:root {
  --color-bg: #030712;
  --color-text: #f9fafb;
  --color-text-muted: #9ca3af;
  --color-primary: #ec4899;
  --color-primary-glow: rgba(236, 72, 153, 0.4);
  --color-secondary: #8b5cf6;
  --color-accent: #3b82f6;

  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);

  --font-sans: 'Outfit', 'Noto Sans KR', sans-serif;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
  line-height: 1.6;
}

/* Background Animated Blobs */
.background-blobs {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
  animation: float 20s infinite alternate ease-in-out;
}

.shape-1 {
  top: -10%;
  left: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, var(--color-secondary), transparent 70%);
  animation-delay: 0s;
}

.shape-2 {
  top: 40%;
  right: -20%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, var(--color-primary), transparent 70%);
  animation-delay: -5s;
}

.shape-3 {
  bottom: -20%;
  left: 20%;
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, var(--color-accent), transparent 70%);
  animation-delay: -10s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(5%, 10%) scale(1.1); }
  66% { transform: translate(-5%, 5%) scale(0.9); }
  100% { transform: translate(5%, -5%) scale(1.05); }
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  background: rgba(3, 7, 18, 0.5);
  transition: all 0.3s ease;
}

.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;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff, #d1d5db);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.8rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.btn-outline {
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--color-text);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  border: none;
  box-shadow: 0 10px 20px -10px var(--color-primary-glow);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: -1;
  border-radius: 9999px;
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 30px -10px var(--color-primary-glow);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 2rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4rem;
  width: 100%;
}

.hero-text {
  flex: 1;
  max-width: 600px;
}

.badge {
  display: inline-block;
  padding: 0.4rem 1.2rem;
  border-radius: 9999px;
  background: rgba(236, 72, 153, 0.1);
  border: 1px solid rgba(236, 72, 153, 0.3);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  animation: fadeInDown 0.8s ease backwards;
}

.hero-text h1 {
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
  background: linear-gradient(to right, #fff, #9ca3af);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-text p {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  animation: fadeInUp 0.8s ease 0.4s backwards;
}

.hero-actions {
  animation: fadeInUp 0.8s ease 0.6s backwards;
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  animation: scaleIn 1s cubic-bezier(0.16, 1, 0.3, 1) 0.4s backwards;
}

.app-icon-wrapper {
  position: relative;
  width: 280px;
  height: 280px;
  border-radius: 60px;
  background: rgba(255, 255, 255, 0.05);
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
  transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
  transition: transform 0.5s ease;
}

.app-icon-wrapper:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg) translateY(-10px);
}

.app-icon {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 40px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.glow-effect {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 150%;
  height: 150%;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  z-index: -1;
  pointer-events: none;
  filter: blur(40px);
  animation: pulse 4s infinite alternate;
}

/* Features Section */
.features {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-title p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 2.5rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.glass::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.glass:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.glass:hover::before {
  transform: translateX(100%);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  display: inline-block;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.card p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* Footer */
.footer {
  padding: 4rem 2rem;
  text-align: center;
  border-top: 1px solid var(--glass-border);
  background: rgba(3, 7, 18, 0.8);
  margin-top: 4rem;
}

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

.footer-logo {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: #fff;
}

.footer p {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.copyright {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.4);
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9) rotateY(-20deg); }
  to { opacity: 1; transform: scale(1) rotateY(-10deg); }
}

@keyframes pulse {
  0% { transform: translate(-50%, -50%) scale(0.9); opacity: 0.5; }
  100% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.8; }
}

/* Responsive */
@media (max-width: 900px) {
  .hero-content {
    flex-direction: column;
    text-align: center;
  }
  .hero-text {
    max-width: 100%;
  }
  .hero-text h1 {
    font-size: clamp(2.5rem, 8vw, 3.5rem);
  }
  .hero-actions {
    justify-content: center;
  }
  .app-icon-wrapper {
    transform: none;
    width: 240px;
    height: 240px;
  }
  .app-icon-wrapper:hover {
    transform: translateY(-10px);
  }
  .shape-1, .shape-2, .shape-3 {
    width: 80vw;
    height: 80vw;
  }
}