:root {
  --primary-color: #7c4dff;
  --secondary-color: #00b0ff;
  --accent-color: #ff8906;
  --bg-color: #0f0e17;
  --card-bg: #1f2029;
  --text-color: #fffffe;
  --text-secondary: #a7a9be;
  --border-color: #2e2f3e;
  --gradient: linear-gradient(135deg, #7c4dff 0%, #00b0ff 100%);
  --font-family: 'Inter', sans-serif;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

header {
  background: rgba(31, 32, 41, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1.25rem 0;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav h1 {
  margin: 0;
  font-size: 1.6rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.nav a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav a:hover {
  color: var(--secondary-color);
}

.hero {
  text-align: center;
  padding: 7rem 1rem;
  background: radial-gradient(circle at top, rgba(124, 77, 255, 0.15) 0%, transparent 65%);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 3.5rem;
}

.hero h2 {
  font-size: 3.2rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.15;
  letter-spacing: -1px;
}

.hero h2 span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  background: var(--gradient);
  color: #fff;
  padding: 0.9rem 2.25rem;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 700;
  font-size: 1.05rem;
  box-shadow: 0 4px 20px rgba(124, 77, 255, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(124, 77, 255, 0.6);
}

.content {
  margin-bottom: 4.5rem;
}

.section-title {
  text-align: center;
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 3rem;
  letter-spacing: -0.5px;
}

.section-title span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.opportunities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.opportunity-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.5rem;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.opportunity-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-color);
  box-shadow: 0 10px 30px rgba(124, 77, 255, 0.1);
}

.opportunity-card .icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(124, 77, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
  font-size: 1.8rem;
  font-weight: bold;
}

.opportunity-card h3 {
  font-size: 1.45rem;
  font-weight: 700;
  margin: 0 0 1rem;
  color: var(--text-color);
}

.opportunity-card p {
  color: var(--text-secondary);
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
}

footer {
  border-top: 1px solid var(--border-color);
  background: rgba(31, 32, 41, 0.5);
  text-align: center;
  padding: 3rem 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

footer a {
  color: var(--secondary-color);
  text-decoration: none;
  margin: 0 0.75rem;
  transition: color 0.3s ease;
}

footer a:hover {
  color: var(--primary-color);
}

@media (max-width: 768px) {
  .nav {
    flex-direction: column;
    gap: 1.25rem;
    text-align: center;
  }
  .nav ul {
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.25rem;
  }
  .hero {
    padding: 4.5rem 1rem;
  }
  .hero h2 {
    font-size: 2.2rem;
  }
  .hero p {
    font-size: 1.1rem;
  }
  .opportunities-grid {
    grid-template-columns: 1fr;
  }
  .opportunity-card {
    padding: 2rem 1.5rem;
  }
  footer div {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: center;
  }
  footer a {
    margin: 0.25rem 0;
  }
}