/* ==========================================================================
   미르경량철골 (MIR LIGHT STEEL) - Premium Responsive Stylesheet
   Design Concept: Modern Industrial Slate & Deep Navy with Gold Accents
   ========================================================================== */

:root {
  /* Color Palette */
  --primary-navy: #0b192c;
  --primary-dark: #07101d;
  --primary-slate: #1e3e62;
  --primary-accent: #0066cc;
  --primary-gradient: linear-gradient(135deg, #0b192c 0%, #1e3e62 100%);
  
  --accent-gold: #f59e0b;
  --accent-orange: #ea580c;
  --accent-gold-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-light: #f8fafc;
  --text-white: #ffffff;

  --bg-body: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-alt: #f1f5f9;
  --bg-dark-section: #0b192c;
  --bg-dark-card: #132238;

  --border-light: #e2e8f0;
  --border-dark: #2a3d58;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 28px rgba(0,0,0,0.12), 0 6px 12px rgba(0,0,0,0.06);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.18), 0 10px 20px rgba(0,0,0,0.08);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --font-main: "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.65;
  word-break: keep-all;
  overflow-x: hidden;
  padding-bottom: 0;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

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

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Section Common */
.section {
  padding: 100px 0;
  position: relative;
}

.section-dark {
  background-color: var(--bg-dark-section);
  color: var(--text-light);
}

.section-dark h2, .section-dark h3 {
  color: #ffffff;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 102, 204, 0.1);
  color: var(--primary-accent);
  border: 1px solid rgba(0, 102, 204, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-dark .badge-pill {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-gold);
  border-color: rgba(245, 158, 11, 0.3);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

.section-dark .section-desc {
  color: #94a3b8;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  z-index: 1000;
  transition: var(--transition);
}

.site-header.scrolled {
  height: 70px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-img {
  height: 48px;
  width: auto;
  max-width: 85px;
  object-fit: contain;
  transition: transform 0.25s ease;
}

.brand-logo:hover .logo-img {
  transform: scale(1.04);
}

.logo-text h1 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary-navy);
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1.1;
}

.logo-text span {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.3px;
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 4px;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-accent);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-accent);
  transition: width 0.25s ease;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-header-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-gradient);
  color: #ffffff !important;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(11, 25, 44, 0.2);
  transition: var(--transition);
}

.btn-header-phone i {
  color: var(--accent-gold);
}

.btn-header-phone:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(11, 25, 44, 0.3);
}

.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  background: transparent;
  cursor: pointer;
  z-index: 1100;
}

.hamburger-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--primary-navy);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger-btn.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.active span:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  padding-bottom: 60px;
  background-color: var(--primary-navy);
  color: #ffffff;
  overflow: hidden;
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(to right, rgba(11, 25, 44, 0.95) 0%, rgba(11, 25, 44, 0.85) 60%, rgba(11, 25, 44, 0.7) 100%),
    url('../assets/images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  z-index: 1;
}

.hero-grid-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: 2;
}

.hero-container {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  max-width: 660px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: var(--radius-full);
  color: var(--accent-gold);
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 24px;
  box-shadow: 0 2px 10px rgba(245, 158, 11, 0.15);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.18;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-title .highlight {
  color: var(--accent-gold);
  background: linear-gradient(135deg, #fcd34d 0%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #cbd5e1;
  font-weight: 400;
  margin-bottom: 36px;
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  background: var(--accent-gold-gradient);
  color: #0b192c;
  font-weight: 800;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
  transition: var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(245, 158, 11, 0.45);
  background: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 28px;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  font-weight: 700;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.4);
}

.hero-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: #e2e8f0;
  font-weight: 500;
}

.hero-feature-item i {
  color: var(--accent-gold);
  font-size: 1.1rem;
}

/* Hero Right Card */
.hero-card {
  background: rgba(19, 34, 56, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-xl);
  position: relative;
}

.hero-card-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 20px;
  margin-bottom: 20px;
}

.hero-card-tag {
  display: inline-block;
  background: var(--primary-accent);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 8px;
}

.hero-card-title {
  font-size: 1.35rem;
  color: #ffffff;
  font-weight: 700;
}

.hero-card-phone {
  display: block;
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--accent-gold);
  margin-top: 6px;
  letter-spacing: -0.02em;
}

.hero-card-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.hero-card-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: #cbd5e1;
}

.hero-card-list li i {
  color: #38bdf8;
  margin-top: 4px;
}

.hero-card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.btn-card-action {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition);
}

.btn-card-call {
  background: #22c55e;
  color: #ffffff;
}

.btn-card-call:hover {
  background: #16a34a;
  transform: translateY(-2px);
}

.btn-card-sms {
  background: #3b82f6;
  color: #ffffff;
}

.btn-card-sms:hover {
  background: #2563eb;
  transform: translateY(-2px);
}

/* ==========================================================================
   Trust Stats Bar
   ========================================================================== */
.stats-bar {
  background: #ffffff;
  border-bottom: 1px solid var(--border-light);
  padding: 40px 0;
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: 20;
  margin-top: -30px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 16px;
  border-right: 1px solid var(--border-light);
}

.stat-item:last-child {
  border-right: none;
}

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(11, 25, 44, 0.06);
  color: var(--primary-slate);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.stat-info .stat-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary-navy);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.stat-info .stat-number span {
  color: var(--accent-orange);
}

.stat-info .stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-top: 4px;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
}

.about-image-wrap {
  position: relative;
}

.about-img-main {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-experience-badge {
  position: absolute;
  bottom: -24px;
  right: -24px;
  background: var(--primary-navy);
  color: #ffffff;
  padding: 24px 32px;
  border-radius: var(--radius-md);
  border: 3px solid #ffffff;
  box-shadow: var(--shadow-xl);
  text-align: center;
}

.about-experience-badge .years {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--accent-gold);
  line-height: 1;
}

.about-experience-badge .text {
  font-size: 0.85rem;
  font-weight: 600;
  color: #cbd5e1;
  margin-top: 4px;
}

.about-content h2 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.about-story {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.about-story strong {
  color: var(--primary-navy);
}

.principles-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-navy);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.principles-title i {
  color: var(--primary-accent);
}

.principles-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 32px;
}

.principle-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px 18px;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.principle-item:hover {
  transform: translateX(4px);
  border-color: var(--primary-accent);
  box-shadow: var(--shadow-md);
}

.principle-num {
  width: 28px;
  height: 28px;
  background: var(--primary-navy);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  flex-shrink: 0;
  margin-top: 2px;
}

.principle-text strong {
  display: block;
  font-size: 0.98rem;
  color: var(--primary-navy);
  margin-bottom: 2px;
}

.principle-text p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ==========================================================================
   Services Section (시공분야)
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(0, 102, 204, 0.3);
}

.service-img-wrap {
  height: 240px;
  position: relative;
  overflow: hidden;
}

.service-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.service-card:hover .service-img-wrap img {
  transform: scale(1.08);
}

.service-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(11, 25, 44, 0.85);
  color: #ffffff;
  backdrop-filter: blur(8px);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.service-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.service-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--primary-navy);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.service-title i {
  color: var(--primary-accent);
  font-size: 1.2rem;
}

.service-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.service-spec-list {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-spec-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.service-spec-item i {
  color: #16a34a;
  font-size: 0.8rem;
}

.service-places {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.place-badge {
  background: var(--bg-card-alt);
  color: var(--text-secondary);
  font-size: 0.78rem;
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: 600;
}

/* ==========================================================================
   Portfolio / Case Studies (시공사례)
   ========================================================================== */
.portfolio-filter-wrap {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 10px 22px;
  border-radius: var(--radius-full);
  background: #ffffff;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--primary-navy);
  color: #ffffff;
  border-color: var(--primary-navy);
  box-shadow: 0 4px 12px rgba(11, 25, 44, 0.2);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.portfolio-item {
  background: #ffffff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
  cursor: pointer;
  display: block;
}

.portfolio-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.portfolio-thumb-wrap {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.portfolio-thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-item:hover .portfolio-thumb-wrap img {
  transform: scale(1.06);
}

.portfolio-hover-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(11, 25, 44, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.portfolio-item:hover .portfolio-hover-overlay {
  opacity: 1;
}

.portfolio-hover-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-gold);
  color: #0b192c;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.portfolio-info {
  padding: 20px;
}

.portfolio-cat {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary-accent);
  text-transform: uppercase;
  margin-bottom: 6px;
  display: block;
}

.portfolio-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-navy);
  margin-bottom: 6px;
}

.portfolio-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Interactive Quote Calculator (간편 견적 문의)
   ========================================================================== */
.quote-section {
  background: linear-gradient(135deg, #0b192c 0%, #172a46 100%);
  color: #ffffff;
}

.quote-wrapper {
  background: #ffffff;
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  padding: 48px;
  box-shadow: var(--shadow-xl);
  max-width: 960px;
  margin: 0 auto;
}

.quote-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary-navy);
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-label span.req {
  color: #ef4444;
}

.form-control {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  background-color: #ffffff;
}

.form-control:focus {
  border-color: var(--primary-accent);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

/* Checkbox Pills for Construction Types */
.type-pills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.type-pill-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 10px;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  text-align: center;
  transition: var(--transition);
  background: var(--bg-card-alt);
  user-select: none;
}

.type-pill-label input {
  display: none;
}

.type-pill-label.checked {
  background: rgba(0, 102, 204, 0.08);
  border-color: var(--primary-accent);
  color: var(--primary-accent);
}

.quote-helper-notice {
  background: #f8fafc;
  border-left: 4px solid var(--accent-gold);
  padding: 16px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 24px 0 32px;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.quote-helper-notice ul {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.quote-helper-notice li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.quote-helper-notice li i {
  color: var(--accent-gold);
  font-size: 0.8rem;
}

.quote-submit-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.btn-submit-sms {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 24px;
  background: #2563eb;
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 800;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
  transition: var(--transition);
}

.btn-submit-sms:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
}

.btn-submit-call {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 24px;
  background: #16a34a;
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 800;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 15px rgba(22, 163, 74, 0.3);
  transition: var(--transition);
}

.btn-submit-call:hover {
  background: #15803d;
  transform: translateY(-2px);
}

/* ==========================================================================
   Coverage Area (전국시공지역)
   ========================================================================== */
.network-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.network-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 28px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.network-card:hover {
  border-color: var(--primary-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.network-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1.5px solid var(--bg-card-alt);
}

.network-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(0, 102, 204, 0.1);
  color: var(--primary-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.network-card-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary-navy);
}

.network-city-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.city-tag {
  background: var(--bg-card-alt);
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.city-tag.hot {
  background: rgba(245, 158, 11, 0.15);
  color: #b45309;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* ==========================================================================
   Location & Contact Section (오시는 길)
   ========================================================================== */
.location-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.location-info-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}

.location-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.location-item-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(11, 25, 44, 0.06);
  color: var(--primary-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.location-item-text h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary-navy);
  margin-bottom: 4px;
}

.location-item-text p {
  font-size: 0.98rem;
  color: var(--text-secondary);
}

.address-copy-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}

.btn-copy-address {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--bg-card-alt);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.btn-copy-address:hover {
  background: #e2e8f0;
  color: var(--primary-navy);
}

.map-buttons-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
}

.btn-map-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.92rem;
  transition: var(--transition);
  border: 1px solid var(--border-light);
}

.btn-map-naver {
  background: #03c75a;
  color: #ffffff;
  border-color: #03c75a;
}

.btn-map-naver:hover {
  background: #02b150;
}

.btn-map-kakao {
  background: #fee500;
  color: #191919;
  border-color: #fee500;
}

.btn-map-kakao:hover {
  background: #ebd300;
}

.location-visual-card {
  height: 420px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  position: relative;
  background: #e2e8f0;
}

.location-visual-card iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ==========================================================================
   Site Footer
   ========================================================================== */
.site-footer {
  background: #07101d;
  color: #94a3b8;
  padding: 70px 0 40px;
  font-size: 0.92rem;
  border-top: 1px solid #1e293b;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 50px;
}

.footer-brand-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.footer-logo-img {
  height: 42px;
  width: auto;
  max-width: 75px;
  object-fit: contain;
}

.footer-brand .footer-logo-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0;
}

.footer-brand p {
  color: #64748b;
  line-height: 1.6;
  margin-bottom: 20px;
}

.footer-contact-call {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--accent-gold);
}

.footer-links-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav-list a:hover {
  color: #ffffff;
  padding-left: 4px;
}

.footer-business-info {
  line-height: 1.8;
}

.footer-business-info strong {
  color: #cbd5e1;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid #1e293b;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #64748b;
}

/* ==========================================================================
   Mobile Floating Action Bar
   ========================================================================== */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: rgba(11, 25, 44, 0.96);
  backdrop-filter: blur(12px);
  z-index: 999;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
}

.mobile-bottom-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  height: 100%;
}

.mobile-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-action-btn:last-child {
  border-right: none;
}

.mobile-action-btn i {
  font-size: 1.15rem;
}

.mobile-action-btn.call {
  background: #16a34a;
  color: #ffffff;
}

.mobile-action-btn.sms {
  background: #2563eb;
  color: #ffffff;
}

.mobile-action-btn.quote {
  background: var(--accent-gold);
  color: #0b192c;
}

/* ==========================================================================
   Lightbox Modal
   ========================================================================== */
.lightbox-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(7, 16, 29, 0.94);
  backdrop-filter: blur(10px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.lightbox-modal.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 900px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
  margin-top: 16px;
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 600;
  text-align: center;
}

.lightbox-close-btn {
  position: absolute;
  top: -48px;
  right: 0;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  transition: var(--transition);
}

.lightbox-close-btn:hover {
  background: rgba(255, 255, 255, 0.4);
}

/* Toast Notification */
.toast-notice {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #0b192c;
  color: #ffffff;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-xl);
  font-size: 0.95rem;
  font-weight: 600;
  z-index: 3000;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.toast-notice.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-card {
    max-width: 560px;
    margin: 0 auto;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .services-grid, .portfolio-grid, .network-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 30px;
  }
  
  .stat-item:nth-child(2) {
    border-right: none;
  }
  
  .location-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  body {
    padding-bottom: 64px; /* Space for mobile floating bar */
  }

  .section {
    padding: 70px 0;
  }
  
  .section-title {
    font-size: 2rem;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: #0b192c;
    flex-direction: column;
    align-items: flex-start;
    padding: 90px 24px 30px;
    gap: 20px;
    transition: right 0.3s ease;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-link {
    color: #e2e8f0;
    font-size: 1.1rem;
  }

  .hamburger-btn {
    display: flex;
  }

  .header-cta .btn-header-phone {
    display: none;
  }

  .hero-title {
    font-size: 2.3rem;
  }
  
  .hero-features {
    grid-template-columns: 1fr;
  }

  .hero-cta-group {
    flex-direction: column;
  }

  .btn-primary, .btn-secondary {
    width: 100%;
  }

  .services-grid, .portfolio-grid, .network-grid {
    grid-template-columns: 1fr;
  }

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

  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 20px;
  }
  
  .stat-item:last-child {
    border-bottom: none;
  }

  .quote-wrapper {
    padding: 28px 20px;
  }

  .quote-form-grid {
    grid-template-columns: 1fr;
  }

  .form-group.full-width {
    grid-column: span 1;
  }

  .type-pills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .quote-submit-group {
    grid-template-columns: 1fr;
  }

  .mobile-bottom-bar {
    display: block;
  }

  .about-experience-badge {
    position: static;
    margin-top: 16px;
    display: inline-block;
  }
}