/* ==========================================================================
   개성환경설비 (Fresh Repairs & Equipment) - Modern UI/UX Stylesheet
   ========================================================================== */

@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=Outfit:wght@400;600;700;800&display=swap");

:root {
  /* Color Palette */
  --primary: #0284c7;
  --primary-hover: #0369a1;
  --primary-light: #e0f2fe;
  --primary-dark: #075985;
  --accent: #f97316;
  --accent-hover: #ea580c;
  --dark: #0f172a;
  --slate-800: #1e293b;
  --slate-600: #475569;
  --slate-100: #f1f5f9;
  --white: #ffffff;
  --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --blue-gradient: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  --accent-gradient: linear-gradient(135deg, #f97316 0%, #fb923c 100%);

  /* Shadows & Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.3);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 6px 16px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);
  --shadow-primary: 0 8px 24px rgba(2, 132, 199, 0.35);

  /* Border Radius & Spacing */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family:
    "Pretendard",
    -apple-system,
    BlinkMacSystemFont,
    system-ui,
    Roboto,
    sans-serif;
  color: var(--slate-800);
  background-color: #f8fafc;
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  position: relative;
  padding-bottom: 70px; /* Space for mobile floating CTA */
}

@media (min-width: 768px) {
  body {
    padding-bottom: 0;
  }
}

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

ul {
  list-style: none;
}

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

/* Typography Helpers */
.highlight {
  color: var(--primary);
}

.text-accent {
  color: var(--accent);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: var(--primary-light);
  color: var(--primary-dark);
}

.badge-outline {
  background: rgba(2, 132, 199, 0.1);
  border: 1px solid rgba(2, 132, 199, 0.3);
  color: var(--primary);
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  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);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.98);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--dark);
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: var(--blue-gradient);
  color: var(--white);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-sm);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--slate-800);
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
  border-radius: 2px;
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-links a:hover::after {
  width: 100%;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background: var(--blue-gradient);
  color: var(--white);
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(2, 132, 199, 0.45);
}

.btn-accent {
  background: var(--accent-gradient);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(249, 115, 22, 0.35);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(249, 115, 22, 0.45);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--slate-100);
  color: var(--white);
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--dark);
  cursor: pointer;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 90vh;
  padding: 140px 24px 80px;
  background: var(--bg-gradient);
  color: var(--white);
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg-img {
  position: absolute;
  top: 0;
  right: 0;
  width: 55%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
  mask-image: linear-gradient(to right, transparent 0%, black 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 100%);
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.hero-description {
  font-size: 1.15rem;
  color: #94a3b8;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 8px;
}

.hero-features {
  display: flex;
  gap: 24px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: #cbd5e1;
}

.hero-feature-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(2, 132, 199, 0.2);
  color: #38bdf8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

.hero-card-preview {
  position: relative;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-image-wrapper img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.hero-floating-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  gap: 14px;
}

.floating-badge-icon {
  font-size: 1.8rem;
  color: #38bdf8;
}

.floating-badge-text h4 {
  font-size: 0.95rem;
  font-weight: 700;
}

.floating-badge-text p {
  font-size: 0.825rem;
  color: #94a3b8;
}

/* Sections Shared Layout */
.section {
  padding: 90px 24px;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--dark);
  margin: 12px 0 16px;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--slate-600);
}

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

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(226, 232, 240, 0.8);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(2, 132, 199, 0.3);
}

.service-image {
  height: 220px;
  overflow: hidden;
  position: relative;
}

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

.service-card:hover .service-image img {
  transform: scale(1.05);
}

.service-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  color: var(--white);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.775rem;
  font-weight: 700;
}

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

.service-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}

.service-list {
  margin: 16px 0 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex-grow: 1;
}

.service-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--slate-600);
}

.service-list li i {
  color: var(--primary);
  font-size: 0.9rem;
}

.service-footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--slate-100);
}

/* Why Choose Us Section */
.why-section {
  background: var(--slate-100);
  position: relative;
}

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

.why-card {
  background: var(--white);
  padding: 32px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  text-align: center;
  border: 1px solid transparent;
}

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

.why-icon {
  width: 64px;
  height: 64px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 20px;
}

.why-card h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 10px;
}

.why-card p {
  font-size: 0.9rem;
  color: var(--slate-600);
  line-height: 1.6;
}

/* Portfolio / Before & After Section */
.portfolio-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.portfolio-info h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
}

.portfolio-info p {
  color: var(--slate-600);
  margin-bottom: 24px;
  line-height: 1.7;
}

.before-after-slider {
  position: relative;
  width: 100%;
  height: 380px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  user-select: none;
  --position: 50%;
}

.img-after,
.img-before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.img-after img,
.img-before img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.img-after {
  z-index: 1;
}

.img-before {
  z-index: 2;
  clip-path: polygon(0 0, var(--position) 0, var(--position) 100%, 0 100%);
  -webkit-clip-path: polygon(
    0 0,
    var(--position) 0,
    var(--position) 100%,
    0 100%
  );
}

.slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--position);
  width: 4px;
  background: var(--white);
  z-index: 10;
  cursor: ew-resize;
  transform: translateX(-50%);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.4);
}

.slider-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  font-size: 1.1rem;
}

.slider-label {
  position: absolute;
  bottom: 16px;
  padding: 6px 14px;
  background: rgba(15, 23, 42, 0.75);
  color: var(--white);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
  z-index: 5;
}

.label-before {
  left: 16px;
}

.label-after {
  right: 16px;
}

/* Process Section */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-step {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--slate-100);
  position: relative;
  z-index: 2;
}

.step-number {
  font-family: "Outfit", sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1;
  margin-bottom: 16px;
}

.process-step h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 8px;
}

.process-step p {
  font-size: 0.9rem;
  color: var(--slate-600);
}

/* Contact / Request Section */
.contact-section {
  background: var(--bg-gradient);
  color: var(--white);
}

.contact-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-info h2 {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.3;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: rgba(2, 132, 199, 0.2);
  color: #38bdf8;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-text h4 {
  font-size: 0.9rem;
  color: #94a3b8;
  margin-bottom: 4px;
}

.contact-text p {
  font-size: 1.1rem;
  font-weight: 700;
}

/* Request Form */
.request-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: #cbd5e1;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--white);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.25);
}

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

/* Footer */
.footer {
  background: #090d16;
  color: #94a3b8;
  padding: 60px 24px 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  color: var(--white);
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-links h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 16px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  font-size: 0.85rem;
}

/* Floating Mobile Footer CTA */
.mobile-floating-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  padding: 12px 16px;
  display: flex;
  gap: 12px;
  z-index: 999;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-floating-cta .btn {
  flex: 1;
  padding: 12px 8px;
  font-size: 0.9rem;
}

@media (min-width: 768px) {
  .mobile-floating-cta {
    display: none;
  }
}

/* Modal Popup */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.modal.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--white);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  padding: 36px;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  text-align: center;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--slate-600);
  cursor: pointer;
}

.modal-icon {
  width: 64px;
  height: 64px;
  background: #dcfce7;
  color: #16a34a;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 20px;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-bg-img {
    width: 100%;
    opacity: 0.2;
  }
  .hero-actions,
  .hero-features {
    justify-content: center;
  }
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }
  .why-grid,
  .process-grid {
    grid-template-columns: 1fr 1fr;
  }
  .portfolio-container {
    grid-template-columns: 1fr;
  }
  .contact-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-cta {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .why-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-container {
    grid-template-columns: 1fr;
  }
}