/* ============================================================
   Lecture · 통합 구현 — 모듈 구현 & 테스트 (2과목 13강) — slide layout extensions
   Builds on /colors_and_type.css and /slides/_slide.css
   ─ 12강(=11강 계승) lecture.css를 베이스로 복사 후, 8강 EAI 토폴로지 컴포넌트만 추가.
   ─ 코어(_slide.css) 승격 컴포넌트는 재정의하지 않음:
     def-box · metaphor · mnemonic · real · pass-tip
     · cmp-tbl · trap-row · q-source · tbl.compact · callout.compact
   ============================================================ */

/* ---------- 4-objective grid (학습 목표) — 08·10강 패턴 재사용 ---------- */
.obj-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.obj-item {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  align-items: center;
  padding: 16px 20px;
  background: var(--ink-50);
  border: 1.5px solid var(--ink-200);
  border-radius: 12px;
}
.obj-item .badge {
  width: 52px;
  height: 52px;
  background: var(--eduwill-yellow);
  color: var(--ink-1000);
  display: grid;
  place-items: center;
  font: 800 26px/1 var(--font-sans);
  border-radius: 12px;
}
.obj-item h3 { margin: 0; font: 800 18px/1.15 var(--font-sans); color: var(--ink-1000); }
.obj-item p  { margin: 4px 0 0; font-size: 13px; color: var(--ink-700); line-height: 1.4; }

/* ============================================================
   흐름 노드 행 — A → B → C inline 시퀀스 (모단통통가·테스트 4레벨)
   08·10·11강 .flow 재사용
   ============================================================ */
.flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.flow .box {
  padding: 10px 16px;
  border-radius: 10px;
  background: white;
  border: 1.5px solid var(--ink-300);
  font: 700 16px/1.2 var(--font-sans);
  color: var(--ink-900);
  text-align: center;
}
.flow .box.dark { background: var(--ink-1000); color: white; border-color: var(--ink-1000); }
.flow .box.mid  { background: var(--eduwill-yellow); color: var(--ink-1000); border-color: var(--eduwill-yellow); font-weight: 800; }
.flow .box small { display: block; font-size: 11px; font-weight: 600; opacity: 0.7; margin-top: 2px; }
.flow .arw { color: var(--ink-500); font-size: 20px; font-weight: 800; }

/* ============================================================
   SVG diagram primitives — 트리·그래프 노드/간선 (08·10·11강 dg-* 재사용)
   ============================================================ */
.dg-line   { stroke: var(--ink-300); stroke-width: 2; }
.dg-line-y { stroke: var(--eduwill-yellow-600); stroke-width: 2.5; }
.dg-edge   { stroke: var(--ink-400); stroke-width: 2.5; }
.dg-edge-y { stroke: var(--eduwill-yellow-600); stroke-width: 3; }
.dg-node   { fill: var(--ink-1000); }
.dg-node-t { fill: white; font: 800 15px var(--font-sans); text-anchor: middle; dominant-baseline: central; }
.dg-leaf   { fill: var(--eduwill-yellow); stroke: var(--ink-1000); stroke-width: 2; }
.dg-leaf-t { fill: var(--ink-1000); font: 800 15px var(--font-sans); text-anchor: middle; dominant-baseline: central; }
.dg-root   { fill: var(--ink-1000); stroke: var(--eduwill-yellow); stroke-width: 3.5; }
.dg-cap    { fill: var(--ink-500); font: 700 12px var(--font-sans); text-anchor: middle; }
.dg-op     { fill: var(--info-500); }

/* 트리/그래프 도식 프레임 (Fan-In/Fan-Out 트리 재사용) */
.tree-frame {
  background: var(--ink-50);
  border: 1.5px solid var(--ink-200);
  border-radius: 12px;
  padding: 12px;
  display: grid;
  place-items: center;
}
.tree-frame.hi { background: var(--eduwill-yellow-50); border-color: var(--eduwill-yellow); }
.tree-frame svg { width: 100%; height: auto; max-height: 200px; display: block; }
.tree-frame .cap { margin-top: 6px; font-size: 12px; color: var(--ink-500); font-weight: 600; text-align: center; }

/* ---------- utility: small caption ---------- */
.cap { font-size: 12px; color: var(--ink-500); }

/* ============================================================
   ▼▼▼ EAI 4유형 토폴로지 미니 다이어그램 (8강 계승 · 13강 핵심) ▼▼▼
   ─ Point-to-Point · Hub & Spoke · Message Bus · Hybrid
   ─ .topo-card 프레임 + 내부 inline SVG 다이어그램
   ============================================================ */
.topo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.topo-card {
  background: white;
  border: 1.5px solid var(--ink-200);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.topo-card.hi {
  border-color: var(--eduwill-yellow);
  background: var(--eduwill-yellow-50);
}
.topo-card .topo-head {
  display: flex;
  align-items: center;
  gap: 10px;
}
.topo-card .topo-head .ix {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  background: var(--ink-1000);
  color: var(--eduwill-yellow);
  display: grid;
  place-items: center;
  border-radius: 6px;
  font: 800 13px/1 var(--font-sans);
}
.topo-card .topo-head .name {
  font: 800 16px/1.1 var(--font-sans);
  color: var(--ink-1000);
  letter-spacing: -0.01em;
}
.topo-card .diagram {
  height: 92px;
  display: grid;
  place-items: center;
  background: var(--ink-50);
  border-radius: 8px;
}
.topo-card.hi .diagram { background: rgba(255,255,255,0.65); }
.topo-card .diagram svg { width: 100%; height: 100%; }
.topo-card .note {
  font-size: 12px;
  line-height: 1.4;
  color: var(--ink-700);
}
.topo-card .note b { color: var(--ink-1000); }
.topo-card .note .bad { color: var(--err-700); font-weight: 800; }

/* EAI SVG diagram primitives (8강 계승) */
.dg-bus    { stroke: var(--ink-1000); stroke-width: 6; stroke-linecap: round; }
.dg-hub    { fill: var(--eduwill-yellow); stroke: var(--ink-1000); stroke-width: 2; }
.dg-hub-t  { fill: var(--ink-1000); font: 800 11px var(--font-sans); text-anchor: middle; }

/* ---------- 동기/비동기 시그니처 칩 ---------- */
.sig {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
}
.sig.sync  { background: var(--info-50);  color: var(--info-700); }
.sig.async { background: var(--ok-50);     color: var(--ok-700); }

/* ============================================================
   단계 카드 그리드 — 결합도/응집도 단계·통합 5단계 키워드 카드
   (가로 결합용 — 11강 algo-card 결을 계승)
   ============================================================ */
.step-grid { display: grid; gap: 10px; }
.step-grid.c2 { grid-template-columns: 1fr 1fr; }
.step-card {
  background: white;
  border: 1.5px solid var(--ink-200);
  border-radius: 12px;
  border-left: 5px solid var(--eduwill-yellow);
  padding: 12px 16px;
}
.step-card.gray { border-left-color: var(--ink-1000); }
.step-card.info { border-left-color: var(--info-500); }
.step-card .hd { display: flex; align-items: baseline; gap: 10px; }
.step-card .hd .nm { font: 800 16px/1 var(--font-sans); color: var(--ink-1000); }
.step-card .hd .badge2 { margin-left: auto; font: 800 13px/1 var(--font-mono); color: var(--eduwill-yellow-700); }
.step-card .bd { margin-top: 6px; font-size: 13px; line-height: 1.45; color: var(--ink-800); }
.step-card .bd b { color: var(--ink-1000); }

/* ============================================================
   푸터 안전영역(y≤672) 압축 — 13강 데크 전역 (11·12강 검증값 계승)
   _slide.css 코어보다 뒤에 로드되므로 이 데크에만 적용됨.
   ============================================================ */
.slide-content { gap: 22px; }

.def-box { grid-template-columns: 118px 1fr; }
.def-box .term { padding: 14px 10px; }
.def-box .term .abbr { font-size: 25px; letter-spacing: -0.02em; line-height: 1.05; }
.def-box .term .full { font-size: 10px; margin-top: 4px; line-height: 1.25; word-break: keep-all; }
.def-box .body { padding: 14px 20px; }
.def-box .body .label { font-size: 11px; }
.def-box .body .text { font-size: 15.5px; line-height: 1.45; margin-top: 4px; }

.metaphor { padding: 13px 18px; }
.metaphor .icon { width: 38px; height: 38px; font-size: 18px; }
.metaphor .text { font-size: 14.5px; line-height: 1.45; }

.pass-tip, .real, .callout.compact { padding: 12px 18px; }
.pass-tip .text, .real .text { font-size: 14.5px; line-height: 1.45; }
.mnemonic { padding: 13px 20px; }
.mnemonic .phrase { font-size: 18px; }