body {
  background: #f7f0fa;
  font-family: 'Segoe UI', Arial, sans-serif;
  color: #473356;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 700px;
  margin: 32px auto;
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 6px 18px rgba(120, 40, 80, 0.07);
  padding: 32px 14px;
}

h1 {
  text-align: center;
  color: #e75480;
  margin-bottom: 36px;
  letter-spacing: 2px;
  font-size: 2rem;
}
h1 .fa-heart {
  color: #ff6584;
}

.timeline {
  margin-bottom: 40px;
}

.milestone {
  margin-bottom: 28px;
  text-align: center;
}

.milestone h2 {
  color: #ff6584;
  margin-bottom: 8px;
  font-size: 1.2rem;
}

.milestone p, h3 {
  font-style: italic;
  color: #a05a8c;
  margin-bottom: 0;
  font-size: 1rem;
}

.photos-section {
  margin-top: 40px;
  text-align: center;
}

.photos-section h2 {
  color: #ba4470;
  margin-bottom: 16px;
  font-size: 1.3rem;
}

/* Slider container rộng bằng container */
.slider-container {
  width: 100%;
  max-width: 100%;
  margin: 0 auto 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

/* Slider chiếm toàn bộ chiều rộng container */
.slider {
  display: flex;
  overflow-x: auto;
  scroll-behavior: smooth;
  gap: 18px;
  width: 100%;
  max-width: 100%;
  justify-content: flex-start;
  align-items: center;
  /* Ẩn scroll bar */
  scrollbar-width: none;
}

.slider::-webkit-scrollbar {
  display: none;
}

/* Ảnh cao 80% chiều cao container, responsive */
.slider img {
  height: 80vh; /* 80% chiều cao màn hình */
  max-height: 640px; /* không vượt quá 640px */
  aspect-ratio: 2/3;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 3px 18px rgba(100,40,60,0.11);
  background: #e5e5e5;
  width: auto;
  flex-shrink: 0;
  transition: transform 0.2s;
}

/* Nút chuyển slide dưới slider */
.slider-btn {
  background: #fff7fa;
  border: 2px solid #e7bcd2;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 1.45rem;
  color: #e75480;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 6px rgba(100,40,60,0.08);
  z-index: 10;
  margin: 0 12px;
}

.slider-btn:hover {
  background: #ffe0ef;
  border-color: #ff9abe;
}

/* Nút chuyển xuống dưới slider */
.slider-container {
  flex-direction: column;
}

.slider-btn.left,
.slider-btn.right {
  order: 2;
}

.slider {
  order: 1;
}

.slider-btn-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  margin-top: 12px;
}

/* Responsive mobile */
@media (max-width: 600px) {
  .container {
    padding: 12px 2px;
  }
  .slider img {
    height: 60vh;
    max-height: 380px;
  }
  .slider {
    gap: 10px;
  }
  .slider-btn {
    width: 38px;
    height: 38px;
    font-size: 1.15rem;
    margin: 0 6px;
  }
  .slider-btn-group {
    gap: 12px;
    margin-top: 6px;
  }
}