:root {
  --bg-color: oklch(98% 0.01 100);
  --primary-green: oklch(60% 0.12 150);
  --dark-green: oklch(25% 0.08 150);
  --accent-tropical: oklch(70% 0.15 80);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --text-main: oklch(20% 0.05 150);
  --text-muted: oklch(45% 0.05 150);
  --card-bg: white;
  --shadow-soft: 0 10px 30px -5px oklch(20% 0.05 150 / 8%);
  --shadow-hover: 0 20px 40px -10px oklch(20% 0.1 150 / 12%);
}

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

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

/* Background Texture */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.02;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 30c0-16.568 13.432-30 30-30s30 13.432 30 30-13.432 30-30 30-30-13.432-30-30z' fill='%23000' fill-opacity='0.4' fill-rule='evenodd'/%3E%3C/svg%3E");
}

.main-header {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid oklch(90% 0.02 140);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark-green);
  letter-spacing: -0.03em;
}

.hero-section {
  padding: 8rem 2rem;
  text-align: center;
  background: radial-gradient(circle at center, oklch(95% 0.05 140) 0%, transparent 70%);
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 900;
  margin-bottom: 1.5rem;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--dark-green), var(--primary-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.gallery-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2.5rem;
}

.morph-card {
  background: var(--card-bg);
  border-radius: 1.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
  border: 1px solid oklch(95% 0.01 140);
  cursor: pointer;
}

.morph-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
}

.card-image-placeholder {
  width: 100%;
  height: 240px;
  position: relative;
}

.card-image-container {
  width: 100%;
  height: 240px;
  position: relative;
  overflow: hidden;
  background: oklch(95% 0.01 150);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.5s ease;
}

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

.upload-btn {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 0.6rem 1.2rem;
  border-radius: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dark-green);
  cursor: pointer;
  border: 1px solid white;
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
  z-index: 10;
}

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

.card-content {
  padding: 2rem;
}

.morph-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--dark-green);
}

.morph-description {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tag {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: oklch(95% 0.03 140);
  color: var(--dark-green);
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.main-footer {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
  border-top: 1px solid oklch(95% 0.02 140);
  margin-top: 4rem;
}

@media (max-width: 600px) {
  .hero-section {
    padding: 4rem 1.5rem;
  }
  .grid-container {
    grid-template-columns: 1fr;
  }
}