:root {
  --bg: #f6f7f5;
  --kartu: #ffffff;
  --tepi: #e2e5e0;
  --teks: #1c2420;
  --redup: #6b7770;
  --aksen: #0f766e;
  --aksen-lembut: #d8efe9;
  --hijau: #15803d;
  --merah: #b91c1c;
  --radius: 14px;
  --bayang: 0 1px 2px rgba(20, 35, 30, .06), 0 4px 12px rgba(20, 35, 30, .05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101513;
    --kartu: #1a211e;
    --tepi: #2b3531;
    --teks: #e8edea;
    --redup: #93a29b;
    --aksen: #2dd4bf;
    --aksen-lembut: #17352f;
    --hijau: #4ade80;
    --merah: #f87171;
    --bayang: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 14px rgba(0, 0, 0, .25);
  }
}

* { box-sizing: border-box; }

/* Wajib: .gerbang memakai display:grid yang specificity-nya mengalahkan
   [hidden] bawaan browser, jadi kartu login tidak mau hilang tanpa ini. */
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--teks);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; font-weight: 650; letter-spacing: -.01em; }
h2 { font-size: 1rem; margin: 26px 0 10px; }
h2 small { font-weight: 400; color: var(--redup); margin-left: 6px; }
h3 { font-size: .95rem; }

/* ------------------------------------------------------------- gerbang */

.gerbang {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: radial-gradient(1200px 600px at 50% -10%, var(--aksen-lembut), var(--bg) 60%);
}

.gerbang-kartu {
  background: var(--kartu);
  border: 1px solid var(--tepi);
  border-radius: 20px;
  box-shadow: var(--bayang);
  padding: 40px 32px;
  text-align: center;
  max-width: 360px;
  width: 100%;
}

.gerbang-kartu h1 { font-size: 1.9rem; margin-top: 12px; }
.gerbang-kartu .sub { color: var(--redup); margin: 6px 0 26px; font-size: .92rem; }

.logo {
  font-size: 2.4rem;
  line-height: 1;
  color: var(--aksen);
}
.logo.kecil { font-size: 1.3rem; }

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

.atas {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  background: var(--kartu);
  border-bottom: 1px solid var(--tepi);
  position: sticky;
  top: 0;
  z-index: 5;
}

.merek { display: flex; align-items: center; gap: 8px; font-size: 1.05rem; }
.pengguna { display: flex; align-items: center; gap: 10px; font-size: .82rem; color: var(--redup); }
.pengguna span { max-width: 42vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.tab {
  display: flex;
  gap: 4px;
  padding: 10px 14px 0;
  background: var(--kartu);
  border-bottom: 1px solid var(--tepi);
  position: sticky;
  top: 57px;
  z-index: 4;
  overflow-x: auto;
}

.tab-btn {
  border: 0;
  background: none;
  color: var(--redup);
  font: inherit;
  font-size: .9rem;
  padding: 8px 12px 11px;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}
.tab-btn.aktif { color: var(--aksen); border-bottom-color: var(--aksen); font-weight: 600; }

main { max-width: 780px; margin: 0 auto; padding: 18px 16px 60px; }
.panel { display: none; }
.panel.aktif { display: block; }

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

.kartu-baris {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-bottom: 10px;
}

.kartu {
  background: var(--kartu);
  border: 1px solid var(--tepi);
  border-radius: var(--radius);
  box-shadow: var(--bayang);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.kartu.sorot { background: var(--aksen-lembut); border-color: transparent; }

.label { font-size: .78rem; color: var(--redup); }
.nilai { font-size: 1.35rem; font-weight: 650; letter-spacing: -.02em; }
.jejak { font-size: .76rem; color: var(--redup); }
.hijau { color: var(--hijau); }
.merah { color: var(--merah); }

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

.tombol {
  font: inherit;
  border-radius: 10px;
  border: 1px solid var(--tepi);
  background: var(--kartu);
  color: var(--teks);
  padding: 9px 14px;
  cursor: pointer;
  transition: filter .15s, opacity .15s;
}
.tombol:hover { filter: brightness(.97); }
.tombol:disabled { opacity: .55; cursor: progress; }
.tombol.utama { background: var(--aksen); border-color: var(--aksen); color: #fff; font-weight: 600; }
@media (prefers-color-scheme: dark) { .tombol.utama { color: #06211d; } }
.tombol.lebar { width: 100%; padding: 13px; font-size: 1rem; margin-top: 14px; }
.tombol.mini { padding: 6px 10px; font-size: .8rem; }

/* ------------------------------------------------------------------ form */

form label { display: flex; flex-direction: column; gap: 5px; font-size: .82rem; color: var(--redup); }

input, select {
  font: inherit;
  font-size: .95rem;
  color: var(--teks);
  background: var(--kartu);
  border: 1px solid var(--tepi);
  border-radius: 10px;
  padding: 10px 11px;
  width: 100%;
  min-width: 0;
}
input:focus, select:focus { outline: 2px solid var(--aksen); outline-offset: -1px; }

.pilih-tipe { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; margin-bottom: 16px; }
.pil {
  border: 1px solid var(--tepi);
  background: var(--kartu);
  border-radius: 10px;
  padding: 11px 8px;
  text-align: center;
  font-size: .87rem;
  cursor: pointer;
}
.pil input { display: none; }
.pil.aktif { border-color: var(--aksen); background: var(--aksen-lembut); color: var(--aksen); font-weight: 600; }

.baris-form { display: grid; grid-template-columns: 1fr 1.4fr; gap: 10px; margin-bottom: 14px; }
.baris-tunggal { margin-bottom: 14px; }

.kepala-item { display: flex; align-items: center; justify-content: space-between; margin: 6px 0 8px; }

.baris-item {
  display: grid;
  grid-template-columns: 1.5fr .8fr 1fr auto 28px;
  gap: 6px;
  align-items: center;
  margin-bottom: 8px;
}
.baris-item .subtotal { font-size: .8rem; color: var(--redup); text-align: right; white-space: nowrap; }
.hapus-baris {
  border: 0; background: none; color: var(--redup);
  font-size: 1.3rem; line-height: 1; cursor: pointer; padding: 0;
}
.hapus-baris:hover { color: var(--merah); }

.total-bar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 14px 16px;
  background: var(--kartu);
  border: 1px solid var(--tepi);
  border-radius: var(--radius);
  margin-top: 6px;
  font-size: .85rem;
  color: var(--redup);
}
.total-bar strong { font-size: 1.35rem; letter-spacing: -.02em; }

.pesan { font-size: .84rem; margin: 10px 0 0; min-height: 1.1em; }
.pesan.galat { color: var(--merah); }
.pesan.sukses { color: var(--hijau); }

/* --------------------------------------------------------------- riwayat */

.saring { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 14px; }
.saring label { display: flex; flex-direction: column; gap: 4px; font-size: .78rem; color: var(--redup); }
.saring input, .saring select { width: auto; }

.trx {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  background: var(--kartu);
  border: 1px solid var(--tepi);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 8px;
}
.trx-kiri { display: flex; gap: 10px; min-width: 0; }
.trx-kiri strong { display: block; font-size: .92rem; }
.trx-kiri .jejak { display: block; line-height: 1.45; }
.trx-kanan { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; white-space: nowrap; }
.trx-kanan strong { font-size: .95rem; }

.lencana {
  align-self: flex-start;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 4px 7px;
  border-radius: 6px;
  background: var(--aksen-lembut);
  color: var(--aksen);
}
.lencana.jual, .lencana.masuk { background: color-mix(in srgb, var(--hijau) 15%, transparent); color: var(--hijau); }
.lencana.beli, .lencana.keluar { background: color-mix(in srgb, var(--merah) 13%, transparent); color: var(--merah); }

.aksi-trx { display: flex; gap: 10px; align-items: center; }

.hapus-trx, .lihat-bukti {
  border: 0; background: none; color: var(--redup);
  font: inherit; font-size: .76rem; cursor: pointer; padding: 0; text-decoration: underline;
}
.hapus-trx:hover { color: var(--merah); }
.lihat-bukti { color: var(--aksen); }
.lihat-bukti:disabled { opacity: .5; cursor: progress; }

input[type="file"] { padding: 8px 10px; font-size: .85rem; }
input[type="file"]::file-selector-button {
  font: inherit;
  font-size: .82rem;
  margin-right: 10px;
  padding: 5px 10px;
  border: 1px solid var(--tepi);
  border-radius: 8px;
  background: var(--bg);
  color: var(--teks);
  cursor: pointer;
}

/* ------------------------------------------------------------------ stok */

.daftar-stok { display: flex; flex-direction: column; gap: 8px; }
.stok-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--kartu);
  border: 1px solid var(--tepi);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.stok-item .jejak { display: block; }
.stok-item .kanan { text-align: right; }
#tombolHitungUlang { margin-top: 16px; }

@media (max-width: 520px) {
  .baris-form { grid-template-columns: 1fr; }
  .baris-item { grid-template-columns: 1fr 1fr; grid-template-areas: "jenis jenis" "berat harga" "sub hapus"; }
  .baris-item .jenis { grid-area: jenis; }
  .baris-item .berat { grid-area: berat; }
  .baris-item .harga { grid-area: harga; }
  .baris-item .subtotal { grid-area: sub; text-align: left; align-self: center; }
  .baris-item .hapus-baris { grid-area: hapus; justify-self: end; }
  .baris-item { border-bottom: 1px dashed var(--tepi); padding-bottom: 10px; }
}