/* 히어로 슬라이더 - CoolCheck 스타일: 이미지 배경 + 텍스트 오버레이 */
.hero-slider {
  position: relative;
  margin-top: 90px;
  overflow: hidden;
}

.slider-track {
  position: relative;
  height: 440px;
}

.slide {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}

.slide.active {
  opacity: 1;
  pointer-events: auto;
}

.slide-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(15, 27, 61, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.slide-content {
  max-width: 700px;
  padding: 0 40px;
}

.slide-content h1 {
  font-size: 40px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.slide-content h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 6px;
  margin-bottom: 16px;
}

.slide-content p {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
  margin-bottom: 28px;
}

/* 화살표 */
.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.6);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.15s;
  z-index: 10;
}

.slider-arrow:hover {
  border-color: rgba(255,255,255,0.5);
  color: var(--white);
}

.slider-arrow.prev { left: 20px; }
.slider-arrow.next { right: 20px; }

/* 도트 */
.slider-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: background 0.2s;
}

.dot.active {
  background: var(--white);
}

/* 기능 아이콘 그리드 */
.feature-grid-icons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 32px;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.feature-item img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  margin-bottom: 16px;
}

.feature-item h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 6px;
}

.feature-item p {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .slide {
    flex-direction: column;
    padding: 40px 20px;
    text-align: center;
    height: auto;
  }
  .slide-content { max-width: 100%; }
  .slide-image { display: none; }
  .slider-track { height: 320px; }
  .feature-grid-icons {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px 20px;
  }
}