* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

/* --- BASE DO SITE --- */

body {
    background: #000;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    overflow-x: hidden;
}

h1 {
    font-weight: 700;
    font-size: 2.8rem;
    margin-bottom: 10px;
    text-shadow: 0 0 10px #00ffbb;
}

.sub {
    font-weight: 300;
    margin-bottom: 40px;
    opacity: .85;
}

/* --- GRID DOS BOTÕES --- */

.button-container {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(120px,1fr));
    gap: 18px;
    max-width: 780px;
    width: 100%;
}

/* --- BOTÕES CIRCULARES --- */

a.button {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    width: 110px;
    height: 110px;
    border-radius: 50%;

    color: red;
    background-color: #00ffbb22; /* neon sutil */
    font-size: 0.85rem;
    padding: 0;
    text-decoration: none;
    transition: all .25s ease;
    backdrop-filter: blur(6px);
    box-shadow: 0 0 18px #00ffbb44; /* glow suave */
}

a.button:hover {
    background-color: #00ffbb;
    color: #111;
    transform: translateY(-4px) scale(1.06);
    box-shadow: 0 0 25px #00ffbbaa; /* glow mais forte no hover */
}


/* --- MENU FLUTUANTE --- */

.floating-menu {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 1000;
}

.floating-menu a {
    width: 58px;
    height: 58px;
    color: #00ffbb;
    border: 2px solid #00ffbb;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    font-size: 1.5rem;
    background-color: rgba(0,255,187,0.1);
    backdrop-filter: blur(5px);
    transition: all .25s ease;
}

.floating-menu a:hover {
    background: #00ffbb;
    color: #111;
    transform: scale(1.12);
}

footer {
    position: absolute;
    bottom: 20px;
    font-size: .9rem;
    opacity: .6;
}