* { font-family: 'Pretendard', 'Apple SD Gothic Neo', 'Noto Sans KR', sans-serif; }
html { scroll-behavior: smooth; }

/* 커스텀 그라디언트 */
.hero-gradient {
  background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 40%, #fdf4ff 100%);
}
.blue-gradient {
  background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #60a5fa 100%);
}
.coral-gradient {
  background: linear-gradient(135deg, #ff5c3a 0%, #ff7a5c 50%, #ffab9a 100%);
}
.section-alt {
  background: linear-gradient(180deg, #f8fafc 0%, #eff6ff 100%);
}
.card-hover {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.card-hover:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(37, 99, 235, 0.12);
}
.step-line::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 48px;
  bottom: -24px;
  width: 2px;
  background: linear-gradient(180deg, #3b82f6, #60a5fa);
  transform: translateX(-50%);
  z-index: 0;
}
.float-badge {
  animation: float 3s ease-in-out infinite;
}
.float-badge-1 { animation-delay: 0s; }
.float-badge-2 { animation-delay: 0.8s; }
.float-badge-3 { animation-delay: 1.6s; }
@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(3deg); }
}
.navbar-blur {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(255,255,255,0.85);
}
.input-focus:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}
/* 타임라인 연결선 (데스크탑) */
@media (min-width: 768px) {
  .timeline-connector {
    display: block;
  }
}
/* 바이럴 루프 화살표 */
.loop-arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #60a5fa);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 14px;
  flex-shrink: 0;
}
/* 스크롤 진행 표시 */
#progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, #3b82f6, #ff5c3a);
  z-index: 9999;
  transition: width 0.1s;
}
/* CTA 버튼 shimmer 효과 */
.btn-shimmer {
  position: relative;
  overflow: hidden;
}
.btn-shimmer::after {
  content: '';
  position: absolute;
  top: 0; left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  animation: shimmer 2.5s infinite;
}
@keyframes shimmer {
  0% { left: -75%; }
  100% { left: 125%; }
}
/* 비교표 강조 */
.after-highlight {
  background: linear-gradient(135deg, #eff6ff, #e0f2fe);
  border: 2px solid #3b82f6;
}
/* 폼 제출 성공 */
#success-msg { display: none; }
/* placeholder 색상 */
::placeholder { color: #94a3b8; }