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

body {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: radial-gradient(circle at 20% 20%, #132044 0%, #0a0e1a 60%, #05070d 100%);
    overflow: hidden;
    position: relative;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 200, 255, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 200, 255, 0.06) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 200, 255, 0.18) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

nav {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 28px 48px;
    z-index: 2;
}

.brand {
    color: #e8f6ff;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.brand span {
    color: #00d4ff;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 32px;
}

nav a {
    color: #9fb3c8;
    text-decoration: none;
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

main {
    position: relative;
    z-index: 2;
    text-align: center;
}

.tagline {
    color: #00d4ff;
    font-size: 0.95rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 18px;
    opacity: 0.85;
}

h1 {
    font-size: clamp(3rem, 10vw, 7rem);
    font-weight: 800;
    letter-spacing: 2px;
    color: #ffffff;
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.55), 0 0 80px rgba(0, 212, 255, 0.25);
}

h1 .accent {
    color: #00d4ff;
}

.subtitle {
    margin-top: 22px;
    color: #9fb3c8;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

footer {
    position: absolute;
    bottom: 28px;
    width: 100%;
    text-align: center;
    color: #4d637a;
    font-size: 0.75rem;
    letter-spacing: 1px;
    z-index: 2;
}