:root {
    --bg: #05131d;
    --cyan: #38bdf8;
    --ice: #e0f2fe;
    --font: 'Plus Jakarta Sans', sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: var(--bg); color: var(--ice); font-family: var(--font); overflow: hidden; height: 100vh; }

canvas#iceCanvas { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; z-index: 1; opacity: 0.5; }

.nav { position: fixed; top: 0; width: 100%; padding: 2.5rem 4rem; display: flex; justify-content: space-between; border-bottom: 1px solid rgba(56,189,248,0.2); z-index: 10; }
.logo { font-size: 1.4rem; font-weight: 700; color: var(--cyan); }
.temp { font-size: 0.85rem; color: #7dd3fc; }

.hero { position: relative; z-index: 5; height: 100vh; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 0 2rem; }
h1 { font-size: 3.5rem; font-weight: 700; color: var(--cyan); text-shadow: 0 0 20px rgba(56,189,248,0.4); margin-bottom: 1.5rem; max-width: 850px; }
p { font-size: 1.2rem; color: #bae6fd; max-width: 600px; font-weight: 300; }