/* ==========================================================================
   Creva Group - Modern One-Page Style
   Identity Color: #1a9ca0 (Teal Blue)
   ========================================================================== */

:root {
  --primary: #1a9ca0;
  --primary-dark: #13767a;
  --primary-light: #e6f6f6;
  --primary-glow: rgba(26, 156, 160, 0.25);
  
  --dark: #0f172a;
  --dark-surface: #1e293b;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --border: #e2e8f0;
  --border-focus: #1a9ca0;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Pretendard Variable", Pretendard, "Noto Sans KR", sans-serif;
  color: var(--text-main);
  background-color: var(--bg-page);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
  overflow-x: hidden;
}

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

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

button, input, select {
  font: inherit;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography Helpers */
.section {
  padding: 100px 0;
}

.section-alt {
  background-color: #ffffff;
}

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

.section-badge {
  display: inline-block;
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  background-color: var(--primary-light);
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary-light);
  transform: translateY(-2px);
}

.btn-white {
  background-color: #ffffff;
  color: var(--dark);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  background-color: #f1f5f9;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

/* Header & Nav */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  z-index: 1000;
  transition: var(--transition);
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

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

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

.brand-logo img {
  height: 42px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a:not(.btn) {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
}

.nav-links a:not(.btn):hover,
.nav-links a:not(.btn).active {
  color: var(--primary);
}

.nav-links a:not(.btn)::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition);
  border-radius: 2px;
}

.nav-links a:not(.btn):hover::after,
.nav-links a:not(.btn).active::after {
  width: 100%;
}

.nav-cta {
  margin-left: 12px;
}

.nav-links .btn,
.nav-cta .btn {
  color: #ffffff !important;
  background-color: var(--primary);
  padding: 10px 24px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 14px var(--primary-glow);
  white-space: nowrap;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nav-links .btn:hover,
.nav-cta .btn:hover {
  color: #ffffff !important;
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--primary-glow);
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--dark);
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 180px 0 120px;
  background: radial-gradient(circle at 80% 20%, rgba(26, 156, 160, 0.12) 0%, transparent 50%),
              radial-gradient(circle at 10% 80%, rgba(26, 156, 160, 0.08) 0%, transparent 40%),
              #ffffff;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 60px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background-color: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 900;
  color: var(--dark);
  line-height: 1.18;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

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

.hero-desc {
  font-size: 1.2rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}

.stat-item h3 {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* Hero Visual Showcase & Dynamic Slider */
.hero-visual {
  position: relative;
}

.hero-slider-wrap {
  position: relative;
  width: 100%;
}

.hero-slider-track {
  display: grid;
  grid-template-areas: "slide";
  position: relative;
  width: 100%;
}

.hero-slide-item {
  grid-area: slide;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.98);
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.5s;
  pointer-events: none;
  z-index: 1;
}

.hero-slide-item.active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
  pointer-events: auto;
  z-index: 2;
}

.hero-card-stack {
  position: relative;
  background: linear-gradient(135deg, rgba(26, 156, 160, 0.15) 0%, rgba(30, 41, 59, 0.05) 100%);
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xl);
}

.hero-img-link {
  display: block;
  cursor: pointer;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.hero-img-link .hero-preview-img {
  transition: transform 0.4s ease;
}

.hero-img-link:hover .hero-preview-img {
  transform: scale(1.02);
}

.hero-preview-img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background-color: #e2e8f0;
  display: block;
}

.hero-floating-card {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 14px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 82%;
  z-index: 10;
}

.floating-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.floating-meta {
  flex: 1;
  min-width: 0;
}

.floating-title {
  display: block;
  font-size: 0.95rem;
  color: var(--dark);
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.floating-desc {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

.floating-link-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.floating-link-btn:hover {
  background-color: var(--primary);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px var(--primary-glow);
}

/* Hero Slider Navigation Pill (Top-Right) */
.hero-slider-nav {
  position: absolute;
  top: 36px;
  right: 36px;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  padding: 5px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 20;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
  user-select: none;
}

.hero-nav-arrow {
  background: transparent;
  border: none;
  color: #ffffff;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  padding: 0;
}

.hero-nav-arrow:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

.hero-nav-arrow:active {
  transform: scale(0.92);
}

.hero-nav-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-nav-dot {
  width: 7px;
  height: 7px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.45);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-nav-dot:hover {
  background: rgba(255, 255, 255, 0.85);
}

.hero-nav-dot.active {
  width: 20px;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary-glow);
}

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

.about-text h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 20px;
  line-height: 1.35;
}

.about-text p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 24px;
}

.philosophy-box {
  background-color: var(--primary-light);
  border-left: 4px solid var(--primary);
  padding: 20px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 32px;
}

.philosophy-box h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 8px;
}

.philosophy-box p {
  margin-bottom: 0;
  color: var(--text-main);
  font-size: 0.98rem;
}

.info-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.info-card {
  background-color: #ffffff;
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.info-card .label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.info-card .val {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  background-color: var(--bg-card);
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.service-icon {
  width: 60px;
  height: 60px;
  background-color: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.service-icon svg {
  width: 30px;
  height: 30px;
}

.service-card h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
}

.service-tags li {
  font-size: 0.78rem;
  font-weight: 600;
  background-color: var(--bg-page);
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

/* Portfolio Section */
.portfolio-controls {
  margin-bottom: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.category-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  list-style: none;
}

.tab-btn {
  padding: 10px 20px;
  font-size: 0.92rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  background-color: #ffffff;
  color: var(--text-muted);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.tab-btn.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 4px 12px var(--primary-glow);
}

.tab-count {
  font-size: 0.78rem;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background-color: rgba(0, 0, 0, 0.08);
}

.tab-btn.active .tab-count {
  background-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

.search-and-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}

.search-box {
  position: relative;
  flex-grow: 1;
}

.search-box input {
  width: 100%;
  padding: 14px 20px 14px 46px;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background-color: #ffffff;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  outline: none;
}

.search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  pointer-events: none;
}

.result-count {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-muted);
}

/* Portfolio Section Compact Tuning (For Single Screen Fit) */
#portfolio.section {
  padding: 44px 0 24px;
}

#portfolio .section-header {
  margin: 0 auto 20px;
}

#portfolio .section-title {
  font-size: 2rem;
  margin-bottom: 8px;
}

#portfolio .section-subtitle {
  font-size: 0.95rem;
  margin-bottom: 0;
  line-height: 1.45;
}

#portfolio .section-badge {
  margin-bottom: 8px;
  padding: 4px 12px;
}

#portfolio .portfolio-controls {
  margin-bottom: 16px;
  gap: 12px;
}

#portfolio .tab-btn {
  padding: 8px 16px;
  font-size: 0.88rem;
}

#portfolio .search-and-meta {
  gap: 12px;
}

#portfolio .search-box input {
  padding: 10px 18px 10px 42px;
  font-size: 0.9rem;
}

/* Portfolio Slider Layout */
.portfolio-slider-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
}

.portfolio-slider-viewport {
  flex: 1;
  overflow: hidden;
  position: relative;
  width: 100%;
  padding: 4px 4px 6px 4px;
  touch-action: pan-y pinch-zoom;
  transition: height 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.portfolio-slider-track {
  display: flex;
  align-items: flex-start;
  transition: transform 0.45s cubic-bezier(0.25, 1, 0.5, 1);
  width: 100%;
  will-change: transform;
}

.portfolio-slide {
  flex: 0 0 100%;
  width: 100%;
  min-width: 100%;
  box-sizing: border-box;
}

/* PC: 3 columns x 2 rows = 6 items per slide */
.portfolio-slide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* Side Arrow Buttons (PC & Tablet) */
.slider-arrow {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background-color: #ffffff;
  border: 1px solid var(--border);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  z-index: 5;
}

.slider-arrow:hover:not(:disabled) {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 6px 18px var(--primary-glow);
  transform: scale(1.08);
}

.slider-arrow:active:not(:disabled) {
  transform: scale(0.96);
}

.slider-arrow:disabled {
  opacity: 0.25;
  cursor: not-allowed;
  pointer-events: none;
  box-shadow: none;
}

/* Card Styling */
.portfolio-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  position: relative;
}

.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.card-media {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background-color: #f1f5f9;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.4s ease;
}

.portfolio-card:hover .card-media img {
  transform: scale(1.05);
}

.portfolio-card.anim-fade-in {
  animation: cardFadeIn 0.35s ease forwards;
}

@keyframes cardFadeIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Pagination & Dots Controls */
.portfolio-pagination-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
}

.mobile-pagination-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-arrow-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #ffffff;
  border: 1px solid var(--border);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.mobile-arrow-btn:active:not(:disabled) {
  background-color: var(--primary);
  color: #ffffff;
}

.mobile-arrow-btn:disabled {
  opacity: 0.25;
  cursor: not-allowed;
  pointer-events: none;
}

/* On Desktop/PC, mobile arrows are hidden and page info stays visible */
@media (min-width: 768px) {
  .mobile-arrow-btn {
    display: none;
  }
}

.portfolio-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  max-width: 540px;
}

.portfolio-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: #cbd5e1;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.portfolio-dot:hover {
  background-color: var(--primary);
  transform: scale(1.2);
}

.portfolio-dot.active {
  background-color: var(--primary);
  width: 26px;
  border-radius: 10px;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.portfolio-page-info {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  background-color: #f1f5f9;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.portfolio-page-info .curr-page {
  color: var(--primary-dark);
  font-size: 1rem;
}

/* Empty State */
.portfolio-empty-state {
  width: 100%;
  padding: 60px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 1.05rem;
  font-weight: 600;
  background-color: #f8fafc;
  border-radius: var(--radius-md);
  border: 1px dashed var(--border);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.7) 0%, transparent 60%);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 20px;
}

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

.card-overlay span {
  color: #ffffff;
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary-dark);
  box-shadow: var(--shadow-sm);
  z-index: 2;
}

.card-closed-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background-color: #fee2e2;
  color: #ef4444;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  z-index: 2;
}

.card-body {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 4px;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.6em;
}

.card-subtitle {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-meta-list {
  list-style: none;
  font-size: 0.8rem;
  margin-bottom: 8px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.card-meta-list li {
  display: flex;
  color: var(--text-muted);
}

.card-meta-list .meta-label {
  width: 58px;
  font-weight: 700;
  color: var(--text-light);
  flex-shrink: 0;
}

.card-meta-list .meta-val {
  color: var(--text-main);
  font-weight: 500;
  word-break: break-word;
}

.card-footer {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-tech {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.card-link-btn {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.card-link-btn:hover {
  text-decoration: underline;
}

.closed-notice {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 500;
  color: #ef4444;
  margin-left: 6px;
  vertical-align: baseline;
}

.card-link-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
}

.closed-url-hint {
  font-size: 0.72rem;
  color: #ef4444;
  font-weight: 500;
  line-height: 1.3;
  text-align: right;
}

/* Modal Dialog Styles (modern-web-guidance compliant) */
dialog#portfolioModal {
  border: none;
  border-radius: var(--radius-lg);
  padding: 0;
  max-width: 960px;
  width: 92vw;
  max-height: 90vh;
  margin: auto;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  background-color: #ffffff;
}

dialog#portfolioModal::backdrop {
  background-color: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.modal-content {
  display: flex;
  flex-direction: column;
  max-height: 90vh;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
  background-color: #ffffff;
}

.modal-title-group h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--dark);
}

.modal-close-btn {
  background: none;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: var(--transition);
}

.modal-close-btn:hover {
  background-color: var(--bg-page);
  color: var(--dark);
}

.modal-body {
  padding: 28px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.modal-slide-view {
  background-color: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  justify-content: center;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.03);
}

.modal-slide-view img {
  width: 100%;
  max-width: 860px;
  height: auto; /* 가로 고정, 세로는 이미지 비율에 맞춰 늘어나며 상하 스크롤 */
  display: block;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}

.modal-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  background-color: var(--bg-page);
  padding: 20px;
  border-radius: var(--radius-md);
}

.modal-info-item .label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-light);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.modal-info-item .val {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--dark);
}

.modal-features-box h4 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}

.modal-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.modal-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.5;
}

.modal-features-list li svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.modal-footer {
  padding: 16px 28px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background-color: #ffffff;
}

/* Contact Us Section (Spam-Free Direct Channels) */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-channels {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.channel-card {
  background-color: #ffffff;
  padding: 30px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.channel-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.channel-card h4 {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 6px;
}

.channel-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.channel-link {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--primary);
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.channel-link:hover {
  color: var(--primary-dark);
}

.contact-map-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.map-header {
  padding: 24px;
  border-bottom: 1px solid var(--border);
}

.map-header h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 6px;
}

.map-header p {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.map-embed-frame {
  height: 280px;
  width: 100%;
  background-color: #f1f5f9;
  position: relative;
}

.map-footer {
  padding: 16px 24px;
  background-color: var(--bg-page);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Footer */
.site-footer {
  background-color: var(--dark);
  color: var(--text-light);
  padding: 60px 0 30px;
  border-top: 1px solid var(--dark-surface);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--dark-surface);
  margin-bottom: 30px;
  flex-wrap: wrap;
  gap: 30px;
}

.footer-brand img {
  height: 36px;
  filter: brightness(0) invert(1);
  margin-bottom: 14px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.footer-info {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-admin-link {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: var(--transition);
}

.footer-admin-link:hover {
  color: var(--primary);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero-title {
    font-size: 2.8rem;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 70px 0;
  }
  
  .hero-section {
    padding: 130px 0 80px;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .services-grid,
  .contact-channels,
  .info-cards {
    grid-template-columns: 1fr;
  }
  
  /* Mobile Portfolio Slider (2x2 Grid) */
  .portfolio-slider-wrapper {
    gap: 0;
  }

  .portfolio-slider-viewport {
    padding: 6px 2px 10px 2px;
  }

  /* Hide desktop side arrows on mobile */
  .slider-arrow {
    display: none;
  }

  /* 2 columns x 2 rows = 4 items */
  .portfolio-slide-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  /* Compact card styling for mobile 2x2 (eliminates vertical stretching) */
  .portfolio-card {
    border-radius: var(--radius-md);
  }

  .card-media {
    aspect-ratio: 16/10;
  }

  .card-badge {
    top: 8px;
    left: 8px;
    font-size: 0.65rem;
    padding: 2px 7px;
  }

  .card-closed-badge {
    top: auto;
    bottom: 8px;
    right: 8px;
    font-size: 0.58rem;
    padding: 2px 6px;
  }

  .card-body {
    padding: 12px 10px;
  }

  .card-title {
    font-size: 0.92rem;
    margin-bottom: 4px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 2.6em;
  }

  .card-subtitle {
    font-size: 0.75rem;
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .card-meta-list {
    font-size: 0.72rem;
    gap: 3px;
    margin-bottom: 8px;
  }

  .card-meta-list .meta-label {
    width: 48px;
  }

  .card-footer {
    padding-top: 8px;
    flex-wrap: wrap;
    gap: 6px;
  }

  .card-tech {
    font-size: 0.68rem;
    padding: 2px 6px;
  }

  .card-link-btn {
    font-size: 0.75rem;
  }

  .closed-url-hint {
    font-size: 0.62rem;
    line-height: 1.25;
    text-align: left;
  }

  .portfolio-pagination-wrap {
    margin-top: 20px;
    gap: 10px;
  }

  .portfolio-dots {
    gap: 4px;
    max-width: 320px;
    flex-wrap: wrap;
  }

  .portfolio-dot {
    width: 6px;
    height: 6px;
  }

  .portfolio-dot.active {
    width: 18px;
  }
  
  .modal-info-grid {
    grid-template-columns: 1fr;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background-color: #ffffff;
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    display: none;
    gap: 16px;
  }
  
  .nav-links.open {
    display: flex;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .hero-card-stack {
    padding: 16px;
  }

  .hero-slider-nav {
    top: 24px;
    right: 24px;
    padding: 4px 8px;
    gap: 6px;
  }

  .hero-floating-card {
    bottom: -15px;
    left: 8px;
    right: 8px;
    max-width: calc(100% - 16px);
    padding: 10px 14px;
    gap: 10px;
  }

  .floating-icon {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .floating-title {
    font-size: 0.88rem;
  }

  .floating-desc {
    font-size: 0.74rem;
  }
}