:root {
  --bg: #1c1f24;
  --panel: #2a2f38;
  --accent-green: #8fbc8f;
  --accent-amber: #d2b48c;
  --text: #e0e0e0;
  --text-muted: #a0a0a0;
}

* { box-sizing: border-box; margin:0; padding:0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  padding: 2rem;
  min-height: 100vh;
}

.screen-frame {
  max-width: 1100px;
  margin: 0 auto;
  background: var(--panel);
  border-radius: 16px;
  box-shadow: 0 0 40px rgba(143, 188, 143, 0.08),
              inset 0 0 80px rgba(210, 180, 140, 0.03);
  overflow: hidden;
  border: 1px solid rgba(143, 188, 143, 0.15);
}

header {
  padding: 1.5rem 3rem;
  border-bottom: 1px solid rgba(143, 188, 143, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav ul {
  display: flex;
  gap: 2rem;
  list-style: none;
}

nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 1.05rem;
  transition: color 0.3s ease;
}

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

.hero {
  padding: 6rem 3rem 4rem;
  text-align: center;
  background: linear-gradient(to bottom, rgba(143,188,143,0.05), transparent);
}

.hero h1 {
  font-size: 3.2rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--accent-amber);
  text-shadow: 0 0 20px rgba(210,180,140,0.3);
}

.hero p {
  font-size: 1.35rem;
  max-width: 720px;
  margin: 0 auto 2.5rem;
  color: var(--text-muted);
}

.cta {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: transparent;
  border: 2px solid var(--accent-green);
  color: var(--accent-green);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
}

.cta:hover {
  background: var(--accent-green);
  color: var(--bg);
  box-shadow: 0 0 25px rgba(143,188,143,0.4);
}

.section {
  padding: 4rem 3rem;
  border-top: 1px solid rgba(143,188,143,0.08);
}

.section h2 {
  font-size: 2.1rem;
  margin-bottom: 2rem;
  text-align: center;
  color: var(--accent-amber);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.card {
  background: rgba(255,255,255,0.03);
  padding: 2rem;
  border-radius: 12px;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  border: 1px solid rgba(143,188,143,0.1);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  border-color: rgba(143,188,143,0.25);
}

.card .icon {
  font-size: 2.8rem;
  margin-bottom: 1.2rem;
}

footer {
  padding: 2rem 3rem;
  text-align: center;
  font-size: 0.95rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(143,188,143,0.1);
}