/* ================================================================
   올바른비즈 (OB BIZ) - 완전 리디자인 v3
   PC & 모바일 완전 최적화
   동양인 이미지 적용
================================================================ */

/* ── CSS 변수 ── */
:root {
  --primary:       #1a56e8;
  --primary-dark:  #0d3bb5;
  --primary-light: #4f85f4;
  --accent:        #e8a020;
  --accent-light:  #f5c05a;
  --dark:          #0f172a;
  --dark2:         #1e293b;
  --dark3:         #334155;
  --text:          #1e293b;
  --text-sub:      #64748b;
  --text-light:    #94a3b8;
  --bg:            #ffffff;
  --bg-gray:       #f8fafc;
  --bg-gray2:      #f1f5f9;
  --border:        #e2e8f0;
  --white:         #ffffff;
  --shadow-sm:     0 2px 8px rgba(0,0,0,.06);
  --shadow:        0 4px 24px rgba(0,0,0,.09);
  --shadow-lg:     0 12px 48px rgba(0,0,0,.14);
  --shadow-xl:     0 24px 80px rgba(0,0,0,.18);
  --radius:        12px;
  --radius-lg:     20px;
  --radius-xl:     28px;
  --trans:         .3s ease;
  --font:          'Noto Sans KR', sans-serif;
}

/* ── 리셋 ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.7; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; transition: var(--trans); }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: var(--font); }


/* ── 유틸 ── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 96px 0; }
.section-gray { background: var(--bg-gray); }
.section-gray2 { background: var(--bg-gray2); }
.section-dark { background: var(--dark); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(26,86,232,.08);
  border: 1px solid rgba(26,86,232,.18);
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 18px;
}
.tag-gold {
  color: var(--accent);
  background: rgba(232,160,32,.10);
  border-color: rgba(232,160,32,.22);
}

.sec-header { text-align: center; margin-bottom: 60px; }
.sec-title {
  font-size: clamp(26px, 3.8vw, 44px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -1px;
  color: var(--dark);
  margin-bottom: 16px;
}
.sec-title-white { color: var(--white) !important; }
.sec-desc {
  font-size: clamp(15px, 1.8vw, 17px);
  color: var(--text-sub);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.75;
}
.sec-desc-white { color: rgba(255,255,255,.65) !important; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: 9px;
  font-family: var(--font);
  font-weight: 700;
  font-size: 15px;
  transition: var(--trans);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
  color: #0f172a;
  box-shadow: 0 4px 20px rgba(245,158,11,.50);
  font-weight: 800;
}
.btn-primary:hover { background: linear-gradient(135deg, #fbbf24, #fde68a); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(245,158,11,.55); }
.btn-white {
  background: rgba(255,255,255,.18);
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,.55);
  backdrop-filter: blur(10px);
  font-weight: 700;
}
.btn-white:hover { background: rgba(255,255,255,.28); border-color: rgba(255,255,255,.90); transform: translateY(-2px); }
.btn-blue {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 18px rgba(26,86,232,.32);
}
.btn-blue:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-lg { padding: 17px 34px; font-size: 16px; border-radius: 11px; }


/* ================================================================
   HEADER
================================================================ */
#header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  transition: background .35s, box-shadow .35s, backdrop-filter .35s;
}
#header.scrolled {
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(16px);
  box-shadow: 0 2px 20px rgba(0,0,0,.08);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  height: 70px;
}

/* 로고 */
.nav-logo { display: flex; align-items: center; gap: 10px; }
.logo-img { height: 40px; width: auto; object-fit: contain; }
.logo-text {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.5px;
  color: var(--white);
  transition: var(--trans);
}
#header.scrolled .logo-text { color: var(--dark); }

/* 메뉴 */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 15px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,.88);
  border-radius: 8px;
  transition: var(--trans);
}
.nav-link:hover { background: rgba(255,255,255,.15); color: var(--white); }
#header.scrolled .nav-link { color: var(--text); }
#header.scrolled .nav-link:hover { background: var(--bg-gray); color: var(--primary); }

/* CTA 버튼 */
.nav-cta {
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--accent);
  color: var(--dark) !important;
  font-weight: 700;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: 8px;
  box-shadow: 0 3px 12px rgba(232,160,32,.32);
  transition: var(--trans);
}
.nav-cta:hover { background: var(--accent-light); transform: translateY(-1px); }

/* 햄버거 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--trans);
}
#header.scrolled .hamburger span { background: var(--dark); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


/* ================================================================
   HERO SECTION
================================================================ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* 배경 이미지 */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 25%;
}
/* 오버레이 - 왼쪽 어둡게, 오른쪽은 약간 밝게 */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    rgba(4,8,28,.80) 0%,
    rgba(6,14,45,.62) 42%,
    rgba(10,20,58,.35) 72%,
    rgba(4,8,28,.50) 100%
  );
}
/* 하단 그라디언트 */
.hero-gradient-bottom {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
  z-index: 2;
  pointer-events: none;
}
/* 파티클 */
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

/* Hero 콘텐츠 */
.hero-body {
  position: relative;
  z-index: 3;
  width: 100%;
  padding: 140px 24px 100px;
  max-width: 1160px;
  margin: 0 auto;
}

/* 배지 */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245,192,90,.15);
  border: 1px solid rgba(245,192,90,.40);
  backdrop-filter: blur(12px);
  color: #fde68a;
  font-size: 13px;
  font-weight: 700;
  padding: 9px 20px;
  border-radius: 50px;
  margin-bottom: 28px;
  letter-spacing: .5px;
  text-shadow: 0 1px 4px rgba(0,0,0,.3);
}
.hero-badge .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #4ade80;
  flex-shrink: 0;
  animation: pulse-dot 2s infinite;
  box-shadow: 0 0 6px rgba(74,222,128,.8);
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.4); }
}

/* 제목 */
.hero-title {
  font-size: clamp(36px, 5.5vw, 72px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -2px;
  color: #ffffff;
  margin-bottom: 22px;
  text-shadow: 0 2px 16px rgba(0,0,0,.55), 0 8px 40px rgba(0,0,0,.35);
}
.hero-title .gold {
  color: #fbbf24;
  text-shadow: 0 2px 20px rgba(251,191,36,.45), 0 8px 40px rgba(0,0,0,.35);
}

/* 부제 */
.hero-sub {
  font-size: clamp(15px, 2vw, 19px);
  color: rgba(255,255,255,.92);
  line-height: 1.85;
  margin-bottom: 44px;
  max-width: 580px;
  text-shadow: 0 1px 8px rgba(0,0,0,.50);
  font-weight: 400;
}

/* 버튼 그룹 */
.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 72px;
}

/* 핵심가치 카드 */
.hero-values {
  display: flex;
  gap: 0;
  background: rgba(10,18,50,.55);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 18px;
  padding: 22px 12px;
  max-width: 680px;
  flex-wrap: wrap;
  box-shadow: 0 8px 32px rgba(0,0,0,.25);
}
.hero-val {
  flex: 1;
  min-width: 130px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 10px 14px;
  position: relative;
}
.hero-val + .hero-val::before {
  content: '';
  position: absolute;
  left: 0; top: 15%; bottom: 15%;
  width: 1px;
  background: rgba(255,255,255,.22);
}
.hero-val i { font-size: 22px; color: #fbbf24; margin-bottom: 4px; filter: drop-shadow(0 0 6px rgba(251,191,36,.5)); }
.hero-val strong { font-size: 14px; font-weight: 800; color: #ffffff; letter-spacing: -.2px; }
.hero-val span { font-size: 11px; color: rgba(255,255,255,.65); letter-spacing: .5px; }

/* 스크롤 화살표 */
.scroll-arrow {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.28);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.80);
  font-size: 15px;
  animation: float-arrow 2.4s ease-in-out infinite;
  transition: var(--trans);
}
.scroll-arrow:hover { background: rgba(255,255,255,.25); color: var(--white); }
@keyframes float-arrow {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(9px); }
}


/* ================================================================
   ABOUT SECTION
================================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

/* 이미지 사이드 */
.about-img-side { position: relative; }
.about-img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  aspect-ratio: 4/3;
  position: relative;
}
.about-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.about-img-wrap:hover img { transform: scale(1.04); }

/* 플로팅 배지 */
.about-badge-float {
  position: absolute;
  bottom: -24px; right: -24px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 18px 24px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 2;
}
.about-badge-float .icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  font-size: 20px;
  flex-shrink: 0;
}
.about-badge-float .text strong { display: block; font-size: 16px; font-weight: 800; color: var(--dark); }
.about-badge-float .text span { font-size: 12.5px; color: var(--text-sub); }

/* 텍스트 사이드 */
.about-text-side .sec-title { text-align: left; }
.about-desc {
  font-size: 15.5px;
  color: var(--text-sub);
  line-height: 1.85;
  margin-bottom: 16px;
}
.about-desc strong { color: var(--primary); font-weight: 700; }

.about-checks {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.about-check {
  display: flex;
  align-items: center;
  gap: 11px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
}
.about-check .chk-icon {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: rgba(26,86,232,.09);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.about-check .chk-icon i { font-size: 12px; color: var(--primary); }


/* ================================================================
   SERVICES SECTION
================================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* 마지막 2개 카드 - 2열 중앙 정렬 */
.services-grid .srv-card:nth-child(4),
.services-grid .srv-card:nth-child(5) {
  grid-column: span 1;
}
.services-grid-bottom {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
  max-width: calc(66.66% + 8px);
  margin-left: auto;
  margin-right: auto;
}

.srv-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform .35s ease, box-shadow .35s ease;
  display: flex;
  flex-direction: column;
}
.srv-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

/* 카드 이미지 */
.srv-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
}
.srv-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.srv-card:hover .srv-img img { transform: scale(1.06); }

/* 컬러 탑 바 */
.srv-img::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 4px;
}
.srv-card.c-blue .srv-img::after   { background: linear-gradient(90deg, #1a56e8, #4f85f4); }
.srv-card.c-orange .srv-img::after { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.srv-card.c-green .srv-img::after  { background: linear-gradient(90deg, #10b981, #34d399); }
.srv-card.c-purple .srv-img::after { background: linear-gradient(90deg, #8b5cf6, #a78bfa); }
.srv-card.c-teal .srv-img::after   { background: linear-gradient(90deg, #0ea5e9, #38bdf8); }

/* 카드 아이콘 뱃지 */
.srv-icon-badge {
  position: absolute;
  bottom: -18px; left: 20px;
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  color: var(--white);
  box-shadow: 0 4px 12px rgba(0,0,0,.18);
  z-index: 2;
}
.srv-card.c-blue .srv-icon-badge   { background: linear-gradient(135deg, #1a56e8, #0d3bb5); }
.srv-card.c-orange .srv-icon-badge { background: linear-gradient(135deg, #f59e0b, #d97706); }
.srv-card.c-green .srv-icon-badge  { background: linear-gradient(135deg, #10b981, #059669); }
.srv-card.c-purple .srv-icon-badge { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.srv-card.c-teal .srv-icon-badge   { background: linear-gradient(135deg, #0ea5e9, #0284c7); }

/* 카드 바디 */
.srv-body {
  padding: 32px 24px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.srv-body h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 10px;
  line-height: 1.35;
}
.srv-body p {
  font-size: 13.5px;
  color: var(--text-sub);
  line-height: 1.75;
  margin-bottom: 18px;
  flex: 1;
}
.srv-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-top: auto;
}
.srv-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-sub);
  font-weight: 500;
}
.srv-list li i { font-size: 11px; color: var(--primary-light); flex-shrink: 0; }


/* ================================================================
   STRENGTHS SECTION
================================================================ */
.str-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.str-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.09);
  border-radius: var(--radius-lg);
  padding: 28px 26px;
  transition: var(--trans);
}
.str-card:hover {
  background: rgba(255,255,255,.08);
  transform: translateY(-4px);
  border-color: rgba(255,255,255,.15);
}
.str-icon {
  width: 52px; height: 52px;
  flex-shrink: 0;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  color: var(--white);
  box-shadow: 0 4px 16px rgba(26,86,232,.3);
}
.str-text h3 { font-size: 17px; font-weight: 800; color: var(--white); margin-bottom: 8px; }
.str-text p  { font-size: 14px; color: rgba(255,255,255,.60); line-height: 1.75; }


/* ================================================================
   WHY BANNER STRIP
================================================================ */
.why-strip {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  padding: 56px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.why-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.why-strip-inner { position: relative; max-width: 760px; margin: 0 auto; }
.why-strip h2 { font-size: clamp(22px, 3.5vw, 36px); font-weight: 900; color: var(--white); margin-bottom: 12px; }
.why-strip p { font-size: 16px; color: rgba(255,255,255,.80); margin-bottom: 28px; }
.why-strip .btn { margin: 0 auto; }


/* ================================================================
   CONTACT SECTION
================================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border);
}
.contact-card-title {
  font-size: 22px;
  font-weight: 900;
  color: var(--dark);
  margin-bottom: 32px;
  padding-bottom: 22px;
  border-bottom: 2px solid var(--bg-gray2);
  display: flex;
  align-items: center;
  gap: 10px;
}
.contact-card-title i { color: var(--primary); }

.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 26px;
}
.ci-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  font-size: 17px;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(26,86,232,.25);
}
.ci-text strong {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 3px;
}
.ci-text p { font-size: 15.5px; font-weight: 600; color: var(--dark); margin-bottom: 1px; line-height: 1.5; }
.ci-text span { font-size: 12.5px; color: var(--text-sub); }

.contact-promise {
  display: flex;
  align-items: center;
  gap: 11px;
  background: rgba(26,86,232,.05);
  border: 1px solid rgba(26,86,232,.14);
  border-radius: 10px;
  padding: 15px 18px;
  font-size: 14px;
  color: var(--primary);
  margin-top: 6px;
}
.contact-promise i { font-size: 17px; flex-shrink: 0; }
.contact-promise strong { color: var(--primary); }

/* 오른쪽 인포 박스 */
.contact-info-box {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 100%);
  border-radius: var(--radius-xl);
  padding: 40px 36px;
  color: var(--white);
}
.contact-info-box h3 { font-size: 19px; font-weight: 800; margin-bottom: 22px; color: var(--white); }
.contact-info-box p { font-size: 14px; color: rgba(255,255,255,.65); line-height: 1.8; margin-bottom: 10px; display: flex; gap: 10px; align-items: flex-start; }
.contact-info-box p i { color: var(--accent-light); margin-top: 3px; flex-shrink: 0; }

.cib-divider { height: 1px; background: rgba(255,255,255,.10); margin: 24px 0; }

.cib-cta { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
.cib-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 14px;
  transition: var(--trans);
}
.cib-btn-primary { background: var(--accent); color: var(--dark); }
.cib-btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); }
.cib-btn-outline { border: 1.5px solid rgba(255,255,255,.25); color: var(--white); }
.cib-btn-outline:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.5); }


/* ================================================================
   FOOTER
================================================================ */
#footer {
  background: var(--dark);
  padding: 72px 0 36px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.6fr;
  gap: 56px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  margin-bottom: 32px;
}
.footer-logo-img { height: 36px; object-fit: contain; margin-bottom: 14px; filter: brightness(10); opacity: .85; }
.footer-brand-desc { font-size: 13.5px; color: rgba(255,255,255,.50); line-height: 1.8; }

.footer-col h4 { font-size: 14px; font-weight: 700; color: var(--white); margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 13.5px; color: rgba(255,255,255,.50); transition: var(--trans); }
.footer-col ul li a:hover { color: var(--accent-light); padding-left: 4px; }
.footer-col p { font-size: 13.5px; color: rgba(255,255,255,.50); display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px; line-height: 1.6; }
.footer-col p i { color: var(--primary-light); margin-top: 2px; flex-shrink: 0; font-size: 12px; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copy { font-size: 12.5px; color: rgba(255,255,255,.30); }
.footer-badges { display: flex; gap: 10px; }
.footer-badge {
  font-size: 11px;
  color: rgba(255,255,255,.35);
  border: 1px solid rgba(255,255,255,.10);
  padding: 4px 10px;
  border-radius: 50px;
}


/* ================================================================
   BACK TO TOP
================================================================ */
.back-top {
  position: fixed;
  bottom: 32px; right: 32px;
  z-index: 900;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-size: 17px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(26,86,232,.38);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .3s, transform .3s;
  border: none;
  cursor: pointer;
}
.back-top.show { opacity: 1; transform: translateY(0); }
.back-top:hover { background: var(--primary-dark); transform: translateY(-3px); }


/* ================================================================
   RESPONSIVE - TABLET (max 960px)
================================================================ */
@media (max-width: 960px) {
  .section { padding: 72px 0; }

  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-img-side { order: -1; }
  .about-badge-float { right: 0; bottom: -20px; }

  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid-bottom { max-width: 100%; grid-template-columns: repeat(2, 1fr); }

  .str-grid { grid-template-columns: 1fr; }

  .contact-grid { grid-template-columns: 1fr; }
  .contact-info-box { order: -1; }

  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .footer-top > :first-child { grid-column: 1 / -1; }
}


/* ================================================================
   RESPONSIVE - MOBILE (max 767px)
================================================================ */
@media (max-width: 767px) {
  .section { padding: 60px 0; }
  .container { padding: 0 18px; }

  /* 헤더 */
  .nav-cta { display: none; }
  .hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(255,255,255,.97);
    backdrop-filter: blur(14px);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 0 20px;
    gap: 0;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform .35s ease, opacity .3s ease;
    box-shadow: 0 8px 32px rgba(0,0,0,.12);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; }
  .nav-link { color: var(--text) !important; padding: 14px 22px; border-radius: 0; font-size: 15px; }
  .nav-link:hover { background: var(--bg-gray); color: var(--primary) !important; }

  /* Hero */
  .hero-body { padding: 110px 18px 80px; }
  .hero-title { letter-spacing: -1px; }
  .hero-btns { flex-direction: column; gap: 10px; }
  .hero-btns .btn { justify-content: center; width: 100%; }
  .hero-values { padding: 16px 8px; gap: 0; }
  .hero-val { min-width: 90px; padding: 8px 10px; }
  .hero-val i { font-size: 17px; }
  .hero-val strong { font-size: 12.5px; }
  .hero-val span { font-size: 10px; }

  /* About */
  .about-badge-float { right: 10px; bottom: -16px; padding: 12px 16px; }
  .about-badge-float .icon { width: 38px; height: 38px; font-size: 16px; }
  .about-badge-float .text strong { font-size: 14px; }

  /* Services */
  .services-grid { grid-template-columns: 1fr; }
  .services-grid-bottom { grid-template-columns: 1fr; max-width: 100%; }

  /* Strengths */
  .str-card { flex-direction: column; gap: 14px; }

  /* Contact */
  .contact-card { padding: 28px 22px; }
  .contact-info-box { padding: 28px 24px; }

  /* Footer */
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  /* Back to top */
  .back-top { bottom: 22px; right: 20px; }
}

@media (max-width: 400px) {
  .hero-values { flex-wrap: wrap; }
  .hero-val + .hero-val::before { display: none; }
  .hero-val { min-width: calc(50% - 8px); flex: none; }
}

/* 홈페이지 주소 강제 표시 */
.ci-text a {
  color: #e67e00 !important;
  font-weight: 800 !important;
  text-decoration: underline !important;
  font-size: 17px !important;
}
.ci-text a:visited,
.ci-text a:hover {
  color: #cc6600 !important;
}