.vp-page{max-width:1280px;margin:auto;padding:clamp(18px,4vw,48px)}.vp-header{max-width:760px;margin-bottom:36px}.vp-header h1{font-size:clamp(36px,5vw,64px);margin:8px 0 20px}.vp-header p{line-height:1.6}.vp-eyebrow{font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#53688c}.vp-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,1fr);gap:28px;align-items:start}.vp-player{position:sticky;top:20px;background:#fff;border:1px solid #dce4f0;border-radius:26px;padding:clamp(16px,2vw,28px);min-width:0;scroll-margin-top:20px}.vp-player h2{font-size:clamp(22px,2vw,30px);line-height:1.3}.vp-scene{background:#f5f4fc;border-radius:18px;padding:18px;min-height:250px;display:grid;align-items:center}.vp-scene svg{display:block;max-width:100%;height:auto;margin:auto}.vp-scene>svg{width:100%}.vp-scene .fq-story-step{position:static;width:100%;min-width:0}.vp-scene .fq-model-row,.vp-scene .fq-four-halves{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}.vp-scene .fq-model-row>*,.vp-scene .fq-four-halves>*{flex:1 1 100px;min-width:0}.vp-scene .fq-circle{width:min(100%,220px)}.vp-scene .fq-scene-note{font-size:16px;line-height:1.4}.vp-scene .fq-equation{font-size:24px}.vp-controls{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.vp-controls button{font-size:14px;padding:10px 14px;min-height:44px}.vp-catalog h2{font-size:25px;margin-top:0}.vp-group{margin-bottom:24px}.vp-group h3{font-size:18px}.vp-group button{display:flex;width:100%;align-items:center;justify-content:space-between;text-align:left;gap:12px;padding:16px;margin:8px 0;font:inherit;font-size:15px;border:1px solid #d9e2f2;background:#fff;border-radius:14px;color:#263963}.vp-group button[aria-pressed=true]{border:2px solid #2755c7;background:#eaf0ff}.vp-check{font-size:12px;white-space:nowrap;color:#2755c7}.vp-player>p{line-height:1.6}@media(max-width:760px){.vp-layout{grid-template-columns:minmax(0,1fr)}.vp-player{position:static}.vp-page{padding:18px 10px}.vp-scene{padding:10px;min-height:200px}.vp-header{margin-bottom:24px}}
.vp-page>.vp-header{display:block;position:static;background:transparent;border:0;box-shadow:none;padding:0;margin:0 0 32px;width:auto;min-height:0}.vp-header .vp-eyebrow{margin:0}.vp-header>a{display:inline-block;font-weight:700;color:#2755c7}.vp-scene .fq-story-step{animation:none;opacity:1;transform:none}
/* Course introduction stays independent of the site's navigation header. */
.vp-hero{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(220px,.85fr);align-items:center;gap:20px;padding:clamp(24px,4vw,48px);margin:0 0 32px;border:1px solid #dce2ef;border-radius:30px;background:linear-gradient(115deg,#f5f1fb,#edf3fc);overflow:hidden}
.vp-hero[data-course=geometry]{background:linear-gradient(115deg,#f7f3e9,#edf3fc)}
.vp-hero[data-course=learn],.vp-hero[data-course=division]{background:linear-gradient(115deg,#eaf5ef,#edf2fb)}
.vp-hero-copy{min-width:0}.vp-hero .vp-eyebrow{margin:0 0 14px;font-size:11px;letter-spacing:.12em}.vp-hero h1{font-size:clamp(34px,4.4vw,58px);line-height:1.08;margin:0 0 18px;letter-spacing:-.035em}.vp-hero-intro{font-size:clamp(18px,1.8vw,23px);line-height:1.4;color:#3e5277;margin:0 0 8px;max-width:28em}.vp-hero-note{font-size:14px;line-height:1.5;color:#64738b;margin:0 0 23px}.vp-hero-link{display:inline-flex;align-items:center;gap:16px;color:#2452c8;font-weight:700;font-size:15px;text-decoration:none;padding:9px 0}.vp-hero-link:hover{text-decoration:underline}.vp-hero-art svg{display:block;width:100%;height:auto;max-height:270px}.vp-hero-art{min-width:0}
@media(max-width:600px){.vp-hero{grid-template-columns:minmax(0,1fr);gap:0;padding:25px 23px 12px;border-radius:23px}.vp-hero-art{width:min(100%,300px);margin:0 auto}.vp-hero h1{font-size:38px}.vp-hero .vp-eyebrow{font-size:10px}.vp-hero-note{margin-bottom:12px}.vp-hero-intro{font-size:19px}.vp-hero-art svg{max-height:180px}}