:root {
  --ground: #141B2E; --surface: #1E2844; --surface-2: #28345A; --garis: #34416B;
  --lime: #9BCB3C; --lime-deep: #6E9A22; --red: #E5484D; --yellow: #FFC83D;
  --cream: #F4F2EC; --muted: #C2C8D6; --redup: #8C95AD;
  --judul: "Fredoka", system-ui, sans-serif;
  --badan: "Nunito", system-ui, sans-serif;
  --radius: 16px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--ground); color: var(--cream);
  font: 500 16px/1.55 var(--badan);
  background-image: radial-gradient(circle at 15% -10%, rgba(155,203,60,.12), transparent 45%),
                    radial-gradient(circle at 110% 20%, rgba(255,200,61,.06), transparent 40%);
  background-attachment: fixed; min-height: 100vh;
}
a { color: var(--lime); }
h1, h2, h3 { font-family: var(--judul); font-weight: 600; line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: clamp(26px, 6vw, 34px); }
h2 { font-size: 21px; }
h3 { font-size: 17px; }
code { font-family: Consolas, monospace; font-size: .9em; background: var(--surface-2); padding: 1px 5px; border-radius: 5px; }
[hidden] { display: none !important; }

.isi { max-width: 760px; margin: 0 auto; padding: 20px 16px 64px; }
.memuat { color: var(--redup); text-align: center; padding: 60px 0; }

/* bilah atas */
.atas {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; background: rgba(20,27,46,.92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--garis);
}
.logo img { height: 30px; display: block; }
.menu-tombol { margin-left: auto; background: none; border: 0; color: var(--cream); font-size: 26px; padding: 4px 8px; cursor: pointer; }
.menu { display: none; position: absolute; top: 100%; right: 8px; left: 8px; flex-direction: column;
  background: var(--surface); border: 1px solid var(--garis); border-radius: var(--radius); padding: 8px; box-shadow: 0 12px 30px rgba(0,0,0,.4); }
.menu.buka { display: flex; }
.menu a, .menu button {
  color: var(--cream); text-decoration: none; font: 700 16px var(--badan); padding: 12px 14px; border-radius: 10px;
  background: none; border: 0; text-align: left; cursor: pointer;
}
.menu a:hover, .menu button:hover, .menu a.aktif { background: var(--surface-2); }
.menu a.aktif { color: var(--lime); }
@media (min-width: 820px) {
  .menu-tombol { display: none; }
  .menu { display: flex; position: static; flex-direction: row; background: none; border: 0; box-shadow: none; padding: 0; margin-left: auto; }
  .menu a, .menu button { padding: 8px 12px; font-size: 15px; }
}

/* kartu & tombol */
.kartu { background: var(--surface); border: 1px solid var(--garis); border-radius: var(--radius); padding: 18px; margin: 0 0 14px; }
.tombol {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px;
  padding: 12px 20px; border-radius: 999px; border: 0; cursor: pointer; text-decoration: none;
  font: 800 16px var(--badan); background: var(--lime); color: #12210A;
}
.tombol:hover { filter: brightness(1.06); }
.tombol:disabled { opacity: .6; cursor: wait; }
.tombol.kedua { background: var(--surface-2); color: var(--cream); border: 1px solid var(--garis); }
.tombol.lebar { width: 100%; }
.tombol.kecil { min-height: 36px; padding: 6px 14px; font-size: 14px; }
.tombol.bahaya { background: var(--red); color: #fff; }
.baris-tombol { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }

label { display: block; font-weight: 800; margin: 14px 0 6px; }
input[type=email], input[type=password], input[type=text] {
  width: 100%; min-height: 50px; padding: 12px 14px; border-radius: 12px; font: 600 17px var(--badan);
  background: var(--ground); color: var(--cream); border: 2px solid var(--garis);
}
input:focus { outline: none; border-color: var(--lime); }
.kecil-redup { color: var(--redup); font-size: 14px; }

.pesan { border-radius: 12px; padding: 12px 14px; margin: 14px 0 0; font-weight: 700; }
.pesan.galat { background: rgba(229,72,77,.15); border: 1px solid var(--red); color: #FFD5D6; }
.pesan.oke { background: rgba(155,203,60,.14); border: 1px solid var(--lime); color: #E4F5C5; }
.pesan.tunggu { background: rgba(255,200,61,.12); border: 1px solid var(--yellow); color: #FFEBB8; }

/* masuk */
.masuk { max-width: 420px; margin: 4vh auto 0; text-align: center; }
.masuk .kartu { text-align: left; }
.masuk img.maskot { width: 110px; margin-bottom: 6px; }
.masuk .logo-besar { height: 36px; margin: 0 auto 18px; display: block; }

/* pilih jalur */
.pilihan { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; margin-top: 16px; }
.pilihan button {
  background: var(--surface); border: 2px solid var(--garis); border-radius: var(--radius); color: var(--cream);
  padding: 20px 12px; cursor: pointer; font: 700 15px var(--badan); text-align: center;
}
.pilihan button:hover, .pilihan button.dipilih { border-color: var(--lime); }
.pilihan .ikon { font-size: 40px; display: block; margin-bottom: 6px; }
.pilihan b { display: block; font: 600 20px var(--judul); color: var(--lime); }

/* beranda */
.sapa { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.sapa img { width: 64px; flex: none; }
.sapa p { margin: 0; color: var(--muted); }
.pil { display: inline-flex; align-items: center; gap: 6px; background: var(--surface-2); border-radius: 999px; padding: 3px 12px; font-size: 14px; font-weight: 800; }
.pil button { background: none; border: 0; color: var(--lime); font: 800 14px var(--badan); cursor: pointer; padding: 0; text-decoration: underline; }
.bilah { height: 12px; background: var(--ground); border-radius: 999px; overflow: hidden; margin: 10px 0 6px; }
.bilah span { display: block; height: 100%; background: linear-gradient(90deg, var(--lime-deep), var(--lime)); border-radius: 999px; transition: width .4s; }
.lanjut { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--cream); }
.lanjut .nomor { flex: none; }
.lanjut .panah { margin-left: auto; font-size: 22px; color: var(--lime); }

.modul { margin: 22px 0 8px; display: flex; align-items: baseline; gap: 10px; }
.modul h2 { margin: 0; }
.modul span { color: var(--redup); font-size: 14px; font-weight: 700; }
.daftar { list-style: none; margin: 0; padding: 0; border: 1px solid var(--garis); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.daftar li + li { border-top: 1px solid var(--garis); }
.daftar a { display: flex; align-items: center; gap: 12px; padding: 14px 16px; color: var(--cream); text-decoration: none; }
.daftar a:hover { background: var(--surface-2); }
.daftar .judul { font-weight: 700; }
.daftar .segera { margin-left: auto; font-size: 12px; font-weight: 800; color: var(--yellow); white-space: nowrap; }
.daftar li.redup a { color: var(--redup); }
.nomor {
  flex: none; min-width: 44px; height: 30px; padding: 0 8px; border-radius: 999px; display: grid; place-items: center;
  font: 600 13px var(--judul); background: var(--surface-2); color: var(--muted);
}
.nomor.selesai { background: var(--lime); color: #12210A; }

/* lesson */
.kembali { display: inline-block; margin-bottom: 12px; font-weight: 800; text-decoration: none; }
.label-modul { color: var(--lime); font-weight: 800; font-size: 14px; text-transform: uppercase; letter-spacing: .04em; margin: 0 0 4px; }
.video { position: relative; width: 100%; aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden; background: #000; margin: 6px 0 16px; }
.video.tegak { aspect-ratio: 9 / 16; max-width: 380px; margin-left: auto; margin-right: auto; }
.video video { position: absolute; inset: 0; width: 100%; height: 100%; background: #000; }
.video-kosong {
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 8px;
  border: 2px dashed var(--garis); border-radius: var(--radius); padding: 36px 18px; margin: 6px 0 16px; color: var(--muted);
}
.video-kosong img { width: 80px; }
.video-kosong b { font: 600 19px var(--judul); color: var(--cream); }
.catatan ul { margin: 0; padding-left: 20px; }
.catatan li { margin: 8px 0; }
.catatan li ul li { margin: 4px 0; }
.ceklis { list-style: none; padding: 0; margin: 0; }
.ceklis label { display: flex; gap: 12px; align-items: flex-start; font-weight: 700; margin: 0; padding: 10px 0; cursor: pointer; }
.ceklis input { width: 22px; height: 22px; accent-color: var(--lime); flex: none; margin-top: 1px; }
.tandai.selesai { background: var(--surface-2); color: var(--lime); border: 2px solid var(--lime); }
.navigasi { display: flex; justify-content: space-between; gap: 10px; margin-top: 18px; }
.navigasi a { max-width: 48%; }

/* tabel admin */
.gulir { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--garis); vertical-align: top; }
th { color: var(--redup); font-weight: 800; white-space: nowrap; }
.angka { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin-bottom: 14px; }
.angka div { background: var(--surface); border: 1px solid var(--garis); border-radius: var(--radius); padding: 12px 14px; }
.angka b { display: block; font: 600 26px var(--judul); color: var(--lime); }
.lencana { display: inline-block; border-radius: 999px; padding: 1px 10px; font-size: 12px; font-weight: 800; background: var(--surface-2); }
.lencana.uji { background: var(--yellow); color: #3a2a00; }
.lencana.terkirim, .lencana.aktif { color: var(--lime); }
.lencana.antre { color: var(--yellow); }
.lencana.gagal, .lencana.nonaktif { color: var(--red); }
@media (min-width: 900px) { body.lebar .isi { max-width: 1100px; } }