:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --surface-2: #f0efec;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --hot: #eb6834;
  --cold: #2a78d6;
  --bar: #c3c2b7;
  --accent: #2a78d6;
  --good: #006300;
  --danger: #d03b3b;
  --ball-ink: #1b1b1b;
  --r1: #fbc400;
  --r2: #69c8f2;
  --r3: #ff7272;
  --r4: #aaaaaa;
  --r5: #b0d840;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --surface-2: #242422;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --hot: #d95926;
    --cold: #3987e5;
    --bar: #52514e;
    --accent: #3987e5;
    --good: #0ca30c;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 14px/1.55 system-ui, -apple-system, "Segoe UI", "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- 상단 ---------- */
.topbar { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 5; }
.topbar-inner {
  max-width: 1080px; margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.brand { margin: 0; font-size: 18px; font-weight: 700; display: flex; align-items: center; gap: 10px; }
.brand-mark {
  font-size: 11px; font-weight: 800; letter-spacing: .02em; padding: 3px 8px; border-radius: 999px;
  background: var(--r1); color: var(--ball-ink);
}
.sync { display: flex; align-items: center; gap: 10px; min-width: 0; }
.sync-status { color: var(--ink-2); font-size: 13px; }
.sync-status[data-status="error"] { color: var(--danger); }
.sync-status[data-status="pending"]::before { content: "⏳ "; }

/* ---------- 레이아웃 ---------- */
.page { max-width: 1080px; margin: 0 auto; padding: 20px; display: grid; gap: 16px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 760px) { .grid-2 { grid-template-columns: 1fr; } }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px; min-width: 0; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card-title { margin: 0 0 12px; font-size: 15px; font-weight: 700; }
.card-head .card-title { margin-bottom: 12px; }
.section-title { margin: 18px 0 8px; font-size: 13px; font-weight: 600; color: var(--ink-2); }
.section-title:first-child { margin-top: 0; }

.headline { margin: 0 0 10px; font-size: 16px; }
.muted { color: var(--muted); }
.sub { margin: 10px 0 0; color: var(--ink-2); font-size: 13px; }
.empty { margin: 0; color: var(--ink-2); }
body.is-busy main { opacity: .72; transition: opacity .15s; }

/* ---------- 버튼 ---------- */
.btn {
  font: inherit; font-weight: 600; border-radius: 10px; padding: 9px 16px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--ink);
}
.btn:hover:not(:disabled) { background: var(--surface-2); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:disabled { opacity: .55; cursor: progress; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; padding: 10px 22px; }
.btn.primary:hover:not(:disabled) { background: var(--accent); filter: brightness(1.08); }
.btn.ghost { background: transparent; }
.btn.small { padding: 5px 10px; font-size: 12px; margin-bottom: 12px; }

/* ---------- 생성 방식 ---------- */
.modes { border: 0; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
@media (max-width: 640px) { .modes { grid-template-columns: 1fr; } }
.mode { position: relative; cursor: pointer; }
.mode input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.mode-body {
  display: flex; flex-direction: column; gap: 2px; height: 100%;
  padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border); background: var(--surface);
  transition: border-color .15s, background-color .15s;
}
.mode-body strong { display: flex; align-items: center; gap: 8px; }
.mode-body strong::before {
  content: ""; width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--axis); flex: none;
}
.mode-body small { color: var(--ink-2); padding-left: 22px; }
.mode:hover .mode-body { background: var(--surface-2); }
.mode input:checked + .mode-body { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--surface)); }
.mode input:checked + .mode-body strong::before { border-color: var(--accent); background: radial-gradient(circle, var(--accent) 42%, transparent 48%); }
.mode input:focus-visible + .mode-body { outline: 2px solid var(--accent); outline-offset: 2px; }

.custom-box { margin-top: 14px; }
.field-label { display: block; font-weight: 600; margin-bottom: 6px; }
textarea {
  width: 100%; font: inherit; color: var(--ink); background: var(--surface); resize: vertical;
  border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px;
}
textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.hint { margin: 8px 0 0; font-size: 12px; color: var(--muted); }
.actions { margin-top: 14px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.message { color: var(--ink-2); }
.message[data-kind="error"] { color: var(--danger); }
.message[data-kind="ok"] { color: var(--good); }

.chips { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 8px; }
.chips-label { font-size: 12px; color: var(--muted); margin-right: 2px; }
.chip {
  font: inherit; font-size: 12px; padding: 3px 10px; border-radius: 999px;
  background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--border);
}
.chip-button { cursor: pointer; }
.chip-button:hover { color: var(--ink); border-color: var(--axis); }
.chip-button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* ---------- 공 ---------- */
.balls { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.ball {
  --size: 38px;
  width: var(--size); height: var(--size); border-radius: 50%; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px; color: var(--ball-ink); font-variant-numeric: tabular-nums;
}
.ball.small { --size: 28px; font-size: 12px; }
.ball.r1 { background: var(--r1); }
.ball.r2 { background: var(--r2); }
.ball.r3 { background: var(--r3); }
.ball.r4 { background: var(--r4); }
.ball.r5 { background: var(--r5); }
.ball.dim { background: var(--surface); color: var(--muted); box-shadow: inset 0 0 0 1px var(--border); }
.ball.ring-hot { box-shadow: 0 0 0 2px var(--surface-2), 0 0 0 4px var(--hot); }
.ball.ring-cold { box-shadow: 0 0 0 2px var(--surface-2), 0 0 0 4px var(--cold); }
.ball.ring-bonus { box-shadow: 0 0 0 2px var(--surface-2), 0 0 0 4px var(--ink); }
.plus { color: var(--muted); font-weight: 700; }

/* ---------- 게임 ---------- */
.games { display: grid; gap: 8px; }
.game { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 10px 12px; border-radius: 12px; background: var(--surface-2); }
.game.is-win { box-shadow: inset 0 0 0 1px var(--good); }
.game-label { width: 16px; font-weight: 700; color: var(--ink-2); }
.game-meta { margin-left: auto; display: flex; align-items: center; gap: 8px; color: var(--ink-2); font-size: 13px; }
.badge {
  display: inline-flex; align-items: center; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 700;
  border: 1px solid var(--border); color: var(--ink-2); background: var(--surface);
}
.badge.win { color: var(--good); border-color: currentColor; }
.detail { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 6px; margin-top: 12px; color: var(--ink-2); font-size: 13px; }
.key-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.key-dot.hot { background: var(--hot); }
.key-dot.cold { background: var(--cold); }
.detail + .detail { margin-top: 4px; }
.prompt { margin: 12px 0 0; padding: 8px 12px; border-left: 3px solid var(--axis); color: var(--ink); background: var(--surface-2); border-radius: 0 8px 8px 0; }
.note { margin: 6px 0 0; font-size: 13px; color: var(--ink-2); }
.note.warn::before { content: "⚠ "; }
.winning { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; font-size: 13px; }
.pending { display: flex; flex-direction: column; gap: 2px; padding: 12px 14px; margin-bottom: 12px; border-radius: 12px; border: 1px solid var(--border); }
.pending strong::before { content: "⏳ "; }
.pending span { color: var(--ink-2); font-size: 13px; }

/* ---------- 표 ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { padding: 8px 10px; text-align: right; border-bottom: 1px solid var(--grid); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
thead th { color: var(--ink-2); font-weight: 600; font-size: 12px; }
tbody th { font-weight: 600; }
tr.is-current > * { background: color-mix(in srgb, var(--accent) 7%, transparent); }

/* ---------- 차트 ---------- */
.legend { display: flex; flex-wrap: wrap; gap: 14px; margin: 10px 0 6px; font-size: 12px; color: var(--ink-2); }
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.swatch { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.swatch.hot, .key.hot { background: var(--hot); }
.swatch.cold, .key.cold { background: var(--cold); }
.swatch.base, .key.base { background: var(--bar); }
.swatch.avg { width: 14px; height: 2px; border-radius: 1px; background: var(--ink-2); opacity: .6; }
.chart { width: 100%; }
.chart svg { display: block; max-width: 100%; }
.chart .grid { stroke: var(--grid); stroke-width: 1; }
.chart .baseline { stroke: var(--axis); stroke-width: 1; }
.chart .avg { stroke: var(--ink-2); stroke-width: 1; opacity: .6; }
.chart .tick { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.chart .tick-strong { fill: var(--ink); font-weight: 700; }
.chart .bar-label { fill: var(--ink); font-size: 11px; font-weight: 700; }
.chart .bar-hot { fill: var(--hot); }
.chart .bar-cold { fill: var(--cold); }
.chart .bar-base { fill: var(--bar); }
.chart .bar.is-active { filter: brightness(1.12); }
.chart .hit { fill: transparent; cursor: default; outline: none; }
.chart .hit:focus-visible { stroke: var(--accent); stroke-width: 2; }

.tooltip {
  position: fixed; z-index: 20; pointer-events: none; min-width: 150px;
  background: var(--surface); color: var(--ink); border: 1px solid var(--border); border-radius: 10px;
  padding: 8px 12px; box-shadow: 0 6px 20px rgba(0, 0, 0, .14); font-size: 12px;
}
.tip-value { font-size: 16px; font-weight: 700; }
.tip-label { display: flex; align-items: center; gap: 6px; color: var(--ink-2); }
.tip-muted { color: var(--muted); }
.key { width: 12px; height: 2px; border-radius: 1px; display: inline-block; }