/* ============================================================
   NihonByte — Kanji Card CSS  (prefix: kc-)
   ============================================================

   STRUKTUR FILE:
   ┌─────────────────────────────────────────────────────────┐
   │  SECTION 1 — BASE                                       │
   │  Warna, font, border, animasi, transisi.                │
   │  Tidak ada nilai layout/sizing yang device-specific.    │
   ├─────────────────────────────────────────────────────────┤
   │  SECTION 2 — DESKTOP          (min-width: 1025px)       │
   ├─────────────────────────────────────────────────────────┤
   │  SECTION 3 — MOBILE POTRET    (max-width: 1024px        │
   │                                + orientation: portrait) │
   ├─────────────────────────────────────────────────────────┤
   │  SECTION 4 — MOBILE LANDSCAPE (max-width: 1024px        │
   │                                + orientation: landscape)│
   └─────────────────────────────────────────────────────────┘

   ATURAN:
   - Mau ubah layout desktop?       → cari SECTION 2
   - Mau ubah layout mobile potret? → cari SECTION 3
   - Mau ubah layout landscape?     → cari SECTION 4
   - Mau ubah warna/font/animasi?   → cari SECTION 1

   ============================================================ */


/* ============================================================
   SECTION 1 — BASE
   Hanya properti yang TIDAK berubah antar device:
   warna, font, border, shadow, animasi, transisi, cursor.
   Tidak ada: padding, margin, width, height, font-size,
   flex-direction, gap yang layout-specific.
   ============================================================ */

/* ── Poster wrapper ── */
.kc-poster {
  font-family: 'Ubuntu', 'Shippori Mincho', sans-serif;
  box-sizing: border-box;
  margin: 0 auto;
}

/* ── Header ── */
.kc-poster-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
}

.kc-poster-title {
  display: flex;
  align-items: center;
  flex: 1;
}

.kc-title-pill {
  background: #e11d48;
  color: #fff;
  font-weight: 800;
  border-radius: 999px;
  white-space: nowrap;
}

.kc-counter {
  color: #64748b;
  font-weight: 600;
  white-space: nowrap;
}

.kc-level-wrap { display: flex; align-items: center; }

.kc-level-select {
  appearance: none;
  -webkit-appearance: none;
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6,9 12,15 18,9'/%3E%3C/svg%3E") no-repeat right 12px center;
  border: 1.5px solid #e2e8f0;
  border-radius: 10px;
  font-weight: 600;
  color: #1e293b;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s;
}
.kc-level-select:focus { border-color: #e11d48; }

.kc-back-btn {
  display: flex;
  align-items: center;
  background: #fff;
  border: 1.5px solid #e2e8f0;
  border-radius: 10px;
  font-weight: 700;
  color: #1e293b;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
  white-space: nowrap;
}
.kc-back-btn:hover { border-color: #e11d48; color: #e11d48; }

/* ── Content box ── */
.kc-content-box {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow: 0 8px 32px rgba(20, 24, 30, 0.12);
  box-sizing: border-box;
  display: flex;
}

/* ── Card area ── */
.kc-card-area { display: flex; align-items: center; }

/* ── Card ── */
.kc-card {
  background: #ffffff;
  border-radius: 18px;
  border: 2px solid #e2e8f0;
  box-shadow:
    0 8px 28px rgba(15, 23, 42, 0.12),
    0 2px 6px  rgba(15, 23, 42, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
  user-select: none;
  -webkit-user-select: none;
  cursor: grab;
}
.kc-card:active { cursor: grabbing; }

.kc-card-inner {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  text-align: center;
}

.kc-card-badge {
  position: absolute;
  top: 12px; right: 12px;
  background: #f1f5f9;
  color: #64748b;
  font-weight: 700;
  border-radius: 999px;
}

.kc-card-kanji {
  font-family: 'Shippori Mincho', serif;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.1;
}

.kc-card-kana    { color: #475569; font-weight: 500; }
.kc-card-romaji  { color: #94a3b8; font-style: italic; }
.kc-card-meaning { font-weight: 700; color: #1e293b; }

.kc-card-divider {
  width: 40px;
  height: 2px;
  background: #e11d48;
  border-radius: 999px;
}

.kc-card-underdev {
  position: absolute;
  bottom: 12px; left: 0; right: 0;
  text-align: center;
  color: #cbd5e1;
  font-style: italic;
}

.kc-card-empty {
  color: #94a3b8;
  text-align: center;
}

/* ── Flip animations ── */
@keyframes kc-fo-l {
  from { transform: perspective(600px) rotateY(0);     opacity: 1; }
  to   { transform: perspective(600px) rotateY(90deg); opacity: 0; }
}
@keyframes kc-fo-r {
  from { transform: perspective(600px) rotateY(0);      opacity: 1; }
  to   { transform: perspective(600px) rotateY(-90deg); opacity: 0; }
}
@keyframes kc-fi-r {
  from { transform: perspective(600px) rotateY(-90deg); opacity: 0; }
  to   { transform: perspective(600px) rotateY(0);      opacity: 1; }
}
@keyframes kc-fi-l {
  from { transform: perspective(600px) rotateY(90deg); opacity: 0; }
  to   { transform: perspective(600px) rotateY(0);     opacity: 1; }
}

.kc-flip-out-left  { animation: kc-fo-l 0.15s ease-in  forwards; }
.kc-flip-out-right { animation: kc-fo-r 0.15s ease-in  forwards; }
.kc-flip-in-right  { animation: kc-fi-r 0.18s ease-out forwards; }
.kc-flip-in-left   { animation: kc-fi-l 0.18s ease-out forwards; }

/* ── Nav buttons ── */
.kc-nav-btn {
  border-radius: 50%;
  border: 1.5px solid #e2e8f0;
  background: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #1e293b;
  transition: border-color 0.2s, color 0.2s;
  flex-shrink: 0;
}
.kc-nav-btn:hover:not(:disabled) { border-color: #e11d48; color: #e11d48; }
.kc-nav-btn:disabled { opacity: 0.3; cursor: not-allowed; }

/* ── Examples panel ── */
.kc-examples-panel {
  background: #f8fafc;
  border-radius: 14px;
  border: 1.5px solid #e2e8f0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.kc-examples-header {
  border-bottom: 1.5px solid #e2e8f0;
  flex-shrink: 0;
  background: #fff;
}

.kc-examples-title {
  font-weight: 800;
  color: #475569;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.kc-examples-body {
  overflow-y: auto;
  overflow-x: hidden;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.kc-example-item {
  display: flex;
  align-items: flex-start;
  background: #fff;
  border: 1px solid #f1f5f9;
  border-radius: 10px;
  transition: background 0.15s;
}
.kc-example-item:hover { background: #fdf2f5; }

.kc-example-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.kc-example-jp     { font-family: 'Shippori Mincho', serif; color: #0f172a; line-height: 1.5; word-break: break-word; }
.kc-example-romaji { color: #94a3b8; font-style: italic; }
.kc-example-id     { color: #475569; font-weight: 500; }
.kc-underdev       { color: #cbd5e1 !important; font-style: italic; }

.kc-play-btn {
  flex-shrink: 0;
  border-radius: 50%;
  border: 1.5px solid #e2e8f0;
  background: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #e11d48;
  transition: border-color 0.2s, background 0.2s;
}
.kc-play-btn:hover:not(:disabled) { background: #fef2f2; border-color: #e11d48; }
.kc-play-btn:disabled { color: #cbd5e1; cursor: default; border-color: #f1f5f9; }

/* ── Single Word View ── */
.kc-single-box {
  position: relative;
}

.kc-single-back-btn {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid #e2e8f0;
  background: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #1e293b;
  transition: border-color 0.2s, color 0.2s;
  z-index: 10;
  padding: 0;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}
.kc-single-back-btn:hover { border-color: #e11d48; color: #e11d48; }


/* ============================================================
   SECTION 2 — DESKTOP
   Target: min-width 769px
   Layout: kartu + panel kanan berdampingan (row)
   ============================================================ */
@media (min-width: 769px) {

  /* Poster */
  .kc-poster {
    width: min(980px, calc(100% - 16px));
    padding: 12px 16px 20px;
  }

  /* Header */
  .kc-poster-header {
    gap: 10px;
    margin-bottom: 10px;
  }
  .kc-poster-title { gap: 10px; }
  .kc-title-pill   { font-size: 0.95rem; padding: 5px 16px; }
  .kc-counter      { font-size: 0.85rem; }
  .kc-level-select { padding: 8px 36px 8px 14px; font-size: 0.85rem; min-width: 150px; }
  .kc-back-btn     { gap: 6px; padding: 7px 14px; font-size: 0.8rem; }

  /* Content box — row */
  .kc-content-box {
    flex-direction: row;
    align-items: flex-start;
    padding: 20px;
    gap: 20px;
  }

  /* Kolom kiri (kartu) */
  .kc-left-col {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* Kolom kanan (contoh kalimat) */
  .kc-right-col { flex: 1; min-width: 0; }

  /* Card area */
  .kc-card-area { gap: 12px; }

  /* Card */
  .kc-card { width: 260px; height: 370px; }

  .kc-card-inner   { padding: 20px 16px; gap: 4px; }
  .kc-card-badge   { font-size: 0.65rem; padding: 3px 8px; }
  .kc-card-kanji   { font-size: 3.2rem; margin-bottom: 4px; }
  .kc-card-kana    { font-size: 1rem; }
  .kc-card-romaji  { font-size: 0.85rem; margin-bottom: 6px; }
  .kc-card-meaning { font-size: 1.05rem; }
  .kc-card-divider { margin: 10px auto; }
  .kc-card-underdev { font-size: 0.65rem; }
  .kc-card-empty   { font-size: 0.9rem; padding: 20px; }

  /* Nav buttons */
  .kc-nav-btn { width: 44px; height: 44px; }

  /* Examples panel */
  .kc-examples-panel  { height: auto; max-height: 420px; }
  .kc-examples-header { padding: 10px 16px 8px; }
  .kc-examples-title  { font-size: 0.75rem; }
  .kc-examples-body   { padding: 8px 10px 10px; gap: 2px; }

  .kc-example-item   { gap: 10px; padding: 9px 8px; }
  .kc-example-jp     { font-size: 1rem; }
  .kc-example-romaji { font-size: 0.78rem; }
  .kc-example-id     { font-size: 0.82rem; }
  .kc-underdev       { font-size: 0.8rem !important; }

  .kc-play-btn     { width: 32px; height: 32px; margin-top: 2px; }

  /* Single view */
  .kc-single-box        { padding-top: 56px !important; }
  .kc-single-back-btn   { top: 12px; left: 16px; width: 42px; height: 42px; }

}


/* ============================================================
   SECTION 3 — MOBILE POTRET
   Target: max-width 767px + orientation portrait
   Layout: kartu di atas, panel contoh kalimat di bawah (column)
   ============================================================ */
@media (max-width: 767px) and (orientation: portrait) {

  /* Poster */
  .kc-poster {
    width: min(980px, calc(100% - 16px));
    margin-top: -18px;
  }

  /* Header */
  .kc-poster-header {
    gap: 10px;
    margin-bottom: 10px;
  }
  .kc-poster-title { gap: 10px; }
  .kc-title-pill   { font-size: 0.95rem; padding: 5px 16px; }
  .kc-counter      { font-size: 0.85rem; }
  .kc-level-select { padding: 8px 36px 8px 14px; font-size: 0.85rem; min-width: 150px; }
  .kc-back-btn     { gap: 6px; padding: 7px 14px; font-size: 0.8rem; }

  /* Content box — column, kartu centered */
  .kc-content-box {
    flex-direction: column;
    align-items: center;
    padding: 20px;
    gap: 20px;
  }

  /* Kolom kiri (kartu) — full width, centered */
  .kc-left-col {
    width: 100%;
    display: flex;
    justify-content: center;
  }

  /* Kolom kanan (contoh kalimat) — full width */
  .kc-right-col { width: 100%; }

  /* Card area */
  .kc-card-area { gap: 12px; }

  /* Card */
  .kc-card { width: 240px; height: 340px; }

  .kc-card-inner   { padding: 20px 16px; gap: 4px; }
  .kc-card-badge   { font-size: 0.65rem; padding: 3px 8px; }
  .kc-card-kanji   { font-size: 3.2rem; margin-bottom: 4px; }
  .kc-card-kana    { font-size: 1rem; }
  .kc-card-romaji  { font-size: 0.85rem; margin-bottom: 6px; }
  .kc-card-meaning { font-size: 1.05rem; }
  .kc-card-divider { margin: 10px auto; }
  .kc-card-underdev { font-size: 0.65rem; }
  .kc-card-empty   { font-size: 0.9rem; padding: 20px; }

  /* Nav buttons */
  .kc-nav-btn { width: 44px; height: 44px; }

  /* Examples panel */
  .kc-examples-panel  { height: auto; }
  .kc-examples-header { padding: 10px 16px 8px; }
  .kc-examples-title  { font-size: 0.75rem; }
  .kc-examples-body   { padding: 8px 10px 10px; gap: 2px; }

  .kc-example-item   { gap: 10px; padding: 9px 8px; }
  .kc-example-jp     { font-size: 1rem; }
  .kc-example-romaji { font-size: 0.78rem; }
  .kc-example-id     { font-size: 0.82rem; }
  .kc-underdev       { font-size: 0.8rem !important; }

  .kc-play-btn     { width: 32px; height: 32px; margin-top: 2px; }

  /* Single view */
  .kc-single-box       { padding-top: 50px !important; }
  .kc-single-back-btn  { top: 10px; left: 12px; width: 36px; height: 36px; }

}


/* ============================================================
   SECTION 4 — MOBILE LANDSCAPE
   Target: orientation landscape + max-height 520px
   Layout: kartu kiri (42%), panel kanan (58%), row, stretch
   ============================================================ */
@media screen and (orientation: landscape) and (max-height: 520px) {

  /* Poster */
  .kc-poster {
    width: 100%;
    padding: 0px 12px 12px;
  }

  /* Header */
  .kc-poster-header {
    gap: 8px;
    margin-bottom: 8px;
  }
  .kc-poster-title { gap: 8px; }
  .kc-title-pill   { font-size: 0.85rem; padding: 4px 12px; }
  .kc-counter      { font-size: 0.78rem; }
  .kc-level-select { padding: 6px 30px 6px 10px; font-size: 0.78rem; min-width: 120px; }
  .kc-back-btn     { gap: 5px; padding: 5px 10px; font-size: 0.75rem; }

  /* Content box — row, stretch penuh */
  .kc-content-box {
    flex-direction: row;
    align-items: stretch;
    height: 100%;
    padding: 12px;
    gap: 12px;
  }

  /* Kolom kiri (kartu) */
  .kc-left-col {
    flex: 0 0 42%;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* Kolom kanan (contoh kalimat) */
  .kc-right-col {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  /* Card area */
  .kc-card-area { gap: 10px; }

  /* Card — lebih kecil */
  .kc-card { width: 176px; height: 248px; }

  .kc-card-inner   { padding: 12px 10px; gap: 2px; }
  .kc-card-badge   { font-size: 0.6rem; padding: 2px 6px; }
  .kc-card-kanji   { font-size: 2.1rem; margin-bottom: 2px; }
  .kc-card-kana    { font-size: 0.8rem; }
  .kc-card-romaji  { font-size: 0.72rem; margin-bottom: 4px; }
  .kc-card-meaning { font-size: 0.85rem; }
  .kc-card-divider { margin: 6px auto; }
  .kc-card-underdev { font-size: 0.6rem; }
  .kc-card-empty   { font-size: 0.8rem; padding: 12px; }

  /* Nav buttons */
  .kc-nav-btn { width: 36px; height: 36px; }

  /* Examples panel — stretch penuh secara vertikal */
  .kc-examples-panel  { height: 100%; }
  .kc-examples-header { padding: 6px 12px; }
  .kc-examples-title  { font-size: 0.7rem; }
  .kc-examples-body   { padding: 5px 8px; gap: 1px; }

  .kc-example-item   { gap: 8px; padding: 6px 8px; }
  .kc-example-jp     { font-size: 0.85rem; }
  .kc-example-romaji { font-size: 0.68rem; }
  .kc-example-id     { font-size: 0.7rem; }
  .kc-underdev       { font-size: 0.7rem !important; }

  .kc-play-btn       { width: 26px; height: 26px; margin-top: 1px; }
  .kc-play-btn svg   { width: 13px; height: 13px; }

  /* Single view */
  .kc-single-box        { padding-top: 42px !important; }
  .kc-single-back-btn   { top: 8px; left: 10px; width: 32px; height: 32px; }
  .kc-single-back-btn svg { width: 16px; height: 16px; }

}