body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: radial-gradient(circle at top, #100c26 0%, #09090f 80%);
  color: #eef1ff;
}

.close-btn {
  position: fixed;
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 2px solid rgba(255, 255, 255, 0.14);
  color: #ffffff;
  font-size: 26px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
  z-index: 9999;
  transition: transform 0.18s ease, background 0.18s ease;
}

.close-btn:hover,
.close-btn:focus {
  transform: scale(1.08);
  background: rgba(255, 255, 255, 0.12);
  outline: none;
}

.content {
  padding: 2.5rem 1.5rem 4rem;
  max-width: 1080px;
  margin: 0 auto;
}

.content h1 {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  margin-bottom: 0.5rem;
}

.content h2 {
  font-size: 1.05rem;
  color: #c9bdf5;
  font-weight: 500;
  margin-bottom: 2rem;
}

.project-section {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 36px;
  padding: 2rem;
  box-shadow: 0 36px 90px rgba(0, 0, 0, 0.24);
  margin-bottom: 1.5rem;
}

.project-section h2 {
  margin: 0 0 1.25rem;
  color: #ffffff;
}

.project-section ul {
  margin: 0 0 0 1.25rem;
  color: #d7d5ef;
}

@media (min-width: 900px) {
  .project-section {
    padding: 2.5rem;
  }
}