.button {
    min-height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 0 22px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: 700;
    line-height: 1.1;
    cursor: pointer;
    transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}
.button:hover { transform: translateY(-2px); }
.button--primary {
    background: linear-gradient(135deg, var(--color-gold-bright), var(--color-gold));
    color: #151006;
    border-color: rgba(255, 222, 133, 0.7);
}
.button--primary:hover { background: var(--color-gold-bright); }
.button--ghost {
    background: rgba(8, 7, 6, 0.62);
    color: var(--color-text);
    border-color: rgba(246, 189, 61, 0.5);
    backdrop-filter: blur(12px);
}
.button--ghost:hover { border-color: var(--color-gold); background: rgba(246, 189, 61, 0.08); }
.button--full { width: 100%; }
.floating-whatsapp {
    position: fixed;
    right: max(22px, env(safe-area-inset-right));
    bottom: max(22px, env(safe-area-inset-bottom));
    z-index: 880;
    width: 62px;
    height: 62px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.52);
    border-radius: 50%;
    background: #20ce6d;
    color: #fff;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
    transition: transform var(--transition), background var(--transition);
}
.floating-whatsapp:hover { transform: translateY(-4px) scale(1.04); background: #17b95f; }
.floating-whatsapp .icon { width: 30px; height: 30px; }