* {
    box-sizing: border-box;
}

:root {
    --mx: 50%;
    --my: 50%;
}

body {
    margin: 0;
    font-family: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
    background: #050b18;
    color: #e9f3ff;
}

.hero {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    display: grid;
    place-items: center;
    text-align: center;
}

.mesh-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(1.2) blur(0.2px);
}

.tint {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx) var(--my), rgba(67, 158, 255, 0.4), transparent 38%),
                radial-gradient(circle at calc(100% - var(--mx)) calc(100% - var(--my)), rgba(19, 66, 144, 0.35), transparent 42%),
                radial-gradient(circle at 50% 85%, rgba(9, 32, 78, 0.5), transparent 55%),
                rgba(3, 12, 28, 0.55);
    backdrop-filter: blur(4px);
    transition: background 0.3s ease;
}

.content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
    padding: 2rem 1.5rem;
}

.logo {
    width: min(38vw, 360px);
    max-width: 520px;
    filter: drop-shadow(0 12px 32px rgba(0, 20, 53, 0.45));
    transition: transform 0.7s ease, filter 0.7s ease;
}

.logo:hover,
.logo:focus-visible {
    transform: translateY(-4px) scale(1.01);
    filter: drop-shadow(0 18px 42px rgba(0, 51, 122, 0.6));
}

.email {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.6rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.06);
    color: #e9f3ff;
    text-decoration: none;
    letter-spacing: 0.02em;
    font-weight: 600;
    font-family: "Barlow", "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
    transition: transform 0.4s ease, background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
    backdrop-filter: blur(6px);
}

.email:hover,
.email:focus-visible {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.28);
    transform: translateY(-2px);
    box-shadow: 0 14px 40px rgba(7, 47, 110, 0.32);
}

.email:focus-visible {
    outline: 2px solid rgba(146, 196, 255, 0.9);
    outline-offset: 4px;
}

@media (max-width: 640px) {
    .logo {
        width: min(72vw, 340px);
    }

    .email {
        width: 100%;
    }
}