/* ================================================
   WORFLOGY — UI Components & Page Styles (eduContextOn)
   ================================================ */

/* ── Typography & Section Components ── */
.section-label {
  display: inline-block;
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-label);
  font-weight: var(--fw-label);
  letter-spacing: var(--ls-label);
  line-height: var(--lh-label);
  color: var(--ink);
  margin-bottom: 12px;
  position: relative;
  padding-left: 16px;
  opacity: 0.6;
}
.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--ink);
  opacity: 0.5;
}

.section-title {
  font-family: var(--font-serif-ko);
  font-size: var(--fs-h3);
  font-weight: var(--fw-h3);
  line-height: var(--lh-h3);
  color: var(--text);
  margin-bottom: 28px;
  letter-spacing: var(--ls-h3);
  text-wrap: balance;
}
.section-title + .section-desc {
  margin-top: -16px;
}
.section-title .em { color: var(--ink); }

.section-desc {
  font-family: var(--font-body);
  font-size: var(--fs-body-sub);
  color: var(--text-muted);
  max-width: 1000px;
  line-height: var(--lh-body-sub);
  margin-bottom: 32px;
}

/* 유틸리티: 마지막 요소 마진 제거 */
.hero-content > *:last-child,
.section > *:last-child,
.page-header > *:last-child,
.project-hero > *:last-child,
.graph-section > *:last-child,
.gallery > *:last-child,
.features > *:last-child {
  margin-bottom: 0 !important;
}

/* ── Hero (Landing) ── */
.hero {
  display: flex;
  align-items: flex-start;
  padding: 52px 64px 56px;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

/* 배경 – 정체성 아이콘 (헥사고날 지식 그래프) */
.hero-bg-icon {
  position: absolute;
  right: -50px;
  top: 50%;
  transform: translateY(-50%);
  width: 420px;
  height: 420px;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  opacity: 0.55;
}

/* 배경 – Sand warm gradient */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    118deg,
    rgba(245,240,232,0.0) 0%,
    rgba(245,240,232,0.45) 60%,
    rgba(232,97,58,0.04) 100%
  );
  pointer-events: none;
  z-index: 0;
}

.hero-content { max-width: 580px; position: relative; z-index: 1; }

/* 히어로 배지 */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 14px 5px 10px;
  background: rgba(26,31,54,0.07);
  color: var(--ink);
  border-radius: var(--r-xs);
  font-family: var(--font-sans-en);
  font-size: var(--fs-badge);
  font-weight: 600;
  letter-spacing: 0.3px;
  margin-bottom: 20px;
  border: 1px solid rgba(26,31,54,0.12);
}
.hero-badge svg { width: 8px; height: 8px; }

/* 히어로 타이틀 – DM Serif Display (EN 부분) + Noto Serif KR (KO 부분) */
.hero-title {
  font-family: var(--font-serif-ko);
  font-size: var(--fs-h1);
  font-weight: var(--fw-h1);
  line-height: var(--lh-h1);
  letter-spacing: var(--ls-h1);
  color: var(--text);
  margin-bottom: 22px;
  text-wrap: balance;
}
.hero-title .primary { color: var(--ink); }
.hero-title .accent {
  color: var(--coral);
  font-style: italic;
}

.hero-sub {
  font-family: var(--font-body);
  font-size: var(--fs-body-sub);
  color: var(--text-muted);
  line-height: var(--lh-body-sub);
  margin-bottom: 36px;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--r-xs);
  font-family: var(--font-sans-en);
  font-size: var(--fs-ui);
  font-weight: var(--fw-ui);
  cursor: pointer;
  transition: all var(--t);
  border: none;
  letter-spacing: var(--ls-ui);
}
.btn-primary {
  background: var(--coral);
  color: #fff;
  box-shadow: 0 2px 8px rgba(232,97,58,0.25);
}
.btn-primary:hover {
  background: #D45530;
  transform: translateY(-2px);
  box-shadow: var(--shadow-coral);
}
.btn-outline {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--border-sand);
}
.btn-outline:hover {
  background: var(--sand);
  border-color: rgba(26,31,54,0.25);
  color: var(--ink);
}
.btn-group { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Project Cards (Depth Card) ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 30px;
  transition: box-shadow var(--t), transform var(--t), border-color var(--t);
  cursor: pointer;
  height: 100%;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

/* Depth Card – 왼쪽 상단 Ink Navy 액센트 라인 */
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 0;
  background: var(--ink);
  border-radius: 0 0 2px 0;
  transition: height var(--t-slow);
}
.card:hover::before {
  height: 100%;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(26,31,54,0.18);
}

.card-icon {
  width: 44px; height: 44px;
  border-radius: var(--r-sm);
  background: var(--sand);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
  transition: background var(--t);
}
.card:hover .card-icon {
  background: rgba(26,31,54,0.08);
}
.card-icon svg { width: 22px; height: 22px; color: var(--ink); transition: color var(--t); }

.card-title {
  font-family: var(--font-serif-ko);
  font-size: var(--fs-h4);
  font-weight: var(--fw-h4);
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: var(--ls-h4);
  line-height: var(--lh-h4);
}
.card-desc {
  font-family: var(--font-body);
  font-size: var(--fs-body-min);
  color: var(--text-muted);
  line-height: var(--lh-body-min);
}
.card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-sans-en);
  font-size: calc(var(--fs-ui) - 2px);
  font-weight: 600;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: 18px;
  transition: color var(--t), gap var(--t);
}
.card:hover .card-arrow {
  color: var(--ink);
  gap: 8px;
}

.card-wide {
  grid-column: span 2;
}
.card-center {
  text-align: center;
  cursor: default;
  padding: 20px;
}
.card-center:hover {
  transform: none;
  box-shadow: var(--shadow-sm);
  border-color: var(--border);
}
.card-center::before {
  display: none;
}
.card-img-fit {
  width: 100%;
  max-width: 320px;
  height: auto;
  border-radius: var(--r-sm);
  margin: 0 auto 12px;
  display: block;
}

/* ── Timeline (Footprint) ── */
.timeline { position: relative; padding: 0 0 0 32px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 7px; top: 0; bottom: 0;
  width: 1.5px;
  background: linear-gradient(to bottom, var(--ink), var(--border-sand));
}
.timeline-item {
  position: relative;
  margin-bottom: 28px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -29px; top: 6px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border-sand);
  transition: background var(--t), border-color var(--t);
}
.timeline-item:hover::before {
  background: var(--ink);
  border-color: var(--ink);
}
.timeline-year {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-label);
  font-weight: var(--fw-label);
  color: var(--ink);
  opacity: 0.6;
  letter-spacing: var(--ls-label);
  line-height: var(--lh-label);
  margin-bottom: 4px;
}
.timeline-title {
  font-family: var(--font-serif-ko);
  font-size: var(--fs-h4);
  font-weight: var(--fw-h4);
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: var(--ls-h4);
  line-height: var(--lh-h4);
}
.timeline-desc {
  font-family: var(--font-body);
  font-size: var(--fs-body-min);
  color: var(--text-muted);
  line-height: var(--lh-body-min);
}

/* ── Vision Block ── */
.vision-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.vision-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 24px 28px;
  box-shadow: var(--shadow-sm);
}
.notice-card {
  margin-bottom: 24px;
  border-left: 3px solid var(--accent);
}
.notice-card .vision-label {
  color: var(--accent);
  opacity: 1;
}
.vision-card-body {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: normal;
  line-height: 1.75;
  color: var(--text-muted);
}
.accent-card .vision-card-body {
  color: rgba(255, 255, 255, 0.9);
}
.vision-card.accent-card {
  background: var(--ink);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-md);
}
.vision-card.accent-card .vision-label { color: rgba(255,255,255,0.8); }
.vision-label {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-label);
  font-weight: var(--fw-label);
  letter-spacing: var(--ls-label);
  color: var(--ink);
  opacity: 0.6;
  margin-bottom: 10px;
}
.vision-text {
  font-family: var(--font-serif-ko);
  font-size: var(--fs-body);
  font-weight: var(--fw-body);
  line-height: var(--lh-body);
  letter-spacing: normal;
  text-wrap: balance;
}
.vision-full {
  grid-column: span 2;
}

/* ── Node Graph (Projects) ── */
.graph-section {
  padding: 28px 64px 40px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.graph-container {
  width: 100%;
  max-width: 680px;
  aspect-ratio: 1 / 0.85;
  position: relative;
  margin: 0;
}
#project-graph {
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* ── Graph Edge Animation ── */
@keyframes dashAnim {
  to { stroke-dashoffset: -20; }
}
.edge-line { stroke-dashoffset: 0; }

/* ── Project Detail ── */
.project-hero {
  padding: 28px 64px 40px;
  background: linear-gradient(135deg, var(--sand) 0%, var(--bg) 60%);
  border-bottom: 1px solid var(--border);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb-sep { color: var(--border-sand); }
.project-hero-title {
  font-family: var(--font-serif-ko);
  font-size: var(--fs-h2);
  font-weight: var(--fw-h2);
  letter-spacing: var(--ls-h2);
  color: var(--text);
  margin-bottom: 12px;
  line-height: var(--lh-h2);
}
.project-hero-desc {
  font-family: var(--font-body);
  font-size: var(--fs-body-sub);
  color: var(--text-muted);
  max-width: 560px;
  line-height: var(--lh-body-sub);
}

/* ── Image Gallery ── */
.gallery {
  padding: 40px 64px;
}
.slider-container {
  position: relative;
  width: 100%;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  background: var(--sand);
}
.slider-track {
  display: flex;
  transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}
.slider-item {
  flex: 0 0 100%;
  width: 100%;
}
.slider-item img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(100%);
  transition: filter var(--t-slow);

  /* GPU 하드웨어 가속 시 서브픽셀 렌더링 왜곡 보정 */
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);

  /* 브라우저별 이미지 렌더링 선명도 최적화 */
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;

  /* 이미지 저장 보호: 모바일 롱프레스 · 드래그 차단 */
  -webkit-touch-callout: none;
  user-select: none;
  -webkit-user-select: none;
  pointer-events: none;
}
.slider-item:hover img {
  filter: grayscale(0%);
}
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--border);
  color: var(--text);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  box-shadow: var(--shadow-sm);
  transition: all var(--t);
}
.slider-btn:hover {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  box-shadow: var(--shadow-md);
}
.slider-btn.prev { left: 16px; }
.slider-btn.next { right: 16px; }
.slider-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}
.slider-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--border-sand);
  cursor: pointer;
  transition: background var(--t), transform var(--t);
}
.slider-dot.active {
  background: var(--ink);
  transform: scale(1.2);
}

/* ── Feature List ── */
.features {
  padding: 40px 64px;
  border-top: 1px solid var(--border);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.feature-item {
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: var(--surface);
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--t), border-color var(--t);
}
.feature-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(26,31,54,0.18);
}
.feature-num {
  font-family: var(--font-serif-en);
  font-size: var(--fs-feat-num);
  font-weight: 400;
  font-style: italic;
  color: var(--border-sand);
  margin-bottom: 10px;
}
.feature-title {
  font-family: var(--font-serif-ko);
  font-size: var(--fs-h4);
  font-weight: var(--fw-h4);
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: var(--ls-h4);
  line-height: var(--lh-h4);
}
.feature-desc {
  font-family: var(--font-body);
  font-size: var(--fs-body-min);
  color: var(--text-muted);
  line-height: var(--lh-body-min);
}

/* ── Company Page ── */
.company-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 26px 30px;
  box-shadow: var(--shadow-sm);
}
.info-label {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: var(--fs-badge);
  font-weight: 400;
  letter-spacing: 0.3px;
  color: var(--ink);
  opacity: 0.6;
  margin-bottom: 8px;
}
.info-value {
  font-family: var(--font-serif-ko);
  font-size: var(--fs-body);
  font-weight: 600;
  color: var(--text);
  line-height: 1.55;
}
.info-value a { color: var(--ink); text-decoration: underline; }
.info-value a:hover { text-decoration: underline; }

/* ── Page Header ── */
.page-header {
  padding: 28px 64px 40px;
  border-bottom: 1px solid var(--border);
}

/* ── Mobile Responsive Overrides ── */
@media (max-width: 768px) {
  :root {
    /* Typography Scale - Mobile Override */
    --fs-h1: 38px;
    --lh-h1: 1.25;
    --ls-h1: -1.5px;

    --fs-h2: 30px;
    --lh-h2: 1.3;
    --ls-h2: -0.5px;

    --fs-h3: 26px;
    --lh-h3: 1.3;
    --ls-h3: -0.8px;

    --fs-h4: 15px;
    --lh-h4: 1.4;
    --ls-h4: -0.3px;

    --fs-body: 15px;
    --lh-body: 1.6;
    --ls-body: normal;

    --fs-body-sub: 16px;
    --lh-body-sub: 1.75;
    --ls-body-sub: normal;

    --fs-body-min: 12px;
    --lh-body-min: 1.65;
    --ls-body-min: normal;

    --fs-label: 11.5px;
    --lh-label: 1.3;
    --ls-label: 0.3px;

    --fs-ui: 13.5px;
    --lh-ui: normal;
    --ls-ui: 0.1px;

    --fs-badge: 10.5px;
    --fs-feat-num: 24px;
  }
  .hero { padding: 100px 28px 60px; }
  .hero-bg-icon { width: 200px; height: 200px; right: -20px; opacity: 0.35; }
  .section { padding: 48px 28px; }
  .page-header { padding: 100px 28px 40px; }
  .project-hero { padding: 100px 28px 40px; }
  .gallery { padding: 40px 28px; }
  .features { padding: 40px 28px; }
  .card-grid,
  .feature-grid,
  .vision-grid,
  .company-grid { grid-template-columns: 1fr; }
  .vision-full { grid-column: span 1; }

  .hero-title br,
  .hero-sub br,
  .section-title br,
  .section-desc br,
  .project-hero-title br,
  .project-hero-desc br {
    display: none;
  }
  .graph-section { padding: 100px 28px 48px; }

  .section-title {
    margin-bottom: 20px;
  }
  .section-desc {
    max-width: 100% !important;
    margin-bottom: 24px;
  }
  .card {
    padding: 20px;
  }
  .card-wide {
    grid-column: span 1 !important;
  }
  .card-center {
    padding: 16px;
  }
  .card-img-fit {
    max-width: 260px;
  }
}

/* ── IR/Contact Inquiry Modal ── */
.ir-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26, 31, 54, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.ir-modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}
.ir-modal-content {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  width: 90%;
  max-width: 520px;
  padding: 36px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}
.ir-modal-backdrop.active .ir-modal-content {
  transform: translateY(0);
}
.ir-modal-header {
  position: relative;
  text-align: center;
  display: block;
  margin-bottom: 28px;
  min-height: 38px;
}
.ir-modal-title {
  font-family: var(--font-serif-ko);
  font-size: var(--fs-h3);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.3;
  color: var(--text);
  margin: 0;
  text-align: center;
  padding: 0 40px;
}
.ir-modal-close-btn {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--t);
}
.ir-modal-close-btn:hover {
  color: var(--ink);
}
.ir-modal-close-btn svg {
  width: 24px;
  height: 24px;
}
.ir-form-group {
  margin-bottom: 20px;
}
.ir-form-group label {
  display: block;
  font-family: var(--font-body);
  font-size: var(--fs-ui);
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.ir-form-group input,
.ir-form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-sand);
  border-radius: var(--r-sm);
  background: var(--bg);
  font-family: var(--font-body);
  font-size: var(--fs-body-min);
  color: var(--text);
  box-sizing: border-box;
  line-height: 1.7;
  transition: border-color var(--t), outline var(--t);
}
.ir-form-group input:focus,
.ir-form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.ir-form-group textarea {
  resize: vertical;
  min-height: 120px;
}
.ir-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 28px;
}
.ir-modal-footer .btn {
  font-family: var(--font-sans-en);
  padding: 12px 24px;
  font-size: var(--fs-ui);
  font-weight: 600;
  cursor: pointer;
}
.ir-modal-footer .btn-outline {
  background: transparent;
  border: 1px solid var(--border-sand);
  color: var(--text-muted);
  border-radius: var(--r-sm);
  transition: background var(--t), color var(--t);
}
.ir-modal-footer .btn-outline:hover {
  background: var(--sand);
  color: var(--text);
}
.ir-modal-footer .btn-primary {
  background: var(--ink);
  border: 1px solid var(--ink);
  color: #fff;
  border-radius: var(--r-sm);
  transition: background var(--t), border-color var(--t);
}
.ir-modal-footer .btn-primary:hover {
  background: var(--coral);
  border-color: var(--coral);
}
.ir-modal-footer .btn-primary:disabled {
  background: var(--text-light);
  border-color: var(--text-light);
  cursor: not-allowed;
}

/* Success Screen Styles */
.ir-success-screen {
  text-align: center;
  padding: 16px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.ir-success-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(232, 97, 58, 0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.ir-success-icon svg {
  width: 32px;
  height: 32px;
}
.ir-success-title {
  font-family: var(--font-serif-ko);
  font-size: var(--fs-h4);
  font-weight: 600;
  letter-spacing: -0.3px;
  line-height: 1.4;
  color: var(--text);
  margin: 0 0 12px 0;
  text-align: center;
}
.ir-success-desc {
  font-family: var(--font-body);
  font-size: var(--fs-body-min);
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0 0 28px 0;
  text-align: center;
}

/* ── IR/Contact 모달 모바일 반응형 ── */
@media (max-width: 768px) {
  .ir-modal-content {
    width: 95%;
    padding: 24px 20px;
    max-height: 90dvh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .ir-modal-title {
    font-size: 20px;
    letter-spacing: -0.5px;
    padding-right: 32px;
  }
  .ir-modal-close-btn {
    top: 0;
    transform: none;
    padding: 2px;
  }
  .ir-modal-header {
    min-height: unset;
    margin-bottom: 20px;
  }
  .ir-form-group {
    margin-bottom: 14px;
  }
  .ir-modal-footer {
    flex-direction: column-reverse;
    gap: 8px;
    margin-top: 20px;
  }
  .ir-modal-footer .btn {
    width: 100%;
    text-align: center;
    padding: 13px 16px;
    box-sizing: border-box;
  }
}