/* CLEANEXPRESS 프리미엄 디자인 시스템 */
:root {
  --primary: #0056b3;
  --secondary: #00a8ff;
  --accent: #27ae60;
  --dark: #1a1c1e;
  --light: #f8f9fa;
  --white: #ffffff;
  --border: #e1e4e8;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  /* 모바일 폰트 최적화 - clamp 사용 */
  --fs-hero: clamp(1.8rem, 8vw, 3.5rem);
  --fs-h2: clamp(1.5rem, 6vw, 2.5rem);
  --fs-body: clamp(0.95rem, 4vw, 1.1rem);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

html {
  scroll-behavior: smooth;
  font-family: 'Noto Sans KR', sans-serif;
}

body {
  background-color: var(--white);
  color: var(--dark);
  line-height: 1.6;
  /* 모바일에서 텍스트가 튀어나가거나 잘리지 않도록 핵심 설정 */
  word-break: keep-all;
  overflow-wrap: break-word;
  padding-bottom: 60px; /* 모바일 하단 바 공간 */
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  z-index: 1000;
  border-bottom: 1px solid var(--border);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--dark);
}

.logo span { color: var(--primary); }

.nav-links a {
  text-decoration: none;
  color: var(--dark);
  margin: 0 15px;
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-call {
  background: var(--primary);
  color: var(--white);
  text-decoration: none;
  padding: 8px 18px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.9rem;
}

/* Hero Section */
.hero-section {
  padding: 160px 0 100px;
  background: url('KakaoTalk_20260504_164303919_08.jpg') center/cover no-repeat !important;
  position: relative;
  color: var(--white);
  text-align: left;
}

.hero-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(90deg, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.4) 100%);
}

.hero-container { position: relative; z-index: 2; }

.hero-text-content { max-width: 650px; }

.top-label {
  display: inline-block;
  color: var(--secondary);
  font-weight: 700;
  margin-bottom: 15px;
  letter-spacing: 1px;
}

.hero-section h1 {
  font-size: var(--fs-hero);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 25px;
  letter-spacing: -1px;
}

.hero-section p {
  font-size: var(--fs-body);
  margin-bottom: 40px;
  opacity: 0.9;
}

.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  text-decoration: none;
  padding: 18px 40px;
  border-radius: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  box-shadow: 0 10px 20px rgba(0, 86, 179, 0.3);
  transition: var(--transition);
}

.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 15px 30px rgba(0, 86, 179, 0.4); }

/* Stats Section */
.stats-section { padding: 60px 0; background: var(--light); }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.stat-item {
  text-align: center;
  padding: 20px;
  background: var(--white);
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.03);
}

.stat-icon { font-size: 2rem; margin-bottom: 10px; }

.stat-item h3 { font-size: 1.1rem; margin-bottom: 5px; }

.stat-item p { font-size: 0.9rem; color: #666; }

/* Compare Section */
.compare-section { padding: 100px 0; }

.section-header { text-align: center; margin-bottom: 60px; }

.section-header h2 { font-size: var(--fs-h2); font-weight: 800; margin-bottom: 15px; }

.section-header p { color: #666; font-size: 1.1rem; }

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.compare-card {
  background: #f1f3f5;
  border-radius: 20px;
  padding: 20px;
  text-align: center;
}

.card-label {
  display: inline-block;
  padding: 5px 15px;
  border-radius: 5px;
  font-weight: 700;
  margin-bottom: 15px;
  color: white;
}

.before .card-label { background: #e74c3c; }

.after .card-label { background: var(--accent); }

/* 이미지 박스 스타일 */
.img-box {
  width: 100%;
  height: 250px;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
  background: #eee;
}

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

.img-box:hover img {
  transform: scale(1.1);
}

/* Process Section */
.process-section { padding: 100px 0; background: var(--dark); color: var(--white); }

.section-header.white p { color: #ccc; }

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 50px;
}

.process-step {
  display: flex;
  gap: 20px;
  padding: 25px;
  background: rgba(255,255,255,0.05);
  border-radius: 15px;
}

.step-num {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--secondary);
  opacity: 0.5;
}

.step-desc h4 { font-size: 1.2rem; margin-bottom: 8px; }

.step-desc p { font-size: 0.95rem; color: #bbb; }

/* CTA Section */
.cta-section { padding: 100px 0; text-align: center; background: #f0f7ff; }

.cta-info { margin: 40px 0; }

.phone-box {
  display: inline-block;
  background: var(--white);
  padding: 30px 60px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  margin-bottom: 20px;
}

.phone-box span { display: block; font-size: 1rem; color: #666; margin-bottom: 10px; }

.phone-box a {
  font-size: 3rem;
  font-weight: 900;
  color: var(--primary);
  text-decoration: none;
}

.working-time { color: #888; font-size: 0.9rem; }

.btn-cta {
  display: inline-block;
  background: var(--dark);
  color: var(--white);
  text-decoration: none;
  padding: 20px 60px;
  border-radius: 50px;
  font-size: 1.3rem;
  font-weight: 800;
  transition: var(--transition);
}

.btn-cta:hover { background: var(--primary); transform: scale(1.05); }

/* Footer */
.footer { padding: 60px 0; background: #fafafa; border-top: 1px solid var(--border); }

.f-top { margin-bottom: 30px; }

.f-bottom { font-size: 0.85rem; color: #888; }

.copy { margin-top: 10px; }

/* Mobile Bottom Bar */
.mobile-sticky-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 65px;
  background: var(--accent);
  z-index: 1001;
  display: none;
}

.mobile-sticky-bar a {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--white);
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 800;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .phone-box a { font-size: 2.2rem; }
}

@media (max-width: 600px) {
  body { padding-bottom: 65px; }
  .mobile-sticky-bar { display: block; }
  .hero-section { padding: 120px 0 60px; text-align: center; }
  .hero-text-content { margin: 0 auto; }
  .btn-primary { width: 100%; padding: 16px 20px; font-size: 1.1rem; }
  .phone-box { width: 100%; padding: 20px; }
  .btn-cta { width: 100%; padding: 16px 20px; font-size: 1.1rem; }
  .process-steps { grid-template-columns: 1fr; }
}