:root {
  --bg: #182a18;
  --card-bg: rgba(255 255 255 / 0.12);
  --text-primary: #e6f0d9;
  --text-secondary: #a3b089;
  --accent: #4CAF50;
  --accent-light: #c4e1b1;
  --accent-glow: rgba(76, 175, 80, 0.6);
  --shadow: rgba(0, 0, 0, 0.1);
  --glass-blur: 12px;
  --radius: 12px;
  --transition: 0.3s ease;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  padding: 2rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header h1 {
  font-size: 2.5rem;
  color: var(--accent);
}

.subtitle {
  margin-top: 0.5rem;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

nav.navbar {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  background-color: #111;
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 2rem;
}

nav.navbar a {
  color: white;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.2s;
}

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

.embed-container {
  width: 100%;
  max-width: 960px;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 20px var(--shadow);
  border: 2px solid var(--accent-light);
}

iframe {
  width: 100%;
  height: 100%;
  border: none;
}

footer {
  margin-top: 3rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-align: center;
}