:root{
  --orion-bg:#0f172a;
  --orion-surface:#111827;
  --orion-card:#0b1220;
  --orion-border:rgba(255,255,255,.08);
  --orion-text:#e5e7eb;
  --orion-muted:rgba(229,231,235,.75);
  --orion-accent:#a78bfa;
  --orion-accent2:#22c55e;
  --orion-shadow: 0 18px 50px rgba(0,0,0,.25);
  --orion-radius: 16px;
  --orion-radius2: 12px;
  --orion-max: 1100px;
  --orion-font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, 'Apple Color Emoji','Segoe UI Emoji';
}

.orion-udemy{
  font-family: var(--orion-font);
  color: var(--orion-text);
  box-sizing:border-box;
}
.orion-udemy *{ box-sizing: inherit; }

.orion-hero{
  background: radial-gradient(1200px 600px at 18% 20%, rgba(167,139,250,.35), transparent 55%),
              radial-gradient(900px 520px at 80% 15%, rgba(34,197,94,.18), transparent 45%),
              linear-gradient(180deg, #0b1020, #070a12);
  border:1px solid var(--orion-border);
  border-radius: var(--orion-radius);
  box-shadow: var(--orion-shadow);
  padding: 28px;
  margin: 18px auto 22px;
  max-width: var(--orion-max);
}
.orion-hero h2{
  font-size: 28px;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.orion-lead{
  margin: 0;
  color: var(--orion-muted);
  max-width: 60ch;
  line-height: 1.5;
}
.orion-hero-actions{ margin-top: 14px; display:flex; gap:10px; flex-wrap:wrap; }

.orion-btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:8px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--orion-border);
  background: rgba(255,255,255,.04);
  color: var(--orion-text);
  text-decoration:none !important;
  font-weight: 600;
  cursor:pointer;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.orion-btn:hover{ transform: translateY(-1px); background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.14); }
.orion-btn.primary{
  background: linear-gradient(90deg, rgba(167,139,250,.95), rgba(56,189,248,.75));
  border-color: rgba(255,255,255,.12);
  color: #0b1020;
}
.orion-btn.primary:hover{ filter: brightness(1.03); }

.orion-grid{
  max-width: var(--orion-max);
  margin: 0 auto 28px;
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 16px;
}
@media (max-width: 980px){ .orion-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 640px){ .orion-grid{ grid-template-columns: 1fr; } }

.orion-card{
  display:block;
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border: 1px solid var(--orion-border);
  border-radius: var(--orion-radius);
  overflow:hidden;
  text-decoration:none !important;
  color: var(--orion-text);
  box-shadow: 0 10px 28px rgba(0,0,0,.18);
  transition: transform .12s ease, border-color .12s ease, box-shadow .12s ease;
}
.orion-card:hover{
  transform: translateY(-2px);
  border-color: rgba(255,255,255,.14);
  box-shadow: 0 16px 40px rgba(0,0,0,.26);
}
.orion-card-media{ aspect-ratio: 16 / 9; background: #0b1020; }
.orion-cover{ width:100%; height:100%; object-fit:cover; display:block; }
.orion-card-body{ padding: 14px 14px 16px; }
.orion-card-title{ font-weight: 800; letter-spacing: -0.01em; line-height: 1.2; margin-bottom: 6px; font-size: 16px; }
.orion-card-subtitle{ color: var(--orion-muted); font-size: 13px; line-height: 1.35; margin-bottom: 10px; }
.orion-card-meta{ display:flex; align-items:center; gap:8px; font-size: 12px; color: var(--orion-muted); margin-bottom: 8px; flex-wrap:wrap; }
.orion-rating-num{ color: #fde68a; font-weight: 800; }
.orion-dot{ opacity:.6; }
.orion-card-mini{ font-size: 12px; color: rgba(229,231,235,.70); margin-bottom: 10px; }
.orion-card-price{ font-size: 14px; font-weight: 900; letter-spacing: -0.01em; }

.orion-stars{ display:inline-flex; gap:2px; line-height: 1; }
.orion-star{ font-size: 12px; }
.orion-star.full, .orion-star.half{ color:#fbbf24; }
.orion-star.empty{ color: rgba(255,255,255,.18); }
.orion-star.half{ position:relative; }
.orion-star.half:after{
  content:'★';
  position:absolute; left:0; top:0;
  width:50%;
  overflow:hidden;
  color:#fbbf24;
}

/* Course page */
.orion-course-hero{
  max-width: var(--orion-max);
  margin: 18px auto 20px;
  display:grid;
  grid-template-columns: 1.4fr .9fr;
  gap: 18px;
  align-items:start;
}
@media (max-width: 920px){
  .orion-course-hero{ grid-template-columns: 1fr; }
  .orion-course-aside{ position: static !important; }
}
.orion-course-main{
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border:1px solid var(--orion-border);
  border-radius: var(--orion-radius);
  padding: 18px 18px 16px;
  box-shadow: 0 14px 44px rgba(0,0,0,.20);
}
.orion-breadcrumbs{ font-size: 12px; color: var(--orion-muted); margin-bottom: 10px; }
.orion-breadcrumbs a{ color: var(--orion-muted); text-decoration:none; }
.orion-course-title{ margin: 0 0 10px; font-size: 28px; line-height: 1.08; letter-spacing: -0.03em; }
.orion-course-subtitle{ color: rgba(229,231,235,.8); font-size: 15px; line-height: 1.45; margin-bottom: 12px; }
.orion-course-meta{ display:flex; gap:10px; align-items:center; flex-wrap:wrap; color: var(--orion-muted); font-size: 13px; margin-bottom: 10px; }
.orion-course-instructor{ font-size: 13px; color: var(--orion-muted); }

.orion-course-aside{ position: sticky; top: 18px; }
.orion-purchase{
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border:1px solid var(--orion-border);
  border-radius: var(--orion-radius);
  overflow:hidden;
  box-shadow: 0 14px 48px rgba(0,0,0,.24);
}
.orion-purchase-media{ aspect-ratio: 16 / 9; }
.orion-purchase-price{ padding: 14px 14px 10px; font-size: 22px; font-weight: 900; letter-spacing:-0.02em; }
.orion-purchase .orion-btn{ margin: 0 14px 12px; width: calc(100% - 28px); }
.orion-pill{
  margin: 0 14px 12px;
  padding: 8px 12px;
  border-radius: 999px;
  border:1px solid rgba(34,197,94,.3);
  background: rgba(34,197,94,.12);
  color: #bbf7d0;
  font-weight: 700;
  text-align:center;
}
.orion-note{ margin: 0 14px 12px; color: var(--orion-muted); font-size: 12px; line-height: 1.4; }
.orion-perks{ margin: 0 14px 14px; padding-left: 16px; color: rgba(229,231,235,.82); font-size: 12px; }
.orion-perks li{ margin: 6px 0; }

.orion-course-body{
  max-width: var(--orion-max);
  margin: 0 auto 34px;
  display:grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.orion-section{
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border:1px solid var(--orion-border);
  border-radius: var(--orion-radius);
  padding: 16px 18px;
}
.orion-section h3{ margin: 0 0 12px; font-size: 18px; letter-spacing:-0.02em; }
.orion-muted{ color: var(--orion-muted); font-size: 13px; }
.orion-checklist{ margin: 0; padding-left: 18px; display:grid; grid-template-columns: 1fr 1fr; gap: 6px 22px; }
@media (max-width: 720px){ .orion-checklist{ grid-template-columns: 1fr; } }
.orion-checklist li{ margin: 0; }
.orion-curriculum{ margin: 0; padding-left: 18px; }
.orion-curriculum li{ margin: 8px 0; }
.orion-curriculum a{ color: #c7d2fe; text-decoration:none; }
.orion-curriculum a:hover{ text-decoration: underline; }

.orion-rich{ color: rgba(229,231,235,.88); line-height: 1.75; }
.orion-rich a{ color: #93c5fd; }
.orion-empty{
  max-width: var(--orion-max);
  margin: 14px auto;
  padding: 18px;
  border:1px dashed rgba(255,255,255,.18);
  border-radius: var(--orion-radius);
  color: var(--orion-muted);
}

/* Lesson page */
.orion-lesson{ max-width: var(--orion-max); margin: 18px auto 34px; }
.orion-lesson-head{
  border:1px solid var(--orion-border);
  border-radius: var(--orion-radius);
  padding: 16px 18px;
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  box-shadow: 0 12px 40px rgba(0,0,0,.18);
}
.orion-back{ color: var(--orion-muted); text-decoration:none; font-size: 13px; }
.orion-lesson-title{ margin: 10px 0 0; font-size: 24px; letter-spacing:-0.02em; }
.orion-video{
  margin-top: 14px;
  border:1px solid var(--orion-border);
  border-radius: var(--orion-radius);
  overflow:hidden;
  background: #0b1020;
}
.orion-video-placeholder{
  aspect-ratio: 16 / 9;
  display:flex; align-items:center; justify-content:center;
  background: radial-gradient(900px 500px at 30% 20%, rgba(167,139,250,.30), transparent 60%),
              radial-gradient(700px 450px at 75% 15%, rgba(56,189,248,.20), transparent 55%),
              linear-gradient(180deg, #0b1020, #070a12);
}
.orion-video-badge{
  border:1px solid rgba(255,255,255,.16);
  background: rgba(0,0,0,.25);
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 800;
}
.orion-actions{
  margin-top: 16px;
  display:flex;
  gap: 12px;
  align-items:center;
  flex-wrap:wrap;
}
.orion-lock{
  margin-top: 14px;
  border:1px solid rgba(244,63,94,.25);
  background: rgba(244,63,94,.08);
  border-radius: var(--orion-radius);
  padding: 16px 18px;
}
.orion-lock h3{ margin: 0 0 6px; }


/* ORION v1.0.3 rich LMS demo hardening */
.orion-rich-lms{ max-width:1180px; margin:24px auto 48px; padding:0 16px; color:#e5e7eb !important; direction:ltr; text-align:left; }
.orion-rich-lms h1,.orion-rich-lms h2,.orion-rich-lms h3,.orion-rich-lms p,.orion-rich-lms li,.orion-rich-lms span,.orion-rich-lms strong,.orion-rich-lms em{ color:inherit; }
.orion-rich-lms a{ color:#bfdbfe; }
.orion-lms-hero{ display:grid; grid-template-columns:minmax(0,1fr) 360px; gap:22px; align-items:start; padding:28px; border-radius:24px; border:1px solid rgba(255,255,255,.12); background:radial-gradient(900px 420px at 15% 0%, rgba(139,92,246,.34), transparent 60%),linear-gradient(135deg,#101827,#05070d); box-shadow:0 24px 70px rgba(15,23,42,.28); }
.orion-lms-hero.lesson{ display:block; }
.orion-lms-hero h1{ margin:8px 0 10px; font-size:clamp(30px,5vw,54px); line-height:1.02; letter-spacing:-.045em; }
.orion-kicker{ color:#93c5fd !important; font-size:12px; text-transform:uppercase; letter-spacing:.18em; font-weight:900; }
.orion-lms-subtitle{ color:rgba(226,232,240,.84) !important; font-size:17px; line-height:1.6; max-width:68ch; }
.orion-lms-meta{ display:flex; gap:10px; flex-wrap:wrap; align-items:center; color:rgba(226,232,240,.82); margin:16px 0; }
.orion-instructor{ color:rgba(226,232,240,.75) !important; }
.orion-checkout-panel{ border-radius:22px; overflow:hidden; background:#0f172a; border:1px solid rgba(255,255,255,.14); box-shadow:0 18px 50px rgba(0,0,0,.34); }
.orion-checkout-panel .orion-cover{ height:210px; object-fit:cover; }
.orion-checkout-body{ padding:16px; }
.orion-price-large{ color:#fff; font-size:28px; font-weight:950; margin-bottom:12px; }
.orion-checkout-body ul{ margin:16px 0 0; padding-left:20px; color:rgba(226,232,240,.82); }
.orion-lms-panel{ margin:22px 0; padding:22px; border-radius:22px; background:linear-gradient(180deg,#111827,#0b1220); border:1px solid rgba(255,255,255,.10); box-shadow:0 16px 45px rgba(15,23,42,.20); color:#e5e7eb !important; }
.orion-panel-head{ display:flex; justify-content:space-between; gap:14px; align-items:flex-start; margin-bottom:14px; }
.orion-panel-head h2{ margin:0; }
.orion-panel-head p{ margin:5px 0 0; color:rgba(226,232,240,.72) !important; }
.orion-feature-grid{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; }
.orion-feature{ padding:16px; border-radius:18px; background:rgba(255,255,255,.045); border:1px solid rgba(255,255,255,.10); color:#e5e7eb !important; text-decoration:none !important; }
.orion-feature span{ display:inline-grid; place-items:center; width:30px; height:30px; border-radius:999px; margin-bottom:8px; background:rgba(34,197,94,.15); color:#86efac !important; font-weight:900; }
.orion-feature small{ display:block; margin-top:4px; color:rgba(226,232,240,.68) !important; }
.orion-feature-link:hover{ transform:translateY(-1px); border-color:rgba(147,197,253,.32); }
.orion-syllabus{ display:grid; gap:10px; }
.orion-lesson-row{ display:grid; grid-template-columns:42px minmax(0,1fr) 72px; gap:12px; align-items:center; padding:14px; border-radius:16px; text-decoration:none !important; background:rgba(255,255,255,.045); border:1px solid rgba(255,255,255,.08); }
.orion-lesson-row strong{ display:block; color:#fff !important; }
.orion-lesson-row em{ display:block; color:rgba(226,232,240,.68) !important; font-size:13px; font-style:normal; margin-top:3px; }
.orion-lesson-row small{ color:#93c5fd !important; text-align:right; }
.orion-lesson-num{ width:34px; height:34px; display:grid; place-items:center; border-radius:999px; background:rgba(147,197,253,.14); color:#bfdbfe !important; font-weight:900; }
.orion-two-col{ display:grid; grid-template-columns:minmax(0,1fr) 310px; gap:22px; align-items:start; }
.orion-video-pro{ min-height:330px; margin:20px 0; border-radius:24px; background:radial-gradient(780px 420px at 30% 20%, rgba(124,58,237,.38), transparent 60%),linear-gradient(135deg,#020617,#111827); display:flex; align-items:center; justify-content:center; gap:18px; border:1px solid rgba(255,255,255,.12); color:#fff; }
.orion-play-circle{ width:82px; height:82px; display:grid; place-items:center; border-radius:999px; background:#fff; color:#111827 !important; font-size:30px; box-shadow:0 16px 45px rgba(0,0,0,.28); }
.orion-video-pro span{ display:block; color:rgba(226,232,240,.74) !important; margin-top:5px; }
.orion-side-nav{ position:sticky; top:32px; }
.orion-side-link{ display:flex; gap:10px; padding:10px 0; color:rgba(226,232,240,.78) !important; text-decoration:none !important; border-bottom:1px solid rgba(255,255,255,.08); }
.orion-side-link.active{ color:#fff !important; font-weight:900; }
.orion-side-link span{ color:#93c5fd !important; }
.orion-task-list{ list-style:none; padding:0; margin:0 0 14px; display:grid; gap:10px; }
.orion-task-list li{ padding:12px; border-radius:14px; background:rgba(255,255,255,.045); }
.orion-question-card{ margin-bottom:16px; }
.orion-question-prompt{ font-size:18px; color:#fff !important; }
.orion-answer{ display:block; padding:12px 14px; margin:8px 0; border-radius:14px; background:rgba(255,255,255,.045); border:1px solid rgba(255,255,255,.08); cursor:pointer; }
.orion-answer.correct{ border-color:rgba(34,197,94,.55); background:rgba(34,197,94,.12); }
.orion-answer.wrong{ border-color:rgba(244,63,94,.55); background:rgba(244,63,94,.12); }
.orion-input{ width:100%; padding:12px 14px; border-radius:14px; border:1px solid rgba(255,255,255,.16); background:#020617; color:#fff; }
.orion-quiz-actions{ display:flex; gap:14px; align-items:center; margin:18px 0 28px; flex-wrap:wrap; }
.orion-quiz-result{ padding:12px 16px; border-radius:999px; background:rgba(34,197,94,.14); border:1px solid rgba(34,197,94,.35); color:#bbf7d0 !important; font-weight:900; }
.orion-stat-grid{ display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:14px; }
.orion-stat-grid div{ padding:18px; border-radius:18px; background:rgba(255,255,255,.045); border:1px solid rgba(255,255,255,.08); }
.orion-stat-grid strong{ display:block; font-size:28px; color:#fff !important; }
.orion-stat-grid span{ color:rgba(226,232,240,.7) !important; }
.orion-table{ width:100%; border-collapse:collapse; overflow:hidden; border-radius:14px; }
.orion-table th,.orion-table td{ padding:12px; border-bottom:1px solid rgba(255,255,255,.08); text-align:left; }
.orion-table th{ color:#93c5fd !important; }
.orion-certificate-pro{ min-height:560px; display:grid; place-items:center; padding:30px; border-radius:28px; background:radial-gradient(650px 420px at 50% 20%, rgba(250,204,21,.24), transparent 55%),linear-gradient(135deg,#111827,#020617); }
.orion-cert-border{ width:min(780px,100%); padding:58px 46px; text-align:center; border:3px double rgba(250,204,21,.65); border-radius:26px; background:rgba(255,255,255,.035); }
.orion-cert-border h1{ font-size:48px; color:#fef3c7 !important; }
.orion-cert-footer{ display:flex; justify-content:space-between; gap:20px; margin-top:42px; color:rgba(226,232,240,.72); }
.orion-pricing-grid{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; }
.orion-pricing-grid>div{ padding:24px; border-radius:22px; background:#111827; border:1px solid rgba(255,255,255,.10); color:#e5e7eb; }
.orion-pricing-grid .featured{ border-color:rgba(147,197,253,.45); box-shadow:0 20px 60px rgba(59,130,246,.20); }
.orion-register-pro{ display:grid; gap:14px; }
.orion-register-pro label{ display:block; color:#e5e7eb; font-weight:800; }
.orion-register-pro input,.orion-register-pro textarea,.orion-register-pro select{ width:100%; margin-top:6px; padding:12px 14px; border-radius:14px; border:1px solid rgba(255,255,255,.15); background:#020617; color:#fff; }
.orion-card .orion-card-body{ background:#111827 !important; color:#e5e7eb !important; }
.orion-card .orion-card-title{ color:#fff !important; }
.orion-card .orion-card-subtitle,.orion-card .orion-card-mini,.orion-card .orion-card-meta{ color:rgba(226,232,240,.72) !important; }
@media (max-width:900px){ .orion-lms-hero,.orion-two-col{ grid-template-columns:1fr; } .orion-feature-grid,.orion-stat-grid,.orion-pricing-grid{ grid-template-columns:1fr; } .orion-side-nav{ position:static; } }