body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #000;
  color: #fff;
  overflow-x: hidden;
  position: relative;
}

.polygon-left,
.polygon-right {
  position: absolute;
  top: 0;
  width: 300px;
  height: 100%;
  z-index: 0;
  background: radial-gradient(circle at top left, #00ffcc33, transparent 70%);
}

.polygon-left {
  left: 0;
}

.polygon-right {
  right: 0;
  background: radial-gradient(circle at top right, #ff33cc33, transparent 70%);
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 20px;
  position: relative;
  z-index: 1;
  background-color: #111827;
  border-radius: 16px;
  box-shadow: 0 0 30px #1f2937;
  border: 1px solid #374151;
}

header {
  text-align: center;
  margin-bottom: 40px;
}

header h1 {
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 20px;
  color: #10b981;
}

header img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  border: 2px solid #4b5563;
  box-shadow: 0 0 12px #4b5563;
}

section {
  margin-bottom: 30px;
}

section h2 {
  font-size: 1.8rem;
  color: #fbbf24;
  margin-bottom: 10px;
  border-left: 4px solid #fbbf24;
  padding-left: 10px;
}

section p, section ul {
  font-size: 1rem;
  line-height: 1.7;
  color: #d1d5db;
}

ul {
  list-style-type: disc;
  padding-left: 20px;
}

footer {
  text-align: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #374151;
  color: #6b7280;
  font-size: 0.9rem;
}