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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  transition: background 0.3s ease, color 0.3s ease;
}

a { text-decoration: none; color: inherit; }
button { font-family: var(--font); cursor: pointer; }
input, select, textarea { font-family: var(--font); }
img { display: block; max-width: 100%; }
ul, ol { list-style: none; }

/* 노이즈 텍스처 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}

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

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--lime);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 900;
  letter-spacing: -1.5px;
  line-height: 1.1;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 18px;
  color: var(--text2);
  font-weight: 400;
  line-height: 1.6;
  max-width: 480px;
}

/* 버튼 공통 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--lime);
  color: var(--dark);
  font-size: 15px;
  font-weight: 800;
  padding: 14px 28px;
  border-radius: var(--radius);
  border: none;
  transition: all 0.2s;
  letter-spacing: -0.3px;
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--lime-dim);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lime);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all 0.2s;
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: var(--text2);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: all 0.2s;
}
.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.05);
}

/* 카드 공통 */
.card {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all 0.3s;
}
.card:hover {
  border-color: var(--border-hover);
}

/* 배지 공통 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
}
.badge-lime { background: rgba(190,255,0,0.1); border: 1px solid var(--lime-border); color: var(--lime); }
.badge-orange { background: rgba(255,107,53,0.1); border: 1px solid rgba(255,107,53,0.25); color: var(--orange); }
.badge-purple { background: rgba(179,136,255,0.1); border: 1px solid rgba(179,136,255,0.25); color: var(--purple); }
.badge-blue { background: rgba(79,195,247,0.1); border: 1px solid rgba(79,195,247,0.25); color: var(--blue); }

/* 리빌 애니메이션 */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

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

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@keyframes pulse {
  0%, 100% { opacity: 0.6; transform: translate(-50%, -60%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -60%) scale(1.1); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}