/* ===== Mobile‑First Base (shared) ===== */
:root{--amber:#f59e0b;--text:#0a0a0a;--muted:#6b7280;--border:#e5e7eb;--card:#fff;--radius:18px}
*{box-sizing:border-box}
html{line-height:1.4;-webkit-text-size-adjust:100%}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:#fff;word-wrap:break-word;overflow-wrap:break-word}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible{outline:3px solid #111;outline-offset:2px}
img{max-width:100%;height:auto;display:block}
.container{max-width:1120px;margin:0 auto;padding:0 14px}
.muted{color:var(--muted)} .small{font-size:12px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px}
.shadow-xl{box-shadow:0 10px 20px rgba(0,0,0,0.07)}
.section{padding:36px 0}
.section-title{font-size:1.5rem;margin:0 0 8px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 16px;border-radius:14px;border:1px solid var(--border);font-weight:600;transition:transform .06s ease}
.btn:active{transform:translateY(1px)}
.btn-sm{min-height:38px;padding:0 12px;border-radius:12px;font-size:14px}
.btn-lg{min-height:50px;padding:0 18px;border-radius:16px;width:100%}
.btn-primary{background:var(--amber);color:#fff;border:none}
.btn-outline{background:#fff;color:var(--text)}
.site-header{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(6px);border-bottom:1px solid #fef3c7;z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0}
.brand{font-weight:800}
.menu-btn{display:inline-flex;flex-direction:column;gap:4px;background:transparent;border:0;padding:8px;border-radius:10px}
.menu-btn .menu-line{width:22px;height:2px;background:#111;display:block}
.nav{position:fixed;left:0;right:0;top:56px;background:#fff;border-bottom:1px solid var(--border);padding:12px 14px;display:none;flex-direction:column;gap:10px}
.nav.open{display:flex}
.nav a{padding:6px 2px}
.hero{background:radial-gradient(800px 400px at 85% 0%,#fde68a 0%,transparent 60%)}
.hero-wrap{padding:34px 0}
.pill{display:inline-flex;gap:8px;background:#111;color:#fff;border-radius:999px;padding:6px 10px;font-size:12px;margin-bottom:10px}
.hero h1{font-size:2rem;line-height:1.2;margin:0 0 8px}
.lead{font-size:1rem;color:var(--muted)}
.cta-row{display:grid;grid-template-columns:1fr;gap:10px;margin:14px 0}
.grid{display:grid;gap:12px}
.grid-1-2{grid-template-columns:1fr}
.grid-1-2-3{grid-template-columns:1fr}
.course .course-tag{font-size:12px;color:var(--muted);margin-bottom:6px}
.course h3{margin:2px 0 6px}
.course-cta{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}
.detail .detail-head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.price{font-size:32px;font-weight:800}
.site-footer{border-top:1px solid var(--border);padding:22px 0;background:#fff}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.footer-nav{display:flex;gap:12px;flex-wrap:wrap}
:target{scroll-margin-top:70px}
/* PM page extras */
.hero-grid{display:grid;gap:16px;padding:30px 0}
.facts{display:grid;grid-template-columns:1fr;gap:8px;margin-top:8px;color:var(--muted);font-size:14px}
.fact{display:flex;gap:8px} .fact dt{font-weight:600}
.ticks{list-style:none;padding-left:0;margin:8px 0 0}
.ticks li{position:relative;padding-left:22px;margin:6px 0}
.ticks li:before{content:"✓";position:absolute;left:0;top:0;color:#10b981;font-weight:800}
.instructor{display:flex;gap:12px;align-items:center;margin-top:10px}
.avatar{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,#fde68a,#f59e0b)}
/* breakpoints */
@media (min-width: 560px){
  .cta-row{grid-template-columns:1fr 1fr}
  .btn-lg{width:auto}
  .facts{grid-template-columns:repeat(3,1fr)}
}
@media (min-width: 768px){
  .hero h1{font-size:2.4rem}
  .section{padding:44px 0}
  .grid-1-2{grid-template-columns:1fr 1fr}
  .grid-1-2-3{grid-template-columns:repeat(2,1fr)}
}
@media (min-width: 1024px){
  .nav{position:static;display:flex !important;flex-direction:row;gap:16px;padding:0;border:0}
  .menu-btn{display:none}
  .hero-wrap{padding:48px 0}
  .grid-1-2-3{grid-template-columns:repeat(3,1fr)}
  .hero-grid{grid-template-columns:1.2fr 1fr;align-items:center;padding:48px 0}
  .hero h1{font-size:2.7rem}
}