:root{color-scheme:dark;--bg:#05070a;--panel:#0c141f;--text:#edf5fb;--muted:#aab9c9;--line:#263c50;--cyan:#60d8ff;--header-offset:110px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:var(--header-offset)}body{margin:0;background:radial-gradient(ellipse at 90% 0,#123348 0,transparent 45%),var(--bg);color:var(--text);font:17px/1.7 system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}a{color:var(--cyan);text-underline-offset:4px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:5px}h1,h2,h3{line-height:1.15}h1{font-size:clamp(2.6rem,6vw,5rem);letter-spacing:-.06em;max-width:1000px}h2{font-size:1.6rem;letter-spacing:-.035em}p,li{overflow-wrap:anywhere}section[id],h2[id]{scroll-margin-top:var(--header-offset)}.public-header{position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;gap:24px;align-items:center;padding:20px max(5vw,20px);background:#05070aed;border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}.public-brand{font-size:1.25rem;font-weight:850;color:var(--text);text-decoration:none;letter-spacing:.12em}.public-brand small{display:block;font-size:.65rem;font-weight:500;color:var(--muted);letter-spacing:.05em}.public-header nav{display:flex;gap:25px;font-size:.9rem}.public-header nav a{text-decoration:none}.public-main{max-width:1160px;margin:auto;padding:70px 24px 100px}.eyebrow{color:var(--cyan);font-size:.75rem;font-weight:750;letter-spacing:.17em;text-transform:uppercase}.intro{max-width:850px;color:var(--muted);font-size:1.2rem;line-height:1.7;margin-bottom:38px}.public-panel{background:linear-gradient(140deg,#122435bb,#0c141fe8);border:1px solid var(--line);border-radius:22px;padding:32px;margin:22px 0;box-shadow:0 20px 60px #0002}.public-panel p{max-width:950px}.public-panel h2:first-child{margin-top:0}.public-course-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.public-course-grid .public-panel{margin:0}.public-button{display:inline-flex;border:1px solid var(--cyan);border-radius:40px;padding:12px 22px;background:var(--cyan);color:#041019;font-size:.95rem;font-weight:750;text-decoration:none;margin:6px 8px 6px 0;transition:transform .2s}.public-button:hover{transform:translateY(-3px)}.public-button.secondary{background:transparent;color:var(--cyan)}.public-actions{margin-top:30px}pre{overflow:auto;border:1px solid var(--line);padding:22px;border-radius:12px;background:#03070c;font-size:.9rem;line-height:1.6;tab-size:4}details{border-top:1px solid var(--line);padding:16px 0}summary{cursor:pointer;font-weight:650}.preserve-lines{white-space:pre-line}.trust-footer{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;padding:30px 24px;border-top:1px solid var(--line);font-size:.9rem}.trust-footer span{color:var(--muted)}.skip-link{position:fixed;left:12px;top:-100px;padding:10px;background:var(--cyan);color:#001522;z-index:100}.skip-link:focus{top:10px}@media(max-width:640px){.public-header{padding:15px 18px;gap:14px;align-items:flex-start}.public-header nav{gap:10px;flex-wrap:wrap;justify-content:flex-end;max-width:180px;font-size:.8rem}.public-main{padding-top:40px}.public-panel{padding:23px}.public-course-grid{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.public-button{transition:none}}