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

:root {
  --primary: #FF6B00;
  --primary-light: #FF8E3D;
  --primary-dark: #E66000;
  --secondary: #FFF4E6;
  --accent: #FFD43B;
  --text-main: #1A1A1A;
  --text-muted: #666666;
  --bg-main: #FFFFFF;
  --bg-sub: #F8F9FA;
  --glass: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 24px rgba(0,0,0,0.12);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
}

html {
  scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.2;
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Layout Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 100px 0;
}

/* Components */
.glass-card {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  padding: 12px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo img {
  width: 32px;
  height: 32px;
}

.logo span {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-main);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 14px rgba(255, 107, 0, 0.4);
}

.btn-secondary {
  background: var(--bg-sub);
  color: var(--text-main);
  border: 1px solid #E9ECEF;
}

.store-badge {
  transition: var(--transition);
}

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

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out forwards;
}

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }

/* Custom Styles for BBGG */
.hero-visual {
  position: relative;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
}

.hero-visual img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.15));
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.feature-card {
  padding: 40px;
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid #F1F3F5;
  transition: var(--transition);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: var(--secondary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 24px;
  color: var(--primary);
}

/* Background elements */
.blob {
  position: fixed;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,107,0,0.1) 0%, rgba(255,255,255,0) 70%);
  border-radius: 50%;
  z-index: -1;
  filter: blur(40px);
}

.blob-1 { top: -100px; right: -100px; }
.blob-2 { bottom: -100px; left: -100px; }

/* Responsive adjustments */
@media (max-width: 768px) {
  .section-padding {
    padding: 60px 0;
  }
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  .hero-flex {
    flex-direction: column;
    text-align: center;
  }
}