:root {
  --green-light: #a7d5b4;
  --green-dark: #224d36;
  --text-light: #f5f5f5;
  --text-dark: #222;
  --transition: 0.4s ease-in-out;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow-x: hidden;
}

body {
  font-family: "Inter", "Segoe UI", sans-serif;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
}

canvas#waves {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

@media (prefers-color-scheme: dark) {
  body { background: var(--green-dark); color: var(--text-light); }
  a { color: var(--green-light); }
}

@media (prefers-color-scheme: light) {
  body { background: var(--green-light); color: var(--text-dark); }
  a { color: var(--green-dark); }
}

.hero {
  text-align: center;
  padding: 4rem 1rem;
}

.hero-image {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  animation: float 8s ease-in-out infinite;
  opacity: 0.9;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

h1 {
  margin-top: 1rem;
  font-size: 2.2rem;
  letter-spacing: 1px;
}

.tagline {
  opacity: 0.8;
  margin-bottom: 2rem;
}

.links a {
  margin: 0 0.5rem;
  text-decoration: none;
  font-weight: bold;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.links a:hover {
  border-color: currentColor;
}

.about {
  max-width: 700px;
  margin: 2rem auto;
  text-align: center;
  padding: 0 1rem;
  line-height: 1.6;
}

footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.9rem;
  opacity: 0.8;
}