.course-page .nav{position:sticky}
.course-hero{background:linear-gradient(125deg,#071f36 0%,#0b3557 58%,#124f79 100%);color:#fff;padding:70px 0 58px}
.course-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}
.course-hero h1{font-size:clamp(2.7rem,5vw,5.4rem);line-height:.94;letter-spacing:-.055em;margin:12px 0 18px}
.course-hero .lead{color:#d5e5ee;max-width:720px}
.course-hero .eyebrow{color:#9bd0eb}
.course-shot{border-radius:28px;overflow:hidden;box-shadow:0 22px 60px rgba(0,0,0,.28);min-height:470px}
.course-shot img{width:100%;height:100%;object-fit:cover}
.quickbar{background:#fff;border-bottom:1px solid var(--line)}
.quickgrid{display:grid;grid-template-columns:repeat(4,1fr)}
.quick{padding:18px 20px;border-right:1px solid var(--line)}
.quick:last-child{border-right:0}.quick b{display:block;color:var(--navy);font-size:.88rem}.quick span{display:block;color:#6c7d89;font-size:.76rem}
.course-content{padding:84px 0}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.panel{padding:30px;border:1px solid var(--line);border-radius:24px;background:#fff}
.panel h3{color:var(--navy);font-size:1.45rem;margin:0 0 10px}
.panel p{color:#687985;margin:0}
.module-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:24px}
.module{padding:22px;border-radius:18px;background:#f4f8fa;border:1px solid #e0e9ee}
.module small{display:block;color:var(--accent);font-weight:900;letter-spacing:.1em;text-transform:uppercase}
.module h4{margin:7px 0 6px;color:var(--navy)}
.module p{font-size:.84rem}
.master{background:#082a48;color:#fff}
.master .section-head h2{color:#fff}.master .section-head p{color:#bfd0dc}.master .eyebrow{color:#93cae8}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.step{padding:22px;border-radius:18px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.13)}
.step strong{display:block;color:#fff}.step span{display:block;color:#bfd0dc;font-size:.8rem;margin-top:5px}
.cert-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
.cert-card{padding:30px;border-radius:24px;border:1px solid var(--line);background:#fff}
.cert-card h3{color:var(--navy);margin-top:0}
.cert-card ul{padding-left:20px;color:#627583}
.commercial{background:#f3f7f9}
.offer-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.offer{padding:30px;border-radius:24px;border:1px solid var(--line);background:#fff}
.offer.featured{border-color:#9dc6dc;box-shadow:0 18px 45px rgba(8,38,64,.08)}
.offer h3{color:var(--navy);margin:0 0 8px}.offer p{color:#667986}
.offer .price{font-size:2.25rem;color:var(--navy);font-weight:950;margin:18px 0}
.offer .price small{font-size:.78rem;color:#70818d;font-weight:700}
.payments{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}
.payments span{padding:8px 10px;border-radius:999px;background:#eef4f7;border:1px solid #dce7ed;color:#3e5869;font-size:.76rem;font-weight:700}
.upsell-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.upsell{padding:28px;border-radius:22px;background:#fff;border:1px solid var(--line)}
.upsell h3{color:var(--navy);margin:0 0 8px}.upsell p{color:#667986}
.caveat{font-size:.76rem;color:#768793;margin-top:12px}
@media(max-width:980px){.course-hero-grid,.two-col,.cert-grid,.offer-grid,.upsell-grid{grid-template-columns:1fr}.timeline{grid-template-columns:1fr 1fr}.quickgrid{grid-template-columns:1fr 1fr}.quick:nth-child(2){border-right:0}}
@media(max-width:640px){.course-hero{padding:48px 0 34px}.course-shot{min-height:320px}.quickgrid,.timeline,.module-grid{grid-template-columns:1fr}.quick{border-right:0;border-bottom:1px solid var(--line)}.quick:last-child{border-bottom:0}.course-content{padding:66px 0}}