/* style.css: minimalis, default dark, light lewat tombol tema */
:root {
  --bg: #0b0f12; --kartu: #12181d; --garis: #1f2a31; --teks: #e7eef2; --redup: #8a9aa5;
  --aksen: #2dd4bf; --aksen-teks: #04201c; --benar: #34d399; --salah: #f87171;
}
[data-theme="light"] {
  --bg: #f5f8f9; --kartu: #ffffff; --garis: #d9e2e6; --teks: #14212a; --redup: #5a6b76;
  --aksen: #0d9488; --aksen-teks: #ffffff; --benar: #059669; --salah: #dc2626;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--teks); line-height: 1.65;
  font-family: "Nunito", "Varela Round", ui-rounded, system-ui, -apple-system, "Segoe UI", sans-serif;
}
a { color: var(--aksen); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--aksen); outline-offset: 2px; }
code { background: var(--kartu); border: 1px solid var(--garis); padding: 1px 6px; border-radius: 6px; }
h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); line-height: 1.2; margin: 0 0 .6rem; }
h2 { font-size: 1.25rem; margin: 2rem 0 .5rem; }
h3 { margin: .4rem 0; font-size: 1.05rem; }
.redup { color: var(--redup); }

/* navigasi */
.nav { display: flex; align-items: center; gap: 1rem; padding: .7rem 1.2rem; border-bottom: 1px solid var(--garis);
  position: sticky; top: 0; background: var(--bg); z-index: 5; flex-wrap: wrap; }
.nav nav { display: flex; gap: 1.1rem; flex: 1; flex-wrap: wrap; }
.nav nav a { color: var(--redup); }
.nav nav a:hover { color: var(--teks); text-decoration: none; }
.kanan { display: flex; align-items: center; gap: .6rem; margin-left: auto; }
.ikon { background: none; border: 1px solid var(--garis); color: var(--teks); border-radius: 10px; width: 38px; height: 38px; cursor: pointer; }
.avatar { width: 38px; height: 38px; border-radius: 50%; border: 2px solid var(--aksen); display: grid; place-items: center;
  overflow: hidden; font-size: 1.3rem; background: var(--kartu); }
.avatar:hover { text-decoration: none; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }

/* logo (diberi latar sendiri supaya terbaca di dark maupun light) */
.chip { display: inline-flex; align-items: center; border-radius: 12px; padding: 6px 12px; }
.chip img { display: block; height: 34px; width: auto; }
.chip-yulab { background: #0a0a0a; }
.chip-poli { background: #ffffff; border: 1px solid var(--garis); }
.chip-poli img { height: 40px; }
.logos { display: flex; gap: .7rem; align-items: center; }
.logos.besar { margin: 1.2rem 0 2rem; }
.logos.besar .chip img { height: 56px; }

main { max-width: 1000px; margin: 0 auto; padding: 2rem 1.2rem 3rem; }
.sempit { max-width: 720px; margin: 0 auto; }
footer { border-top: 1px solid var(--garis); padding: 1.2rem; display: flex; justify-content: space-between;
  align-items: center; gap: 1rem; flex-wrap: wrap; color: var(--redup); font-size: .9rem; }

/* hero */
.hero { padding: 3rem 0 2rem; max-width: 680px; }
.hero p { color: var(--redup); font-size: 1.1rem; }
.aksi { display: flex; gap: .7rem; margin: 1.5rem 0; flex-wrap: wrap; }
.btn { background: var(--aksen); color: var(--aksen-teks); border: 1px solid var(--aksen); padding: .6rem 1.2rem;
  border-radius: 10px; font: inherit; font-weight: 700; cursor: pointer; display: inline-block; }
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--teks); border-color: var(--garis); }

/* kartu */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; margin-top: 1rem; }
.grid.kecil { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.kartu { background: var(--kartu); border: 1px solid var(--garis); border-radius: 14px; padding: 1.1rem; color: var(--teks);
  display: block; font: inherit; text-align: left; }
a.kartu:hover, .kartu.pilih:hover { border-color: var(--aksen); text-decoration: none; }
.kartu p { color: var(--redup); margin: .2rem 0 .8rem; font-size: .95rem; }
.kartu.diam { text-align: center; }
.kartu.pilih { cursor: pointer; text-align: center; display: flex; flex-direction: column; gap: .3rem; align-items: center; }
.kartu.aktif { border-color: var(--aksen); box-shadow: 0 0 0 1px var(--aksen); }
.emoji { font-size: 2rem; }
.inisial { width: 52px; height: 52px; border-radius: 50%; background: var(--aksen); color: var(--aksen-teks);
  display: inline-grid; place-items: center; font-weight: 800; font-size: 1.4rem; }
.lencana { font-size: .8rem; border: 1px solid var(--aksen); color: var(--aksen); padding: 2px 10px; border-radius: 99px; }
.lencana.kosong { border-color: var(--garis); color: var(--redup); }

/* materi */
.level { border-left: 3px solid var(--aksen); padding-left: 1rem; margin: 1.5rem 0; }
.level h2 { margin-top: 0; }
.level ul, main ul { padding-left: 1.2rem; }
.level li { margin: .3rem 0; }
.pindah { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-size: .95rem; }

/* kuis */
.soal { border: 1px solid var(--garis); border-radius: 14px; padding: 1rem 1.1rem; margin: 1rem 0; background: var(--kartu); }
.soal legend { font-weight: 700; padding: 0 .4rem; }
.soal.benar { border-color: var(--benar); }
.soal.salah { border-color: var(--salah); }
.opsi { display: flex; gap: .6rem; padding: .4rem .3rem; cursor: pointer; align-items: flex-start; }
.opsi input { margin-top: .4rem; accent-color: var(--aksen); }
.jelas { color: var(--redup); margin: .6rem 0 0; font-size: .95rem; }
.hasil { background: var(--kartu); border: 1px solid var(--garis); border-radius: 14px; padding: 1.2rem; margin: 1rem 0; }
.hasil h2 { margin-top: .2rem; }
.skor { font-size: 3rem; font-weight: 800; color: var(--aksen); margin: 0; line-height: 1.1; }
.bar { list-style: none; padding: 0 !important; }
.bar li { display: grid; grid-template-columns: 1fr 120px 44px; gap: .6rem; align-items: center; margin: .4rem 0; font-size: .9rem; }
.bar .isi { background: var(--garis); border-radius: 99px; height: 8px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--aksen); }
.pesan { border: 1px solid var(--aksen); border-radius: 10px; padding: .6rem 1rem; }
.unggah { display: flex; gap: .7rem; flex-wrap: wrap; align-items: center; margin: .8rem 0; }
.unggah input[type=file] { color: var(--redup); max-width: 100%; }

/* terminal */
.terminal { background: #0a0a0a; color: #d1fae5; border: 1px solid var(--garis); border-radius: 12px; padding: 1rem;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; font-size: .9rem; margin: 1rem 0; }
.terminal pre { margin: 0 0 .5rem; white-space: pre-wrap; word-break: break-word; max-height: 360px; overflow-y: auto; }
.terminal .baris { display: flex; gap: .5rem; }
.terminal .baris span { color: #2dd4bf; }
.terminal input { flex: 1; background: none; border: none; color: inherit; font: inherit; outline: none; }

@media (prefers-reduced-motion: no-preference) { .kartu { transition: border-color .15s; } }
@media (max-width: 600px) { .bar li { grid-template-columns: 1fr 70px 40px; } }

/* menu terkunci */
.nav nav a.terkunci { opacity: .55; }
.btn.nonaktif { opacity: .55; cursor: not-allowed; }

/* panel karakter di profil */
.profil { position: relative; }
button.avatar { cursor: pointer; padding: 0; font-family: inherit; color: inherit; }
.panel { position: absolute; right: 0; top: 48px; width: min(300px, 88vw); background: var(--kartu);
  border: 1px solid var(--garis); border-radius: 14px; padding: 1rem; z-index: 10; }
.panel[hidden] { display: none; }
.panel h3 { margin: 0 0 .6rem; }
.pilihan-kecil { display: grid; grid-template-columns: repeat(6, 1fr); gap: .4rem; }
.pilihan-kecil button { background: none; border: 1px solid var(--garis); border-radius: 10px; font-size: 1.4rem;
  padding: .3rem 0; cursor: pointer; }
.pilihan-kecil button:hover, .pilihan-kecil button.aktif { border-color: var(--aksen); }
.unggah-kecil { display: flex; flex-direction: column; gap: .5rem; margin-top: .9rem; font-size: .85rem; color: var(--redup); }
.unggah-kecil input[type=file] { max-width: 100%; color: var(--redup); }

/* ---- materi bertingkat ---- */
.meta { color: var(--redup); font-size: .85rem; margin: .2rem 0; }
.toc { background: var(--kartu); border: 1px solid var(--garis); border-radius: 14px; padding: 1rem 1.2rem; margin: 1.2rem 0; }
.toc ol { margin: .5rem 0 0; padding-left: 1.2rem; }
.toc li { margin: .25rem 0; }
.tingkat { display: inline-block; font-size: .7rem; font-weight: 700; padding: 1px 8px; border-radius: 99px; border: 1px solid var(--garis);
  color: var(--redup); vertical-align: middle; margin-left: .3rem; }
.t-dasar { color: var(--benar); border-color: var(--benar); }
.t-menengah { color: #f59e0b; border-color: #f59e0b; }
.t-pendalaman { color: var(--salah); border-color: var(--salah); }
.contoh { background: var(--kartu); border: 1px dashed var(--garis); border-radius: 10px; padding: .7rem 1rem; }
.kotak { background: var(--kartu); border: 1px solid var(--garis); border-radius: 14px; padding: 1rem 1.2rem; margin: 1.2rem 0; }
.lanjut { border-top: 1px solid var(--garis); margin-top: 1.5rem; padding-top: .5rem; }

/* ---- form dan tools ---- */
.form { display: flex; flex-direction: column; gap: .6rem; margin: 1rem 0; }
.form label { font-weight: 700; }
input[type=text], input[type=password], .form input, .form textarea, .baris-form input {
  background: var(--kartu); color: var(--teks); border: 1px solid var(--garis); border-radius: 10px; padding: .6rem .8rem;
  font: inherit; width: 100%; }
.form textarea { resize: vertical; }
.form .btn { align-self: flex-start; }
.baris-form { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; margin: .6rem 0; }
.baris-form input { flex: 1; min-width: 200px; width: auto; }
.sr { position: absolute; left: -9999px; }
button.btn { cursor: pointer; font: inherit; }
button.btn:disabled { opacity: .5; cursor: not-allowed; }
.pesan.galat { border-color: var(--salah); }
.stat { list-style: none; padding: 0 !important; }
.stat li { display: flex; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--garis); padding: .4rem 0; }
.penilaian { font-weight: 800; font-size: 1.2rem; margin: .2rem 0 .6rem; }
.lv-tinggi { color: var(--salah); } .lv-sedang { color: #f59e0b; } .lv-rendah { color: var(--benar); }
.pratinjau { background: var(--bg); border: 1px solid var(--garis); border-radius: 10px; padding: .8rem 1rem; white-space: pre-wrap; word-break: break-word; }
mark { background: #fde68a; color: #422006; border-radius: 4px; padding: 0 3px; }

/* ---- gambar diagram materi ---- */
figure.gambar { margin: 1.2rem 0; background: var(--kartu); border: 1px solid var(--garis); border-radius: 14px; padding: .8rem .8rem .5rem; }
figure.gambar svg { width: 100%; height: auto; display: block; color: var(--teks); }
figure.gambar figcaption { color: var(--redup); font-size: .9rem; text-align: center; margin-top: .4rem; }
.diagram .alir { stroke-dasharray: 7 6; }
@media (prefers-reduced-motion: no-preference) {
  .diagram .alir { animation: alir 1.1s linear infinite; }
  @keyframes alir { to { stroke-dashoffset: -26; } }
}
.apikey ol { padding-left: 1.2rem; }
.apikey li { margin: .3rem 0; }
.lanjut .aksi { align-items: center; }