/* =========================================================================
   fase-f/mpi-1.3/styles.css
   Deret Aritmetika & Rumus Jumlah n Suku Pertama — Fase F
   (Problem Based Learning)

   Hanya memuat gaya yang KHAS modul ini. Seluruh dasar design system
   (panel, tombol, kotak umpan balik, pilihan ganda, pemilahan, pertanyaan
   penuntun, perbandingan dugaan .dugaan-row, kartu ringkasan, urut-ketuk,
   papan info .info-poster, navigasi tahap, modal), tabel deret
   (.series-fill, .series-check), blok kode .lf-kode, serta komponen
   jumlah deret (.gauss-*, .stair-*, .psum-*) berasal dari
   shared/base.css.
   ========================================================================= */

/* -------------------------------------------------------------------------
   Tahap 1 — Orientasi: pesan klien, tabel XP & usulan tim
   ------------------------------------------------------------------------- */

.klien-chat {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin: var(--space-3) 0 var(--space-4);
}

.klien-chat__avatar {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  font-size: 1.4rem;
  border-radius: 50%;
  background: var(--color-warning-soft);
}

.klien-chat__bubble {
  margin: 0;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: 4px var(--radius-md) var(--radius-md) var(--radius-md);
  background: var(--color-surface);
  line-height: 1.6;
}

.xp-tabel-wrap {
  overflow-x: auto;
  margin: var(--space-3) 0;
  -webkit-overflow-scrolling: touch;
}

.xp-tabel {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.xp-tabel__caption {
  margin-bottom: var(--space-2);
  font-size: 0.8rem;
  font-weight: 700;
  text-align: left;
  color: var(--color-ink-muted);
}

.xp-tabel th,
.xp-tabel td {
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  text-align: center;
  white-space: nowrap;
}

.xp-tabel th {
  background: var(--color-bg-grid);
  font-size: 0.8rem;
  text-align: left;
}

.xp-tabel td {
  font-family: var(--font-mono);
}

.usulan-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: var(--space-3);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.usulan-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-top: 5px solid var(--color-orange);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.usulan-card--1 {
  border-top-color: var(--color-purple);
}

.usulan-card--2 {
  border-top-color: var(--color-blue);
}

.usulan-card__rumus {
  font-family: var(--font-mono);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.usulan-card__hasil {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary-strong);
}

.usulan-card .dl-caption {
  margin: 0;
}

/* -------------------------------------------------------------------------
   Tahap 3–6 — penulisan deret, langkah, uji cara, kode
   ------------------------------------------------------------------------- */

.deret-tulis {
  margin: var(--space-3) 0;
  padding: var(--space-2) var(--space-3);
  border-left: 4px solid var(--color-blue);
  border-radius: var(--radius-sm);
  background: var(--color-blue-soft);
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-blue-strong);
  overflow-wrap: anywhere;
}

.pasangan-langkah,
.karya-langkah {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.uji-pilih {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-3) 0;
}

.uji-btn {
  min-height: 44px;
  white-space: normal;
  text-align: left;
}

.kode-opsi {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  overflow-wrap: anywhere;
  white-space: normal;
}

.lf-kode {
  margin: var(--space-3) 0 var(--space-4);
}

.psum-lab + .dl-step {
  margin-top: var(--space-4);
}

/* -------------------------------------------------------------------------
   Temuan, hipotesis & laporan
   ------------------------------------------------------------------------- */

.temuan-list {
  margin: 0;
  padding-left: var(--space-5);
  line-height: 1.7;
}

.hipotesis-box {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid var(--color-purple);
  border-radius: var(--radius-md);
  background: var(--color-purple-soft);
}

.hipotesis-box__label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-purple-strong);
}

.hipotesis-box p {
  margin: var(--space-1) 0 var(--space-2);
  font-style: italic;
}

#posterWrap {
  margin: var(--space-4) 0;
}

/* -------------------------------------------------------------------------
   Tahap Uji Terap & Selesai
   ------------------------------------------------------------------------- */

.dl-exercise .dl-input-row .input-text {
  flex: 1 1 10rem;
  max-width: 16rem;
}

.contoh-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-3);
  margin: var(--space-4) 0;
}

.contoh-grid .formula-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
}

.contoh-isi {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary-strong);
  overflow-wrap: anywhere;
}

/* -------------------------------------------------------------------------
   Responsif
   ------------------------------------------------------------------------- */

@media (max-width: 600px) {
  .klien-chat__avatar {
    width: 36px;
    height: 36px;
    font-size: 1.1rem;
  }

  .uji-btn {
    width: 100%;
  }
}