:root {
  --bg: #0f1115;
  --card: #171a21;
  --card2: #1f242e;
  --line: #2a303c;
  --text: #f1f4fa;
  --muted: #c3ccd9;
  --accent: #4f8cff;
  --accent2: #3a6fd6;
  --ok: #34c759;
  /* 공식 로또 볼 색 */
  --b1: #fbc400;  /* 1-10 노랑 */
  --b2: #69c8f2;  /* 11-20 파랑 */
  --b3: #ff7272;  /* 21-30 빨강 */
  --b4: #8b8e94;  /* 31-40 회색 */
  --b5: #b0d840;  /* 41-45 초록 */
}

* { box-sizing: border-box; }
html { font-size: 18px; }            /* 노안 대비 기본 글씨 확대 (기존 16px) */
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", "Malgun Gothic", system-ui, sans-serif;
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 20px 16px 48px;
}

.head h1 { font-size: 1.65rem; margin: 4px 0 2px; }
.sub { color: var(--muted); font-size: 1rem; margin: 0 0 16px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 16px;
}

.row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.row:last-child { margin-bottom: 0; }
.lbl { font-size: 1rem; color: var(--muted); min-width: 64px; }

/* 세그먼트 토글 */
.seg {
  display: inline-flex;
  background: var(--card2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 4px;
  gap: 4px;
}
.modeRow .seg { width: 100%; }
.modeRow .seg-btn { flex: 1; }
.seg-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  font-size: 1.02rem;
  padding: 12px 16px;
  border-radius: 9px;
  cursor: pointer;
  transition: .15s;
}
.seg.small .seg-btn { padding: 10px 13px; font-size: .95rem; }
.seg-btn.active { background: var(--accent); color: #fff; }
.seg-btn:not(.active):hover { color: var(--text); }

/* 추천 방식 — 긴 영어 용어 없이 큰 버튼과 쉬운 설명으로 표시 */
.method-row { align-items: flex-start; }
.method-row .lbl { width: 100%; }
.method-area { width: 100%; }
.method-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  width: 100%;
}
.method-grid .seg-btn { min-height: 48px; padding: 9px 10px; }
.method-description {
  margin-top: 9px;
  padding: 12px 13px;
  border-radius: 10px;
  background: var(--card2);
  color: var(--text);
  font-size: .94rem;
}
.method-note { display: block; margin-top: 5px; color: var(--muted); font-size: .86rem; }

/* 스테퍼 */
.stepper {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background: var(--card2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 4px 8px;
}
.stepper button {
  width: 42px; height: 42px;
  border: 0; border-radius: 8px;
  background: var(--line); color: var(--text);
  font-size: 1.5rem; cursor: pointer;
}
.stepper button:active { background: var(--accent); }
.stepper span { min-width: 26px; text-align: center; font-weight: 700; font-size: 1.35rem; }

/* 고급: 고정/제외 */
.advanced { border-top: 1px solid var(--line); padding-top: 12px; margin-bottom: 14px; }
.advanced summary { cursor: pointer; color: var(--muted); font-size: 1rem; user-select: none; }
.pickInfo { font-size: .92rem; color: var(--muted); margin: 10px 0; }
.pickInfo .fix { color: var(--ok); }
.pickInfo .exc { color: var(--b3); }
.grid {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 6px;
  margin-bottom: 10px;
}
.grid button {
  aspect-ratio: 1;
  border: 1px solid var(--line);
  background: var(--card2);
  color: var(--text);
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}
.grid button.fix { background: var(--ok); color: #06210f; border-color: var(--ok); }
.grid button.exc { background: var(--b3); color: #2a0808; border-color: var(--b3); text-decoration: line-through; }
.link-btn { background: none; border: 0; color: var(--accent); cursor: pointer; font-size: .95rem; padding: 0; }

.generate {
  width: 100%;
  border: 0;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-size: 1.3rem;
  font-weight: 700;
  padding: 18px;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(79,140,255,.25);
}
.generate:active { transform: translateY(1px); }
.generate:disabled { opacity: .55; cursor: wait; box-shadow: none; }

/* 결과 */
.results { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.game {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  animation: pop .35s ease both;
}
.game .gtag { color: var(--text); font-size: 1.1rem; font-weight: 700; min-width: 20px; }
.game .balls { display: flex; gap: 8px; flex-wrap: wrap; flex: 1; }
.game .meta { width: 100%; font-size: .95rem; color: var(--muted); margin-top: 4px; padding-left: 30px; }

/* 생성된 번호별 통계 근거 */
.number-reasons { width: 100%; margin-top: 4px; padding-top: 8px; border-top: 1px solid var(--line); }
.number-reasons summary { color: #91b7ff; cursor: pointer; font-size: .92rem; font-weight: 700; user-select: none; }
.reason-list { display: flex; flex-direction: column; gap: 7px; margin-top: 9px; }
.reason-row { display: grid; grid-template-columns: 32px 1fr; align-items: center; gap: 9px; }
.ball.reason-ball { width: 30px; height: 30px; font-size: .8rem; }
.reason-text { color: var(--text); font-size: .88rem; }
.reason-note { margin-top: 9px; color: var(--muted); font-size: .78rem; line-height: 1.45; }

@keyframes pop { from { opacity: 0; transform: translateY(6px) scale(.98); } to { opacity: 1; transform: none; } }

.ball {
  --c: var(--b1);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, #ffffffcc, transparent 42%), var(--c);
  color: #1a1a1a;
  font-weight: 800;
  font-size: 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 -3px 6px rgba(0,0,0,.18), 0 2px 4px rgba(0,0,0,.3);
  flex: 0 0 auto;
}
.ball.sm { width: 40px; height: 40px; font-size: 1.02rem; }
.ball.bonus { position: relative; }
.ball.bonus::after { content: "+"; position: absolute; left: -14px; color: var(--muted); font-weight: 700; }

/* 추천번호 저장 / 회차별 당첨 확인 */
.result-actions { margin: -4px 0 16px; }
.save-results {
  width: 100%; border: 1px solid #55d879; border-radius: 13px;
  background: #173522; color: #dfffe8; font: inherit; font-weight: 700;
  font-size: 1.08rem; padding: 15px; cursor: pointer;
}
.save-results:active { transform: translateY(1px); }
.save-status { min-height: 1.4em; margin-top: 7px; text-align: center; color: var(--muted); font-size: .92rem; }
.save-status.ok { color: #71e891; }
.save-status.err { color: var(--b3); }
.saved-card h2 { margin: 0; font-size: 1.18rem; }
.saved-intro { margin: 6px 0 14px; color: var(--muted); font-size: .92rem; }
.saved-list { display: flex; flex-direction: column; gap: 12px; }
.saved-empty { padding: 18px 12px; border: 1px dashed var(--line); border-radius: 11px; text-align: center; color: var(--muted); }
.saved-entry { padding: 13px; border: 1px solid var(--line); border-radius: 13px; background: var(--card2); }
.saved-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.saved-head strong { display: inline-block; margin-right: 8px; font-size: 1.04rem; }
.draw-status { display: inline-block; border-radius: 999px; padding: 2px 8px; font-size: .78rem; font-weight: 700; }
.draw-status.pending { background: #3d3520; color: #f6d36b; }
.draw-status.complete { background: #183923; color: #71e891; }
.saved-delete { border: 0; background: transparent; color: var(--muted); font: inherit; font-size: .86rem; padding: 3px 5px; cursor: pointer; }
.saved-delete:hover { color: var(--b3); }
.saved-meta { color: var(--muted); font-size: .82rem; margin: 3px 0 10px; }
.winning-line { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; margin: 8px 0 12px; color: var(--muted); font-size: .86rem; }
.winning-balls { display: inline-flex; align-items: center; gap: 5px; flex-wrap: wrap; }
.winning-plus { color: var(--muted); font-weight: 800; }
.saved-games { display: flex; flex-direction: column; gap: 8px; }
.saved-game { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; padding-top: 8px; border-top: 1px solid var(--line); }
.saved-game-label { margin: 4px 0 0 25px; color: #91b7ff; font-size: .8rem; font-weight: 700; }
.saved-reasons { width: calc(100% - 25px); margin: 6px 0 0 25px; padding-top: 6px; }
.saved-reasons summary { font-size: .84rem; }
.saved-reasons .reason-text { font-size: .82rem; }
.saved-gtag { width: 18px; font-weight: 800; }
.saved-balls { display: inline-flex; gap: 5px; flex-wrap: wrap; }
.ball.saved-ball { width: 34px; height: 34px; font-size: .9rem; }
.ball.saved-ball.hit { box-shadow: 0 0 0 3px var(--ok), inset 0 -3px 6px rgba(0,0,0,.18); }
.ball.saved-ball.bonus-hit { box-shadow: 0 0 0 3px var(--b1), inset 0 -3px 6px rgba(0,0,0,.18); }
.saved-result { margin-left: auto; color: var(--muted); font-size: .86rem; font-weight: 700; }
.saved-result.winner { color: #71e891; }
.saved-result.pending { font-weight: 500; }

/* 데이터 커버리지 / 받아오기 */
.coverage { padding: 14px 16px; }
.cov-head { display: flex; align-items: center; gap: 12px; justify-content: space-between; flex-wrap: wrap; }
.cov-title { font-weight: 700; font-size: 1.05rem; margin-bottom: 2px; }
.cov-line { font-size: 1rem; color: var(--text); }
.cov-line b { color: var(--accent); }
.cov-sub { font-size: .9rem; color: var(--muted); margin-top: 2px; }
.fetch-btn {
  border: 0; border-radius: 10px;
  background: var(--card2); color: var(--text);
  border: 1px solid var(--line);
  font: inherit; font-weight: 600; font-size: 1rem;
  padding: 11px 16px; cursor: pointer; white-space: nowrap;
}
.fetch-btn:not(:disabled):hover { border-color: var(--accent); color: var(--accent); }
.fetch-btn:disabled { opacity: .55; cursor: default; }
.fetch-btn.busy { opacity: .8; cursor: progress; }
.cov-status { font-size: .9rem; color: var(--muted); margin-top: 8px; min-height: 1em; }
.cov-status.ok { color: var(--ok); }
.cov-status.err { color: var(--b3); }

/* 통계 */
.stats { padding: 0; overflow: hidden; }
.stats-toggle {
  width: 100%; text-align: left;
  background: none; border: 0; color: var(--text);
  font: inherit; font-weight: 700; font-size: 1.15rem;
  padding: 16px; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between;
}
.chev { transition: .2s; color: var(--muted); }
.stats-toggle[aria-expanded="true"] .chev { transform: rotate(180deg); }
.stats-body { padding: 0 16px 18px; border-top: 1px solid var(--line); }
.latest { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 14px 0; }
.latest .cap { width: 100%; font-size: .95rem; color: var(--muted); }
.stat-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 6px 0 4px; }
.stat-cols h3, .stats-body > h3 { font-size: 1.05rem; margin: 14px 0 8px; }
.rank { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.rank li { display: flex; align-items: center; gap: 8px; font-size: 1rem; color: var(--muted); }

.freqChart {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 5px;
  margin-top: 4px;
}
.fcell { text-align: center; }
.fbar-wrap { height: 60px; display: flex; align-items: flex-end; background: var(--card2); border-radius: 5px; overflow: hidden; }
.fbar { width: 100%; background: linear-gradient(180deg, var(--accent), var(--accent2)); border-radius: 5px 5px 0 0; min-height: 3px; }
.fnum { font-size: .78rem; color: var(--muted); margin-top: 3px; }
.fcnt { font-size: .7rem; color: var(--muted); opacity: .75; }

.foot { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; color: var(--muted); font-size: .85rem; margin-top: 8px; }

@media (max-width: 460px) {
  .stat-cols { grid-template-columns: 1fr; }
  .ball { width: 42px; height: 42px; font-size: 1.12rem; }
  .game .balls { gap: 6px; }
  .grid { grid-template-columns: repeat(9, 1fr); gap: 4px; }
  .grid button { font-size: .9rem; }
  .head h1 { font-size: 1.4rem; }
  .saved-result { width: 100%; margin-left: 25px; }
  .saved-head strong { display: block; margin-bottom: 5px; }
  .saved-reasons { width: 100%; margin-left: 0; }
}