/* index.css */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700;900&family=Outfit:wght@300;400;600;800&display=swap');

:root {
  --primary: #0a4025;
  --primary-glow: #135d39;
  --accent: #d4af37;
  --accent-glow: rgba(212, 175, 55, 0.4);
  --dark-bg: #04120b;
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --text-light: #f3f4f6;
  --text-muted: #9ca3af;
  --font-ko: 'Noto Sans KR', sans-serif;
  --font-en: 'Outfit', sans-serif;
}

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

body {
  background-color: var(--dark-bg);
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(15, 81, 50, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(212, 175, 55, 0.08) 0%, transparent 45%),
    linear-gradient(135deg, var(--dark-bg) 0%, #082114 100%);
  color: var(--text-light);
  font-family: var(--font-ko);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  padding: 2rem 1rem;
  position: relative;
}

/* Ambient glow effect */
body::before {
  content: '';
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(19, 93, 57, 0.2) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
  filter: blur(40px);
}

.container {
  width: 100%;
  max-width: 620px;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Header Brand Logo Style */
.brand {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  text-align: center;
}

.brand-title {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 1.8rem;
  letter-spacing: 0.15em;
  background: linear-gradient(135deg, #ffffff 40%, #e2e8f0 70%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-transform: uppercase;
}

.brand-subtitle {
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.3em;
  font-weight: 500;
  text-transform: uppercase;
}

/* Premium Card Wrapper */
.card-wrapper {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 24px;
  padding: 12px;
  box-shadow: 
    0 4px 30px rgba(0, 0, 0, 0.4),
    0 1px 3px rgba(255, 255, 255, 0.05) inset,
    0 0 80px rgba(10, 64, 37, 0.2);
  width: 100%;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  position: relative;
  overflow: hidden;
}

.card-wrapper::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent 45%, rgba(255, 255, 255, 0.05) 50%, transparent 55%);
  transform: rotate(45deg);
  pointer-events: none;
  animation: shine 6s infinite linear;
}

.card-wrapper:hover {
  transform: translateY(-5px);
  box-shadow: 
    0 30px 60px rgba(0, 0, 0, 0.6),
    0 1px 3px rgba(255, 255, 255, 0.08) inset,
    0 0 100px rgba(19, 93, 57, 0.3);
}

.image-container {
  position: relative;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.event-banner {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.card-wrapper:hover .event-banner {
  transform: scale(1.015);
}

/* Call to Action Button */
.cta-container {
  width: 100%;
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  background: linear-gradient(135deg, var(--accent) 0%, #b89224 100%);
  color: #0b1f15;
  font-family: var(--font-ko);
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  padding: 1.1rem 2.5rem;
  border-radius: 50px;
  width: 100%;
  max-width: 320px;
  box-shadow: 0 10px 25px rgba(212, 175, 55, 0.25);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transition: all 0.5s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 
    0 15px 30px rgba(212, 175, 55, 0.4),
    0 0 0 4px rgba(212, 175, 55, 0.15);
  background: linear-gradient(135deg, #f0c94d 0%, #ca9f27 100%);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 
    0 5px 15px rgba(212, 175, 55, 0.3),
    0 0 0 2px rgba(212, 175, 55, 0.15);
}

.btn-primary svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  transition: transform 0.3s ease;
}

.btn-primary:hover svg {
  transform: translateX(4px);
}

/* Footer Section */
footer {
  margin-top: 3rem;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  z-index: 1;
}

footer p {
  margin-bottom: 0.3rem;
}

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

@keyframes shine {
  0% {
    left: -100%;
    top: -100%;
  }
  100% {
    left: 100%;
    top: 100%;
  }
}

/* Responsiveness overrides */
@media (max-width: 480px) {
  body {
    padding: 1.5rem 0.8rem;
  }
  .brand-title {
    font-size: 1.5rem;
  }
  .card-wrapper {
    border-radius: 18px;
    padding: 8px;
  }
  .image-container {
    border-radius: 12px;
  }
  .btn-primary {
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}