/* ===================================================
   유비덤 리디자인 - 공통 스타일시트
   테마: 화이트 + 딥블루 클린
   =================================================== */

/* --- Google Fonts: Noto Sans KR --- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700;900&display=swap');

/* --- CSS 변수 (Design Tokens) --- */
:root {
  --primary:       #0B2447;   /* 딥 네이비 */
  --primary-mid:   #19376D;   /* 미드 블루 */
  --accent:        #2563EB;   /* 브라이트 블루 */
  --accent-light:  #3B82F6;
  --text-dark:     #0F172A;
  --text-mid:      #334155;
  --text-light:    #64748B;
  --bg:            #FFFFFF;
  --bg-soft:       #F8FAFC;
  --bg-card:       #FFFFFF;
  --border:        #E2E8F0;
  --shadow-sm:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:     0 4px 16px rgba(11,36,71,.10);
  --shadow-lg:     0 8px 32px rgba(11,36,71,.14);
  --radius-sm:     8px;
  --radius-md:     14px;
  --radius-lg:     20px;
  --nav-h:         72px;
  --transition:    .25s cubic-bezier(.4,0,.2,1);
}

/* --- 리셋 & 기본 --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text-dark);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

/* --- 스크롤바 --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-soft); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ===================================================
   네비게이션
   =================================================== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 999;
  transition: background var(--transition), box-shadow var(--transition);
  background: transparent;
}
.navbar.scrolled {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}
.navbar.scrolled .nav-logo,
.navbar.scrolled .nav-links a { color: var(--primary); }
.navbar.scrolled .nav-hamburger span { background: var(--primary); }
.navbar.dark-hero { background: transparent; }

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: .06em;
  color: #fff;
  transition: all var(--transition);
}
.nav-logo .logo-icon {
  width: 32px; height: 32px;
  margin-right: 6px;
  border-radius: 7px;
  background: linear-gradient(135deg, #3B82F6, #06B6D4);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(59,130,246,.5);
}
.nav-logo .logo-ubi { color: #fff; font-weight: 900; }
.nav-logo .logo-dom {
  background: linear-gradient(135deg, #60A5FA 0%, #38BDF8 50%, #34D399 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.navbar.scrolled .nav-logo .logo-icon {
  background: linear-gradient(135deg, var(--accent), #0EA5E9);
}
.navbar.scrolled .nav-logo .logo-ubi { color: var(--primary); }
.navbar.scrolled .nav-logo .logo-dom {
  background: linear-gradient(135deg, var(--accent), #0EA5E9);
  -webkit-background-clip: text;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  font-size: 1rem;
  font-weight: 600;
  color: rgba(255,255,255,.92);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  letter-spacing: .03em;
}
.nav-links a:hover { background: rgba(255,255,255,.12); color: #fff; }
.nav-links a.active { color: var(--accent-light); }
.navbar.scrolled .nav-links a:hover { background: var(--bg-soft); color: var(--accent); }

.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  border-radius: var(--radius-sm) !important;
  padding: 8px 18px !important;
}
.nav-cta:hover { background: var(--accent-light) !important; }
.navbar.scrolled .nav-cta { background: var(--accent) !important; color: #fff !important; }

/* 햄버거 */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}
.navbar.scrolled .nav-hamburger span { background: var(--primary); }

/* 모바일 메뉴 */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: rgba(255,255,255,.98);
  backdrop-filter: blur(16px);
  padding: 16px 24px 24px;
  box-shadow: var(--shadow-lg);
  z-index: 998;
}
.nav-mobile.open { display: block; }
.nav-mobile ul { list-style: none; }
.nav-mobile a {
  display: block;
  padding: 12px 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-dark);
  border-bottom: 1px solid var(--border);
}
.nav-mobile a:last-child { border-bottom: none; }

/* ===================================================
   히어로 공통
   =================================================== */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-mid) 50%, #1a4480 100%);
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-main {
  min-height: 100vh;
  max-height: 900px; /* 과도한 높이 방지 */
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(37,99,235,.25) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(59,130,246,.15) 0%, transparent 60%);
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: calc(var(--nav-h) + 60px) 24px 80px;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: .8rem;
  font-weight: 500;
  color: rgba(255,255,255,.9);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-label::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-light);
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 20px;
}
.hero h1 .highlight {
  background: linear-gradient(135deg, #60A5FA, #A5D7E8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,.75);
  max-width: 580px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-sub {
  min-height: 320px;
  text-align: center;
}
.hero-sub .hero-content {
  padding: calc(var(--nav-h) + 40px) 24px 60px;
}
.hero-sub h1 { font-size: clamp(1.8rem, 4vw, 3rem); margin-bottom: 12px; }
.hero-sub p { margin: 0 auto; text-align: center; }

/* ===================================================
   히어로 솔루션 패널 (UI 목업)
   =================================================== */
.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: calc(var(--nav-h) + 48px) 24px 72px;
  position: relative;
  z-index: 1;
}
.hero-panels {
  position: relative;
  height: 420px;
}
.ui-panel {
  position: absolute;
  background: rgba(255,255,255,.07);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 8px 32px rgba(0,0,0,.3);
  animation: floatPanel 6s ease-in-out infinite;
}
.ui-panel:nth-child(2) { animation-delay: -2s; }
.ui-panel:nth-child(3) { animation-delay: -4s; }
@keyframes floatPanel {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.panel-main {
  top: 0; left: 0; right: 0;
  z-index: 3;
}
.panel-mid {
  top: 140px; right: -20px;
  width: 240px;
  z-index: 2;
  animation-delay: -1.5s !important;
}
.panel-phone {
  bottom: 0; left: 10px;
  width: 130px;
  z-index: 4;
  animation-delay: -3s !important;
}
.panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.panel-dots { display: flex; gap: 4px; }
.panel-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}
.panel-title {
  font-size: .7rem;
  font-weight: 700;
  color: rgba(255,255,255,.6);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-left: auto;
}
.panel-badge {
  font-size: .65rem;
  font-weight: 700;
  background: rgba(52,211,153,.2);
  color: #34D399;
  padding: 2px 8px;
  border-radius: 100px;
  border: 1px solid rgba(52,211,153,.3);
}
/* 메트릭 그리드 */
.metric-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; margin-bottom: 12px; }
.metric-item {
  background: rgba(255,255,255,.06);
  border-radius: 8px;
  padding: 8px;
  text-align: center;
}
.metric-val { font-size: 1.1rem; font-weight: 800; color: #60A5FA; line-height: 1; margin-bottom: 3px; }
.metric-val.green { color: #34D399; }
.metric-val.amber { color: #FBBF24; }
.metric-lbl { font-size: .6rem; color: rgba(255,255,255,.5); }
/* 차트 바 */
.chart-bars { display: flex; align-items: flex-end; gap: 4px; height: 48px; }
.chart-bar {
  flex: 1;
  border-radius: 3px 3px 0 0;
  background: rgba(59,130,246,.5);
  transition: all .3s;
}
.chart-bar:hover { background: rgba(59,130,246,.9); }
/* 리스트 행 */
.list-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
  font-size: .7rem;
  color: rgba(255,255,255,.75);
}
.list-row:last-child { border-bottom: none; }
.status-dot { width: 6px; height: 6px; border-radius: 50%; margin-right: 6px; display: inline-block; }
/* 모바일 패널 */
.phone-screen { width: 100%; }
.phone-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
  font-size: .62rem;
  color: rgba(255,255,255,.7);
}
.phone-icon { font-size: .9rem; }

/* 반응형 */
@media (max-width: 900px) {
  .hero-split { grid-template-columns: 1fr; }
  .hero-panels { display: none; }
}

/* ===================================================
   버튼
   =================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  letter-spacing: .01em;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: #1D4ED8;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(37,99,235,.35);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,.4);
}
.btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.7);
}
.btn-sm { padding: 8px 18px; font-size: .85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

/* ===================================================
   컨테이너 & 레이아웃
   =================================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.section-bg { background: var(--bg-soft); }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.25;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}
.section-sub {
  font-size: 1rem;
  color: var(--text-light);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===================================================
   카드
   =================================================== */
.card-grid {
  display: grid;
  gap: 24px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.card-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}
.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.card p {
  font-size: .9rem;
  color: var(--text-light);
  line-height: 1.75;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: .875rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap var(--transition);
}
.card-link:hover { gap: 10px; }

/* 솔루션 카드 (대형) */
.solution-card {
  display: flex;
  flex-direction: column;
  padding: 36px;
  background: linear-gradient(145deg, var(--bg-card), var(--bg-soft));
}
.solution-card .card-icon { width: 64px; height: 64px; font-size: 1.8rem; }
.solution-card h3 { font-size: 1.3rem; }
.solution-card .tag {
  display: inline-block;
  background: rgba(37,99,235,.08);
  color: var(--accent);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
  width: fit-content;
}

/* ===================================================
   통계 배너
   =================================================== */
.stats-bar {
  background: linear-gradient(135deg, var(--primary), var(--primary-mid));
  padding: 64px 0;
  border-top: 1px solid rgba(255,255,255,.06);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item {
  padding: 24px 16px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  transition: background var(--transition);
}
.stat-item:hover { background: rgba(255,255,255,.1); }
.stat-item .num {
  font-size: 2.8rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 10px;
  letter-spacing: -.02em;
}
.stat-item .num span { color: var(--accent-light); }
.stat-item .label {
  font-size: .875rem;
  color: rgba(255,255,255,.65);
  font-weight: 400;
  line-height: 1.6;
}

/* ===================================================
   타임라인 (연혁)
   =================================================== */
.timeline {
  position: relative;
  padding-left: 40px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--border);
}
.timeline-item {
  position: relative;
  margin-bottom: 0;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.timeline-item:last-child { border-bottom: none; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -33px;
  top: 22px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--border);
  border: 2px solid var(--bg);
}
.timeline-item.highlight::before {
  background: var(--accent);
  width: 12px; height: 12px;
  left: -34px;
  top: 21px;
}
.timeline-year {
  font-size: .8rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: .04em;
  margin-bottom: 4px;
}
.timeline-item.highlight .timeline-content {
  font-weight: 600;
  color: var(--text-dark);
}
.timeline-content {
  font-size: .9rem;
  color: var(--text-mid);
}

.timeline-era {
  background: var(--primary);
  color: #fff;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 4px;
  display: inline-block;
  margin: 24px 0 8px;
}

/* ===================================================
   뉴스 카드
   =================================================== */
.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.news-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.news-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}
.news-card-body {
  padding: 20px;
}
.news-card-source {
  font-size: .75rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.news-card h4 {
  font-size: .95rem;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.5;
  margin-bottom: 12px;
}
.news-card a.link {
  font-size: .8rem;
  color: var(--accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.news-card a.link:hover { text-decoration: underline; }

/* ===================================================
   인증 카드
   =================================================== */
.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
}
.cert-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.cert-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}
.cert-card-body { padding: 16px; }
.cert-card h4 {
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 4px;
}
.cert-card p {
  font-size: .78rem;
  color: var(--text-light);
  margin-bottom: 10px;
}
.cert-card a {
  font-size: .78rem;
  color: var(--accent);
  font-weight: 600;
}

/* ===================================================
   페이지 브레드크럼
   =================================================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: rgba(255,255,255,.6);
  margin-bottom: 20px;
}
.breadcrumb a { color: rgba(255,255,255,.6); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { color: rgba(255,255,255,.3); }
.breadcrumb .current { color: rgba(255,255,255,.9); }

/* ===================================================
   특징 섹션 (아이콘 + 텍스트)
   =================================================== */
.feature-list {
  display: grid;
  gap: 32px;
}
.feature-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.feature-icon {
  flex-shrink: 0;
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(37,99,235,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}
.feature-text h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
}
.feature-text p {
  font-size: .9rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===================================================
   CTA 섹션
   =================================================== */
.cta-section {
  background: linear-gradient(135deg, var(--primary), var(--primary-mid));
  padding: 80px 0;
  text-align: center;
}
.cta-section h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.cta-section p {
  color: rgba(255,255,255,.7);
  font-size: 1rem;
  margin-bottom: 36px;
}

/* ===================================================
   푸터
   =================================================== */
footer {
  background: var(--primary);
  color: rgba(255,255,255,.7);
  padding: 56px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: .06em;
  margin-bottom: 12px;
}
.footer-logo .logo-icon {
  width: 28px; height: 28px;
  border-radius: 6px;
  background: linear-gradient(135deg, #3B82F6, #06B6D4);
  display: flex; align-items: center; justify-content: center;
  font-size: .85rem;
}
.footer-logo .logo-ubi { color: #fff; }
.footer-logo .logo-dom {
  background: linear-gradient(135deg, #60A5FA, #34D399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-desc { font-size: .875rem; line-height: 1.8; margin-bottom: 20px; }
.footer-contact { font-size: .875rem; line-height: 2; }
.footer-contact strong { color: #fff; }
.footer-col h5 {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  font-size: .875rem;
  color: rgba(255,255,255,.65);
  transition: color var(--transition);
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .8rem;
  color: rgba(255,255,255,.35);
}

/* ===================================================
   애니메이션 (fade-in on scroll)
   - JS가 없거나 실패해도 콘텐츠는 항상 보임
   =================================================== */
.fade-up {
  opacity: 1;
  transform: translateY(0);
  transition: opacity .6s ease, transform .6s ease;
}
/* JS가 로드되면 .js-ready 클래스 추가 후 애니메이션 적용 */
.js-ready .fade-up {
  opacity: 0;
  transform: translateY(24px);
}
.js-ready .fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.js-ready .fade-up:nth-child(2) { transition-delay: .08s; }
.js-ready .fade-up:nth-child(3) { transition-delay: .16s; }
.js-ready .fade-up:nth-child(4) { transition-delay: .24s; }

/* ===================================================
   전체 완성도 보완
   =================================================== */

/* 섹션 헤더 밑줄 포인트 */
.section-label {
  position: relative;
}
.section-label::after {
  content: '';
  display: block;
  width: 32px; height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin: 6px auto 0;
}

/* 카드 호버 강화 */
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #06B6D4);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  opacity: 0;
  transition: opacity var(--transition);
}
.card:hover::before { opacity: 1; }

/* section-header 여백 통일 */
.section-header { margin-bottom: 48px; }
.section-title { margin-bottom: 12px; }

/* CTA 버튼 강화 */
.cta-section .btn-primary {
  background: #fff;
  color: var(--primary);
  font-weight: 800;
}
.cta-section .btn-primary:hover {
  background: var(--accent-light);
  color: #fff;
  box-shadow: 0 8px 32px rgba(255,255,255,.2);
}

/* 솔루션 카드 태그 개선 */
.solution-card .tag {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(37,99,235,.1);
  color: var(--accent);
  border: 1px solid rgba(37,99,235,.15);
  margin-bottom: 16px;
  display: inline-block;
}

/* 히어로 텍스트 가독성 개선 */
.hero p { max-width: 520px; }
.hero-sub p { max-width: 600px; margin: 0 auto; }

/* 카드 그리드 반응형 간격 */
.card-grid { gap: 20px; }

/* 구분선 스타일 */
.section-bg { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* ===================================================
   반응형
   =================================================== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .hero-btns { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section { padding: 60px 0; }
  .grid-4 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}