:root{--nova-bg-base:#05081a;--nova-bg-elevated:#0b1230;--nova-bg-panel:#101938;--nova-bg-panel-hover:#141f47;--nova-border-subtle:#b8c1e024;--nova-border-strong:#b8c1e047;--nova-cyan:#19c2ff;--nova-blue:#3a7bff;--nova-violet:#7b5cff;--nova-magenta:#d94dff;--nova-orange:#ff9a3d;--nova-text-primary:#f5f7ff;--nova-text-secondary:#b8c1e0;--nova-text-muted:#9aa3c4;--nova-success:#2fd490;--nova-success-bg:#2fd49024;--nova-danger:#ff6b81;--nova-danger-bg:#ff6b8124;--nova-warning:var(--nova-orange);--nova-warning-bg:#ff9a3d24;--nova-gradient-hero:radial-gradient(120% 140% at 15% -10%, #7b5cff59 0%, #05081a00 55%), radial-gradient(90% 120% at 100% 0%, #19c2ff47 0%, #05081a00 50%), linear-gradient(180deg, var(--nova-bg-elevated) 0%, var(--nova-bg-base) 65%);--nova-gradient-cta:linear-gradient(135deg, var(--nova-cyan) 0%, var(--nova-blue) 50%, var(--nova-violet) 100%);--nova-gradient-brand-text:linear-gradient(120deg, var(--nova-cyan) 0%, var(--nova-violet) 55%, var(--nova-magenta) 100%);--nova-gradient-progress:linear-gradient(90deg, var(--nova-cyan) 0%, var(--nova-blue) 55%, var(--nova-violet) 100%);--nova-gradient-panel-sheen:linear-gradient(160deg, #ffffff0f 0%, #fff0 40%);--nova-space-1:.25rem;--nova-space-2:.5rem;--nova-space-3:.75rem;--nova-space-4:1rem;--nova-space-5:1.5rem;--nova-space-6:2rem;--nova-space-7:2.5rem;--nova-space-8:3.5rem;--nova-radius-sm:8px;--nova-radius-md:14px;--nova-radius-lg:20px;--nova-radius-xl:28px;--nova-radius-pill:999px;--nova-shadow-sm:0 1px 2px #02041066;--nova-shadow-md:0 8px 24px #02041073;--nova-shadow-lg:0 20px 48px #0204108c;--nova-glow-cyan:0 0 0 1px #19c2ff40, 0 0 32px #19c2ff47;--nova-glow-violet:0 0 0 1px #7b5cff40, 0 0 32px #7b5cff47;--nova-glow-magenta:0 0 0 1px #d94dff40, 0 0 32px #d94dff47;--nova-font-family:"Segoe UI", Tahoma, "Geeza Pro", Arial, sans-serif;--nova-font-size-xs:.75rem;--nova-font-size-sm:.85rem;--nova-font-size-md:1rem;--nova-font-size-lg:1.15rem;--nova-font-size-xl:1.5rem;--nova-font-size-2xl:2rem;--nova-font-size-3xl:2.75rem;--nova-line-height-tight:1.25;--nova-line-height-base:1.6;--nova-line-height-loose:1.85;--nova-font-weight-regular:400;--nova-font-weight-medium:500;--nova-font-weight-semibold:600;--nova-font-weight-bold:700;--nova-duration-fast:.12s;--nova-duration-base:.2s;--nova-duration-slow:.36s;--nova-ease-standard:cubic-bezier(.2, .8, .2, 1);--nova-ease-emphasized:cubic-bezier(.16, 1, .3, 1);--nova-z-shell-header:20;--nova-z-shell-rail:10;--nova-z-overlay:40;--nova-z-modal:50}
.nova-card{background:var(--nova-bg-panel);border:1px solid var(--nova-border-subtle);border-radius:var(--nova-radius-lg);padding:var(--nova-space-5);box-shadow:var(--nova-shadow-md);transition:border-color var(--nova-duration-base) var(--nova-ease-standard), box-shadow var(--nova-duration-base) var(--nova-ease-standard), transform var(--nova-duration-base) var(--nova-ease-standard);position:relative;overflow:hidden}.nova-card:before{content:"";background:var(--nova-gradient-panel-sheen);pointer-events:none;position:absolute;inset:0}.nova-card--elevated{background:var(--nova-bg-elevated)}.nova-card--interactive:hover{border-color:var(--nova-border-strong);box-shadow:var(--nova-shadow-lg);transform:translateY(-2px)}.nova-card--glow-cyan{box-shadow:var(--nova-glow-cyan), var(--nova-shadow-md)}.nova-card--glow-violet{box-shadow:var(--nova-glow-violet), var(--nova-shadow-md)}.nova-card--glow-magenta{box-shadow:var(--nova-glow-magenta), var(--nova-shadow-md)}.nova-card--padded-lg{padding:var(--nova-space-6)}.nova-card--padded-sm{padding:var(--nova-space-4)}.nova-section-header{justify-content:space-between;align-items:flex-end;gap:var(--nova-space-4);margin-bottom:var(--nova-space-4);display:flex}.nova-section-header__text{gap:var(--nova-space-1);flex-direction:column;display:flex}.nova-section-header__eyebrow{font-size:var(--nova-font-size-xs);font-weight:var(--nova-font-weight-semibold);letter-spacing:.04em;color:var(--nova-cyan);text-transform:uppercase}.nova-section-header__title{font-size:var(--nova-font-size-xl);font-weight:var(--nova-font-weight-bold);color:var(--nova-text-primary);line-height:var(--nova-line-height-tight);margin:0}.nova-section-header__subtitle{font-size:var(--nova-font-size-sm);color:var(--nova-text-secondary);line-height:var(--nova-line-height-base);margin:0}.nova-section-header__action{flex-shrink:0}.nova-badge{align-items:center;gap:var(--nova-space-1);border-radius:var(--nova-radius-pill);font-size:var(--nova-font-size-xs);font-weight:var(--nova-font-weight-semibold);white-space:nowrap;color:var(--nova-text-secondary);background:#b8c1e01f;border:1px solid #0000;padding:.3rem .75rem;display:inline-flex}.nova-badge--dot:before{content:"";background:currentColor;border-radius:50%;width:.4rem;height:.4rem}.nova-badge--cyan{color:var(--nova-cyan);background:#19c2ff24}.nova-badge--violet{color:#b7a6ff;background:#7b5cff29}.nova-badge--magenta{color:#eeaeff;background:#d94dff29}.nova-badge--orange{background:var(--nova-warning-bg);color:var(--nova-orange)}.nova-badge--success{background:var(--nova-success-bg);color:var(--nova-success)}.nova-badge--danger{background:var(--nova-danger-bg);color:var(--nova-danger)}.nova-progress{gap:var(--nova-space-2);flex-direction:column;width:100%;display:flex}.nova-progress__labels{font-size:var(--nova-font-size-xs);color:var(--nova-text-muted);justify-content:space-between;display:flex}.nova-progress__track{border-radius:var(--nova-radius-pill);background:#b8c1e01f;width:100%;height:.5rem;position:relative;overflow:hidden}.nova-progress__fill{border-radius:var(--nova-radius-pill);background:var(--nova-gradient-progress);height:100%;transition:width var(--nova-duration-slow) var(--nova-ease-emphasized)}.nova-progress-pill{align-items:center;gap:var(--nova-space-2);border-radius:var(--nova-radius-pill);font-size:var(--nova-font-size-xs);color:var(--nova-text-secondary);background:#b8c1e01a;padding:.3rem .6rem .3rem .3rem;display:inline-flex}.nova-progress-pill__ring{background:var(--nova-gradient-progress);width:1.35rem;height:1.35rem;color:var(--nova-bg-base);font-weight:var(--nova-font-weight-bold);border-radius:50%;justify-content:center;align-items:center;font-size:.65rem;display:inline-flex}.nova-button{justify-content:center;align-items:center;gap:var(--nova-space-2);border-radius:var(--nova-radius-md);font-size:var(--nova-font-size-sm);font-weight:var(--nova-font-weight-semibold);cursor:pointer;transition:transform var(--nova-duration-fast) var(--nova-ease-standard), box-shadow var(--nova-duration-base) var(--nova-ease-standard), border-color var(--nova-duration-base) var(--nova-ease-standard), background var(--nova-duration-base) var(--nova-ease-standard);border:1px solid #0000;padding:.7rem 1.4rem;display:inline-flex}.nova-button:active{transform:translateY(1px)scale(.99)}.nova-button:focus-visible{outline:2px solid var(--nova-cyan);outline-offset:2px}.nova-button--primary{background:var(--nova-gradient-cta);color:#04070f}.nova-button--primary:hover{box-shadow:var(--nova-glow-cyan)}.nova-button--secondary{background:var(--nova-bg-panel-hover);color:var(--nova-text-primary);border-color:var(--nova-border-strong)}.nova-button--secondary:hover{border-color:var(--nova-cyan)}.nova-button--ghost{color:var(--nova-text-secondary);border-color:var(--nova-border-subtle);background:0 0}.nova-button--ghost:hover{color:var(--nova-text-primary);border-color:var(--nova-border-strong)}.nova-button:disabled{opacity:1;color:var(--nova-text-muted);border-color:var(--nova-border-subtle);cursor:not-allowed;box-shadow:none;background:#b8c1e01f;transform:none}.nova-button--full{width:100%}.nova-state{text-align:center;justify-content:center;align-items:center;gap:var(--nova-space-3);padding:var(--nova-space-7) var(--nova-space-5);border-radius:var(--nova-radius-lg);border:1px dashed var(--nova-border-subtle);color:var(--nova-text-secondary);flex-direction:column;display:flex}.nova-state__icon{font-size:1.75rem;line-height:1}.nova-state__title{font-size:var(--nova-font-size-md);font-weight:var(--nova-font-weight-semibold);color:var(--nova-text-primary);margin:0}.nova-state__message{font-size:var(--nova-font-size-sm);color:var(--nova-text-secondary);max-width:32ch;margin:0}.nova-state--error{background:var(--nova-danger-bg);border-color:#ff6b8159}.nova-state--error .nova-state__title{color:var(--nova-danger)}.nova-state--loading{border-style:solid;border-color:var(--nova-border-subtle);background:#b8c1e00d}.nova-spinner{border:2px solid #b8c1e033;border-top-color:var(--nova-cyan);border-radius:50%;width:1.6rem;height:1.6rem;animation:.8s linear infinite nova-spin}@keyframes nova-spin{to{transform:rotate(360deg)}}.nova-metric-tile{gap:var(--nova-space-1);padding:var(--nova-space-4);border-radius:var(--nova-radius-md);border:1px solid var(--nova-border-subtle);background:#b8c1e00f;flex-direction:column;display:flex}.nova-metric-tile__label{font-size:var(--nova-font-size-xs);color:var(--nova-text-muted)}.nova-metric-tile__value{font-size:var(--nova-font-size-2xl);font-weight:var(--nova-font-weight-bold);color:var(--nova-text-primary);line-height:var(--nova-line-height-tight)}.nova-metric-tile__hint{font-size:var(--nova-font-size-xs);color:var(--nova-text-secondary)}.nova-metric-tile--accent-cyan .nova-metric-tile__value{color:var(--nova-cyan)}.nova-metric-tile--accent-violet .nova-metric-tile__value{color:#b7a6ff}.nova-metric-tile--accent-orange .nova-metric-tile__value{color:var(--nova-orange)}.nova-journey{gap:var(--nova-space-3);flex-direction:column;display:flex}.nova-journey--horizontal{flex-flow:wrap;align-items:center}.nova-journey-step{align-items:center;gap:var(--nova-space-3);display:flex}.nova-journey-step__marker{width:1.75rem;height:1.75rem;font-size:var(--nova-font-size-xs);font-weight:var(--nova-font-weight-bold);color:var(--nova-text-muted);border:1px solid var(--nova-border-subtle);background:#b8c1e01a;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.nova-journey-step__label{font-size:var(--nova-font-size-sm);color:var(--nova-text-secondary)}.nova-journey-step--done .nova-journey-step__marker{background:var(--nova-success-bg);color:var(--nova-success);border-color:#0000}.nova-journey-step--done .nova-journey-step__label{color:var(--nova-text-secondary)}.nova-journey-step--current .nova-journey-step__marker{background:var(--nova-gradient-cta);color:#04070f;box-shadow:var(--nova-glow-cyan);border-color:#0000}.nova-journey-step--current .nova-journey-step__label{color:var(--nova-text-primary);font-weight:var(--nova-font-weight-semibold)}.nova-journey--horizontal .nova-journey-step{border-radius:var(--nova-radius-pill);background:#b8c1e00f;padding:.35rem .75rem .35rem .35rem}.nova-journey--horizontal .nova-journey-step--current{background:#19c2ff1a}.nova-glow-divider{height:1px;margin:var(--nova-space-5) 0;background:linear-gradient(90deg,#19c2ff00 0%,#19c2ff80 25%,#d94dff80 75%,#d94dff00 100%);border:none;position:relative}
.nova-shell{background:var(--nova-gradient-hero);min-height:100vh;color:var(--nova-text-primary);flex-direction:column;display:flex}.nova-shell__chrome{gap:var(--nova-space-3);flex-direction:column;flex-shrink:0;display:flex;position:static}.nova-shell__header{justify-content:space-between;align-items:center;gap:var(--nova-space-4);padding:var(--nova-space-4) var(--nova-space-6);background:var(--nova-bg-base);border-bottom:1px solid var(--nova-border-subtle);display:flex;position:static}.nova-shell__brand{align-items:center;gap:var(--nova-space-3);text-decoration:none;display:flex}.nova-shell__brand-mark{border-radius:var(--nova-radius-md);background:var(--nova-gradient-cta);color:#04070f;width:2.5rem;height:2.5rem;font-weight:var(--nova-font-weight-bold);font-size:var(--nova-font-size-lg);box-shadow:var(--nova-glow-cyan);flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.nova-shell__brand-text{line-height:var(--nova-line-height-tight);flex-direction:column;display:flex}.nova-shell__brand-title{font-size:var(--nova-font-size-lg);font-weight:var(--nova-font-weight-bold);background:var(--nova-gradient-brand-text);color:#0000;-webkit-background-clip:text;background-clip:text}.nova-shell__brand-tagline{font-size:var(--nova-font-size-xs);color:var(--nova-text-secondary)}.nova-shell__nav{align-items:center;gap:var(--nova-space-2);display:flex}.nova-shell__nav-link{border-radius:var(--nova-radius-pill);font-size:var(--nova-font-size-sm);font-weight:var(--nova-font-weight-medium);color:var(--nova-text-secondary);transition:background var(--nova-duration-base) var(--nova-ease-standard), color var(--nova-duration-base) var(--nova-ease-standard);padding:.45rem .9rem;text-decoration:none}.nova-shell__nav-link:hover{color:var(--nova-text-primary);background:#b8c1e01a}.nova-shell__nav-link--active{color:var(--nova-text-primary);background:#19c2ff24}.nova-shell__identity{align-items:center;gap:var(--nova-space-3);border-inline-start:1px solid var(--nova-border-subtle);padding-inline-start:var(--nova-space-3);display:flex}.nova-shell__identity-text{line-height:var(--nova-line-height-tight);text-align:end;flex-direction:column;display:flex}.nova-shell__identity-name{font-size:var(--nova-font-size-sm);font-weight:var(--nova-font-weight-semibold);color:var(--nova-text-primary)}.nova-shell__identity-meta{font-size:var(--nova-font-size-xs);color:var(--nova-text-secondary)}.nova-shell__identity-avatar{color:#cdbfff;width:2.25rem;height:2.25rem;font-weight:var(--nova-font-weight-bold);font-size:var(--nova-font-size-sm);background:#7b5cff38;border:1px solid #7b5cff66;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.nova-shell__body{gap:var(--nova-space-6);width:100%;max-width:1180px;padding:var(--nova-space-4) var(--nova-space-6) var(--nova-space-6);flex:auto;grid-template-columns:1fr;margin:0 auto;display:grid;position:static}.nova-shell__body--with-rail{grid-template-columns:minmax(0,1fr) 320px;align-items:start}.nova-shell__main{gap:var(--nova-space-5);flex-direction:column;min-width:0;display:flex}.nova-shell__rail{gap:var(--nova-space-4);flex-direction:column;display:flex;position:static}@media (max-width:900px){.nova-shell__body--with-rail{grid-template-columns:1fr}.nova-shell__rail{position:static}.nova-shell__header{padding:var(--nova-space-3) var(--nova-space-4);flex-wrap:wrap}.nova-shell__nav{order:3;justify-content:center;width:100%}.nova-shell__identity-text{display:none}}.nova-pilot-notice{width:100%;max-width:1180px;padding:0 var(--nova-space-6);gap:var(--nova-space-2);flex-direction:column;flex-shrink:0;margin:0 auto;display:flex;position:static}.nova-pilot-notice__badge{border-radius:var(--nova-radius-pill);font-size:var(--nova-font-size-xs);font-weight:var(--nova-font-weight-semibold);background:var(--nova-warning-bg);color:var(--nova-orange);border:1px solid #ff9a3d73;align-self:flex-start;align-items:center;padding:.3rem .75rem;display:inline-flex}.nova-pilot-notice__text{padding:var(--nova-space-3) var(--nova-space-4);border-radius:var(--nova-radius-md);font-size:var(--nova-font-size-sm);line-height:var(--nova-line-height-base);color:var(--nova-text-primary);background:var(--nova-bg-panel);border:1px solid var(--nova-border-strong);margin:0}@media (max-width:560px){.nova-shell__body{padding:var(--nova-space-4)}.nova-pilot-notice{padding:0 var(--nova-space-4)}.nova-shell__brand-tagline{display:none}}
.nova-home{gap:var(--nova-space-6);padding-bottom:var(--nova-space-6);flex-direction:column;display:flex}.nova-home__hero{position:relative}.nova-home__hero-eyebrow{margin:0 0 var(--nova-space-2);font-size:var(--nova-font-size-sm);color:var(--nova-cyan);font-weight:var(--nova-font-weight-semibold)}.nova-home__hero-title{margin:0 0 var(--nova-space-3);font-size:var(--nova-font-size-3xl);line-height:var(--nova-line-height-tight);font-weight:var(--nova-font-weight-bold);max-width:32ch}.nova-home__hero-subtitle{margin:0 0 var(--nova-space-5);font-size:var(--nova-font-size-md);color:var(--nova-text-secondary);max-width:52ch;line-height:var(--nova-line-height-base)}.nova-home__hero-actions{gap:var(--nova-space-3);flex-wrap:wrap;display:flex}.nova-home__row{gap:var(--nova-space-5);grid-template-columns:2fr 1fr;align-items:stretch;display:grid}.nova-home__continue{gap:var(--nova-space-4);flex-direction:column;height:100%;display:flex}.nova-home__continue-meta{align-items:center;gap:var(--nova-space-2);flex-wrap:wrap;display:flex}.nova-home__continue-title{font-size:var(--nova-font-size-lg);font-weight:var(--nova-font-weight-semibold);margin:0}.nova-home__continue-error{font-size:var(--nova-font-size-sm);color:var(--nova-danger);margin:0}.nova-home__recommendation{gap:var(--nova-space-3);flex-direction:column;height:100%;display:flex}.nova-home__recommendation-title{font-size:var(--nova-font-size-md);font-weight:var(--nova-font-weight-semibold);color:var(--nova-orange);margin:0}.nova-home__recommendation-message{font-size:var(--nova-font-size-sm);color:var(--nova-text-secondary);line-height:var(--nova-line-height-base);flex:1;margin:0}.nova-home__subjects-grid{gap:var(--nova-space-4);grid-template-columns:repeat(auto-fill,minmax(220px,1fr));display:grid}.nova-home__subject-card{gap:var(--nova-space-3);flex-direction:column;display:flex}.nova-home__subject-title{font-size:var(--nova-font-size-md);font-weight:var(--nova-font-weight-semibold);margin:0}.nova-home__subject-subtitle{font-size:var(--nova-font-size-xs);color:var(--nova-text-muted);margin:0}.nova-home__metrics-grid{gap:var(--nova-space-4);grid-template-columns:repeat(auto-fit,minmax(160px,1fr));display:grid}.nova-home__activity-list{gap:var(--nova-space-2);flex-direction:column;display:flex}.nova-home__activity-item{align-items:center;gap:var(--nova-space-3);padding:var(--nova-space-3) var(--nova-space-4);border-radius:var(--nova-radius-md);background:#b8c1e00d;display:flex}.nova-home__activity-dot{background:var(--nova-text-muted);border-radius:50%;flex-shrink:0;width:.55rem;height:.55rem}.nova-home__activity-dot--success{background:var(--nova-success)}.nova-home__activity-dot--violet{background:#b7a6ff}.nova-home__activity-text{font-size:var(--nova-font-size-sm);color:var(--nova-text-secondary);flex:1}.nova-home__activity-time{font-size:var(--nova-font-size-xs);color:var(--nova-text-muted);white-space:nowrap}.nova-practice-evidence-preview{gap:var(--nova-space-3);flex-direction:column;display:flex}.nova-practice-evidence-preview__note,.nova-practice-evidence-preview__message{font-size:var(--nova-font-size-sm);color:var(--nova-text-secondary);line-height:var(--nova-line-height-base);margin:0}.nova-practice-evidence-preview__note--warning{color:var(--nova-warning)}.nova-practice-evidence-preview__count{font-size:var(--nova-font-size-sm);font-weight:var(--nova-font-weight-semibold);color:var(--nova-text-primary);margin:0}.nova-practice-evidence-preview__skills{gap:var(--nova-space-2);flex-wrap:wrap;margin:0;padding:0;list-style:none;display:flex}.nova-practice-evidence-preview__scope-note{padding-top:var(--nova-space-2);border-top:1px solid var(--nova-border-subtle);font-size:var(--nova-font-size-xs);color:var(--nova-text-muted);line-height:var(--nova-line-height-base);margin:0}@media (max-width:860px){.nova-home__row{grid-template-columns:1fr}.nova-home__hero-title{font-size:var(--nova-font-size-2xl)}}
.nova-lesson-shell{gap:var(--nova-space-5);padding-top:var(--nova-space-4);flex-direction:column;display:flex}.nova-lesson-shell__header{gap:var(--nova-space-3);flex-direction:column;display:flex}.nova-lesson-shell__title-row{justify-content:space-between;align-items:center;gap:var(--nova-space-4);flex-wrap:wrap;display:flex}.nova-lesson-shell__title{font-size:var(--nova-font-size-xl);font-weight:var(--nova-font-weight-bold);color:var(--nova-text-primary);margin:0}.nova-lesson-shell__badges{gap:var(--nova-space-2);flex-wrap:wrap;display:flex}.nova-lesson-shell__grid{gap:var(--nova-space-5);grid-template-columns:minmax(0,1fr);align-items:start;display:grid}.nova-lesson-shell__grid--rail{grid-template-columns:220px minmax(0,1fr)}.nova-lesson-shell__grid--panel{grid-template-columns:minmax(0,1fr) 280px}.nova-lesson-shell__grid--rail-panel{grid-template-columns:220px minmax(0,1fr) 280px}.nova-lesson-shell__rail{align-self:start;position:static}.nova-lesson-shell__main{gap:var(--nova-space-4);flex-direction:column;min-width:0;display:flex;position:static}.nova-lesson-shell__panel{align-self:start;position:static}.nova-lesson-shell__guide-text{font-size:var(--nova-font-size-sm);color:var(--nova-text-secondary);line-height:var(--nova-line-height-base);margin:0}.nova-legacy-demo-surface{border-radius:var(--nova-radius-lg);box-shadow:var(--nova-shadow-lg);background:#f5f6f8;position:static;overflow:hidden}.nova-legacy-demo-surface .lesson-demo{padding-top:var(--nova-space-5)}.nova-lesson-shell__actions{align-items:center;gap:var(--nova-space-3);padding-top:var(--nova-space-3);border-top:1px solid var(--nova-border-subtle);flex-wrap:wrap;display:flex}@media (max-width:1080px){.nova-lesson-shell__grid--rail-panel{grid-template-columns:minmax(0,1fr) 280px}.nova-lesson-shell__grid--rail-panel .nova-lesson-shell__rail,.nova-lesson-shell__grid--rail .nova-lesson-shell__rail{grid-column:1/-1;position:static}}@media (max-width:760px){.nova-lesson-shell__grid--rail-panel,.nova-lesson-shell__grid--panel{grid-template-columns:1fr}.nova-lesson-shell__panel{position:static}}
.nova-runtime-activity{gap:var(--nova-space-4);flex-direction:column;display:flex}.nova-runtime-activity__header{gap:var(--nova-space-2);flex-direction:column;display:flex}.nova-runtime-activity__title{font-size:var(--nova-font-size-lg);font-weight:var(--nova-font-weight-bold);color:var(--nova-text-primary);line-height:var(--nova-line-height-tight);margin:0}.nova-runtime-activity__body{font-size:var(--nova-font-size-md);color:var(--nova-text-primary);line-height:var(--nova-line-height-base);margin:0}.nova-runtime-activity__math{border:1px solid var(--nova-border-subtle);border-radius:var(--nova-radius-md);padding:var(--nova-space-3) var(--nova-space-4);color:var(--nova-text-primary);text-align:left;background:#b8c1e014;font-family:Cambria Math,Times New Roman,serif;overflow-x:auto}.nova-runtime-activity__steps{gap:var(--nova-space-3);flex-direction:column;margin:0;padding-inline-start:1.25rem;display:flex}.nova-runtime-activity__step p{margin:0 0 var(--nova-space-2);color:var(--nova-text-secondary);line-height:var(--nova-line-height-base)}.nova-runtime-activity__answer{border-top:1px solid var(--nova-border-subtle);padding-top:var(--nova-space-4)}.nova-runtime-activity__hint-action{padding-top:var(--nova-space-1)}.nova-runtime-answer{gap:var(--nova-space-3);flex-direction:column;display:flex}.nova-runtime-answer__note{color:var(--nova-text-secondary);font-size:var(--nova-font-size-sm);line-height:var(--nova-line-height-base);margin:0}.nova-runtime-answer__choices{gap:var(--nova-space-3);flex-direction:column;display:flex}.nova-runtime-choice{justify-content:space-between;align-items:center;gap:var(--nova-space-3);min-height:44px;padding:var(--nova-space-3) var(--nova-space-4);border-radius:var(--nova-radius-md);border:1px solid var(--nova-border-subtle);color:var(--nova-text-primary);font-size:var(--nova-font-size-md);text-align:start;cursor:pointer;transition:border-color var(--nova-duration-base) var(--nova-ease-standard), background var(--nova-duration-base) var(--nova-ease-standard);background:#b8c1e00d;display:flex}.nova-runtime-choice:focus-visible{outline:2px solid var(--nova-cyan);outline-offset:2px}.nova-runtime-choice--selected{border-color:var(--nova-cyan);box-shadow:var(--nova-glow-cyan);background:#19c2ff1f}.nova-runtime-choice:disabled{opacity:1;color:var(--nova-text-muted);border-color:var(--nova-border-subtle);cursor:not-allowed;background:#b8c1e014}.nova-runtime-choice__label{flex:1}.nova-runtime-choice__math{color:var(--nova-text-secondary);direction:ltr;font-family:Cambria Math,Times New Roman,serif}.nova-runtime-answer__label{font-size:var(--nova-font-size-sm);color:var(--nova-text-secondary)}.nova-runtime-answer__input{width:100%;min-height:44px;padding:var(--nova-space-3) var(--nova-space-4);border-radius:var(--nova-radius-md);border:1px solid var(--nova-border-strong);background:var(--nova-bg-panel-hover);color:var(--nova-text-primary);font-size:var(--nova-font-size-md)}.nova-runtime-answer__input:focus-visible{outline:2px solid var(--nova-cyan);outline-offset:2px}.nova-runtime-feedback{align-items:flex-start;gap:var(--nova-space-3);padding:var(--nova-space-3) var(--nova-space-4);border-radius:var(--nova-radius-md);font-size:var(--nova-font-size-sm);line-height:var(--nova-line-height-base);display:flex}.nova-runtime-feedback__icon{width:1.5rem;height:1.5rem;font-weight:var(--nova-font-weight-bold);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.nova-runtime-feedback__message{margin:0}.nova-runtime-feedback--correct{background:var(--nova-success-bg);color:var(--nova-success)}.nova-runtime-feedback--correct .nova-runtime-feedback__icon{color:var(--nova-success);background:#2fd49040}.nova-runtime-feedback--incorrect{background:var(--nova-danger-bg);color:var(--nova-danger)}.nova-runtime-feedback--incorrect .nova-runtime-feedback__icon{color:var(--nova-danger);background:#ff6b8140}.nova-runtime-journey{gap:var(--nova-space-3);padding:var(--nova-space-3) var(--nova-space-4);border-radius:var(--nova-radius-lg);background:var(--nova-bg-panel);border:1px solid var(--nova-border-subtle);flex-direction:column;display:flex}.nova-runtime-journey .nova-journey--horizontal{padding-bottom:var(--nova-space-1);scrollbar-width:thin;-webkit-overflow-scrolling:touch;flex-wrap:nowrap;overflow-x:auto}.nova-runtime-journey .nova-journey-step{flex-shrink:0}.nova-runtime-journey__meta{gap:var(--nova-space-2) var(--nova-space-4);font-size:var(--nova-font-size-xs);color:var(--nova-text-muted);flex-wrap:wrap;display:flex}.nova-runtime-journey__stage{font-weight:var(--nova-font-weight-semibold);color:var(--nova-text-secondary)}.nova-runtime-hint-panel{border-radius:var(--nova-radius-lg);background:#7b5cff14;border:1px solid #7b5cff66;overflow:hidden}.nova-runtime-hint-panel__header{align-items:center;gap:var(--nova-space-2);padding:var(--nova-space-3) var(--nova-space-4);font-weight:var(--nova-font-weight-semibold);color:#b7a6ff;border-bottom:1px solid #7b5cff40;display:flex}.nova-runtime-hint-panel__badge{font-size:1.1rem}.nova-runtime-hint-panel__body{padding:var(--nova-space-4)}.nova-runtime-hint-panel__body .nova-card{box-shadow:none;background:0 0;border:none;padding:0}.nova-runtime-hint-panel__body .nova-card:before{display:none}.nova-runtime-completion{gap:var(--nova-space-5);flex-direction:column;display:flex}.nova-runtime-completion__header{text-align:center;align-items:center;gap:var(--nova-space-2);flex-direction:column;display:flex}.nova-runtime-completion__icon{font-size:2.25rem;line-height:1}.nova-runtime-completion__title{font-size:var(--nova-font-size-xl);font-weight:var(--nova-font-weight-bold);margin:0}.nova-runtime-completion__subtitle{color:var(--nova-text-secondary);max-width:42ch;line-height:var(--nova-line-height-base);margin:0}.nova-runtime-completion__stats{gap:var(--nova-space-3);grid-template-columns:minmax(0,1fr);display:grid}.nova-runtime-completion__stat{gap:var(--nova-space-1);padding:var(--nova-space-3) var(--nova-space-4);border-radius:var(--nova-radius-md);border:1px solid var(--nova-border-subtle);background:#b8c1e00f;flex-direction:column;display:flex}.nova-runtime-completion__stat-label{font-size:var(--nova-font-size-xs);color:var(--nova-text-muted)}.nova-runtime-completion__stat-value{font-size:var(--nova-font-size-md);font-weight:var(--nova-font-weight-semibold);color:var(--nova-text-primary)}.nova-runtime-completion__recommendations{border-top:1px solid var(--nova-border-subtle);padding-top:var(--nova-space-4)}.nova-runtime-completion__recommendations-title{margin:0 0 var(--nova-space-2);font-size:var(--nova-font-size-md);font-weight:var(--nova-font-weight-semibold)}.nova-runtime-completion__recommendations ul{gap:var(--nova-space-2);color:var(--nova-text-secondary);line-height:var(--nova-line-height-base);flex-direction:column;margin:0;padding-inline-start:1.25rem;display:flex}.nova-runtime-completion__actions{gap:var(--nova-space-3);flex-direction:column;display:flex}@media 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