/*
 * 19-cobot-memory.css
 * 08섹션 Cobot 프로젝트: memory 시각 lose널 + 코드 플레이바
 * 이미지 reference: 우측 lose널(memory structure 분석) + bottom 플레이바
 */

/* ── 코드 분할 lose널: 우측 폭 확장 ── */
.cp-code-split--mem {
  position: relative;
  grid-template-columns: minmax(0, var(--cp-cobot-code-width, 1.42fr)) 12px minmax(0, 1fr);
  align-items: stretch;
}

.cp-code-split--mem > .cp-code-editor,
.cp-code-split--mem > .cp-mem-right-panel {
  min-width: 0;
}

.cp-cobot-link-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 8;
  overflow: visible;
}

.cp-code-split--mem.is-resizing .cp-cobot-link-layer,
.cp-code-split--mem.is-resizing .cp-mem-svg-layer {
  visibility: hidden;
}

.cp-cobot-link {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.78;
}

.cp-cobot-link--source {
  color: #38bdf8;
}

.cp-cobot-link--ref {
  color: #8b5cf6;
}

.cp-cobot-link-node {
  fill: currentColor;
  stroke: rgba(0, 0, 0, 0.22);
  stroke-width: 1;
}

/* ── 우측 memory lose널 (스크롤) ── */
.cp-mem-right-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  padding: 12px 10px;
  background: var(--color-bg-card);
  border-left: 1px solid var(--color-border-main);
  font-family: var(--font-sans);
  scrollbar-width: thin;
}

.cp-split-resize-handle {
  cursor: col-resize;
  background: transparent;
  position: relative;
  z-index: 9;
  overflow: visible;
}

.cp-split-resize-handle::after {
  content: '⋮';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 22px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-tertiary);
  font-size: 18px;
  line-height: 1;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  box-shadow: inset 0 0 0 1px var(--color-border-main);
  pointer-events: none;
}

.cp-split-resize-handle:hover::after,
.cp-split-resize-handle.active::after {
  color: var(--color-brand);
  box-shadow: inset 0 0 0 1px var(--color-brand), 0 0 0 1px rgba(34, 211, 238, 0.12);
}

/* ── concept + 힌트 description 박스 ── */
.cp-mem-concept {
  border: 1px solid var(--color-border-main);
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}

.cp-mem-concept-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 11px;
  background: var(--color-bg-panel);
  border-bottom: 1px solid var(--color-border-main);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-primary);
}

.cp-mem-concept-body {
  padding: 9px 11px;
  font-size: 11.5px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  background: var(--color-bg-card);
}

/* ── memory structure 분석 섹션 ── */
.cp-mem-analysis {
  border: 1px solid var(--color-border-main);
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}

.cp-mem-analysis-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 11px;
  background: var(--color-bg-panel);
  border-bottom: 1px solid var(--color-border-main);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-primary);
}

/* 테이블 래퍼: stack 아래 heap을 세로로 배치해 좁은 면에서도 폭을 확 */
.cp-mem-tables-row {
  display: flex;
  flex-direction: column;
  gap: 48px;
  padding: 12px 34px 18px;
  position: relative;
  overflow-x: hidden;
}

/* SVG overlay (살표) */
.cp-mem-svg-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: visible;
  z-index: 2;
}

/* 개Stars 테이블 래퍼 */
.cp-mem-tbl-wrap {
  display: flex;
  flex-direction: column;
  min-width: 0;
  width: 100%;
  flex: 0 0 auto;
  background: var(--color-bg-card);
  box-shadow: 0 0 0 1px var(--color-border-main);
  position: relative;
}

.cp-mem-tbl-wrap + .cp-mem-tbl-wrap {
  margin-left: 0;
  margin-top: 16px;
}

.cp-mem-tbl-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 9pt;
  font-weight: 700;
  padding: 4px 6px;
  border-radius: 4px 4px 0 0;
  letter-spacing: 0.04em;
  white-space: nowrap;
  font-family: var(--font-sans);
}

.cp-mem-tbl-label--stack {
  background: color-mix(in srgb, var(--color-brand) 15%, transparent);
  color: var(--color-brand);
}

.cp-mem-tbl-label--heap {
  background: color-mix(in srgb, #8b5cf6 15%, transparent);
  color: #a78bfa;
}

/* 슬라이스/리스트는 heap 테이블 안에 인라인 표시 (Stars도 테이블 None) */

/* memory 테이블 */
.cp-mem-tbl {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-sans);
  font-size: 9pt;
  border: 0;
  border-radius: 0;
  overflow: hidden;
  table-layout: fixed;
}

.cp-mem-tbl thead th {
  background: var(--color-bg-panel);
  color: var(--color-text-secondary);
  font-size: 9pt;
  font-weight: 700;
  padding: 4px 5px;
  text-align: left;
  border-bottom: 1px solid var(--color-border-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: var(--font-sans);
}

.cp-mem-tbl tbody td,
.cp-mem-tbl thead th {
  padding: 4px 5px;
  border-bottom: 1px solid color-mix(in srgb, var(--color-border-main) 50%, transparent);
  vertical-align: middle;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
  overflow: visible;
  font-family: var(--font-sans);
  /* td는 stacking context 형성 안 함 → 자식 요소(.cp-mem-port, .cp-mem-cell-text)들이 부모(.cp-mem-tables-row) 기준으로 z-index 비교됨 */
  position: relative;
}

/* message 행은 background 투명 — 살표가 그 위로 지나가는 게 이도록 */
.cp-mem-tbl tbody td {
  background: transparent;
}

.cp-mem-port {
  width: 10px;
  height: 10px;
  min-width: 10px;
  min-height: 10px;
  flex: none;            /* flex 셀(col-val) 안에서 줄어들지 않도록 고정 */
  display: inline-block;
  position: relative;
  z-index: 1;            /* 살표 SVG(z=2) 아래 — 살촉이 마커 위에 이도록 */
  vertical-align: middle;
  border-radius: 999px;
  margin-right: 6px;
  box-shadow: 0 0 0 2px color-mix(in srgb, currentColor 18%, transparent);
  /* 자석 부착점 안정: transform/transition None → getBoundingClientRect 항상 정확 */
}

/* 셀 텍스트는 SVG 위 — 살표가 텍스트 뒤로 지나가는 효과 */
.cp-mem-cell-text,
.cp-mem-value-text,
.cp-mem-heap-id,
.cp-mem-list-cell {
  position: relative;
  z-index: 3;
}

.cp-mem-port--code {
  color: #22d3ee;
  background: #22d3ee;
}

.cp-mem-port--stack-ref,
.cp-mem-port--heap {
  color: #8b5cf6;
  background: #8b5cf6;
}

.cp-mem-tbl--stack .col-name,
.cp-mem-tbl--stack .col-val,
.cp-mem-tbl--heap .cp-mem-obj-label-row td {
  overflow: visible;
}

.cp-mem-tbl tbody tr:last-child td {
  border-bottom: none;
}

.cp-mem-tbl tbody tr:hover td {
  background: var(--color-bg-hover);
}

/* stack 테이블 컬럼 색상 */
.cp-mem-tbl--stack .col-name {
  color: var(--color-brand);
  font-weight: 700;
  font-size: 9pt;
}

.cp-mem-tbl--stack .col-val {
  color: #fb923c;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 5px;
  min-width: 0;
}

.cp-mem-value-text {
  min-width: 0;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
  line-height: 1.25;
}

.cp-mem-tbl--stack .col-ref {
  color: var(--color-text-tertiary);
  font-size: 9pt;
}

.cp-mem-tbl--stack .col-val--ref {
  color: #a78bfa;
  font-style: italic;
}

/* heap 테이블 */
.cp-mem-tbl--heap .cp-mem-obj-label-row td {
  background: color-mix(in srgb, #8b5cf6 10%, var(--color-bg-panel));
  color: #c4b5fd;
  font-weight: 800;
  font-size: 9pt;
  padding: 4px 5px 3px;
  border-bottom: 1px solid color-mix(in srgb, #8b5cf6 25%, transparent);
}

.cp-mem-tbl--heap .col-name {
  color: var(--color-text-secondary);
  font-size: 9pt;
}

.cp-mem-tbl--heap .col-val {
  color: #f87171;
  font-weight: 700;
}

.cp-mem-tbl--heap .col-val--num {
  color: #fb923c;
}

.cp-mem-tbl--heap .col-ref-ptr {
  color: #60a5fa;
  font-style: italic;
  font-size: 9pt;
}

.cp-mem-tbl--heap .col-desc {
  color: var(--color-text-tertiary);
  font-size: 9.5px;
}

/* 슬라이스 테이블 */
.cp-mem-tbl--slice .col-idx {
  color: var(--color-text-tertiary);
  font-size: 10px;
  text-align: center;
}

.cp-mem-tbl--slice .col-val {
  color: #fb923c;
  font-weight: 700;
  text-align: center;
}

/* 행 진입/이탈 애니메이션 */
.cp-mem-tbl tbody tr.is-new {
  animation: cpMemRowEnter 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.cp-mem-tbl tbody tr.is-changed {
  animation: cpMemRowChange 0.4s ease both;
}

@keyframes cpMemRowEnter {
  from {
    opacity: 0;
    background: color-mix(in srgb, var(--color-brand) 20%, transparent);
  }
  to {
    opacity: 1;
    background: transparent;
  }
}

@keyframes cpMemRowChange {
  0%   { background: color-mix(in srgb, #f59e0b 22%, transparent); }
  100% { background: transparent; }
}

/* heap 테이블 ID badge */
.cp-mem-heap-id {
  font-size: 9px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: #a78bfa;
  background: color-mix(in srgb, #8b5cf6 18%, transparent);
  padding: 1px 4px;
  border-radius: 3px;
  margin-right: 4px;
}

/* heap 테이블 리스트 인라인 행 */
.cp-mem-list-row {
  padding: 5px 6px !important;
}

.cp-mem-list-cell {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  margin: 1px 2px;
  vertical-align: top;
}

.cp-mem-list-idx {
  font-size: 9pt;
  color: var(--color-text-tertiary);
  font-family: var(--font-sans);
}

.cp-mem-list-val {
  font-size: 9pt;
  font-weight: 700;
  color: #fb923c;
  font-family: var(--font-sans);
  background: color-mix(in srgb, #fb923c 12%, transparent);
  border: 1px solid color-mix(in srgb, #fb923c 25%, transparent);
  border-radius: 3px;
  padding: 1px 5px;
}

/* 빈 셀 */
.cp-mem-empty-cell {
  padding: 10px 8px !important;
  text-align: center;
  font-size: 9pt;
  color: var(--color-text-tertiary);
  font-style: italic;
}

/* stack만 사용 Notice */
.cp-mem-stack-only {
  padding: 10px 12px;
  text-align: center;
  font-size: 9pt;
  color: var(--color-text-tertiary);
  font-style: italic;
}

/* SVG 살표 스타일 */
.cp-mem-arrow-path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.62;
}

.cp-mem-arrow-path--animated {
  stroke-dasharray: none;
  stroke-dashoffset: 0;
  animation: none;
}

@keyframes cpMemArrowReveal {
  to { stroke-dashoffset: 0; }
}

/* ── 스텝 진행 도트 (우측 lose널 내) ── */
.cp-mem-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 4px 0;
  flex-shrink: 0;
}

.cp-mem-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-border-main);
  transition: all 0.22s;
  cursor: pointer;
}

.cp-mem-dot.is-active {
  width: 18px;
  border-radius: 3px;
  background: var(--color-brand);
}

.cp-mem-dot.is-done {
  background: color-mix(in srgb, var(--color-brand) 45%, transparent);
}

/* ── 코드 플레이바 (bottom, 이미지와 동일 스타일) ── */
.cp-hint-playbar {
  border-top: 1px solid var(--color-border-main);
  background: var(--color-bg-panel);
  flex-shrink: 0;
}

.cp-hint-playbar-controls {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 10px;
  min-width: 0;
}

.cp-pb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  min-width: 30px;
  height: 30px;
  padding: 0;
  border: 1px solid var(--color-border-main);
  border-radius: 6px;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s;
  font-family: inherit;
}

.cp-pb-btn:hover:not(:disabled) {
  border-color: var(--color-brand);
  color: var(--color-brand);
  background: color-mix(in srgb, var(--color-brand) 8%, transparent);
}

.cp-pb-btn:disabled {
  opacity: 0.32;
  cursor: not-allowed;
}

.cp-pb-btn--play {
  background: var(--color-brand);
  color: #000;
  border-color: var(--color-brand);
  font-weight: 800;
  width: 42px;
  min-width: 42px;
}

.cp-pb-btn--play:hover:not(:disabled) {
  background: color-mix(in srgb, var(--color-brand) 85%, #fff);
  color: #000;
}

.cp-pb-btn--play.is-playing {
  background: color-mix(in srgb, var(--color-brand) 70%, #000);
}

.cp-pb-stat {
  flex: 0 1 128px;
  min-width: 92px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  padding: 0 4px;
  overflow: hidden;
}

.cp-pb-stat-step {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-primary);
}

.cp-pb-stat-name {
  font-size: 10px;
  color: var(--color-text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* step 레이블 도트 바 (이미지 bottom) */
.cp-hint-step-dots {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 2px;
  flex: 1 1 auto;
  min-width: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.cp-hint-step-dots::-webkit-scrollbar { display: none; }

.cp-step-dot-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  cursor: pointer;
  flex-shrink: 0;
  min-width: 28px;
  max-width: 28px;
}

.cp-step-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 800;
  border: 1.5px solid var(--color-border-main);
  background: transparent;
  color: var(--color-text-tertiary);
  transition: all 0.22s;
}

.cp-step-dot-item.is-active .cp-step-dot {
  border-color: var(--color-brand);
  background: var(--color-brand);
  color: #000;
  box-shadow: 0 0 10px color-mix(in srgb, var(--color-brand) 45%, transparent);
}

.cp-step-dot-item.is-done .cp-step-dot {
  border-color: color-mix(in srgb, var(--color-brand) 50%, transparent);
  background: color-mix(in srgb, var(--color-brand) 20%, transparent);
  color: var(--color-brand);
}

.cp-step-dot-label {
  display: none;
}

.cp-step-dot-item.is-active .cp-step-dot-label {
  color: var(--color-brand);
  font-weight: 700;
}

/* ── 라이트 모드 ── */
[data-theme="light"] .cp-mem-tbl--stack .col-name { color: #0d9488; }
[data-theme="light"] .cp-mem-tbl--heap .col-val   { color: #dc2626; }
[data-theme="light"] .cp-mem-tbl--heap .col-val--num { color: #d97706; }
[data-theme="light"] .cp-mem-tbl thead th { background: #f8fafc; }

/* ── responsive ── */
@media (max-width: 860px) {
  .cp-code-split--mem {
    grid-template-columns: 1fr;
  }
  .cp-mem-right-panel {
    border-left: none;
    border-top: 1px solid var(--color-border-main);
    max-height: 400px;
  }
  .cp-mem-tables-row {
    /* 우측 18px: 라색 stack→heap 살표 회랑 폭 확 */
    padding: 8px 18px 12px 10px;
  }
}

@media (max-width: 980px) {
  .cp-mem-right-panel {
    padding: 8px;
  }

  .cp-mem-tables-row {
    /* 우측 20px: 회랑(routeX) 진입 공간 + GUTTER_PAD 14px 안전 마진 */
    padding: 8px 20px 12px 12px;
  }
}

/* ─────────────────────────────────────────────────────────
 * memory 드로어 toggle (Progressive Disclosure)
 * - Lv5(memory 섹션) 미만 page에서는 default 닫힘 → 가독성 우선
 * - 닫힘 Status: 우측에 아이콘 1개만(폭 ~44px)
 * - 클릭 시: 우→좌 슬라이드로 lose널 등장
 * ───────────────────────────────────────────────────────── */
.cp-code-split--mem {
  transition: grid-template-columns 0.32s cubic-bezier(.2,.8,.3,1);
}

/* toggle button — 항상 lose널 우상단에 sticky로 고정, 닫힘 Status에선 유일하게 이는 요소 */
.cp-mem-toggle-btn {
  position: sticky;
  top: 4px;
  align-self: flex-end;
  z-index: 12;
  width: 32px;
  height: 32px;
  margin: 0 0 6px auto;
  border-radius: 8px;
  border: 1px solid var(--color-border-main);
  background: var(--color-bg-card);
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.18s ease, color 0.18s ease, transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.cp-mem-toggle-icon {
  display: block;
  line-height: 1;
}
.cp-mem-toggle-btn:hover {
  background: color-mix(in srgb, var(--color-brand) 12%, var(--color-bg-card));
  color: var(--color-brand);
  box-shadow: 0 2px 6px rgba(34, 211, 238, 0.18);
}
.cp-mem-toggle-btn:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
}

/* 펼침 Status(default) — 살표가 우측을 향해 "Close" 의미 */
.cp-code-split--mem[data-cp-mem-er="open"] .cp-mem-toggle-btn::before {
  content: none;
}

/* 접힘 Status — 그리드 컬럼을 좁힘, 리사이즈 핸들 hidden */
.cp-code-split--mem[data-cp-mem-er="collapsed"] {
  grid-template-columns: minmax(0, 1fr) 0 44px !important;
}
.cp-code-split--mem[data-cp-mem-er="collapsed"] > .cp-split-resize-handle {
  display: none;
}
.cp-code-split--mem[data-cp-mem-er="collapsed"] > .cp-mem-right-panel {
  box-sizing: border-box;
  min-width: 44px;
  padding: 6px 4px;
  overflow: hidden;
  border-left: 1px dashed var(--color-border-main);
  background: color-mix(in srgb, var(--color-text-primary) 3%, transparent);
}
/* 접힘 시 toggle button 외 모든 자식 hidden */
.cp-code-split--mem[data-cp-mem-er="collapsed"] > .cp-mem-right-panel > *:not(.cp-mem-toggle-btn) {
  display: none !important;
}
.cp-code-split--mem[data-cp-mem-er="collapsed"] .cp-mem-toggle-btn {
  margin: 0 auto;
  align-self: center;
}
.cp-code-split--mem[data-cp-mem-er="collapsed"] .cp-mem-toggle-btn::before {
  content: none;
}
/* 접힘 시 SVG 살표 레이어도 함께 가림 (코드영역에 침범 방지) */
.cp-code-split--mem[data-cp-mem-er="collapsed"] .cp-cobot-link-layer,
.cp-code-split--mem[data-cp-mem-er="collapsed"] .cp-mem-svg-layer {
  display: none;
}

/* mobile: 좌우 그리드가 너질 수 있어 수적 Processing — 펼침은 정상, 접힘 시 lose널 자체 hidden */
@media (max-width: 720px) {
  .cp-code-split--mem[data-cp-mem-er="collapsed"] {
    grid-template-columns: 1fr 0 36px !important;
  }
  .cp-mem-toggle-btn {
    width: 28px; height: 28px; font-size: 14px;
  }
}

/* 사용자 모션 감수성: 슬라이드 비활성 */
@media (prefers-reduced-motion: reduce) {
  .cp-code-split--mem { transition: none !important; }
}