/* ============================================================
   Lecture · 운영체제와 프로세스 상태 전이 (4과목 · OS/프로세스) — slide layout extensions
   Builds on /colors_and_type.css and /slides/_slide.css
   ─ 25강 관계대수 lecture.css 계승(obj-grid·flow·step-grid·comp-grid·
     tree-frame+dg-* SVG primitive·cmp-tbl.compact·안전영역 압축값).
   ─ 25강 22강 dg-box/dg-arr/dg-flab + marker(ah·ahy) 그대로 재사용 —
     본 데크의 시그니처 = 프로세스 5상태 전이 다이어그램(상태 5노드·전이선 라벨).
   ─ 코어(_slide.css) 승격 컴포넌트는 재정의하지 않음:
     def-box · metaphor · mnemonic · real · pass-tip
     · cmp-tbl · trap-row · q-source · tbl.compact · callout.compact · choices
   ============================================================ */

/* ---------- 목표 그리드 (학습 목표) — 08·10·25강 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 (08·10·11·25강 .flow 재사용)
   ─ 프로세스 생명주기·문맥 교환 한 줄 흐름·SQL/시스템콜 흐름
   ============================================================ */
.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; }
.flow .arw small { display: block; font-size: 10px; font-weight: 700; opacity: 0.75; text-transform: none; }

/* ============================================================
   SVG diagram primitives — 노드/간선/박스 (22·25강 dg-* 재사용)
   ─ 프로세스 5상태 전이 다이어그램의 상태 박스·전이 화살표·라벨
   ============================================================ */
.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-cap    { fill: var(--ink-500); font: 700 12px var(--font-sans); text-anchor: middle; }

/* 트리/그래프 도식 프레임 */
.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: 290px; 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); }

/* 상태/전이 SVG primitives (22·25강 계승) */
.dg-box   { fill: white; stroke: var(--ink-300); stroke-width: 2; }
.dg-box-d { fill: var(--ink-1000); stroke: var(--ink-1000); }
.dg-box-y { fill: var(--eduwill-yellow); stroke: var(--eduwill-yellow-600); }
.dg-bt    { fill: var(--ink-1000); font: 800 16px var(--font-sans); text-anchor: middle; dominant-baseline: central; }
.dg-bt-w  { fill: white; font: 800 16px var(--font-sans); text-anchor: middle; dominant-baseline: central; }
.dg-bt-s  { fill: var(--ink-500); font: 700 10px var(--font-sans); text-anchor: middle; dominant-baseline: central; }
.dg-arr   { stroke: var(--ink-400); stroke-width: 2.5; fill: none; marker-end: url(#ah); }
.dg-arr-y { stroke: var(--eduwill-yellow-600); stroke-width: 3; fill: none; marker-end: url(#ahy); }
.dg-flab  { fill: var(--ink-700); font: 800 12px var(--font-sans); text-anchor: middle; }
.dg-flab-y{ fill: var(--eduwill-yellow-700); font: 800 12px var(--font-sans); text-anchor: middle; }

/* ============================================================
   단계 카드 그리드 — 상태 카드·문맥 교환 5단계 등 (22·25강 step-grid 계승)
   ============================================================ */
.step-grid { display: grid; gap: 10px; }
.step-grid.c2 { grid-template-columns: 1fr 1fr; }
.step-grid.c3 { grid-template-columns: 1fr 1fr 1fr; }
.step-grid.c5 { grid-template-columns: repeat(5, 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); }

/* ============================================================
   comp-grid — 카드 그리드 (22·25강 계승, 보조)
   ============================================================ */
.comp-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.comp-grid.c2 { grid-template-columns: 1fr 1fr; }
.comp-grid.c4 { grid-template-columns: repeat(4, 1fr); }
.comp-card {
  background: white;
  border: 1.5px solid var(--ink-200);
  border-top: 5px solid var(--ink-1000);
  border-radius: 10px;
  padding: 11px 13px;
}
.comp-card.part { border-top-color: var(--eduwill-yellow); }
.comp-card .hd { display: flex; align-items: baseline; gap: 8px; }
.comp-card .ch { font: 800 22px/1 var(--font-sans); color: var(--eduwill-yellow-700); }
.comp-card .nm { font: 800 14.5px/1.15 var(--font-sans); color: var(--ink-1000); letter-spacing: -0.01em; }
.comp-card .ds { font-size: 11.5px; color: var(--ink-700); line-height: 1.4; margin-top: 6px; }
.comp-card .ds b { color: var(--ink-1000); }

/* ============================================================
   메모리 4영역 적층 막대 — 코드/데이터/힙/스택 (08강 패턴 변형)
   ============================================================ */
.mem-stack { display: flex; flex-direction: column; gap: 5px; }
.mem-row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 12px;
  align-items: center;
  padding: 9px 14px;
  border-radius: 8px;
  background: white;
  border: 1.5px solid var(--ink-200);
}
.mem-row .nm { font: 800 14px/1 var(--font-sans); color: var(--ink-1000); }
.mem-row .nm small { display: block; font-size: 10px; font-weight: 700; color: var(--ink-500); margin-top: 2px; }
.mem-row .ds { font-size: 12.5px; color: var(--ink-700); line-height: 1.4; }
.mem-row .ds b { color: var(--ink-1000); }
.mem-row.y { border-left: 5px solid var(--eduwill-yellow); }
.mem-row.d { border-left: 5px solid var(--ink-1000); }

/* ============================================================
   푸터 안전영역(y≤672) 압축 — 22·25강 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: 23px; 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; }

/* ---------- cmp-tbl 압축 변형 (다축 비교표 안전영역 보존) ---------- */
.cmp-tbl.compact { font-size: 13.5px; }
.cmp-tbl.compact thead th { padding: 8px 14px; font-size: 13px; }
.cmp-tbl.compact tbody td { padding: 7px 14px; }
.cmp-tbl.compact tbody td:first-child { width: 110px; }