:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --text: #1d2229;
  --muted: #66707c;
  --line: #d9dde3;
  --accent: #2f6fde;
  --accent-text: #ffffff;
  --warn: #b5560b;
  --cell-empty: #e6ecf2;
  --cell-grid: #c9d2dc;
  --cell-filled: #7c8794;
  --item: #b34fd1;
  --step1: #e8493f;
  --step2: #2c9a52;
  --step3: #e0a100;
  --clear: rgba(47, 111, 222, 0.22);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15181c;
    --panel: #1e2228;
    --text: #e4e7eb;
    --muted: #98a2ae;
    --line: #333a43;
    --accent: #5b8ff0;
    --cell-empty: #2a3038;
    --cell-grid: #3a424c;
    --cell-filled: #8a95a3;
    --item: #d27df0;
    --warn: #f0a050;
    --clear: rgba(91, 143, 240, 0.28);
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 system-ui, "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
}
/* ---------- 상단 도구 막대 ---------- */
.toolbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px;
  padding: 10px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.toolbar h1 { margin: 0; font-size: 17px; white-space: nowrap; }
.tool-group { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.abilities label { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; }
.abilities input[type=number] { width: 46px; font: inherit; padding: 3px 4px; }
.toolbar .status { flex: 1 1 260px; }

/* ---------- 본문: 추천(넓게) + 인식 결과(좁게) ---------- */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 16px;
  padding: 16px 20px 24px;
  align-items: start;
}
.side { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
@media (max-width: 1000px) { .layout { grid-template-columns: 1fr; padding: 12px 16px; } }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  min-width: 0;
}
.panel h2 { margin: 0 0 10px; font-size: 15px; }
.hint { color: var(--muted); font-size: 12px; font-weight: normal; }
.fold { padding: 10px 16px; }
.fold summary { cursor: pointer; font-weight: 600; font-size: 14px; }
.fold[open] summary { margin-bottom: 10px; }

.btn-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 10px; }
button, .file-btn {
  font: inherit;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
}
button:disabled { opacity: 0.45; cursor: default; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
button.small { padding: 2px 8px; font-size: 12px; }
button.active { outline: 2px solid var(--accent); }
.check { display: inline-flex; gap: 4px; align-items: center; }

.preview-wrap { position: relative; border: 1px dashed var(--line); border-radius: 6px; min-height: 120px; }
.preview-wrap.drag { border-color: var(--accent); }
#preview { display: block; width: 100%; height: auto; }
#preview.calibrating { cursor: crosshair; }
.preview-empty { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; color: var(--muted); pointer-events: none; }
.status { margin: 0; color: var(--muted); font-size: 13px; }
.status.err { color: var(--warn); }

/* ---------- 인식 결과 ---------- */
.state-grid { display: flex; gap: 12px; align-items: flex-start; }
.board-canvas { display: block; }
#board-edit { cursor: pointer; flex: none; }
.slots { display: flex; flex-direction: column; gap: 8px; flex: 1; min-width: 0; }
.slot { border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px; }
.slot.warn { border-color: var(--warn); }
.slot-head { display: flex; justify-content: space-between; align-items: center; gap: 6px; margin-bottom: 4px; font-size: 13px; }
.slot-head select { font: inherit; font-size: 12px; max-width: 108px; }
.slot-body { display: flex; gap: 8px; align-items: center; }
.slot-btns { display: flex; flex-direction: column; gap: 4px; }

/* ---------- 추천 ---------- */
/* 요약은 두 줄 고정 높이, 순서 가이드 카드도 각 칸의 높이를 고정해 단계가 바뀌어도 보드 그림 위치가 같다 */
.summary { margin-bottom: 14px; height: 52px; overflow: hidden; }
.summary b { font-size: 20px; display: block; height: 30px; line-height: 30px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.summary .hint { display: block; height: 20px; line-height: 20px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.steps { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-start; }
.step { display: flex; flex-direction: column; gap: 8px; border: 1px solid var(--line); border-radius: 8px; padding: 10px; width: 184px; }
.step.done { opacity: 0.4; }
.step.current { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.step-title { font-weight: 600; display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.step-badge { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; color: #fff; font-size: 12px; flex: none; }
.step-info { display: flex; flex-direction: column; gap: 2px; }
.step-info .gain { color: var(--accent); font-weight: 600; font-size: 13px; height: 20px; line-height: 20px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.step-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; height: 36px; }
.extras:empty { display: none; }
.extras { margin-top: 2px; }
.advice { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.advice div { padding: 8px 10px; border-radius: 6px; background: var(--bg); }
.advice .warn { color: var(--warn); }

.reroll { margin-top: 10px; padding: 8px 10px; border-radius: 6px; border: 1px solid var(--line); }
.reroll.on { border-color: var(--item); background: color-mix(in srgb, var(--item) 12%, transparent); }
.reroll-head { font-weight: 600; }
.slot.reroll-pick { outline: 2px solid var(--item); }
.waste { margin-top: 10px; padding: 8px 10px; border-radius: 6px; border: 1px solid var(--line); font-weight: 600; }
.waste.on { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); }