/* ============================================================
   Lecture · SQLD 벼락치기 모의고사 풀이특강 — slide layout extensions
   Builds on /colors_and_type.css and /slides/_slide.css
   ─ 50문제 5분할 데크 공통. 출제(Q)/해설(A) 분리 포맷.
   ─ 코어(_slide.css) 승격 컴포넌트는 재정의하지 않음:
     tbl.compact · code · callout.compact · trap-row · pass-tip · cmp-tbl
     · q-source · choices · def-box · mnemonic · metaphor · real
   ─ 신규(SQLD 풀이 시그니처):
     qbox(문제 발문 박스) · data-tbl(입력 테이블) · run-tbl(실행 결과)
     · sql-wrap(코드+캡션) · two-pane(입력표+SQL 가로결합)
     · opt-grid(보기 결과표 4분할) · trace(행 단위 추적) · ans-head(정답 헤더)
   ============================================================ */

/* 안전영역(y≤672) 압축 — 50문제 데크 공통 기본 갭 */
.slide-content { gap: 20px; }

/* ---------- 발문 박스 (회색 카드) — 개념형 제시문 ---------- */
.qbox {
  background: var(--ink-50);
  border: 1.5px solid var(--ink-200);
  border-left: 5px solid var(--ink-1000);
  border-radius: 0 10px 10px 0;
  padding: 16px 22px;
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-900);
}
.qbox b { color: var(--ink-1000); font-weight: 800; }

/* ---------- QUESTION 칩 헤더 (Q번호 + 출처 + 유형태그) ---------- */
.q-head {
  display: flex;
  align-items: stretch;
  background: var(--ink-50);
  border: 1.5px solid var(--ink-200);
  border-radius: 12px;
  overflow: hidden;
}
.q-head .qno {
  background: var(--ink-1000);
  color: var(--eduwill-yellow);
  width: 116px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 14px;
  flex-shrink: 0;
}
.q-head .qno .lab { font-size: 11px; font-weight: 800; letter-spacing: 0.12em; }
.q-head .qno .n   { font: 800 44px/1 var(--font-sans); margin-top: 2px; }
.q-head .qbody { flex: 1; padding: 14px 22px; display: flex; flex-direction: column; justify-content: center; gap: 8px; min-width: 0; }
.q-head .qbody .meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.q-head .qbody .ask { font-size: 19px; line-height: 1.4; color: var(--ink-1000); font-weight: 700; }
.q-head .qbody .ask b { color: var(--ink-1000); font-weight: 800; }

/* ---------- 입력 데이터 테이블 (작은 표) ---------- */
.data-tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.data-tbl caption {
  caption-side: top; text-align: left; font-size: 12px; font-weight: 800;
  color: var(--ink-500); letter-spacing: 0.04em; padding-bottom: 5px;
}
.data-tbl thead th {
  background: var(--ink-1000); color: white; padding: 6px 12px;
  text-align: left; font-weight: 700; font-size: 12.5px; white-space: nowrap;
}
.data-tbl tbody td {
  padding: 5px 12px; border-bottom: 1px solid var(--ink-200);
  color: var(--ink-900); font-variant-numeric: tabular-nums;
}
.data-tbl tbody tr:nth-child(even) td { background: var(--ink-50); }
.data-tbl tbody tr.hi td { background: var(--eduwill-yellow-100); font-weight: 700; }
.data-tbl .null { color: var(--ink-400); font-style: italic; }

/* ---------- 실행 결과 테이블 (초록 헤더 = 정답 결과) ---------- */
.run-tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.run-tbl caption {
  caption-side: top; text-align: left; font-size: 12px; font-weight: 800;
  color: var(--ok-700); letter-spacing: 0.04em; padding-bottom: 5px;
}
.run-tbl thead th {
  background: var(--ok-500); color: white; padding: 6px 12px;
  text-align: left; font-weight: 700; font-size: 12.5px; white-space: nowrap;
}
.run-tbl tbody td {
  padding: 5px 12px; border-bottom: 1px solid var(--ok-100);
  color: var(--ink-900); font-variant-numeric: tabular-nums;
}
.run-tbl tbody tr:nth-child(even) td { background: var(--ok-50); }

/* ---------- SQL 코드 캡션 래퍼 (.code 위 라벨) ---------- */
.sql-wrap { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.sql-wrap .cap { font-size: 12px; font-weight: 800; color: var(--ink-500); letter-spacing: 0.04em; }
/* 풀이특강 코드는 조밀하게 — 14px, 한 줄 한 절(키워드 줄바꿈) */
.code.q { font-size: 14px; line-height: 1.5; padding: 14px 18px; }
.code.q.sm { font-size: 12.5px; line-height: 1.45; padding: 12px 16px; }

/* ---------- 입력표 + SQL 가로 2분할 ---------- */
.two-pane { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.two-pane.wide-sql { grid-template-columns: 0.85fr 1.15fr; }
.two-pane .pane { min-width: 0; display: flex; flex-direction: column; gap: 10px; }

/* ---------- 보기 결과표 4분할 (선지가 표인 문제) ---------- */
.opt-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.opt-grid.c4 { grid-template-columns: repeat(4, 1fr); }
.opt-card {
  background: white; border: 1.5px solid var(--ink-200);
  border-radius: 10px; padding: 10px 12px; min-width: 0;
}
.opt-card .opt-no { font-size: 14px; font-weight: 800; color: var(--ink-700); margin-bottom: 6px; }
.opt-card.is-correct { border-color: var(--ok-500); background: var(--ok-50); box-shadow: 0 0 0 1.5px var(--ok-500); }
.opt-card.is-correct .opt-no { color: var(--ok-700); }
.opt-card.is-correct .opt-no::after { content: " ✓ 정답"; font-size: 11px; color: var(--ok-700); }
.opt-card .mini-tbl { width: 100%; border-collapse: collapse; font-size: 11.5px; }
.opt-card .mini-tbl th { background: var(--ink-1000); color: white; padding: 3px 7px; text-align: left; font-weight: 700; font-size: 10.5px; }
.opt-card .mini-tbl td { padding: 3px 7px; border-bottom: 1px solid var(--ink-200); color: var(--ink-900); }

/* ---------- 정답 헤더 (해설 슬라이드 최상단) ---------- */
.ans-head {
  display: flex; align-items: center; gap: 20px;
  padding: 14px 24px; background: var(--ok-50);
  border-radius: 12px; border: 2px solid var(--ok-500);
}
.ans-head .badge {
  width: 56px; height: 56px; background: var(--ok-500); color: white;
  display: grid; place-items: center; border-radius: 999px;
  font: 800 28px/1 var(--font-sans); flex-shrink: 0;
}
.ans-head .meta { flex: 1; min-width: 0; }
.ans-head .meta .lab { font-size: 12px; font-weight: 800; letter-spacing: 0.1em; color: var(--ok-700); text-transform: uppercase; }
.ans-head .meta .key { margin-top: 2px; font-size: 19px; font-weight: 800; color: var(--ink-1000); line-height: 1.3; }
.ans-head .tip { text-align: right; flex-shrink: 0; }
.ans-head .tip .lab { font-size: 11px; font-weight: 700; color: var(--ink-500); letter-spacing: 0.06em; }
.ans-head .tip .val { font-size: 16px; font-weight: 800; color: var(--ink-1000); }

/* ---------- 행 단위 추적 (NULL 연산·집계 풀이) ---------- */
.trace { display: flex; flex-direction: column; gap: 7px; }
.trace .row {
  display: grid; grid-template-columns: 64px 1fr auto;
  gap: 12px; align-items: center;
  background: white; border: 1.5px solid var(--ink-200);
  border-radius: 9px; padding: 8px 14px; font-size: 13.5px;
}
.trace .row .lhs { font-weight: 800; color: var(--ink-700); font-size: 12.5px; }
.trace .row .calc { color: var(--ink-800); line-height: 1.4; font-family: var(--font-mono); font-size: 12.5px; }
.trace .row .calc b { color: var(--ink-1000); font-family: var(--font-sans); }
.trace .row .res {
  font-weight: 800; color: var(--ok-700); font-variant-numeric: tabular-nums;
  background: var(--ok-50); padding: 3px 12px; border-radius: 999px; white-space: nowrap;
}
.trace .row.drop .res { color: var(--ink-400); background: var(--ink-100); }

/* ---------- 단계 풀이 카드 (step-card 풀이특강 변형) ---------- */
.solve { display: flex; flex-direction: column; gap: 9px; }
.solve .st {
  display: grid; grid-template-columns: 26px 1fr; gap: 12px; align-items: start;
  background: var(--ink-50); border-left: 4px solid var(--eduwill-yellow);
  border-radius: 0 9px 9px 0; padding: 10px 14px;
}
.solve .st .n {
  width: 26px; height: 26px; background: var(--ink-1000); color: var(--eduwill-yellow);
  display: grid; place-items: center; border-radius: 999px; font: 800 13px/1 var(--font-sans);
}
.solve .st .tx { font-size: 14px; line-height: 1.5; color: var(--ink-900); }
.solve .st .tx b { color: var(--ink-1000); font-weight: 800; }
.solve .st .tx code { font-family: var(--font-mono); font-size: 12.5px; background: var(--ink-100); padding: 1px 5px; border-radius: 4px; }

/* ---------- 인라인 코드 (보기·발문 SQL 짧은 조각) ---------- */
code.inl { font-family: var(--font-mono); font-size: 0.92em; background: var(--ink-100); padding: 1px 5px; border-radius: 4px; color: var(--ink-1000); }

/* ---------- choices 풀이특강 압축 변형 (SQL 보기는 길어서 좌측 정렬) ---------- */
.choices.sql .choice { align-items: start; font-size: 15px; padding: 11px 16px; }
.choices.sql .choice .num { margin-top: 1px; }
.choices.sql .choice code, .choices.sql .choice .sqlc {
  font-family: var(--font-mono); font-size: 13px; line-height: 1.5;
  white-space: pre-wrap; color: var(--ink-900);
}
.choices.compact .choice { padding: 10px 16px; font-size: 16px; }

/* ---------- 두 칼럼 카드 그리드 (개념 정리) ---------- */
.kgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.kcard {
  background: white; border: 1.5px solid var(--ink-200);
  border-top: 4px solid var(--eduwill-yellow); border-radius: 10px; padding: 11px 15px;
}
.kcard.set { border-top-color: var(--ink-1000); }
.kcard .h { font: 800 15px/1.2 var(--font-sans); color: var(--ink-1000); }
.kcard .d { margin-top: 5px; font-size: 13px; line-height: 1.45; color: var(--ink-700); }
.kcard .d b { color: var(--ink-1000); }

/* ---------- 총정리 빈출 포인트 행 ---------- */
.recap { display: flex; flex-direction: column; gap: 9px; }
.recap .item {
  display: flex; align-items: center; gap: 14px;
  background: white; border-radius: 10px; padding: 11px 16px;
  box-shadow: var(--shadow-1); border-left: 6px solid var(--eduwill-yellow);
}
.recap .item .k {
  background: var(--ink-1000); color: var(--eduwill-yellow);
  padding: 3px 11px; border-radius: 4px; font-size: 12px; font-weight: 800; white-space: nowrap;
}
.recap .item .v { font-size: 14.5px; color: var(--ink-800); line-height: 1.4; }
.recap .item .v b { color: var(--ink-1000); font-weight: 800; }