:root{
  --blue:#2563eb; --indigo:#4f46e5; --sky:#0ea5e9; --ink:#0f172a; --muted:#64748b;
  --line:#e2e8f0; --bg:#ffffff; --soft:#f8fafc; --card:#ffffff;
  --ok:#059669; --amber:#f59e0b; --radius:16px;
  --shadow:0 10px 30px rgba(15,23,42,.08); --shadow-sm:0 4px 14px rgba(15,23,42,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;font-weight:600;font-size:14.5px;padding:12px 20px;border-radius:12px;transition:.2s}
.btn-primary{background:linear-gradient(135deg,var(--indigo),var(--blue));color:#fff;box-shadow:0 8px 20px rgba(79,70,229,.28)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(79,70,229,.36)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:#c7d2fe;background:#f5f7ff}
.btn-sm{padding:9px 15px;font-size:13.5px;border-radius:10px}

/* ---------- header ---------- */
header.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em}
.brand .logo{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--indigo),var(--sky));display:grid;place-items:center;color:#fff;font-weight:800}
.brand small{display:block;font-size:9.5px;font-weight:600;letter-spacing:.16em;color:var(--muted)}
.brand b{font-size:18px;line-height:1}
nav.links{display:flex;gap:26px;align-items:center}
nav.links a{font-size:14.5px;font-weight:600;color:#334155}
nav.links a:hover{color:var(--blue)}
.nav-cta{display:flex;gap:10px;align-items:center}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:8px 11px;font-size:18px;cursor:pointer}
@media(max-width:980px){
  nav.links{display:none}
  nav.links.open{display:flex;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:8px 20px 16px;border-bottom:1px solid var(--line);align-items:stretch}
  nav.links.open a{padding:11px 0;border-bottom:1px solid #f1f5f9}
  .burger{display:block}
  .nav-cta .btn-ghost{display:none}
}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:radial-gradient(1200px 500px at 80% -10%,#e0e7ff 0%,transparent 60%),radial-gradient(900px 400px at -10% 10%,#e0f2fe 0%,transparent 55%),#fff}
.hero-inner{padding:64px 0 56px;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
@media(max-width:980px){.hero-inner{grid-template-columns:1fr;padding:44px 0 36px}}
.pill{display:inline-flex;align-items:center;gap:8px;background:#eef2ff;color:#4338ca;font-weight:700;font-size:12.5px;padding:7px 14px;border-radius:999px;margin-bottom:16px}
.hero h1{font-size:46px;line-height:1.1;margin:0 0 14px;letter-spacing:-.03em}
.hero h1 .grad{background:linear-gradient(135deg,var(--indigo),var(--sky));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:16.5px;color:#334155;margin:0 0 14px}
.hero .hybrid{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 20px}
.chip{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);border-radius:999px;padding:8px 14px;font-weight:600;font-size:13.5px}
.chip i{font-style:normal;color:var(--ok)}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap}
.hero .trust{margin-top:22px;font-size:13.5px;color:var(--muted);max-width:520px}
@media(max-width:980px){.hero h1{font-size:34px}}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:22px}
.hero-card h4{margin:0 0 14px;font-size:14px;color:var(--muted);text-transform:uppercase;letter-spacing:.12em}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.stat{background:var(--soft);border:1px solid var(--line);border-radius:14px;padding:14px;text-align:center}
.stat b{display:block;font-size:26px;letter-spacing:-.02em}
.stat span{font-size:12px;color:var(--muted)}
.live{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;color:var(--ok);font-weight:700}
.live .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- sections ---------- */
section{padding:64px 0}
section.soft{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{text-align:center;max-width:720px;margin:0 auto 38px}
.sec-head .kicker{font-weight:700;color:var(--indigo);font-size:13px;letter-spacing:.14em;text-transform:uppercase}
.sec-head h2{font-size:32px;letter-spacing:-.02em;margin:8px 0 10px}
.sec-head p{color:var(--muted);margin:0}
@media(max-width:700px){.sec-head h2{font-size:25px}section{padding:48px 0}}

.grid{display:grid;gap:18px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
@media(max-width:980px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.g3,.g4,.g2{grid-template-columns:1fr}}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:20px}
.card h3{margin:12px 0 6px;font-size:17px}
.card p{margin:0;color:var(--muted);font-size:14px}
.ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:#eef2ff;color:var(--indigo);font-size:20px}

.badges{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:8px}
.badge{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 16px;text-align:center;box-shadow:var(--shadow-sm);min-width:140px}
.badge b{display:block;font-size:14.5px}
.badge span{font-size:11.5px;color:var(--ok);font-weight:700}
.mitra{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.mitra .m{background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px 14px;font-weight:600;font-size:13.5px;color:#334155}

.course{display:flex;flex-direction:column;overflow:hidden;padding:0}
.course .thumb{height:150px;background:linear-gradient(135deg,#4f46e5,#0ea5e9);display:grid;place-items:center;color:#fff;font-weight:800;letter-spacing:.1em;font-size:13px}
.course .body{padding:16px}
.course .tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.tag{font-size:11px;font-weight:700;border-radius:999px;padding:4px 9px;background:#eef2ff;color:#4338ca}
.tag.g{background:#ecfdf5;color:#047857}
.tag.a{background:#fffbeb;color:#b45309}
.course h3{font-size:16px;margin:6px 0 6px;line-height:1.35}
.course .by{font-size:12.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.course .meta{display:flex;gap:14px;font-size:12.5px;color:var(--muted);margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}

.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;box-shadow:var(--shadow-sm)}
.faq summary{cursor:pointer;font-weight:600;padding:15px 18px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";float:right;color:var(--indigo);font-weight:800}
.faq details[open] summary:after{content:"–"}
.faq .ans{padding:0 18px 16px;color:var(--muted);font-size:14px}

.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media(max-width:980px){.gallery{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.gallery{grid-template-columns:1fr}}
.gitem{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;box-shadow:var(--shadow-sm)}
.gitem .ph{height:96px;background:linear-gradient(135deg,#e0e7ff,#e0f2fe);display:grid;place-items:center;color:#4338ca;font-weight:800}
.gitem .cap{padding:10px 12px;font-size:12.5px;color:#334155}

.cta{background:linear-gradient(135deg,#4f46e5,#0ea5e9);border-radius:22px;color:#fff;padding:40px;text-align:center}
.cta h2{margin:0 0 10px;font-size:30px;letter-spacing:-.02em}
.cta p{opacity:.92;margin:0 0 20px}
.promo{background:rgba(255,255,255,.14);border:1px dashed rgba(255,255,255,.5);border-radius:12px;padding:12px;margin:16px auto 0;max-width:640px;font-weight:600}

/* ---------- forms ---------- */
.auth{max-width:440px;margin:48px auto;padding:28px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
.auth h1{font-size:24px;margin:0 0 6px}
.auth p.sub{color:var(--muted);margin:0 0 20px;font-size:14px}
label{display:block;font-size:13px;font-weight:600;margin:12px 0 5px}
input,select,textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;font-size:14.5px;font-family:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:2px solid #c7d2fe;border-color:#a5b4fc}
.form-foot{margin-top:16px;font-size:13.5px;color:var(--muted);text-align:center}
.filters{display:grid;grid-template-columns:2fr 1fr 1.3fr;gap:12px;align-items:end}
@media(max-width:820px){.filters{grid-template-columns:1fr}}

/* ---------- footer ---------- */
footer.site{background:#0b1220;color:#cbd5e1;padding:52px 0 26px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}
footer.site h5{color:#fff;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin:0 0 12px}
footer.site a{display:block;color:#94a3b8;font-size:14px;padding:4px 0}
footer.site a:hover{color:#fff}
.soc{display:flex;gap:10px;margin-top:12px}
.soc span{width:34px;height:34px;border-radius:9px;background:#1e293b;display:grid;place-items:center;font-weight:700;font-size:13px;color:#e2e8f0}
.copy{border-top:1px solid #1e293b;margin-top:32px;padding-top:18px;font-size:13px;color:#64748b;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

.wa-float{position:fixed;right:18px;bottom:18px;z-index:60;background:#25d366;color:#fff;border-radius:999px;padding:13px 18px;font-weight:700;box-shadow:0 10px 24px rgba(37,211,102,.4)}