/* ============================================================
   동양파킹시스템즈 — Direction A "신뢰·중후" Heritage
   ============================================================ */

/* --- Google Fonts Import --- */
@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=Noto+Serif+KR:wght@400;700;900&display=swap');

/* --- CSS Custom Properties --- */
:root {
  --navy:       #2D5188;
  --navy-deep:  #1A3A6B;
  --navy-light: #4173B5;
  --brass:      #B89060;
  --brass-dark: #9A7648;
  --brass-light:#D4AD7A;
  --text-strong:#15305A;
  --text-body:  #3B4453;
  --bg:         #FAFAF7;
  --surface:    #FFFFFF;
  --hairline:   #E0DDD2;
  --subtle:     #8A8B85;
  --font-sans:  'Pretendard', -apple-system, sans-serif;
  --font-serif: 'Noto Serif KR', 'Georgia', serif;
  --max-w:      1280px;
  --section-gap: 128px;
  --pad-desk:   80px;
  --pad-mob:    24px;
  --radius:     2px;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-desk);
}

/* ============================================================
   TOP UTILITY BAR
   ============================================================ */
.utility-bar {
  background: var(--navy);
  height: 36px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  position: relative;
  z-index: 100;
}

.utility-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.utility-emergency {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--brass-light);
  letter-spacing: 0.02em;
}

.utility-emergency span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.utility-emergency .pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4CAF50;
  animation: pulse-green 2s infinite;
  flex-shrink: 0;
}

@keyframes pulse-green {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

.utility-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.utility-nav a {
  font-size: 11px;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.03em;
  transition: color 0.2s;
}

.utility-nav a:hover {
  color: rgba(255,255,255,0.85);
}

.utility-nav .sep {
  width: 1px;
  height: 10px;
  background: rgba(255,255,255,0.2);
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--surface);
  border-bottom: 1px solid var(--hairline);
  height: 72px;
  display: flex;
  align-items: center;
  transition: box-shadow 0.3s;
}

.site-header.scrolled {
  box-shadow: 0 2px 16px rgba(10,30,63,0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

/* Logo */
.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  flex-shrink: 0;
}

.logo-ko {
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.02em;
}

.logo-en {
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 500;
  color: var(--brass);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
  justify-content: center;
}

.site-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  padding: 8px 16px;
  letter-spacing: -0.01em;
  position: relative;
  transition: color 0.2s;
  white-space: nowrap;
}

.site-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--brass);
  transform: scaleX(0);
  transition: transform 0.25s ease;
  transform-origin: left;
}

.site-nav a:hover {
  color: var(--navy);
}

.site-nav a:hover::after {
  transform: scaleX(1);
}

.site-nav a.active {
  color: var(--navy);
  font-weight: 700;
}

.site-nav a.active::after {
  transform: scaleX(1);
}

/* --- Nav Dropdown (mega menu) --- */
.site-nav .nav-item {
  position: relative;
}

.site-nav .nav-item > a .caret {
  display: inline-block;
  margin-left: 4px;
  font-size: 9px;
  color: var(--brass);
  transition: transform 0.2s;
}

.site-nav .nav-item:hover > a .caret,
.site-nav .nav-item:focus-within > a .caret {
  transform: rotate(180deg);
}

.site-nav .dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-top: 2px solid var(--brass);
  padding: 10px 0;
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 100;
  box-shadow: 0 10px 28px rgba(10, 30, 63, 0.10);
}

/* 라벨과 드롭다운 사이 6px 빈틈을 투명 다리로 메워 hover 끊김 방지 (커서 내려도 드롭다운 유지) */
.site-nav .dropdown::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 0;
  right: 0;
  height: 10px;
}

.site-nav .nav-item:hover .dropdown,
.site-nav .nav-item:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.site-nav .dropdown a {
  display: block;
  padding: 9px 22px;
  font-size: 13px;
  font-weight: 400;
  color: var(--text-body);
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
  letter-spacing: -0.01em;
}

.site-nav .dropdown a:hover {
  background: var(--bg);
  color: var(--navy);
  font-weight: 600;
}

.site-nav .dropdown a::after {
  display: none;
}

/* --- Mobile Nav Submenu --- */
.mobile-nav .nav-group {
  border-top: 1px solid var(--hairline);
  padding: 8px 0;
}

.mobile-nav .nav-group-title {
  display: block;
  padding: 12px 24px 6px;
  font-size: 11px;
  font-weight: 700;
  color: var(--brass);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mobile-nav .nav-group a {
  padding: 10px 32px;
  font-size: 14px;
  border-top: none;
}

/* Header CTA */
.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 9px 20px;
  border-radius: var(--radius);
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.btn:active { transform: translateY(1px); }

.btn-navy {
  background: var(--navy);
  color: var(--surface);
  border: 1.5px solid var(--navy);
}

.btn-navy:hover {
  background: #112952;
  border-color: #112952;
}

.btn-brass {
  background: var(--brass);
  color: var(--surface);
  border: 1.5px solid var(--brass);
}

.btn-brass:hover {
  background: var(--brass-dark);
  border-color: var(--brass-dark);
}

.btn-outline-white {
  background: transparent;
  color: var(--surface);
  border: 1.5px solid rgba(255,255,255,0.6);
}

.btn-outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.9);
}

.btn-outline-brass {
  background: transparent;
  color: var(--brass);
  border: 1.5px solid var(--brass);
}

.btn-outline-brass:hover {
  background: var(--brass);
  color: var(--surface);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav overlay */
.mobile-nav {
  display: none;
  position: fixed;
  top: 108px; /* utility + header */
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--surface);
  z-index: 80;
  flex-direction: column;
  padding: 32px var(--pad-mob);
  border-top: 1px solid var(--hairline);
  overflow-y: auto;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  font-size: 18px;
  font-weight: 600;
  color: var(--navy);
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline);
  letter-spacing: -0.01em;
}

.mobile-nav .mobile-cta {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: calc(100vh - 36px - 72px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--navy);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('img/photos/tower/tower1_2.jpg');
  background-size: cover;
  background-position: center 40%;
  filter: grayscale(40%) brightness(0.7);
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero-bg.loaded {
  transform: scale(1);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(10,30,63,0.82) 0%,
    rgba(10,30,63,0.65) 50%,
    rgba(10,30,63,0.45) 100%
  );
}

.hero-overlay-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, rgba(10,30,63,0.6), transparent);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 0;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.hero-eyebrow-line {
  width: 36px;
  height: 1px;
  background: var(--brass);
}

.hero-eyebrow span {
  font-size: 11px;
  font-weight: 600;
  color: var(--brass-light);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(44px, 5.5vw, 72px);
  font-weight: 900;
  color: var(--surface);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero h1 em {
  font-style: normal;
  color: var(--brass-light);
}

.hero-sub {
  font-size: clamp(15px, 1.5vw, 18px);
  color: rgba(255,255,255,0.78);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 44px;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: scroll-bounce 2s ease-in-out infinite;
}

.hero-scroll svg {
  animation: arrow-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

@keyframes arrow-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

/* ============================================================
   TRUST STRIP
   ============================================================ */
.trust-strip {
  background: var(--navy);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}

.trust-strip::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(184,144,96,0.4), transparent);
}

.trust-strip::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(184,144,96,0.4), transparent);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.trust-item {
  text-align: center;
  padding: 24px 32px;
  position: relative;
}

.trust-item + .trust-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: rgba(255,255,255,0.1);
}

.trust-number {
  font-family: var(--font-sans);
  font-size: clamp(40px, 4.5vw, 60px);
  font-weight: 800;
  color: var(--brass);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 8px;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 3px;
}

.trust-number .unit {
  font-size: 0.42em;
  font-weight: 600;
  color: var(--brass-light);
  letter-spacing: 0;
}

.trust-label {
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.02em;
}

/* ============================================================
   SECTION BASE
   ============================================================ */
.section {
  padding: var(--section-gap) 0;
}

.section-header {
  margin-bottom: 64px;
}

.section-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.section-eyebrow-line {
  width: 28px;
  height: 1px;
  background: var(--brass);
}

.section-eyebrow span {
  font-size: 11px;
  font-weight: 600;
  color: var(--brass);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-sans);
  font-size: clamp(28px, 3.2vw, 44px);
  font-weight: 800;
  color: var(--text-strong);
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.section-title-serif {
  font-family: var(--font-serif);
}

.section-sub {
  margin-top: 16px;
  font-size: 16px;
  color: var(--subtle);
  line-height: 1.7;
  max-width: 560px;
}

/* ============================================================
   BUSINESS AREA CARDS
   ============================================================ */
.business-section {
  background: var(--surface);
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--hairline);
}

.business-card {
  padding: 52px 44px;
  border-right: 1px solid var(--hairline);
  position: relative;
  transition: background 0.2s;
}

.business-card:last-child {
  border-right: none;
}

.business-card:hover {
  background: var(--bg);
}

/* Featured card */
.business-card.featured {
  position: relative;
}

.business-card.featured::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  height: 3px;
  background: var(--brass);
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--brass);
  color: var(--surface);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 10px;
  margin-bottom: 28px;
  border-radius: var(--radius);
}

.business-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 28px;
  color: var(--navy);
}

.business-card.featured .business-icon {
  color: var(--brass);
}

.business-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-strong);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.25;
}

.business-desc {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 32px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--subtle);
  letter-spacing: 0.01em;
  transition: color 0.2s, gap 0.2s;
}

.link-arrow:hover {
  color: var(--navy);
  gap: 10px;
}

.business-card.featured .link-arrow {
  color: var(--brass);
}

.business-card.featured .link-arrow:hover {
  color: var(--brass-dark);
}

/* ============================================================
   MAINTENANCE DEEP SECTION
   ============================================================ */
.maintenance-section {
  background: var(--bg);
}

.maintenance-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.maintenance-img {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius);
}

.maintenance-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(15%);
  transition: transform 0.6s ease;
}

.maintenance-img:hover img {
  transform: scale(1.03);
}

.maintenance-img-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: var(--navy);
  color: var(--surface);
  padding: 10px 18px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-left: 3px solid var(--brass);
}

.guarantee-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 40px;
}

.guarantee-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding: 24px 0;
  border-bottom: 1px solid var(--hairline);
  align-items: start;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.5s, transform 0.5s;
}

.guarantee-item.visible {
  opacity: 1;
  transform: translateX(0);
}

.guarantee-item:first-child {
  border-top: 1px solid var(--hairline);
}

.guarantee-icon {
  width: 40px;
  height: 40px;
  background: var(--navy);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brass);
  flex-shrink: 0;
}

.guarantee-icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
}

.guarantee-label {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-strong);
  letter-spacing: -0.01em;
  margin-bottom: 4px;
  line-height: 1.3;
}

.guarantee-desc {
  font-size: 13px;
  color: var(--subtle);
  line-height: 1.6;
}

/* ============================================================
   PROJECT GALLERY
   ============================================================ */
.projects-section {
  background: var(--surface);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.project-card {
  background: var(--surface);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.project-card-img {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.project-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(20%);
  transition: transform 0.5s ease, filter 0.5s;
}

.project-card:hover .project-card-img img {
  transform: scale(1.05);
  filter: grayscale(0%);
}

.project-card-info {
  padding: 20px 24px 24px;
  border-top: 1px solid var(--hairline);
}

.project-type {
  font-size: 10px;
  font-weight: 700;
  color: var(--brass);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.project-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-strong);
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.project-meta {
  font-size: 12px;
  color: var(--subtle);
}

.projects-footer {
  display: flex;
  justify-content: center;
  margin-top: 48px;
}

/* ============================================================
   TIMELINE (ABOUT — HORIZONTAL MINI)
   ============================================================ */
.timeline-section {
  background: var(--navy);
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}

.timeline-section::before {
  content: '"50 YEARS"';
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%) rotate(90deg);
  font-size: 120px;
  font-weight: 900;
  color: rgba(255,255,255,0.03);
  white-space: nowrap;
  letter-spacing: -0.04em;
  pointer-events: none;
}

.timeline-header {
  margin-bottom: 64px;
}

.timeline-header .section-title {
  color: var(--surface);
}

.timeline-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.timeline-track::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(184,144,96,0.5), transparent);
}

.timeline-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 24px;
  position: relative;
}

.timeline-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--brass);
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.timeline-dot::after {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--brass);
}

.timeline-year {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--brass);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.timeline-text {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}

/* ============================================================
   CERTIFICATIONS
   ============================================================ */
.cert-section {
  background: var(--bg);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.cert-card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  padding: 28px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.cert-card:hover {
  border-color: var(--brass);
  box-shadow: 0 0 0 1px var(--brass);
}

.cert-badge {
  width: 44px;
  height: 44px;
  background: var(--navy);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brass);
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.cert-badge svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
}

.cert-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-strong);
  letter-spacing: -0.01em;
  margin-bottom: 3px;
  line-height: 1.3;
}

.cert-issuer {
  font-size: 11px;
  color: var(--subtle);
}

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  background: var(--navy);
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,0.02) 60px,
      rgba(255,255,255,0.02) 61px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,0.02) 60px,
      rgba(255,255,255,0.02) 61px
    );
}

.cta-inner {
  position: relative;
  text-align: center;
}

.cta-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--brass);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.cta-headline {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 900;
  color: var(--surface);
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.cta-sub {
  font-size: 17px;
  color: rgba(255,255,255,0.65);
  margin-bottom: 48px;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-lg {
  font-size: 15px;
  padding: 14px 32px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: #050F1F;
  padding: 72px 0 0;
  color: rgba(255,255,255,0.55);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-col-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--brass);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-logo-ko {
  font-size: 18px;
  font-weight: 800;
  color: var(--surface);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.footer-logo-en {
  font-size: 9px;
  font-weight: 500;
  color: var(--brass);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-tagline {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  line-height: 1.7;
  max-width: 240px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  transition: color 0.2s;
  line-height: 1.4;
}

.footer-links a:hover {
  color: rgba(255,255,255,0.85);
}

.footer-contact-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-bottom: 16px;
}

.footer-contact-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--brass);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-contact-value {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  font-weight: 500;
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-legal {
  font-size: 11px;
  color: rgba(255,255,255,0.3);
  line-height: 1.7;
}

.footer-copy {
  font-size: 11px;
  color: rgba(255,255,255,0.25);
}

/* ============================================================
   ABOUT PAGE SPECIFIC
   ============================================================ */
.page-hero {
  position: relative;
  height: 60vh;
  min-height: 360px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?w=1920&q=80');
  background-size: cover;
  background-position: center 30%;
  filter: grayscale(40%) brightness(0.6);
}

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,30,63,0.85) 0%, rgba(10,30,63,0.4) 60%, transparent 100%);
}

.page-hero-content {
  position: relative;
  z-index: 2;
  padding-bottom: 56px;
}

.page-breadcrumb {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.page-breadcrumb a {
  color: rgba(255,255,255,0.5);
}

.page-breadcrumb span {
  margin: 0 8px;
}

.page-title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 900;
  color: var(--surface);
  letter-spacing: -0.025em;
  line-height: 1.1;
}

/* Greeting */
.greeting-section {
  background: var(--surface);
}

.greeting-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 80px;
  align-items: start;
}

.ceo-photo {
  position: relative;
}

.ceo-photo-img {
  width: 100%;
  aspect-ratio: 3/4;
  background: var(--bg);
  border: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--subtle);
}

.ceo-photo-img svg {
  width: 48px;
  height: 48px;
  stroke: currentColor;
  fill: none;
  opacity: 0.4;
}

.ceo-photo-img span {
  font-size: 12px;
  opacity: 0.5;
}

.ceo-caption {
  margin-top: 16px;
  border-top: 2px solid var(--brass);
  padding-top: 12px;
}

.ceo-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-strong);
  letter-spacing: -0.01em;
}

.ceo-title {
  font-size: 12px;
  color: var(--subtle);
  margin-top: 3px;
}

.greeting-text h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.5vw, 36px);
  font-weight: 700;
  color: var(--text-strong);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 32px;
}

.greeting-text p {
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.85;
  margin-bottom: 20px;
}

.greeting-text p:last-child {
  margin-bottom: 0;
}

.greeting-sig {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sig-line {
  width: 32px;
  height: 1px;
  background: var(--brass);
}

.sig-text {
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--subtle);
  font-style: italic;
}

/* Timeline Full */
.timeline-full-section {
  background: var(--bg);
}

.timeline-full {
  position: relative;
  padding-left: 48px;
}

.timeline-full::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(to bottom, var(--brass), rgba(184,144,96,0.2));
}

.timeline-full-item {
  position: relative;
  padding-bottom: 48px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s, transform 0.5s;
}

.timeline-full-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.timeline-full-item:last-child {
  padding-bottom: 0;
}

.timeline-full-dot {
  position: absolute;
  left: -48px;
  top: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--brass);
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline-full-dot::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brass);
}

.timeline-full-year {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  color: var(--brass);
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.timeline-full-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-strong);
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.timeline-full-desc {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
}

/* Vision cards */
.vision-section {
  background: var(--surface);
}

.vision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.vision-card {
  background: var(--surface);
  padding: 52px 44px;
  position: relative;
  overflow: hidden;
}

.vision-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--navy);
  transition: background 0.3s;
}

.vision-card:hover::before {
  background: var(--brass);
}

.vision-number {
  font-family: var(--font-serif);
  font-size: 56px;
  font-weight: 900;
  color: rgba(10,30,63,0.06);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}

.vision-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-strong);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
}

.vision-desc {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.75;
}

/* Map placeholder */
.map-section {
  background: var(--bg);
}

.map-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 0;
  border: 1px solid var(--hairline);
}

.map-placeholder {
  background: #D8D5CC;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--subtle);
  position: relative;
}

.map-placeholder svg {
  width: 40px;
  height: 40px;
  stroke: currentColor;
  fill: none;
  opacity: 0.5;
}

.map-placeholder span {
  font-size: 12px;
  opacity: 0.5;
}

.map-info {
  background: var(--surface);
  padding: 44px 40px;
  border-left: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.map-info-item {}

.map-info-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--brass);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.map-info-value {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.6;
  font-weight: 500;
}

/* ============================================================
   SCROLL FADE-IN ANIMATION
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   UTILITY
   ============================================================ */
.text-center { text-align: center; }
.text-center .section-sub { margin-left: auto; margin-right: auto; }
.text-center .section-eyebrow { justify-content: center; }

.divider {
  width: 48px;
  height: 2px;
  background: var(--brass);
  margin: 24px auto;
}

/* ============================================================
   RESPONSIVE — 768px
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --section-gap: 72px;
  }

  body {
    overflow-x: hidden;
  }

  .container {
    padding: 0 var(--pad-mob);
  }

  /* Utility bar — 모바일에서 숨김 (전화번호는 모바일 메뉴 CTA에 있음) */
  .utility-bar {
    display: none;
  }

  /* Header */
  .site-nav,
  .header-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .site-header .container {
    justify-content: space-between;
  }

  /* 모바일 메뉴: 유틸리티 바 제거 후 헤더 높이(72px)에 맞춰 시작 */
  .mobile-nav {
    top: 72px;
    -webkit-overflow-scrolling: touch;
  }

  /* Hero */
  .hero {
    min-height: calc(100vh - 72px);
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero-sub {
    font-size: 15px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  /* Trust */
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: rgba(255,255,255,0.08);
  }

  .trust-item + .trust-item::before {
    display: none;
  }

  /* Business */
  .business-grid {
    grid-template-columns: 1fr;
    border: none;
    gap: 1px;
    background: var(--hairline);
  }

  .business-card {
    border-right: none;
    border: 1px solid var(--hairline);
    padding: 36px 28px;
  }

  .business-card.featured::before {
    left: 0;
    right: 0;
  }

  /* Maintenance */
  .maintenance-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  /* Projects */
  .projects-grid {
    grid-template-columns: 1fr;
  }

  /* Timeline mini */
  .timeline-track {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .timeline-track::before {
    display: none;
  }

  /* Cert */
  .cert-grid {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  /* About */
  .greeting-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .ceo-photo-img {
    aspect-ratio: 16/9;
  }

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

  .map-layout {
    grid-template-columns: 1fr;
  }

  .map-info {
    border-left: none;
    border-top: 1px solid var(--hairline);
  }

  /* Page hero */
  .page-hero {
    height: 48vh;
  }

  .page-title {
    font-size: 36px;
  }

  /* CTA banner */
  .cta-actions {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .trust-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .timeline-track {
    grid-template-columns: 1fr;
  }
}