@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #ec4899;
  --bg-dark: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: #334155;
  --gradient-1: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
  --gradient-2: linear-gradient(135deg, #06b6d4 0%, #6366f1 100%);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 파티클 배경 */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--primary);
  border-radius: 50%;
  opacity: 0.3;
  animation: float 15s infinite ease-in-out;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) translateX(0);
    opacity: 0.3;
  }
  50% {
    transform: translateY(-100px) translateX(50px);
    opacity: 0.6;
  }
}

/* 네비게이션 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(15, 23, 42, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo-img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-1);
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--text-primary);
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* 히어로 섹션 */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 6rem 2rem 2rem;
  position: relative;
}

.hero-content {
  max-width: 1200px;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-logo {
  margin-bottom: 1.5rem;
}

.hero-logo-img {
  width: 120px;
  height: 120px;
  border-radius: 24px;
  box-shadow: 0 10px 40px rgba(99, 102, 241, 0.3);
  animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.brand-name {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  min-height: 2.5rem;
}

.typing-text {
  color: var(--primary);
  font-weight: 600;
}

.cursor {
  color: var(--primary);
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient-1);
  color: white;
  border: none;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
}

/* 코드 윈도우 */
.code-window {
  background: var(--bg-card);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-glow);
  border: 1px solid var(--border-color);
}

.window-header {
  background: #1a1a2e;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27ca40; }

.window-title {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-left: 0.5rem;
}

.window-body {
  padding: 1.5rem;
  overflow-x: auto;
}

.window-body pre {
  margin: 0;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.9rem;
  line-height: 1.8;
}

.window-body code {
  color: var(--text-secondary);
}

.keyword { color: #c792ea; }
.class-name { color: #82aaff; }
.function { color: #82aaff; }
.param { color: #f78c6c; }
.string { color: #c3e88d; }
.number { color: #f78c6c; }

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-indicator i {
  color: var(--text-muted);
  font-size: 1.5rem;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* 섹션 공통 */
.section {
  padding: 6rem 2rem;
  position: relative;
  z-index: 1;
}

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

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.title-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

/* About 섹션 */
.about-intro {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 1.25rem;
  color: var(--text-secondary);
}

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

.about-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.about-card {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.about-card:hover {
  transform: translateY(-5px);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-glow);
}

.about-icon {
  width: 70px;
  height: 70px;
  background: var(--gradient-1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin: 0 auto 1.5rem;
}

.about-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.about-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Skills 섹션 */
.skills {
  background: linear-gradient(180deg, var(--bg-dark) 0%, #131b2e 100%);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.skill-category {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 2rem;
  border: 1px solid var(--border-color);
}

.skill-category h3 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.skill-category h3 i {
  color: var(--primary);
}

.skill-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 8px;
  transition: all 0.3s ease;
  font-size: 0.85rem;
}

.skill-item:hover {
  background: rgba(99, 102, 241, 0.2);
  transform: translateX(3px);
}

.skill-item i {
  font-size: 1rem;
  color: var(--primary);
  width: 20px;
  text-align: center;
}

.skill-item span {
  font-weight: 500;
}

/* Projects 섹션 */
.projects-filter {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.625rem 1.5rem;
  border-radius: 25px;
  border: 2px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

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

.filter-btn.active {
  background: var(--gradient-1);
  border-color: transparent;
  color: white;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--bg-card);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  cursor: pointer;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
}

.project-image {
  width: 100%;
  height: 200px;
  position: relative;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.project-overlay span {
  color: white;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.project-info {
  padding: 1.5rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.project-tag {
  padding: 0.25rem 0.75rem;
  background: rgba(99, 102, 241, 0.2);
  color: var(--primary);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-price {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.project-price i {
  color: var(--secondary);
}

.project-price strong {
  color: var(--secondary);
  font-weight: 700;
  font-size: 1rem;
}

/* 프로젝트 미리보기 그래픽 스타일 */
.preview-graphic {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* 게임 스트리밍 플랫폼 */
.preview-streaming {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.preview-streaming .preview-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.preview-streaming .game-screen {
  width: 180px;
  height: 100px;
  background: linear-gradient(45deg, #0f0f23, #1a1a3e);
  border-radius: 8px;
  border: 2px solid #6366f1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.preview-streaming .play-icon {
  font-size: 2rem;
  color: #6366f1;
}

.preview-streaming .hud-overlay {
  position: absolute;
  bottom: 5px;
  right: 5px;
  background: rgba(0, 0, 0, 0.7);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.6rem;
  color: #10b981;
}

.preview-streaming .device-icons {
  display: flex;
  gap: 1.5rem;
}

.preview-streaming .device-icons i {
  font-size: 1.5rem;
  color: #94a3b8;
  opacity: 0.8;
}

/* 이커머스 */
.preview-ecommerce {
  background: linear-gradient(135deg, #1e3a5f 0%, #0d1b2a 100%);
}

.preview-ecommerce .preview-content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 80%;
}

.preview-ecommerce .product-card-mini {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.preview-ecommerce .product-img {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #6366f1, #ec4899);
  border-radius: 6px;
}

.preview-ecommerce .product-info-mini {
  flex: 1;
}

.preview-ecommerce .product-name {
  font-size: 0.7rem;
  color: #f8fafc;
  margin-bottom: 2px;
}

.preview-ecommerce .product-price {
  font-size: 0.65rem;
  color: #10b981;
}

.preview-ecommerce .cart-btn {
  background: #6366f1;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.6rem;
  color: white;
}

/* 방송알림 앱 */
.preview-broadcast {
  background: linear-gradient(135deg, #312e81 0%, #1e1b4b 100%);
}

.preview-broadcast .preview-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.preview-broadcast .phone-frame {
  width: 120px;
  height: 200px;
  background: #1f2937;
  border-radius: 20px;
  padding: 8px;
  border: 2px solid #374151;
}

.preview-broadcast .phone-screen {
  width: 100%;
  height: 100%;
  background: #111827;
  border-radius: 14px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.preview-broadcast .notification-item {
  background: rgba(99, 102, 241, 0.2);
  border-radius: 6px;
  padding: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.preview-broadcast .notification-item .avatar {
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, #ec4899, #8b5cf6);
  border-radius: 50%;
}

.preview-broadcast .notification-item .info {
  flex: 1;
}

.preview-broadcast .notification-item .name {
  font-size: 0.5rem;
  color: #f8fafc;
}

.preview-broadcast .notification-item .status {
  font-size: 0.45rem;
  color: #10b981;
}

.preview-broadcast .live-badge {
  background: #ef4444;
  color: white;
  font-size: 0.4rem;
  padding: 1px 4px;
  border-radius: 2px;
}

/* 소상공인 앱 */
.preview-business {
  background: linear-gradient(135deg, #065f46 0%, #064e3b 100%);
}

.preview-business .preview-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  width: 85%;
}

.preview-business .feature-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 0.75rem;
  text-align: center;
}

.preview-business .feature-card i {
  font-size: 1.25rem;
  color: #34d399;
  margin-bottom: 0.25rem;
}

.preview-business .feature-card span {
  font-size: 0.6rem;
  color: #d1fae5;
  display: block;
}

/* 리뷰 자동화 */
.preview-automation {
  background: linear-gradient(135deg, #7c2d12 0%, #431407 100%);
}

.preview-automation .preview-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.preview-automation .review-flow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.preview-automation .review-box {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 0.5rem;
  text-align: center;
  width: 70px;
}

.preview-automation .review-box i {
  font-size: 1.25rem;
  color: #fbbf24;
  margin-bottom: 0.25rem;
}

.preview-automation .review-box span {
  font-size: 0.55rem;
  color: #fef3c7;
  display: block;
}

.preview-automation .arrow {
  color: #fbbf24;
  font-size: 1rem;
}

.preview-automation .platforms {
  display: flex;
  gap: 1rem;
}

.preview-automation .platforms i {
  font-size: 1.25rem;
  color: #94a3b8;
}

/* 스도쿠 게임 */
.preview-sudoku {
  background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
}

.preview-sudoku .preview-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.preview-sudoku .sudoku-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: #3b82f6;
  padding: 2px;
  border-radius: 4px;
}

.preview-sudoku .sudoku-cell {
  width: 28px;
  height: 28px;
  background: #1e3a8a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: #93c5fd;
  font-weight: 600;
}

.preview-sudoku .sudoku-cell.filled {
  color: #f8fafc;
}

.preview-sudoku .game-info {
  display: flex;
  gap: 1rem;
  font-size: 0.6rem;
  color: #93c5fd;
}

/* 관리자 앱 */
.preview-admin {
  background: linear-gradient(135deg, #374151 0%, #1f2937 100%);
}

.preview-admin .preview-content {
  width: 85%;
}

.preview-admin .dashboard-mini {
  background: rgba(0, 0, 0, 0.3);
  border-radius: 10px;
  padding: 1rem;
}

.preview-admin .stats-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.preview-admin .stat-box {
  flex: 1;
  background: rgba(99, 102, 241, 0.2);
  border-radius: 6px;
  padding: 0.5rem;
  text-align: center;
}

.preview-admin .stat-box .number {
  font-size: 1rem;
  font-weight: 700;
  color: #6366f1;
}

.preview-admin .stat-box .label {
  font-size: 0.5rem;
  color: #94a3b8;
}

.preview-admin .chart-placeholder {
  height: 40px;
  background: linear-gradient(90deg,
    rgba(99, 102, 241, 0.3) 0%,
    rgba(99, 102, 241, 0.5) 50%,
    rgba(99, 102, 241, 0.3) 100%);
  border-radius: 4px;
}

/* CDN 서버 */
.preview-cdn {
  background: linear-gradient(135deg, #0c4a6e 0%, #082f49 100%);
}

.preview-cdn .preview-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.preview-cdn .server-icon {
  font-size: 3rem;
  color: #38bdf8;
}

.preview-cdn .connection-lines {
  display: flex;
  gap: 2rem;
}

.preview-cdn .node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.preview-cdn .node i {
  font-size: 1.25rem;
  color: #7dd3fc;
}

.preview-cdn .node span {
  font-size: 0.5rem;
  color: #bae6fd;
}

/* 텔레그램 봇 */
.preview-telegram {
  background: linear-gradient(135deg, #0088cc 0%, #005580 100%);
}

.preview-telegram .preview-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.preview-telegram .bot-avatar {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #29b6f6, #0288d1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: white;
}

.preview-telegram .message-bubbles {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 150px;
}

.preview-telegram .message {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 12px 12px 12px 4px;
  padding: 0.5rem 0.75rem;
  font-size: 0.55rem;
  color: #e0f7fa;
}

.preview-telegram .message.sent {
  background: rgba(255, 255, 255, 0.25);
  border-radius: 12px 12px 4px 12px;
  align-self: flex-end;
}

/* 작업 의뢰 프로세스 섹션 */
.process {
  background: linear-gradient(180deg, var(--bg-dark) 0%, #131b2e 100%);
}

.process-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 4rem;
}

.roadmap {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.roadmap-line {
  position: absolute;
  left: 30px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--primary), var(--secondary), #06b6d4, #10b981);
  border-radius: 3px;
}

.roadmap-item {
  display: flex;
  gap: 2rem;
  margin-bottom: 2.5rem;
  position: relative;
}

.roadmap-item:last-child {
  margin-bottom: 0;
}

.roadmap-icon {
  width: 60px;
  height: 60px;
  min-width: 60px;
  background: var(--bg-card);
  border: 3px solid var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--primary);
  z-index: 1;
  transition: all 0.3s ease;
}

.roadmap-item:hover .roadmap-icon {
  background: var(--primary);
  color: white;
  transform: scale(1.1);
  box-shadow: 0 0 25px rgba(99, 102, 241, 0.5);
}

.roadmap-content {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.roadmap-item:hover .roadmap-content {
  border-color: var(--primary);
  transform: translateX(5px);
  box-shadow: var(--shadow-glow);
}

.roadmap-step {
  display: inline-block;
  background: var(--gradient-1);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  margin-bottom: 0.75rem;
  letter-spacing: 1px;
}

.roadmap-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.roadmap-content > p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.roadmap-content ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.roadmap-content ul li {
  color: var(--text-secondary);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.roadmap-content ul li::before {
  content: "•";
  color: var(--primary);
  font-weight: bold;
}

.roadmap-content ul li.highlight {
  color: var(--secondary);
  font-weight: 600;
}

.roadmap-content ul li.highlight::before {
  color: var(--secondary);
}

.roadmap-content ul li.price {
  font-size: 1.1rem;
  font-weight: 700;
}

.process-note {
  max-width: 600px;
  margin: 3rem auto 0;
  text-align: center;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 12px;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.process-note i {
  color: var(--primary);
  font-size: 1.25rem;
}

.process-note span {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Contact 섹션 */
.contact {
  background: linear-gradient(180deg, #131b2e 0%, var(--bg-dark) 100%);
}

.contact-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

/* 포켓몬 카드 스타일 명함 */
.business-card-wrapper {
  perspective: 1000px;
  margin-bottom: 3rem;
}

.business-card {
  width: 380px;
  height: 220px;
  margin: 0 auto;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.1s ease-out;
  cursor: pointer;
}

.business-card-inner {
  width: 100%;
  height: 100%;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f0f23 100%);
  box-shadow:
    0 10px 40px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.1),
    inset 0 0 80px rgba(99, 102, 241, 0.1);
}

/* 홀로그램 효과 */
.card-holo-effect {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    125deg,
    transparent 0%,
    rgba(99, 102, 241, 0.1) 20%,
    rgba(236, 72, 153, 0.15) 40%,
    rgba(6, 182, 212, 0.1) 60%,
    rgba(99, 102, 241, 0.15) 80%,
    transparent 100%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  mix-blend-mode: overlay;
}

.business-card:hover .card-holo-effect {
  opacity: 1;
}

/* 홀로그램 빛 반사 */
.card-shine {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(255, 255, 255, 0.15) 0%,
    transparent 50%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.business-card:hover .card-shine {
  opacity: 1;
}

/* 홀로그램 스파클 효과 */
.card-sparkle {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.3) 0%, transparent 2%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.25) 0%, transparent 2%),
    radial-gradient(circle at 40% 70%, rgba(255, 255, 255, 0.2) 0%, transparent 2%),
    radial-gradient(circle at 70% 60%, rgba(255, 255, 255, 0.3) 0%, transparent 2%),
    radial-gradient(circle at 10% 80%, rgba(255, 255, 255, 0.25) 0%, transparent 2%),
    radial-gradient(circle at 90% 80%, rgba(255, 255, 255, 0.2) 0%, transparent 2%);
  opacity: 0;
  animation: sparkle 3s ease-in-out infinite;
  pointer-events: none;
}

.business-card:hover .card-sparkle {
  opacity: 1;
}

@keyframes sparkle {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.8; }
}

/* 무지개 테두리 */
.card-border {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 2px;
  background: linear-gradient(
    135deg,
    #6366f1,
    #ec4899,
    #06b6d4,
    #10b981,
    #f59e0b,
    #ef4444,
    #6366f1
  );
  background-size: 300% 300%;
  animation: borderGlow 4s ease infinite;
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.6;
  transition: opacity 0.3s ease;
}

.business-card:hover .card-border {
  opacity: 1;
}

@keyframes borderGlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* 명함 컨텐츠 */
.card-content {
  position: relative;
  z-index: 1;
  padding: 1.5rem 2rem;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.card-logo {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.card-brand {
  flex: 1;
}

.card-brand-name {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #6366f1 0%, #ec4899 50%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(99, 102, 241, 0.3);
}

.card-tagline {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.card-badge {
  background: linear-gradient(135deg, #6366f1, #ec4899);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.6rem;
  font-weight: 600;
  color: white;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.card-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.5), transparent);
  margin: 0.75rem 0;
}

.card-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.6rem;
}

.card-info-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
}

.card-info-item i {
  width: 28px;
  height: 28px;
  background: rgba(99, 102, 241, 0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--primary);
}

.card-info-item span {
  color: var(--text-secondary);
  font-weight: 500;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 0.5rem;
}

.card-qr-hint {
  font-size: 0.6rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.card-year {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* 기존 Contact 스타일 */
.contact-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.3s ease;
}

.contact-link:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary);
  transform: translateY(-3px);
}

.contact-link i {
  font-size: 1.5rem;
  color: var(--primary);
}

/* Footer */
.footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-logo {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  opacity: 0.7;
}

/* 모달 */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.modal.active {
  display: flex;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
}

.modal-content {
  position: relative;
  background: var(--bg-card);
  border-radius: 20px;
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-glow);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--bg-card-hover);
  color: var(--text-primary);
  font-size: 1.25rem;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
}

.modal-close:hover {
  background: var(--primary);
}

.modal-body {
  padding: 0;
}

.modal-preview {
  width: 100%;
  height: 300px;
  border-radius: 20px 20px 0 0;
  overflow: hidden;
}

.modal-info {
  padding: 2rem;
}

.modal-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.modal-price {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.15), rgba(99, 102, 241, 0.15));
  padding: 0.75rem 1.25rem;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(236, 72, 153, 0.3);
}

.modal-price i {
  color: var(--secondary);
  font-size: 1rem;
}

.modal-price span {
  color: var(--text-secondary);
  font-size: 1rem;
}

.modal-price strong {
  color: var(--secondary);
  font-weight: 700;
  font-size: 1.25rem;
}

.modal-description {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.modal-features {
  margin-bottom: 2rem;
}

.modal-features h4 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-features h4 i {
  color: var(--primary);
}

.modal-features ul {
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.modal-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--text-secondary);
}

.modal-features li i {
  color: var(--secondary);
  margin-top: 0.25rem;
}

.modal-tech {
  margin-bottom: 2rem;
}

.modal-tech h4 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-tech h4 i {
  color: var(--primary);
}

.modal-tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.modal-tech-item {
  padding: 0.5rem 1rem;
  background: rgba(99, 102, 241, 0.15);
  color: var(--primary);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
}

.modal-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.modal-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.modal-link.primary {
  background: var(--gradient-1);
  color: white;
}

.modal-link.secondary {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.modal-link:hover {
  transform: translateY(-2px);
}

/* 반응형 */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-logo {
    display: flex;
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .hero-buttons {
    justify-content: center;
  }

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

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

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-card);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-logo-img {
    width: 80px;
    height: 80px;
  }

  .about-content {
    grid-template-columns: 1fr;
  }

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

  .section-title {
    font-size: 2rem;
  }

  .contact-links {
    flex-direction: column;
    align-items: center;
  }

  /* 로드맵 반응형 */
  .roadmap-line {
    left: 20px;
  }

  .roadmap-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    font-size: 1rem;
  }

  .roadmap-item {
    gap: 1rem;
  }

  .roadmap-content {
    padding: 1rem;
  }

  .roadmap-content h3 {
    font-size: 1.1rem;
  }

  .roadmap-content > p {
    font-size: 0.85rem;
  }

  .roadmap-content ul li {
    font-size: 0.8rem;
  }

  .process-note {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
  }

  .business-card {
    width: 320px;
    height: 190px;
  }

  .card-logo {
    width: 44px;
    height: 44px;
  }

  .card-brand-name {
    font-size: 1.25rem;
  }

  .card-tagline {
    font-size: 0.6rem;
  }

  .card-badge {
    font-size: 0.5rem;
    padding: 0.2rem 0.5rem;
  }

  .card-info-item {
    font-size: 0.75rem;
  }

  .card-info-item i {
    width: 24px;
    height: 24px;
    font-size: 0.7rem;
  }

  .modal-content {
    margin: 1rem;
  }

  .modal-links {
    flex-direction: column;
  }

  .modal-link {
    text-align: center;
    justify-content: center;
  }

  .modal-preview {
    height: 200px;
  }
}

/* 스크롤바 스타일 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* 애니메이션 - Apple 스타일 스크롤 애니메이션 */
.scroll-animate {
  opacity: 0;
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-animate.visible {
  opacity: 1;
}

/* Fade Up 애니메이션 */
.scroll-animate[data-animation="fade-up"] {
  transform: translateY(60px);
}

.scroll-animate[data-animation="fade-up"].visible {
  transform: translateY(0);
}

/* Fade Down 애니메이션 */
.scroll-animate[data-animation="fade-down"] {
  transform: translateY(-60px);
}

.scroll-animate[data-animation="fade-down"].visible {
  transform: translateY(0);
}

/* Fade Left 애니메이션 */
.scroll-animate[data-animation="fade-left"] {
  transform: translateX(60px);
}

.scroll-animate[data-animation="fade-left"].visible {
  transform: translateX(0);
}

/* Fade Right 애니메이션 */
.scroll-animate[data-animation="fade-right"] {
  transform: translateX(-60px);
}

.scroll-animate[data-animation="fade-right"].visible {
  transform: translateX(0);
}

/* Scale 애니메이션 */
.scroll-animate[data-animation="scale"] {
  transform: scale(0.8);
}

.scroll-animate[data-animation="scale"].visible {
  transform: scale(1);
}

/* Scale Up 애니메이션 */
.scroll-animate[data-animation="scale-up"] {
  transform: scale(0.8) translateY(40px);
}

.scroll-animate[data-animation="scale-up"].visible {
  transform: scale(1) translateY(0);
}

/* Rotate 애니메이션 */
.scroll-animate[data-animation="rotate"] {
  transform: rotate(-5deg) translateY(40px);
}

.scroll-animate[data-animation="rotate"].visible {
  transform: rotate(0deg) translateY(0);
}

/* Blur 애니메이션 */
.scroll-animate[data-animation="blur"] {
  filter: blur(10px);
  transform: translateY(30px);
}

.scroll-animate[data-animation="blur"].visible {
  filter: blur(0);
  transform: translateY(0);
}

/* Clip 애니메이션 */
.scroll-animate[data-animation="clip"] {
  clip-path: inset(0 100% 0 0);
}

.scroll-animate[data-animation="clip"].visible {
  clip-path: inset(0 0 0 0);
}

/* Stagger 딜레이 */
.scroll-animate[data-delay="1"] { transition-delay: 0.1s; }
.scroll-animate[data-delay="2"] { transition-delay: 0.2s; }
.scroll-animate[data-delay="3"] { transition-delay: 0.3s; }
.scroll-animate[data-delay="4"] { transition-delay: 0.4s; }
.scroll-animate[data-delay="5"] { transition-delay: 0.5s; }
.scroll-animate[data-delay="6"] { transition-delay: 0.6s; }
.scroll-animate[data-delay="7"] { transition-delay: 0.7s; }
.scroll-animate[data-delay="8"] { transition-delay: 0.8s; }

/* 섹션 타이틀 특별 애니메이션 */
.section-title.scroll-animate {
  overflow: hidden;
}

.section-title.scroll-animate .title-icon {
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}

.section-title.scroll-animate:not(.visible) .title-icon {
  transform: scale(0) rotate(-180deg);
}

.section-title.scroll-animate.visible .title-icon {
  transform: scale(1) rotate(0deg);
}

/* 히어로 섹션 애니메이션 */
.hero-text {
  opacity: 0;
  transform: translateY(40px);
  animation: heroFadeIn 1s cubic-bezier(0.16, 1, 0.3, 1) 0.3s forwards;
}

.hero-visual {
  opacity: 0;
  transform: translateX(40px);
  animation: heroSlideIn 1s cubic-bezier(0.16, 1, 0.3, 1) 0.6s forwards;
}

@keyframes heroFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroSlideIn {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 로드맵 아이템 순차 애니메이션 */
.roadmap-item.scroll-animate {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.roadmap-item.scroll-animate.visible {
  opacity: 1;
  transform: translateX(0);
}

.roadmap-item.scroll-animate .roadmap-icon {
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s,
              opacity 0.5s ease 0.2s;
}

.roadmap-item.scroll-animate:not(.visible) .roadmap-icon {
  transform: scale(0);
  opacity: 0;
}

.roadmap-item.scroll-animate.visible .roadmap-icon {
  transform: scale(1);
  opacity: 1;
}

/* 프로젝트 카드 hover 전 애니메이션 */
.project-card.scroll-animate {
  opacity: 0;
  transform: translateY(50px) scale(0.95);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s ease;
}

.project-card.scroll-animate.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* 스킬 카테고리 애니메이션 */
.skill-category.scroll-animate {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.skill-category.scroll-animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 스킬 아이템 순차 등장 */
.skill-category.scroll-animate .skill-item {
  opacity: 0;
  transform: translateX(-20px);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.skill-category.scroll-animate.visible .skill-item {
  opacity: 1;
  transform: translateX(0);
}

.skill-category.scroll-animate.visible .skill-item:nth-child(1) { transition-delay: 0.1s; }
.skill-category.scroll-animate.visible .skill-item:nth-child(2) { transition-delay: 0.15s; }
.skill-category.scroll-animate.visible .skill-item:nth-child(3) { transition-delay: 0.2s; }
.skill-category.scroll-animate.visible .skill-item:nth-child(4) { transition-delay: 0.25s; }
.skill-category.scroll-animate.visible .skill-item:nth-child(5) { transition-delay: 0.3s; }
.skill-category.scroll-animate.visible .skill-item:nth-child(6) { transition-delay: 0.35s; }

/* About 카드 애니메이션 */
.about-card.scroll-animate {
  opacity: 0;
  transform: translateY(50px) rotateX(10deg);
  transform-origin: center bottom;
  transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.about-card.scroll-animate.visible {
  opacity: 1;
  transform: translateY(0) rotateX(0deg);
}

/* About 아이콘 bounce 효과 */
.about-card.scroll-animate .about-icon {
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.3s;
}

.about-card.scroll-animate:not(.visible) .about-icon {
  transform: scale(0);
}

.about-card.scroll-animate.visible .about-icon {
  transform: scale(1);
}

/* Contact 섹션 명함 애니메이션 */
.business-card-wrapper.scroll-animate {
  opacity: 0;
  transform: perspective(1000px) rotateY(-15deg) translateZ(-100px);
  transition: all 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.business-card-wrapper.scroll-animate.visible {
  opacity: 1;
  transform: perspective(1000px) rotateY(0deg) translateZ(0);
}

/* Contact 링크 순차 등장 */
.contact-link.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.contact-link.scroll-animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 기존 fade-in 유지 (호환성) */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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