body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: linear-gradient(135deg, #181c2f 0%, #2d225a 100%);
  min-height: 100vh;
  margin: 0;
  padding: 0;
  color: #e5e7ef;
}
.container {
  max-width: 600px;
  margin: 40px auto;
  padding: 0 12px;
}
.step-section {
  display: block;
  background: rgba(30, 34, 54, 0.85);
  border-radius: 18px;
  box-shadow: 0 4px 32px rgba(0,0,0,0.25);
  padding: 40px 28px 32px 28px;
  margin-bottom: 48px;
  border: 1.5px solid rgba(80, 90, 200, 0.18);
  backdrop-filter: blur(8px);
  position: relative;
  transition: transform 0.18s cubic-bezier(0.4,0,0.2,1), box-shadow 0.18s;
}
.step-section:hover {
  transform: translateY(-6px) scale(1.012);
  box-shadow: 0 8px 40px 0 #7f7fff55, 0 4px 32px rgba(0,0,0,0.25);
}
.step-section.active {
  display: block;
}
.navigation {
  display: flex;
  justify-content: space-between;
  margin-top: 32px;
}
button {
  background: #2d6cdf;
  color: #fff;
  border: none;
  border-radius: 5px;
  padding: 10px 28px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}
button:disabled {
  background: #b0b0b0;
  cursor: not-allowed;
}
button:hover:not(:disabled) {
  background: #1a4fa0;
}
h1 {
  font-size: 2rem;
  margin-bottom: 12px;
  color: #7f7fff;
  letter-spacing: 1px;
  font-family: 'Segoe UI Semibold', Arial, sans-serif;
}
h2 {
  color: #b8b8ff;
}
ul, p, li, em, strong {
  color: #e5e7ef;
}
a {
  color: #6ad1ff;
  text-decoration: underline;
}
a:hover {
  color: #b8b8ff;
}
.profile-photo {
  display: block;
  margin: 0 auto 18px auto;
  width: 140px;
  height: 140px;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 4px 32px rgba(80, 90, 200, 0.25), 0 0 0 6px #23264a;
  border: 4px solid #7f7fff;
  background: #23264a;
  transition: box-shadow 0.3s;
}
.profile-photo:hover {
  box-shadow: 0 0 24px 6px #6ad1ff, 0 4px 32px rgba(80, 90, 200, 0.25);
  border-color: #6ad1ff;
}
.reveal-section {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.4,0,0.2,1);
  margin-bottom: 48px;
}
.reveal-section.visible {
  opacity: 1;
  transform: none;
}
::-webkit-scrollbar {
  width: 8px;
  background: #23264a;
}
::-webkit-scrollbar-thumb {
  background: #393e6b;
  border-radius: 8px;
}
.section-sticker {
  position: absolute;
  top: -22px;
  right: -22px;
  width: 54px;
  height: 54px;
  background: linear-gradient(135deg, #7f7fff 60%, #6ad1ff 100%);
  color: #fff;
  font-size: 2rem;
  border-radius: 50%;
  box-shadow: 0 0 16px 4px #6ad1ff88, 0 2px 8px #23264a;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid #23264a;
  z-index: 2;
  user-select: none;
  pointer-events: none;
  font-family: inherit;
  transition: box-shadow 0.2s;
}
.step-section:hover .section-sticker {
  box-shadow: 0 0 32px 8px #6ad1ffcc, 0 2px 8px #23264a;
}