/* ============================================
   박동혁 — Portfolio Site (The Square 2026)
   슬라이드 톤 계승 + 모바일 반응형
   ============================================ */

@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&display=swap');

:root {
  --navy: #0A2540;
  --navy-2: #11305A;
  --coral: #FF5A36;
  --coral-soft: #FFE6DE;
  --cream: #F7F4EE;
  --cream-2: #EFEAE0;
  --ink: #1A1A1A;
  --ink-2: #2A2F3A;
  --gray: #6B7280;
  --gray-2: #9CA3AF;
  --line: #D8D2C5;
  --white: #FFFFFF;
  --nav-w: 280px;
}

* { box-sizing: border-box; -webkit-font-smoothing: antialiased; }
html { scroll-behavior: smooth; }
body {
  margin: 0; padding: 0;
  font-family: 'Pretendard', sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.5;
}
.mono { font-family: 'IBM Plex Mono', monospace; font-feature-settings: 'tnum'; }
.muted { color: var(--gray); }
.coral-text { color: var(--coral); }
a { color: inherit; text-decoration: none; }
mark { background: linear-gradient(180deg, transparent 60%, var(--coral-soft) 60%); color: inherit; padding: 0 4px; }

/* ============================================
   좌측 고정 네비게이션
   ============================================ */
.sidenav {
  position: fixed;
  left: 0; top: 0;
  width: var(--nav-w);
  height: 100vh;
  background: var(--navy);
  color: var(--white);
  padding: 40px 28px;
  overflow-y: auto;
  z-index: 100;
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(255,255,255,0.05);
}
.sidenav-brand {
  padding-bottom: 24px;
  margin-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.sidenav-mark {
  font-size: 56px; font-weight: 900;
  color: var(--coral);
  line-height: 1;
  letter-spacing: -0.04em;
}
.sidenav-name {
  margin-top: 12px;
  font-size: 24px; font-weight: 800;
  letter-spacing: -0.02em;
}
.sidenav-role {
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.65);
  font-family: 'IBM Plex Mono', monospace;
}

.sidenav-list {
  list-style: none;
  padding: 0; margin: 0;
  flex: 1;
}
.sidenav-list li { margin: 0; }
.sidenav-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  transition: color 0.15s, transform 0.15s;
}
.sidenav-list a::before {
  content: attr(data-num);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: rgba(255,255,255,0.35);
  font-weight: 700;
  letter-spacing: 0.08em;
  min-width: 22px;
}
.sidenav-list a:hover {
  color: var(--white);
  transform: translateX(2px);
}
.sidenav-list a.active {
  color: var(--coral);
  font-weight: 700;
}
.sidenav-list a.active::before {
  color: var(--coral);
}

.sidenav-foot {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.45);
  line-height: 1.6;
}

/* 모바일 햄버거 (기본 숨김) */
.mobile-toggle {
  display: none;
  position: fixed;
  top: 16px; right: 16px;
  width: 48px; height: 48px;
  background: var(--navy);
  border: none;
  cursor: pointer;
  z-index: 200;
  border-radius: 4px;
  padding: 12px;
}
.mobile-toggle span {
  display: block;
  width: 100%; height: 2px;
  background: var(--white);
  margin: 4px 0;
  transition: transform 0.2s, opacity 0.2s;
}
.mobile-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ============================================
   메인 컨텐츠 — 섹션 공통
   ============================================ */
.content {
  margin-left: var(--nav-w);
  width: calc(100% - var(--nav-w));
}
.sec {
  width: 100%;
  padding: 100px 80px;
  position: relative;
}
.sec-cream { background: var(--cream); border-bottom: 1px solid var(--line); }
.sec-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}
.eyebrow {
  font-size: 14px;
  letter-spacing: 0.24em;
  font-weight: 700;
  color: var(--coral);
  text-transform: uppercase;
}
.eyebrow-mt { margin-top: 56px; }
.page-num {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gray);
  font-weight: 600;
}
.page-num b { color: var(--ink); }

.big-headline {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--navy);
  margin: 0 0 24px;
}
.big-sub {
  font-size: 20px;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 1100px;
  margin: 0 0 40px;
}
.section-tag {
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--gray);
  font-weight: 700;
  margin: 40px 0 20px;
}

/* ============================================
   01 COVER
   ============================================ */
.sec-cover {
  background: var(--navy);
  color: var(--white);
  padding: 80px 0 0;
  min-height: 100vh;
  position: relative;
  overflow: hidden;
}
.cover-bg-grid {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, transparent 0, transparent 159px, rgba(255,255,255,0.04) 159px, rgba(255,255,255,0.04) 160px);
}
.cover-coral {
  position: absolute;
  right: 0; top: 0;
  width: 36%; height: 100%;
  background: var(--coral);
}
.cover-divider {
  position: absolute;
  right: 36%; top: 0;
  width: 60px; height: 100%;
  background: var(--navy-2);
}

.cover-eyebrow {
  position: relative; z-index: 2;
  padding: 0 80px;
  margin-bottom: 80px;
}
.cover-eyebrow .mono {
  font-size: 14px;
  letter-spacing: 0.3em;
  color: var(--coral);
  font-weight: 600;
}
.cover-track {
  margin-top: 12px;
  font-size: 14px;
  letter-spacing: 0.22em;
  color: rgba(255,255,255,0.55);
}

.cover-title {
  position: relative; z-index: 2;
  padding: 0 80px;
  max-width: 60%;
  margin-bottom: 100px;
}
.cover-title h1 {
  font-size: 160px;
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin: 0;
}
.cover-sub {
  margin-top: 32px;
  font-size: 32px;
  font-weight: 300;
  line-height: 1.35;
  letter-spacing: -0.015em;
  color: rgba(255,255,255,0.92);
}
.cover-sub strong { color: var(--coral); font-weight: 700; }

.cover-meta {
  position: relative; z-index: 2;
  padding: 0 80px 80px;
  max-width: 60%;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.meta-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.5);
  font-weight: 600;
}
.meta-value {
  margin-top: 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
}

.cover-mark {
  position: absolute;
  right: 80px; top: 120px;
  text-align: left;
  z-index: 2;
  max-width: 400px;
}
.cover-mark .mono {
  font-size: 13px;
  letter-spacing: 0.3em;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
}
.cover-mark-p {
  margin-top: 16px;
  font-size: 200px;
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: -0.06em;
}
.cover-mark-name {
  margin-top: 16px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.35;
}

.cover-date {
  position: absolute;
  right: 80px; bottom: 60px;
  z-index: 2;
  text-align: left;
}
.cover-date .mono {
  font-size: 13px;
  letter-spacing: 0.25em;
  font-weight: 600;
}
.cover-date div:last-child {
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.6);
}

/* ============================================
   02 ONE-LINE
   ============================================ */
.quote-headline {
  font-size: 64px;
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--navy);
  margin: 40px 0 24px;
  max-width: 1400px;
}
.quote-headline strong { font-weight: 800; }

.role-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 24px;
}
.role-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 4px solid var(--coral);
  padding: 28px 30px;
}
.role-card-dark {
  background: var(--navy);
  border-color: var(--navy);
  border-top-color: var(--coral);
  color: var(--white);
}
.role-tag {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--coral);
  font-weight: 700;
}
.role-card h3 {
  margin: 14px 0 12px;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--navy);
}
.role-card-dark h3 { color: var(--white); }
.role-card p {
  margin: 0;
  font-size: 15px;
  color: var(--gray);
  line-height: 1.5;
}
.role-card-dark p { color: rgba(255,255,255,0.7); }

/* ============================================
   03 IDENTITY
   ============================================ */
.identity-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.identity-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 28px 32px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  border-left: 6px solid var(--coral);
}
.identity-card-dark {
  background: var(--navy);
  border-color: var(--navy);
  border-left-color: var(--coral);
  color: var(--white);
}
.identity-num {
  font-size: 16px;
  color: var(--coral);
  font-weight: 700;
  min-width: 30px;
  padding-top: 2px;
}
.identity-card h3 {
  margin: 0 0 8px;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--navy);
}
.identity-card-dark h3 { color: var(--white); }
.identity-card .period {
  font-size: 15px;
  font-weight: 500;
  color: var(--gray);
  margin-left: 8px;
}
.identity-card-dark .period { color: rgba(255,255,255,0.55); }
.identity-card p {
  margin: 0;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink-2);
}
.identity-card-dark p { color: rgba(255,255,255,0.88); }
.badge-current {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--white);
  background: var(--coral);
  padding: 3px 10px;
  font-weight: 700;
  vertical-align: middle;
  margin: 0 4px;
}

/* ============================================
   04 CAREER
   ============================================ */
.career-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 32px 0;
}
.career-step {
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--navy);
}
.career-step-coral { border-top-color: var(--coral); }
.career-step-current {
  background: var(--navy);
  border-color: var(--navy);
  border-top: 4px solid var(--coral);
  color: var(--white);
}
.step-period {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gray);
  font-weight: 600;
}
.career-step-current .step-period { color: var(--coral); }
.step-title {
  margin-top: 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
}
.career-step-current .step-title { color: var(--white); }
.step-detail {
  margin-top: 8px;
  font-size: 14px;
  color: var(--gray);
  line-height: 1.5;
}
.career-step-current .step-detail { color: rgba(255,255,255,0.7); }

.career-foot {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.foot-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gray);
  font-weight: 600;
}
.foot-value {
  margin-top: 8px;
  font-size: 15px;
  color: var(--ink);
  font-weight: 600;
  line-height: 1.5;
}

/* ============================================
   05 PILLARS
   ============================================ */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.pillar-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 40px 36px;
}
.pillar-card-dark {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}
.pillar-num {
  font-size: 48px;
  font-weight: 700;
  color: var(--coral);
  line-height: 1;
}
.pillar-card h3 {
  margin: 20px 0 16px;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--navy);
  line-height: 1.25;
}
.pillar-card-dark h3 { color: var(--white); }
.pillar-card p {
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-2);
}
.pillar-card-dark p { color: rgba(255,255,255,0.82); }
.pillar-section-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gray);
  font-weight: 600;
  margin-bottom: 12px;
}
.pillar-card-dark .pillar-section-label { color: rgba(255,255,255,0.55); }
.pillar-metric {
  padding: 14px 18px;
  background: var(--cream);
  border-left: 3px solid var(--coral);
  margin-bottom: 10px;
}
.pillar-card-dark .pillar-metric {
  background: rgba(255,255,255,0.06);
}
.metric-val {
  font-size: 28px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
}
.pillar-card-dark .metric-val { color: var(--white); }
.metric-val-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
}
.pillar-card-dark .metric-val-text { color: var(--white); }
.metric-desc {
  margin-top: 6px;
  font-size: 13px;
  color: var(--gray);
}
.pillar-card-dark .metric-desc { color: rgba(255,255,255,0.6); }
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 20px;
}
.tag {
  display: inline-block;
  padding: 5px 12px;
  background: var(--white);
  border: 1px solid var(--line);
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-2);
  border-radius: 999px;
  letter-spacing: 0.02em;
}
.tag-light {
  background: rgba(255,255,255,0.08);
  color: var(--white);
  border-color: rgba(255,255,255,0.15);
}

/* ============================================
   06 ROLES (detail)
   ============================================ */
.role-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.role-detail-card {
  background: var(--white);
  border: 1px solid var(--line);
}
.role-detail-card-dark {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}
.role-detail-head {
  padding: 28px 30px 0;
}
.role-detail-tag {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--coral);
  font-weight: 700;
}
.role-detail-org {
  margin-top: 12px;
  font-size: 16px;
  color: var(--gray);
  font-weight: 500;
}
.role-detail-card-dark .role-detail-org { color: rgba(255,255,255,0.6); }
.role-detail-title {
  margin-top: 6px;
  font-size: 26px;
  font-weight: 800;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.role-detail-card-dark .role-detail-title { color: var(--white); }
.role-detail-period {
  margin-top: 8px;
  font-size: 12px;
  color: var(--gray);
}
.role-detail-card-dark .role-detail-period { color: rgba(255,255,255,0.55); }

.role-detail-body {
  margin-top: 24px;
  padding: 20px 30px;
  background: var(--cream);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.role-detail-card-dark .role-detail-body {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.1);
}
.section-tag-small {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gray);
  font-weight: 700;
}
.role-detail-card-dark .section-tag-small { color: rgba(255,255,255,0.55); }
.section-tag-coral { color: var(--coral) !important; }
.role-detail-body ul {
  margin: 12px 0 0;
  padding-left: 0;
  list-style: none;
}
.role-detail-body li {
  font-size: 15px;
  color: var(--ink);
  line-height: 1.5;
  margin-bottom: 8px;
  padding-left: 14px;
  position: relative;
}
.role-detail-body li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--coral);
  font-weight: 700;
}
.role-detail-card-dark .role-detail-body li { color: rgba(255,255,255,0.92); }

.role-detail-foot {
  padding: 20px 30px 28px;
}
.role-detail-foot p {
  margin: 10px 0 0;
  font-size: 15px;
  color: var(--navy);
  font-weight: 600;
  line-height: 1.55;
}
.role-detail-card-dark .role-detail-foot p { color: var(--white); }

.closing-strip {
  margin-top: 40px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.strip-bar {
  display: block;
  width: 6px;
  height: 44px;
  background: var(--coral);
  flex-shrink: 0;
}
.closing-strip p {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.4;
  letter-spacing: -0.01em;
}

/* ============================================
   07 / 09 CASE (sidebar + body)
   ============================================ */
.case-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 32px;
  align-items: start;
}
.case-side {
  padding: 36px 32px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 4px solid var(--coral);
  position: sticky;
  top: 40px;
}
.case-side-dark {
  background: var(--navy);
  border-color: var(--navy);
  border-top-color: var(--coral);
  color: var(--white);
}
.case-tag {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--coral);
  font-weight: 700;
}
.case-tag-coral { color: var(--coral) !important; }
.case-title {
  margin: 20px 0 24px;
  font-size: 56px;
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.03em;
  color: var(--white);
}
.case-meta {
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.case-side:not(.case-side-dark) .case-meta { border-top-color: var(--line); }
.case-meta dt {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.55);
  font-weight: 700;
  margin-top: 14px;
}
.case-side:not(.case-side-dark) .case-meta dt { color: var(--gray); }
.case-meta dd {
  margin: 6px 0 0;
  font-size: 15px;
  color: var(--white);
  font-weight: 500;
  line-height: 1.45;
}
.case-side:not(.case-side-dark) .case-meta dd { color: var(--ink); }
.case-meta dd strong { font-weight: 700; }

.case-body { padding-top: 8px; }
.case-headline {
  margin: 12px 0 32px;
  font-size: 44px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--navy);
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}
.metric-block {
  padding: 28px 32px;
  background: var(--white);
  border: 1px solid var(--line);
}
.metric-label {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--gray);
  font-weight: 600;
  text-transform: uppercase;
}
.metric-large {
  margin-top: 12px;
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--navy);
}

.exec-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}
.exec-card {
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
}
.exec-tag {
  font-size: 10px;
  color: var(--coral);
  letter-spacing: 0.2em;
  font-weight: 700;
}
.exec-card h4 {
  margin: 10px 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
}
.exec-card p {
  margin: 0;
  font-size: 14px;
  color: var(--gray);
  line-height: 1.5;
}
.exec-card p strong { color: var(--navy); }

/* ============================================
   08 KAKAO
   ============================================ */
.kakao-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 32px;
}
.kakao-quote-block {
  padding: 48px 40px;
  background: var(--navy);
  color: var(--white);
}
.quote-mark {
  font-family: Georgia, serif;
  font-style: italic;
  font-size: 90px;
  line-height: 0.5;
  color: var(--coral);
  margin: 24px 0 0;
}
.quote-text {
  margin: 16px 0 32px;
  font-size: 28px;
  font-weight: 300;
  line-height: 1.45;
  letter-spacing: -0.01em;
}
.quote-text strong { font-weight: 700; }
.quote-foot {
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  line-height: 1.55;
}
.quote-foot strong { color: var(--white); }

.kakao-headline-block {
  padding-left: 8px;
}
.kakao-headline-block > .mono {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gray);
  font-weight: 700;
}
.huge-number {
  margin-top: 14px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 200px;
  font-weight: 700;
  line-height: 0.85;
  color: var(--coral);
  letter-spacing: -0.04em;
}
.huge-percent { font-size: 110px; }
.huge-caption {
  margin-top: 20px;
  font-size: 22px;
  color: var(--navy);
  font-weight: 600;
  line-height: 1.4;
}
.why-matter {
  margin-top: 40px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
}
.why-tag {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--coral);
  font-weight: 700;
}
.why-matter p {
  margin: 12px 0 0;
  font-size: 17px;
  color: var(--ink);
  line-height: 1.55;
}

/* ============================================
   09 SAMCHULLY parts
   ============================================ */
.part-card {
  padding: 32px 36px;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 6px solid var(--coral);
  margin-bottom: 16px;
}
.part-card-navy {
  border-left-color: var(--navy);
}
.part-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.part-tag {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--coral);
  font-weight: 700;
}
.part-tag-navy { color: var(--navy); }
.part-card h3 {
  margin: 8px 0 14px;
  font-size: 26px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.015em;
}
.part-period {
  font-size: 13px;
  color: var(--gray);
  font-weight: 500;
}
.part-card p {
  margin: 0 0 16px;
  font-size: 16px;
  color: var(--ink-2);
  line-height: 1.55;
}
.part-metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.part-metric {
  padding: 14px 18px;
  background: var(--cream);
  border-left: 3px solid var(--navy);
}
.part-metric-val {
  font-size: 28px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
}
.part-metric-desc {
  margin-top: 6px;
  font-size: 12px;
  color: var(--gray);
}

/* ============================================
   10 GROWTH
   ============================================ */
.growth-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 32px;
}
.growth-card {
  padding: 36px 36px 32px;
  background: var(--white);
  border: 1px solid var(--line);
}
.growth-card-dark {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}
.growth-card h3 {
  margin: 12px 0 4px;
  font-size: 30px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.growth-card-dark h3 { color: var(--white); }
.growth-sub {
  font-size: 14px;
  margin-bottom: 20px;
}
.growth-card-dark .growth-sub { color: rgba(255,255,255,0.6); }
.growth-context {
  padding: 18px 22px;
  background: var(--cream);
  border-left: 3px solid var(--navy);
  margin-bottom: 24px;
}
.growth-card-dark .growth-context {
  background: rgba(255,255,255,0.06);
  border-left-color: var(--coral);
}
.growth-context p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}
.growth-card-dark .growth-context p { color: rgba(255,255,255,0.9); }
.growth-context strong { color: var(--navy); }
.growth-card-dark .growth-context strong { color: var(--white); }
.growth-metric-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.growth-metric {
  padding: 22px 24px;
  background: var(--cream);
  border: 1px solid var(--line);
}
.growth-card-dark .growth-metric {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
}
.growth-card-dark .metric-label { color: rgba(255,255,255,0.55); }
.growth-card-dark .metric-desc { color: rgba(255,255,255,0.65); }

/* ============================================
   11 TEACHING OVERVIEW
   ============================================ */
.teaching-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 32px;
  margin-top: 32px;
  align-items: start;
}
.teaching-stats {
  padding: 36px 36px 32px;
  background: var(--navy);
  color: var(--white);
}
.teaching-stats > .mono {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--coral);
  font-weight: 700;
}
.big-stat {
  margin-top: 24px;
  font-size: 96px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}
.big-stat-desc {
  margin-top: 8px;
  font-size: 16px;
  color: rgba(255,255,255,0.7);
}
.teaching-stats hr {
  margin: 28px 0;
  border: none;
  height: 1px;
  background: rgba(255,255,255,0.15);
}
.dual-stat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.small-stat-val {
  font-size: 44px;
  font-weight: 700;
  color: var(--coral);
  line-height: 1;
}
.muted-stat {
  font-size: 22px;
  color: rgba(255,255,255,0.55);
  font-weight: 400;
}
.small-stat-desc {
  margin-top: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  line-height: 1.4;
}

.teaching-domains > .mono {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gray);
  font-weight: 700;
  margin-bottom: 18px;
  display: block;
}
.domain-row {
  padding: 20px 24px;
  background: var(--white);
  border: 1px solid var(--line);
  margin-bottom: 14px;
}
.domain-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
}
.domain-detail {
  margin-top: 6px;
  font-size: 13px;
  color: var(--gray);
  line-height: 1.45;
}
.domain-bar {
  margin-top: 10px;
  height: 6px;
  background: var(--cream);
  border-radius: 999px;
  overflow: hidden;
}
.domain-bar span {
  display: block;
  height: 100%;
  background: var(--coral);
}

/* ============================================
   12 TEACHING TABLE
   ============================================ */
.teaching-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 32px;
  font-size: 14px;
}
.teaching-table th {
  text-align: left;
  padding: 14px 0;
  border-bottom: 2px solid var(--navy);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--navy);
  font-weight: 700;
}
.teaching-table th:nth-child(1) { width: 180px; }
.teaching-table th:nth-child(3) { width: 220px; text-align: right; }
.teaching-table td {
  padding: 12px 12px 12px 0;
  border-bottom: 1px solid var(--cream-2);
  vertical-align: top;
}
.teaching-table td.mono {
  font-size: 13px;
  color: var(--gray);
  font-weight: 500;
}
.teaching-table td:nth-child(2) {
  font-size: 15px;
  color: var(--ink);
  font-weight: 500;
}
.teaching-table td:nth-child(3) {
  font-size: 14px;
  color: var(--navy);
  font-weight: 600;
  text-align: right;
}
.table-foot {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.5;
}

/* ============================================
   13 R&D
   ============================================ */
.rnd-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.rnd-card {
  padding: 24px 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 4px solid var(--coral);
}
.rnd-card-dark {
  background: var(--navy);
  border-color: var(--navy);
  border-left-color: var(--coral);
}
.rnd-period {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gray);
  font-weight: 700;
}
.rnd-coral { color: var(--coral) !important; }
.rnd-card h4 {
  margin: 8px 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
}
.rnd-card-dark h4 { color: var(--white); }
.rnd-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
}
.rnd-card-dark-p { color: rgba(255,255,255,0.78); }
.mvp-note {
  margin-top: 24px;
  padding: 24px 28px;
  background: var(--white);
  border: 1px solid var(--line);
}
.mvp-tag {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--coral);
  font-weight: 700;
}
.mvp-note h4 {
  margin: 8px 0 6px;
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
}
.mvp-note p { margin: 0; font-size: 15px; line-height: 1.55; }

/* ============================================
   14 CERTS & AWARDS
   ============================================ */
.certs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 32px;
}
.awards-block {
  padding: 40px 36px;
  background: var(--navy);
  color: var(--white);
}
.awards-block > .mono {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--coral);
  font-weight: 700;
}
.awards-block h3 {
  margin: 14px 0 32px;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.awards-list {
  list-style: none;
  padding: 0; margin: 0;
}
.awards-list li {
  padding: 18px 22px;
  background: rgba(255,255,255,0.06);
  border-left: 3px solid var(--coral);
  margin-bottom: 14px;
}
.award-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  font-size: 18px;
}
.award-line strong { color: var(--white); font-weight: 700; }
.award-date {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  white-space: nowrap;
}
.awards-list .muted {
  margin-top: 6px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

.certs-block > .mono {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--navy);
  font-weight: 700;
}
.certs-block h3 {
  margin: 12px 0 24px;
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.4;
}
.certs-table {
  width: 100%;
  border-collapse: collapse;
}
.certs-table td {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  vertical-align: baseline;
}
.certs-table td:nth-child(1) {
  font-size: 13px;
  color: var(--gray);
  font-weight: 600;
  width: 110px;
}
.certs-table td:nth-child(2) {
  font-size: 16px;
  color: var(--ink);
  font-weight: 600;
}
.certs-table td:nth-child(3) {
  font-size: 14px;
  text-align: right;
  width: 200px;
}
.cert-recent td:nth-child(2) { color: var(--navy); font-weight: 700; }
.recent-note {
  margin-top: 22px;
  padding: 16px 20px;
  background: var(--coral-soft);
  border-left: 3px solid var(--coral);
  font-size: 14px;
  color: var(--navy);
  font-weight: 600;
  line-height: 1.5;
}

/* ============================================
   15 NETWORK
   ============================================ */
.network-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 32px;
}
.net-card {
  padding: 22px 24px;
  background: var(--white);
  border: 2px solid var(--coral);
}
.net-card-primary {
  background: var(--navy);
  border-color: var(--coral);
  grid-column: span 2;
}
.net-tag {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--coral);
  font-weight: 700;
}
.net-tag-coral { color: var(--coral); }
.net-card h4 {
  margin: 6px 0 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
}
.net-card-primary h4 { color: var(--white); }
.net-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.45;
}
.net-card-primary p { color: rgba(255,255,255,0.75); }

/* ============================================
   16 FIT
   ============================================ */
.fit-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.fit-card {
  padding: 32px 36px;
  background: var(--white);
  border: 1px solid var(--line);
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.fit-card-dark {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}
.fit-num {
  font-size: 40px;
  font-weight: 700;
  color: var(--coral);
  line-height: 1;
  min-width: 56px;
}
.fit-card h3 {
  margin: 0 0 6px;
  font-size: 24px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.015em;
  line-height: 1.25;
}
.fit-card-dark h3 { color: var(--white); }
.fit-tag {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gray);
  font-weight: 600;
}
.fit-card-dark .fit-tag { color: rgba(255,255,255,0.55); }
.fit-card p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-2);
}
.fit-card-dark p { color: rgba(255,255,255,0.85); }

/* ============================================
   17 LINKS (NEW)
   ============================================ */
.links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.link-card {
  padding: 28px 28px 24px;
  background: var(--white);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
}
.link-card-primary {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
  grid-column: span 3;
}
.link-tag {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gray);
  font-weight: 700;
}
.link-tag-coral { color: var(--coral); }
.link-card h3 {
  margin: 10px 0 8px;
  font-size: 20px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.015em;
  line-height: 1.3;
}
.link-card-primary h3 { color: var(--white); font-size: 28px; }
.link-card p {
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--gray);
  line-height: 1.5;
  flex: 1;
}
.link-card-primary p { color: rgba(255,255,255,0.78); font-size: 16px; }
.link-cta {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--coral);
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 8px 0;
  border-bottom: 1px solid var(--coral);
  align-self: flex-start;
  transition: color 0.15s, border-color 0.15s;
}
.link-card-primary .link-cta {
  color: var(--coral);
  border-color: var(--coral);
}
.link-cta:hover { color: var(--navy); border-color: var(--navy); }
.link-card-primary .link-cta:hover { color: var(--white); border-color: var(--white); }
.link-note {
  margin-top: 10px;
  font-size: 12px;
  font-style: italic;
}

.links-disclaimer {
  margin-top: 32px;
  padding: 20px 24px;
  background: var(--coral-soft);
  border-left: 3px solid var(--coral);
}
.links-disclaimer p {
  margin: 0;
  font-size: 14px;
  color: var(--navy);
  line-height: 1.55;
}

/* ============================================
   18 CONTACT (CLOSING)
   ============================================ */
.sec-closing {
  background: var(--navy);
  color: var(--white);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
  min-height: 100vh;
}
.closing-bg-grid {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, transparent 0, transparent 159px, rgba(255,255,255,0.04) 159px, rgba(255,255,255,0.04) 160px);
}
.closing-coral {
  position: absolute;
  right: 0; top: 0;
  width: 36%; height: 100%;
  background: var(--coral);
}
.closing-divider {
  position: absolute;
  right: 36%; top: 0;
  width: 60px; height: 100%;
  background: var(--navy-2);
}

.closing-eyebrow {
  position: relative; z-index: 2;
  padding: 0 80px;
  margin-bottom: 60px;
}
.closing-eyebrow .mono {
  font-size: 14px;
  letter-spacing: 0.3em;
  color: var(--coral);
  font-weight: 600;
}

.closing-title {
  position: relative; z-index: 2;
  padding: 0 80px;
  max-width: 60%;
  margin-bottom: 60px;
}
.closing-title h2 {
  margin: 0;
  font-size: 80px;
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.035em;
}
.closing-title h2 mark { color: var(--coral); background: transparent; }
.closing-sub {
  margin-top: 28px;
  font-size: 22px;
  font-weight: 300;
  line-height: 1.55;
  color: rgba(255,255,255,0.78);
}
.closing-sub strong { color: var(--white); font-weight: 600; }

.closing-contact {
  position: relative; z-index: 2;
  padding: 0 80px;
  max-width: 60%;
}
.contact-divider {
  height: 1px;
  background: rgba(255,255,255,0.15);
  margin-bottom: 28px;
}
.closing-contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 36px;
}
.contact-label {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: rgba(255,255,255,0.5);
  font-weight: 600;
}
.contact-val {
  margin-top: 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
}
.contact-val-sub {
  margin-top: 4px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  font-weight: 500;
}
.contact-val-text {
  margin-top: 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--white);
  line-height: 1.4;
}

.closing-mark {
  position: absolute;
  right: 80px; top: 120px;
  text-align: left;
  z-index: 2;
  max-width: 400px;
}
.closing-mark .mono:first-child {
  font-size: 13px;
  letter-spacing: 0.3em;
  font-weight: 700;
}
.closing-p {
  margin-top: 16px;
  font-size: 200px;
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: -0.06em;
}
.closing-name {
  margin-top: 16px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.35;
}

.closing-sign {
  position: absolute;
  right: 80px; bottom: 60px;
  z-index: 2;
}
.closing-sign .mono {
  font-size: 13px;
  letter-spacing: 0.25em;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
}
.closing-sign-sub {
  margin-top: 6px !important;
  color: rgba(255,255,255,0.6) !important;
  letter-spacing: 0.18em !important;
  font-size: 12px !important;
}

/* ============================================
   반응형 — 태블릿 (1024px 이하)
   ============================================ */
@media (max-width: 1024px) {
  .sidenav {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    width: 280px;
  }
  .sidenav.open { transform: translateX(0); }
  .mobile-toggle { display: block; }
  .content {
    margin-left: 0;
    width: 100%;
  }
  .sec { padding: 64px 40px; }

  .cover-eyebrow, .cover-title, .cover-meta,
  .closing-eyebrow, .closing-title, .closing-contact {
    padding-left: 40px;
    padding-right: 40px;
    max-width: 100%;
  }
  .cover-title h1, .closing-title h2 { font-size: 96px; }
  .cover-sub, .closing-sub { font-size: 22px; }
  .big-headline, .quote-headline, .case-headline { font-size: 40px; }
  .huge-number { font-size: 140px; }
  .huge-percent { font-size: 80px; }

  .cover-mark, .closing-mark {
    position: static;
    padding: 40px 40px 0;
    max-width: 100%;
  }
  .cover-mark-p, .closing-p { font-size: 140px; }
  .cover-date, .closing-sign {
    position: static;
    padding: 24px 40px 40px;
  }
  .cover-coral, .cover-divider,
  .closing-coral, .closing-divider { display: none; }

  .role-grid, .pillars-grid, .role-detail-grid,
  .career-grid, .career-foot, .career-foot,
  .metric-row, .exec-row, .links-grid,
  .network-grid, .fit-grid,
  .closing-contact-grid {
    grid-template-columns: 1fr 1fr;
  }
  .net-card-primary, .link-card-primary { grid-column: span 2; }

  .case-grid, .kakao-grid, .growth-grid,
  .teaching-grid, .certs-grid {
    grid-template-columns: 1fr;
  }
  .case-side { position: static; }
}

/* ============================================
   반응형 — 모바일 (640px 이하)
   ============================================ */
@media (max-width: 640px) {
  .sec { padding: 48px 24px; }
  .cover-eyebrow, .cover-title, .cover-meta,
  .closing-eyebrow, .closing-title, .closing-contact,
  .cover-mark, .cover-date,
  .closing-mark, .closing-sign {
    padding-left: 24px;
    padding-right: 24px;
  }
  .cover-title h1, .closing-title h2 { font-size: 64px; }
  .cover-sub, .closing-sub { font-size: 18px; }
  .cover-mark-p, .closing-p { font-size: 96px; }
  .big-headline, .quote-headline, .case-headline { font-size: 28px; }
  .big-sub { font-size: 16px; }
  .huge-number { font-size: 96px; }
  .huge-percent { font-size: 56px; }
  .case-title { font-size: 40px; }

  .role-grid, .pillars-grid, .role-detail-grid,
  .career-grid, .career-foot, .cover-meta,
  .metric-row, .exec-row, .links-grid,
  .network-grid, .fit-grid,
  .closing-contact-grid,
  .part-metric-row,
  .dual-stat, .growth-metric-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .net-card-primary, .link-card-primary { grid-column: span 1; }

  .fit-card { flex-direction: column; gap: 12px; }
  .fit-num { font-size: 32px; min-width: auto; }
  .identity-card { flex-direction: column; gap: 8px; }

  .teaching-table { font-size: 12px; }
  .teaching-table th:nth-child(3),
  .teaching-table td:nth-child(3) { width: auto; text-align: left; }
  .teaching-table td { padding: 10px 8px 10px 0; }

  .quote-text { font-size: 20px; }
  .quote-mark { font-size: 64px; }

  .closing-strip p { font-size: 17px; }
  .strip-bar { height: 36px; }

  .sidenav { width: 88%; max-width: 320px; }
}