/* ============================================================
   playbook.css — QA 플레이북 전용 컴포넌트
   base.css(공유 디자인 시스템) 위에 얹는 페이지 전용 스타일
   ============================================================ */

/* 의미 색상 토큰 (결함 등급 / 상태 표현) */
:root {
  --sev-critical: #e5484d;
  --sev-critical-bg: rgba(229, 72, 77, 0.12);
  --sev-major: #f76808;
  --sev-major-bg: rgba(247, 104, 8, 0.12);
  --sev-minor: #f5a623;
  --sev-minor-bg: rgba(245, 166, 35, 0.14);
  --sev-trivial: #6b7485;
  --sev-trivial-bg: rgba(107, 116, 133, 0.12);
  --ok: #2f9e44;
  --ok-bg: rgba(47, 158, 68, 0.12);
}

[data-theme="dark"] {
  --sev-critical-bg: rgba(229, 72, 77, 0.18);
  --sev-major-bg: rgba(247, 104, 8, 0.18);
  --sev-minor-bg: rgba(245, 166, 35, 0.18);
  --sev-trivial-bg: rgba(154, 163, 184, 0.16);
  --ok-bg: rgba(47, 158, 68, 0.18);
}

/* ============================================================
   리드 문단 / 섹션 인트로
   ============================================================ */
.lead {
  font-size: 1.02rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 760px;
  margin-top: 16px;
}

.eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

/* ============================================================
   콜아웃 (안내 / 주의 / 원칙)
   ============================================================ */
.callout {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin-top: 24px;
}

.callout--warn { border-left-color: var(--sev-minor); }
.callout--note { border-left-color: var(--color-accent-2); }

.callout-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--color-accent);
  margin-top: 2px;
}

.callout--warn .callout-icon { color: var(--sev-minor); }
.callout--note .callout-icon { color: var(--color-accent-2); }

.callout-icon svg { width: 22px; height: 22px; }

.callout-body {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.callout-body strong { color: var(--color-text); }

/* ============================================================
   워크플로우 타임라인 (ISTQB 기반: 계획·분석·착수·유지보완·보고)
   ============================================================ */
.workflow {
  margin-top: 44px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.flow-step {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 22px;
  padding-bottom: 28px;
}

.flow-step:last-child { padding-bottom: 0; }

/* 세로 연결선 */
.flow-step:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 27px;
  top: 56px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(var(--color-border), var(--color-border));
}

.flow-marker {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
  box-shadow: var(--color-card-shadow);
  z-index: 1;
}

.flow-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--color-card-shadow);
  transition: border-color var(--transition), box-shadow var(--transition), transform 0.18s;
}

.flow-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--color-card-shadow-hover);
  transform: translateY(-2px);
}

.flow-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 6px;
}

.flow-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.flow-title-en {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.flow-summary {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.flow-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-bottom: 16px;
}

.flow-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.flow-list li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--color-accent);
}

/* 단계별 산출물 / 활용 도구 라벨 */
.flow-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
}

.flow-meta-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-right: 2px;
}

.tool-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  background: var(--color-accent-subtle);
  border: 1px solid color-mix(in srgb, var(--color-accent) 35%, transparent);
  color: var(--color-accent);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  transition: background var(--transition);
}

a.tool-pill:hover { background: color-mix(in srgb, var(--color-accent) 18%, transparent); }

/* ============================================================
   문제 → 해결 (Problem / Solution)
   ============================================================ */
.ps-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 44px;
}

.ps-row {
  display: grid;
  grid-template-columns: 1fr 44px 1fr;
  gap: 0;
  align-items: stretch;
}

.ps-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--color-card-shadow);
}

.ps-card--problem { border-top: 3px solid var(--sev-major); }
.ps-card--solution { border-top: 3px solid var(--ok); }

.ps-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.ps-card--problem .ps-tag { background: var(--sev-major-bg); color: var(--sev-major); }
.ps-card--solution .ps-tag { background: var(--ok-bg); color: var(--ok); }

.ps-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.ps-card p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.ps-card .flow-list { margin-top: 12px; margin-bottom: 0; }

.ps-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
}

.ps-arrow svg { width: 22px; height: 22px; }

/* ============================================================
   환경 배지 (모바일 PWA / PC 가상 단말)
   ============================================================ */
.env-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.env-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
}

.env-card h4 {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.env-card h4 svg { width: 19px; height: 19px; color: var(--color-accent); }

.env-card p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ============================================================
   기준 테이블 (결함 심각도 / 우선순위 / 테스트 유형)
   ============================================================ */
.tabs {
  display: flex;
  gap: 8px;
  margin: 36px 0 20px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 8px 18px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  border-radius: 100px;
  font-family: inherit;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.tab-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }

.tab-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp 0.4s ease; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--color-card-shadow);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  background: var(--color-surface);
  min-width: 560px;
}

.spec-table thead th {
  text-align: left;
  padding: 14px 18px;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.spec-table tbody td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  line-height: 1.6;
  vertical-align: top;
}

.spec-table tbody tr:last-child td { border-bottom: none; }
.spec-table tbody tr:hover { background: var(--color-bg-alt); }

.sev-badge {
  display: inline-block;
  padding: 3px 11px;
  border-radius: 5px;
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
}

.sev-badge--critical { background: var(--sev-critical-bg); color: var(--sev-critical); }
.sev-badge--major { background: var(--sev-major-bg); color: var(--sev-major); }
.sev-badge--minor { background: var(--sev-minor-bg); color: var(--sev-minor); }
.sev-badge--trivial { background: var(--sev-trivial-bg); color: var(--sev-trivial); }

.sev-badge--p1 { background: var(--sev-critical-bg); color: var(--sev-critical); }
.sev-badge--p2 { background: var(--sev-major-bg); color: var(--sev-major); }
.sev-badge--p3 { background: var(--sev-minor-bg); color: var(--sev-minor); }
.sev-badge--p4 { background: var(--sev-trivial-bg); color: var(--sev-trivial); }

/* ============================================================
   브랜치 전략 파이프라인 (dev → stg → alpha → prod)
   ============================================================ */
.pipeline {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-top: 44px;
  flex-wrap: wrap;
}

.branch-node {
  flex: 1 1 180px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--color-card-shadow);
  position: relative;
}

.branch-node--active { border-color: var(--color-accent); border-width: 1.5px; }

.branch-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  color: var(--color-text-muted);
  flex: 0 0 auto;
}

.branch-arrow svg { width: 20px; height: 20px; }

.branch-name {
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.branch-role {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.branch-desc {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.branch-flag {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 4px;
  background: var(--ok-bg);
  color: var(--ok);
}

.branch-flag--later {
  background: var(--sev-trivial-bg);
  color: var(--sev-trivial);
}

/* ============================================================
   CI/CD 보안 게이트 (액션 컨테이너)
   ============================================================ */
.gate-flow {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 44px;
}

.gate {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  align-items: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  transition: border-color var(--transition);
}

.gate:hover { border-color: var(--color-accent); }

.gate-num {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.gate-num svg { width: 20px; height: 20px; }

.gate-body h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 5px;
}

.gate-body p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 8px;
}

.gate-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* ============================================================
   원칙 / 협업 (competency-grid 재사용 + 보강)
   ============================================================ */
.principle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 18px;
  margin-top: 44px;
}

/* ============================================================
   반응형
   ============================================================ */
@media (max-width: 768px) {
  .ps-row { grid-template-columns: 1fr; }
  .ps-arrow { padding: 4px 0; transform: rotate(90deg); }
  .pipeline { flex-direction: column; }
  .branch-arrow { transform: rotate(90deg); padding: 6px 0; }
  .flow-step { grid-template-columns: 46px 1fr; gap: 16px; }
  .flow-marker { width: 46px; height: 46px; font-size: 1rem; }
  .flow-step:not(:last-child)::before { left: 22px; top: 46px; }
}

@media (max-width: 480px) {
  .flow-card { padding: 18px; }
  .gate { grid-template-columns: 1fr; }
  .gate-num { margin-bottom: 4px; }
}