/* Reset ringan, tipografi, dan komponen umum yang dipakai lintas halaman. */

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-utama);
  font-size: 16px;
  line-height: 1.55;
  color: var(--teks);
  background: var(--putih);
}

h1,
h2,
h3 {
  font-weight: 700;
  line-height: 1.25;
  margin: 0;
}

p {
  margin: 0;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

button {
  font: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--oranye);
  outline-offset: 2px;
  border-radius: 4px;
}

.wadah {
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: 20px;
}

/* ---------- Header aplikasi ---------- */

.kepala-app {
  background: var(--oranye);
  color: #ffffff;
  padding-block: 28px 30px;
}

.kepala-app h1 {
  font-size: 1.7rem;
}

.kepala-app .subjudul {
  margin-top: 6px;
  font-size: 0.95rem;
  opacity: 0.92;
  max-width: 46em;
}

/* ---------- Tombol ---------- */

.tombol {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-tombol);
  background: var(--oranye);
  color: #ffffff;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transisi);
}

.tombol:hover {
  background: var(--oranye-hover);
}

.tombol-sekunder {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 20px;
  border: 1px solid var(--abu-garis);
  border-radius: var(--radius-tombol);
  background: var(--putih-kartu);
  color: var(--teks);
  font-weight: 600;
  transition: background var(--transisi), border-color var(--transisi);
}

.tombol-sekunder:hover {
  background: var(--abu-muda);
}

/* ---------- Kartu umum ---------- */

.kartu {
  background: var(--putih-kartu);
  border: 1px solid var(--abu-garis);
  border-radius: var(--radius-kartu);
  box-shadow: var(--bayangan-tipis);
}

/* ---------- Beranda: kisi kartu lab ---------- */

.judul-modul {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 1.15rem;
  margin: 36px 0 16px;
}

.progres-modul {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--teks-lembut);
}

.progres-modul.tuntas {
  color: var(--hijau);
}

.kisi-kartu {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}

.kartu-lab {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--putih-kartu);
  border: 1px solid var(--abu-garis);
  border-radius: var(--radius-kartu);
  overflow: hidden;
  text-decoration: none;
  transition: transform var(--transisi), border-color var(--transisi);
}

a.kartu-lab:hover {
  transform: translateY(-2px);
  border-color: var(--oranye);
}

.kartu-lab.nonaktif {
  opacity: 0.55;
}

.gambar-kartu {
  position: relative;
  display: block;
  background: var(--abu-muda);
  aspect-ratio: 4 / 3;
}

.gambar-kartu img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 10px;
}

.nama-kartu {
  display: block;
  padding: 10px 14px 12px;
  font-weight: 600;
  font-size: 0.95rem;
}

.nomor-kartu {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--teks-lembut);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.lencana-centang {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--hijau);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 700;
}

.chip-segera {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--abu-muda);
  border: 1px solid var(--abu-garis);
  color: var(--teks-lembut);
  font-size: 0.75rem;
  font-weight: 600;
}

/* ---------- Kaki halaman ---------- */

.kaki-app {
  margin-top: 48px;
  padding-block: 28px;
  border-top: 1px solid var(--abu-garis);
  color: var(--teks-lembut);
  font-size: 0.85rem;
}

.kaki-app .wadah {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* ---------- Saklar toggle ---------- */

.saklar {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  cursor: pointer;
  font-weight: 600;
}

.saklar input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.saklar .lintas {
  position: relative;
  width: 56px;
  height: 32px;
  flex: none;
  border-radius: 999px;
  background: var(--abu-garis);
  transition: background var(--transisi);
}

.saklar .lintas::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--putih-kartu);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
  transition: transform var(--transisi);
}

.saklar input:checked + .lintas {
  background: var(--oranye);
}

.saklar input:checked + .lintas::after {
  transform: translateX(24px);
}

.saklar input:focus-visible + .lintas {
  outline: 2px solid var(--oranye);
  outline-offset: 2px;
}

/* ---------- Slider (dipakai lab-lab berikutnya) ---------- */

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 32px;
  background: transparent;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 999px;
  background: var(--abu-muda);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  margin-top: -8px;
  border-radius: 50%;
  border: none;
  background: var(--oranye);
}

input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 999px;
  background: var(--abu-muda);
}

input[type="range"]::-moz-range-progress {
  height: 6px;
  border-radius: 999px;
  background: var(--oranye);
}

input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: none;
  background: var(--oranye);
}

/* ---------- Utilitas ---------- */

/* atribut hidden harus selalu menang atas display kelas mana pun */
[hidden] {
  display: none !important;
}

.hanya-pembaca {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}