/* LaguQA — sistem rupa Material 3 dengan warna bibit nila dan kunyit.
   Ditulis tangan, tanpa kerangka kerja, supaya berkasnya kecil dan setiap
   nilainya bisa ditelusuri. Peran warna memakai nama Material 3 apa adanya
   agar mudah dicocokkan dengan dokumentasi resminya. */

/* ---------------------------------------------------------------- token */

:root {
  color-scheme: light dark;

  /* Nila. Bibit #2A3A8F, diambil dari warna wedelan pada batik pesisir. */
  --primary: #3d4ea5;
  --on-primary: #ffffff;
  --primary-container: #dee0ff;
  --on-primary-container: #00105c;

  /* Kunyit. Dipakai untuk garis kendali dan penanda, bukan untuk hiasan. */
  --tertiary: #7a5900;
  --on-tertiary: #ffffff;
  --tertiary-container: #ffdf9a;
  --on-tertiary-container: #261a00;

  /* Terakota. Menandai angka yang berada di bawah garis kendali. */
  --error: #9a3412;
  --on-error: #ffffff;
  --error-container: #ffdbcb;
  --on-error-container: #380d00;

  --surface: #fdfbf5;
  --on-surface: #1b1b21;
  --on-surface-variant: #46464f;
  --outline: #777680;
  --outline-variant: #c9c6d0;

  --surface-container-lowest: #ffffff;
  --surface-container-low: #f8f5ef;
  --surface-container: #f2efe9;
  --surface-container-high: #ece9e3;
  --surface-container-highest: #e6e3dc;

  --inverse-surface: #303036;
  --inverse-on-surface: #f3eff7;

  /* Bentuk. Skala sudut Material 3. */
  --sudut-xs: 4px;
  --sudut-sm: 8px;
  --sudut-md: 12px;
  --sudut-lg: 16px;
  --sudut-xl: 28px;
  --sudut-penuh: 999px;

  --huruf-tampil: "Fraunces", "Iowan Old Style", Georgia, serif;
  --huruf-badan: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --huruf-mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", monospace;

  --ruang-1: 4px;
  --ruang-2: 8px;
  --ruang-3: 12px;
  --ruang-4: 16px;
  --ruang-6: 24px;
  --ruang-8: 32px;
  --ruang-12: 48px;
  --ruang-16: 64px;
  --ruang-24: 96px;

  --lebar: 1140px;
  --gerak: cubic-bezier(0.2, 0, 0, 1);

  --kawung-alfa: 0.17;
  --kawung: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='88' height='88' viewBox='0 0 88 88'%3E%3Cg fill='none' stroke='%233d4ea5' stroke-width='1.3'%3E%3Ccircle cx='0' cy='0' r='37'/%3E%3Ccircle cx='88' cy='0' r='37'/%3E%3Ccircle cx='0' cy='88' r='37'/%3E%3Ccircle cx='88' cy='88' r='37'/%3E%3Ccircle cx='44' cy='44' r='37'/%3E%3Ccircle cx='0' cy='0' r='22'/%3E%3Ccircle cx='88' cy='0' r='22'/%3E%3Ccircle cx='0' cy='88' r='22'/%3E%3Ccircle cx='88' cy='88' r='22'/%3E%3Ccircle cx='44' cy='44' r='22'/%3E%3C/g%3E%3Cg fill='%233d4ea5'%3E%3Ccircle cx='22' cy='22' r='2.4'/%3E%3Ccircle cx='66' cy='22' r='2.4'/%3E%3Ccircle cx='22' cy='66' r='2.4'/%3E%3Ccircle cx='66' cy='66' r='2.4'/%3E%3C/g%3E%3C/svg%3E");
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary: #bbc3ff;
    --on-primary: #0b1b6e;
    --primary-container: #24338c;
    --on-primary-container: #dee0ff;

    --tertiary: #f2c14e;
    --on-tertiary: #3f2e00;
    --tertiary-container: #5b4300;
    --on-tertiary-container: #ffdf9a;

    --error: #ffb59b;
    --on-error: #5c1900;
    --error-container: #7c2707;
    --on-error-container: #ffdbcb;

    --surface: #121218;
    --on-surface: #e5e1e9;
    --on-surface-variant: #c7c5d0;
    --outline: #918f9a;
    --outline-variant: #46464f;

    --surface-container-lowest: #0d0d12;
    --surface-container-low: #1a1a20;
    --surface-container: #1e1e25;
    --surface-container-high: #292930;
    --surface-container-highest: #34343b;

    --inverse-surface: #e5e1e9;
    --inverse-on-surface: #303036;

    --kawung-alfa: 0.13;
    --kawung: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='88' height='88' viewBox='0 0 88 88'%3E%3Cg fill='none' stroke='%23bbc3ff' stroke-width='1.3'%3E%3Ccircle cx='0' cy='0' r='37'/%3E%3Ccircle cx='88' cy='0' r='37'/%3E%3Ccircle cx='0' cy='88' r='37'/%3E%3Ccircle cx='88' cy='88' r='37'/%3E%3Ccircle cx='44' cy='44' r='37'/%3E%3Ccircle cx='0' cy='0' r='22'/%3E%3Ccircle cx='88' cy='0' r='22'/%3E%3Ccircle cx='0' cy='88' r='22'/%3E%3Ccircle cx='88' cy='88' r='22'/%3E%3Ccircle cx='44' cy='44' r='22'/%3E%3C/g%3E%3Cg fill='%23bbc3ff'%3E%3Ccircle cx='22' cy='22' r='2.4'/%3E%3Ccircle cx='66' cy='22' r='2.4'/%3E%3Ccircle cx='22' cy='66' r='2.4'/%3E%3Ccircle cx='66' cy='66' r='2.4'/%3E%3C/g%3E%3C/svg%3E");
  }
}

/* ---------------------------------------------------------------- dasar */

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--huruf-badan);
  font-size: 1rem;
  line-height: 1.65;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--huruf-tampil);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 var(--ruang-4);
  font-variation-settings: "SOFT" 20, "WONK" 1;
}

h1 { font-size: clamp(2.75rem, 7vw, 4.5rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.85rem, 4vw, 2.6rem); }
h3 { font-size: clamp(1.25rem, 2.4vw, 1.6rem); }
h4 { font-size: 1.05rem; font-family: var(--huruf-badan); font-weight: 600; }

p { margin: 0 0 var(--ruang-4); max-width: 68ch; }

a { color: var(--primary); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

code, pre, .mono { font-family: var(--huruf-mono); font-size: 0.875em; }

:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--sudut-xs);
}

::selection { background: var(--tertiary-container); color: var(--on-tertiary-container); }

.lewati {
  position: absolute;
  left: var(--ruang-4);
  top: -60px;
  z-index: 100;
  padding: var(--ruang-3) var(--ruang-6);
  background: var(--primary);
  color: var(--on-primary);
  border-radius: var(--sudut-penuh);
  transition: top 0.2s var(--gerak);
}
.lewati:focus { top: var(--ruang-4); }

.tersembunyi {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip-path: inset(50%); white-space: nowrap;
}

/* ------------------------------------------------------------- kerangka */

.bungkus {
  width: 100%;
  max-width: var(--lebar);
  margin-inline: auto;
  padding-inline: var(--ruang-6);
}

section { padding-block: var(--ruang-24); }
section + section { padding-top: 0; }

.kepala-bagian { max-width: 62ch; margin-bottom: var(--ruang-12); }

.mata {
  font-family: var(--huruf-badan);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
  margin: 0 0 var(--ruang-3);
  display: flex;
  align-items: center;
  gap: var(--ruang-3);
}
.mata::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--outline-variant);
}

.pengantar { font-size: 1.125rem; color: var(--on-surface-variant); }

/* -------------------------------------------------------------- bilah atas */

.bilah {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  transition: background 0.25s var(--gerak), border-color 0.25s var(--gerak);
}
.bilah[data-gulir="ya"] {
  background: var(--surface-container);
  border-bottom-color: var(--outline-variant);
}

.bilah-isi {
  display: flex;
  align-items: center;
  gap: var(--ruang-6);
  height: 68px;
}

.merek {
  display: inline-flex;
  align-items: center;
  gap: var(--ruang-3);
  font-family: var(--huruf-tampil);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--on-surface);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.merek svg { display: block; }

.bilah nav {
  display: flex;
  gap: var(--ruang-1);
  margin-left: auto;
}
.bilah nav a {
  padding: var(--ruang-2) var(--ruang-4);
  border-radius: var(--sudut-penuh);
  font-size: 0.9375rem;
  color: var(--on-surface-variant);
  text-decoration: none;
  transition: background 0.18s var(--gerak), color 0.18s var(--gerak);
}
.bilah nav a:hover { background: color-mix(in srgb, var(--on-surface) 8%, transparent); color: var(--on-surface); }

.bahasa {
  display: inline-flex;
  align-items: center;
  gap: var(--ruang-2);
  padding: var(--ruang-2) var(--ruang-4);
  border: 1px solid var(--outline);
  border-radius: var(--sudut-penuh);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.18s var(--gerak);
}
.bahasa:hover { background: color-mix(in srgb, var(--on-surface) 8%, transparent); }

.sakelar-menu {
  display: none;
  margin-left: auto;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  background: none;
  border: none;
  border-radius: var(--sudut-penuh);
  color: var(--on-surface);
  cursor: pointer;
}
.sakelar-menu:hover { background: color-mix(in srgb, var(--on-surface) 8%, transparent); }

/* ---------------------------------------------------------------- tombol */

.tombol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ruang-2);
  min-height: 44px;
  padding: 10px var(--ruang-6);
  border: none;
  border-radius: var(--sudut-penuh);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.18s var(--gerak), box-shadow 0.18s var(--gerak);
}
.tombol-isi { background: var(--primary); color: var(--on-primary); }
.tombol-isi:hover { box-shadow: 0 1px 3px rgba(0,0,0,0.3), 0 4px 8px rgba(0,0,0,0.15); }
.tombol-nada { background: var(--primary-container); color: var(--on-primary-container); }
.tombol-nada:hover { background: color-mix(in srgb, var(--primary-container) 92%, var(--on-primary-container)); }
.tombol-garis { border: 1px solid var(--outline); color: var(--primary); background: none; }
.tombol-garis:hover { background: color-mix(in srgb, var(--primary) 8%, transparent); }
.tombol-teks { color: var(--primary); background: none; padding-inline: var(--ruang-4); }
.tombol-teks:hover { background: color-mix(in srgb, var(--primary) 8%, transparent); }
.tombol[aria-disabled="true"] {
  background: color-mix(in srgb, var(--on-surface) 12%, transparent);
  color: color-mix(in srgb, var(--on-surface) 38%, transparent);
  pointer-events: none;
}

/* ------------------------------------------------------------------ hero */

.hero {
  position: relative;
  padding-block: var(--ruang-24) var(--ruang-16);
  overflow: hidden;
}

/* Kawung: empat elips berselang arah dalam kisi, motif batik yang paling
   sering dipakai untuk latar karena tidak menarik perhatian. Digambar
   sebagai mask supaya warnanya ikut tema, bukan dipatok di dalam SVG. */
.hero::before {
  content: "";
  position: absolute;
  inset: -40px 0 0;
  background-image: var(--kawung);
  background-size: 88px 88px;
  background-position: center top;
  opacity: var(--kawung-alfa);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 52%, transparent 92%);
  mask-image: linear-gradient(180deg, #000 0%, #000 52%, transparent 92%);
  pointer-events: none;
}
.hero > * { position: relative; z-index: 1; }

footer { position: relative; overflow: hidden; }
footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--kawung);
  background-size: 88px 88px;
  opacity: calc(var(--kawung-alfa) * 0.55);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 70%);
  mask-image: linear-gradient(180deg, transparent 0%, #000 70%);
  pointer-events: none;
}
footer > * { position: relative; z-index: 1; }

.hero-atur {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: var(--ruang-16);
  align-items: center;
}

.hero h1 { margin-bottom: var(--ruang-4); }
.hero h1 .aksen { color: var(--primary); }

.hero-tagline {
  font-family: var(--huruf-tampil);
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  line-height: 1.35;
  color: var(--on-surface-variant);
  margin-bottom: var(--ruang-6);
  max-width: 30ch;
}

.hero-lede { font-size: 1.05rem; margin-bottom: var(--ruang-8); }

.hero-tombol { display: flex; flex-wrap: wrap; gap: var(--ruang-3); margin-bottom: var(--ruang-8); }

.tanda-sekolah {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ruang-2) var(--ruang-4);
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
  padding-top: var(--ruang-6);
  border-top: 1px solid var(--outline-variant);
  margin: 0;
}
.tanda-sekolah span { display: inline-flex; gap: 6px; }
.tanda-sekolah b { font-weight: 600; color: var(--on-surface); }

/* --------------------------------------------------------- kartu temuan */

.temuan {
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--sudut-xl);
  padding: var(--ruang-8);
}
.temuan h2 {
  font-size: 1.35rem;
  line-height: 1.3;
  margin-bottom: var(--ruang-6);
}

.pasang-angka { display: flex; align-items: baseline; gap: var(--ruang-3); margin-bottom: var(--ruang-2); }
.angka-besar {
  font-family: var(--huruf-tampil);
  font-size: clamp(2.6rem, 6vw, 3.6rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.angka-besar.kendali { color: var(--tertiary); }
.angka-besar.bawah { color: var(--error); }
.angka-label { font-size: 0.875rem; color: var(--on-surface-variant); }
.pasang-angka + .pasang-angka { margin-top: var(--ruang-6); }

.temuan-catatan {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  margin: var(--ruang-6) 0 0;
  padding-top: var(--ruang-6);
  border-top: 1px solid var(--outline-variant);
}

/* ------------------------------------------------------------ angka baris */

.angka-baris {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--ruang-3);
}
.angka-kotak {
  background: var(--surface-container-low);
  border-radius: var(--sudut-lg);
  padding: var(--ruang-6);
}
.angka-kotak dt {
  font-family: var(--huruf-tampil);
  font-size: 2.25rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--primary);
  margin-bottom: var(--ruang-2);
}
.angka-kotak dd { margin: 0; font-size: 0.875rem; color: var(--on-surface-variant); }
.angka-kotak dd b { display: block; font-weight: 600; color: var(--on-surface); font-size: 0.9375rem; }

/* --------------------------------------------------------------- kolom 2 */

.dua-kolom {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--ruang-16);
  align-items: start;
}
.dua-kolom.rapat { gap: var(--ruang-8); }

/* ---------------------------------------------------------------- daftar */

.daftar-nomor { counter-reset: butir; list-style: none; margin: 0; padding: 0; }
.daftar-nomor > li {
  counter-increment: butir;
  position: relative;
  padding-left: var(--ruang-12);
  margin-bottom: var(--ruang-6);
  max-width: 66ch;
}
.daftar-nomor > li::before {
  content: counter(butir);
  position: absolute;
  left: 0;
  top: 1px;
  width: 32px; height: 32px;
  display: grid; place-items: center;
  border-radius: var(--sudut-penuh);
  background: var(--primary-container);
  color: var(--on-primary-container);
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: var(--huruf-badan);
}
.daftar-nomor h4 { margin-bottom: var(--ruang-1); }
.daftar-nomor p { margin: 0; color: var(--on-surface-variant); }

/* ----------------------------------------------------------------- grafik */

.grafik {
  background: var(--surface-container-low);
  border-radius: var(--sudut-xl);
  padding: var(--ruang-8);
}
.grafik-judul { font-size: 1.05rem; font-weight: 600; margin: 0 0 var(--ruang-2); font-family: var(--huruf-badan); }
.grafik-sub { font-size: 0.875rem; color: var(--on-surface-variant); margin: 0 0 var(--ruang-8); max-width: 60ch; }

.batang-daftar { position: relative; display: grid; gap: 3px; }

/* Garis kendali membentang menembus semua batang. Posisinya dipasang lewat
   sifat --x oleh pembangkit, dihitung dari skala yang sama dengan batangnya. */
.garis-kendali {
  position: absolute;
  top: -6px; bottom: 22px;
  left: calc(var(--label-lebar) + var(--ruang-3) +
             (100% - var(--label-lebar) - var(--ruang-3) - var(--nilai-lebar)) * var(--x));
  width: 2px;
  background: var(--tertiary);
  border-radius: 2px;
  pointer-events: none;
  z-index: 2;
}
.garis-kendali::after {
  content: attr(data-teks);
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--on-tertiary-container);
  background: var(--tertiary-container);
  padding: 2px 8px;
  border-radius: var(--sudut-penuh);
}

.batang {
  --label-lebar: 190px;
  --nilai-lebar: 46px;
  display: grid;
  grid-template-columns: var(--label-lebar) minmax(0, 1fr);
  align-items: center;
  gap: var(--ruang-3);
  padding: 3px 0;
  border-radius: var(--sudut-sm);
}
.batang-daftar { --label-lebar: 190px; --nilai-lebar: 46px; }
.batang:hover { background: color-mix(in srgb, var(--on-surface) 5%, transparent); }

.batang-nama {
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.batang.tebal .batang-nama { color: var(--on-surface); font-weight: 600; }

.batang-jalur { position: relative; padding-right: var(--nilai-lebar); display: flex; align-items: center; }
.batang-isi {
  height: 20px;
  border-radius: var(--sudut-xs);
  background: var(--outline);
  width: 0;
  transition: width 0.9s var(--gerak);
}
.terlihat .batang-isi { width: var(--w); }
.batang-isi.dilatih { background: var(--primary); }
.batang-isi.dasar { background: color-mix(in srgb, var(--primary) 45%, var(--outline-variant)); }
.batang-isi.bawah { background: var(--error); }
.batang-isi.kendali { background: var(--tertiary); }
.batang-isi.kosong { background: var(--outline-variant); }

.batang-nilai {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--on-surface-variant);
}
.batang.tebal .batang-nilai { color: var(--on-surface); }

.kunci {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ruang-2) var(--ruang-6);
  margin-top: var(--ruang-8);
  padding-top: var(--ruang-6);
  border-top: 1px solid var(--outline-variant);
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
}
.kunci span { display: inline-flex; align-items: center; gap: var(--ruang-2); }
.kunci i { width: 14px; height: 14px; border-radius: 3px; display: block; }

/* ------------------------------------------------------------- tabel */

.tabel-bungkus { overflow-x: auto; border-radius: var(--sudut-lg); }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  min-width: 520px;
}
table.data caption {
  text-align: left;
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  padding-bottom: var(--ruang-4);
}
table.data th, table.data td {
  padding: var(--ruang-3) var(--ruang-4);
  text-align: left;
  border-bottom: 1px solid var(--outline-variant);
}
table.data thead th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--on-surface-variant);
  font-weight: 600;
}
table.data td.angka, table.data th.angka { text-align: right; font-variant-numeric: tabular-nums; }
table.data tbody tr:hover { background: color-mix(in srgb, var(--on-surface) 4%, transparent); }
table.data .sel-batang { position: relative; }
table.data .sel-batang i {
  position: absolute;
  left: var(--ruang-4);
  bottom: 6px;
  height: 3px;
  border-radius: 2px;
  background: var(--primary);
  width: var(--w);
}

/* ---------------------------------------------------------------- keping */

.keping-baris {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ruang-2);
  margin-bottom: var(--ruang-6);
}
.keping {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px var(--ruang-4);
  border: 1px solid var(--outline);
  border-radius: var(--sudut-sm);
  background: none;
  color: var(--on-surface-variant);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.18s var(--gerak), border-color 0.18s var(--gerak), color 0.18s var(--gerak);
}
.keping:hover { background: color-mix(in srgb, var(--on-surface) 8%, transparent); }
.keping[aria-selected="true"] {
  background: var(--primary-container);
  border-color: transparent;
  color: var(--on-primary-container);
  font-weight: 600;
}

/* ------------------------------------------------------------------ soal */

.soal {
  background: var(--surface-container-low);
  border-radius: var(--sudut-xl);
  padding: var(--ruang-8);
}
.soal-tingkat {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-tertiary-container);
  background: var(--tertiary-container);
  padding: 3px 10px;
  border-radius: var(--sudut-penuh);
  margin-bottom: var(--ruang-4);
}
.soal-tanya {
  font-family: var(--huruf-tampil);
  font-size: 1.2rem;
  line-height: 1.4;
  margin: 0 0 var(--ruang-6);
  white-space: pre-wrap;
}
.soal-tanya .notasi {
  display: block;
  font-family: var(--huruf-mono);
  font-size: 0.9375rem;
  line-height: 1.9;
  background: var(--surface-container-high);
  border-radius: var(--sudut-md);
  padding: var(--ruang-4);
  margin-top: var(--ruang-4);
  overflow-x: auto;
  white-space: pre;
}
.opsi-daftar { list-style: none; margin: 0 0 var(--ruang-6); padding: 0; display: grid; gap: var(--ruang-2); }
.opsi {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: var(--ruang-3);
  align-items: start;
  padding: var(--ruang-3) var(--ruang-4);
  border: 1px solid var(--outline-variant);
  border-radius: var(--sudut-md);
  font-size: 0.9375rem;
  transition: background 0.2s var(--gerak), border-color 0.2s var(--gerak);
}
.opsi b {
  width: 28px; height: 28px;
  display: grid; place-items: center;
  border-radius: var(--sudut-penuh);
  background: var(--surface-container-high);
  font-size: 0.8125rem;
  font-weight: 600;
}
.soal.terbuka .opsi.benar {
  border-color: var(--primary);
  background: var(--primary-container);
  color: var(--on-primary-container);
}
.soal.terbuka .opsi.benar b { background: var(--primary); color: var(--on-primary); }
.soal:not(.terbuka) .opsi.benar b::after { content: none; }

/* --------------------------------------------------------------- notasi */

.notasi-atur { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: var(--ruang-8); align-items: start; }

.pilih-lagu {
  width: 100%;
  min-height: 48px;
  padding: var(--ruang-3) var(--ruang-4);
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--on-surface);
  background: var(--surface-container-high);
  border: 1px solid var(--outline);
  border-radius: var(--sudut-sm);
  margin-bottom: var(--ruang-6);
}

.lagu-fakta { margin: 0 0 var(--ruang-6); display: grid; gap: var(--ruang-3); }
.lagu-fakta > div { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: var(--ruang-3); font-size: 0.875rem; }
.lagu-fakta dt { color: var(--on-surface-variant); }
.lagu-fakta dd { margin: 0; font-weight: 500; }

.jianpu {
  font-family: var(--huruf-mono);
  font-size: 0.8125rem;
  line-height: 2;
  background: var(--surface-container-high);
  border-radius: var(--sudut-md);
  padding: var(--ruang-4);
  overflow-x: auto;
  white-space: pre-wrap;
  margin: 0;
}

.kertas {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--sudut-lg);
  padding: var(--ruang-4);
  min-height: 260px;
  overflow-x: auto;
}
/* abcjs menggambar hitam pekat. Diwarnai ulang agar ikut tema gelap. */
.kertas svg path, .kertas svg text, .kertas svg tspan { fill: var(--on-surface); }
.kertas svg path[stroke], .kertas svg line { stroke: var(--on-surface); }
.kertas .abcjs-highlight { fill: var(--primary) !important; }
.kertas .abcjs-cursor { stroke: var(--primary); stroke-width: 2; }
.pemutar { margin-top: var(--ruang-4); }
.pemutar .abcjs-inline-audio { border-radius: var(--sudut-penuh); background: var(--surface-container-high); }
.galat-audio { font-size: 0.875rem; color: var(--on-surface-variant); margin: var(--ruang-4) 0 0; }

/* --------------------------------------------------------------- sumber */

.kartu-baris { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--ruang-4); }

.kartu {
  display: flex;
  flex-direction: column;
  background: var(--surface-container-low);
  border-radius: var(--sudut-lg);
  padding: var(--ruang-6);
  text-decoration: none;
  color: inherit;
  border: 1px solid transparent;
  transition: background 0.2s var(--gerak), border-color 0.2s var(--gerak), transform 0.2s var(--gerak);
}
a.kartu:hover { background: var(--surface-container); border-color: var(--outline-variant); transform: translateY(-2px); }
.kartu-ikon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: var(--sudut-md);
  background: var(--primary-container);
  color: var(--on-primary-container);
  margin-bottom: var(--ruang-4);
}
.kartu h3 { font-size: 1.05rem; font-family: var(--huruf-badan); font-weight: 600; margin-bottom: var(--ruang-2); }
.kartu p { font-size: 0.875rem; color: var(--on-surface-variant); margin: 0 0 var(--ruang-4); }
.kartu .aksi { margin-top: auto; font-size: 0.875rem; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.kartu.mati { opacity: 0.6; }
.kartu.mati .kartu-ikon { background: var(--surface-container-high); color: var(--on-surface-variant); }
.kartu.mati .aksi { color: var(--on-surface-variant); }

/* --------------------------------------------------------------- sitasi */

.kode-kotak { position: relative; }
.kode-kotak pre {
  margin: 0;
  background: var(--surface-container-high);
  border-radius: var(--sudut-lg);
  padding: var(--ruang-6);
  padding-right: var(--ruang-16);
  overflow-x: auto;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--on-surface);
}
.salin {
  position: absolute;
  top: var(--ruang-3);
  right: var(--ruang-3);
  min-height: 36px;
  padding: 6px var(--ruang-4);
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--sudut-penuh);
  background: var(--primary-container);
  color: var(--on-primary-container);
  cursor: pointer;
}
.salin:hover { background: color-mix(in srgb, var(--primary-container) 90%, var(--on-primary-container)); }

/* ---------------------------------------------------------------- catatan */

.catatan {
  background: var(--surface-container-low);
  border-left: 3px solid var(--tertiary);
  border-radius: 0 var(--sudut-md) var(--sudut-md) 0;
  padding: var(--ruang-6);
  font-size: 0.9375rem;
}
.catatan p:last-child { margin-bottom: 0; }
.catatan strong { color: var(--on-surface); }

/* ------------------------------------------------------------------ kaki */

footer {
  background: var(--surface-container-low);
  border-top: 1px solid var(--outline-variant);
  padding-block: var(--ruang-16) var(--ruang-8);
  margin-top: var(--ruang-24);
}
.kaki-atur { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: var(--ruang-8); margin-bottom: var(--ruang-12); }
.kaki-atur h4 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--on-surface-variant); margin-bottom: var(--ruang-4); }
.kaki-atur ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--ruang-2); font-size: 0.875rem; }
.kaki-atur a { color: var(--on-surface-variant); text-decoration: none; }
.kaki-atur a:hover { color: var(--primary); text-decoration: underline; }
.kaki-bawah {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ruang-2) var(--ruang-6);
  justify-content: space-between;
  padding-top: var(--ruang-6);
  border-top: 1px solid var(--outline-variant);
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
}
.kaki-bawah p { margin: 0; max-width: none; }

/* --------------------------------------------------------------- muncul */

.muncul { opacity: 0; transform: translateY(12px); transition: opacity 0.55s var(--gerak), transform 0.55s var(--gerak); }
.muncul.terlihat { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .muncul { opacity: 1; transform: none; }
  .terlihat .batang-isi, .batang-isi { transition: none; }
}

/* ------------------------------------------------------------------ layar */

@media (max-width: 1000px) {
  .hero-atur, .dua-kolom, .notasi-atur { grid-template-columns: 1fr; gap: var(--ruang-12); }
  .angka-baris { grid-template-columns: repeat(2, 1fr); }
  .kaki-atur { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  section { padding-block: var(--ruang-16); }
  .bungkus { padding-inline: var(--ruang-4); }
  .bilah nav {
    display: none;
    position: absolute;
    top: 68px; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    padding: var(--ruang-2);
    background: var(--surface-container);
    border-bottom: 1px solid var(--outline-variant);
  }
  .bilah nav[data-buka="ya"] { display: flex; }
  .bilah nav a { padding: var(--ruang-3) var(--ruang-4); border-radius: var(--sudut-md); }
  .sakelar-menu { display: flex; }
  .bahasa { margin-left: var(--ruang-2); }
  .batang, .batang-daftar { --label-lebar: 118px; --nilai-lebar: 40px; }
  .batang-nama { font-size: 0.75rem; }
  .grafik, .temuan, .soal { padding: var(--ruang-6); }
  .kaki-atur { grid-template-columns: 1fr; gap: var(--ruang-6); }
  .angka-baris { grid-template-columns: 1fr 1fr; }
  .hero { padding-block: var(--ruang-12) var(--ruang-8); }
}

@media (max-width: 420px) {
  .angka-baris { grid-template-columns: 1fr; }
}

@media print {
  .bilah, .hero::before, .hero::after, .pemutar { display: none; }
  body { background: #fff; color: #000; }
}