/* 진행 방식 섹션 — 히어로 카드(네오 브루탈리즘) 톤.
   --bw-p / --bw-r 기본값 1 = 완성 화면. JS(blog-workflow-motion.js)가 스크롤에 따라 0~1로 갱신. */
.blog-workflow {
  --bw-ink: #0d2421;
  --bw-paper: #fffdf8;
  --bw-coral: #d86a60;
  --bw-blue: #6f98c8;
  --bw-teal: #3a9fa7;
  --bw-cream: #f7f2ea;
  padding: 120px 32px 112px;
  color: var(--bw-ink);
  background: transparent;
  overflow: clip;
}
.blog-workflow .bw-wrap { max-width: 1240px; margin: 0 auto; }

/* ── 스크롤 진행도 헬퍼 ── */
.blog-workflow [data-bw-reveal] {
  --bw-r: 1;
  opacity: var(--bw-r);
  transform: translateY(calc((1 - var(--bw-r)) * 28px));
}
.blog-workflow [data-bw-step] {
  --bw-p: 1;
  --bw-in: clamp(0, var(--bw-p) / .25, 1);
  --bw-fan: clamp(0, (var(--bw-p) - .2) / .4, 1);
  --bw-q: clamp(0, (var(--bw-p) - .5) / .3, 1);
  --bw-hl: clamp(0, (var(--bw-p) - .35) / .25, 1);
  --bw-o1: clamp(0, (var(--bw-p) - .45) / .15, 1);
  --bw-o2: clamp(0, (var(--bw-p) - .55) / .15, 1);
  --bw-o3: clamp(0, (var(--bw-p) - .65) / .15, 1);
  --bw-pub: clamp(0, (var(--bw-p) - .78) / .18, 1);
  --bw-link: clamp(0, (var(--bw-p) - .6) / .3, 1);
}

/* ── 헤더 ── */
.blog-workflow .bw-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 470px);
  align-items: end;
  gap: 48px;
  margin-bottom: 40px;
}
.blog-workflow .bw-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  padding: 7px 14px;
  border: 2px solid var(--bw-ink);
  border-radius: 999px;
  background: var(--bw-paper);
  box-shadow: 3px 3px 0 var(--bw-ink);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
}
.blog-workflow .bw-eyebrow > span { width: 8px; height: 8px; border-radius: 50%; background: var(--bw-coral); }
.blog-workflow h2 {
  margin: 0;
  font-family: var(--font-body, sans-serif);
  font-size: clamp(32px, 3.6vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.05em;
  word-break: keep-all;
}
.blog-workflow h2 em { font-style: normal; color: var(--bw-coral); }
.blog-workflow .bw-lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: #4a5852;
  word-break: keep-all;
}
.blog-workflow .bw-lead strong { color: var(--bw-ink); font-weight: 700; }
.blog-workflow .bw-sample-label {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-bottom: 28px;
  font-size: 14px;
  font-weight: 700;
}
.blog-workflow .bw-sample-label > span {
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bw-ink);
  color: var(--bw-paper);
  font-size: 12px;
  font-weight: 600;
}

/* ── 단계 카드 ── */
.blog-workflow .bw-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 56px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.blog-workflow .bw-step {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px 22px 28px;
  border: 2px solid var(--bw-ink);
  border-radius: 24px;
  color: #fff;
  box-shadow: 6px 6px 0 var(--bw-ink);
  opacity: var(--bw-in);
  transform: translateY(calc((1 - var(--bw-in)) * 56px));
  transition: box-shadow .4s cubic-bezier(.16, 1, .3, 1), translate .4s cubic-bezier(.16, 1, .3, 1);
}
.blog-workflow .bw-step:hover { translate: 0 -8px; box-shadow: 12px 12px 0 var(--bw-ink); }
.blog-workflow .bw-step-material { background: var(--bw-coral); }
.blog-workflow .bw-step-draft { background: var(--bw-blue); }
.blog-workflow .bw-step-review { background: var(--bw-teal); }
.blog-workflow .bw-step-heading { margin-bottom: 18px; }
.blog-workflow .bw-number {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 10px;
  border: 1.5px solid #fff;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
}
.blog-workflow h3 { margin: 0; font-size: 21px; font-weight: 800; line-height: 1.35; letter-spacing: -.04em; word-break: keep-all; }
.blog-workflow .bw-step-copy { margin: 20px 0 0; font-size: 15px; line-height: 1.75; letter-spacing: -.02em; word-break: keep-all; color: #fff; }

/* 카드 사이 연결 화살표 */
.blog-workflow .bw-link {
  position: absolute;
  top: 50%;
  right: -54px;
  width: 52px;
  height: 22px;
  fill: none;
  stroke: var(--bw-ink);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: calc(1 - var(--bw-link));
  pointer-events: none;
}

/* ── 일러스트 패널 공통 ── */
.blog-workflow .bw-art {
  position: relative;
  height: 300px;
  padding: 16px;
  border: 2px solid var(--bw-ink);
  border-radius: 16px;
  background: var(--bw-cream);
  color: var(--bw-ink);
  overflow: hidden;
}
.blog-workflow .bw-document-label { display: flex; justify-content: space-between; gap: 8px; font-size: 11px; font-weight: 600; }
.blog-workflow .bw-document-label > span:last-child { color: #7a857c; font-size: 10px; letter-spacing: .08em; }

/* 01 — 사진이 부채꼴로 펼쳐지고 질문 메모가 붙음 */
.blog-workflow .bw-photo-stack { position: relative; height: 170px; }
.blog-workflow .bw-photo {
  position: absolute;
  width: 62%;
  padding: 6px 6px 0;
  background: var(--bw-paper);
  border: 1.5px solid var(--bw-ink);
  box-shadow: 3px 3px 0 #0d242133;
}
.blog-workflow .bw-photo svg { display: block; width: 100%; height: auto; }
.blog-workflow .bw-photo span { display: block; padding: 4px 0 5px; font-size: 11px; font-weight: 700; text-align: center; }
.blog-workflow .bw-photo-day {
  top: 4px;
  left: 18%;
  transform: translateX(calc(var(--bw-fan) * -26%)) rotate(calc(var(--bw-fan) * -8deg - 1deg));
}
.blog-workflow .bw-photo-night {
  top: 18px;
  left: 20%;
  transform: translate(calc(var(--bw-fan) * 30%), calc(var(--bw-fan) * 10px)) rotate(calc(var(--bw-fan) * 8deg + 1deg));
}
.blog-workflow .bw-question {
  position: absolute;
  right: 16px;
  bottom: 16px;
  left: 16px;
  padding: 11px 14px;
  border: 1.5px solid var(--bw-ink);
  border-left: 5px solid var(--bw-coral);
  background: var(--bw-paper);
  box-shadow: 3px 3px 0 var(--bw-ink);
  opacity: var(--bw-q);
  transform: translateY(calc((1 - var(--bw-q)) * 24px)) rotate(calc((1 - var(--bw-q)) * -3deg));
}
.blog-workflow .bw-question > span { display: block; margin-bottom: 4px; color: #6b746b; font-size: 11px; }
.blog-workflow .bw-question strong { display: block; font-size: 14px; font-weight: 800; line-height: 1.5; letter-spacing: -.03em; }

/* 02 — 형광펜이 그어지고 목차가 한 줄씩 써짐 */
.blog-workflow .bw-draft-sheet {
  height: 100%;
  padding: 16px 16px 0;
  border: 1.5px solid var(--bw-ink);
  background: var(--bw-paper);
  box-shadow: 4px 4px 0 #0d242133;
  transform: rotate(-1.5deg);
}
.blog-workflow .bw-draft-title { margin: 14px 0 16px; font-size: 22px; font-weight: 800; line-height: 1.32; letter-spacing: -.045em; }
.blog-workflow .bw-draft-title mark {
  color: inherit;
  background: linear-gradient(transparent 56%, #f2c9a8 56%) no-repeat 0 0 / calc(var(--bw-hl) * 100%) 100%;
}
.blog-workflow .bw-outline { margin: 0; padding: 0; list-style: none; }
.blog-workflow .bw-outline li { display: flex; align-items: baseline; gap: 9px; padding: 6px 0; border-top: 1px solid #e0ddd2; font-size: 12px; }
.blog-workflow .bw-outline li > span { color: var(--bw-blue); font-size: 10px; font-weight: 800; }
.blog-workflow .bw-outline li:nth-child(1) { opacity: var(--bw-o1); transform: translateX(calc((1 - var(--bw-o1)) * -14px)); }
.blog-workflow .bw-outline li:nth-child(2) { opacity: var(--bw-o2); transform: translateX(calc((1 - var(--bw-o2)) * -14px)); }
.blog-workflow .bw-outline li:nth-child(3) { opacity: var(--bw-o3); transform: translateX(calc((1 - var(--bw-o3)) * -14px)); }
.blog-workflow .bw-editor-note {
  position: absolute;
  right: 14px;
  bottom: 16px;
  padding: 7px 12px;
  border: 1.5px solid var(--bw-ink);
  background: #e9c776;
  box-shadow: 2px 2px 0 var(--bw-ink);
  font-size: 12px;
  font-weight: 800;
  transform: rotate(4deg) scale(calc(.6 + var(--bw-pub) * .4));
  opacity: var(--bw-pub);
}

/* 03 — 체크가 순서대로 찍히고 발행 버튼이 눌림 */
.blog-workflow .bw-check-sheet { height: 100%; padding: 16px 14px 14px; border: 1.5px solid var(--bw-ink); background: var(--bw-paper); }
.blog-workflow .bw-checklist { margin: 10px 0 14px; padding: 0; list-style: none; }
.blog-workflow .bw-checklist li { display: flex; gap: 11px; align-items: center; padding: 9px 0; border-bottom: 1px solid #e5e3d8; }
.blog-workflow .bw-check {
  display: grid;
  flex: 0 0 24px;
  height: 24px;
  place-items: center;
  border: 1.5px solid var(--bw-ink);
  border-radius: 6px;
  background: #fff;
  color: transparent;
  font-size: 14px;
  font-weight: 900;
}
.blog-workflow .bw-checklist li:nth-child(1) .bw-check { --c: var(--bw-o1); }
.blog-workflow .bw-checklist li:nth-child(2) .bw-check { --c: var(--bw-o2); }
.blog-workflow .bw-checklist li:nth-child(3) .bw-check { --c: var(--bw-o3); }
.blog-workflow .bw-check { background: color-mix(in srgb, var(--bw-teal) calc(var(--c) * 100%), #fff); color: rgb(255 255 255 / var(--c)); transform: scale(calc(.85 + var(--c) * .15)); }
.blog-workflow .bw-checklist strong { display: block; margin-bottom: 1px; font-size: 13px; font-weight: 800; }
.blog-workflow .bw-checklist div > span { display: block; font-size: 11px; color: #626b60; }
.blog-workflow .bw-publish-label {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
  padding: 10px;
  border-radius: 10px;
  background: var(--bw-ink);
  color: var(--bw-paper);
  font-size: 13px;
  font-weight: 800;
  opacity: calc(.35 + var(--bw-pub) * .65);
  transform: translateY(calc((1 - var(--bw-pub)) * 10px));
}

/* 줄바꿈 보조 (모바일 전용) */
.blog-workflow .bw-mobile-break { display: none; }

/* ── 반응형 ── */
@media (max-width: 1100px) and (min-width: 961px) {
  .blog-workflow .bw-steps { gap: 40px; }
  .blog-workflow .bw-link { right: -40px; width: 38px; }
  .blog-workflow .bw-step { padding: 22px 16px 24px; }
  .blog-workflow h3 { font-size: 18px; }
}
@media (max-width: 960px) {
  .blog-workflow { padding: 80px 28px; }
  .blog-workflow .bw-heading { grid-template-columns: 1fr; gap: 18px; margin-bottom: 28px; }
  .blog-workflow .bw-steps { grid-template-columns: 1fr; gap: 28px; max-width: 560px; margin: 0 auto; }
  .blog-workflow .bw-link { display: none; }
}
@media (max-width: 600px) {
  .blog-workflow { padding: 64px 20px; }
  .blog-workflow h2 { font-size: clamp(28px, 8vw, 38px); }
  .blog-workflow .bw-lead { font-size: 15px; }
  .blog-workflow .bw-sample-label { font-size: 13px; }
  .blog-workflow .bw-step { padding: 20px 16px 22px; border-radius: 20px; }
  .blog-workflow h3 { font-size: 19px; }
  .blog-workflow .bw-art { height: 290px; }
  .blog-workflow .bw-mobile-break { display: initial; }
}
/* ── 최신: CSS Scroll-driven Animations (브라우저 합성 스레드에서 스크롤에 직결) ──
   @property로 숫자 타입 등록 → 키프레임으로 진행도 자체를 보간, 파생 변수는 자동 재계산.
   JS가 조건(지원 브라우저 + 문서 스크롤러 직속)을 확인해 .bw-native를 붙일 때만 활성.
   아니면 blog-workflow-motion.js가 같은 변수를 갱신. 봇·모션 축소 사용자는 완성 화면. */
@property --bw-p { syntax: '<number>'; inherits: true; initial-value: 1; }
@property --bw-r { syntax: '<number>'; inherits: true; initial-value: 1; }
@keyframes bw-progress { from { --bw-p: 0; } to { --bw-p: 1; } }
@keyframes bw-reveal { from { --bw-r: 0; } to { --bw-r: 1; } }
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .blog-workflow.bw-native [data-bw-step] {
      animation: bw-progress linear both;
      animation-timeline: view();
      animation-range: entry 5% cover 55%;
    }
    @media (min-width: 961px) {
      .blog-workflow.bw-native .bw-step-draft { animation-range: entry 25% cover 62%; }
      .blog-workflow.bw-native .bw-step-review { animation-range: entry 45% cover 70%; }
    }
    .blog-workflow.bw-native [data-bw-reveal] {
      animation: bw-reveal linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 100%;
    }
  }
}
@media (prefers-reduced-motion: reduce) {
  .blog-workflow .bw-step { transition: none; }
}