:root{
    --biru:#1ba9ff; --biru-tua:#0b7fc4; --oranye:#ff6b2c;
    --tinta:#0f172a; --abu:#5b6b82; --garis:#e6edf6;
    --p1:#ffede2; --p2:#fbf0da; --p3:#fbe7e7; --p4:#f1f5fa; --p5:#e5edfd;
    --radius:20px; --lebar:1140px;
    --bayang:0 10px 30px rgba(15,42,85,.08);
    --bayang2:0 18px 45px rgba(15,42,85,.14);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font:16px/1.65 "Inter",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;color:var(--tinta);background:#fff;-webkit-font-smoothing:antialiased}
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  .wrap{max-width:var(--lebar);margin:0 auto;padding:0 20px}
  .badge{display:inline-block;background:var(--p5);color:var(--biru-tua);font-weight:700;font-size:12.5px;letter-spacing:.4px;padding:7px 14px;border-radius:999px}
  .btn{display:inline-block;border-radius:999px;padding:14px 26px;font-weight:800;font-size:15px;transition:transform .15s ease, box-shadow .15s ease}
  .btn:active{transform:translateY(1px)}
  .btn-utama{background:var(--biru);color:#fff;box-shadow:0 8px 20px rgba(27,169,255,.35)}
  .btn-utama:hover{box-shadow:0 12px 26px rgba(27,169,255,.45)}
  .btn-garis{border:2px solid var(--garis);color:var(--tinta);background:#fff}
  .btn-oranye{background:var(--oranye);color:#fff;box-shadow:0 8px 20px rgba(255,107,44,.3)}
  h1,h2,h3{line-height:1.2;letter-spacing:-.4px}
  h2{font-size:clamp(24px,3.4vw,36px);margin-bottom:10px}
  .sub{color:var(--abu);font-size:16px}
  section{padding:72px 0}
  .kepala-bagian{text-align:center;max-width:660px;margin:0 auto 42px}
  .kepala-bagian .badge{margin-bottom:14px}

  /* ---------- header ---------- */
  header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--garis)}
  .nav{display:flex;align-items:center;gap:18px;padding:14px 0}
  .logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:19px}
  .logo .tanda{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--biru),#7cc9ff);display:grid;place-items:center;color:#fff;font-size:17px}
  .menu{display:flex;gap:22px;margin-left:auto;font-size:14.5px;font-weight:600;color:var(--abu)}
  .menu a:hover{color:var(--biru-tua)}
  .nav .btn{padding:10px 20px;font-size:14px}
  .hamburger{display:none;margin-left:auto;background:#fff;border:1px solid var(--garis);border-radius:12px;padding:8px 12px;font-size:18px}
  @media(max-width:880px){
    .menu{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid var(--garis);flex-direction:column;gap:0;padding:8px 20px 16px}
    .menu.buka{display:flex}
    .menu a{padding:11px 0;border-bottom:1px solid var(--p4)}
    .hamburger{display:block}
    .nav .btn{display:none}
  }

  /* ---------- hero ---------- */
  .hero{padding:56px 0 40px;background:linear-gradient(180deg,#f7fbff 0%,#ffffff 70%)}
  .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
  @media(max-width:940px){.hero-grid{grid-template-columns:1fr;gap:30px}}
  .hero h1{font-size:clamp(30px,5vw,50px);margin:16px 0 14px}
  .hero p.besar{font-size:17.5px;color:var(--abu);max-width:520px}
  .hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
  .catatan-kecil{font-size:13px;color:var(--abu);margin-top:12px}
  .mock{background:#fff;border:1px solid var(--garis);border-radius:26px;box-shadow:var(--bayang2);padding:18px}
  .mock .bar{display:flex;gap:6px;margin-bottom:14px}
  .mock .bar span{width:10px;height:10px;border-radius:50%;background:var(--p4)}
  .mock .layar{background:var(--p4);border-radius:18px;padding:18px;display:grid;gap:12px}
  .mock .kartu-kecil{background:#fff;border-radius:14px;padding:14px;display:flex;align-items:center;gap:12px;box-shadow:0 4px 14px rgba(15,42,85,.06)}
  .mock .ikon{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--p5);font-size:18px}
  .mock .angka{font-weight:900;font-size:18px}
  .mock .ket{font-size:12.5px;color:var(--abu)}
  .stat{display:flex;gap:26px;flex-wrap:wrap;margin-top:34px}
  .stat div b{display:block;font-size:24px}
  .stat div span{font-size:13px;color:var(--abu)}

  /* ---------- fitur ---------- */
  .grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
  @media(max-width:980px){.grid3{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:640px){.grid3{grid-template-columns:1fr}}
  .fitur{background:#fff;border:1px solid var(--garis);border-radius:var(--radius);padding:22px;box-shadow:var(--bayang);transition:transform .18s ease, box-shadow .18s ease}
  .fitur:hover{transform:translateY(-4px);box-shadow:var(--bayang2)}
  .fitur .ikon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:22px;margin-bottom:14px}
  .fitur h3{font-size:17px;margin-bottom:7px}
  .fitur p{font-size:14.5px;color:var(--abu)}
  .w1{background:var(--p1)} .w2{background:var(--p2)} .w3{background:var(--p3)}
  .w4{background:var(--p4)} .w5{background:var(--p5)}

  /* ---------- perbandingan ---------- */
  .tabel-bungkus{background:#fff;border:1px solid var(--garis);border-radius:var(--radius);overflow:hidden;box-shadow:var(--bayang)}
  table{width:100%;border-collapse:collapse;font-size:15px}
  th,td{text-align:left;padding:15px 18px;border-bottom:1px solid var(--p4);vertical-align:top}
  thead th{background:var(--p4);font-size:14px}
  thead th:nth-child(2){color:var(--abu)}
  thead th:nth-child(3){color:var(--biru-tua)}
  tbody tr:last-child td{border-bottom:0}
  .tanda-silang{color:#b91c1c;font-weight:700}
  .tanda-centang{color:#15803d;font-weight:700}

  /* ---------- testimoni ---------- */
  .testi{background:#fff;border:1px solid var(--garis);border-radius:var(--radius);padding:22px;box-shadow:var(--bayang)}
  .testi .kutip{font-size:15px;color:#26334a}
  .orang{display:flex;align-items:center;gap:12px;margin-top:16px}
  .avatar{width:42px;height:42px;border-radius:50%;background:var(--p5);display:grid;place-items:center;font-weight:800;color:var(--biru-tua)}
  .orang b{display:block;font-size:14.5px}
  .orang span{font-size:12.5px;color:var(--abu)}

  /* ---------- harga ---------- */
  .paket{background:#fff;border:1px solid var(--garis);border-radius:var(--radius);padding:26px;display:flex;flex-direction:column;box-shadow:var(--bayang)}
  .paket.populer{border:2px solid var(--biru);box-shadow:var(--bayang2);position:relative}
  .paket.populer::after{content:"PALING DIPILIH";position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--biru);color:#fff;font-size:11px;font-weight:800;letter-spacing:.6px;padding:5px 12px;border-radius:999px}
  .paket h3{font-size:18px;margin-bottom:4px}
  .harga{font-size:30px;font-weight:900;margin:12px 0 2px}
  .harga small{font-size:14px;font-weight:600;color:var(--abu)}
  .paket ul{list-style:none;margin:18px 0 22px;display:grid;gap:9px}
  .paket li{font-size:14.5px;color:#374151;padding-left:24px;position:relative}
  .paket li::before{content:"✓";position:absolute;left:0;color:#15803d;font-weight:900}
  .paket .btn{margin-top:auto;text-align:center}

  /* ---------- faq ---------- */
  .faq{background:#fff;border:1px solid var(--garis);border-radius:16px;margin-bottom:12px;overflow:hidden}
  .faq button{width:100%;text-align:left;background:none;border:0;font:inherit;font-weight:700;padding:18px 20px;cursor:pointer;display:flex;justify-content:space-between;gap:14px}
  .faq .jawab{display:none;padding:0 20px 18px;color:var(--abu);font-size:14.5px}
  .faq.buka .jawab{display:block}
  .faq.buka button{color:var(--biru-tua)}

  /* ---------- cta & footer ---------- */
  .cta{background:linear-gradient(135deg,var(--p5),var(--p1));border-radius:28px;padding:44px 30px;text-align:center}
  footer{background:#0b1424;color:#94a3b8;padding:44px 0;margin-top:20px;font-size:14px}
  footer .kolom{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px}
  @media(max-width:880px){footer .kolom{grid-template-columns:1fr 1fr}}
  footer b{color:#fff;display:block;margin-bottom:10px;font-size:14.5px}
  footer a{display:block;padding:3px 0}
  footer a:hover{color:#fff}
  .bawah{border-top:1px solid #1e293b;margin-top:26px;padding-top:18px;font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

  /* reveal */
  .muncul{opacity:0;transform:translateY(14px);transition:opacity .5s ease, transform .5s ease}
  .muncul.tampak{opacity:1;transform:none}

/* badge yang bisa diklik (daftar subtes → halaman materi) */
.badge-taut{margin:6px 6px 0 0;background:#fff;border:1.5px solid var(--biru);color:var(--biru-tua);cursor:pointer;transition:background .15s ease,color .15s ease,transform .15s ease}
.badge-taut:hover{background:var(--biru);color:#fff;transform:translateY(-1px)}

/* ---------- beranda peserta (tema gelap, pola seperti referensi) ---------- */
body.tema-gelap{background:#0b1424;color:#e5e7eb}
body.tema-gelap header{background:rgba(11,20,36,.92);border-bottom:1px solid #1e293b}
body.tema-gelap .logo,body.tema-gelap .menu a{color:#e5e7eb}
body.tema-gelap .menu a:hover{color:#7cc9ff}
body.tema-gelap .btn-garis{background:#111c31;border-color:#1e2a44;color:#e5e7eb}
.bgn{padding:18px 0 92px}
.bgn-wrap{max-width:780px;margin:0 auto;padding:0 16px}
.kartu-profil{background:linear-gradient(135deg,#1ba9ff,#0b7fc4);border-radius:22px;padding:20px;color:#fff;box-shadow:0 14px 34px rgba(27,169,255,.28)}
.avatar-besar{width:56px;height:56px;border-radius:50%;background:#fff;color:#0b7fc4;display:grid;place-items:center;font-weight:900;font-size:22px;flex-shrink:0}
.sapaan{font-size:19px;font-weight:600}
.ket-profil{font-size:13px;opacity:.92;margin-top:2px}
.hitung-hari{margin-left:auto;background:rgba(255,255,255,.2);border-radius:12px;padding:8px 12px;font-weight:800;font-size:13px;white-space:nowrap}
.bar-xp{height:9px;background:rgba(255,255,255,.28);border-radius:999px;overflow:hidden;margin-top:6px}
.bar-xp span{display:block;height:100%;background:#ffe066}
.menu-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:18px}
@media(min-width:640px){.menu-grid{grid-template-columns:repeat(4,1fr)}}
.kotak-bgn{background:#111c31;border:1px solid #1e2a44;border-radius:16px;padding:14px;display:block;color:#e5e7eb;text-decoration:none;transition:border-color .15s ease,transform .15s ease}
.kotak-bgn:hover{border-color:#1ba9ff;transform:translateY(-2px)}
.ikon-bgn{font-size:22px;margin-bottom:6px}
.kotak-bgn b{display:block;font-size:15px}
.kotak-bgn .ket-profil{color:#9fb0c9}
.segera{display:inline-block;margin-top:6px;font-size:11px;font-weight:800;background:#1e2a44;color:#7cc9ff;border-radius:999px;padding:3px 8px}
.bgn-dua{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}
@media(max-width:700px){.bgn-dua{grid-template-columns:1fr}}
.panel-bgn{background:#111c31;border:1px solid #1e2a44;border-radius:16px;padding:16px}
.panel-bgn b{color:#fff}
.panel-bgn .ket-profil{color:#9fb0c9}
.baris-progres{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:7px 0;border-bottom:1px solid #1a253c;font-size:14px}
.baris-progres:last-child{border-bottom:0}
.baris-progres a{color:#e5e7eb}
.tanda{background:#1e2a44;color:#9fb0c9;border:0;border-radius:999px;padding:5px 10px;font:inherit;font-size:12px;font-weight:700;cursor:pointer}
.tanda.aktif{background:#0f7a3d;color:#fff}
.nav-bawah{position:fixed;left:0;right:0;bottom:0;display:flex;justify-content:space-around;background:rgba(11,20,36,.97);border-top:1px solid #1e293b;padding:8px 0 10px;z-index:60}
.nav-bawah a{display:grid;justify-items:center;gap:2px;font-size:11px;color:#9fb0c9;text-decoration:none}
.nav-bawah a.aktif{color:#1ba9ff}
body.tema-gelap footer{background:#08101d}