/* ============================================================
 *  KraftLotto — 자체 디자인 토큰 + Bootstrap 5 합성
 *  - 다크모드는 <html data-bs-theme="dark"> 로 토글
 * ============================================================ */
:root,
[data-bs-theme="light"] {
  --kraft-bg: #f7f8fb;
  --kraft-surface: #ffffff;
  --kraft-muted: #6b7280;
}
[data-bs-theme="dark"] {
  --kraft-bg: #0e1116;
  --kraft-surface: #161a22;
  --kraft-muted: #9aa3b2;
}

html, body { background: var(--kraft-bg); }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI",
               "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
}

/* Navbar / Footer */
.kraft-navbar { background: var(--kraft-surface); border-bottom: 1px solid var(--bs-border-color); }
.kraft-footer { background: var(--kraft-surface); }

/* Card */
.kraft-card {
  border: 1px solid var(--bs-border-color);
  border-radius: 8px;
  background: var(--kraft-surface);
  box-shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(0,0,0,.04);
}
[data-bs-theme="dark"] .kraft-card {
  box-shadow: 0 1px 2px rgba(0,0,0,.4), 0 12px 28px rgba(0,0,0,.35);
}

/* 6볼 */
.kraft-balls { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.kraft-ball {
  width: 34px; height: 34px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px; color: #fff;
  background: linear-gradient(180deg, rgba(255,255,255,.18), rgba(0,0,0,.05));
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.15);
}
.kraft-ball.b1 { background: #fbc400; color: #3b2e00; }
.kraft-ball.b2 { background: #69c8f2; color: #0a3a4a; }
.kraft-ball.b3 { background: #ff7272; }
.kraft-ball.b4 { background: #aaaaaa; color: #1c1c1c; }
.kraft-ball.b5 { background: #b0d840; color: #22330a; }
.kraft-ball.bonus { outline: 2px dashed var(--bs-primary); outline-offset: 2px; }
.kraft-ball-plus { color: var(--kraft-muted); margin: 0 4px; user-select: none; }

/* 조합 행 */
.kraft-combo {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 0; border-top: 1px dashed var(--bs-border-color);
}
.kraft-combo:first-child { border-top: 0; }
.kraft-combo .idx {
  width: 26px; color: var(--kraft-muted);
  font-variant-numeric: tabular-nums; font-size: 12px;
}

/* Key/Value */
.kraft-kv {
  display: grid; grid-template-columns: 110px 1fr; gap: 8px 14px;
  margin-top: 12px; margin-bottom: 0;
}
.kraft-kv dt { color: var(--kraft-muted); font-weight: 500; }
.kraft-kv dd { margin: 0; font-variant-numeric: tabular-nums; }

/* 빈도 그리드 */
.kraft-freq-grid {
  display: grid; grid-template-columns: repeat(9, minmax(0, 1fr)); gap: 6px;
}
.kraft-freq-cell {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 6px 4px; border-radius: 8px;
  background: var(--kraft-bg); border: 1px solid var(--bs-border-color);
}
.kraft-freq-cell .n { font-weight: 700; font-size: 13px; }
.kraft-freq-cell .bar {
  width: 100%; height: 4px; background: var(--bs-border-color);
  border-radius: 99px; overflow: hidden;
}
.kraft-freq-cell .bar > i { display: block; height: 100%; background: var(--bs-primary); }
.kraft-freq-cell small { color: var(--kraft-muted); font-variant-numeric: tabular-nums; }

@media (max-width: 575.98px) {
  .kraft-freq-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}

/* 회차 목록 (페이지네이션) */
.kraft-list { display: flex; flex-direction: column; gap: 6px; }
.kraft-list-row {
  display: grid;
  grid-template-columns: 88px 110px 1fr;
  gap: 10px;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid var(--bs-border-color);
  border-radius: 8px;
  background: var(--kraft-bg);
}
.kraft-list-row .round { font-weight: 700; }
.kraft-list-row .date { color: var(--kraft-muted); font-size: 12px; font-variant-numeric: tabular-nums; }
@media (max-width: 575.98px) {
  .kraft-list-row { grid-template-columns: 1fr; }
}

/* Toast */
.kraft-toast {
  position: fixed; left: 50%; bottom: 24px;
  transform: translateX(-50%) translateY(20px);
  opacity: 0; transition: transform .25s, opacity .25s;
  will-change: transform, opacity;
  background: var(--kraft-surface);
  border: 1px solid var(--bs-border-color);
  padding: 10px 14px; border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,.15);
  z-index: 1080; max-width: 90vw;
}
.kraft-toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.kraft-toast.error { border-color: var(--bs-danger); color: var(--bs-danger); }

/* 움직임 감소 선호 사용자: 전환 효과 비활성화 */
@media (prefers-reduced-motion: reduce) {
  .kraft-toast { transition: none; }
}
