/* ==========================================================================
   a-ccord — Design Tokens & Base (Dark)
   ========================================================================== */

:root {
  --color-bg: #0A0A0A;
  --color-bg-alt: #131312;
  --color-surface: #171716;
  --color-ink: #F6F4EE;
  --color-ink-soft: #ACA89E;
  --color-ink-faint: #7E7A71;
  --color-border: #28271F;
  --color-accent: #2F4A3A;        /* deep green — solid fills (buttons, badges, banners) */
  --color-accent-soft: #9DC4A8;   /* light sage — text/icons/links on dark surfaces */
  --color-accent-tint: #142019;   /* dark green-tinted surface for highlighted cells */
  --color-white: #FFFFFF;

  --font-kr: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif;
  --font-en: 'Pretendard Variable', Pretendard, -apple-system, sans-serif;

  --max-width: 1180px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 7rem;

  --shadow-sm: 0 2px 16px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 20px 48px rgba(0, 0, 0, 0.6);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-kr);
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 { margin: 0; line-height: 1.25; font-weight: 700; }

.en {
  font-family: var(--font-en);
  letter-spacing: -0.02em;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: var(--space-6) 0;
}

.section-head {
  margin-bottom: var(--space-5);
  max-width: 640px;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-soft);
  margin-bottom: var(--space-2);
}

.section-title {
  font-family: var(--font-en);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
}

.section-sub {
  color: var(--color-ink-soft);
  font-size: 1rem;
}

strong { font-weight: 700; color: var(--color-ink); }

/* ---------- Motion ---------- */
@keyframes dotPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(157, 196, 168, 0.55); }
  60% { box-shadow: 0 0 0 6px rgba(157, 196, 168, 0); }
}
@keyframes markFloat {
  0%, 100% { transform: translateY(-50%) translateX(0); }
  50% { transform: translateY(-53%) translateX(-10px); }
}
@keyframes markDotPulse {
  0%, 100% { box-shadow: 0 0 30px 6px rgba(157, 196, 168, 0.22); opacity: 0.7; }
  50% { box-shadow: 0 0 60px 16px rgba(157, 196, 168, 0.4); opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .logo .dot, .hero-mark, .hero-mark .mark-dot, .timeline-item { animation: none !important; }
}

/* Staggered grid reveal — apply .stagger-N to the grid, .reveal to each child */
.stagger-2 > *, .stagger-3 > *, .stagger-4 > *, .stagger-5 > * { transition-delay: var(--stagger-delay, 0s); }
.stagger-2 > *:nth-child(2n+1) { --stagger-delay: 0s; }
.stagger-2 > *:nth-child(2n+2) { --stagger-delay: 0.08s; }
.stagger-3 > *:nth-child(3n+1) { --stagger-delay: 0s; }
.stagger-3 > *:nth-child(3n+2) { --stagger-delay: 0.08s; }
.stagger-3 > *:nth-child(3n+3) { --stagger-delay: 0.16s; }
.stagger-4 > *:nth-child(4n+1) { --stagger-delay: 0s; }
.stagger-4 > *:nth-child(4n+2) { --stagger-delay: 0.08s; }
.stagger-4 > *:nth-child(4n+3) { --stagger-delay: 0.16s; }
.stagger-4 > *:nth-child(4n+4) { --stagger-delay: 0.24s; }
.stagger-5 > *:nth-child(1) { --stagger-delay: 0s; }
.stagger-5 > *:nth-child(2) { --stagger-delay: 0.08s; }
.stagger-5 > *:nth-child(3) { --stagger-delay: 0.16s; }
.stagger-5 > *:nth-child(4) { --stagger-delay: 0.24s; }
.stagger-5 > *:nth-child(5) { --stagger-delay: 0.32s; }

/* ---------- Logo / Wordmark ---------- */
.logo {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  color: var(--color-ink);
}
.logo .dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin: 0 1px 3px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  animation: dotPulse 2.4s ease-in-out infinite;
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1rem;
  margin-right: 0.6rem;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.78);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav-left { display: flex; align-items: center; gap: 0.85rem; }
.nav-brand { display: flex; align-items: center; }
.nav-right { display: flex; align-items: center; gap: var(--space-3); }
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.nav-links a {
  position: relative;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-ink-soft);
  transition: color 0.2s var(--ease);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 50%; right: 50%; bottom: -4px;
  height: 1px;
  background: var(--color-accent-soft);
  transition: left 0.25s var(--ease), right 0.25s var(--ease);
}
.nav-links a:hover, .nav-links a.active { color: var(--color-accent-soft); }
.nav-links a:hover::after, .nav-links a.active::after { left: 0; right: 0; }
.nav-item { position: relative; padding-bottom: 0.6rem; margin-bottom: -0.6rem; }
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.4rem 0;
  min-width: 200px;
  text-align: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
}
.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown a {
  display: block;
  padding: 0.55rem 1rem;
  font-size: 0.8125rem;
  font-weight: 400;
  white-space: nowrap;
  text-align: center;
  color: var(--color-ink-faint);
}
.nav-dropdown a::after { display: none; }
.nav-dropdown a:hover { background: var(--color-bg-alt); color: var(--color-accent-soft); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 32px;
  height: 24px;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--color-ink);
  transition: all 0.25s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 2px; }
.nav-toggle span:nth-child(2) { top: 11px; }
.nav-toggle span:nth-child(3) { top: 20px; }
.nav-toggle.open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.6rem;
  border-radius: 999px;
  font-size: 0.9375rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
  white-space: nowrap;
}
.btn-primary { position: relative; overflow: hidden; background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: #3c6049; transform: translateY(-1px); }
.btn-primary::after {
  content: "";
  position: absolute;
  top: 0; left: -60%;
  width: 40%; height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.35), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s var(--ease);
}
.btn-primary:hover::after { left: 130%; }
.btn-secondary { background: transparent; color: var(--color-ink); border-color: var(--color-ink-soft); }
.btn-secondary:hover { background: var(--color-ink); color: var(--color-bg); border-color: var(--color-ink); transform: translateY(-1px); }
.btn-ghost { background: var(--color-accent-tint); color: var(--color-accent-soft); }
.btn-ghost:hover { background: var(--color-accent); color: #fff; }
.btn-block { width: 100%; }
.cta-row { display: flex; flex-wrap: wrap; gap: 1rem; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-7) 0 var(--space-6);
}
.hero-inner { position: relative; z-index: 1; max-width: 760px; }
.hero h1 {
  letter-spacing: -0.03em;
  margin-bottom: var(--space-3);
}
.hero h1.en { font-size: clamp(2rem, 4.4vw, 3.25rem); }
.hero p {
  font-size: 1rem;
  color: var(--color-ink-soft);
  max-width: 580px;
  margin: 0 0 var(--space-2);
}
.hero p:last-of-type { margin-bottom: var(--space-4); }

/* ---------- Ticker / marquee ---------- */
@keyframes tickerScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.service-ticker-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin: 0 0 var(--space-4);
}
.service-ticker {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.ticker-track {
  display: flex;
  align-items: center;
  width: max-content;
  gap: 0.6rem;
  animation: tickerScroll 20s linear infinite;
}
.service-ticker.reverse .ticker-track { animation-direction: reverse; }
.service-ticker:hover .ticker-track { animation-play-state: paused; }
.ticker-track .tick-item {
  flex-shrink: 0;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  white-space: nowrap;
  padding: 0.45rem 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
}
.ticker-track .tick-dot { flex-shrink: 0; color: var(--color-accent-soft); }
@media (prefers-reduced-motion: reduce) {
  .ticker-track, .ref-ticker-track { animation: none !important; }
}

/* ---------- Motion divider ---------- */
.motion-divider {
  width: 0;
  height: 2px;
  margin: var(--space-6) auto 0;
  background: linear-gradient(90deg, transparent, var(--color-accent-soft), transparent);
  opacity: 0;
  transition: width 1s var(--ease), opacity 1s var(--ease);
}
.motion-divider.in { width: 280px; opacity: 1; }

.hero-mark {
  position: absolute;
  top: 50%;
  right: -4%;
  transform: translateY(-50%);
  display: flex;
  align-items: flex-end;
  pointer-events: none;
  z-index: 0;
  animation: markFloat 8s ease-in-out infinite;
}
.hero-mark .mark-a {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(14rem, 32vw, 30rem);
  line-height: 0.8;
  user-select: none;
  background: linear-gradient(110deg, var(--color-surface) 35%, var(--color-accent-soft) 48%, var(--color-surface) 61%);
  background-size: 320% 100%;
  background-position: 180% 0;
  -webkit-background-clip: text;
  background-clip: text;
  color: var(--color-surface);
  animation: markShimmer 7s ease-in-out infinite;
}
@supports (-webkit-background-clip: text) or (background-clip: text) {
  .hero-mark .mark-a { color: transparent; }
}
@keyframes markShimmer {
  0%, 20% { background-position: 180% 0; }
  70%, 100% { background-position: -60% 0; }
}
.hero-mark .mark-dot {
  width: clamp(18px, 2.2vw, 34px);
  height: clamp(18px, 2.2vw, 34px);
  border-radius: 50%;
  background: var(--color-accent-soft);
  margin: 0 0 clamp(16px, 3vw, 38px) clamp(4px, 1vw, 10px);
  animation: markDotPulse 3.4s ease-in-out infinite;
}
@media (max-width: 640px) {
  .hero-mark { top: 42%; right: -10%; }
  .hero-mark .mark-a { font-size: clamp(10rem, 58vw, 18rem); }
  .hero-mark .mark-dot { width: 18px; height: 18px; margin-bottom: 14px; }
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--color-accent-soft); }
.card-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--color-accent-tint);
  color: var(--color-accent-soft);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-3);
  font-size: 1.25rem;
}
.card h3 { font-size: 1.125rem; margin-bottom: 0.6rem; }
.card p { color: var(--color-ink-soft); font-size: 0.875rem; margin: 0; }

.grid {
  display: grid;
  gap: var(--space-3);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Why section ---------- */
.why-lede {
  font-size: 1.3125rem;
  line-height: 1.6;
  max-width: 740px;
  margin-bottom: var(--space-2);
}
.why-sub {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-ink-soft);
  max-width: 640px;
  margin: 0 0 var(--space-5);
}
@media (max-width: 860px) {
  .grid-4.why-cards { grid-template-columns: repeat(2, 1fr) !important; }
  .why-cards .card h3 { font-size: 1rem; }
  .why-cards .card p { font-size: 0.8125rem; }
}
.why-lede .highlight { color: var(--color-accent-soft); }

.compare-wrap {
  overflow-x: auto;
  margin: var(--space-5) 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
table.compare {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  min-width: 560px;
}
table.compare th, table.compare td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
  vertical-align: top;
}
table.compare thead th {
  font-family: var(--font-en);
  font-weight: 700;
  color: var(--color-ink-faint);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--color-bg-alt);
}
table.compare tbody th {
  font-weight: 600;
  color: var(--color-ink-soft);
  width: 28%;
}
table.compare td.ours { background: var(--color-accent-tint); color: var(--color-accent-soft); font-weight: 600; }
table.compare tr:last-child td, table.compare tr:last-child th { border-bottom: none; }

/* ---------- Timeline (moved to page bottom) ---------- */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}
.timeline-item {
  border-left: 2px solid var(--color-accent-soft);
  padding-left: var(--space-3);
  transition-delay: calc(var(--i, 0) * 0.12s);
}
.timeline-item:nth-child(1) { --i: 0; }
.timeline-item:nth-child(2) { --i: 1; }
.timeline-item:nth-child(3) { --i: 2; }
.timeline-item:nth-child(4) { --i: 3; }
.timeline-item .yr { font-family: var(--font-en); font-weight: 700; color: var(--color-accent-soft); font-size: 1.125rem; margin-bottom: 0.3rem; }
.timeline-item p { color: var(--color-ink-soft); font-size: 0.875rem; margin: 0; }
.timeline-quote {
  margin-top: var(--space-5);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.7;
  color: var(--color-ink-soft);
  padding: var(--space-4);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  max-width: 820px;
}

/* ---------- How we work cards ---------- */
.work-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.work-card .tag {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-soft);
  margin-bottom: 0.75rem;
}
.work-card h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
.work-card p.desc { color: var(--color-ink-soft); font-size: 0.875rem; margin-bottom: var(--space-3); flex-grow: 1; }
.work-card .cat-tags { margin-bottom: var(--space-3); }
.work-card .meta {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
  margin-bottom: var(--space-3);
  font-size: 0.8125rem;
}
.work-card .meta dt { color: var(--color-ink-faint); margin-bottom: 0.15rem; }
.work-card .meta dd { margin: 0 0 0.75rem; font-weight: 600; }
.work-card .meta dd:last-child { margin-bottom: 0; }

/* ---------- Industry — flat text cards (home, auto-sliding ticker) ---------- */
.flat-ref-caption {
  margin-top: 0.9rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
}
.flat-ref-card {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.15rem;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}
.flat-ref-card:hover { transform: translateY(-3px); border-color: var(--color-accent-soft); }
.flat-ref-card .cat { display: block; font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.04em; color: var(--color-accent-soft); margin-bottom: 0.4rem; }
.flat-ref-card h4 { font-size: 0.9375rem; margin-bottom: 0.3rem; }
.flat-ref-card p { font-size: 0.8125rem; color: var(--color-ink-soft); margin: 0; }
.flat-ref-card.more {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink-faint);
  font-weight: 700;
  font-size: 1.375rem;
  letter-spacing: 0.1em;
  background: var(--color-bg-alt);
  border-style: dashed;
}

.ref-ticker-wrap { display: flex; flex-direction: column; gap: 0.8rem; }
.ref-ticker-row {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
}
.ref-ticker-track {
  display: flex;
  width: max-content;
  gap: 0.9rem;
  animation: tickerScroll linear infinite;
}
.ref-ticker-row:hover .ref-ticker-track { animation-play-state: paused; }
.ref-ticker-row.reverse .ref-ticker-track { animation-direction: reverse; }
.ref-ticker-track .flat-ref-card { flex-shrink: 0; width: 230px; }
.ref-ticker-row.row3-mobile-only { display: none; }
@media (max-width: 860px) {
  .ref-ticker-row.row3-mobile-only { display: block; }
  .ref-ticker-track .flat-ref-card { width: 190px; padding: 0.9rem 1rem; }
}

.stat-highlight {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: var(--color-accent-tint);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.stat-figure {
  flex-shrink: 0;
  text-align: center;
  padding-right: var(--space-5);
  border-right: 1px solid var(--color-border);
}
.stat-number {
  display: block;
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-accent-soft);
  line-height: 1;
}
.stat-label {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-ink-soft);
}
.stat-footnote {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.6875rem;
  color: var(--color-ink-faint);
}
.stat-desc { font-size: 0.9375rem; color: var(--color-ink-soft); line-height: 1.7; margin: 0; }
.stat-desc strong { color: var(--color-accent-soft); }
@media (max-width: 640px) {
  .stat-highlight { flex-direction: column; align-items: flex-start; gap: var(--space-3); }
  .stat-figure { border-right: none; border-bottom: 1px solid var(--color-border); padding-right: 0; padding-bottom: var(--space-3); width: 100%; text-align: left; }
}

/* ---------- Industry reference cards (industry.html, text-only) ---------- */
.ref-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}
.ref-card:hover { border-color: var(--color-accent-soft); }
.badge-row { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 0.6rem; }
.badge {
  font-family: var(--font-en);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-ink-soft);
}
.badge.global { background: var(--color-accent); color: #fff; }
.badge.imc { background: #B8541F; color: #fff; }
.ref-body .cat { font-size: 0.75rem; color: var(--color-accent-soft); font-weight: 700; margin-bottom: 0.3rem; }
.ref-body h3 { font-size: 1.0625rem; margin-bottom: 0.4rem; }
.ref-body p { color: var(--color-ink-soft); font-size: 0.8125rem; margin: 0; }

/* ---------- Process ---------- */
.process-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-2);
  counter-reset: step;
}
.process-step {
  position: relative;
  padding-top: var(--space-4);
}
.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-accent-soft);
  display: block;
  margin-bottom: 0.75rem;
}
.process-step h4 { font-size: 1rem; margin-bottom: 0.4rem; }
.process-step p { font-size: 0.8125rem; color: var(--color-ink-soft); margin: 0; }
.process-step p.small-note { font-size: 0.6875rem; color: var(--color-ink-faint); margin-top: 0.5rem; }
.process-step:not(:first-child) { border-top: 2px solid var(--color-border); }

/* ---------- Pricing table ---------- */
.price-table { width: 100%; border-collapse: collapse; background: var(--color-surface); }
.price-table th, .price-table td { padding: 1.1rem 1.25rem; border-bottom: 1px solid var(--color-border); text-align: left; font-size: 0.875rem; }
.price-table thead th { background: var(--color-accent); color: #fff; font-size: 0.8125rem; letter-spacing: 0.04em; }
.price-table tbody tr:last-child td { border-bottom: none; }
.price-table tbody th { font-weight: 700; }

/* ---------- FAQ ---------- */
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-q {
  width: 100%;
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.35rem 0;
  text-align: left;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-ink);
}
.faq-q .plus {
  flex-shrink: 0;
  width: 24px; height: 24px;
  position: relative;
  margin-left: var(--space-3);
}
.faq-q .plus::before, .faq-q .plus::after {
  content: "";
  position: absolute;
  background: var(--color-accent-soft);
  transition: transform 0.25s var(--ease);
}
.faq-q .plus::before { top: 50%; left: 0; width: 100%; height: 2px; margin-top: -1px; }
.faq-q .plus::after { left: 50%; top: 0; height: 100%; width: 2px; margin-left: -1px; }
.faq-item.open .plus::after { transform: rotate(90deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s var(--ease);
}
.faq-a-inner { padding-bottom: 1.35rem; color: var(--color-ink-soft); font-size: 0.875rem; max-width: 760px; }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5);
  text-align: center;
}
.cta-banner h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin-bottom: 0.75rem;
}
.cta-banner p { color: rgba(255,255,255,0.78); font-size: 0.9375rem; margin-bottom: var(--space-4); }
.cta-banner .btn-primary { background: #fff; color: var(--color-accent); }
.cta-banner .btn-primary:hover { background: var(--color-accent-soft); color: var(--color-bg); }
.email-copy {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: var(--space-3);
  font-family: var(--font-en);
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.85);
  background: rgba(255,255,255,0.1);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.25);
}
.email-copy button {
  background: none; border: none; color: #fff; font-weight: 700; font-size: 0.8125rem;
  text-decoration: underline;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-5) 0 var(--space-4);
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}
.footer-info p { margin: 0.2rem 0; font-size: 0.8125rem; color: var(--color-ink-soft); }
.footer-info p.company { font-weight: 700; color: var(--color-ink); margin-bottom: 0.5rem; }
.footer-info p.footer-brand {
  font-family: var(--font-en);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin: 0 0 1rem;
}
.footer-nav { display: flex; gap: var(--space-4); }
.footer-nav a { font-size: 0.875rem; color: var(--color-ink-soft); }
.footer-nav a:hover { color: var(--color-accent-soft); }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
  font-size: 0.8125rem;
  color: var(--color-ink-faint);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- Sub-page hero ---------- */
.page-hero {
  padding: var(--space-6) 0 var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.page-hero h1 { font-size: clamp(2rem, 4vw, 2.75rem); margin-bottom: 0.75rem; }
.page-hero p { color: var(--color-ink-soft); font-size: 1rem; max-width: 620px; }
.breadcrumb { font-size: 0.8125rem; color: var(--color-ink-faint); margin-bottom: var(--space-3); }
.breadcrumb a { color: var(--color-ink-faint); }
.breadcrumb a:hover { color: var(--color-accent-soft); }

/* ---------- Service page ---------- */
.service-block {
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--color-border);
}
.service-block:last-of-type { border-bottom: none; }
.lede-stack { margin-bottom: var(--space-3); }
.lede-stack p { margin: 0 0 0.4rem; }
.lede-stack p:last-child { margin-bottom: 0; }
.service-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}
.service-head .tag {
  font-family: var(--font-en);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-soft);
  margin-bottom: 0.5rem;
  display: block;
}
.service-head h2 { font-size: clamp(1.75rem, 3vw, 2.25rem); }
.fit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); margin: var(--space-4) 0; }
.fit-box { border-radius: var(--radius-md); padding: var(--space-3); }
.fit-box.yes { background: var(--color-accent-tint); }
.fit-box.no { background: var(--color-bg-alt); }
.fit-box .label { font-weight: 700; font-size: 0.875rem; margin-bottom: 0.5rem; display: block; }
.fit-box.yes .label { color: var(--color-accent-soft); }
.fit-box.no .label { color: var(--color-ink-faint); }
.fit-box li { font-size: 0.8125rem; color: var(--color-ink-soft); padding: 0.25rem 0; }

.category-list { display: grid; gap: var(--space-2); margin: var(--space-4) 0; }
.category-item {
  display: grid;
  grid-template-columns: 1fr 2.3fr;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  align-items: start;
}
.category-item h4 { font-size: 1rem; margin-bottom: 0.3rem; }
.category-item .num { color: var(--color-accent-soft); font-family: var(--font-en); font-weight: 700; }
.category-item p { font-size: 0.875rem; color: var(--color-ink-soft); margin: 0; }
.cat-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0; padding: 0; list-style: none; }
.cat-tags li {
  font-size: 0.8125rem;
  color: var(--color-ink-soft);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
}

.imc-box {
  margin-top: var(--space-4);
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-4);
}
.imc-box h4 { margin-bottom: 0.5rem; }
.imc-box p { color: rgba(255,255,255,0.82); margin: 0 0 var(--space-2); font-size: 0.875rem; }
.imc-example {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.9rem;
  font-size: 0.875rem;
  color: #fff;
}

.curriculum {
  margin-top: var(--space-3);
  display: grid;
  gap: var(--space-2);
}
.curriculum-course {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  background: var(--color-surface);
}
.curriculum-course h4 { margin-bottom: 0.4rem; }
.curriculum-course .course-sub { font-size: 0.8125rem; color: var(--color-accent-soft); margin: 0 0 0.75rem; }
.small-note { font-size: 0.75rem; color: var(--color-ink-faint); margin: 0.4rem 0 0; }
.curriculum-course ol { margin: 0; padding-left: 1.1rem; }
.curriculum-course li { font-size: 0.8125rem; color: var(--color-ink-soft); padding: 0.3rem 0; }
.curriculum-course li b { color: var(--color-ink); }

.cost-compare { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); margin-top: var(--space-3); }
.cost-box { border-radius: var(--radius-md); padding: var(--space-3); border: 1px solid var(--color-border); background: var(--color-surface); }
.cost-box.highlight { border-color: var(--color-accent-soft); background: var(--color-accent-tint); }
.cost-box .title { font-weight: 700; margin-bottom: 0.5rem; display: block; }
.cost-box li { font-size: 0.8125rem; color: var(--color-ink-soft); padding: 0.2rem 0; }

.tier-list {
  margin: var(--space-3) 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface);
  max-width: 480px;
}
.tier-list li { padding: 0.9rem 1.1rem; border-bottom: 1px solid var(--color-border); }
.tier-list li:last-child { border-bottom: none; }
.tier-row { display: flex; justify-content: space-between; align-items: baseline; font-size: 0.9375rem; }
.tier-row .tier-label { font-weight: 700; color: var(--color-ink); }
.tier-row .tier-price { color: var(--color-accent-soft); font-weight: 600; }
.tier-note { margin-top: 0.25rem; font-size: 0.8125rem; color: var(--color-ink-faint); }

/* ---------- Inquiry modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 200;
}
.modal-overlay[hidden] { display: none; }
.modal-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  max-width: 420px;
  width: 100%;
  position: relative;
  box-shadow: var(--shadow-md);
}
.modal-close {
  position: absolute;
  top: 1rem; right: 1rem;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: none;
  color: var(--color-ink-soft);
  font-size: 1.25rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-close:hover { background: var(--color-border); color: var(--color-ink); }
.modal-box h3 { font-size: 1.25rem; margin-bottom: 0.6rem; padding-right: 2rem; }
.modal-desc { font-size: 0.875rem; color: var(--color-ink-soft); margin-bottom: var(--space-3); }
.modal-template { margin: 0 0 var(--space-3); padding-left: 1.1rem; }
.modal-template li { font-size: 0.8125rem; color: var(--color-ink-soft); padding: 0.15rem 0; }
.modal-email {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 0.75rem 1rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  margin-bottom: var(--space-3);
}
.modal-email span { font-family: var(--font-en); font-size: 0.9375rem; color: var(--color-ink); }
.modal-email button {
  background: var(--color-accent-tint);
  color: var(--color-accent-soft);
  border: none;
  font-weight: 700;
  font-size: 0.8125rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
}
.modal-email button:hover { background: var(--color-accent); color: #fff; }

/* ---------- Industry page filter ---------- */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: var(--space-4) 0 var(--space-5);
}
.filter-tab {
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  transition: all 0.2s var(--ease);
}
.filter-tab:hover { border-color: var(--color-accent-soft); color: var(--color-accent-soft); }
.filter-tab.active { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }

.industry-group { margin-bottom: var(--space-6); transition: opacity 0.25s var(--ease), transform 0.25s var(--ease); }
.industry-group-title { font-size: 1.375rem; margin-bottom: var(--space-3); display: flex; align-items: center; gap: 0.6rem; }
.industry-group-title .count { font-family: var(--font-en); font-size: 0.8125rem; color: var(--color-ink-faint); font-weight: 500; }

.ref-link-list { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; }
.ref-link-list a {
  font-size: 0.8125rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-ink-soft);
}
.ref-link-list a:hover { background: var(--color-accent-tint); color: var(--color-accent-soft); }

/* ---------- Mobile ---------- */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-3) 1.5rem var(--space-4);
    gap: var(--space-2);
  }
  .nav-item { position: static; padding-bottom: 0; margin-bottom: 0; }
  .nav-dropdown {
    position: static;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    box-shadow: none;
    border: none;
    background: none;
    padding: 0.2rem 0 0;
    margin-top: 0.2rem;
    min-width: 0;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
  }
  .nav-dropdown a { padding: 0.4rem 0; font-size: 0.8125rem; font-weight: 400; color: var(--color-ink-faint); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .process-row { grid-template-columns: repeat(2, 1fr); gap: var(--space-4) var(--space-3); }
  .process-step { padding-top: var(--space-2); }
  .process-step:not(:first-child) { border-top: none; }
  .process-step:nth-child(n+3) { border-top: 2px solid var(--color-border); padding-top: var(--space-4); }
  .fit-grid { grid-template-columns: 1fr; }
  .category-item { grid-template-columns: 1fr; }
  .cost-compare { grid-template-columns: 1fr; }
  .footer-grid { flex-direction: column; }
  table.compare { min-width: 100%; }
  .compare-wrap { overflow-x: auto; }
  .cta-banner { padding: var(--space-5) var(--space-3); }
}

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  border: none;
  font-size: 1.125rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), background 0.2s var(--ease);
  z-index: 150;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { background: #3c6049; }
@media (max-width: 640px) {
  .back-to-top { right: 1rem; bottom: 1rem; width: 42px; height: 42px; }
}

/* ---------- Floating inquiry button ---------- */
.floating-inquiry {
  position: fixed;
  left: 1.5rem;
  bottom: 1.5rem;
  z-index: 150;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.15rem;
  border-radius: 999px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  font-family: var(--font-kr);
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}
.floating-inquiry svg { width: 18px; height: 18px; flex-shrink: 0; }
.floating-inquiry:hover { background: #3c6049; transform: translateY(-1px); }
@media (max-width: 640px) {
  .floating-inquiry { left: 1rem; bottom: 1rem; padding: 0.7rem 1rem; font-size: 0.8125rem; }
}