear-gradient(#fff,#fdfefe)}.hero-grid{display:grid;grid-template-columns:1.08fr 1fr;gap:40px;align-items:center;min-height:490px}.hero h1{font-size:clamp(44px,4.5vw,64px);font-weight:800;line-height:1.16;margin:22px 0;letter-spacing:-.055em}.hero h1 span{color:var(--blue)}.hero-description{max-width:460px;font-size:17px;line-height:1.9;margin-bottom:28px;color:#768198}.hero-actions{display:flex;gap:12px}.hero-actions .button{padding:14px 23px}.hero-note{display:flex;align-items:center;gap:7px;font-size:13px;color:#909aae;margin-top:15px}.hero-note .icon{width:13px;height:13px}.hero-visual{height:500px;position:relative;display:flex;align-items:center;justify-content:center}.hero-orbit{position:absolute;inset:2px 15px 2px -15px;background:#edf3ff80;border-radius:46% 54% 60% 40%/40% 30% 70% 60%;transform:rotate(-17deg)}.hero-orbit:after{content:'';position:absolute;border:1px solid #dce7ff88;border-radius:50%;inset:20px;transform:translate(25px,-10px)}.math-doodle{font-family:Georgia,serif;font-style:italic;position:absolute;color:#afc8ff;font-size:41px;line-height:1;user-select:none}.doodle-one{top:20px;right:19px;transform:rotate(12deg)}.doodle-two{bottom:65px;left:0;transform:rotate(-12deg)}.doodle-three{bottom:15px;right:31px;font-size:31px}.example-card{position:relative;background:white;border:1px solid #edf1f9;width:310px;border-radius:20px;padding:25px 24px 21px;box-shadow:0 18px 60px #1764ff16;transform:rotate(-7deg);margin-right:45px}.example-top{display:flex;justify-content:space-between;font-size:13px;align-items:center;color:var(--muted);margin-bottom:21px}.example-top span:first-child{color:var(--blue);font-weight:700}.example-question{font-family:Georgia,serif;font-size:21px;line-height:1.65;color:var(--ink);margin-bottom:18px}.hero-options{display:grid;gap:7px;margin:0 0 18px}.option{background:#fff;border:1px solid var(--line);border-radius:8px;min-height:45px;display:flex;align-items:center;gap:14px;padding:10px 14px;text-align:left;font-weight:650;transition:border-color .15s,background .15s;width:100%}.option:hover{background:#f8faff;border-color:#c9d9fb}.option.selected{border-color:#80aaff;background:#f0f5ff;color:var(--blue)}.option.correct{border-color:#55cba8;background:#edf9f3;color:#078966}.option.incorrect{border-color:#ffa8b8;background:#fff3f6;color:#de395d}.option-letter{width:24px;height:24px;background:#f2f4f8;color:#637088;border-radius:50%;display:grid;place-items:center;font-size:14px;font-weight:800;flex:none}.selected .option-letter{background:var(--blue);color:white}.correct .option-letter{background:var(--green);color:white}.incorrect .option-letter{background:var(--pink);color:white}.hero-options .option{min-height:33px;padding:6px 9px;font-size:14px}.hero-options .option-letter{width:20px;height:20px;font-size:12px}.example-card .button{width:100%;font-size:14px;padding:11px}.hero-answer{font-size:14px;color:#079b75;margin:11px 0 0}.float-tag{position:absolute;display:flex;align-items:center;gap:10px;font-size:13px;font-weight:700;line-height:1.5;background:#ffffffee;border:1px solid #f0f3fa;box-shadow:0 8px 22px #284b7610;padding:11px 14px;border-radius:12px;right:-6px;z-index:2;backdrop-filter:blur(8px)}.float-tag .icon-box{width:33px;height:33px;border-radius:10px}.float-tag .icon{width:18px;height:18px}.tag-one{top:111px}.tag-two{top:173px;right:-23px}.tag-three{top:235px}.hero-graph{position:absolute;width:115px;height:115px;bottom:48px;right:-11px;opacity:.5}.feature-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;padding:32px 0 25px;margin-top:6px;border-top:1px solid #eaf0f8}.strip-item{display:flex;align-items:center;gap:12px;line-height:1.6;font-size:14px;font-weight:650}.strip-item .icon-box{width:39px;height:39px;border-radius:50%}.strip-item .icon{width:19px;height:19px}.benefits-section{padding:73px 0 67px;background:white}.section-heading{text-align:center;margin-bottom:41px}.section-heading h2{margin-bottom:11px}.section-heading p{font-size:16px}.benefits-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}.benefit{padding:0 30px;border-left:1px solid var(--line)}.benefit:first-child{padding-left:9px;border-left:0}.benefit:last-child{padding-right:0}.benefit .icon-box{border-radius:50%;width:49px;height:49px;margin-bottom:21px}.benefit h3{font-size:17px;margin-bottom:10px}.benefit p{font-size:15px;line-height:1.8;max-width:220px;margin-bottom:0}.topics-section{padding:56px 0 67px;background:#f9fbfe;border-top:1px solid #f0f4fa;border-bottom:1px solid #f0f4fa}.section-row{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:28px}.section-row h2{margin:0;font-size:31px}.section-row p{margin:7px 0 0;font-size:15px}.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.topic-card{border:1px solid var(--line);border-radius:12px;background:white;display:flex;align-items:flex-start;gap:16px;padding:23px 20px;text-align:left;transition:transform .2s,border-color .2s,box-shadow .2s;position:relative;width:100%}.topic-card:hover{border-color:#b3cdff;transform:translateY(-3px);box-shadow:var(--shadow)}.topic-card h3{font-size:16px;margin:0 17px 6px 0}.topic-card p{font-size:14px;margin:0 0 12px;line-height:1.6;max-width:210px}.topic-card .topic-count{font-size:12px;border:1px solid var(--line);padding:3px 7px;border-radius:5px;color:#6f7b90;font-weight:650}.topic-arrow{position:absolute;right:16px;top:22px;color:#a6b2c8;opacity:0;transition:opacity .2s}.topic-card:hover .topic-arrow{opacity:1}.how-section{padding:73px 0}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}.step-index{font-size:15px;font-weight:800;color:var(--blue);background:#edf3ff;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;margin-bottom:16px}.step h3{font-size:20px}.step p{font-size:15px;line-height:1.8}.cta-panel{background:#edf3ff;border:1px solid #dfebff;border-radius:20px;padding:39px 43px;display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:44px;position:relative;overflow:hidden}.cta-panel h2{font-size:29px;margin:0 0 8px}.cta-panel p{margin:0;font-size:15px}.cta-panel .button{flex:none}.faq-section{padding:5px 0 70px}.faq-container{max-width:760px;margin:auto}.faq-container .section-heading{margin-bottom:27px}.faq-container details{border-bottom:1px solid var(--line);padding:18px 0}.faq-container summary{display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-size:16px;font-weight:700;list-style:none}.faq-container summary::-webkit-details-marker{display:none}.faq-container summary:after{content:'+';font-size:25px;font-weight:400;color:var(--blue)}.faq-container details[open] summary:after{content:'−'}.faq-container details p{margin:14px 35px 0 0;font-size:15px;line-height:1.8}.site-footer{border-top:1px solid var(--line);padding:27px 0}.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:20px}.footer-inner .brand{font-size:18px}.footer-inner .logo{height:29px;width:29px;border-radius:9px}.footer-inner p{font-size:13px;margin:0}.footer-inner .link{font-size:14px}

/* Personal workspace */
.workspace{min-height:100vh;background:var(--surface);display:grid;grid-template-columns:250px minmax(0,1fr)}.sidebar{padding:27px 17px 21px;background:#fff;border-right:1px solid var(--line);position:fixed;inset:0 auto 0 0;width:250px;display:flex;flex-direction:column;z-index:25}.sidebar .brand{font-size:21px;margin:0 14px 35px}.sidebar .logo{width:30px;height:30px;border-radius:10px}.sidebar .logo svg{width:20px;height:20px}.sidebar-label{font-size:12px;font-weight:750;letter-spacing:.11em;color:#a2aabe;padding:0 15px;margin-bottom:12px}.side-nav{display:grid;gap:6px}.side-link{display:flex;align-items:center;gap:13px;border:0;border-radius:8px;padding:12px 15px;background:transparent;font-size:15px;font-weight:650;color:#7b8498;text-align:left;width:100%}.side-link .icon{width:18px;height:18px}.side-link:hover{color:var(--blue);background:#f5f8ff}.side-link.active{color:var(--blue);background:#eaf1ff}.side-link.active .icon{stroke-width:2.3}.side-bottom{margin-top:auto}.sidebar-tip{margin:25px 7px 17px;background:#f5f8ff;border:1px solid #eaf0ff;border-radius:12px;padding:17px 13px}.sidebar-tip .icon{color:var(--blue);width:20px;height:20px;margin-bottom:11px}.sidebar-tip strong{font-size:14px;display:block;margin-bottom:5px}.sidebar-tip p{font-size:13px;line-height:1.7;margin:0}.sidebar-tip .link{font-size:13px;margin-top:10px}.app-body{grid-column:2;min-width:0}.app-topbar{height:80px;display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid var(--line);padding:0 40px;background:#ffffffbb}.breadcrumb{font-size:15px;color:#7c879c;display:flex;align-items:center;gap:10px}.breadcrumb strong{color:var(--ink);font-weight:650}.breadcrumb .icon{width:14px;height:14px}.topbar-actions{display:flex;align-items:center;gap:20px}.icon-button{border:0;background:transparent;position:relative;padding:7px;display:grid;place-items:center;border-radius:7px;color:#7d899e}.icon-button:hover{background:#edf3ff;color:var(--blue)}.notification-dot{position:absolute;top:7px;right:7px;width:5px;height:5px;border-radius:50%;background:var(--blue);border:1px solid white}.avatar{width:32px;height:32px;border-radius:50%;background:#a069ec;display:grid;place-items:center;color:#fff;font-size:14px;font-weight:800;flex:none}.user-menu{display:flex;align-items:center;gap:10px;background:none;border:0;font-size:15px;font-weight:650}.user-menu .icon{width:13px;height:13px}.app-content{padding:33px 40px 40px;max-width:1500px;margin:auto}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-bottom:27px}.page-heading h1{font-size:32px;margin:0 0 6px;font-weight:800}.page-heading p{font-size:15px;margin:0}.goal-card{display:flex;align-items:center;gap:12px;background:#f1ebff88;border:1px solid #ede4fe;padding:11px 18px;border-radius:10px;min-width:171px;text-align:left}.goal-card .icon-box{width:32px;height:32px;background:#eee4ff;border-radius:10px}.goal-card .icon{width:19px;height:19px}.goal-card small{font-size:12px;color:#9784b0;display:block}.goal-card strong{font-size:15px;display:block}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:24px}.metric{padding:22px;border:1px solid var(--line);border-radius:12px;background:#fff}.metric .icon-box{width:37px;height:37px;border-radius:10px;margin-bottom:15px}.metric .icon{width:19px;height:19px}.metric strong{font-size:31px;letter-spacing:-.04em;line-height:1.2;display:block;margin-bottom:5px}.metric p{font-size:13px;margin:0}.metric .metric-trend{color:var(--green);font-size:12px;margin-top:12px}.dashboard-columns{display:grid;grid-template-columns:1.24fr 1fr;gap:22px}.panel{background:white;border:1px solid var(--line);border-radius:12px;padding:23px;min-width:0}.panel-header{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:24px}.panel-header h2{font-size:16px;letter-spacing:-.025em;margin:0}.panel-header .link{font-size:13px}.continue-card{position:relative;overflow:hidden}.continue-card .pill{font-size:12px;margin:2px 0 14px}.continue-card h3{font-size:25px;margin:0 0 7px}.continue-card p{font-size:14px;margin:0}.continue-lower{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-top:24px}.continue-progress{flex:1;max-width:230px}.progress-track{height:6px;border-radius:20px;background:#ecf0f7;overflow:hidden}.progress-track span{height:100%;display:block;background:var(--blue);border-radius:20px;transition:width .3s}.progress-caption{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:#929db1;margin-bottom:9px}.mini-topics{display:grid;gap:17px}.mini-topic .progress-caption{font-size:13px;color:#647088;margin-bottom:7px}.mini-topic .progress-caption strong{font-weight:650;color:#34415c}.mini-topic .progress-track{height:4px}.dashboard-lower{display:grid;grid-template-columns:1.24fr 1fr;gap:22px;margin-top:22px}.chart{width:100%;height:176px;overflow:visible}.chart text{fill:#939db0;font-family:Manrope,Arial,sans-serif;font-size:12px}.chart .chart-grid{stroke:#edf0f6;stroke-width:1}.chart-empty{height:175px;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;background:repeating-linear-gradient(to bottom,transparent 0,transparent 42px,#eef1f7 43px,#eef1f7 44px);border-radius:8px}.chart-empty .icon{color:#b2c6ec;width:30px;height:30px;margin-bottom:12px}.chart-empty strong{font-size:15px}.chart-empty p{font-size:13px;margin:5px 0 0}.week-days{display:flex;justify-content:space-between;gap:6px;margin:22px 0 20px}.day{display:flex;flex-direction:column;align-items:center;gap:9px;color:#99a3b7;font-size:12px}.day-circle{height:33px;width:33px;border:1px solid #edf0f6;border-radius:50%;background:#f9fafd;display:grid;place-items:center}.day-circle .icon{width:16px;height:16px}.day.done .day-circle{background:#e8f9f3;color:var(--green);border-color:#d3f1e5}.day.today .day-circle{border:1.5px solid var(--blue);color:var(--blue);background:#edf3ff}.week-note{font-size:13px;margin:0}.week-note strong{color:var(--ink)}.hint-banner{display:flex;gap:12px;align-items:center;border:1px solid #e1ebfc;background:#f0f5ff;border-radius:10px;padding:14px 19px;margin-top:24px;color:#6681b0;font-size:14px}.hint-banner .icon{color:var(--blue);width:17px;height:17px}.hint-banner .link{margin-left:auto;white-space:nowrap;font-size:13px}

/* Exercise */
.training-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:25px}.training-heading h1{font-size:26px;margin:0;display:flex;align-items:center;gap:12px}.training-heading h1 a{display:grid;place-items:center;border:1px solid var(--line);background:white;width:34px;height:34px;border-radius:8px}.training-heading h1 .icon{width:17px;height:17px}.training-grid{display:grid;grid-template-columns:minmax(0,1fr) 244px;gap:23px;align-items:start}.exercise-panel{padding:28px 31px}.exercise-progress{padding-bottom:25px;border-bottom:1px solid var(--line)}.exercise-progress .progress-caption{font-size:14px;color:#7a8499}.exercise-progress .progress-track{height:5px;margin-top:11px}.exercise-progress .progress-track span{background:var(--green)}.exercise-number{color:#9aa6ba;font-size:12px;text-transform:uppercase;letter-spacing:.12em;font-weight:700;margin:28px 0 13px}.exercise-question{font-size:25px;line-height:1.65;letter-spacing:-.02em;font-weight:650;margin:0 0 25px}.math{font-family:Georgia,'Times New Roman',serif;font-weight:500;font-style:italic;font-size:1.05em}.exercise-options{display:grid;gap:10px}.exercise-options .option{min-height:54px;font-size:16px}.exercise-options .option .icon{margin-left:auto;width:18px;height:18px}.exercise-footer{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:29px;padding-top:23px;border-top:1px solid var(--line)}.exercise-footer .button{font-size:14px}.exercise-aside{display:grid;gap:14px}.exercise-aside .panel{padding:22px}.exercise-detail{display:flex;gap:12px;margin-bottom:23px;align-items:flex-start}.exercise-detail:last-child{margin:0}.exercise-detail .icon-box{width:30px;height:30px;border-radius:9px}.exercise-detail .icon{width:16px;height:16px}.exercise-detail small{display:block;font-size:12px;color:#919aae;margin-bottom:4px}.exercise-detail strong{display:block;font-size:13px}.exercise-detail .pill{font-size:12px;padding:3px 8px}.aside-button{width:100%;display:flex;align-items:center;justify-content:center;gap:9px;padding:13px;background:white;border:1px solid var(--line);border-radius:9px;color:#7a859b;font-size:13px;font-weight:650}.aside-button .icon{height:15px;width:15px}.aside-button:hover,.aside-button.saved{color:var(--blue);background:#f0f5ff;border-color:#c7d9ff}.keyboard-tip{font-size:12px;line-height:1.8;text-align:center;margin:4px 5px;color:#a0a9bb}.keyboard-tip kbd{font-family:inherit;font-size:12px;background:#fff;border:1px solid #e7ebf2;border-radius:4px;padding:1px 4px}.feedback{border-radius:10px;padding:17px 19px;margin-top:20px;background:#eef9f5;border:1px solid #d3eee3}.feedback.wrong{background:#fff7f8;border-color:#ffe0e6}.feedback-heading{display:flex;align-items:center;gap:8px;color:#089b76;font-size:15px;font-weight:800;margin-bottom:8px}.feedback.wrong .feedback-heading{color:#e04768}.feedback-heading .icon{width:17px;height:17px}.feedback p{font-size:14px;line-height:1.85;margin:0;color:#647689}.feedback.wrong p{color:#8b6870}.question-map{display:flex;flex-wrap:wrap;gap:7px}.question-map button{width:27px;height:27px;border:1px solid var(--line);border-radius:6px;color:#8791a5;background:#f8fafd;font-size:12px}.question-map button.current{background:#eaf1ff;border-color:#a8c6ff;color:var(--blue)}.question-map button.correct{background:#e9f8f1;color:#089a75;border-color:#c7edde}.question-map button.incorrect{background:#fff0f3;color:var(--pink);border-color:#ffdae2}.question-map-label{font-size:12px;color:#9ca6b8;margin-bottom:12px}.result-panel{max-width:670px;text-align:center;margin:34px auto;padding:48px}.result-panel .icon-box{width:66px;height:66px;border-radius:50%;margin:0 auto 21px}.result-panel h1{font-size:35px;margin-bottom:10px}.result-panel p{font-size:16px}.result-score{font-size:75px;color:var(--blue);font-weight:800;letter-spacing:-.07em;margin:20px 0 0}.result-score span{font-size:26px;color:#a5b0c3}.result-actions{display:flex;justify-content:center;gap:12px;margin-top:25px}.result-review{margin-top:26px;border-top:1px solid var(--line);padding-top:17px}.result-review p{font-size:14px}

/* Topics, saved questions and statistics */
.filters{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:25px}.search{position:relative;max-width:330px;flex:1}.search .icon{position:absolute;left:13px;top:13px;width:16px;height:16px;color:#9aa5b8}.search input{width:100%;padding:11px 14px 11px 38px;border:1px solid var(--line);border-radius:8px;font-size:14px;background:white;color:var(--ink)}.select{padding:11px 14px;border:1px solid var(--line);background:white;border-radius:8px;font-size:14px;color:#69758b}.app-topic-card{flex-direction:column;gap:0;padding:24px}.topic-card-top{display:flex;justify-content:space-between;width:100%;align-items:center;margin-bottom:19px}.app-topic-card h3{font-size:20px}.app-topic-card p{font-size:14px;max-width:none;margin-bottom:23px}.app-topic-card .progress-caption{width:100%;margin-bottom:8px}.app-topic-card .progress-track{width:100%;margin-bottom:19px}.app-topic-card .link{margin-top:auto;width:100%;justify-content:space-between;font-size:14px}.app-topic-card .topic-count{border:0;padding:0;font-size:13px}.stats-metrics .metric{display:flex;gap:13px;align-items:center;padding:19px 17px}.stats-metrics .icon-box{margin:0;width:33px;height:33px}.stats-metrics .metric strong{font-size:21px;margin:3px 0 0}.stats-metrics .metric p{font-size:12px}.stats-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:22px}.stats-grid .chart{height:240px}.stats-grid .chart-empty{height:236px}.donut-content{display:flex;align-items:center;justify-content:center;gap:29px;min-height:230px}.donut{height:150px;width:150px;position:relative;border-radius:50%;background:#eff3f9;flex:none}.donut:after{content:'';position:absolute;inset:22px;background:white;border-radius:50%}.donut-center{position:absolute;inset:0;z-index:1;display:flex;align-items:center;justify-content:center;flex-direction:column}.donut-center strong{font-size:29px;letter-spacing:-.04em}.donut-center span{font-size:12px;color:#939eb1}.legend{display:grid;gap:13px;flex:1}.legend-item{display:flex;align-items:center;gap:7px;font-size:12px}.legend-item .dot{width:6px;height:6px}.legend-item b{margin-left:auto;font-weight:650;color:#7b879e}.history-panel{margin-top:22px}.history-table{width:100%;border-collapse:collapse;text-align:left;font-size:14px}.history-table th{font-weight:600;color:#99a2b4;padding:0 12px 12px;border-bottom:1px solid var(--line);font-size:12px}.history-table td{padding:15px 12px;border-bottom:1px solid #f0f2f7;color:#69758b}.history-table tbody tr:last-child td{border:0}.history-table .pill{font-size:12px;padding:4px 8px}.question-list{display:grid;gap:14px}.review-question{display:flex;align-items:center;gap:18px}.review-question .review-text{flex:1}.review-question small{display:block;font-size:12px;color:#8d99ae;margin-bottom:7px}.review-question h3{font-size:16px;letter-spacing:0;line-height:1.7;margin:0}.review-question .button{flex:none}.review-question .icon-button{flex:none}.empty-state{min-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px}.empty-state .icon-box{width:58px;height:58px;margin-bottom:19px;border-radius:50%}.empty-state h2{font-size:25px;margin-bottom:10px}.empty-state p{max-width:390px;font-size:15px;margin-bottom:22px}.profile-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:22px}.profile-form label,.modal-form label{display:block;font-weight:650;font-size:14px;margin-bottom:7px}.field{padding:12px 14px;border:1px solid #e3e9f2;border-radius:8px;width:100%;background:#fcfdff;color:var(--ink)}.field-group{margin-bottom:20px}.profile-avatar{display:flex;align-items:center;gap:16px;margin-bottom:27px}.profile-avatar .avatar{width:55px;height:55px;font-size:24px}.profile-avatar strong{font-size:20px}.profile-avatar p{font-size:13px;margin:3px 0 0}.profile-note{font-size:13px;line-height:1.9;margin:0 0 20px}.profile-form .button{font-size:15px}.profile-summary{display:grid;gap:18px}.profile-summary-line{display:flex;justify-content:space-between;font-size:14px;color:#8c97aa;border-bottom:1px solid var(--line);padding-bottom:15px}.profile-summary-line strong{color:var(--ink);font-weight:700}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Dialogs */
.modal-overlay{position:fixed;inset:0;z-index:100;background:#12203c45;backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;padding:22px}.modal{background:white;border-radius:20px;padding:35px;width:420px;max-width:100%;position:relative;box-shadow:0 20px 100px #12203c30}.modal-close{position:absolute;right:14px;top:14px}.modal .icon-box{margin-bottom:20px}.modal h2{font-size:29px;margin-bottom:11px}.modal p{font-size:15px;line-height:1.8;margin-bottom:23px}.modal .button{width:100%}.modal-form .field{margin-bottom:21px}.modal-note{font-size:12px!important;color:#98a2b4;text-align:center;margin:16px 0 0!important}.modal-actions{display:flex;gap:10px}.modal-actions .button{font-size:14px}.report-options{display:grid;gap:9px;margin-bottom:20px}.report-options label{display:flex;gap:10px;align-items:center;font-size:14px;padding:11px;border:1px solid var(--line);border-radius:7px}.report-options input{accent-color:var(--blue)}#toast{position:fixed;bottom:27px;left:50%;transform:translate(-50%,20px);background:#12203c;color:white;padding:12px 22px;border-radius:10px;box-shadow:0 8px 25px #12203c20;font-size:14px;z-index:150;opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;max-width:90%;text-align:center}#toast.visible{opacity:1;transform:translate(-50%,0)}

@media(min-width:1500px){.app-content{padding-top:42px}.dashboard-columns,.dashboard-lower{grid-template-columns:1.2fr 1fr}.hero-grid{gap:75px}.hero-visual{margin-right:5px}}
@media(max-width:1100px){.site-nav{gap:19px}.wrap{padding:0 25px}.hero-grid{gap:10px}.hero h1{font-size:51px}.float-tag{right:-14px}.tag-two{right:-20px}.hero-visual{transform:scale(.9);transform-origin:center}.hero-description{font-size:16px}.benefit{padding:0 20px}.sidebar{width:220px;padding:25px 13px}.sidebar .brand{margin-left:10px}.workspace{grid-template-columns:220px minmax(0,1fr)}.app-content{padding:28px 25px}.app-topbar{padding:0 25px}.metric{padding:17px}.metric strong{font-size:28px}.training-grid{grid-template-columns:minmax(0,1fr) 215px}.exercise-panel{padding:25px}.donut-content{gap:17px}.donut{width:127px;height:127px}.donut:after{inset:18px}.stats-metrics .metric{padding:16px 12px;gap:9px}.stats-metrics .icon-box{width:28px;height:28px}.stats-metrics .metric p{font-size:12px}.stats-metrics .metric strong{font-size:18px}.app-topic-card{padding:20px}.app-topic-card h3{font-size:17px}}
@media(max-width:900px){.site-nav{display:none}.hero-grid{grid-template-columns:1fr 1fr}.hero h1{font-size:43px}.hero-visual{transform:scale(.8);margin-left:-26px;margin-right:-35px}.hero-actions{flex-direction:column;align-items:flex-start;gap:9px}.hero-actions .button{font-size:14px}.hero-grid{min-height:440px}.hero{padding-top:25px}.feature-strip{gap:13px}.strip-item{font-size:13px;gap:9px}.topic-card{padding:18px 14px;gap:10px}.topic-card .icon-box{width:38px;height:38px}.topic-card h3{font-size:15px}.benefit{padding:0 16px}.benefit h3{font-size:16px}.benefit p{font-size:14px}.sidebar{width:76px;padding:25px 10px}.workspace{grid-template-columns:76px minmax(0,1fr)}.sidebar .brand{margin:0 auto 35px;justify-content:center}.sidebar .brand>span:last-child,.sidebar-label,.side-link>span,.sidebar-tip{display:none}.side-link{justify-content:center;padding:14px 10px}.sidebar .brand .logo{width:34px;height:34px}.app-content{padding:27px 25px}.app-topbar{height:72px}.metric-grid{gap:11px}.metric strong{font-size:25px}.metric p{font-size:12px}.panel{padding:19px}.training-grid{gap:15px;grid-template-columns:minmax(0,1fr) 185px}.exercise-aside .panel{padding:17px}.exercise-question{font-size:23px}.exercise-panel{padding:22px}.stats-grid{grid-template-columns:1fr}.donut-content{min-height:200px;gap:40px}.donut{width:160px;height:160px}.legend{max-width:230px}.legend-item{font-size:14px}.stats-metrics{grid-template-columns:repeat(2,1fr)}.stats-metrics .metric p{font-size:13px}.stats-metrics .metric strong{font-size:23px}.stats-metrics .icon-box{width:35px;height:35px}.app-topic-card{padding:20px}.profile-grid{grid-template-columns:1fr}}
@media(max-width:650px){body{font-size:16px}.wrap{padding:0 21px}.site-header{height:74px}.brand{font-size:20px;gap:9px}.logo{width:30px;height:30px;border-radius:10px}.header-actions .ghost{display:none}.header-actions .button{font-size:13px;padding:10px 13px}.hero{padding:32px 0 18px}.hero-grid{grid-template-columns:1fr;gap:0}.hero h1{font-size:45px;line-height:1.19;margin:19px 0}.hero-copy{max-width:430px;margin:auto;width:100%}.hero-description{font-size:16px;line-height:1.85;margin-bottom:23px;max-width:360px}.hero-actions{flex-direction:row;gap:8px}.hero-actions .button{padding:12px 15px;font-size:13px;gap:7px}.hero-actions .icon{width:16px;height:16px}.hero-note{font-size:12px}.hero-visual{height:410px;transform:scale(.85);margin:-5px -20px -13px;max-width:440px;justify-self:center;width:100%}.example-card{width:288px;margin-right:39px}.float-tag{right:-4px;font-size:12px;padding:9px 10px}.tag-one{top:80px}.tag-two{top:138px;right:-12px}.tag-three{top:196px}.hero-graph{bottom:10px;right:5px}.doodle-two{left:13px;bottom:20px}.doodle-three{bottom:-14px;right:51px}.doodle-one{top:-6px;right:21px}.feature-strip{grid-template-columns:repeat(2,1fr);gap:20px 14px;padding-top:25px;margin-top:14px}.strip-item{font-size:12px}.strip-item .icon-box{width:34px;height:34px}.benefits-section{padding:47px 0}.section-heading h2{font-size:31px}.section-heading p{font-size:14px}.section-heading{margin-bottom:29px}.benefits-grid{grid-template-columns:repeat(2,1fr);gap:26px 21px}.benefit,.benefit:first-child,.benefit:last-child{border:0;padding:0}.benefit .icon-box{margin-bottom:15px;width:43px;height:43px}.benefit h3{font-size:16px;margin-bottom:8px}.benefit p{font-size:13px}.topics-section{padding:39px 0 43px}.section-row{align-items:flex-start;margin-bottom:22px}.section-row h2{font-size:25px}.section-row .link{font-size:13px;white-space:nowrap;margin-top:6px}.section-row .link .icon{width:15px;height:15px}.topic-grid{grid-template-columns:repeat(2,1fr);gap:10px}.topic-card{padding:18px 14px;flex-direction:column;gap:13px}.topic-card .icon-box{width:39px;height:39px}.topic-card h3{font-size:15px;line-height:1.4;margin:0 0 5px}.topic-card p{font-size:12px;margin-bottom:10px}.topic-card .topic-count{font-size:12px}.how-section{padding:45px 0}.steps{gap:20px;grid-template-columns:1fr}.step{position:relative;padding-left:50px}.step-index{position:absolute;left:0;top:0}.step h3{font-size:17px;margin-bottom:8px}.step p{font-size:14px;margin:0;max-width:330px}.cta-panel{padding:27px 25px;flex-direction:column;align-items:flex-start;margin-top:30px}.cta-panel h2{font-size:26px}.cta-panel p{font-size:14px}.cta-panel .button{font-size:14px}.faq-section{padding-bottom:43px}.faq-container summary{font-size:15px;gap:12px}.faq-container details p{font-size:14px}.footer-inner{flex-wrap:wrap}.footer-inner p{width:100%;order:3}.workspace{grid-template-columns:1fr}.sidebar{position:static;width:100%;height:auto;padding:18px 17px 10px;border-right:0;border-bottom:1px solid var(--line);gap:17px}.sidebar .brand{margin:0;justify-content:flex-start}.sidebar .brand>span:last-child{display:inline;font-size:20px}.sidebar .brand .logo{height:29px;width:29px}.sidebar-label,.side-bottom{display:none}.side-nav{display:flex;gap:5px;overflow:auto;scrollbar-width:none;padding-bottom:3px}.side-link{padding:9px 12px;gap:7px;flex:none;font-size:13px}.side-link .icon{width:15px;height:15px}.side-link>span{display:inline}.side-link[data-route="profile"]{display:none}.app-body{grid-column:1}.app-topbar{height:56px;padding:0 21px}.breadcrumb{font-size:13px}.topbar-actions{gap:11px}.avatar{width:27px;height:27px;font-size:12px}.user-menu{font-size:13px;gap:7px}.app-content{padding:24px 20px 35px}.page-heading{gap:12px;margin-bottom:22px;align-items:flex-start}.page-heading h1{font-size:28px}.page-heading p{font-size:13px;max-width:210px}.goal-card{min-width:116px;padding:9px;gap:7px;margin-top:1px}.goal-card .icon-box{width:25px;height:25px}.goal-card .icon{width:16px;height:16px}.goal-card strong{font-size:13px}.goal-card small{font-size:12px}.metric-grid{grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:18px}.metric{padding:17px}.metric .icon-box{width:32px;height:32px;margin-bottom:12px}.metric strong{font-size:29px}.metric p{font-size:12px}.metric .metric-trend{display:none}.dashboard-columns,.dashboard-lower{grid-template-columns:1fr;gap:17px}.dashboard-lower{margin-top:17px}.panel{padding:20px}.panel-header h2{font-size:16px}.panel-header .link{font-size:12px}.continue-card h3{font-size:24px}.continue-lower{gap:15px}.continue-lower .button{font-size:13px;padding:10px 15px}.week-days{justify-content:space-around}.hint-banner{font-size:13px;padding:13px;align-items:flex-start;flex-wrap:wrap;gap:9px}.hint-banner .link{margin-left:26px}.training-heading{margin-bottom:20px}.training-heading h1{font-size:24px}.training-heading>.button{padding:9px 12px;font-size:13px}.training-grid{grid-template-columns:1fr;gap:17px}.exercise-panel{padding:21px 19px}.exercise-question{font-size:22px}.exercise-number{margin-top:23px}.exercise-options .option{font-size:15px;min-height:49px}.exercise-footer .button{padding:10px 13px;font-size:13px;gap:7px}.exercise-footer .icon{width:15px;height:15px}.exercise-aside{display:grid;grid-template-columns:1fr 1fr;gap:10px}.exercise-aside>.panel:first-child{grid-column:1/-1;display:flex;justify-content:space-between;gap:10px;padding:16px}.exercise-detail{margin:0;gap:7px}.exercise-detail .icon-box{width:25px;height:25px;border-radius:7px}.exercise-detail small{font-size:12px}.exercise-detail strong{font-size:12px}.exercise-aside>.panel:last-of-type{grid-column:1/-1}.keyboard-tip{display:none}.result-panel{padding:33px 22px;margin:0}.result-panel h1{font-size:29px}.result-actions{flex-direction:column}.filters{gap:9px}.search{max-width:none}.select{font-size:13px;padding:11px 9px;max-width:145px}.app-topic-card{padding:18px 14px;gap:0}.app-topic-card h3{font-size:16px}.app-topic-card p{font-size:12px;min-height:42px;margin-bottom:17px}.app-topic-card .topic-count{font-size:12px}.app-topic-card .link{font-size:13px}.app-topic-card .progress-caption{font-size:12px}.topic-card-top{margin-bottom:17px}.topic-card-top .pill{font-size:12px;padding:4px 6px}.stats-grid{gap:17px}.stats-grid .chart{height:180px}.stats-grid .chart-empty{height:180px}.donut-content{gap:18px;min-height:200px}.donut{width:130px;height:130px}.donut:after{inset:19px}.legend-item{font-size:12px}.legend{gap:12px}.stats-metrics .metric{padding:15px 12px}.stats-metrics .metric p{font-size:12px}.stats-metrics .metric strong{font-size:20px}.stats-metrics .icon-box{width:29px;height:29px}.history-panel{overflow:auto}.history-table{min-width:440px}.history-table th,.history-table td{padding-left:6px;padding-right:6px;font-size:12px}.review-question{flex-wrap:wrap;gap:12px}.review-question>.icon-box{display:none}.review-question .review-text{flex-basis:80%}.review-question h3{font-size:15px}.review-question .button{margin-left:auto}.review-question .icon-button{order:-1;margin-left:auto}.review-question small{font-size:12px}.profile-grid{gap:17px}.modal{padding:29px 24px}.modal h2{font-size:26px}.modal p{font-size:14px}}
@media(max-width:650px){.workspace{grid-template-columns:minmax(0,1fr)}.sidebar,.side-nav{min-width:0}.side-link{width:auto}.side-nav{width:100%}}

/* Comfortable reading size and larger controls. */
.button{min-height:48px;padding:15px 24px}
.button.small{min-height:44px;padding:12px 19px}
.sidebar-label{font-size:10px}
.side-link{min-height:48px;padding-top:14px;padding-bottom:14px}
.side-link .icon{width:21px;height:21px}
.panel{padding:27px}
.metric{padding:25px}
.metric .icon-box{width:44px;height:44px}
.metric .icon{width:23px;height:23px}
.exercise-options .option{min-height:62px;padding:14px 17px}
.option-letter{width:29px;height:29px}
.aside-button{min-height:48px}
.field,.search input,.select{min-height:46px}
.search .icon{top:15px}
.modal{width:470px}
.donut-content{flex-wrap:wrap}
.legend{min-width:160px}
.stats-metrics .metric p{line-height:1.6}
@media(max-width:1100px){
 .metric-grid,.stats-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
 .stats-grid{grid-template-columns:minmax(0,1fr)}
 #topic-results{grid-template-columns:repeat(2,minmax(0,1fr))}
 .panel{padding:23px}.metric{padding:22px}
 .continue-lower{flex-wrap:wrap}.continue-progress{min-width:150px}
 .training-grid{grid-template-columns:minmax(0,1fr) 235px}
}
@media(max-width:900px){
 .dashboard-columns,.dashboard-lower{grid-template-columns:minmax(0,1fr)}
 .training-grid{grid-template-columns:minmax(0,1fr)}
 .exercise-aside{grid-template-columns:repeat(2,minmax(0,1fr))}
 .exercise-aside>.panel{grid-column:1/-1}
 .exercise-aside>.panel:first-child{display:flex;justify-content:space-between;gap:16px}
 .exercise-detail{margin:0}.keyboard-tip{grid-column:1/-1}
}
@media(max-width:650px){
 .header-inner{gap:12px}.site-header .brand{font-size:18px}
 .hero h1{font-size:42px}.hero-actions{flex-wrap:wrap}
 .header-actions .button{padding:10px 13px}
 .button{min-height:46px}.button.small{min-height:44px;padding:11px 15px}
 .side-link{min-height:44px;padding:10px 13px}
 .side-link .icon{width:18px;height:18px}
 .page-heading{flex-wrap:wrap}.page-heading p{max-width:none}
 .goal-card{min-width:140px}.goal-card strong{font-size:14px}.goal-card small{font-size:12px}
 .metric{padding:20px}.metric strong{font-size:30px}.metric p{font-size:13px}
 .panel{padding:22px}.panel-header{flex-wrap:wrap}
 .exercise-options .option{min-height:56px;font-size:16px}
 .exercise-footer{flex-wrap:wrap}.exercise-footer .button{font-size:13px}
 .exercise-detail{gap:8px}.exercise-detail strong{font-size:12px}
 .exercise-aside>.panel:first-child{flex-wrap:wrap;gap:17px;padding:20px}
 #topic-results{grid-template-columns:minmax(0,1fr)}
 .app-topic-card h3{font-size:20px}.app-topic-card p{font-size:14px;min-height:0}
 .app-topic-card .progress-caption{font-size:13px}.app-topic-card .link{font-size:14px}
 .app-topic-card .topic-count{font-size:13px}
 .stats-metrics .metric p{font-size:12px}.stats-metrics .metric strong{font-size:20px}
 .legend-item{font-size:12px}.donut-content{gap:22px}.legend{min-width:150px}
 .filters{flex-wrap:wrap}.search{flex-basis:100%}.select{max-width:none;font-size:13px}
 .topic-card-top{gap:15px}.modal{padding:30px 25px}
}

/* Hero: deliberate line breaks, connected benefits and legible secondary copy. */
.hero{padding:48px 0 22px}
.hero-grid{min-height:460px}
.hero-visual{height:470px}
.hero h1{font-size:clamp(40px,4.6vw,60px);line-height:1.13;margin:20px 0}
.hero h1 .hero-line{display:block;white-space:nowrap;color:var(--ink)}
.hero h1 .hero-line:last-child{color:var(--blue)}
.hero-note{color:#68758b}
.hero-note .icon{color:#68758b}
.example-top span:last-child{color:#68758b;font-weight:650}
.feature-strip{margin-top:0;padding:22px 0 23px;gap:20px}
.strip-item{font-size:16px;gap:13px;line-height:1.5}
.strip-item .icon-box{width:43px;height:43px}
.strip-item .icon{width:21px;height:21px}
@media(min-width:651px) and (max-width:900px){
 .hero h1{font-size:clamp(34px,4.6vw,41px)}
 .strip-item{font-size:14px;gap:10px}
 .strip-item .icon-box{width:39px;height:39px}
}
@media(max-width:650px){
 .hero{padding:30px 0 20px}
 .hero h1{font-size:clamp(32px,10vw,42px);margin:18px 0;line-height:1.15}
 .hero-grid{min-height:0}
 .hero-visual{height:410px;margin-bottom:-18px}
 .feature-strip{margin-top:4px;padding-top:18px;gap:18px 13px}
 .strip-item{font-size:14px;gap:10px}
 .strip-item .icon-box{width:38px;height:38px}
 .hero-note{font-size:12px}
}
/* A working exercise, with a quiet grid instead of a decorative mockup. */
.hero{background:#fdfefe;padding:44px 0 22px}
.hero-grid{grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);gap:48px;min-height:0}
.hero h1{font-size:clamp(40px,4.2vw,56px);line-height:1.16;letter-spacing:-.045em;max-width:610px;margin:20px 0}
.hero h1 span{white-space:nowrap}
.hero-description{font-size:18px;line-height:1.75;max-width:470px;color:#68758b}
.hero-visual{height:auto;min-height:0;width:100%;max-width:100%;margin:0;transform:none;padding:16px;background-image:linear-gradient(#dfe5ef70 1px,transparent 1px),linear-gradient(90deg,#dfe5ef70 1px,transparent 1px);background-size:36px 36px;border-radius:18px}
.example-card{width:100%;max-width:470px;transform:none;margin:0 auto;border:1px solid #dde4ef;border-radius:14px;padding:22px;background:#fff;box-shadow:0 4px 18px #12203c09}
.example-top{font-size:12px;margin-bottom:12px;gap:15px}
.example-top span:first-child{color:#536884}
.hero-task-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;color:#78859a;font-size:12px}
.hero-task-meta .pill{font-size:10px;padding:4px 9px}
.example-question{font-family:Manrope,Arial,sans-serif;font-size:20px;font-weight:650;letter-spacing:-.02em;line-height:1.6;margin-bottom:12px}
.hero-choice-hint{font-size:12px;margin:0 0 10px;color:#738198}
.hero-options{gap:8px;margin:0 0 15px}
.hero-options .option{min-height:42px;padding:8px 12px;font-size:15px;gap:12px}
.hero-options .option-letter{height:25px;width:25px;font-size:12px}
.choice-marker{margin-left:auto;width:16px;height:16px;border:1.5px solid #c5cfdf;border-radius:50%;flex:none}
.selected .choice-marker{border-color:var(--blue);background:var(--blue);box-shadow:inset 0 0 0 3px white}
.correct .choice-marker{border-color:var(--green);background:var(--green);box-shadow:inset 0 0 0 3px white}
.incorrect .choice-marker{border-color:var(--pink);background:var(--pink);box-shadow:inset 0 0 0 3px white}
.hero-options .option:disabled{opacity:1;cursor:default}
.example-card .button{min-height:46px;font-size:14px;padding:11px 16px}
.example-card .button:disabled{opacity:1;background:#edf1f7;color:#63738c;box-shadow:none;transform:none}
.hero-task-note{display:flex;align-items:center;justify-content:center;gap:6px;font-size:11px;color:#7b879a;margin:10px 0 0}
.hero-task-note .icon{width:13px;height:13px}
.hero-result{margin:0 0 14px;padding:12px 14px;background:#eff9f4;border:1px solid #d8efe3;border-radius:8px;color:#0c8e6c}
.hero-result.wrong{background:#fff5f7;border-color:#f9dde4;color:#c94366}
.hero-result strong{display:flex;align-items:center;gap:7px;font-size:13px;margin-bottom:4px}
.hero-result .icon{width:16px;height:16px}
.hero-result>span{display:block;font-size:11px;color:#64758a}
@media(min-width:651px) and (max-width:900px){
 .hero-grid{gap:24px}
 .hero h1{font-size:clamp(34px,4.8vw,43px)}
 .hero-description{font-size:16px}
 .hero-visual{padding:10px}
 .example-card{padding:19px}
 .hero-task-meta{flex-wrap:wrap;gap:8px}
 .example-question{font-size:18px}
}
@media(max-width:650px){
 .hero{padding:30px 0 20px}
 .hero-grid{grid-template-columns:minmax(0,1fr);gap:25px}
 .hero h1{font-size:clamp(32px,9.6vw,40px);line-height:1.18;max-width:none;margin:18px 0}
 .hero-copy{max-width:430px}
 .hero-description{font-size:16px;line-height:1.75;max-width:none}
 .hero-visual{height:auto;padding:10px;margin:0;max-width:430px;transform:none}
 .example-card{width:100%;padding:20px 17px;border-radius:12px;margin:0}
 .example-question{font-size:19px}
 .hero-options .option{min-height:45px;font-size:15px}
 .hero-task-meta{font-size:11px;gap:8px}
 .feature-strip{margin-top:5px;padding-top:20px}
}
/* Keep the introduction stable while the exercise changes. */
.hero-grid{align-items:start}
.hero-copy{padding-top:80px}
.hero-result{min-height:70px}
.hero-result.pending{background:#f7f9fc;border-color:#e8edf5;color:#63738c}
.hero-options,.hero-result{overflow-anchor:none}
@media(min-width:651px) and (max-width:900px){.hero-copy{padding-top:54px}}
@media(max-width:650px){.hero-copy{padding-top:0}.hero-result{min-height:108px}}
/* Soft blue atmosphere; formulas stay behind the interactive content. */
.hero{position:relative;isolation:isolate;background:radial-gradient(ellipse 58% 68% at 88% 22%,#dceaffbb 0,transparent 74%),radial-gradient(ellipse 43% 58% at 2% 85%,#e9f2ffcc 0,transparent 76%),#fdfefe}
.hero>.wrap{position:relative;z-index:1}
.hero-math{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none;user-select:none;color:#8aafe0;font-family:Georgia,'Times New Roman',serif;font-style:italic;line-height:1;opacity:.35}
.hero-math>span{position:absolute;white-space:nowrap}
.hero-math .formula-one{top:25px;left:5%;font-size:42px;transform:rotate(-9deg)}
.hero-math .formula-two{top:42px;right:2.5%;font-size:31px;transform:rotate(8deg)}
.hero-math .formula-three{bottom:127px;left:3.8%;font-size:34px;transform:rotate(-7deg)}
.hero-math .formula-four{bottom:100px;left:48%;font-size:29px;transform:rotate(8deg)}
.hero-visual{background-image:linear-gradient(#cfdff050 1px,transparent 1px),linear-gradient(90deg,#cfdff050 1px,transparent 1px)}
@media(max-width:900px){.hero-math{opacity:.27}.hero-math .formula-three{left:5%;bottom:100px}.hero-math .formula-four{display:none}}
@media(max-width:650px){
 .hero{background:radial-gradient(ellipse 95% 40% at 100% 22%,#e2edffb3 0,transparent 78%),radial-gradient(ellipse 100% 35% at 0 77%,#eef5ff 0,transparent 80%),#fdfefe}
 .hero-math .formula-one{top:9px;left:5%;font-size:25px}
 .hero-math .formula-two{top:45%;right:1%;font-size:25px}
 .hero-math .formula-three{display:none}
}
/* Fade the decorative background to the next section's exact white. */
.hero::after{content:'';position:absolute;inset:auto 0 0;height:220px;z-index:0;pointer-events:none;background:linear-gradient(to bottom,#ffffff00 0%,#ffffff80 42%,#ffffff 100%)}
@media(max-width:650px){.hero::after{height:180px}}
/* Comfortable question navigation and a clearly labelled exam placeholder. */
.training-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.training-navigation{margin-bottom:23px;padding:22px 25px}
.training-navigation-header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:17px}
.training-navigation-header h2{font-size:17px;margin:0 0 5px;letter-spacing:-.02em}
.training-navigation-header p{font-size:12px;margin:0;color:#738198}
.training-navigation-header .pill{white-space:nowrap;font-size:12px}
.question-map{display:flex;flex-wrap:wrap;gap:10px}
.question-map button{width:48px;height:48px;min-width:48px;border-radius:9px;font-size:16px;font-weight:750;color:#66758e;background:#f9fbfe;border:1px solid #e0e7f2;transition:background .15s,border-color .15s}
.question-map button:hover{background:#eef4ff;border-color:#8eb5ff;color:var(--blue)}
.question-map button.current{background:var(--blue);border-color:var(--blue);color:white;box-shadow:0 3px 9px #1764ff20}
.question-map button.correct{background:#eaf8f1;color:#078661;border-color:#b9e6d3}
.question-map button.incorrect{background:#fff0f3;color:#d93f64;border-color:#fac9d4}
.question-map button.current.correct,.question-map button.current.incorrect{outline:2px solid var(--blue);outline-offset:3px}
.question-map-legend{display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;margin-top:17px;font-size:11px;color:#77859b}
.question-map-legend>span{display:inline-flex;align-items:center;gap:6px}
.question-map-legend>span:not(.map-completed)::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--blue)}
.question-map-legend>.map-correct::before{background:var(--green)!important}
.question-map-legend>.map-incorrect::before{background:var(--pink)!important}
.map-completed{margin-left:auto}
.exercise-progress .progress-caption{font-size:14px}
.generator-placeholder{display:flex;align-items:flex-start;gap:12px;background:#f3f7ff;border:1px solid #e2ebfc;border-radius:10px;padding:18px;margin:0 0 24px;color:var(--blue)}
.generator-placeholder>.icon{margin-top:1px}
.generator-placeholder strong{display:block;font-size:13px;color:var(--ink);margin-bottom:5px}
.generator-placeholder span{display:block;font-size:11px;color:#7a879b;line-height:1.7}
@media(max-width:650px){
 .training-heading{align-items:flex-start;gap:17px;flex-wrap:wrap}
 .training-actions{width:100%;gap:9px}
 .training-actions .button{font-size:12px;min-height:46px;padding:11px 13px}
 .training-actions .button.secondary{flex:1}
 .training-actions .icon{width:17px;height:17px}
 .training-navigation{padding:20px 18px;margin-bottom:18px}
 .training-navigation-header{flex-wrap:wrap;gap:10px;margin-bottom:17px}
 .training-navigation-header h2{font-size:16px}
 .question-map{gap:10px}
 .question-map-legend{font-size:11px;gap:10px 13px}
 .map-completed{margin-left:0;flex-basis:100%}
}
/* Training begins with an explicit choice of mode and parameters. */
.mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:23px}
.mode-card{display:flex;flex-direction:column;align-items:flex-start;min-height:355px;border:1px solid #e0e7f2;background:#fff;border-radius:17px;padding:31px;transition:border-color .15s,box-shadow .15s,transform .15s}
.mode-card:hover{border-color:#a9c5ff;box-shadow:0 10px 30px #1a3e7910;transform:translateY(-2px)}
.mode-card-exam{background:linear-gradient(135deg,#eef4ff,#f7faff);border-color:#dce7ff}
.mode-card>.icon-box{width:53px;height:53px;margin-bottom:23px}
.mode-card-label{font-size:10px;font-weight:750;letter-spacing:.12em;color:#8796ae;margin-bottom:11px}
.mode-card h2{font-size:25px;line-height:1.3;margin:0 0 14px;letter-spacing:-.035em}
.mode-card p{font-size:14px;line-height:1.8;max-width:420px;margin:0 0 20px;color:#75829a}
.mode-card-features{display:flex;flex-wrap:wrap;gap:12px 20px;font-size:11px;color:#73829c;margin-bottom:30px}
.mode-card-features>span{display:flex;align-items:center;gap:6px}
.mode-card-features .icon{width:15px;height:15px}
.mode-card-link{display:flex;align-items:center;gap:12px;margin-top:auto;color:var(--blue);font-size:14px;font-weight:750}
.mode-card-exam .mode-card-link{color:#079c79}
.resume-training{display:flex;align-items:center;gap:19px;margin-top:25px;padding:25px 28px}
.resume-training h2{font-size:18px;margin:0 0 6px;letter-spacing:-.02em}
.resume-training p{font-size:13px;margin:0 0 5px}
.resume-training>div>span{font-size:11px;color:#95a0b2}
.resume-training>.button{margin-left:auto;flex:none}
.mode-tip{display:flex;align-items:flex-start;gap:11px;margin-top:24px;padding:17px 20px;border:1px solid #e6edf8;background:#f1f6ff;border-radius:11px;color:#6e8ab4}
.mode-tip .icon{width:18px;height:18px;margin-top:2px;color:var(--blue)}
.mode-tip p{font-size:12px;color:inherit;margin:0;line-height:1.8}
.setup-back{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:#7e8ba1;margin-bottom:20px}
.setup-back:hover{color:var(--blue)}
.setup-back .icon{width:16px;height:16px}
.setup-grid{display:grid;grid-template-columns:minmax(0,1fr) 275px;gap:24px;align-items:start}
.setup-form{padding:28px;min-width:0}
.setup-fieldset{border:0;padding:0;margin:0 0 27px;min-width:0}
.setup-fieldset legend{font-size:16px;font-weight:750;margin:0 0 7px;padding:0;letter-spacing:-.025em}
.setup-help{font-size:12px;line-height:1.8;color:#8a96ab;margin:0 0 17px}
.setup-topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.setup-topic{display:flex;align-items:center;gap:10px;border:1px solid #e1e7f1;border-radius:9px;min-height:60px;padding:13px 12px;cursor:pointer;background:#fff;font-size:12px;font-weight:650}
.setup-topic .icon{width:19px;height:19px;color:#7b91b9}
.setup-topic:has(input:checked){border-color:#a3c3ff;background:#f0f5ff;color:var(--blue)}
.setup-topic input,.display-option input,.exam-mode-option input,.setup-checkbox input{width:17px;height:17px;accent-color:var(--blue);flex:none;cursor:pointer;margin:0}
.setup-topic:focus-within,.display-option:focus-within,.exam-mode-option:focus-within{outline:2px solid #9bbdff;outline-offset:3px}
.setup-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-bottom:28px}
.setup-fields>label{font-size:12px;font-weight:700;display:flex;flex-direction:column;gap:8px;min-width:0}
.setup-fields .field{font-size:13px}
.setup-fields small{font-size:10px;color:#8d99ad;font-weight:500;line-height:1.6}
.display-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}
.display-option{display:flex;flex-direction:column;align-items:flex-start;position:relative;min-width:0;border:1px solid #e0e7f2;padding:15px;border-radius:10px;cursor:pointer;background:#fff}
.display-option:has(input:checked){border-color:#8bb4ff;background:#f3f7ff;box-shadow:0 0 0 1px #bfd4ff}
.display-option>input{position:absolute;right:13px;top:13px;z-index:1}
.display-option>strong{font-size:12px;line-height:1.6;margin-bottom:4px}
.display-option>span:last-child{font-size:10px;line-height:1.8;color:#8a96ab}
.layout-preview{height:80px;width:100%;margin-bottom:13px;background:#f5f8fd;border:1px solid #e3e9f4;border-radius:5px;position:relative;overflow:hidden;display:block}
.layout-preview i,.layout-preview b,.layout-preview em{position:absolute;display:block;background:#dce8fc;border-radius:2px}
.preview-site i{left:0;top:0;bottom:0;width:21%;border-radius:0;background:#e6ecf8}
.preview-site b{left:27%;right:12%;height:6px;top:13px}
.preview-site em{left:27%;right:12%;top:29px;bottom:12px;background:repeating-linear-gradient(#fff 0,#fff 7px,#e9eef8 7px,#e9eef8 9px);border:1px solid #e4ebf8}
.preview-nmt{background:#f0f2f6}
.preview-nmt i{left:0;right:0;top:0;height:10px;background:#51698e;border-radius:0}
.preview-nmt b{left:11%;right:11%;top:18px;height:7px;background:repeating-linear-gradient(90deg,#90a8d0 0,#90a8d0 8px,transparent 8px,transparent 12px)}
.preview-nmt em{left:11%;right:11%;top:34px;bottom:12px;background:repeating-linear-gradient(#fff 0,#fff 6px,#dfe5f0 6px,#dfe5f0 8px);border:1px solid #dbe2ee}
.display-help{font-size:10px;margin:12px 0 0}
.setup-checkbox{display:flex;align-items:center;gap:10px;font-size:13px;min-height:40px;cursor:pointer;color:#52647f}
.setup-checkbox .icon{width:17px;height:17px;color:#8ca0bd}
.setup-form-footer{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:22px;margin-top:20px;border-top:1px solid var(--line)}
.setup-form-footer>span{font-size:11px;color:#8a97ad}
.setup-form-footer>.button{font-size:12px;flex:none}
.setup-summary{position:sticky;top:24px;padding:24px}
.setup-summary h2{font-size:17px;margin:0 0 23px}
.setup-summary-list{display:grid;gap:16px;margin:0}
.setup-summary-list>div{display:flex;justify-content:space-between;gap:15px;font-size:11px;padding-bottom:14px;border-bottom:1px solid #edf1f7}
.setup-summary-list dt{color:#8b97aa}
.setup-summary-list dd{margin:0;font-weight:700;color:#40516e;text-align:right}
.setup-summary-note{font-size:11px;color:#8a97ab;line-height:1.9;margin:20px 0 0}
.setup-summary>.link{font-size:11px;margin-top:20px;line-height:1.8}
.exam-mode-options{display:grid;gap:12px;margin-top:9px}
.exam-mode-option{display:flex;align-items:center;gap:12px;padding:17px;border:1px solid #e0e7f2;border-radius:10px;cursor:pointer;min-width:0}
.exam-mode-option:has(input:checked){background:#f2f7ff;border-color:#a1c1ff}
.exam-mode-option>span{display:flex;flex-direction:column;gap:4px;flex:1}
.exam-mode-option strong{font-size:13px}
.exam-mode-option small{font-size:11px;color:#8b97ac;line-height:1.8}
.exam-mode-option>.icon{width:21px;height:21px;color:#97a9c4;flex:none}
.exam-toggles{padding:15px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:22px}
.setup-notice{display:flex;align-items:flex-start;gap:9px;padding:15px;background:#f6f8fc;border:1px solid #e8edf5;border-radius:9px;margin-bottom:21px}
.setup-notice>.icon{width:17px;height:17px;color:#8b9db8;flex:none;margin-top:2px}
.setup-notice p{font-size:11px;line-height:1.85;margin:0;color:#8190a7}
.exam-start{width:100%;font-size:13px}
.hide-session-timer .exercise-detail:last-child{display:none}
/* A functional, simplified styling option for solving topic exercises. */
.exam-workspace{grid-template-columns:minmax(0,1fr);background:#f1f3f6}
.exam-workspace>.sidebar{display:none}
.exam-workspace>.app-body{grid-column:1}
.exam-workspace .app-content{max-width:1260px;padding:28px 36px 40px}
.exam-workspace .app-topbar{height:65px;border-bottom:3px solid #496b9d;background:white}
.nmt-view .panel{border-radius:5px;box-shadow:none;border-color:#dce2eb}
.nmt-view .training-navigation{padding:19px 24px}
.nmt-view .question-map button{border-radius:4px}
.nmt-view .exercise-options .option{border-radius:4px;border-color:#d9e0eb;min-height:56px}
.nmt-view .exercise-options .option.selected{border-color:#5788d9;background:#edf3fd}
.nmt-view .exercise-question{font-family:Arial,sans-serif;letter-spacing:0;font-size:23px;line-height:1.65}
.nmt-view .training-heading h1{font-size:24px}
@media(max-width:1100px){.setup-grid{grid-template-columns:minmax(0,1fr)}.setup-summary{position:static}.mode-card{padding:25px}.mode-card h2{font-size:23px}}
@media(max-width:800px){.mode-grid{grid-template-columns:minmax(0,1fr)}.mode-card{min-height:0}.mode-card-features{margin-bottom:23px}.mode-card-link{margin-top:0}}
@media(max-width:650px){
 .mode-card{padding:25px 22px}.mode-card>.icon-box{width:47px;height:47px;margin-bottom:18px}.mode-card h2{font-size:23px}.mode-card p{font-size:13px}.mode-card-label{font-size:9px}.mode-card-link{font-size:13px}
 .resume-training{padding:22px;flex-wrap:wrap;gap:13px}.resume-icon{display:none}.resume-training h2{font-size:17px}.resume-training p{font-size:12px}.resume-training>.button{margin:5px 0 0;width:100%}
 .setup-form{padding:23px 19px}.setup-topic-grid{grid-template-columns:minmax(0,1fr)}.setup-topic{font-size:13px;min-height:55px}.setup-fields{gap:13px}.setup-fields .field{font-size:12px;padding:12px 10px}.setup-fields>label{font-size:11px}
 .display-options{gap:10px}.display-option{padding:12px 10px}.display-option>strong{font-size:12px}.display-option>span:last-child{font-size:10px}.display-option>input{top:10px;right:9px}.layout-preview{height:70px}.setup-fieldset legend{font-size:16px}
 .setup-form-footer{flex-direction:column;align-items:stretch;gap:15px}.setup-form-footer>.button{width:100%}.setup-form-footer>span{font-size:11px}
 .exam-mode-option{padding:15px 12px}.exam-mode-option strong{font-size:13px}.exam-mode-option small{font-size:11px}.exam-mode-option>.icon{display:none}.setup-checkbox{font-size:12px}
 .setup-summary{padding:22px}.setup-summary-list>div{font-size:12px}.setup-summary-note{font-size:12px}.setup-grid{gap:18px}
 .exam-workspace .app-content{padding:23px 18px}.exam-workspace .app-topbar{padding:0 18px}.nmt-view .training-navigation{padding:19px 17px}.nmt-view .exercise-question{font-size:20px}
}
/* Browse mathematical topics first; keep setup controls secondary. */
.catalog-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:28px;align-items:start}
.catalog-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;gap:12px}
.catalog-heading h2,.catalog-settings h2{font-size:18px;margin:0;letter-spacing:-.02em}
.catalog-clear{border:0;background:none;color:#687b99;cursor:pointer;padding:8px;font:inherit;font-size:13px}
.catalog-clear:hover{color:var(--blue)}
.topic-catalog{display:grid;gap:12px}
.catalog-group{border:1px solid #dfe6f1;border-radius:12px;background:white;overflow:hidden}
.catalog-group summary{display:flex;align-items:center;gap:13px;min-height:68px;padding:18px 20px;cursor:pointer;list-style:none}
.catalog-group summary::-webkit-details-marker,.catalog-extra summary::-webkit-details-marker{display:none}
.catalog-group summary>.icon:first-child{width:21px;height:21px;color:#7891b9;flex:none}
.catalog-group summary>strong{font-size:14px;font-weight:650;line-height:1.5}
.catalog-group summary>.icon:last-child{width:17px;height:17px;flex:none;color:#8999b0;transition:transform .15s}
.catalog-group[open] summary>.icon:last-child{transform:rotate(180deg)}
.catalog-group[open] summary{border-bottom:1px solid #edf1f7}
.catalog-group-count{margin-left:auto;white-space:nowrap;font-size:11px;color:#7b8da7}
.catalog-children{padding:9px 12px}
.catalog-topic{display:flex;align-items:center;gap:12px;padding:13px 10px;border-radius:7px;cursor:pointer;font-size:13px;line-height:1.6;min-height:48px}
.catalog-topic:hover{background:#f5f8ff}.catalog-topic:has(input:checked){background:#edf4ff;color:#175ce4}
.catalog-topic input,.catalog-levels input{width:17px;height:17px;accent-color:var(--blue);margin:0;flex:none}
.catalog-topic small{font-size:11px;white-space:nowrap;color:#8190a7;margin-left:auto}
.catalog-topic.unavailable{cursor:default;color:#8895a9}.catalog-topic.unavailable:hover{background:transparent}
.catalog-settings{padding:24px;position:sticky;top:24px}
.catalog-selection{padding:20px 0;border-bottom:1px solid var(--line);margin-bottom:22px}
.catalog-selection>span{font-size:12px;color:#7585a0;display:flex;align-items:center;justify-content:space-between}
.catalog-selection strong{font-size:25px;color:var(--ink);font-weight:650}
.catalog-selection p{font-size:12px;line-height:1.8;margin:9px 0 0;color:#5e7294;max-height:100px;overflow:auto}
.catalog-levels,.compact-display{border:0;padding:0;margin:0 0 22px;min-width:0}
.catalog-levels legend,.compact-display legend{font-size:13px;font-weight:650;margin-bottom:11px;padding:0}
.catalog-levels>label{display:flex;align-items:center;gap:10px;font-size:13px;min-height:36px;cursor:pointer}
.catalog-count{font-size:13px;font-weight:650;display:flex;flex-direction:column;gap:10px}
.catalog-count .field{width:100%;font-size:14px;padding:12px}
.catalog-available{font-size:11px;color:#7384a0;line-height:1.7;margin:10px 0 20px}
.catalog-extra{border-top:1px solid var(--line);padding-top:16px;margin-bottom:22px}
.catalog-extra summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:12px;cursor:pointer;color:#667c9d;margin-bottom:12px}
.catalog-extra summary .icon{width:16px;height:16px}
.catalog-extra .compact-display{margin:16px 0 10px}.catalog-extra legend{font-size:12px}
.catalog-settings>.button{width:100%;font-size:13px;padding:14px 12px;gap:10px}
.display-switch{display:flex;background:#f0f3f8;border-radius:9px;padding:4px;gap:4px}
.display-switch label{flex:1;position:relative;min-width:0;cursor:pointer}
.display-switch input{position:absolute;opacity:0;width:1px;height:1px}
.display-switch span{display:flex;align-items:center;justify-content:center;min-height:38px;border-radius:6px;padding:7px 10px;font-size:13px;color:#74839b;text-align:center}
.display-switch input:checked+span{background:white;color:#204574;box-shadow:0 1px 4px #14335915;font-weight:650}
.display-switch input:focus-visible+span{outline:2px solid var(--blue);outline-offset:1px}
.exam-setup-page{max-width:720px;margin:0 auto}
.exam-compact{padding:32px 36px}
.exam-compact header{margin-bottom:27px}
.exam-eyebrow{font-size:10px;font-weight:700;letter-spacing:.13em;color:#7795bd}
.exam-compact h1{font-size:27px;letter-spacing:-.04em;margin:9px 0 7px}
.exam-compact header p{font-size:13px;color:#7587a3;margin:0}
.exam-compact .setup-fieldset{margin-bottom:22px}
.exam-compact .setup-fieldset legend{font-size:13px}
.exam-compact .exam-mode-options{gap:3px}
.exam-compact .exam-mode-option{border:0;background:none;padding:10px 0;border-radius:0}
.exam-compact .exam-mode-option small{font-size:12px;color:#7b8da8}
.exam-compact .compact-display{border-top:1px solid var(--line);padding-top:20px;margin:0 0 21px}
.exam-compact .compact-display legend{float:left;width:100%;margin-bottom:12px}
.exam-compact .display-switch{clear:both}
.exam-compact .exam-toggles{margin:0 0 21px;padding:13px 0 0;border-bottom:0}
.exam-compact .setup-checkbox{font-size:13px;color:#364e72;min-height:37px}
.exam-placeholder-note{text-align:center;font-size:11px;color:#7a8da9;line-height:1.7;margin:12px 0 0}
@media(max-width:1100px){.catalog-layout{grid-template-columns:minmax(0,1fr) 280px;gap:20px}.catalog-settings{padding:21px}.catalog-group summary{padding:17px 15px;gap:10px}.catalog-group-count{font-size:10px}}
@media(max-width:850px){.catalog-layout{grid-template-columns:minmax(0,1fr)}.catalog-settings{position:static}.catalog-selection p{max-height:none}}
@media(max-width:650px){.catalog-group summary>strong{font-size:13px}.catalog-group summary{flex-wrap:wrap;min-height:64px}.catalog-group-count{font-size:10px}.catalog-topic{font-size:12px;gap:10px}.catalog-topic small{font-size:10px}.catalog-children{padding:8px}.exam-compact{padding:26px 22px}.exam-compact h1{font-size:25px}.display-switch span{font-size:12px}.catalog-settings{padding:23px}.catalog-heading h2{font-size:17px}}
.section-eyebrow{display:block;font-size:11px;font-weight:700;letter-spacing:.12em;color:#718db3;margin-bottom:12px}
.section-heading.left{text-align:left;max-width:700px;margin:0 0 30px}.section-heading.left h2{font-size:32px}
.catalog-page{background:#f8faff;min-height:65vh}.catalog-hero{padding:35px 0 32px;background:#fff;border-bottom:1px solid var(--line)}.catalog-hero h1{font-size:35px;letter-spacing:-.04em;line-height:1.25;margin:0 0 15px}.catalog-hero p{max-width:800px;font-size:14px;line-height:1.8;color:#7486a3;margin:0}.catalog-back{display:flex;align-items:center;gap:8px;font-size:12px;color:#7c8da5;margin:0 0 27px;width:fit-content}.catalog-back .icon{width:16px;height:16px}.catalog-content{padding:35px 0 60px}.catalog-note{font-size:12px;color:#7e8eaa;line-height:1.8;margin:25px 0 0}
.variant-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.variant-card{display:flex;flex-direction:column;border:1px solid #dee7f4;border-radius:14px;padding:25px;background:white;text-align:left;transition:border-color .15s,box-shadow .15s}.variant-card:hover{border-color:#9bbcff;box-shadow:0 5px 22px #1764ff10}.variant-card>div{display:flex;align-items:center;justify-content:space-between;gap:12px}.variant-number{font-size:26px;font-weight:700;color:#a9c0e5}.variant-card .pill{font-size:10px;padding:6px 10px}.variant-card h2{font-size:20px;letter-spacing:-.025em;margin:24px 0 10px}.variant-card p{font-size:12px;line-height:1.8;color:#7a8ca7;margin:0 0 24px}.variant-card footer{margin-top:auto;padding-top:17px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;color:#8293ad}.variant-card footer b{color:var(--blue);display:flex;align-items:center;gap:8px}.variant-card footer .icon{width:16px;height:16px}
.start-section{padding:50px 0 70px}.start-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.start-card{position:relative;background:#fff;border:1px solid #dce6f5;border-radius:16px;padding:30px;display:flex;flex-direction:column;align-items:flex-start}.start-card:hover{border-color:#93b7ff;box-shadow:0 7px 28px #1764ff0d}.start-card>.icon-box{margin-bottom:25px;width:50px;height:50px}.start-card-arrow{position:absolute;top:30px;right:28px;color:#849bc1}.start-card h3{font-size:25px;letter-spacing:-.025em;margin:0 0 13px}.start-card p{color:#778aa7;font-size:14px;line-height:1.85;margin:0 0 27px}.start-card-footer{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;align-items:center;gap:20px;width:100%;font-size:11px;color:#8495af;margin-top:auto}.start-card-footer b{color:var(--blue);display:flex;align-items:center;gap:8px}.start-card-footer .icon{width:16px;height:16px}
.cabinet-preview{border:1px solid #d9e5f8;border-radius:16px;background:white;padding:24px;box-shadow:0 20px 60px #4267980f}.cabinet-preview-head{display:flex;align-items:center;gap:12px;padding-bottom:20px;border-bottom:1px solid var(--line)}.cabinet-preview-head>div{display:flex;flex-direction:column;gap:6px}.cabinet-preview-head strong{font-size:14px}.cabinet-preview-head span:not(.icon-box){font-size:10px;color:#8a9bb4}.cabinet-preview-head em{margin-left:auto;font-style:normal;font-size:10px;color:#8a9bb4}.cabinet-preview-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:22px 0}.cabinet-preview-metrics>div{display:flex;flex-direction:column;align-items:flex-start;gap:10px}.cabinet-preview-metrics .icon-box{width:31px;height:31px}.cabinet-preview-metrics strong{font-size:23px}.cabinet-preview-metrics>div>span:last-child{font-size:9px;color:#8396b0;line-height:1.6}.cabinet-preview-lower{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:18px 0 23px;border-top:1px solid var(--line)}.cabinet-preview-lower strong{font-size:12px}.cabinet-chart small{font-size:9px;color:#8ea0ba}.cabinet-bars{height:90px;display:flex;align-items:flex-end;gap:8px;margin:15px 0 5px}.cabinet-bars i{flex:1;background:#bad2ff;border-radius:4px 4px 0 0;height:35%}.cabinet-bars i:nth-child(2n){height:53%;background:#8db6ff}.cabinet-bars i:nth-child(3n){height:70%}.cabinet-bars i:last-child{height:90%;background:#1764ff}.cabinet-repeat{display:flex;flex-direction:column;gap:11px}.cabinet-repeat>span{display:flex;justify-content:space-between;font-size:10px;color:#7f92ae}.cabinet-repeat i{height:4px;border-radius:4px;background:linear-gradient(to right,var(--accent) var(--progress),#edf2f8 var(--progress))}.cabinet-preview-cta{display:flex;align-items:center;gap:12px;background:#f4f7fe;border-radius:9px;padding:14px}.cabinet-preview-cta>div{display:flex;flex-direction:column;gap:5px}.cabinet-preview-cta strong{font-size:11px}.cabinet-preview-cta span:not(.icon-box){font-size:9px;color:#8b9db8}.cabinet-preview-cta>.button{font-size:10px;padding:10px;margin-left:auto;flex:none}.cabinet-preview-cta>.icon-box{display:none}.footer-button{border:0;background:none;font:inherit;font-size:12px;cursor:pointer}
@media(max-width:900px){.variant-list{grid-template-columns:repeat(2,minmax(0,1fr))}.start-card{padding:24px}.start-card-footer{flex-direction:column;align-items:flex-start;gap:10px}.cabinet-preview{padding:19px}}
@media(max-width:650px){.catalog-hero{padding:26px 0}.catalog-hero h1{font-size:28px}.catalog-hero p{font-size:13px}.catalog-content{padding:24px 0 40px}.variant-list{grid-template-columns:minmax(0,1fr);gap:15px}.variant-card{padding:23px}.start-section{padding:30px 0 45px}.start-grid{grid-template-columns:minmax(0,1fr)}.start-card h3{font-size:24px}.start-card p{font-size:13px}.start-card-footer{flex-direction:row;font-size:10px}.section-heading.left h2{font-size:28px}.cabinet-preview-cta>.button{font-size:9px}.cabinet-preview-head strong{font-size:12px}}
.open-catalog{max-width:920px;margin:auto;background:white;border:1px solid var(--line);padding:26px;border-radius:16px}
.open-catalog-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;gap:16px}.open-catalog-title h2{font-size:20px;margin:0}.open-catalog-title>span{font-size:12px;color:#7d8ba1}
.open-topic-group{border:1px solid #e0e7ef;border-radius:10px;margin-top:12px;overflow:hidden}
.open-topic-group summary{display:flex;align-items:center;gap:16px;padding:20px;cursor:pointer;list-style:none}.open-topic-group summary::-webkit-details-marker{display:none}
.open-topic-group summary>span:nth-child(2){display:flex;flex-direction:column;gap:5px}.open-topic-group strong{font-size:15px;font-weight:650}.open-topic-group summary small{color:#7a8da6;font-size:12px}.open-topic-group summary>.icon{margin-left:auto;width:18px;height:18px;color:#8293aa}.open-topic-group[open] summary>.icon{transform:rotate(180deg)}
.open-topic-group[open] summary{border-bottom:1px solid var(--line)}.open-topic-group>div{padding:10px}
.open-topic-group a{display:flex;align-items:center;gap:12px;padding:15px 12px;border-radius:7px;font-size:14px;line-height:1.6}.open-topic-group a:hover{background:#eff5ff;color:var(--blue)}.open-topic-group a>.icon{width:16px;height:16px;flex:none;color:#8c9cb1}.open-topic-group a>small{margin-left:auto;font-size:11px;white-space:nowrap;color:#8594ab}.open-topic-group a>.icon:last-child{color:var(--blue)}
.open-solver{padding-top:35px;padding-bottom:65px;max-width:1160px}.open-solver-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:8px 0 24px}.open-solver-heading h1{font-size:30px;line-height:1.35;margin:10px 0}.open-solver-heading p,.open-instruction{font-size:13px;line-height:1.8;color:#72839f}.open-solver-heading>.button{flex:none}
.open-task-nav{display:flex;gap:9px;flex-wrap:wrap;border:1px solid var(--line);background:#fff;border-radius:12px;padding:18px}.open-task-nav button{width:44px;height:44px;border:1px solid #d9e3f3;border-radius:7px;background:white;color:#697e9f;font:inherit;font-size:13px;cursor:pointer}.open-task-nav button.answered{background:#eef4ff;color:var(--blue);border-color:#a7c4ff}.open-task-nav button.right{background:#e9f9f1;color:#088c68;border-color:#99dec5}.open-task-nav button.wrong{background:#fff0f4;color:#d9456d;border-color:#f6b8ca}
.open-instruction{margin:20px 0}.open-task{scroll-margin-top:100px;background:white;border:1px solid #dde5f0;border-radius:14px;margin-bottom:22px;overflow:hidden}.open-practice .task{border:0;border-radius:0;padding:27px 29px;margin:0;background:transparent}.open-practice .problem{white-space:pre-wrap}.open-practice .task .option{box-shadow:none;font-size:16px;line-height:1.65;white-space:normal}.open-practice .task .option input{width:17px;height:17px;flex:none}.open-practice .task .short-input{background:white;color:#173154}.open-practice .task input:disabled,.open-practice .task select:disabled{opacity:.8}.open-practice .task .matching{font-size:15px}.open-practice .task .task-content{min-width:0}.open-practice .task math{font-size:1.1em}
.open-task-check{border-top:1px solid #edf1f6;padding:18px 29px;display:flex;align-items:center;gap:16px;justify-content:flex-end}.open-task-check>.button{flex:none;min-height:42px}.open-feedback{margin-right:auto;display:flex;flex-direction:column;gap:6px;font-size:13px;line-height:1.7;max-width:100%;overflow-wrap:anywhere}.open-feedback strong{font-size:15px}.open-feedback.right{color:#078962}.open-feedback.wrong{color:#c54565}
.open-check-all{display:flex;align-items:center;justify-content:space-between;gap:20px;background:#edf4ff;border:1px solid #d6e4fb;padding:25px;border-radius:13px}.open-check-all strong{font-size:17px}.open-check-all p{font-size:12px;color:#7187a8;margin:7px 0 0}.open-check-all>.button{flex:none;font-size:13px}
.open-result{max-width:760px;margin:auto;padding:38px;text-align:center}.open-score{display:block;font-size:52px;line-height:1.2;color:var(--blue);letter-spacing:-.05em}.open-result>p{font-size:13px;color:#7c8ca5}.open-result-stats{display:flex;justify-content:center;gap:40px;margin:32px 0}.open-result-stats>span{display:flex;flex-direction:column;gap:10px;font-size:13px;color:#8492a8}.open-result-stats b{font-size:22px;color:#1b3155}
@media(max-width:700px){.open-catalog{padding:18px 13px}.open-catalog-title{padding:0 5px}.open-catalog-title h2{font-size:17px}.open-topic-group summary{padding:17px 13px;gap:12px}.open-topic-group summary .icon-box{width:35px;height:35px;flex:none}.open-topic-group strong{font-size:13px}.open-topic-group a{font-size:13px;padding:12px 7px;gap:8px}.open-topic-group a>.icon:last-child{display:none}.open-solver{padding-top:23px}.open-solver-heading{flex-direction:column;align-items:flex-start}.open-solver-heading h1{font-size:25px}.open-task-nav{padding:13px;gap:8px}.open-task-nav button{width:40px;height:40px}.open-practice .task{padding:22px 17px}.open-practice .task .option{font-size:14px}.open-task-check{padding:16px 17px;flex-direction:column;align-items:stretch}.open-task-check>.button{width:100%}.open-check-all{flex-direction:column;align-items:stretch;padding:22px 18px}.open-result{padding:30px 18px}.open-result-stats{gap:20px}.open-result-stats>span{font-size:11px}.open-result-stats b{font-size:19px}}
.service-section{padding:56px 0;background:linear-gradient(115deg,#f5f8ff 0%,#fbfcff 60%,#f5fafb 100%);border-top:1px solid #edf2f9;border-bottom:1px solid #edf2f9;scroll-margin-top:0}
.service-layout{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1fr);align-items:center;gap:80px}
.service-intro .section-eyebrow{color:#6c8ab6;margin-bottom:20px}
.service-intro h2{font-size:39px;line-height:1.22;letter-spacing:-.045em;margin:0 0 22px;max-width:480px}
.service-intro h2 span{color:var(--blue)}
.service-intro>p{font-size:15px;line-height:1.9;color:#70819e;max-width:410px;margin:0 0 29px}
.service-intro>.button{font-size:14px;min-height:50px;gap:16px}
.service-open-note{display:flex;align-items:flex-start;gap:7px;font-size:11px;line-height:1.7;color:#8192ad;margin-top:15px;max-width:350px}
.service-open-note .icon{width:14px;height:14px;flex:none;margin-top:2px;color:#7b9ac6}
.service-features{display:grid;gap:15px}
.service-feature{position:relative;display:flex;align-items:flex-start;gap:18px;padding:26px 29px 26px 25px;background:#ffffffeb;border:1px solid #e1e9f5;border-radius:14px;box-shadow:0 3px 16px #2e508105}
.service-feature>.icon-box{width:46px;height:46px;flex:none;border-radius:12px;margin-top:1px}
.service-feature>.icon-box .icon{width:23px;height:23px}
.service-feature>div{min-width:0;padding-right:14px}
.service-feature-label{display:block;font-size:9px;font-weight:700;letter-spacing:.09em;color:#92a2b9;margin-bottom:8px}
.service-feature h3{font-size:18px;font-weight:700;line-height:1.4;letter-spacing:-.025em;margin:0 0 8px}
.service-feature p{font-size:13px;color:#7b8ca6;line-height:1.8;margin:0;max-width:380px}
.service-feature-number{position:absolute;right:17px;top:16px;font-size:11px;color:#c6d3e5;font-weight:650}
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.exam-result{text-align:center;max-width:800px;margin:0 auto;padding:36px}.exam-nmt-score{display:block;font-size:68px;line-height:1.3;color:#1764ff;margin:24px 0 8px;letter-spacing:-.04em}.exam-result p{color:#687b99}.exam-result-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:28px}.exam-statistics{margin-top:24px;padding:24px}.exam-statistics h2{font-size:20px;margin:0 0 18px}.exam-history{display:grid;gap:10px}.exam-history>a{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:4px 16px;border:1px solid #e4ebf6;border-radius:10px;padding:16px}.exam-history>a>strong{font-size:21px;color:#1764ff;grid-column:2;grid-row:1/3}.exam-history>a>small{color:#7a8499}.exam-history>a>.icon{grid-column:3;grid-row:1/3}.exam-history>a>span{font-size:14px}.exam-history>a>small{grid-column:1}
@media(max-width:700px){.exam-run-heading{align-items:flex-start;flex-direction:column}.exam-run-controls{width:100%;justify-content:space-between}.exam-run-heading h1{font-size:23px}.exam-focus-workspace .app-content{padding:18px 14px}.exam-result{padding:25px 18px}.exam-nmt-score{font-size:45px}.exam-history>a{grid-template-columns:1fr auto}.exam-history>a>.icon{display:none}.exam-run-controls .button{font-size:12px}}

.training-count-options{border:0;margin:0;padding:0;min-width:0}.training-count-options legend{font-size:13px;font-weight:600;margin-bottom:12px}.training-count-presets{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}.training-count-presets button{border:1px solid #dce5f4;background:white;color:#526b8d;min-width:42px;height:36px;border-radius:999px;font:inherit;font-size:13px;cursor:pointer}.training-count-presets button[aria-pressed=true]{background:#1764ff;border-color:#1764ff;color:white}.training-count-presets button:disabled{opacity:.4;cursor:not-allowed}.training-count-presets button:focus-visible{outline:2px solid #1764ff;outline-offset:3px}.training-count-options .catalog-count>span{font-size:12px;color:#7a8499}.exam-daily-limit{font-size:13px;color:#687b99;line-height:1.6}.exam-daily-limit strong{color:#1764ff}

.open-result .exam-score-status{font-size:28px;letter-spacing:0;line-height:1.4}

.cabinet-screenshot{margin:0;border:1px solid #d9e5f8;border-radius:14px;background:#fff;overflow:hidden;box-shadow:0 20px 60px #42679818}.cabinet-screenshot a{display:block;line-height:0;cursor:zoom-in}.cabinet-screenshot img{display:block;width:100%;height:auto}.cabinet-screenshot a:focus-visible{outline:3px solid #1764ff;outline-offset:-3px}.hero-visual:has(.cabinet-screenshot){align-self:center}

.icon-box.coral{color:#dc4b43;background:#fff0ed}
.profile-diagnostic-link{display:flex;align-items:center;justify-content:space-between;gap:16px;border:1px solid #e3eafa;border-radius:12px;padding:16px;margin-top:20px;background:#f6f9ff}.profile-diagnostic-link>span{display:flex;align-items:center;gap:12px}.profile-diagnostic-link>span>span{display:grid;gap:5px}.profile-diagnostic-link strong{font-size:14px}.profile-diagnostic-link small{font-size:12px;color:var(--muted)}.profile-diagnostic-link>span:last-child{font-size:12px;color:var(--blue);font-weight:700}.profile-diagnostic-link:hover{border-color:#1764ff}.profile-diagnostic-link .icon{width:18px;height:18px}
@media(max-width:480px){.profile-diagnostic-link{flex-wrap:wrap}.profile-diagnostic-link>span:last-child{margin-left:30px}}