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

body {
  font-family: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background: linear-gradient(145deg, #f8faff 0%, #f0f2f8 100%);
  min-height: 100vh;
  padding-top: 100px;
  scroll-behavior: smooth;
}

.brand-logo {
  position: fixed;
  top: 24px;
  left: 28px;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #1e2a5e, #14203e);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 20px -8px rgba(0, 0, 0, 0.25), 0 0 0 3px rgba(255, 255, 255, 0.6);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  z-index: 1000;
  cursor: default;
}

.brand-logo:hover {
  transform: scale(1.02);
  box-shadow: 0 18px 26px -10px rgba(0, 0, 0, 0.3), 0 0 0 3px #ffffff;
}

.brand-logo span {
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: #ffde9c;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.menu-wrapper {
  max-width: 880px;
  margin: 0 auto 40px auto;
  padding: 0 20px;
}

.nav-menu {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  list-style: none;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(8px);
  border-radius: 80px;
  padding: 12px 28px;
  box-shadow: 0 12px 28px -8px rgba(0, 0, 0, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.menu-item {
  font-size: 1.12rem;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 40px;
  cursor: pointer;
  transition: all 0.25s ease;
  background: transparent;
  color: #1f2b48;
  letter-spacing: 0.3px;
  user-select: none;
}

.menu-item:hover {
  background: rgba(30, 42, 94, 0.1);
  transform: translateY(-2px);
  color: #0a1952;
}

.menu-item.active {
  background: #1e2a5e;
  color: white;
  box-shadow: 0 6px 14px rgba(30, 42, 94, 0.3);
}

.info-slider-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.slider-frame {
  background: #ffffff;
  border-radius: 2rem;
  box-shadow: 0 25px 45px -12px rgba(0, 0, 0, 0.2);
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(2px);
}

.slider-track {
  display: flex;
  transition: transform 0.55s cubic-bezier(0.2, 0.9, 0.4, 1.05);
  width: 100%;
}

.info-slide {
  flex: 0 0 100%;
  min-height: 380px;
  padding: 2rem 2rem 2.8rem 2rem;
  background: #ffffff;
  border-radius: 1.8rem;
}

.info-slide:nth-child(1) { background: #fefcf5; }
.info-slide:nth-child(2) { background: #f5f7fe; }
.info-slide:nth-child(3) { background: #fef7ec; }
.info-slide:nth-child(4) { background: #f1f5f9; }
.info-slide:nth-child(5) { background: #faf3e8; }

.slide-title {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(120deg, #1e2a5e, #2c3e7c);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  margin-bottom: 1.2rem;
  letter-spacing: -0.3px;
  border-left: 5px solid #ffb347;
  padding-left: 18px;
}

.slide-description {
  font-size: 1.08rem;
  line-height: 1.55;
  color: #2c3a4b;
  margin-bottom: 1.5rem;
}

.highlight-card {
  background: #eef2ff;
  border-radius: 24px;
  padding: 1.2rem 1.5rem;
  margin-top: 1.2rem;
  border-left: 4px solid #1e2a5e;
}

.badge {
  display: inline-block;
  background: #1e2a5e15;
  color: #1e2a5e;
  padding: 4px 14px;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

hr {
  margin: 20px 0;
  border: none;
  height: 2px;
  background: linear-gradient(90deg, #ccc, #ffffff);
}

@media (max-width: 720px) {
  body { padding-top: 85px; }
  .brand-logo { width: 52px; height: 52px; top: 16px; left: 18px; }
  .brand-logo span { font-size: 1.7rem; }
  .nav-menu { padding: 8px 16px; gap: 0.3rem; }
  .menu-item { padding: 6px 16px; font-size: 0.9rem; }
  .slide-title { font-size: 1.6rem; }
  .info-slide { padding: 1.5rem; min-height: 340px; }
}

@media (max-width: 540px) {
  .menu-item { padding: 5px 12px; font-size: 0.85rem; }
  .slide-title { font-size: 1.4rem; }
  .highlight-card { padding: 1rem; }
}

.menu-item:active { transform: scale(0.97); }

footer {
  text-align: center;
  margin-top: 4rem;
  padding: 1.2rem;
  font-size: 0.8rem;
  color: #5f6c84;
  border-top: 1px solid #e2e8f0;
  background: #ffffffc0;
  backdrop-filter: blur(4px);
}