:root{--primary:#0b6bcb;--accent:#0ecdcf;--dark:#0d1b2a;--text:#1f2937;--light:#f8fafc;--muted:#6b7280}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"Inter",system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--light)}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

.site-header{position:sticky;top:0;background:#fff;border-bottom:1px solid #e5e7eb;z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:700;color:var(--dark)}
.menu-toggle{display:none;background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:8px 12px;color:var(--dark)}
.menu-toggle:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(11,107,203,.15)}
.nav{display:flex;gap:20px;align-items:center}
.nav a{padding:8px 10px;color:var(--text)}
.nav a.active{color:var(--primary);font-weight:600}
.nav .cta{background:var(--primary);color:#fff;border-radius:8px;padding:10px 14px}
.nav a.cta.active{color:#fff}
.nav a.cta:hover,.nav a.cta.active:hover{color:#fff}

.hero{position:relative}
.hero-media{height:480px;background-size:cover;background-position:center;filter:saturate(1.2)}
.hero-content{position:relative;margin-top:-160px;background:linear-gradient(180deg,rgba(13,27,42,.75),rgba(13,27,42,.55));color:#fff;border-radius:16px;padding:32px}
.hero h1{font-size:40px;margin:0 0 12px}
.hero p{font-size:18px;margin:0 0 20px;color:#e5e7eb}
.hero-actions{display:flex;gap:12px}

.btn{display:inline-block;padding:12px 16px;border-radius:10px;border:1px solid transparent}
.btn-primary{background:var(--primary);color:#fff}
.btn-outline{border-color:#cbd5e1;color:#fff;background:transparent}
.btn:hover{opacity:.95}

.features{padding:48px 0}
.features h2{margin:0 0 16px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:16px;box-shadow:0 4px 12px rgba(0,0,0,.04);overflow:hidden}
.card h3{margin:0 0 8px;color:var(--dark)}
.card p{margin:0;color:var(--muted)}

.card-media{height:160px;background-size:cover;background-position:center;margin:-16px -16px 12px;border-top-left-radius:12px;border-top-right-radius:12px}
.features .cards{grid-template-columns:repeat(2,1fr)}
.course-options{grid-template-columns:repeat(2,1fr)}

.course-card{padding:20px}
.course-card .card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.badge-pill{background:var(--primary);color:#fff;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:700}
.course-card p{margin:0 0 10px}
.course-card .card-actions{margin-top:12px}

.gallery{padding:40px 0}
.gallery h2{margin:0 0 16px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;align-items:start}
.grid img{border-radius:12px;width:100%;height:auto;object-fit:cover}
.img-frame{border-radius:12px;overflow:hidden;background:#fff;border:0;appearance:none;-webkit-appearance:none;padding:0;cursor:zoom-in;transition:transform .18s ease,box-shadow .18s ease}
.img-frame img{width:100%;height:100%;object-fit:cover;display:block}
.img-frame{aspect-ratio:4/3;box-shadow:0 4px 12px rgba(0,0,0,.06)}
.img-frame:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.1)}
.img-frame:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(11,107,203,.25),0 8px 20px rgba(0,0,0,.1)}
.img-placeholder{border:2px dashed #cbd5e1;border-radius:12px;background:#f1f5f9;display:flex;align-items:center;justify-content:center;position:relative;text-align:center;padding:12px;aspect-ratio:16/9;width:100%}
.img-placeholder .aspect-label{position:absolute;top:8px;left:8px;background:rgba(13,27,42,.8);color:#fff;border-radius:8px;padding:4px 8px;font-size:12px}
.img-placeholder .prompt{color:var(--text);font-weight:600;line-height:1.4}

.cta-banner{padding:32px 0}
.cta-inner{background:linear-gradient(90deg,rgba(11,107,203,.1),rgba(14,205,207,.1));border:1px solid #dbeafe;border-radius:14px;padding:24px;text-align:center}

.subhero{background-size:cover;background-position:center;padding:80px 0;color:#fff;position:relative}
.subhero::after{content:"";position:absolute;inset:0;background:rgba(13,27,42,.4);z-index:0}
.subhero .container{position:relative;z-index:1}
.subhero h1,.subhero p{color:#fff}
.banner-meta{display:inline-flex;align-items:center;gap:10px;background:rgba(255,255,255,.9);color:var(--dark);border-radius:12px;padding:8px 12px;margin-top:12px;box-shadow:0 4px 12px rgba(0,0,0,.08)}
.banner-meta .badge{background:var(--primary);color:#fff;border-radius:8px;padding:4px 8px;font-size:12px;font-weight:700}
.banner-meta .text{font-weight:600}

.content{padding:32px 0}
.content h2{margin-top:0}
main.content>section.content{padding:16px 0}
.two-col{display:grid;grid-template-columns:2fr 1fr;gap:24px}
.key-points{display:grid;grid-template-columns:1fr;gap:12px}
.point{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:16px}
.point h3{margin:0 0 8px}
.point p{margin:0}

.price-box{display:inline-flex;align-items:center;background:#eff6ff;border:1px solid #dbeafe;border-radius:10px;padding:8px 12px;font-weight:700;color:var(--dark)}
.total{font-weight:700;color:var(--dark);margin-top:8px}

.checklist{list-style:none;padding:0;margin:12px 0 0;display:grid;grid-template-columns:1fr;gap:10px}
.checklist li{display:flex;align-items:flex-start;gap:10px}
.checklist li::before{content:"✓";display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:var(--primary);color:#fff;font-weight:700;font-size:14px;line-height:1;margin-top:2px}

.form{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:16px}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-span{grid-column:1/-1}
label{font-weight:600}
input,select,textarea{padding:10px;border:1px solid #cbd5e1;border-radius:10px;font:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(11,107,203,.15)}
.radio-group{display:flex;gap:16px}

.contact-aside{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:16px}
.cart{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:16px}
.cart h3{margin:0 0 10px}
.cart-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.cart-item{display:flex;align-items:center;justify-content:space-between;background:#f8fafc;border:1px solid #e5e7eb;border-radius:10px;padding:10px}
.cart-item .meta{display:flex;flex-direction:column}
.cart-item .remove{background:transparent;border:1px solid #cbd5e1;border-radius:8px;padding:6px 10px;cursor:pointer}
.cart-total{margin-top:12px;font-weight:700}
.form-actions{display:flex;gap:12px;margin-top:10px}

.site-footer{background:#fff}
.footer-inner{display:flex;align-items:center;justify-content:space-between;padding:18px 0;flex-wrap:wrap;gap:12px;border-top:1px solid #e5e7eb}
.footer-links{display:flex;gap:16px;flex-wrap:wrap}
.footer-links a{padding:6px 8px}

@media (max-width:960px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .grid{grid-template-columns:repeat(2,1fr)}
  .key-points{grid-template-columns:1fr}
  .hero-content{margin-top:-200px}
  .subhero > .container, main.container.content{padding:0 28px}
  .footer-inner{gap:10px}
  .site-footer .container{padding:0 28px}
}
@media (max-width:640px){
  .cards{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .nav{gap:12px}
  .hero-media{height:360px}
  .hero h1{font-size:32px}
  .hero-content{margin-top:-240px;padding:40px 24px 52px;border-radius:20px}
  .hero-actions{gap:16px;margin-top:12px}
  .btn{min-height:46px}
  .hero-actions{gap:14px}
  .btn{min-height:44px}
  .menu-toggle{display:inline-block}
  .nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid #e5e7eb;flex-direction:column;padding:12px 24px}
  .nav.open{display:flex}
  .nav a{padding:12px 0}
  .hero-actions{flex-direction:column}
  .btn{width:100%}
  .container{padding:16px}
  .subhero > .container, main.container.content{padding:0 24px}
  .grid img{height:auto}
  .img-placeholder{padding:10px}
  .footer-inner{flex-direction:column;align-items:center;text-align:center}
  .footer-links{justify-content:center;gap:12px}
  .footer-links a{padding:8px 10px}
  .site-footer .container{padding:0 24px}
  .form-grid{grid-template-columns:1fr}
  .form-field{min-width:0}
  input,select,textarea{width:100%}
  .radio-group{flex-wrap:wrap}
}

.lightbox-backdrop{position:fixed;inset:0;background:rgba(13,27,42,.7);display:none;align-items:center;justify-content:center;z-index:100}
.lightbox-backdrop.open{display:flex}
.lightbox-dialog{max-width:90vw;max-height:85vh;position:relative}
.lightbox-dialog img{max-width:100%;max-height:85vh;border-radius:12px;display:block}
.lightbox-close{position:absolute;top:8px;right:8px;background:rgba(255,255,255,.9);border:none;border-radius:8px;padding:8px 12px;font-weight:600;cursor:pointer}


.mt-10 {
  margin-top: 10px;
}

.mt-20 {
  margin-top: 20px;
}