:root {
    --bg: #121214;
    --amber: #fbbf24;
    --text: #e4e4e7;
    --font: 'Plus Jakarta Sans', sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: var(--bg); color: var(--text); font-family: var(--font); overflow: hidden; height: 100vh; transition: background 0.3s; }

.nav { padding: 2.5rem 4rem; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid #27272a; }
.logo { font-size: 1.4rem; font-weight: 600; color: var(--amber); }
.toggle-container { font-size: 0.85rem; color: #a1a1aa; display: flex; align-items: center; gap: 10px; }

.hero { height: calc(100vh - 90px); display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 0 2rem; }
h1 { font-size: 3.5rem; font-weight: 600; line-height: 1.15; color: var(--amber); margin-bottom: 1.5rem; max-width: 850px; text-shadow: 0 0 30px rgba(251,191,36,0.3); }
p { font-size: 1.2rem; color: #a1a1aa; max-width: 600px; font-weight: 300; }