:root {
  --bg-color: #ffffff;
  --pill-bg: #f3f4f6;
  --text-dark: #000000;
  --text-muted: #1a1a1a;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

.main-container {
  max-width: 1200px;
  padding: 100px 24px 80px;
  margin: auto;
}

.header-section h1 {
  font-size: 48px;
  margin-bottom: 40px;
}

.layout-grid {
  display: grid;
  grid-template-columns: 440px 1fr;
  gap: 50px;
}

.feature-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 16px;
}

.feature-pill {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  background: var(--pill-bg);
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  width: fit-content;
}

.feature-pill.active {
  background: #fff;
  box-shadow: var(--shadow);
}

.description-box {
  background: var(--pill-bg);
  border-radius: 24px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all 0.4s var(--ease);
}

.active .description-box {
  max-height: 200px;
  opacity: 1;
  margin-top: 12px;
  padding: 24px;
}

.image-container {
  border: 1px solid #eee;
  border-radius: 30px;
  padding: 40px;
  position: sticky;
  top: 20px;
}

.image-container img {
  width: 100%;
  border-radius: 15px;
}

.mobile-view {
  display: none;
  flex-direction: column;
  gap: 40px;
  align-items: center;
}

.mobile-carousel {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  justify-content: center;
}

.mobile-card {
  background: #fff;
  padding: 20px;
  border-radius: 30px;
  box-shadow: 0 10px 50px rgba(0, 0, 0, 0.08);
  width: 85%;
}

.mobile-card img {
  width: 100%;
  border-radius: 20px;
}

.nav-btn {
  position: absolute;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 20px;
}

.prev {
  left: -10px;
}
.next {
  right: -10px;
}

.mobile-content-area {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #fff;
}

.icon-wrapper svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

@media (max-width: 850px) {
  .header-section h1 {
    font-size: 24px;
  }

  .layout-grid {
    display: none;
  }

  .mobile-view {
    display: flex;
  }
}