:root{
  --course-accent:#ff7d18;
  --course-accent-2:#ffb067;
  --course-dark:#0d3974;
  --course-tint:#fff3e9;
  --course-ring:4.1667%;
}
body.course-page{background:
  radial-gradient(circle at 12% 2%,rgba(33,134,229,.09),transparent 26%),
  radial-gradient(circle at 91% 9%,color-mix(in srgb,var(--course-accent) 12%,transparent),transparent 24%),
  linear-gradient(180deg,#f8fbff 0,#f4f8fd 55%,#f7fbff 100%);
}
body.course-starter{--course-accent:#ff7d18;--course-accent-2:#ffb067;--course-dark:#0d3974;--course-tint:#fff4ea;--course-ring:4.1667%}
body.course-mover{--course-accent:#0ea5a8;--course-accent-2:#5eead4;--course-dark:#0b4b66;--course-tint:#ecfdf9;--course-ring:0%}
body.course-flyer{--course-accent:#7c5cff;--course-accent-2:#a78bfa;--course-dark:#312e81;--course-tint:#f4f1ff;--course-ring:0%}
.course-shell{max-width:1500px;margin:0 auto;padding:20px 28px 34px}
.course-navbar{min-height:78px;display:flex;align-items:center;gap:22px;padding:8px 0 18px}
.course-brand{display:flex;align-items:center;flex:0 0 auto}.course-brand img{width:148px;height:auto;display:block}
.course-breadcrumb{display:flex;align-items:center;gap:8px;color:#7890ad;font-size:13px;font-weight:800}.course-breadcrumb a:hover{color:var(--course-dark)}.course-breadcrumb b{color:var(--course-dark)}
.course-nav-spacer{flex:1}
.course-switcher{display:flex;align-items:center;gap:6px;padding:5px;border:1px solid #dce8f4;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);border-radius:14px;box-shadow:0 8px 24px rgba(31,74,121,.07)}
.course-switcher a{padding:8px 13px;border-radius:10px;color:#6983a1;font-size:12px;font-weight:900;transition:.15s background,.15s color,.15s transform}.course-switcher a:hover{color:var(--course-dark);background:#f3f8fd}.course-switcher a.active{background:var(--course-dark);color:#fff;box-shadow:0 6px 14px color-mix(in srgb,var(--course-dark) 22%,transparent)}
.course-home{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:13px;background:#fff;border:1px solid #dce8f4;color:var(--course-dark);font-size:12px;font-weight:900;box-shadow:0 8px 20px rgba(31,74,121,.06);transition:.15s transform,.15s box-shadow}.course-home:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(31,74,121,.11)}

.course-hero{position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);gap:34px;align-items:center;min-height:385px;padding:42px 46px;border-radius:32px;background:linear-gradient(135deg,var(--course-dark),color-mix(in srgb,var(--course-dark) 72%,#1d78c8));box-shadow:0 24px 54px color-mix(in srgb,var(--course-dark) 18%,transparent);isolation:isolate}
.course-hero::before{content:"";position:absolute;width:460px;height:460px;border-radius:50%;right:-110px;top:-180px;background:radial-gradient(circle,rgba(255,255,255,.18),rgba(255,255,255,.02) 58%,transparent 59%);z-index:-1}
.course-hero::after{content:"";position:absolute;width:340px;height:340px;border:1px solid rgba(255,255,255,.12);border-radius:50%;right:80px;bottom:-210px;box-shadow:0 0 0 32px rgba(255,255,255,.03),0 0 0 64px rgba(255,255,255,.025);z-index:-1}
.hero-copy{max-width:780px}.hero-kicker{display:inline-flex;align-items:center;gap:8px;padding:7px 11px;border-radius:999px;background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.15);color:#e8f2ff;font-size:11px;font-weight:900;letter-spacing:.1em;text-transform:uppercase}.hero-kicker i{width:7px;height:7px;border-radius:50%;background:var(--course-accent-2);box-shadow:0 0 0 5px color-mix(in srgb,var(--course-accent-2) 18%,transparent)}
.hero-copy h1{max-width:760px;margin:16px 0 14px;color:#fff;font-size:clamp(38px,4.8vw,66px);line-height:.99;letter-spacing:-.035em}.hero-copy h1 span{display:block;color:var(--course-accent-2)}
.hero-copy>p{max-width:690px;margin:0;color:#d9e8f7;font-size:17px;line-height:1.68}
.hero-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:24px}.hero-primary,.hero-secondary{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 17px;border-radius:13px;font-size:13px;font-weight:900;transition:.15s transform,.15s box-shadow}.hero-primary{background:linear-gradient(135deg,var(--course-accent-2),var(--course-accent));color:#fff;box-shadow:0 10px 24px color-mix(in srgb,var(--course-accent) 32%,transparent)}.hero-primary:hover,.hero-secondary:hover{transform:translateY(-2px)}.hero-secondary{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);color:#fff}
.hero-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.hero-meta span{display:flex;align-items:center;gap:7px;color:#dbe9f7;font-size:12px;font-weight:750}.hero-meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--course-accent-2)}

.hero-visual{position:relative;display:grid;place-items:center;min-height:290px}.progress-orbit{position:relative;width:min(280px,82%);aspect-ratio:1;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--course-accent-2) var(--course-ring),rgba(255,255,255,.13) 0);box-shadow:inset 0 0 0 1px rgba(255,255,255,.12),0 22px 50px rgba(3,18,42,.22)}
.progress-orbit::before{content:"";position:absolute;inset:17px;border-radius:50%;background:linear-gradient(145deg,rgba(255,255,255,.15),rgba(255,255,255,.06));border:1px solid rgba(255,255,255,.13);backdrop-filter:blur(8px)}
.progress-content{position:relative;text-align:center;color:#fff}.progress-content strong{display:block;font-size:52px;line-height:.95;letter-spacing:-.05em}.progress-content strong small{font-size:20px;color:#bcd3e9}.progress-content span{display:block;margin-top:8px;color:#d9e8f7;font-size:12px;font-weight:800}.progress-content b{display:inline-flex;margin-top:15px;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.11);font-size:10px;letter-spacing:.08em;color:var(--course-accent-2)}
.orbit-chip{position:absolute;display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:13px;background:rgba(255,255,255,.94);box-shadow:0 12px 26px rgba(3,18,42,.18);color:var(--course-dark);font-size:11px;font-weight:900}.orbit-chip i{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--course-tint);color:var(--course-accent);font-style:normal}.orbit-chip.one{left:0;top:42px}.orbit-chip.two{right:0;bottom:46px}

.course-overview{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:20px 0 28px}.overview-card{position:relative;overflow:hidden;min-height:150px;padding:20px 20px 18px;border:1px solid #dfebf6;background:rgba(255,255,255,.92);border-radius:22px;box-shadow:0 10px 28px rgba(31,74,121,.07);transition:.15s transform,.15s box-shadow}.overview-card:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(31,74,121,.11)}.overview-card::after{content:"";position:absolute;width:86px;height:86px;border-radius:50%;right:-35px;top:-35px;background:var(--course-tint)}.overview-icon{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:var(--course-tint);color:var(--course-accent);font-size:13px;font-weight:1000;letter-spacing:.04em}.overview-card h2{font-size:18px;margin:14px 0 6px;color:var(--course-dark)}.overview-card p{margin:0;color:#6b84a2;font-size:13px;line-height:1.55}

.lesson-section{padding:26px 0 0}.lesson-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:22px;margin-bottom:16px}.section-label{display:block;color:var(--course-accent);font-size:10px;letter-spacing:.14em;font-weight:1000;text-transform:uppercase;margin-bottom:6px}.lesson-section-head h2{margin:0;color:var(--course-dark);font-size:29px;letter-spacing:-.02em}.lesson-section-head p{margin:6px 0 0;color:#7088a6;font-size:13px}.lesson-tools{display:flex;align-items:center;gap:8px}.lesson-search{display:flex;align-items:center;gap:8px;min-width:240px;height:42px;padding:0 12px;border-radius:13px;background:#fff;border:1px solid #dfeaf4;box-shadow:0 7px 18px rgba(31,74,121,.05)}.lesson-search span{color:#8da0b6}.lesson-search input{width:100%;border:0;outline:0;background:transparent;color:var(--course-dark);font:inherit;font-size:12px;font-weight:700}.lesson-search input::placeholder{color:#9aacbf}.lesson-count{display:inline-flex;align-items:center;height:42px;padding:0 12px;border-radius:13px;background:var(--course-tint);color:var(--course-dark);font-size:11px;font-weight:900;border:1px solid color-mix(in srgb,var(--course-accent) 15%,#dfeaf4)}

.lesson-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.placeholder-lessons{display:contents}.lesson-card{overflow:hidden;border-radius:20px;background:#fff;border:1px solid #dfe9f4;box-shadow:0 10px 28px rgba(31,74,121,.08);transition:.16s transform,.16s box-shadow,.16s border-color}.lesson-card:hover{transform:translateY(-2px);box-shadow:0 15px 34px rgba(31,74,121,.12);border-color:color-mix(in srgb,var(--course-accent) 26%,#dfe9f4)}.lesson-card.ready{grid-column:span 2;display:grid;grid-template-columns:44% 56%;min-height:300px;align-items:stretch}.lesson-cover{background:#dce8f4;min-height:100%;overflow:hidden}.lesson-cover img{width:100%;height:100%;object-fit:cover;display:block}.lesson-card-body{padding:18px;display:flex;flex-direction:column}.lesson-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.lesson-number{font-size:28px;font-weight:950;color:var(--course-accent)}.ready-badge,.pending-badge{padding:5px 8px;border-radius:999px;font-size:9px;font-weight:900}.ready-badge{background:#e7f8ef;color:#13804d}.pending-badge{background:#f0f4f9;color:#8094ac}.lesson-card h2{font-size:22px;margin:9px 0 7px}.lesson-card p{color:#7088a6;line-height:1.5;font-size:13px;margin:0}.lesson-info{display:flex;gap:6px;flex-wrap:wrap;margin:14px 0}.lesson-info span{padding:5px 8px;border-radius:999px;background:var(--course-tint);color:var(--course-dark);font-size:10px;font-weight:800}.open-lesson{margin-top:auto;color:var(--course-accent);font-size:13px;font-weight:900}.open-lesson.muted{color:#98a8bb}.pending{min-height:225px;display:flex;flex-direction:column}.pending-cover{height:82px;display:grid;place-items:center;background:linear-gradient(135deg,#edf4fb,#f8fbfe);border-bottom:1px solid #e4edf6}.pending-cover span{font-size:34px;font-weight:950;color:#bfd0e2}.pending .lesson-card-body{flex:1}.pending h2{font-size:18px}.pending p{font-size:12px}.pending .lesson-number{font-size:20px;color:#a4b5c8}.lesson-card[hidden]{display:none!important}
.course-footer{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-top:30px;padding:18px 2px 0;border-top:1px solid #e2ebf4;color:#8298b1;font-size:11px}.course-footer strong{color:var(--course-dark)}

@media(max-width:1180px){.course-hero{grid-template-columns:1fr .7fr;padding:36px}.course-overview{grid-template-columns:repeat(3,1fr)}.lesson-grid{grid-template-columns:repeat(3,1fr)}.lesson-card.ready{grid-column:span 2}.course-switcher{display:none}}
@media(max-width:880px){.course-shell{padding:16px}.course-navbar{flex-wrap:wrap}.course-breadcrumb{order:3;width:100%}.course-hero{grid-template-columns:1fr;padding:30px;min-height:0}.hero-visual{min-height:245px}.progress-orbit{width:235px}.course-overview{grid-template-columns:1fr}.lesson-section-head{align-items:flex-start;flex-direction:column}.lesson-tools{width:100%}.lesson-search{flex:1}.lesson-grid{grid-template-columns:1fr 1fr}.lesson-card.ready{grid-column:1/-1}}
@media(max-width:560px){.course-shell{padding:12px}.course-brand img{width:122px}.course-home{padding:9px 11px}.course-home span{display:none}.course-hero{padding:24px 20px;border-radius:24px}.hero-copy h1{font-size:39px}.hero-copy>p{font-size:15px}.hero-visual{min-height:220px}.progress-orbit{width:205px}.orbit-chip{display:none}.lesson-tools{flex-direction:column;align-items:stretch}.lesson-search{min-width:0}.lesson-count{justify-content:center}.lesson-grid{grid-template-columns:1fr}.lesson-card.ready{display:block}.lesson-cover{height:210px}.course-footer{flex-direction:column;align-items:flex-start}}

.case-cover{position:relative;align-self:stretch;min-height:100%;height:100%;background:radial-gradient(circle at 75% 15%,rgba(255,255,255,.9),transparent 28%),linear-gradient(145deg,#e8f4ff,#fff7ed)!important;overflow:hidden;padding:0}.case-cover img{position:absolute;inset:0;display:block!important;width:100%!important;height:100%!important;max-width:none!important;max-height:none!important;object-fit:cover!important;object-position:center!important;filter:drop-shadow(0 10px 16px rgba(8,38,76,.12))}.case-cover-badge{position:absolute;left:14px;top:14px;z-index:2;padding:7px 10px;border-radius:999px;background:#0b2447;color:#fff;font-size:10px;font-weight:900;letter-spacing:.08em}.lesson-card.ready .lesson-card-body p{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.lesson-info{flex-wrap:wrap}

/* Keep every class reachable on tablet and phone. */
body.course-starter{--course-ring:100%}
@media(max-width:1180px){
 .course-navbar{flex-wrap:wrap;gap:14px}
 .course-switcher{display:flex;flex-wrap:wrap;max-width:100%}
}
@media(max-width:880px){
 .course-switcher{order:4;width:100%;display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
 .course-switcher a{text-align:center;padding:9px 5px;white-space:nowrap}
}
@media(max-width:380px){
 .course-switcher{grid-template-columns:repeat(2,minmax(0,1fr))}
}
body.course-starter .progress-orbit::before{background:var(--course-dark)}