@import "https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap";:root{--c-navy-900:#08213d;--c-navy-800:#0b2a4a;--c-blue-700:#0e4da4;--c-blue-600:#1565d8;--c-blue-500:#2e7dec;--c-blue-100:#dcebff;--c-blue-050:#eff6ff;--c-teal-700:#047857;--c-green-600:#059669;--c-green-500:#10b981;--c-green-100:#d1fae5;--c-green-050:#ecfdf5;--c-ink-900:#0f1b2d;--c-ink-700:#334155;--c-ink-500:#64748b;--c-line-200:#e2e8f0;--c-surface-50:#f6f9fc;--c-surface-0:#fff;--c-correct:var(--c-green-500);--c-incorrect:#dc2626;--c-warn:#f59e0b;--c-misconcept:#b91c1c;--c-red-100:#fee2e2;--c-red-050:#fef2f2;--band-grey-fill:#94a3b8;--band-grey-ink:#0f1b2d;--band-orange-fill:#f2683c;--band-orange-ink:#fff;--band-yellow-fill:#f4b740;--band-yellow-ink:#0f1b2d;--band-light_green-fill:#34c77b;--band-light_green-ink:#06281b;--band-green-fill:#059669;--band-green-ink:#fff;--font-display:"Space Grotesk", "Inter", system-ui, sans-serif;--font-body:"Inter", system-ui, -apple-system, sans-serif;--font-mono:"IBM Plex Mono", ui-monospace, monospace;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-pill:999px;--space:4px;--shadow-card:0 1px 2px #0b2a4a0f, 0 4px 16px #0b2a4a14;--shadow-float:0 8px 32px #0b2a4a29;--ring:0 0 0 3px #1565d859;--ease:cubic-bezier(.2,.7,.2,1);--grad-brand:linear-gradient(135deg, var(--c-navy-800), var(--c-blue-600));--shadow-pop:0 2px 4px #0b2a4a14, 0 16px 48px #0b2a4a33;--surface-raised:#fbfdff;--fs-xs:.75rem;--fs-sm:.8125rem;--fs-md:.9375rem;--fs-lg:1.125rem;--fs-xl:1.375rem;--fs-2xl:1.75rem;--fs-3xl:2.5rem;--plan-free:var(--c-green-600);--plan-paid:var(--c-blue-600);--avatar-0:var(--c-blue-600);--avatar-1:var(--c-green-600);--avatar-2:var(--c-blue-700);--avatar-3:var(--c-teal-700);--avatar-4:var(--c-navy-800);--avatar-5:var(--c-blue-500)}.card{background:var(--c-surface-0);border:1px solid var(--c-line-200);border-radius:var(--radius-md);box-shadow:var(--shadow-card);padding:24px}.btn{border-radius:var(--radius-md);cursor:pointer;transition:background .14s var(--ease), border-color .14s var(--ease);border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:10px 18px;font-size:.9375rem;font-weight:600;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn:active:not(:disabled){transform:scale(.98)}.btn-primary{background:var(--c-blue-600);color:#fff}.btn-primary:hover:not(:disabled){background:var(--c-blue-700)}.btn-success{background:var(--c-green-600);color:#fff}.btn-success:hover:not(:disabled){background:var(--c-teal-700)}.btn-ghost{color:var(--c-ink-700);border-color:var(--c-line-200);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--c-surface-50)}.btn-danger{color:var(--c-incorrect);border-color:var(--c-incorrect);background:0 0}.btn-danger:hover:not(:disabled){background:var(--c-red-050)}.btn-block{width:100%}.btn-sm{padding:6px 12px;font-size:.8125rem}.field{flex-direction:column;gap:6px;margin-bottom:16px;display:flex}.field label{color:var(--c-ink-700);font-size:.8125rem;font-weight:600}.input,select.input{font:inherit;border:1px solid var(--c-line-200);border-radius:var(--radius-sm);background:var(--c-surface-0);color:var(--c-ink-900);padding:10px 12px}.field-error{color:var(--c-incorrect);font-size:.8125rem}.pill{border-radius:var(--radius-pill);align-items:center;gap:6px;padding:4px 12px;font-size:.8125rem;font-weight:600;display:inline-flex}.chip{border-radius:var(--radius-pill);background:var(--c-blue-050);color:var(--c-blue-700);align-items:center;gap:4px;padding:2px 10px;font-size:.75rem;font-weight:600;display:inline-flex}.alert{border-radius:var(--radius-md);align-items:flex-start;gap:10px;padding:12px 16px;font-size:.875rem;display:flex}.alert-error{background:var(--c-red-050);color:var(--c-misconcept);border:1px solid var(--c-incorrect)}.alert-warn{color:#9a3412;border:1px solid var(--c-warn);background:#fff7ed}.alert-info{background:var(--c-blue-050);color:var(--c-blue-700);border:1px solid var(--c-blue-100)}.table{border-collapse:collapse;width:100%;font-size:.875rem}.table th{text-align:left;color:var(--c-ink-500);border-bottom:1px solid var(--c-line-200);text-transform:uppercase;letter-spacing:.04em;padding:10px 12px;font-size:.75rem;font-weight:600}.table td{border-bottom:1px solid var(--c-line-200);padding:12px}.table tr:hover td{background:var(--c-surface-50)}.muted{color:var(--c-ink-500)}.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}.stack{flex-direction:column;gap:24px;display:flex}.row{align-items:center;gap:12px;display:flex}.spread{justify-content:space-between;align-items:center;display:flex}.icon{vertical-align:-.15em;flex:none}.table-scroll{-webkit-overflow-scrolling:touch;overflow-x:auto}.table-scroll>.table{min-width:480px}*,:before,:after{box-sizing:border-box}html,body,#root{height:100%}body{font-family:var(--font-body);color:var(--c-ink-900);background:var(--c-surface-50);-webkit-font-smoothing:antialiased;margin:0;font-size:16px;line-height:1.5}h1,h2,h3,h4{font-family:var(--font-display);letter-spacing:-.01em;margin:0 0 .5em;font-weight:700;line-height:1.2}a{color:var(--c-blue-600);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit}:where(a,button,input,select,textarea,[tabindex]):focus-visible{box-shadow:var(--ring);border-radius:var(--radius-sm);outline:none}.tnum{font-variant-numeric:tabular-nums;font-family:var(--font-mono)}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.001ms!important;animation-duration:.001ms!important}}.app-shell{flex-direction:column;min-height:100%;display:flex}.topbar{border-bottom:1px solid var(--c-line-200);align-items:center;gap:24px;height:60px;padding:0 24px;display:flex}.topbar-learner{background:var(--c-surface-0)}.topbar-admin{background:var(--c-navy-800);border-bottom-color:var(--c-navy-900)}.brand{font-family:var(--font-display);font-weight:700;font-size:var(--fs-lg);color:var(--c-navy-900)}.brand:hover{text-decoration:none}.brand-light{color:#fff}.topnav{flex:1;gap:4px;display:flex}.topnav a{border-radius:var(--radius-sm);font-size:var(--fs-md);color:var(--c-ink-700);align-items:center;gap:7px;padding:8px 14px;font-weight:500;display:inline-flex}.topnav a:hover{background:var(--c-surface-50);text-decoration:none}.topnav a.active{background:var(--c-blue-050);color:var(--c-blue-700)}.topnav-light a{color:#b6c6dc}.topnav-light a:hover{background:#ffffff0f}.topnav-light a.active{color:#fff;background:#ffffff1f}.content{flex:1;width:100%;max-width:920px;margin:0 auto;padding:32px 24px}.content-wide{max-width:1240px}.page-title{margin-bottom:24px}.avatar-menu{position:relative}.avatar-trigger{cursor:pointer;border-radius:var(--radius-pill);background:0 0;border:none;align-items:center;gap:4px;padding:4px;display:inline-flex}.avatar-trigger:hover{background:var(--c-surface-50)}.avatar-circle{color:#fff;width:32px;height:32px;font-weight:700;font-size:var(--fs-sm);font-family:var(--font-display);letter-spacing:.02em;border-radius:50%;place-items:center;display:grid}.avatar-caret{color:var(--c-ink-500)}.avatar-dropdown{z-index:100;background:var(--surface-raised);border:1px solid var(--c-line-200);border-radius:var(--radius-md);min-width:220px;box-shadow:var(--shadow-float);animation:avatar-pop .16s var(--ease);flex-direction:column;gap:2px;padding:6px;display:flex;position:absolute;top:calc(100% + 8px);right:0}@keyframes avatar-pop{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}.avatar-dropdown-head{border-bottom:1px solid var(--c-line-200);flex-direction:column;gap:2px;margin-bottom:4px;padding:8px 10px 10px;display:flex}.avatar-dropdown-name{font-weight:600;font-size:var(--fs-md)}.avatar-dropdown-sub{font-size:var(--fs-xs)}.avatar-item{text-align:left;border-radius:var(--radius-sm);width:100%;font-size:var(--fs-md);color:var(--c-ink-700);cursor:pointer;background:0 0;border:none;align-items:center;gap:10px;padding:9px 10px;font-weight:500;display:flex}.avatar-item:hover{background:var(--c-blue-050);color:var(--c-blue-700);text-decoration:none}.avatar-item-danger{color:var(--c-incorrect)}.avatar-item-danger:hover{background:var(--c-red-050);color:var(--c-incorrect)}.bottom-tabs{z-index:90;background:var(--surface-raised);border-top:1px solid var(--c-line-200);padding:6px 4px calc(6px + env(safe-area-inset-bottom,0px));display:none;position:fixed;inset:auto 0 0;box-shadow:0 -2px 12px #0b2a4a14}.bottom-tab{font-size:var(--fs-xs);color:var(--c-ink-500);border-radius:var(--radius-sm);flex-direction:column;flex:1;align-items:center;gap:3px;padding:6px 0;font-weight:500;display:flex}.bottom-tab:hover{text-decoration:none}.bottom-tab.active{color:var(--c-blue-700)}.site-footer{border-top:1px solid var(--c-line-200);font-size:var(--fs-xs);color:var(--c-ink-500);text-align:center;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;padding:20px 24px;display:flex}.site-footer-copy{color:var(--c-ink-700);font-weight:500}.site-footer-sep{color:var(--c-line-200)}@media (width<=1024px){.content{padding:28px 20px}}@media (width<=760px){.topbar-learner .topnav{display:none}.content-learner{padding:20px 16px 84px}.bottom-tabs{display:flex}.site-footer{margin-bottom:72px}}.skeleton{background:var(--c-surface-50);border-radius:var(--radius-sm);position:relative;overflow:hidden}.skeleton:after{content:"";animation:skeleton-shimmer 1.25s var(--ease) infinite;background:linear-gradient(90deg,#0000 0%,#ffffffa6 50%,#0000 100%);position:absolute;inset:0;transform:translate(-100%)}@keyframes skeleton-shimmer{to{transform:translate(100%)}}.skeleton-line{border-radius:var(--radius-pill);height:.85em}.skeleton-block{border-radius:var(--radius-md)}.skeleton-row{border-bottom:1px solid var(--c-line-200);align-items:center;gap:12px;padding:14px 0;display:flex}.skeleton-row .skeleton-avatar{border-radius:50%;flex:none;width:40px;height:40px}.skeleton-row .skeleton-lines{flex-direction:column;flex:1;gap:8px;display:flex}.skeleton-stack{flex-direction:column;gap:24px;display:flex}@media (prefers-reduced-motion:reduce){.skeleton:after{opacity:.4;animation:none}}.toast-viewport{z-index:200;pointer-events:none;flex-direction:column;gap:10px;max-width:min(360px,100vw - 32px);display:flex;position:fixed;top:16px;right:16px}.toast{pointer-events:auto;border-radius:var(--radius-md);background:var(--surface-raised);border:1px solid var(--c-line-200);box-shadow:var(--shadow-float);font-size:var(--fs-md);color:var(--c-ink-900);animation:toast-in .22s var(--ease);align-items:flex-start;gap:10px;padding:12px 14px;display:flex}.toast-success{border-left:3px solid var(--c-green-600)}.toast-info{border-left:3px solid var(--c-blue-600)}.toast-icon{flex:none;margin-top:1px}.toast-success .toast-icon{color:var(--c-green-600)}.toast-info .toast-icon{color:var(--c-blue-600)}.toast-body{flex:1}.toast-close{cursor:pointer;color:var(--c-ink-500);background:0 0;border:none;flex:none;padding:0;line-height:1}.toast-close:hover{color:var(--c-ink-900)}@keyframes toast-in{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}@media (width<=760px){.toast-viewport{align-items:center;max-width:none;inset:auto 12px 76px}.toast{width:100%}}.score-ring{place-items:center;display:inline-grid;position:relative}.score-ring svg{display:block;transform:rotate(0)}.score-ring-track{stroke:var(--c-line-200)}.score-ring-center{flex-direction:column;justify-content:center;align-items:center;gap:2px;display:flex;position:absolute;inset:0}.score-ring-marks{font-size:var(--fs-2xl);color:var(--c-navy-900);font-weight:700;line-height:1}.score-ring-max{font-size:var(--fs-xs)}.mastery-bar{flex-direction:column;gap:6px;display:flex}.mastery-bar-head{font-size:var(--fs-md);justify-content:space-between;align-items:baseline;gap:12px;display:flex}.mastery-bar-label{color:var(--c-ink-900);font-weight:600}.mastery-bar-pct{color:var(--c-ink-700);font-weight:700}.mastery-bar-lock{color:var(--c-ink-500);font-size:var(--fs-sm);align-items:center;gap:5px;display:inline-flex}.mastery-bar-lock svg{flex:none}.mastery-bar-track{border-radius:var(--radius-pill);background:var(--c-surface-50);height:8px;overflow:hidden}.mastery-bar-fill{border-radius:var(--radius-pill);height:100%;transition:width .6s var(--ease);display:block}.mastery-bar-hatch{background-color:var(--c-line-200);background-image:repeating-linear-gradient(135deg, var(--band-grey-fill) 0, var(--band-grey-fill) 2px, transparent 2px, transparent 7px);opacity:.55}.coverage-donut{flex-wrap:wrap;align-items:center;gap:24px;display:flex}.coverage-donut-chart{flex:none;place-items:center;display:inline-grid;position:relative}.coverage-donut-track{stroke:var(--c-line-200)}.coverage-donut-seen{stroke:var(--c-blue-600);transition:stroke-dashoffset .7s var(--ease)}.coverage-donut-center{flex-direction:column;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.coverage-donut-pct{font-size:var(--fs-xl);color:var(--c-navy-900);font-weight:700;line-height:1}.coverage-donut-sub{font-size:var(--fs-xs);text-transform:uppercase;letter-spacing:.06em}.coverage-legend{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.coverage-legend li{font-size:var(--fs-md);color:var(--c-ink-700);align-items:center;gap:8px;display:flex}.coverage-legend .mono{color:var(--c-ink-900);margin-left:auto;font-weight:700}.coverage-swatch{border-radius:3px;flex:none;width:12px;height:12px}.coverage-swatch-seen{background:var(--c-blue-600)}.coverage-swatch-fresh{background:var(--c-line-200);border:1px solid var(--c-ink-500)}.stagger-in{animation:stagger-rise .32s var(--ease) both}@keyframes stagger-rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){.stagger-in{animation:none}}.empty-state{text-align:center;flex-direction:column;align-items:center;gap:12px;padding:40px 24px;display:flex}.empty-state-icon{background:var(--c-blue-050);width:56px;height:56px;color:var(--c-blue-600);border-radius:50%;place-items:center;display:grid}.empty-state h3{margin:0}.empty-state p{max-width:40ch;margin:0}.empty-state-cta{margin-top:4px}.auth-layout{grid-template-rows:auto 1fr;min-height:100vh;display:grid}.auth-brand{background:var(--grad-brand);color:#fff;align-items:center;padding:20px 24px;display:flex}.auth-brand-inner{width:100%;max-width:420px;margin:0 auto}.auth-wordmark{font-family:var(--font-display);font-weight:700;font-size:var(--fs-xl);letter-spacing:-.01em}.auth-value{font-size:var(--fs-md);color:#ffffffe6;margin:8px 0 0;line-height:1.5}.auth-checks{flex-direction:column;gap:12px;margin:20px 0 0;padding:0;list-style:none;display:none}.auth-checks li{font-size:var(--fs-md);align-items:flex-start;gap:10px;display:flex}.auth-checks .icon{color:var(--c-green-500);margin-top:1px}.auth-panel{background:linear-gradient(160deg, var(--c-surface-50) 0%, var(--c-blue-050) 100%);justify-content:center;align-items:flex-start;padding:32px 24px;display:flex}.auth-card{width:100%;max-width:400px;margin-top:24px}.auth-card h1{font-size:var(--fs-2xl);margin-bottom:20px}.auth-foot{text-align:center;font-size:var(--fs-md);margin:16px 0 0}.auth-hint{font-size:var(--fs-xs);color:var(--c-ink-500);margin-top:4px}@media (width>=1024px){.auth-layout{grid-template-rows:none;grid-template-columns:1fr 1fr}.auth-brand{padding:48px}.auth-brand-inner{max-width:460px}.auth-wordmark{font-size:var(--fs-3xl)}.auth-value{font-size:var(--fs-lg);margin-top:16px}.auth-checks{display:flex}.auth-panel{align-items:center}.auth-card{margin-top:0}}.home-greeting h1{margin-bottom:4px}.home-greeting p{margin:0}.last-sitting{background:var(--c-surface-0);border:1px solid var(--c-line-200);border-radius:var(--radius-md);box-shadow:var(--shadow-card);color:inherit;transition:box-shadow .16s var(--ease), transform .16s var(--ease);border-left-width:3px;align-items:center;gap:14px;padding:14px 18px;display:flex}a.last-sitting:hover{box-shadow:var(--shadow-float);text-decoration:none;transform:translateY(-2px)}.last-sitting-green{border-left-color:var(--c-green-600)}.last-sitting-blue{border-left-color:var(--c-blue-600)}.last-sitting-empty{border-left-color:var(--c-line-200)}.last-sitting-icon{border-radius:var(--radius-md);background:var(--c-surface-50);width:40px;height:40px;color:var(--c-ink-500);flex:none;place-items:center;display:inline-grid}.last-sitting-icon-green{background:var(--c-green-050);color:var(--c-green-600)}.last-sitting-icon-blue{background:var(--c-blue-050);color:var(--c-blue-600)}.last-sitting-main{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.last-sitting-title{font-weight:700;font-family:var(--font-display)}.last-sitting-cta{font-size:var(--fs-sm);color:var(--c-blue-600);flex:none;align-items:center;gap:2px;font-weight:600;display:inline-flex}.mode-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;display:grid}.mode-card{text-align:left;cursor:pointer;background:var(--c-surface-0);border:1px solid var(--c-line-200);border-radius:var(--radius-md);box-shadow:var(--shadow-card);transition:border-color .14s var(--ease), box-shadow .16s var(--ease), transform .16s var(--ease);padding:20px;position:relative;overflow:hidden}.mode-card:before{content:"";height:3px;position:absolute;top:0;left:0;right:0}.mode-green:before{background:var(--c-green-600)}.mode-blue:before{background:var(--c-blue-600)}.mode-card:hover:not(:disabled){box-shadow:var(--shadow-float);transform:translateY(-2px)}.mode-card:disabled{opacity:.6;cursor:not-allowed}.mode-card h3{margin-bottom:6px}.mode-card-icon{border-radius:var(--radius-md);place-items:center;width:40px;height:40px;margin-bottom:12px;display:inline-grid}.mode-icon-green{background:var(--c-green-050);color:var(--c-green-600)}.mode-icon-blue{background:var(--c-blue-050);color:var(--c-blue-600)}.mode-green.selected{border-color:var(--c-green-600);box-shadow:0 0 0 2px var(--c-green-500) inset}.mode-blue.selected{border-color:var(--c-blue-600);box-shadow:0 0 0 2px var(--c-blue-600) inset}.start-form{max-width:480px}.trial-ended{text-align:center}.question-card{padding:28px}.qnum{margin-bottom:12px;font-size:.8125rem}.question-stem{margin:0 0 20px;font-size:1.125rem;line-height:1.6}.options{flex-direction:column;gap:10px;display:flex}.option-card{text-align:left;border:1px solid var(--c-line-200);border-radius:var(--radius-md);background:var(--c-surface-0);cursor:pointer;width:100%;transition:background .12s var(--ease), border-color .12s var(--ease);align-items:center;gap:14px;padding:14px 16px;font-size:1rem;display:flex}.option-card:disabled{cursor:default}.option-badge{background:var(--c-surface-50);border:1px solid var(--c-line-200);width:28px;height:28px;color:var(--c-ink-700);border-radius:50%;flex:none;place-items:center;font-size:.8125rem;font-weight:600;display:grid}.option-text{flex:1}.option-mark{font-size:1.125rem;font-weight:700}.option-mark.correct{color:var(--c-correct)}.option-mark.incorrect{color:var(--c-incorrect)}.option-tag{color:var(--c-green-600);font-size:.75rem;font-weight:600}.option-selected{background:var(--c-blue-100);border-color:var(--c-blue-600);border-width:2px}.option-selected .option-badge{background:var(--c-blue-600);color:#fff;border-color:var(--c-blue-600)}.option-correct{background:var(--c-green-100);border-color:var(--c-green-600)}.option-incorrect{background:var(--c-red-100);border-color:var(--c-incorrect)}.option-correct-unchosen{border:2px solid var(--c-green-600)}.running-tally{font-weight:600}.short-actions{align-items:center}.reveal-block{gap:8px}.reveal-bar{align-items:center;padding:4px 0}.reveal-correct{color:var(--c-green-600);font-weight:700}.reveal-wrong{color:var(--c-incorrect);font-weight:700}.reveal-exp{background:var(--c-surface-50);border-left:3px solid var(--c-green-600);border-radius:var(--radius-sm);margin:0;padding:12px 14px;font-size:.9375rem;line-height:1.6}.exam-shell{z-index:50;background:var(--c-surface-50);flex-direction:column;display:flex;position:fixed;inset:0;overflow-y:auto}.exam-bar{background:var(--c-navy-800);color:#fff;justify-content:space-between;align-items:center;padding:12px 24px;display:flex}.exam-bar-right{align-items:center;gap:16px;display:flex}.exam-answered{color:#ffffffb3}.exam-exit{color:#fff;background:0 0;border:1px solid #fff6}.exam-exit:hover{background:#ffffff1f}.exam-title{font-family:var(--font-display);font-weight:600}.exam-timer{border-radius:var(--radius-sm);padding:4px 12px;font-size:1.5rem;font-weight:600}.exam-timer.warn{color:var(--c-warn)}.exam-timer.urgent{color:#fff;background:var(--c-incorrect);animation:1s infinite pulse}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}.exam-body{flex:1;grid-template-columns:1fr 280px;gap:24px;padding:24px;display:grid}.exam-nav{margin-top:20px}.palette{flex-direction:column;gap:16px;display:flex}.palette-grid{grid-template-columns:repeat(6,1fr);gap:6px;display:grid}.palette-cell{aspect-ratio:1;border:1px solid var(--c-line-200);border-radius:var(--radius-sm);background:var(--c-surface-0);cursor:pointer;color:var(--c-ink-700);font-size:.75rem}.palette-cell.answered{background:var(--c-blue-600);color:#fff;border-color:var(--c-blue-600)}.palette-cell.current{outline:2px solid var(--c-blue-500);outline-offset:1px}.palette-cell.flagged{position:relative}.palette-cell.flagged:after{content:"";background:var(--c-warn);border-radius:50%;width:6px;height:6px;position:absolute;top:2px;right:2px}@media (width<=760px){.exam-body{grid-template-columns:1fr}}.results-headline{flex-wrap:wrap;justify-content:center;align-items:center;gap:28px;display:flex}.results-headline-body{flex:1;min-width:200px}.headline-stats{margin-top:8px}.stat-ok{color:var(--c-green-600)}.stat-bad{color:var(--c-incorrect)}.misconception{border-left:4px solid var(--c-misconcept);background:var(--c-red-050)}.misconception h3{color:var(--c-misconcept);align-items:center;gap:8px;display:flex}.results-subjects{flex-direction:column;gap:18px;display:flex}.results-subject-row{flex-direction:column;gap:8px;display:flex}.results-subject-row>.mastery-bar{flex:1}.results-subject-verdict{justify-content:flex-end;align-items:center;gap:12px;display:flex}.results-subject-insufficient{border-bottom:1px dashed var(--c-line-200);justify-content:space-between;align-items:baseline;gap:12px;padding:8px 0;display:flex}.stat-row{gap:32px;display:flex}.caption{margin-top:12px;font-size:.8125rem}.stat-tiles{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;display:grid}.stat-tile{align-items:center;gap:14px;display:flex}.stat-tile-icon{border-radius:var(--radius-md);background:var(--c-blue-050);width:44px;height:44px;color:var(--c-blue-600);flex:none;place-items:center;display:inline-grid}.mastery-list{flex-direction:column;gap:18px;display:flex}@media (width<=760px){.stat-tiles{grid-template-columns:1fr}}.plan-summary{border-left:3px solid var(--c-green-600);flex-direction:column;gap:12px;display:flex}.plan-summary-main{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.plan-summary-label{text-transform:uppercase;letter-spacing:.06em;color:var(--c-ink-500);font-size:.75rem;display:block}.plan-summary-name{font-size:1.25rem;font-weight:700}.plan-summary-meters{flex-wrap:wrap;gap:8px;display:flex}.plan-summary-bar{border-radius:var(--radius-pill);background:var(--c-surface-50);height:6px;overflow:hidden}.plan-summary-fill{border-radius:var(--radius-pill);background:var(--c-green-600);height:100%;transition:width .2s var(--ease);display:block}.plan-summary-cta{justify-content:flex-end;display:flex}.plan-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;display:grid}.plan-card{background:var(--c-surface-0);border:1px solid var(--c-line-200);border-radius:var(--radius-md);box-shadow:var(--shadow-card);transition:box-shadow .16s var(--ease), transform .16s var(--ease);flex-direction:column;gap:10px;padding:20px;display:flex}.plan-card:hover{box-shadow:var(--shadow-float);transform:translateY(-2px)}.plan-card.plan-current{border-color:var(--c-green-600);box-shadow:0 0 0 2px var(--c-green-500) inset}.plan-card.plan-paid.plan-current{border-color:var(--c-blue-600);box-shadow:0 0 0 2px var(--c-blue-600) inset}.plan-head{justify-content:space-between;align-items:center;gap:8px;display:flex}.plan-badge{background:var(--c-green-100);color:var(--c-green-600)}.plan-price{font-size:1.375rem;font-weight:700}.plan-features{flex-direction:column;gap:6px;margin:4px 0;list-style:none;display:flex}.plan-features li{color:var(--c-ink-700);padding-left:18px;font-size:.9375rem;position:relative}.plan-features li:before{content:"✓";color:var(--c-green-600);font-weight:700;position:absolute;left:0}.plan-cta{margin-top:auto}.plan-card.plan-featured{border-color:var(--plan-paid);box-shadow:var(--shadow-pop);position:relative}.plan-ribbon{border-radius:var(--radius-pill);background:var(--grad-brand);color:#fff;font-size:var(--fs-xs);letter-spacing:.02em;box-shadow:var(--shadow-card);align-items:center;gap:4px;padding:4px 12px;font-weight:700;display:inline-flex;position:absolute;top:0;right:16px;transform:translateY(-50%)}@media (width>=1024px){.plan-card.plan-featured{transform:scale(1.03)}.plan-card.plan-featured:hover{transform:scale(1.03)translateY(-2px)}}.plan-price-slot{min-height:1.6em}.plan-summary.plan-summary-low{border-left-color:var(--c-warn)}.plan-summary.plan-summary-low .plan-summary-fill{background:var(--c-warn)}.plan-section-title{font-size:var(--fs-xl);font-weight:700}.plan-compare-table th[scope=row]{color:var(--c-ink-700);white-space:nowrap;font-weight:600}.plan-compare-table td,.plan-compare-table thead th{text-align:center}.plan-compare-table th[scope=row]{text-align:left}.plan-compare-current{background:var(--c-blue-050)}.plan-compare-tag{font-size:var(--fs-xs);color:var(--plan-paid);text-transform:none;letter-spacing:0;font-weight:600;display:block}.plan-compare-tag.muted,.plan-compare-none{color:var(--c-ink-500)}.plan-faq{flex-direction:column;gap:12px;display:flex}.faq-list{border:1px solid var(--c-line-200);border-radius:var(--radius-md);background:var(--c-surface-0);flex-direction:column;display:flex;overflow:hidden}.faq-item+.faq-item{border-top:1px solid var(--c-line-200)}.faq-q{cursor:pointer;width:100%;font-size:var(--fs-md);color:var(--c-ink-900);text-align:left;background:0 0;border:none;justify-content:space-between;align-items:center;gap:12px;padding:16px 18px;font-weight:600;display:flex}.faq-q:hover{background:var(--c-surface-50)}.faq-chevron{color:var(--c-ink-500);transition:transform .18s var(--ease);flex-shrink:0}.faq-open .faq-chevron{transform:rotate(180deg)}.faq-a{padding:0 18px 16px}.faq-a p{color:var(--c-ink-700);font-size:var(--fs-md);margin:0;line-height:1.55}.plan-trust{border-radius:var(--radius-md);background:var(--surface-raised);border:1px solid var(--c-line-200);color:var(--c-ink-500);font-size:var(--fs-sm);align-items:flex-start;gap:10px;padding:14px 16px;line-height:1.5;display:flex}.plan-trust svg{color:var(--plan-free);flex-shrink:0;margin-top:2px}.mode-card-wrap{flex-direction:column;display:flex}.mode-card-upgrade{border-radius:var(--radius-sm);font-size:var(--fs-sm);color:var(--plan-paid);background:var(--c-blue-050);border:1px solid var(--c-blue-100);transition:background .15s var(--ease);justify-content:center;align-items:center;gap:4px;margin-top:8px;padding:8px 12px;font-weight:600;text-decoration:none;display:inline-flex}.mode-card-upgrade:hover{background:var(--c-blue-100)}.alert-body{flex-direction:column;align-items:flex-start;gap:10px;display:flex}.alert-cta{align-self:flex-start}@media (width<=1024px){.plan-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=760px){.mode-grid,.plan-grid{grid-template-columns:1fr}.stat-row{flex-direction:column;gap:16px}.start-form{max-width:none}.question-card{padding:20px}.results-headline{gap:20px}}.history h1{margin:0}.history-list{flex-direction:column;gap:12px;display:flex}.history-row{color:inherit;border-left:3px solid var(--c-line-200);transition:box-shadow .16s var(--ease), transform .16s var(--ease);align-items:center;gap:16px;text-decoration:none;display:flex}.history-row:hover{box-shadow:var(--shadow-float);text-decoration:none;transform:translateY(-2px)}.history-row.history-blue{border-left-color:var(--c-blue-600)}.history-row.history-green{border-left-color:var(--c-green-600)}.history-row-lead{flex:1;align-items:center;gap:12px;min-width:0;display:flex}.history-flow-icon{border-radius:var(--radius-sm);flex:none;place-items:center;width:38px;height:38px;display:grid}.history-icon-blue{background:var(--c-blue-050);color:var(--c-blue-700)}.history-icon-green{background:var(--c-green-050);color:var(--c-teal-700)}.history-row-main{flex-direction:column;gap:4px;min-width:0;display:flex}.history-row-title{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.history-chip-blue{background:var(--c-blue-050);color:var(--c-blue-700)}.history-chip-green{background:var(--c-green-050);color:var(--c-teal-700)}.history-date{font-size:var(--fs-sm)}.history-row-stats{align-items:center;gap:20px;display:flex}.history-stat{flex-direction:column;align-items:flex-end;line-height:1.1;display:flex}.history-stat-value{font-size:var(--fs-lg);font-weight:700}.history-stat-label{font-size:var(--fs-xs);text-transform:uppercase;letter-spacing:.05em}.band-strip{gap:3px;display:flex}.band-dot{border-radius:2px;width:8px;height:16px}.history-chevron{color:var(--c-ink-500);flex:none}.history-detail-head{justify-content:space-between;align-items:center;gap:12px;display:flex}@media (width<=640px){.history-row{flex-wrap:wrap;gap:12px}.history-row-stats{justify-content:flex-start;gap:24px;width:100%}.history-stat{align-items:flex-start}.history-chevron{display:none}}.profile h1{margin:0}.profile h2{font-size:var(--fs-lg);margin:0 0 4px}.profile-section{gap:12px}.profile-identity{align-items:flex-start;gap:20px;display:flex}.profile-avatar{border-radius:var(--radius-pill);color:#fff;width:64px;height:64px;font-family:var(--font-display);font-size:var(--fs-xl);letter-spacing:.02em;box-shadow:var(--shadow-card);flex:none;place-items:center;font-weight:700;display:grid}.profile-identity-body{flex-direction:column;flex:1;gap:6px;min-width:0;display:flex}.profile-name-row{align-items:center;gap:8px;display:flex}.profile-name{font-size:var(--fs-xl)}.profile-name-edit{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.profile-name-edit .input{max-width:280px}.icon-btn{border-radius:var(--radius-sm);width:30px;height:30px;color:var(--c-ink-500);cursor:pointer;transition:background .15s var(--ease), color .15s var(--ease);background:0 0;border:1px solid #0000;place-items:center;display:grid}.icon-btn:hover{background:var(--c-blue-050);color:var(--c-blue-700)}.profile-email{font-size:var(--fs-md)}.profile-meta{flex-wrap:wrap;gap:10px}.plan-badge{color:#fff;border:none;font-weight:600}.plan-badge-free{background:var(--plan-free)}.plan-badge-paid{background:var(--plan-paid)}.profile-form h3{margin:0 0 16px}.profile-form .field:last-of-type{margin-bottom:20px}.profile-hint{font-size:var(--fs-xs)}.profile-2fa{flex-direction:column;gap:16px;display:flex}.profile-2fa h3{margin:0 0 2px}.profile-2fa-head{align-items:flex-start;gap:12px;display:flex}.profile-2fa-on{color:var(--c-green-600);flex:none}.profile-2fa-off{color:var(--c-warn);flex:none}.profile-2fa-enroll{flex-wrap:wrap;align-items:flex-start;gap:20px;display:flex}.profile-2fa-qr{border-radius:var(--radius-sm);border:1px solid var(--c-line-200);background:#fff;flex:none;padding:8px}.profile-2fa-detail{flex-direction:column;flex:1;gap:10px;min-width:220px;display:flex}.profile-2fa-secret{border-radius:var(--radius-sm);background:var(--c-surface-50);border:1px dashed var(--c-line-200);font-size:var(--fs-md);letter-spacing:.08em;-webkit-user-select:all;user-select:all;align-self:flex-start;padding:8px 12px;display:inline-block}.profile-2fa-note{font-size:var(--fs-sm);color:var(--c-ink-700);margin:0}.profile-session{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.profile-session-info{color:var(--c-ink-700);align-items:center;gap:10px;display:flex}.profile-device-id{font-size:var(--fs-sm);color:var(--c-ink-500)}@media (width<=480px){.profile-identity{gap:14px}.profile-avatar{width:52px;height:52px;font-size:var(--fs-lg)}}.filters{flex-wrap:wrap;gap:12px;display:flex}.filters .input{flex:1;min-width:160px}.pager,.actions{margin-top:16px}.modal-backdrop{z-index:50;background:#08213d73;justify-content:center;align-items:flex-start;padding:48px 16px;display:flex;position:fixed;inset:0;overflow-y:auto}.modal{width:100%;max-width:640px;box-shadow:var(--shadow-float)}.modal-head{margin-bottom:8px}.modal-head h2{margin:0;font-size:1.25rem}.tabs{margin-bottom:8px}.limits-editor .lf{border:1px solid var(--c-line-200);border-radius:var(--radius-sm);margin:0;padding:12px 16px}.limits-editor legend{color:var(--c-ink-700);padding:0 6px;font-size:.8125rem;font-weight:600}.limits-editor .row{flex-wrap:wrap;gap:12px}.labeled-num{flex-direction:column;gap:4px;font-size:.75rem;display:flex}.check{align-items:center;gap:6px;font-size:.875rem;display:inline-flex}.invite-link{text-overflow:ellipsis;white-space:nowrap;max-width:360px;overflow:hidden}.config-dump{background:var(--c-navy-900);color:#cbd5e1;border-radius:var(--radius-sm);max-height:320px;padding:16px;font-size:.75rem;overflow-x:auto}.stat-row{flex-wrap:wrap;gap:32px;display:flex}.stat-value{font-size:1.75rem;font-weight:700}.stat-label{font-size:.8125rem}.stat{flex-direction:column;gap:4px;display:flex}